WO2009103231A1 - Limiting speed method, apparatus and system of reverse level user - Google Patents

Abstract

A limiting speed method, an apparatus and a system of a reverse level user are provided. The limiting speed method includes: obtaining the limiting package length of a reverse data package corresponding to a maximal sending speed rate of the reverse data package of the reverse level user; setting a power gain parameter of a service channel relative to a pilot channel, the value of the power gain parameter being made to be the minimum of the power gain resource of the service channel relative to the pilot channel used necessarily by the system when demodulating the reverse data package with the limiting package length; sending the set power gain parameter information down to the corresponding reverse level user, the parameter information being used for indicating that the reverse level user reverses the data package according to the configure of the parameter information and sends it. The limiting speed method, the apparatus and the system all implement the limiting speed of the reverse level user and embody in the differences and the priorities among the reverse level users so as to facilitate to satisfy the different requests of different users and to supply the QoS project of the level charge for a network operator.

Description

 Method, device and system for speed limit of reverse level users This application claims to be filed on February 19, 2008 with the Chinese Patent Office, application number 2008100578 47.8, and the invention titled "restriction rate method, device and system for reverse level users" Priority of the Chinese Patent Application, the entire contents of which is incorporated herein by reference. Technical field

 Embodiments of the present invention relate to the field of wireless communications, and in particular, to a speed limit method, apparatus, and system for a reverse level user. Background technique

At present, the processing method of the traffic channel relative to the pilot channel in the wireless communication system (Traffi c Channel to Pilot Channel transmit power ratio, referred to as T2P) is Code Division Multiplex Access (CDMA). 2000 lx only supports the Reverse Traffic Channel Medium Access Control (RTC MAC) subtype of the reverse traffic channel (Evolution Data Only, EV-DO). The core processing method. In the Rev A (RevA) system of CDMA 2000 EV-D0 (referred to as D0A system), the concept of stream (f low) is introduced, because different streams have different levels and different quality of service (Quality of Service, Abbreviation: QoS) requirements, so the prior art uses a leaky bucket processing method to schedule flows, each stream has a storage unit similar to a leaky bucket to store resources. 1 is a schematic diagram of a prior art power gain processing method. As shown in Figure 1, T2PInflow indicates that the T2P resource injected into the leaky bucket storage unit is the currently available T2P resource; PotentialT2P0utflow is the potential T2P resource that can be used in the current subframe; and T2P0utflow represents the true outflow after the evaluation process. The T2P resource, that is, the T2P resource actually allocated to the user; BucketLevel indicates the leak The current state of the bucket, that is, the amount of T2P resources currently accumulated by the leaky bucket. BucketLeve l Sa t indicates the maximum amount of T2P resources that the leaky bucket can accommodate. The T2P processing method schedules each stream by continuously updating the leaky bucket.

 It can be seen from FIG. 1 that a high-level stream has more T2P resources, can be scheduled faster, can occupy more bytes in a physical layer packet, and can improve the level of the entire physical layer packet, thereby更高 Use a higher T2P to send, so the corresponding hybrid automatic retransmission (Hybr id Automa tic Rep ea t Reques t; abbreviation: HARQ) is less frequent and the delay is smaller. To put it simply, the T2P processing method implements reverse rate scheduling, which determines the packet length that the current subframe should send, the transmission mode of the transmitted packet, and the power of the packet. This processing method enables QoS within the user (i ntra-user).

 However, the existing T2P processing method cannot implement the speed limit of different reverse level users in the reverse direction. In the mechanism of the reverse level user, the reverse users can be set to different levels according to the user's needs (i.e., different levels of reverse level users are formed), and system resources are allocated according to the reverse user level. The system resources that can be enjoyed by the reverse channel construction and the reverse user level at which the reverse packets are sent will be different. This mechanism places more emphasis on the priority between reverse users. The existing T2P processing methods are based on the principle of efficiency and fairness. The parameter configuration is to achieve different priorities of different flows within the reverse user, and does not consider the priority between reverse users. There are different user requirements between different reverse users, and the reverse level user mechanism set to meet the different needs of the reverse users emphasizes the priority between the reverse users. Therefore, the simple use of the T2P processing method in the prior art cannot achieve the speed limit problem of the level user under the reverse level user mechanism. Summary of the invention

 The technical problem to be solved by the embodiments of the present invention is: embodying the priority between different reverse users, so that different levels of reverse users enjoy different reverse data packet maximum transmission rates.

In order to solve the above technical problem, the first aspect of the present invention provides a reverse level. The speed limit method of the household, including:

 Obtaining a limit of a reverse packet corresponding to a maximum transmission rate of a reverse-level user reverse packet;

 Setting a power gain parameter of the traffic channel relative to the pilot channel, such that the value of the power gain parameter is used to demodulate the power channel of the traffic channel relative to the pilot channel when the reverse packet having the restricted packet length is demodulated Minimum value

 The power gain parameter information is sent to the corresponding reverse level user, and the power gain parameter information is used to instruct the reverse level user to construct and send the reverse data packet according to the power gain parameter information.

 In the speed limit method of the reverse level user in the first aspect of the present invention, the limit packet length of the reverse data packet corresponding to the maximum transmission rate of the reverse level user reverse data packet of the preset different level is obtained, and the corresponding packet length is modified. The power channel parameter of the traffic channel relative to the pilot channel (abbreviation: T2P parameter), so that the power channel resource (referred to as: T2P resource) of the traffic channel available to the system corresponding to the reverse data packet is equal to, The minimum value of the T2P resource that the system needs to use when adjusting the reverse packet with the packet length. Since the T2P resources available to the corresponding system when the reverse level users of different levels are sent are restricted, the limit packet length of the reverse level packets sent by the users of different levels of reverse level is implemented; the reverse data packet is sent by the restriction. The limit packet length is implemented to limit the maximum transmission rate of reverse packets available to users of different levels of reverse level, that is, the speed limit of the reverse level user is realized, thereby reflecting the difference between the reverse level users and Priority, which is convenient to meet the different needs of different users; In addition, it can provide network operators with tiered charging QoS solutions to improve operational revenue.

 In order to solve the above technical problem, the second aspect of the present invention provides a speed limit device for a reverse level user, including:

 a first acquiring module, configured to acquire a restricted packet length of the reverse data packet corresponding to a maximum transmission rate of the reverse level user reverse data packet;

a setting module, configured to set a power gain parameter of the traffic channel relative to the pilot channel, to enable power The value of the gain parameter is the minimum value of the power gain resource of the traffic channel relative to the pilot channel that the system needs to use when demodulating the reverse packet having the restricted packet length;

 a sending module, configured to send the set of the power gain parameter information to a corresponding reverse level user, where the power gain parameter information is used to instruct the reverse level user to construct a reverse data packet according to the power gain parameter information And send.

 In the speed limit device of the reverse level user of the second aspect of the present invention, the first acquisition module acquires a restriction packet of a reverse data packet corresponding to a maximum transmission rate of a reverse level user reverse data packet of a preset different level. Long, the setting module adjusts the corresponding T2P parameters, and limits the T2P resources available to the system to be equal to the minimum value of the T 2P resources that the system needs to use when demodulating the reverse packets with the restricted packet length. The maximum packet length of the reverse packet sent by the user, which limits the maximum transmission rate of reverse packets available to users of different levels of reverse level by limiting the maximum packet length of the reverse packet, thereby realizing the reverse level user. The speed limit reflects the difference and priority between users in the reverse level, which is convenient to meet the different needs of different users. In addition, it can provide network operators with tiered charging QoS solutions to improve operational revenue.

 In order to solve the above technical problem, the third aspect of the present invention provides a rate limiting system for a reverse level user, including a base station and an access terminal, where:

 The base station is configured to obtain a restricted packet length of a reverse data packet corresponding to a maximum transmission rate of a reverse level user reverse data packet; set a power gain parameter of the traffic channel relative to the pilot channel, so that a value of the power gain parameter is a solution Adjusting the minimum value of the power channel resource of the traffic channel relative to the pilot channel used by the system when the reverse packet with the packet length is adjusted; and connecting the set power gain parameter information to the corresponding reverse level user Delivered to the terminal;

 The access terminal is configured to receive power gain parameter information from the base station, construct a reverse data packet according to the power gain parameter information, and send the data packet.

In the rate limiting system of the reverse level user in the third aspect of the present invention, the base station obtains the reverse data packet corresponding to the maximum transmission rate of the reverse level user reverse data packet of the preset different levels. Limit the packet length and modify the corresponding T2P parameters so that the T2P resource available to the system corresponding to the reverse packet is equal to the minimum value of the T2P resource that the system needs to use when demodulating the reverse packet with the restricted packet length. When the access terminals of different reverse level users perform group reverse data packets according to the modified T2P parameters and transmit, the T2P resources available to the corresponding system when the corresponding access terminal sends the reverse data packet are restricted. Limiting the maximum limit packet length of reverse-level users sent by different levels of reverse-level users, and limiting the maximum transmission rate of reverse packets available to users of different levels of reverse-level users by limiting the maximum limit packet length for sending reverse packets, The access terminals corresponding to different levels of reverse-level users have different reverse packet maximum transmission rates, realizing the speed limit of the reverse-level users, and reflecting the difference and priority between the reverse-level users; It can provide network operators with tiered charging QoS solutions to improve operational revenue. DRAWINGS

 1 is a schematic diagram of a prior art power gain processing method;

 2 is a flow chart of a first embodiment of a speed limit method for a reverse level user according to the present invention;

 3 is a flow chart of a second embodiment of a method for speed limit of a reverse level user according to the present invention;

 4 is a schematic structural diagram of an embodiment of a speed limiting device of a reverse level user according to the present invention;

 FIG. 5 is a schematic structural diagram of an embodiment of a speed limit system of a reverse level user according to the present invention. detailed description

 The technical solutions of the embodiments of the present invention are further described in detail below with reference to the accompanying drawings and embodiments.

The embodiment of the present invention is based on the RTC MAC Sub type 3 protocol of the Rev. A ( RevA) system of CDMA ² 000 EV-D0 (referred to as D OA system for short), and uses the T2P algorithm to limit the reverse level users of different levels to send the reverse. The maximum packet length of the packet is such that the rate control of the reverse class user to send the reverse packet is achieved.

First, two sets of correspondences related to the theoretical basis of the embodiment of the present invention, that is, Table 1 and Table 2 will be described. Table 1 shows the reverse traffic channel rate and payload table. The transmission rate of the reverse packet is determined by the packet length of the reverse packet and the termination subpacket of the demodulated reverse packet. The first, second, third or fourth sub-packets of the present invention demodulate the reverse data packets when corresponding to the first, first, third or fourth sub-frames in Table 1, respectively. As shown in Table 1, after the packet length of the reverse data packet that the access terminal (Aces s Point; abbreviation: AT) needs to transmit is determined, there are four possibilities for the reverse data packet to be demodulated to correspond to the terminating sub-packet. The terminating sub-packet is the value of the corresponding sub-packet when the reverse data packet is successfully demodulated; the current sending rate of the reverse data packet corresponds to four possible values.

 For example: When the static data length of the reverse data packet sent by the access terminal is 12256b it, and the static load length plus the default 32bi t redundancy information, the actual corresponding packet length is 12288bi t, namely: The current reverse packet needs to be sent in the packet length of 12288b it format. In the current reverse packet transmission process, when the reverse packet is successfully demodulated in the first sub-packet, the corresponding reverse transmission rate is 184 3. 2 kbps; the reverse packet is successfully demodulated in the second sub-packet. The corresponding reverse transmission rate is 921.6 kbps; when the reverse packet is successfully demodulated in the third sub-packet, the corresponding reverse transmission rate is 614. 4k bps; the reverse data packet is in the 4th sub-package. When the demodulation is successful, the corresponding reverse transmission rate is 460. 8kbp s. According to this method, the correspondence between the packet length of the reverse packet and the transmission rate can be obtained by looking up Table 1. The calculation value method of Table 1 is common knowledge in the art, and will not be described herein.

 Reverse traffic channel rate and payload table

2017 3040 460. 8 230. 4 153. 6 115. 2

 3041 4064 614. 4 307. 2 204. 8 153. 6

4065 6112 921. 6 460. 8 307. 2 230. 4

6113 8160 1228. 8 614. 4 409. 6 307. 2

8161 12256 1843. 2 921. 6 614. 4 460. 8 In the RTC MAC Sub type 3 protocol, it is usually impossible to precisely control the value of the terminating sub-packet corresponding to the reverse packet, ie: Unable to accurately control the success of the first sub-packet The reverse packet is demodulated; the packet length of the reverse packet can be calculated by the T2P algorithm. Therefore, the key to achieving the rate of transmission of reverse-level user reverse packets is to limit the maximum packet length that reverse-level users can send. When the packet length allowed by the reverse level user is limited, the maximum transmission rate of the corresponding reverse data packet can be limited. The maximum transmission rate is: the actual packet length of the reverse data packet is in the first sub- The transmission rate that the packet has when it is successfully demodulated.

 By querying the table 1, the limit packet length of the reverse packet corresponding to the corresponding rate limit of the different reverse level users can be obtained. Next, you need to obtain the T2P resources that the system needs to use when sending reverse packets with different levels of reverse packets. As mentioned above, each reverse flow maintains a leaky bucket mechanism of T2P resources. The more T2P resources available in the leaky bucket, the larger the packet length of the reverse data packets that the system can send. In order to make the packet length of the reverse data packet sent by different levels of reverse level users not exceed the preset limit packet length, it is necessary to obtain the minimum T2P resource required by the system when demodulating the reverse data packet with the restricted packet length. value. When the T2P resource actually available to the system is less than or equal to the minimum value of the T2P resource, the allowed packet length of the reverse data packet sent by the reverse level user will not exceed the preset limit packet length, thereby limiting the reverse data packet. The purpose of the package is long.

 In the RTC MAC Sub type 3 protocol, the transmission mode of the general reverse data packet is as follows: High capacity (H i gh Capac ty, referred to as H iCap ) mode and low latency ( Low La tency, referred to as: LoLa t Mode, different transmission modes When demodulating reverse packets for different sub-packets, the system needs to use different T2P resources. In the H iCap mode, the reverse packet is demodulated. The T2P resource used by the system is small. In the LoLa t mode, the reverse packet is demodulated. The T2P resource used by the system is large.

In addition, in the RTC MAC Sub type 3 protocol, in H iCap mode, the system demodulates reverse packets. When the default value of the T2P resource used by the system is the same under each sub-package, that is, when the first, first, third or fourth termination sub-packets demodulate the same reverse data packet, the T2P resources required by the system are the same. Therefore, for the H iCap mode, if the system demodulates the reverse data packet, the default value of the T2P resource used by the system under each sub-packet is the same, and when demodulating the reverse data packet with the restricted packet length, the system needs The minimum value of the T2P resource can be: The first, 2, 3, or 4 sub-packets demodulate the T2P resources required by the system when the reverse packet with the packet length is limited; if the system demodulates the reverse packet in each sub-packet The value of the T2P resource used by the sub-system is different. When the fourth sub-packet demodulates the reverse packet with the packet length, the T2P resource required by the system is the smallest. Table 2 shows the packet length, transmission rate, and T2P resource correspondence of the reverse data packet in the H iCap mode. By querying Table 2, the packet length of the reverse packet can be obtained and the T2P resource used by the system when the 4th packet demodulates the reverse packet.

 Table 2 Reverse packet length, transmission rate, and T2P resource correspondence required by the system in H iCap mode

In LoLa t mode, when the system demodulates the reverse data packet, the default value of the 所需 2 Ρ resource used by the system is different under each sub-package. When the sub-packet before the conversion point demodulates the reverse data packet, the system needs When the Ρ2 Ρ resource is larger than the sub-packet demodulation reverse packet after the conversion point, the system needs Τ2Ρ resources. one of them The conversion point refers to the transmission in which the T2P changes after the system sends the reverse packet. Under the protocol default, the conversion point of LoLat mode is 2, that is: when the first 2 sub-packets demodulate the reverse data packet, the system needs more T2P resources than the last 2 sub-packets to demodulate the reverse data packet. Required T2P resources. Among the 4 terminating sub-packets, the 4th terminating sub-packet requires the smallest T2P resource for demodulating the reverse data packet. Therefore, when demodulating a reverse packet with a restricted packet length in the L oLa t mode, the minimum value of the T2P resource required by the system is: when the fourth sub-packet demodulates the reverse packet with the packet length limited, the system The T2P resources to be used.

 Next, an embodiment of the present invention will be described in detail. The first aspect of the present invention provides a speed limiting method for a reverse level user.

 In a D0A system, an access terminal can support different streams for reverse transmission. For example, the service class is divided into three levels according to the service type: the fast forwarding service (abbreviation: EF flow), the guaranteed forwarding service (abbreviation: AF flow), and the forwarding service (abbreviation: BE flow). Among them, different streams have different system parameter requirements in reverse transmission. For example, the EF stream has low bandwidth requirements, but has high requirements on parameters such as delay and jitter; the AF stream needs to have bandwidth guarantee; the BE stream has a lower level and the system parameters are lower.

 2 is a flow chart of a first embodiment of a method for speed limiting of a reverse level user according to the present invention. In this embodiment, the rate limit of the BE flow of the reverse level user is taken as an example to describe the technical solution of the embodiment of the present invention. The application scenario of this embodiment may be: The operator does not want the speed limit of the reverse-level user to affect the service corresponding to the EF flow and the AF flow. In this case, only the BE flow can be limited, instead of the EF flow, AF. The flow performs the transmission rate control of the reverse packet.

 The power gain parameter of the modified traffic channel relative to the pilot channel in this embodiment (referred to as: T

The 2P parameter is: the maximum value of the power gain resource that each sub-package of the system can add (referred to as: T2 PInf l owMax parameter), which indicates that the reverse data packet is demodulated in the first, second, third or fourth sub-packet. The maximum amount of T2P resources that the system can increase. The transmission mode of the reverse packet of the BE stream is H iCap mode. As shown in FIG. 2, this embodiment includes:

Step 1 1. According to the level of the reverse level user, set the maximum transmission rate of the reverse data packet allowed by the reverse level user of each level; Step 12: Obtain the limit packet length corresponding to the preset maximum transmission rate by using the lookup table 1; Step 13. Obtain the H iCap mode by using the lookup table 2, and when the reverse packet with the limit packet length is in the 4th sub The T2P resources that the system needs to use when demodulating packets;

 Step 14: Modify the T2PInf lowMax parameter, so that the T2PInf lowM ax of the corresponding level user BE stream is equal to the T2P resource used by the system queried in step 13, that is, the value of the T2PInf lowMax parameter is equal to the reverse data packet with the restricted packet length. 4 sub-packets are demodulated, the T 2 P resources required by the system;

 In practical applications, the present invention sets the value of the T2PInf lowMax parameter to demodulate a reverse data packet having a restricted packet length, while ensuring that the maximum packet length of the reverse reverse data allowed by the user of different reverse levels does not exceed the limit packet length. The minimum value of the T2P resource that the system needs to use in each terminating sub-packet may specifically require the minimum value of the T2P resource to be used.

 Step 15: The modified T2PInf lowMax parameter information is sent to the corresponding reverse level user, and the corresponding reverse level user is instructed to send the reverse data packet according to the parameter information group.

 In this embodiment, the maximum packet sending rate of the corresponding BE stream reverse packet is set according to different levels of the reverse level user, and the restricted packet length of the reverse packet of the BE stream corresponding to the maximum sending rate is obtained, and the corresponding T2PInf is modified. The owMax parameter, such that the value of the T2PInf lowMax parameter is equal to that in the H iCap mode, demodulates the T2P resource that the system needs to use when the reverse packet with the packet length is limited to the fourth subpacket. Since the T2P resources available to the corresponding system when the reverse-level users of different levels are transmitted are restricted, the limit packet length of the reverse-level users transmitting the BE stream reverse packets is restricted, and the restriction is transmitted by the restriction. The limit packet length of the BE stream reverse packet is implemented, and the maximum transmission rate of the reverse packet obtainable by the reverse level user of different levels is realized, that is, the speed limit of the reverse level user of the BE stream is realized, which embodies the implementation of the BE. In the case of services, the differences and priorities between users of the reverse level are convenient to meet the different needs of different users. In addition, the Qo S solution capable of providing level charging for network operators can improve operational revenue.

The following steps are discussed in the present embodiment to achieve different levels of reverse level user speed limit. Principle:

 According to Section 10.11.6.1.6.1.1.1 of the RTC MAC Sub type 3 protocol, a reverse packet is sent in a certain packet length format, and the conditions for selecting six packet lengths must be met at the same time. If any of the six conditions for selecting the packet length is not satisfied, the reverse packet cannot be sent in the packet length format. Therefore, it is only necessary to limit one of the six conditions for selecting the packet length to achieve the purpose of limiting the packet length. After the packet length is limited, the maximum transmission rate of the reverse data packet is also limited, and the rate limit of the reverse level user in this embodiment can be implemented.

 The BE stream uses the HiCap mode for reverse transmission. This embodiment limits the condition 2 for selecting the packet length specified in Section 10.11.6.1.6.1.1.1 of the RTC MAC Subtype3 protocol. Select the condition 2 of the packet length, that is, the formula (1) is as follows:

10 ^A (TxT2PHiCapNomin alPS/10) <

Max(10 ^Λ (ΤχΤ2Ρ min/10), ^ ie F(PotentialT 2POutf ow _{t HC} ))

Considering the influence of the auxiliary pilot channel (Auxiliary Pilotgain), if the packet length of the reverse dedicated line user is greater than or equal to the preset minimum packet length of the auxiliary pilot channel (AuxiliaryP ilotChannelMinPayload), the Bayer J needs to correspond to the packet length. T2PHiCapPreTransition PS, T2PHiCapPostTransitionPS based on the power value AuxiliaryPilotgain coupled as the final T2PHiCapPreTransitionPS, T2PHiCapPos tTrans it ionPS ₀ in the variable named in the T2P HicapPreTransitonPS, T2P T2P indicate that the variable is a value, which is understood to be a power value; Hicap indicates HiEn mode; PreTransit ion indicates before the transition point; PS indicates the packet length. T2PHicapPreTransitonPS is connected: In HiCap mode, the packet length PS is T2P before the transition point. T2PHiCapPos tTransit ionPS represents the T2P of the packet length PS after the transition point in HiCap mode.

 In formula (1), when the packet length PS is less than or equal to the minimum packet length of the auxiliary pilot channel, it satisfies: PS < AuxiliaryPilotChannelMinPayload

TxT2PHiCapNo min alPS = max(T2PHicap Pr eTransitionPS, T2PHicapPostTransitionPS) When PS is greater than the minimum packet length of the auxiliary pilot channel, it satisfies: PS > AuxiliaryPilotChannelMinPayload

 TxT2PHiCapNo min alPS = max(T2PHicap Pr eTransitionPS, T2PHicapPostTransitionPS)

+ 10 l0g(l + 1 (^(A^PilotCh^nelGain/lO)) That is to say, TxT2PHiCapNominalPS is the maximum T2P resource that the system needs to use in the demodulation of 4 sub-packets of the reverse data packet. In this embodiment, The value of TxT2PHiCapNominalPS is the value of the T2PInflowmax parameter set in step 14. That is: the T2P resource that the system needs to use when the fourth sub-packet demodulates the reverse packet with the restricted packet length. Thus, the formula (1) To perform the conversion from the dB domain to the linear domain, we can get the formula (2):

T2PInflow max ≤ max(TxT2P min, ^ ie F(PotentialT2POutflow _{i HC} ))

TxT2Pmin represents the minimum T2P resource flowing out of the system. Since TxT2Pmin is usually set to a small value, equation (2) can be simplified to formula (3):

T2PInflow max ≤ ∑ ie F (PotentialT2POutflow _{; HC} ) According to the condition 5 of the selected packet length specified in section 10.11.6.1.6.1.1.1 of the RTC MAC Subtype3 protocol, formula (4), it can be seen that when the speed limit condition is reached, due to the data The source is sufficient, and the injection amount T2PInflow of the T2P resource injected into the leaky bucket is always equal to T2PInflowmax,

PotentialT2POutfloWi _HC max(0, min((l + AllocationStagger x rn) x (Bucketlevel; _n / 4 + T2PInfolw _in ), BucketFactor! (10 x log 10(T2PInflow _{1 n} ), F AB _n x T2PInflow _in )) 4), AllocationStagger is a constant between 0-1, rn is a random number between -1-1, the purpose of these two variables is to introduce some randomness to the algorithm. BucketLeveli, n, see Figure 1 As shown, the subscript i represents the i-th stream, and n represents the n-th sub-frame. T2PInflow i,n See also Figure 1, where the subscript i represents the i-th stream and n represents the n-th sub-frame. Bucke tFactori represents the BucketFactor function of the i-th stream, and the BucketFactor function takes a range of ² _ 6. Therefore, according to formula (4), formula (5) can be obtained:

PotentialT2POutflow _{i HC} > T2PInflow max Substituting the formula (5) into the formula ( ³ ), we can see that the inequality of the formula (3) is always true.

In this embodiment, by modifying the T2P parameter: T2PInflowmax, the value of T2PInf lolix ax is equal to In step 13, the T2P resource to be used by the system when the 4th sub-packet demodulates the reverse data packet with the restricted packet length. If the value of the actual T2PInf loxax is greater than the reverse packet obtained by the fourth sub-packet demodulation having the limit packet length obtained in step 13 of the embodiment, the T2P resource to be used by the system cannot be transformed into the formula (1). In the formula (2), the condition 2 for selecting the packet length, that is, the formula (1) is not established. Therefore, in this embodiment, by limiting the value of T2PInf lowmax, the packet length of the reverse packet can be limited; by limiting the packet length of the reverse packet, the maximum transmission rate of the reverse packet having the packet length is restricted.

 3 is a flow chart of a second embodiment of a method for speed limiting of a reverse level user according to the present invention. The application scenario of this embodiment may be: The operator needs to limit the maximum transmission rate of the reverse reverse data packets of different levels of reverse level users, and limit the BE flow, the EF flow, and the AF flow.

 The T2P parameter to be modified in this embodiment is: a power gain maximum function parameter of the transmitted traffic channel relative to the pilot channel (referred to as: TxT2Pmax At tr ibute parameter), the meaning of the parameter is: stipulate that the access terminal is different The maximum value of the power gain of the traffic channel transmitted under the pilot strength relative to the pilot channel (abbreviation: TxT2Pmax) is such that the packet length of the reverse data packet transmitted by the access terminal cannot exceed the packet length corresponding to TxT2Pmax. As shown in FIG. 3, this embodiment includes:

 Step 21: Set a maximum transmission rate of the reverse data packet allowed by the reverse level user of each level according to the level of the reverse level user;

 Step 22: Obtain the limit packet length corresponding to the preset maximum transmission rate by using the lookup table 1; Step 23, obtain the H iCap mode by using the lookup table 2, and when the reverse packet with the limit packet length is in the 4th sub The T2P resources that the system needs to use when demodulating packets;

Since the present embodiment includes the BE stream, the EF stream, and the AF stream, the transmission mode of the reverse packet includes the HiCap mode and the LoLat mode. Due to the demodulation of reverse packets in the HiCap mode, the T2P resources used by the system are small. In the LoLat mode, the reverse packet is demodulated. The T2P resources used by the system are large. Therefore, in the H iCap mode, the fourth When the sub-packet demodulation has a reverse packet that limits the packet length, the system needs to use the T2P resource as the minimum value of the T2P resource that the system needs to use when demodulating the reverse packet with the packet length. Of course, you can also get various kinds of current system support according to the actual situation. The minimum value of the T2P resource used.

 Step 24: Modify the TxT2Pmax At tribute parameter, and set the two TxT2PMax interpolation point ordinates of the parameter to be equal to: The HiCap mode queried in step 23, when the fourth sub-packet demodulates the reverse data packet with the restricted packet length, T2P resources to be used by the system;

 In practical applications, the value of the TxT2PMax) interpolation point ordinate can also be set to be slightly larger than the solution minimum value, while ensuring that the maximum packet length of the reverse reverse packet allowed by the user of different reverse levels does not exceed the limit packet length.

 In the RTC MAC Subtype3 protocol, the TxT2Pmax Attribute parameter defines the abscissa and ordinate of the two interpolation points of the TxT2Pmax function. The TxT2Pmax function can be calculated by the calculation method of the one-dimensional linear interpolation function specified in Section 14.1 of the RTC MAC Subtype3 protocol.

 Table 3 shows the default values for the TxT2Pmax Attribute parameter. In Table 3, NumPi lotStrengthAx isValues is the pilot strength coordinate point of 2; TxT2Pmax Attribute parameter means: When the pilot strength PilotStrengthAxisO is -10dB, the value of TxT2Pma X that can be obtained under the pilot strength is TxT2PmaxPilotStrengthAxisO is 12dB When the pilot strength Pi lotStrengthAxis 1 is -5 dB, the value of TxT2Pmax TxT2PmaxPilotStreng thAxisl which can be obtained at the pilot intensity is 27 dB.

 In step 24 of the embodiment, TxT2PmaxPi lotStrengthAxis 0 and TxT2PmaxPi lotS tren gthAxisl are respectively set to step 23 to query the T2P resource used by the system when the reverse packet with the packet length is limited to the fourth sub-packet in the HiCap mode. Therefore, the value of TxT2Pmax is always equal to the T2P resource used by the system queried in step 23. The TxT2Pmax function curve is a straight line independent of the pilot strength.

 Table 3 is the default value of the TxT2Pmax Attribute parameter.

T2P parameters, minutes, default value

TxT2Pmax NumPi lotS trengthAxisVa lues 2 Attribute

Pi lotStrengthAxisO -10 dB TxT2PmaxPi lotStrengthAxisO 12 dB

 Pi lotStrengthAxisl -5 dB

 TxT2PmaxPi lotStrengthAxisl 27 dB Step 25. Send the modified TxT2Pmax Attribute, TxT2Pmax parameter information to the corresponding reverse level user, and instruct the corresponding reverse level user to reverse the data packet according to the parameter information group and send it.

 In this embodiment, the maximum packet transmission rate corresponding to the maximum transmission rate is set according to different levels of the reverse level user, and the limit packet length of the reverse data packet corresponding to the maximum transmission rate is obtained, and the parameter is modified by modifying the corresponding TxT2Pmax Attribute parameter. Under the specified different pilot intensities, the value of TxT2Pm ax is always equal to the Hi2 mode, and the T2P resource used by the system is demodulated when the reverse packet with the packet length is demodulated in the 4th subpacket. Since the T2P resources available to the corresponding system when the reverse level users of different levels are sent are restricted, the limit packet length of the reverse level packets sent by the users of different levels of reverse level is restricted, and the reverse data packet is sent by the restriction. The limit packet length is implemented to limit the maximum transmission rate of reverse packets available to users of different levels of reverse level, that is, the speed limit of the reverse level user is realized, which reflects the reverse level when implementing BE, EF and AF services. Differentiated and prioritized users can easily meet the different needs of different users. In addition, it can provide network operators with tiered charging QoS solutions to improve operational revenue.

 The principle of realizing the speed limit of different levels of reverse level users by the above steps of the embodiment is discussed below:

According to the provisions of Section 10.11.6.1.6.1.1.1 of the RTC MAC Sub type 3 protocol, a reverse packet shall be sent in a certain packet length format, and the conditions for selecting 6 packet lengths must be satisfied at the same time. If any of the conditions of the six selected packet lengths is not satisfied, the reverse data packet cannot be transmitted in the packet length format. Therefore, it is only necessary to limit one of the six conditions for selecting the packet length to achieve the purpose of limiting the packet length. After the packet length is limited, the maximum transmission rate of the reverse data packet is also limited, and the rate limit of the reverse level user in this embodiment can be implemented. This embodiment limits the condition 3 for selecting the packet length specified in section 10.11.6.1.6.1.1.1 of the RTC MAC Subtype 3 protocol. Select condition 3 of the packet length, that is, formula (6) is as follows:

Max(l 0 ^Λ (T2PHiCap Pr eTransitionPS/ 10), 10 ^Λ (T2PHiCapPostTransitionPS /10)) ≤ 10 ^Λ (TxT2P max(PilotStrength _ns )/10)

 The RTC MAC Subtype3 protocol stipulates that formula (7):

10 ^Λ (T2PHiCap Pr eTransitionPS / 10) = 10 ^Λ (T2PHiCapPostTransitionPS /10)) = AverageT2P This embodiment changes the TxT2Pmax Attribute parameter so that the value of TxT2PMaX output is always equal to the T2P resource queried in step 23, which is equal to: HiCap mode, The T2P resource that the system needs to use when the reverse packet with the restricted packet length is demodulated at the 4th sub-packet. Therefore, substituting the formula (7) into the formula (6), when the packet length of the reverse packet is less than the limit packet length, the Average T2P required to transmit the reverse packet is smaller than the reverse packet of the restricted packet length. When demodulated, the minimum value of the T 2P resource required by the system, the formula (6) is always true; when the packet length of the reverse packet is greater than the limit packet length, the formula (6) does not hold.

 For example: Assume that the reverse packet rate set by the reverse level user is 153.6k bps. By looking up Table 1, the maximum transmission rate corresponds to a limit packet length of 1024bit. By looking up Table 2 in step 22 of the embodiment, it can be known that the reverse packet of the packet length is limited, and the T2P resource used by the system is 10 dB when the fourth sub-packet is demodulated. With step 24 of this embodiment, TxT2PMaX is set equal to 10 dB. At this time, when the packet length of the reverse packet is less than or equal to 1024 bits, the values of T2PHiCapPreTransition PS and T2PHiCapPostTransitionPS are both less than or equal to TxT2PMaX (10dB), and formula (6) is always true; when the packet length of the reverse packet is greater than 1024bit If it is 2048bit, then by looking up Table 2, the value of T2PHiCapPreTransion ionPS^T2PHiCapPos tTransit ionPS is 13 dB, which is greater than TxT2PMax ( lOdB), then the reverse data packet cannot be sent in the 2048 bit packet length format, thus limiting The restricted packet length of the reverse packet also limits the maximum transmission rate at which the reverse packet is sent.

A second aspect of the present invention provides a speed limiting device for a reverse level user. 4 is a schematic structural view of an embodiment of a speed limiting device of a reverse level user according to the present invention. This embodiment includes the first acquisition module 1 01. The module 102 and the sending module 103 are set.

 The first obtaining module 01 is configured to obtain a restricted packet length of the reverse data packet corresponding to the maximum transmission rate of the reverse level user reverse data packet.

 The setting module 102 is configured to set a power gain parameter of the traffic channel relative to the pilot channel (ie, a T 2P parameter), and the value of the power gain parameter is used when demodulating the reverse data packet having the restricted packet length. The minimum value of the power channel resource of the traffic channel relative to the pilot channel. In practical applications, the value of the T2P parameter can also be set to be slightly larger than the demodulation of the reverse data with the limited packet length, while ensuring that the maximum packet length allowed by the reverse reverse level user to transmit the reverse data packet does not exceed the limit packet length. The minimum value of the T2P resource that the system needs to use in each termination subpackage of the packet.

 The sending module 1300 is configured to send the T2P parameter information after the setting module 102 is set to the corresponding reverse level user, where the T2P parameter information is used to indicate that the corresponding reverse level user constructs the reverse data according to the T2P parameter information. Package and send.

 Based on the above technical solution, the embodiment may further include a customization module 104 and a second acquisition module 105.

 The customization module 104 is configured to set a maximum transmission rate of the reverse data packet to be sent by the corresponding reverse level user according to the level of the reverse level user, and send the maximum transmission rate of the set reverse data packet to the first acquisition module 101. .

 The second obtaining module 105 is configured to obtain a minimum value of the T2P resource that the system needs to use when demodulating the reverse data packet with the limited packet length acquired by the first acquiring module 101, and send the value of the T2P resource to the setting module 102. As a basis for the setting module 102 to perform T2P parameter setting.

In this embodiment, the maximum transmission rate of different reverse data packets is set for different levels of reverse level users by the customization module according to different levels of reverse level users. The first and second obtaining modules respectively obtain the restricted packet length corresponding to the maximum transmission rate, and the T2P resource that the system needs to use when demodulating the reverse data packet having the restricted packet length. By setting the module to modify the corresponding T2P parameters, the T2P resource available to the system is limited to the minimum value of the T2P resource that the system needs to use when demodulating the reverse packet with the restricted packet length. Maximum to the packet The packet length, by limiting the maximum packet length for sending reverse packets, limits the maximum transmission rate of reverse packets available to users of different levels of reverse level, thereby realizing the speed limit of the reverse level user, reflecting the reverse level. Differentiated and prioritized users can easily meet the different needs of different users. In addition, it can provide network operators with tiered charging QoS solutions to improve operational revenue.

 A third aspect of the present invention provides a speed limit system for a reverse level user. FIG. 5 is a schematic structural diagram of an embodiment of a speed limit system of a reverse level user according to the present invention. This embodiment includes a base station 1 and an access terminal 2.

 The base station 1 is configured to obtain a restricted packet length of the reverse data packet corresponding to the maximum transmission rate of the reverse level user reverse data packet; set a power gain parameter of the traffic channel relative to the pilot channel, and demodulate the value of the power gain parameter The minimum value of the power gain resource of the traffic channel to be used by the system when the reverse packet with the packet length is limited; and the set power gain parameter information is sent to the corresponding reverse level user. The terminal 2, the power gain parameter information is used to indicate that the corresponding reverse level user constructs a reverse data packet according to the power gain parameter information and transmits.

 The access terminal 2 is configured to receive power gain parameter information from the base station 1, and reverse the data packet according to the power gain parameter information group and transmit.

In this embodiment, the base station sets a corresponding T2P parameter by acquiring a limit packet length of a reverse data packet corresponding to a maximum transmission rate of a reverse level user reverse data packet of a preset different level, so that the reverse data packet corresponds to The T2P resource available to the system is equal to the minimum value of the T2P resource that the system needs to use when demodulating a reverse packet with a restricted packet length. In practical applications, the value of the T2P parameter may also be the minimum value of the T2P resource that can be set when the maximum packet length of the reverse reverse data allowed by the user of different reverse levels does not exceed the limit packet length. When the access terminals of different reverse level users perform group reverse data packets according to the modified T2P parameters and transmit, the T2P resources available to the corresponding system when the corresponding access terminal sends the reverse data packet are restricted. Limiting the maximum limit packet length of reverse-level users sent by different levels of reverse-level users, and limiting the maximum transmission rate of reverse packets available to users of different levels of reverse-level users by limiting the maximum limit packet length for sending reverse packets, Different levels of reverse, etc. The access terminals corresponding to the level users have different reverse transmission rate of the reverse data packets, realizing the speed limit of the reverse level users, reflecting the difference and priority between the reverse level users; in addition, being able to be the network operator Provide a level-based QoS solution to increase operational revenue.

 The base station in this embodiment is a specific application of the reverse level user speed limiting device of the present invention. The reverse level user speed limiting device of the present invention can also be integrated into an existing base station as a functional module. For the refinement module of the base station, reference may be made to the text description of the embodiment of the reverse level user speed limiting device of the present invention and the description of FIG. 4, and details are not described herein again.

 A person skilled in the art can understand that all or part of the steps of implementing the above method embodiments may be completed by using hardware related to program instructions, and the foregoing program may be stored in a computer readable storage medium, and the program is executed when executed. The steps of the foregoing method embodiments are included; and the foregoing storage medium includes: a medium that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

 It should be noted that the above embodiments are only for explaining the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those skilled in the art that: The technical solutions described in the foregoing embodiments are modified, or the equivalents of the technical features are replaced by the equivalents of the technical solutions of the embodiments of the present invention.

Claims

Claim

 1. A speed limiting method for a reverse level user, characterized by comprising:

 Obtaining a limit of a reverse packet corresponding to a maximum transmission rate of a reverse-level user reverse packet;

 Setting a power gain parameter of the traffic channel relative to the pilot channel, such that the value of the power gain parameter is a power gain of the traffic channel relative to the pilot channel that the system needs to use when demodulating the reverse data packet having the restricted packet length The minimum value of the resource;

 The power gain parameter information is sent to the corresponding reverse level user, and the power gain parameter information is used to instruct the reverse level user to construct and send the reverse data packet according to the power gain parameter information.

 2. The method for limiting rate of a reverse level user according to claim 1, wherein the obtaining a limit packet length of the reverse data packet corresponding to the maximum transmission rate of the reverse level user reverse data packet is further Includes:

 According to the level of the reverse level user, the maximum reverse transmission rate of the reverse data packet is allowed to be set by the corresponding reverse level user.

 The speed limit method of the reverse level user according to claim 1, wherein before the setting the power gain parameter, the method further includes:

 According to the limit packet length, the minimum value of the power gain resource that the system needs to use when demodulating and demodulating the reverse data packet having the corresponding packet length.

 The method for limiting rate of a reverse-level user according to claim 3, wherein the minimum value of the power gain resource to be used by the system when demodulating the reverse data packet having the corresponding packet length is: In the mixed mode of the capacity mode, the low delay mode or the high capacity mode and the low delay mode, the minimum value of the power gain resource that the system needs to use when the reverse packet having the restricted packet length is demodulated in each termination sub-packet.

The speed limit method of any reverse level user according to any one of claims 1-4, wherein the setting power gain parameter is specifically: Modifying a power gain resource maximum parameter that each sub-packet of the system can increase, and setting a value of the power gain resource maximum parameter is equal to a minimum value of a power gain resource that the system needs to use when demodulating a reverse data packet having the limited packet length value.

 The speed limit method of any reverse level user according to any one of claims 1-4, wherein the setting power gain parameter is specifically:

 Modifying the power gain maximum function parameter of the transmitted traffic channel relative to the pilot channel, setting the two transmitted traffic channels of the parameter with respect to the power channel maximum value of the pilot channel, the interpolation point ordinate is equal to, the demodulation has the The minimum value of the power gain resource that the system needs to use when limiting the packet's reverse packet.

 7. A speed limiting device for a reverse level user, characterized by comprising:

 a first acquiring module, configured to acquire a restricted packet length of the reverse data packet corresponding to a maximum transmission rate of the reverse level user reverse data packet;

 a setting module, configured to set a power gain parameter of the traffic channel relative to the pilot channel, such that a value of the power gain parameter is used to demodulate a reverse channel with the restricted packet length, and a traffic channel to be used by the system relative to the pilot channel The minimum value of the power gain resource;

 a sending module, configured to send the set of the power gain parameter information to a corresponding reverse level user, where the power gain parameter information is used to instruct the reverse level user to construct a reverse data packet according to the power gain parameter information And send.

 8. The speed limiting device of a reverse level user according to claim 7, further comprising:

 A custom module is configured to set a maximum transmission rate of the reverse data packet by the corresponding reverse level user according to the level of the reverse level user.

 The speed limit device of the reverse level user according to claim 7 or 8, further comprising:

And a second acquiring module, configured to obtain a minimum value of a power gain resource to be used by the system when demodulating the reverse data packet having the restricted packet length.

A rate limiting system for a reverse-level user, comprising a base station and an access terminal, wherein the base station is configured to acquire a restriction of a reverse data packet corresponding to a maximum transmission rate of a reverse-level user reverse data packet. a packet length; setting a power gain parameter of the traffic channel relative to the pilot channel, such that the value of the power gain parameter is used to demodulate the power of the traffic channel relative to the pilot channel when the reverse packet having the restricted packet length is demodulated The minimum value of the gain resource; the set power gain parameter information is sent to the access terminal of the corresponding reverse level user;

 The access terminal is configured to receive power gain parameter information from the base station, construct a reverse data packet according to the power gain parameter information, and send the data packet.