WO2017054571A1

WO2017054571A1 - Data transmission method, device and system

Info

Publication number: WO2017054571A1
Application number: PCT/CN2016/092397
Authority: WO
Inventors: 张朝阳; 王献斌; 张昱; 陈雁
Original assignee: 华为技术有限公司
Priority date: 2015-09-30
Filing date: 2016-07-29
Publication date: 2017-04-06
Also published as: CN106559175B; CN106559175A

Abstract

Disclosed are a data transmission method, device and system, which are used for solving the problems of low resource utilization rate and high implementation complexity in an existing multi-access mechanism. The method comprises: when determining that data needs to be sent, a user equipment sending a request message to a base station; receiving parameter information sent by the base station, wherein the parameter information comprises an access degree distribution function for representing the probability of an access degree randomly selected when accessing each resource block and a first random number seed for generating the access degree, which are configured by the base station for the user equipment, and a second random number seed for generating a type value corresponding to each resource block and a coupling width, which are configured by the base station for all pieces of user equipment; and according to the parameter information, randomly sending data to be sent on at least one resource block. Since a second random number seed for generating a type value corresponding to each resource block and a coupling width, which are configured by a base station for all pieces of user equipment, are used for limiting the sending of the pieces of user equipment, the decoding performance at a base station side is improved.

Description

Data transmission method, device and system

This application claims priority to Chinese Patent Application No. 201510638959.2, entitled "A Data Transmission Method, Apparatus and System", filed on September 30, 2015, the entire contents of which is incorporated herein by reference. In the application.

Technical field

The present invention relates to the field of communications technologies, and in particular, to a data transmission method, device, and system.

Background technique

With the development of the Internet of Things, the Internet of Vehicles and the wireless self-organizing network, cell density is the trend of the future network. Massive Access is one of the typical scenarios of the future network. Its characteristics are: First, the number of potential access users is large (thousands or even millions) and dynamically changes; second, the types of services are complex, different users There is a significant difference in quality of service (QoS). Third, the access network has a complex structure, a variety of topologies, and dynamic changes in channel characteristics. In the scenario of large-scale access, the access mechanism must have the characteristics of high capacity and support for massive links at a lower cost.

Traditional multiple access mechanisms include the following three categories:

1. Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Orthogonal Frequency Division Multiple Access (OFDMA) and other orthogonal access mechanisms.

In the above orthogonal access mechanism, for each access procedure, the base station needs to allocate resources (code, time, frequency band, etc.) of each user in advance (interactively without interference), because the number of access users is large and dynamically changed. The fixed allocation cannot fully utilize the statistical characteristics of the user service. For example, the video stream service is high-rate and regularly occurs, and the Machine to Machine (M2M) is a low rate but a burst, etc., therefore, the above orthogonal access mechanism Access capacity and access performance are limited by resource granularity and number, and resource utilization is usually not high.

Second, Interleaver Division Multiple Access (IDMA), no speed Non-orthogonal access mechanisms such as Rateless Multiple Access (RMA).

In IDMA, each user accesses the data and then transmits it through an interleaver. The base station recovers the received data through multi-user detection and single-user (SISO) decoder iteration; RMA utilizes no The rate code does not need to predict the good characteristics of the channel information in advance. Each user performs rate-free code encoding, and then accesses the channel with a certain probability. The base station recovers the received by multi-user detection and single-user (SISO) decoder iteration. After the data is successfully decoded, the ACK signal is broadcast and the user stops transmitting. In this type of access mechanism, since the base station side needs multi-user detection and SISO decoder iterative process, the implementation complexity is high.

3. Multi-carrier-Low Density Spreading (MC-LDS), non-orthogonal access mechanism such as Sparse Code Multiple Access (SCMA).

In this type of mechanism, the user selects a subset from all Resource Blocks (RBs) and then spreads its own data over the resource blocks contained in the subset. This decentralization process can be represented by a signature matrix. Since the base station side needs to design different signature matrices according to the change of the number of access users, the implementation complexity is high; before starting to transmit data, the base station needs to inform the user of the resource block allocation manner of each user, and the signaling overhead of the system is also Very big.

In summary, the traditional multiple access mechanism has the problems of low resource utilization and high implementation complexity.

Summary of the invention

The embodiment of the invention provides a data transmission method, device and system, which are used to solve the problem that the traditional multi-access mechanism has low resource utilization and high implementation complexity.

In a first aspect, a data transmission method includes:

When the user equipment determines that it needs to send data, it sends a request message to the base station to request the base station to configure parameter information required for data transmission of the user equipment.

The user equipment receives the parameter information sent by the base station, where the parameter information includes a probability that the base station configures, for the user equipment, a probability of randomly selecting an access degree when accessing each resource block. a degree distribution function and a first random number seed for generating an access degree to And a second random number seed and a coupling width configured by the base station for generating, by each user equipment, a type value corresponding to each resource block;

And the user equipment randomly sends the to-be-sent data on the at least one resource block according to the parameter information.

With reference to the first aspect, in a first possible implementation, the user equipment randomly sends data to be sent on the at least one resource block according to the parameter information, including:

Determining, by the user equipment, an algorithm for generating a type value of each resource block according to the second random number seed, and using the determined algorithm, generating a type value corresponding to each resource block;

For each resource block, the user equipment determines, according to the type value corresponding to the resource block and the coupling width, that the transmission degree corresponding to the resource block is satisfied, according to the access degree distribution function and the a random number seed is generated, the access degree d is generated, d modulation symbols are randomly selected from the modulation symbol sequence corresponding to the data to be transmitted, and the selected d modulation symbols are transmitted through the resource block.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in a second possible implementation manner, the sending condition corresponding to the resource block is: a user number of the user equipment and the resource block The absolute value of the difference of the type values is less than or equal to the coupling width of the base station configuration, wherein the value range of the resource block ranges from [1-w, N+w], and w represents the coupling width. , 0 ≤ w < N, N represents the number of user equipment.

With reference to the first aspect, or the first possible implementation manner of the first aspect, in a third possible implementation manner, the sending condition corresponding to the resource block is: the L-set modulation symbol sequence of the user equipment exists And a sequence of modulation symbols whose absolute value of the difference between the sequence number and the type value of the resource block is less than or equal to a coupling width, where the value range of the resource block ranges from [1-w, L+w], w represents the coupling width.

With the third possible implementation of the first aspect, in a fourth possible implementation, after the user equipment sends the request message to the base station, the method further includes:

Receiving, by the user equipment, the number L of information bits configured by the base station for all user equipments; the user equipment setting the number of information bits according to the number of blocks configured by the base station The data to be transmitted is divided into L shares on average, and the L pieces of data to be transmitted are separately encoded and modulated to obtain a sequence of L sets of modulation symbols corresponding to the data to be transmitted;

For each resource block, the user equipment randomly selects d modulations from the modulation symbol sequence after determining that the transmission condition corresponding to the resource block is satisfied according to the type value corresponding to the resource block and the coupling width. Symbols, including:

For each resource block, the user equipment determines, according to the type value corresponding to the resource block and the coupling width, a modulation symbol sequence that satisfies a transmission condition corresponding to the resource block, and is determined from the determined modulation symbol sequence. Randomly select d modulation symbols.

In a second aspect, a data receiving method includes:

After receiving the request message sent by the user equipment, the base station configures parameter information required for data transmission for the user equipment;

The base station sends the parameter information, where the parameter information includes an access degree distribution function configured by the base station for the user equipment to characterize a probability of randomly selecting an access degree when accessing each resource block. And a first random number seed for generating an access degree, and a second random number seed and a coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block;

The base station demodulates and decodes the data sent by the received user equipment according to the parameter information, to obtain complete data sent by the user equipment.

With reference to the second aspect, in a first possible implementation manner, the base station performs demodulation and decoding processing on the data sent by the user equipment, according to the parameter information, to obtain complete data sent by the user equipment. ,include:

Determining, by the base station, an algorithm for generating a type value of each resource block according to the second random number seed, and using the determined algorithm, generating a type value corresponding to each resource block;

For each resource block, the base station determines, according to the type value corresponding to the resource and the coupling width, the user equipment on the resource block that satisfies the sending condition corresponding to the resource block, and according to the sending condition The access degree distribution function and the first random number seed of the probability of the access degree of the user equipment, generate the access degree d, and determine each of the satisfied data from the demodulated data sequence Decoding a bit sequence of d bits transmitted by the user equipment of the transmission condition on the resource block and a relationship with a complete bit sequence sent by the user equipment;

And the base station according to a relationship between a bit sequence of d bits transmitted by the user equipment that satisfies the sending condition on the resource block on the resource block and a complete bit sequence sent by the user equipment, The bit sequence corresponding to the user equipment that satisfies the sending condition on the resource block performs decoding processing to obtain complete data sent by the user equipment.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a second possible implementation manner, the sending condition corresponding to the resource block is: a user number of the user equipment and the resource block The absolute value of the difference of the type values is less than or equal to the coupling width of the base station configuration, wherein the value range of the resource block ranges from [1-w, N+w], and w represents the coupling width. , N represents the number of user equipment;

The base station determines, from the demodulated data sequence, a relationship between a bit sequence of d bits transmitted by the user equipment that satisfies the sending condition on the resource block and a complete bit sequence sent by the user equipment: The position of the bit sequence of d bits transmitted by the user equipment on the resource block in a complete bit sequence transmitted by the user equipment.

With reference to the second aspect, or the first possible implementation manner of the second aspect, in a third possible implementation manner, the sending condition corresponding to the resource block is: the L modulation symbol sequence of the user equipment exists And a sequence of modulation symbols whose absolute value of the difference between the sequence number and the type value of the resource block is less than or equal to a coupling width, where the value range of the resource block ranges from [1-w, L+w], w represents the coupling width;

The base station determines, from the demodulated data sequence, a relationship between a bit sequence of d bits transmitted by the user equipment that satisfies the sending condition on the resource block and a complete bit sequence sent by the user equipment: And the bit sequence of the d-bit transmitted by the user equipment on the resource block corresponds to a modulation symbol sequence whose absolute value of the difference between the sequence number sent by the user equipment and the type value of the resource block is less than or equal to the coupling width. The position in the bit sequence.

With reference to the third possible implementation of the second aspect, in a fourth possible implementation, the parameter information further includes: a number L of information bit blocks configured by the base station for all user equipments.

With reference to the second aspect, in a fifth possible implementation, the method further includes:

The base station reconfigures part or all of the parameter information when determining that the number of the user equipment changes.

A third aspect is a user equipment, where the user equipment includes:

a sending module, configured to send a request message to the base station to request the base station to configure parameter information required for data transmission by the base station, when the user equipment to which the user equipment belongs needs to send data;

a receiving module, configured to receive parameter information sent by the base station, where the parameter information includes a probability that the base station configures, for the user equipment, a probability of randomly selecting an access degree when accessing each resource block. An access degree distribution function and a first random number seed for generating an access degree, and a second random number seed and a coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block;

And a processing module, configured to control, according to the parameter information, the sending module to randomly send the to-be-sent data on the at least one resource block.

With reference to the third aspect, in a first possible implementation manner, the processing module is specifically configured to:

Determining, according to the second random number seed, an algorithm for generating a type value of each resource block, and using the determined algorithm, generating a type value corresponding to each resource block;

For each resource block, according to the type value corresponding to the resource block and the coupling width, after determining that the transmission condition corresponding to the resource block is satisfied, according to the access degree distribution function and the first random number seed And generating the access degree d, randomly selecting d modulation symbols from the modulation symbol sequence corresponding to the data to be transmitted, and controlling the sending module to send the selected d modulation symbols by using the resource block.

With reference to the third aspect, or the first possible implementation manner of the third aspect, in a second possible implementation, the sending condition corresponding to the resource block is: a user number of the user equipment and the resource block The absolute value of the difference of the type values is less than or equal to the coupling width of the base station configuration, wherein the value range of the resource block ranges from [1-w, N+w], and w represents the coupling width. , 0 ≤ w < N, N represents the number of user equipment.

Combining the third aspect, or the first possible implementation of the third aspect, in the third possibility In the implementation manner, the sending condition corresponding to the resource block is: the absolute value of the difference between the sequence number of the L-group modulation symbol sequence of the user equipment and the type value of the resource block is less than or equal to the coupling width. A sequence of symbols, wherein the type value of the resource block has a value range of [1-w, L+w], and w represents the coupling width.

With the third possible implementation of the third aspect, in a fourth possible implementation, the receiving module is further configured to: receive, by the base station, a number L of information bits configured for all user equipments;

The processing module is specifically configured to: according to the number L of information bits configured by the base station, divide the data to be sent of the user equipment into L shares, and separately encode and modulate the data to be sent by the L pieces, a sequence of L sets of modulation symbols corresponding to the data to be transmitted;

For each resource block, determining, according to the type value corresponding to the resource block and the coupling width, a modulation symbol sequence that satisfies a transmission condition corresponding to the resource block, and randomly selecting d from the determined modulation symbol sequence. Modulation symbol.

In a fourth aspect, a base station includes:

a parameter configuration module, configured to: after receiving the request message sent by the user equipment, configure parameter information required for data transmission by the user equipment;

a sending module, configured to send the parameter information, where the parameter information includes a probability that the parameter configuration module configures, for the user equipment, a probability of randomly selecting an access degree when accessing each resource block And a first random number seed for generating an access degree, and a second random number seed and a coupling width configured by the parameter configuration module for generating a type value corresponding to each resource block configured by all user equipments ;

The processing module is configured to perform demodulation and decoding processing on the data sent by the received user equipment according to the parameter information, to obtain complete data sent by the user equipment.

With reference to the fourth aspect, in a first possible implementation manner, the processing module is specifically configured to:

For each resource block, determining according to the type value corresponding to the resource and the coupling width Generating the user equipment on the resource block that satisfies the transmission condition corresponding to the resource block, and according to the access degree distribution function and the first random number seed of the probability of the access degree of the user equipment that satisfies the sending condition, a degree of access d, determining, from the demodulated data sequence, a bit sequence of d bits transmitted by the user equipment satisfying the transmission condition on the resource block and a complete bit sequence transmitted by the user equipment Relationship;

Determining, for each of the resource blocks, a bit sequence of d bits transmitted by the user equipment that satisfies the transmission condition on each of the resource blocks on the resource block and a relationship with a complete bit sequence sent by the user equipment The bit sequence corresponding to the user equipment that satisfies the transmission condition is subjected to decoding processing to obtain complete data sent by the user equipment.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a second possible implementation manner, the sending condition corresponding to the resource block is: a user number of the user equipment and the resource block The absolute value of the difference of the type values is less than or equal to the coupling width of the parameter configuration module configuration, wherein the value type of the resource block ranges from [1-w, N+w], and w represents Coupling width, N represents the number of user equipment; the processing module is specifically used to:

Determining, from the demodulated data sequence, a relationship between a bit sequence of d bits transmitted by the user equipment that satisfies the transmission condition on the resource block and a complete bit sequence sent by the user equipment: the user equipment The position of the bit sequence of d bits transmitted on the resource block in the complete bit sequence transmitted by the user equipment.

With reference to the fourth aspect, or the first possible implementation manner of the fourth aspect, in a third possible implementation, the sending condition of the resource block is: the L modulation symbol sequence of the user equipment is And a sequence of modulation symbols whose absolute value of the difference between the sequence number and the type value of the resource block is less than or equal to a coupling width, where the value range of the resource block ranges from [1-w, L+w], w represents the coupling width; the processing module is specifically used to:

Determining, from the demodulated data sequence, a relationship between a bit sequence of d bits transmitted by the user equipment that satisfies the transmission condition on the resource block and a complete bit sequence sent by the user equipment: the user equipment The absolute value of the difference between the sequence number of the d-bit transmitted by the user equipment and the type value of the resource block transmitted on the resource block is less than or equal to the coupling width The position of the bit sequence corresponding to the sequence of modulation symbols.

With reference to the third possible implementation of the fourth aspect, in a fourth possible implementation, the parameter configuration module is further configured to: configure a number L of information bits for all user equipments;

The parameter information further includes: a number L of information bit blocks configured by the parameter configuration module for all user equipments.

In conjunction with the fourth aspect, in a fifth possible implementation, the parameter configuration module is further configured to:

When it is determined that the number of user devices changes, some or all of the parameter information is reconfigured.

A fifth aspect is a user equipment, where the user equipment includes:

a transceiver, a processor, a communication interface, and a system bus; wherein:

The transceiver is configured to: when the user equipment to which the user equipment belongs needs to send data, send a request message to the base station to request the base station to configure parameter information required for data transmission by the user equipment; and receive parameters sent by the base station. Information, where the parameter information includes an access degree distribution function configured by the base station for the user equipment to characterize a probability of randomly selecting an access degree when accessing each resource block, and used to generate an access degree a first random number seed, and a second random number seed and a coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block;

The processor is configured to control, according to the parameter information, the transceiver 91 to randomly send data to be sent on at least one resource block.

With reference to the fifth aspect, in a first possible implementation manner, the processor is specifically configured to:

For each resource block, according to the type value corresponding to the resource block and the coupling width, after determining that the transmission condition corresponding to the resource block is satisfied, according to the access degree distribution function and the first random number seed Generating the access degree d, randomly selecting d modulation symbols from the modulation symbol sequence corresponding to the data to be transmitted, and controlling the transceiver to transmit the selected d modulation symbols through the resource block.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, in a second possible implementation manner, the sending condition corresponding to the resource block is: a user number of the user equipment and the resource block The absolute value of the difference of the type values is less than or equal to the coupling width of the base station configuration, wherein the value range of the resource block ranges from [1-w, N+w], and w represents the coupling width. , 0 ≤ w < N, N represents the number of user equipment.

With reference to the fifth aspect, or the first possible implementation manner of the fifth aspect, in a third possible implementation manner, the sending condition corresponding to the resource block is: the L-set modulation symbol sequence of the user equipment is And a sequence of modulation symbols whose absolute value of the difference between the sequence number and the type value of the resource block is less than or equal to a coupling width, where the value range of the resource block ranges from [1-w, L+w], w represents the coupling width.

With reference to the third possible implementation manner of the fifth aspect, in a fourth possible implementation, the transceiver is further configured to: receive, by the base station, a number L of information bits configured for all user equipments;

The processor is specifically configured to divide the to-be-sent data of the user equipment into L shares according to the information bit-blocking number L configured by the base station, and separately encode and modulate the L-to-be-sent data, to obtain a sequence of L sets of modulation symbols corresponding to the data to be transmitted;

In a sixth aspect, a base station includes:

The processor is configured to: after the transceiver receives the request message sent by the user equipment, configure parameter information required for data transmission for the user equipment;

The transceiver is configured to: send the parameter information, where the parameter information includes a probability that the processor configures, for the user equipment, a probability of randomly selecting an access degree when accessing each resource block. An in-degree distribution function and a first random number seed for generating an access degree, and a second along with the processor configured for all user equipments to generate a type value corresponding to each resource block Number of seeds and coupling width;

The processor is configured to: perform demodulation and decoding processing on the data sent by the received user equipment according to the parameter information, to obtain complete data sent by the user equipment.

In conjunction with the sixth aspect, in a first possible implementation, the processor is specifically configured to:

Determining, according to the type value corresponding to the resource and the coupling width, the user equipment on the resource block that meets the sending condition corresponding to the resource block, and according to the user equipment that meets the sending condition, The access degree distribution function of the probability of access degree and the first random number seed, generating the access degree d, and determining, from the demodulated data sequence, each user equipment that satisfies the transmission condition a bit sequence of d bits transmitted on the resource block and its relationship with the complete bit sequence transmitted by the user equipment;

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a second possible implementation, the sending condition corresponding to the resource block is: a user number of the user equipment and the resource block The absolute value of the difference value of the type value is less than or equal to the coupling width of the processor configuration, wherein the value range of the resource block has a value range of [1-w, N+w], and w represents the coupling Width, N represents the number of user equipment; the processor is specifically used to:

With reference to the sixth aspect, or the first possible implementation manner of the sixth aspect, in a third possible implementation manner, the sending condition corresponding to the resource block is: L modulators of the user equipment The sequence of modulation symbols in which the absolute value of the difference between the sequence number and the type value of the resource block is less than or equal to the coupling width, wherein the value range of the resource block ranges from [1-w, L] +w], w represents the coupling width; the processor is specifically used to:

Determining, from the demodulated data sequence, a relationship between a bit sequence of d bits transmitted by the user equipment that satisfies the transmission condition on the resource block and a complete bit sequence sent by the user equipment: the user equipment And the bit sequence of the d bit transmitted on the resource block is in a bit sequence corresponding to a modulation symbol sequence whose absolute value of the difference between the sequence number sent by the user equipment and the type value of the resource block is less than or equal to the coupling width. s position.

In conjunction with the third possible implementation of the sixth aspect, in a fourth possible implementation, the processor is further configured to: configure a number L of information bits for all user equipments.

The parameter information further includes: a number L of information bit blocks configured by the processor for all user equipments.

In conjunction with the sixth aspect, in a fifth possible implementation, the processor is further configured to:

A seventh aspect is a communication system, the system comprising:

The user equipment is configured to send a request message to the base station to request the base station to configure parameter information required for data transmission by the base station, and receive parameter information sent by the base station according to the parameter. Information, randomly sending data to be sent on at least one resource block;

a base station, configured to: after receiving the request message sent by the user equipment, configure parameter information required for data transmission for the user equipment; send the parameter information; send, according to the parameter information, the received user equipment Demodulating and decoding the data to obtain complete data sent by the user equipment;

The parameter information includes an access degree distribution function configured by the base station for the user equipment to characterize a probability of randomly selecting an access degree when accessing each resource block, and a method for generating an access degree. a random number seed, and the base station is configured for all user equipments for generating each The second random number seed and coupling width of the type value corresponding to the resource block.

In the method, device, and system provided by the embodiment of the present invention, the user equipment randomly sends data to be sent on at least one resource block according to the parameter information configured by the base station, where the base station is configured for the user equipment. An access degree distribution function characterizing a probability of randomly selecting an access degree when accessing each resource block and a first random number seed for generating an access degree, so that random access of the user equipment forms a distributed no rate And a second random number seed and a coupling width configured by the base station for generating the type value corresponding to each resource block by the base station to limit transmission of the user equipment, so that the decoding performance of the base station side can be improved. In addition, since the base station does not need to specify a different resource allocation vector or design signature matrix for each user equipment, the signaling overhead is greatly reduced.

DRAWINGS

FIG. 1 is a schematic flowchart diagram of a data sending method according to the present invention;

2 is a schematic flow chart of a data receiving method provided by the present invention;

3 is a schematic flow chart of Embodiment 1 of the present invention;

4 is a schematic diagram of a correspondence between a modulation symbol and a resource block sent by a user equipment according to Embodiment 1 of the present invention;

FIG. 5 is a schematic flowchart of Embodiment 2 of the present invention; FIG.

FIG. 6 is a schematic diagram of a correspondence between a modulation symbol and a resource block sent by a user equipment according to Embodiment 2 of the present invention;

FIG. 7 is a schematic diagram of a user equipment provided by the present invention; FIG.

FIG. 8 is a schematic diagram of a base station according to the present invention; FIG.

FIG. 9 is a schematic diagram of another user equipment provided by the present invention; FIG.

FIG. 10 is a schematic diagram of another base station according to the present invention; FIG.

11 is a schematic diagram of a communication system provided by the present invention.

detailed description

The embodiments of the present invention are further described in detail below with reference to the accompanying drawings. It is to be understood that the embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

A data sending method is provided in the embodiment of the present invention. As shown in FIG. 1 , the method includes:

S11. When the user equipment determines that it needs to send data, the user equipment sends a request message to the base station to request the base station to configure parameter information required for data transmission by the user equipment.

S12. The user equipment receives the parameter information sent by the base station, where the parameter information includes a probability that the base station configures for the user equipment to characterize the degree of access randomly selected when accessing each resource block. An access degree distribution function and a first random number seed for generating an access degree, and a second random number seed and a coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block ;

S13. The user equipment randomly sends data to be sent on at least one resource block according to the parameter information.

In the embodiment of the present invention, the user equipment randomly sends the to-be-sent data to the at least one resource block according to the parameter information configured by the base station, where the base station is configured to represent the access to each resource block. The access degree distribution function of the probability of the randomly selected access degree and the first random number seed used to generate the access degree, so that the random access of the user equipment forms a distributed rateless code, and the base station is The second random number seed and the coupling width configured by all user equipments for generating the type value corresponding to each resource block are used to limit the transmission of the user equipment, thereby improving the decoding performance of the base station side. In addition, since the base station does not need to specify a different resource allocation vector or design signature matrix for each user equipment, the signaling overhead is greatly reduced.

In the embodiment of the present invention, the user equipment in S13 randomly sends the data to be sent on the at least one resource block according to the parameter information, including:

For each resource block, the user equipment determines, according to the type value corresponding to the resource block and the coupling width, that after the transmission condition corresponding to the resource block is satisfied, according to the access degree distribution a function and the first random number seed, generating the access degree d, randomly selecting d modulation symbols from a modulation symbol sequence corresponding to the data to be transmitted, and transmitting the selected d modulation symbols through the resource block, Where d is an integer greater than or equal to zero.

In the solution provided by the embodiment of the present invention, the random access of the user equipment forms a distributed rate-free code, and the base station only needs to identify the user equipment that meets the sending condition on each resource block and the resource block according to the determined The factor graph of the correspondence between the transmitted data can be iteratively decoded, and does not require complex multi-user detection and SISO decoder iterative process, which reduces the complexity of the system. The data transmission method provided by the embodiment of the present invention utilizes the characteristics of the rate-free code automatic adaptation channel, and can adaptively approach the channel capacity. In addition, since the base station does not need to specify a different resource allocation vector or design signature matrix for each user equipment, the signaling overhead is greatly reduced.

In the embodiment of the present invention, two alternative implementation manners are proposed for different application scenarios:

Mode 1. Coupling between user equipments is preferably applied to a scenario where the number of user equipments is large and the amount of data transmitted by each user equipment is small.

In this manner, after the user equipment encodes and modulates the data to be transmitted, the user equipment obtains a set of modulation symbol sequences corresponding to the data to be transmitted, where the group of modulation symbol sequences includes N _m modulation symbols.

In this mode, the sending conditions corresponding to each resource block include:

An absolute value of a difference between a user number of the user equipment and a type value of the resource block is less than or equal to a coupling width configured by the base station;

The value range of the resource block ranges from [1-w, N+w], w represents the coupling width, and N represents the number of user equipments, and 0≤w<N.

In this manner, for each resource block, the access degree d generated by the user equipment ranges from 0 ≤ d ≤ N _m .

The access degree distribution function and the first random number seed are configured by the base station for each user equipment in advance.

For example, the access degree distribution function configured by the base station for the user equipment m

It indicates that the user equipment m will randomly select the access degree d in each resource block with a probability p _m,d , and randomly select d symbols to access the resource block, where d=0 indicates that the user equipment m does not access the resource block. . User equipment m according to the access degree distribution function

Random access is equivalent to: first access the channel with probability p _m =1-p _m,0 , and then according to the access degree distribution function

Select d' (1 ≤ d' ≤ N _m ) symbols to random access.

It should be noted that, when the number of user equipments changes, the base station reconfigures an access degree distribution function and a first random number seed for each user equipment. When the number of user equipments needs to be changed, the base station only needs to adjust the access degree distribution function of each user equipment to adjust the access probability of the user equipment, which is very suitable for the number of users in large-scale access. The situation of change.

It should be noted that the second random number seed and the coupling width are pre-configured by the base station, and are notified to each user equipment by using a broadcast manner, and the second random number seed and the coupling width are the same for each user equipment. In this way, the algorithms determined by each user equipment are the same, so that the type values of each resource block determined are consistent.

In this mode, for any resource block, each user equipment first determines whether the user number satisfies the transmission condition corresponding to the resource block; if yes, the user equipment randomly accesses the resource block to send data according to the access degree distribution function ( That is, the user equipment generates the access degree d according to the access degree distribution function and the first random number seed configured by the base station for the user equipment, and randomly selects d modulation symbols from the modulation symbol sequence; if not, the user The device remains silent on the resource block, that is, the resource block is not accessed to send data. The process makes the access of the user equipment form a spatial coupling mode, which is beneficial to improve the performance of the Belief Propagation (BP) decoding algorithm and the overall performance of the system. Data sent by user equipment whose user number is close to 1 or whose user number is close to N The decoding is successful with a large probability. As the iteration progresses, the data of the user equipment with the user number close to 1 or the user number close to N no longer needs to participate in the iteration, that is, as the iterative process proceeds, the more iterative decoding graph is needed. The smaller the size, the further the decoding complexity is reduced.

Mode 2: Coupling within the user equipment, preferably applied to a scenario where the number of user equipments is small and the amount of data transmitted by each user equipment is large.

In this mode, the parameter information received in S12 further includes: the base station is the number L of information bit blocks configured by the user equipment, so that each of the user equipments needs to send according to the number of information bits. The data is divided into groups.

In this mode, after S11, the method further includes:

Receiving, by the user equipment, the number L of information bits configured by the base station for all user equipments;

The user equipment divides the data to be sent of the user equipment into L shares according to the number L of information bits configured by the base station, and separately encodes and modulates the data to be transmitted, to obtain the to-be-sent The L group of modulation symbol sequences corresponding to the data. Wherein, each group of modulation symbol sequences includes N _m /L modulation symbols.

In this manner, for each resource block, the user equipment generates an access degree d according to the access degree distribution function of the user equipment and the first random number seed. Where 0 ≤ _d ≤ N _m / L.

The access degree distribution function and the first random number seed are configured by the base station for each user equipment in advance. For the description of the access degree distribution function, refer to mode 1, and details are not described here.

Correspondingly, for each resource block, the user equipment randomly selects from the modulation symbol sequence after determining that the transmission condition corresponding to the resource block is satisfied according to the type value corresponding to the resource block and the coupling width. d modulation symbols, including:

In this manner, the sending conditions corresponding to the resource block include:

a sequence of modulation symbols in which the absolute value of the difference between the sequence number and the type value of the resource block is less than or equal to the coupling width in the L group modulation symbol sequence of the user equipment;

The value range of the resource block ranges from [1-w, L+w], and w represents the coupling width, and 0≤w<L.

In this manner, the value of the type corresponding to each resource block ranges from [1-w, L+w], and w represents the coupling width of the base station configuration.

Based on any of the above embodiments, the method further includes:

After receiving the acknowledgement (ACK) message fed back by the base station, the user equipment stops sending the to-be-sent data.

For example, if the user equipment sends the to-be-sent data by using a data transmission, after receiving the ACK message fed back by the base station, stopping sending the to-be-sent data; if the data volume of the to-be-sent data is compared If the user equipment needs to send the to-be-sent data through multiple data transmissions, after receiving the ACK message fed back by the base station, the next data transmission is started. If the user equipment does not receive the ACK message fed back by the base station, the user equipment continues to send the to-be-sent data according to step S13.

Based on the same inventive concept, an embodiment of the present invention further provides a data receiving method. As shown in FIG. 2, the method includes:

S21. After receiving the request message sent by the user equipment, the base station configures parameter information required for data transmission for the user equipment.

S22. The base station sends the parameter information, where the parameter information includes an access degree configured by the base station for the user equipment to represent a probability of randomly selecting an access degree when accessing each resource block. a distribution function and a first random number seed for generating an access degree, and a second random number seed and a coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block;

S23. The base station performs demodulation and decoding processing on the data sent by the received user equipment according to the parameter information, to obtain complete data sent by the user equipment.

In the embodiment of the present invention, the base station in S23 sets the received user according to the parameter information. The data to be sent is demodulated and decoded to obtain complete data sent by the user equipment, including:

For each resource block, the base station determines, according to the type value corresponding to the resource and the coupling width, the user equipment on the resource block that satisfies the sending condition corresponding to the resource block, and according to the sending condition The access degree distribution function and the first random number seed of the probability of the access degree of the user equipment, the access degree d is generated, and each user equipment that satisfies the sending condition is determined from the demodulated data sequence a bit sequence of d bits transmitted on the resource block and its relationship with a complete bit sequence transmitted by the user equipment;

In an embodiment of the present invention, as an optional implementation manner, the sending condition corresponding to the resource block is: an absolute value of a difference between a user number of the user equipment and a type value of the resource block is less than or equal to The coupling width of the base station configuration, where the type value of the resource block ranges from [1-w, N+w], w represents the coupling width, and N represents the number of user equipments;

As another optional implementation manner, a sequence of modulation symbols in which the absolute value of the difference between the sequence number and the type value of the resource block is less than or equal to the coupling width exists in the L modulation symbol sequences of the user equipment, where The type value of the resource block ranges from [1-w, L+w], and w represents the coupling width;

Determining, by the base station, each user setting that satisfies the transmission condition from the demodulated data sequence The relationship between the bit sequence of the d-bit transmitted on the resource block and the complete bit sequence sent by the user equipment is: the bit sequence of the d-bit transmitted by the user equipment on the resource block is sent by the user equipment The absolute value of the difference between the sequence number and the type value of the resource block is less than or equal to the position in the bit sequence corresponding to the modulation symbol sequence of the coupling width.

In this manner, the parameter information further includes: a number L of information bit blocks configured by the base station for all user equipments.

Based on any of the above embodiments, the method further includes:

Decoding, by the base station, a data subsequence corresponding to the user equipment that satisfies the sending condition on all resource blocks, and successfully decoding the complete data sent by the user equipment, and then feeding back an ACK message to the user equipment, So that the user equipment stops the transmission of current data. Thereby, the characteristic of adapting to the channel change without rate code is utilized, that is, no rate coding, when the user equipment receives the ACK message, the encoding process is stopped, and the code rate is determined. Therefore, when the channel is poor, the user equipment needs to send more coded bits to receive the ACK message. Conversely, when the channel is good, the user equipment sends less ACK bits to receive the ACK message.

Based on any of the above embodiments, the method further includes:

For example, the base station determines whether the number of the user equipment changes by receiving a request message sent by the user equipment, and reconfigures the number of the user equipment when it is determined that the number of the user equipment changes. Some or all of the parameter information. Certainly, when determining that the number of the user equipment changes, the base station may not reconfigure the parameter information, and still cause the user equipment to perform processing according to the previously configured parameter information.

The data transmission method provided by the embodiment of the present invention is described in detail below through the interaction process between the user equipment and the base station by using two specific embodiments.

Embodiment 1: Coupling between user equipments, as shown in FIG. 3, this embodiment includes:

1. When the user equipment has data to send, send a request message to the base station to register with the base station according to the existing method.

2. The base station configures a user number, an access degree distribution function, and an access degree random number seed (ie, a first random number seed) for each user equipment, and configures a random number seed of the resource block type indicator for all user equipments (ie, Two random number seeds) and coupling width parameters.

3. The base station sends the configured parameter information to the user equipment. The base station broadcasts a second random number seed configured for all user equipments and a coupling width parameter w.

4. The user equipment uses a linear encoder based on a sparse graph structure such as a Low Density Parity Check (LDPC) code, and then performs linear modulation such as Binary Phase Shift Keying (BPSK). Its modulation symbol sequence (collection).

5. For each resource block, the user equipment randomly selects a t from {1-w,...,1,2,...,N+w} through the resource block type indicating logic operation as the resource. The type value of the block. For a resource block with a value of t, the user equipment determines, according to the user ID and the type value of the resource block, whether the user equipment satisfies the sending condition of the resource block, that is, the user number of the user equipment is different from the type value of the resource block. Whether the absolute value of the value is less than or equal to the coupling width configured by the base station.

6. The user equipment that satisfies the transmission condition of the resource block randomly selects the access degree d according to the access degree distribution function and the access degree random number seed; then, the user equipment randomly selects d modulations from its modulation symbol set. The symbols are linearly combined and the linearly combined modulation symbols are transmitted through the resource block. For example, the correspondence between the modulation symbols sent by the user equipment and the resource blocks is as shown in FIG. 4 .

After the base station receives the demodulation and obtains the soft demodulation information corresponding to each resource block, for each resource block, the base station determines, according to the type value and the coupling width of the resource block, the corresponding transmission of the resource block on the resource block. The user equipment of the condition, and according to the random number seed of the access degree of the user equipment that satisfies the sending condition, determines which bits of the user equipment of the user equipment that the resource block meets the sending condition, thereby forming a unified factor graph, and BP iterative multi-user detection and decoding is performed on the figure, and ACK feedback is broadcast after successful decoding.

8. When the user equipment receives the ACK feedback from the base station, it stops sending the current symbol sequence and starts transmitting the next set of data. User equipment that has not received ACK feedback continues to send the current character The sequence of numbers until the ACK feedback of the base station is received.

Embodiment 2: Coupling in a user equipment, as shown in FIG. 5, this embodiment includes:

2. The base station configures a user number, an access degree distribution function, and an access degree random number seed (ie, a first random number seed) for each user equipment, and configures a random number seed of the resource block type indicator for all user equipments (ie, Two random number seeds), information bit number L and coupling width parameter.

3. The base station sends the configured parameter information to the user equipment. The base station broadcasts a resource block type indicator with a random number seed, an information bit block number L, and a coupling width parameter w.

4. The user equipment first divides the n-bit information to be transmitted into L parts, and obtains the coded bits by the LDPC encoders numbered {1, 2, ..., L}, and then performs BPSK modulation, thereby obtaining L modulation symbol sequences (sets).

5. For each resource block, the user equipment randomly selects a t from {1-w,...,1,2,...,N+w} through the resource block type indicating logic operation as the resource. The type value of the block. For a resource block of type t, the user equipment determines, according to the sequence number of the modulation symbol sequence and the type value of the resource block, whether the user equipment satisfies the transmission condition of the resource block, that is, whether the modulation symbol sequence of the user equipment exists. Whether the absolute value of the difference between the sequence number and the type value of the resource block is less than or equal to the modulation symbol sequence of the coupling width configured by the base station.

After determining that the transmission condition of the resource block is met, the user equipment generates an access degree d according to the access degree distribution function and the access degree random number seed; and then, the user equipment satisfies the transmission condition of the resource block. The d modulation symbols are randomly selected in the modulation symbol sequence for linear combination, and the linearly combined modulation symbols are transmitted through the resource block. For example, the correspondence between the modulation symbols transmitted by the user equipment and the resource blocks is as shown in FIG. 6.

After the base station receives the demodulation and obtains the soft demodulation information corresponding to each resource block, for each resource block, the base station determines, according to the type value and the coupling width of the resource block, that the resource block meets the corresponding transmission of the resource block. User equipment of the condition, and according to the access degree of the user equipment that satisfies the transmission condition Counting the random number seed, determining which bits of the user equipment of the resource block are occupied by the transmission condition, thereby forming a unified factor graph, and performing BP iterative multi-user detection and decoding on the graph, and broadcasting after successful decoding ACK feedback.

8. When the user equipment receives the ACK feedback from the base station, it stops sending the current symbol sequence and starts transmitting the next set of data. The user equipment that has not received the ACK feedback continues to transmit the current symbol sequence until the ACK feedback of the base station is received.

The above method processing flow can be implemented by a software program, which can be stored in a storage medium, and when the stored software program is called, the above method steps are performed.

Based on the same inventive concept, a user equipment is also provided in the embodiment of the present invention. The principle of the user equipment is similar to the foregoing data transmission method. Therefore, the implementation of the user equipment can refer to the implementation of the method, and the repetition is no longer Narration.

A user equipment is provided in the embodiment of the present invention. As shown in FIG. 7, the user equipment includes:

The sending module 71 is configured to send a request message to the base station to request the base station to configure parameter information required for data transmission by the base station, when the user equipment to which the user equipment belongs needs to send data;

The receiving module 72 is configured to receive the parameter information sent by the base station, where the parameter information includes a probability that the base station configures, for the user equipment, the access degree randomly selected when accessing each resource block. An access degree distribution function and a first random number seed for generating an access degree, and a second random number seed and a coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block ;

The processing module 73 is configured to control, according to the parameter information, the sending module to randomly send data to be sent on the at least one resource block.

Optionally, the processing module 73 is specifically configured to:

For each resource block, according to the type value corresponding to the resource block and the coupling width, after determining that the transmission condition corresponding to the resource block is satisfied, according to the access degree distribution function and the first random number seed Generating the access degree d, from the sequence of modulation symbols corresponding to the data to be transmitted The d modulation symbols are randomly selected, and the transmitting module is controlled to transmit the selected d modulation symbols through the resource block.

As an optional implementation manner, the sending condition corresponding to the resource block is: an absolute value of a difference between a user number of the user equipment and a type value of the resource block is less than or equal to a coupling width configured by the base station. Wherein, the type value of the resource block ranges from [1-w, N+w], w represents the coupling width, and 0≤w<N, where N represents the number of user equipments.

As another optional implementation manner, the sending condition corresponding to the resource block is: an absolute value of a difference between a sequence number of the L-group modulation symbol sequence of the user equipment and a type value of the resource block is less than or A sequence of modulation symbols equal to a coupling width, wherein the value of the type value of the resource block ranges from [1-w, L+w], and w represents the coupling width.

Optionally, the receiving module 72 is further configured to: receive, by the base station, a number L of information bits configured for all user equipments;

The processing module 73 is specifically configured to: according to the number L of information bits configured by the base station, average the data to be sent of the user equipment into L shares, and separately encode and modulate the data to be sent by the L pieces, Obtaining a sequence of L sets of modulation symbols corresponding to the to-be-sent data;

Based on the same inventive concept, a base station is also provided in the embodiment of the present invention. The principle of the problem solved by the base station is similar to the data receiving method. Therefore, the implementation of the base station may refer to the implementation of the method, and details are not described herein again.

A base station provided by an embodiment of the present invention, as shown in FIG. 8, the base station includes:

The parameter configuration module 81 is configured to configure parameter information required for data transmission for the user equipment after receiving the request message sent by the user equipment;

The sending module 82 is configured to send the parameter information, where the parameter information includes a probability that the parameter configuration module configures, for the user equipment, a probability of randomly selecting an access degree when accessing each resource block. An access degree distribution function and a first random number seed for generating an access degree, And a second random number seed and a coupling width configured by the parameter configuration module for generating, by each user equipment, a type value corresponding to each resource block;

The processing module 83 is configured to perform demodulation and decoding processing on the data sent by the user equipment according to the parameter information, to obtain complete data sent by the user equipment.

Optionally, the processing module 83 is specifically configured to:

According to any of the foregoing embodiments, as an optional implementation manner, the sending condition corresponding to the resource block is: an absolute value of a difference between a user number of the user equipment and a type value of the resource block is less than or equal to The parameter configuration module configures a coupling width, wherein the value type of the resource block ranges from [1-w, N+w], w represents the coupling width, and N represents the number of user equipments; The processing module 83 is specifically configured to:

As another optional implementation manner, the sending condition corresponding to the resource block is: the user A sequence of modulation symbols in which the absolute value of the difference between the sequence number and the type value of the resource block is less than or equal to the coupling width in the L modulation symbol sequences of the device, wherein the value range of the resource block has a value range of [ 1-w, L+w], w represents the coupling width; the processing module 83 is specifically configured to:

Optionally, the parameter configuration module 81 is further configured to: configure a number L of information bits for all user equipments;

Based on any of the above embodiments, the parameter configuration module 81 is further configured to:

Based on the same inventive concept, the embodiment of the present invention further provides another user equipment. As shown in FIG. 9, the user equipment includes:

Transceiver 91, processor 92, communication interface 93, and system bus 94. among them:

The processor 92 and the communication interface 93 are connected by the system bus 94 and complete communication with each other. The processor 92 may be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention. . The communication interface 93 is used to interact with other communication devices.

When the user equipment is running, the transceiver 91 and the processor 92 may perform the method flow described in FIG.

The transceiver 91 is configured to send a request message to the base station to request the base station to configure parameter information required for data transmission by the base station, when the user equipment to which the user equipment belongs needs to send data; Receiving parameter information sent by the base station, where the parameter information includes an access degree distribution function configured by the base station for the user equipment to represent a probability of randomly selecting an access degree when accessing each resource block. And a first random number seed for generating an access degree, and a second random number seed and a coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block;

The processor 92 is configured to control, according to the parameter information, the transceiver 91 to randomly send data to be sent on at least one resource block.

Optionally, the processor 92 is specifically configured to:

For each resource block, according to the type value corresponding to the resource block and the coupling width, after determining that the transmission condition corresponding to the resource block is satisfied, according to the access degree distribution function and the first random number seed Generating the access degree d, randomly selecting d modulation symbols from the modulation symbol sequence corresponding to the data to be transmitted, and controlling the transceiver 91 to transmit the selected d modulation symbols through the resource block.

Optionally, the transceiver 91 is further configured to: receive, by the base station, a number L of information bits configured for all user equipments;

The processor 92 is specifically configured to divide the data to be sent of the user equipment into L shares according to the number L of information bits configured by the base station, and separately edit the data to be sent by the L parts. a code and a modulation process to obtain a sequence of L sets of modulation symbols corresponding to the data to be transmitted;

Based on the same inventive concept, another base station is further provided in the embodiment of the present invention. As shown in FIG. 10, the base station includes:

The transceiver 101, the processor 102, the communication interface 103, and the system bus 104. among them:

The processor 102 and the communication interface 103 are connected by the system bus 104 and complete communication with each other. The processor 102 can be a central processing unit (CPU), or an application specific integrated circuit (ASIC), or one or more integrated circuits configured to implement the embodiments of the present invention. . The communication interface 103 is used to interact with other communication devices.

When the base station is running, the transceiver 101 and the processor 102 can perform the method flow described in FIG. 2, specifically including:

The processor 102 is configured to: after the transceiver 101 receives the request message sent by the user equipment, configure parameter information required for data transmission for the user equipment;

The transceiver 101 is configured to: send the parameter information, where the parameter information includes the access degree configured by the processor 102 for the user equipment to characterize random access when accessing each resource block. a probability access distribution function and a first random number seed for generating an access degree, and a second random number seed configured by the processor 102 for all user equipments to generate a type value corresponding to each resource block And coupling width;

The processor 102 is configured to: perform demodulation and decoding processing on the data sent by the received user equipment according to the parameter information, to obtain complete data sent by the user equipment.

Optionally, the processor 102 is specifically configured to:

According to any of the foregoing embodiments, as an optional implementation manner, the sending condition corresponding to the resource block is: an absolute value of a difference between a user number of the user equipment and a type value of the resource block is less than or equal to a coupling width configured by the processor 102, wherein a value range of the type of the resource block is [1-w, N+w], w represents the coupling width, and N represents the number of user equipments; The processor 102 is specifically configured to:

As another optional implementation manner, the sending condition corresponding to the resource block is: an absolute value of a difference between a sequence number of the L modulation symbol sequences of the user equipment and a type value of the resource block is less than or a sequence of modulation symbols equal to a coupling width, wherein a value range of the type of the resource block is [1-w, L+w], and w represents the coupling width; the processor 102 is specifically configured to:

Optionally, the processor 102 is further configured to: configure a number L of information bits for all user equipments;

The parameter information further includes: a number L of information bit blocks configured by the processor 102 for all user equipments.

Based on any of the above embodiments, the processor 102 is further configured to:

Based on the same inventive concept, an embodiment of the present invention further provides a communication system. As shown in FIG. 11, the system includes:

The user equipment 111 is configured to send a request message to the base station to request the base station to configure parameter information required for data transmission by the base station, and receive parameter information sent by the base station; Parameter information, randomly sending data to be sent on at least one resource block;

The base station 112 is configured to: after receiving the request message sent by the user equipment, configure parameter information required for data transmission for the user equipment; send the parameter information; and receive the user equipment according to the parameter information. The transmitted data is subjected to demodulation and decoding processing to obtain complete data sent by the user equipment;

The parameter information includes an access degree distribution function configured by the base station for the user equipment to characterize a probability of randomly selecting an access degree when accessing each resource block, and a method for generating an access degree. a random number seed, and a second random number seed and coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block.

It should be noted that the user equipment 111 in the communication system may be the user equipment shown in FIG. 7 or the user equipment shown in FIG. 9; the base station 112 in the communication system may be the base station shown in FIG. It is the base station shown in FIG.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention may be employed in one or more A computer program product embodied on a computer usable storage medium (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

While the preferred embodiment of the invention has been described, it will be understood that Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and the modifications and

It is apparent that those skilled in the art can make various modifications and variations to the invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention cover the modifications and modifications of the invention

Claims

A data transmitting method, characterized in that the method comprises:

When the user equipment determines that it needs to send data, it sends a request message to the base station to request the base station to configure parameter information required for data transmission of the user equipment.

The user equipment receives the parameter information sent by the base station, where the parameter information includes a probability that the base station configures, for the user equipment, a probability of randomly selecting an access degree when accessing each resource block. And a first random number seed for generating an access degree, and a second random number seed and a coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block;

And the user equipment randomly sends the to-be-sent data on the at least one resource block according to the parameter information.
The method according to claim 1, wherein the user equipment randomly sends the data to be sent on the at least one resource block according to the parameter information, including:

Determining, by the user equipment, an algorithm for generating a type value of each resource block according to the second random number seed, and using the determined algorithm, generating a type value corresponding to each resource block;

For each resource block, the user equipment determines, according to the type value corresponding to the resource block and the coupling width, that the transmission degree corresponding to the resource block is satisfied, according to the access degree distribution function and the a random number seed is generated, the access degree d is generated, d modulation symbols are randomly selected from the modulation symbol sequence corresponding to the data to be transmitted, and the selected d modulation symbols are transmitted through the resource block.
The method according to claim 1 or 2, wherein the resource block corresponds to a transmission condition that an absolute value of a difference between a user number of the user equipment and a type value of the resource block is less than or equal to The coupling width of the base station configuration, where the type value of the resource block ranges from [1-w, N+w], w represents the coupling width, and 0≤w<N, where N represents the number of user equipments. .
The method according to claim 1 or 2, wherein the transmission condition corresponding to the resource block is: a sequence number and a resource block in the L group modulation symbol sequence of the user equipment The absolute value of the difference value of the type value is less than or equal to the modulation symbol sequence of the coupling width, wherein the type value of the resource block has a value range of [1-w, L+w], and w represents the coupling width.
The method according to claim 4, wherein after the user equipment sends the request message to the base station, the method further includes:

Receiving, by the user equipment, the number of information bit blocks L configured by the base station for all user equipments; the user equipment divides the data to be sent of the user equipment into L according to the number L of information bits configured by the base station. And respectively, the L pieces of data to be transmitted are separately encoded and modulated to obtain a sequence of L sets of modulation symbols corresponding to the data to be transmitted;

For each resource block, the user equipment randomly selects d modulations from the modulation symbol sequence after determining that the transmission condition corresponding to the resource block is satisfied according to the type value corresponding to the resource block and the coupling width. Symbols, including:

For each resource block, the user equipment determines, according to the type value corresponding to the resource block and the coupling width, a modulation symbol sequence that satisfies a transmission condition corresponding to the resource block, and is determined from the determined modulation symbol sequence. Randomly select d modulation symbols.
A data receiving method, characterized in that the method comprises:

After receiving the request message sent by the user equipment, the base station configures parameter information required for data transmission for the user equipment;

The base station sends the parameter information, where the parameter information includes an access degree distribution function configured by the base station for the user equipment to characterize a probability of randomly selecting an access degree when accessing each resource block. And a first random number seed for generating an access degree, and a second random number seed and a coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block;

The base station demodulates and decodes the data sent by the received user equipment according to the parameter information, to obtain complete data sent by the user equipment.
The method according to claim 6, wherein the base station demodulates and decodes the data sent by the user equipment according to the parameter information, and obtains complete data sent by the user equipment, including :

Determining, by the base station, an algorithm for generating a type value of each resource block according to the second random number seed, and using the determined algorithm, generating a type value corresponding to each resource block;

For each resource block, the base station determines, according to the type value corresponding to the resource and the coupling width, the user equipment on the resource block that satisfies the sending condition corresponding to the resource block, and according to the sending condition The access degree distribution function and the first random number seed of the probability of the access degree of the user equipment, the access degree d is generated, and each user equipment that satisfies the sending condition is determined from the demodulated data sequence a bit sequence of d bits transmitted on the resource block and its relationship with a complete bit sequence transmitted by the user equipment;

And the base station according to a relationship between a bit sequence of d bits transmitted by the user equipment that satisfies the sending condition on the resource block on the resource block and a complete bit sequence sent by the user equipment, The bit sequence corresponding to the user equipment that satisfies the sending condition on the resource block performs decoding processing to obtain complete data sent by the user equipment.
The method according to claim 6 or 7, wherein the resource block corresponds to a transmission condition that an absolute value of a difference between a user number of the user equipment and a type value of the resource block is less than or equal to The coupling width of the base station configuration, where the type value of the resource block ranges from [1-w, N+w], w represents the coupling width, and N represents the number of user equipments;

The base station determines, from the demodulated data sequence, a relationship between a bit sequence of d bits transmitted by the user equipment that satisfies the sending condition on the resource block and a complete bit sequence sent by the user equipment: The position of the bit sequence of d bits transmitted by the user equipment on the resource block in a complete bit sequence transmitted by the user equipment.
The method according to claim 6 or 7, wherein the transmission condition corresponding to the resource block is: a difference between a sequence number of the L modulation symbol sequences of the user equipment and a type value of the resource block a sequence of modulation symbols whose absolute value is less than or equal to a coupling width, wherein a value range of the type value of the resource block is [1-w, L+w], and w represents the coupling width;

The base station determines, from the demodulated data sequence, a relationship between a bit sequence of d bits transmitted by the user equipment that satisfies the sending condition on the resource block and a complete bit sequence sent by the user equipment: The bit sequence of d bits transmitted by the user equipment on the resource block is used The absolute value of the difference between the sequence number transmitted by the user equipment and the type value of the resource block is less than or equal to the position in the bit sequence corresponding to the modulation symbol sequence of the coupling width.
The method according to claim 9, wherein the parameter information further comprises: a number L of information bit blocks configured by the base station for all user equipments.
The method of claim 6 further comprising:

The base station reconfigures part or all of the parameter information when determining that the number of the user equipment changes.
A user equipment, the user equipment comprising:

a sending module, configured to send a request message to the base station to request the base station to configure parameter information required for data transmission by the base station, when the user equipment to which the user equipment belongs needs to send data;

a receiving module, configured to receive parameter information sent by the base station, where the parameter information includes a probability that the base station configures, for the user equipment, a probability of randomly selecting an access degree when accessing each resource block. An access degree distribution function and a first random number seed for generating an access degree, and a second random number seed and a coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block;

And a processing module, configured to control, according to the parameter information, the sending module to randomly send the to-be-sent data on the at least one resource block.
The user equipment according to claim 12, wherein the processing module is specifically configured to:

Determining, according to the second random number seed, an algorithm for generating a type value of each resource block, and using the determined algorithm, generating a type value corresponding to each resource block;

For each resource block, according to the type value corresponding to the resource block and the coupling width, after determining that the transmission condition corresponding to the resource block is satisfied, according to the access degree distribution function and the first random number seed And generating the access degree d, randomly selecting d modulation symbols from the modulation symbol sequence corresponding to the data to be transmitted, and controlling the sending module to send the selected d modulation symbols by using the resource block.
User equipment according to claim 12 or 13, wherein said resource block pair The transmission condition is that the absolute value of the difference between the user number of the user equipment and the type value of the resource block is less than or equal to the coupling width configured by the base station, where the value of the type value of the resource block is The range is [1-w, N+w], w represents the coupling width, 0≤w<N, and N represents the number of user equipments.
The user equipment according to claim 12 or 13, wherein the transmission condition corresponding to the resource block is: a difference between a sequence number of the L-group modulation symbol sequence of the user equipment and a type value of the resource block The absolute value of the value is less than or equal to the modulation symbol sequence of the coupling width, wherein the type value of the resource block has a value range of [1-w, L+w], and w represents the coupling width.
The user equipment according to claim 15, wherein the receiving module is further configured to: receive a number L of information bit blocks configured by the base station for all user equipments;

The processing module is specifically configured to: according to the number L of information bits configured by the base station, divide the data to be sent of the user equipment into L shares, and separately encode and modulate the data to be sent by the L pieces, a sequence of L sets of modulation symbols corresponding to the data to be transmitted;

For each resource block, determining, according to the type value corresponding to the resource block and the coupling width, a modulation symbol sequence that satisfies a transmission condition corresponding to the resource block, and randomly selecting d from the determined modulation symbol sequence. Modulation symbol.
A base station, characterized in that the base station comprises:

a parameter configuration module, configured to: after receiving the request message sent by the user equipment, configure parameter information required for data transmission by the user equipment;

a sending module, configured to send the parameter information, where the parameter information includes a probability that the parameter configuration module configures, for the user equipment, a probability of randomly selecting an access degree when accessing each resource block And a first random number seed for generating an access degree, and a second random number seed and a coupling width configured by the parameter configuration module for generating a type value corresponding to each resource block configured by all user equipments ;

The processing module is configured to perform demodulation and decoding processing on the data sent by the received user equipment according to the parameter information, to obtain complete data sent by the user equipment.
The base station according to claim 17, wherein the processing module is specifically configured to:

Determining, according to the second random number seed, an algorithm for generating a type value of each resource block, and using the determined algorithm, generating a type value corresponding to each resource block;

Determining, according to the type value corresponding to the resource and the coupling width, the user equipment on the resource block that meets the sending condition corresponding to the resource block, and according to the user equipment that meets the sending condition, The access degree distribution function of the probability of access degree and the first random number seed, generating the access degree d, and determining, from the demodulated data sequence, each user equipment that satisfies the transmission condition a bit sequence of d bits transmitted on the resource block and its relationship with the complete bit sequence transmitted by the user equipment;

Determining, for each of the resource blocks, a bit sequence of d bits transmitted by the user equipment that satisfies the transmission condition on each of the resource blocks on the resource block and a relationship with a complete bit sequence sent by the user equipment The bit sequence corresponding to the user equipment that satisfies the transmission condition is subjected to decoding processing to obtain complete data sent by the user equipment.
The base station according to claim 17 or 18, wherein the resource block corresponds to a transmission condition that an absolute value of a difference between a user number of the user equipment and a type value of the resource block is less than or equal to a coupling width configured by the parameter configuration module, wherein the value range of the resource block ranges from [1-w, N+w], w represents the coupling width, and N represents the number of user equipments; The module is specifically used to:

Determining, from the demodulated data sequence, a relationship between a bit sequence of d bits transmitted by the user equipment that satisfies the transmission condition on the resource block and a complete bit sequence sent by the user equipment: the user equipment The position of the bit sequence of d bits transmitted on the resource block in the complete bit sequence transmitted by the user equipment.
The base station according to claim 17 or 18, wherein the transmission condition corresponding to the resource block is: a difference between a sequence number of the L modulation symbol sequences of the user equipment and a type value of the resource block a sequence of modulation symbols whose absolute value is less than or equal to the coupling width, wherein the value range of the resource block has a value range of [1-w, L+w], and w represents the coupling width; to:

Determining, from the demodulated data sequence, each user equipment that satisfies the transmission condition is in the The relationship between the bit sequence of the d bit transmitted on the resource block and the complete bit sequence sent by the user equipment is: the sequence number of the bit sequence of the d bit transmitted by the user equipment on the resource block at the user equipment and The absolute value of the difference of the type values of the resource blocks is less than or equal to the position in the bit sequence corresponding to the modulation symbol sequence of the coupling width.
The base station according to claim 20, wherein the parameter configuration module is further configured to: a number L of information bits configured for all user equipments;

The parameter information further includes: a number L of information bit blocks configured by the parameter configuration module for all user equipments.
The base station according to claim 17, wherein the parameter configuration module is further configured to:

When it is determined that the number of user devices changes, some or all of the parameter information is reconfigured.
A communication system, characterized in that the system comprises:

The user equipment is configured to send a request message to the base station to request the base station to configure parameter information required for data transmission by the base station, and receive parameter information sent by the base station according to the parameter. Information, randomly sending data to be sent on at least one resource block;

a base station, configured to: after receiving the request message sent by the user equipment, configure parameter information required for data transmission for the user equipment; send the parameter information; send, according to the parameter information, the received user equipment Demodulating and decoding the data to obtain complete data sent by the user equipment;

The parameter information includes an access degree distribution function configured by the base station for the user equipment to characterize a probability of randomly selecting an access degree when accessing each resource block, and a method for generating an access degree. a random number seed, and a second random number seed and coupling width configured by the base station for all user equipments to generate a type value corresponding to each resource block.