CN102026382A - Method and device for allocating resources in space division multiple access system - Google Patents
Method and device for allocating resources in space division multiple access system Download PDFInfo
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- CN102026382A CN102026382A CN2010105765730A CN201010576573A CN102026382A CN 102026382 A CN102026382 A CN 102026382A CN 2010105765730 A CN2010105765730 A CN 2010105765730A CN 201010576573 A CN201010576573 A CN 201010576573A CN 102026382 A CN102026382 A CN 102026382A
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Abstract
The invention discloses a method and a device for allocating resources in a space division multiple access system. The method comprises the steps of determining the scheduling priority level of a user; determining the affiliation space of the user; and allocating physical resources for the user according to the scheduling priority level and the affiliation space of the user. The invention has the advantages that the applicability is wide; the method and the device can be used for any space division multiple system and any duplexing system; the problem of the frequency domain resource allocation of the space division multiple access system in LTE (Long Term Evolution) or LTE-A can be effectively solved; the resources are multiplexed to the maximum extent, and the utilization rate of the resources is higher; a part of the scheduling time delay can be reduced; the success rate of the resource allocation is enhanced; and the method and the device can be widely applied to the resource allocation of a service channel and a control channel.
Description
Technical field
The present invention relates to wireless communication field, resource allocation methods and device in particularly a kind of SDMA (Space Division MultipleAccess, space division multiple access inserts) system.
Background technology
Space division multiplexing SDMA technology can be widely used in the indoor and outdoors scene, can be used to promote capacity, message transmission rate and the system spectrum utilance of sub-district.The multiplexing identical resource of user that can make a plurality of floors for example in the indoor space division multiplexing of carrying out floor gap, thus power system capacity significantly improved, and switch the sub-district of having reduced simultaneously when the user crosses over floor.
Base station equipment (eNB) is a distributed base station equipment, it is by Base Band Unit equipment B BU (Base BandUnit, baseband processing unit), RF remote equipment RRU (Radio Remote Unit, remote radio unit (RRU)) constitutes, and is a kind of base station combination of can the flexible distributed formula installing.In essence, SDMA utilizes the spatial separation between the antenna that different RRUs connects to realize space division multiplexing, for the user of ownership different RRUs distributes identical running time-frequency resource, thereby reaches the effect that promotes the availability of frequency spectrum and throughput of system.Here the space that will satisfy certain insulated degree requirement is called separate space, and in the ideal case, throughput of system can constantly increase with the growth of multiplexing separate space number, and its upper limit only depends on the actual treatment ability of BBU.The realization of SDMA technology needs the different RRUs antenna to satisfy certain insulated degree requirement, mainly realizes isolating by the penetration loss of floor gap for indoor SDMA, and outdoor directional antenna and the physical distance then can passed through realizes isolating.
BBU (Base Band Unit, baseband processing unit) is a part of being responsible for data processing in the base station, determines the transmission data on each RRU.RRU is the radio-frequency transmissions part of base station, the corresponding RRU of each separate space, a RRU can support the data of one or more passages to send, and each passage can connect one or more antennas, but the data on a plurality of antennas on the same passage are to merge transmission.Port number in each separate space is arranged net relevantly with actual, can only adopt the single port transmission when being configured to single channel in each separate space, and when being configured to multichannel in each separate space, then can adopt multiport mode transfer such as 2 ports, 4 ports.Link together by optical fiber between BBU and the RRU, BBU can handle the data on a plurality of RRU simultaneously, and the BBU disposal ability is relevant with number with the integrated circuit board disposal ability among the BBU, and its disposal ability has determined a RRU number that BBU can connect.Fig. 1 is the signal processing model schematic diagram of BBU+RRU, and the signal processing model of BBU and RRU is illustrated in figure 1 as:
Each RRU can receive user's transmission signal, and measurement module is adjudicated user's RRU ownership, and submitted attaching information to scheduler module by comparing the received signal intensity on each RRU.Scheduler module is carried out time-frequency resource allocating to each floor user, for the user that can carry out SDMA on the ownership different RRUs matches, for the pairing user distributes identical running time-frequency resource, send unpaired message and schedule information to measurement module and data reception module simultaneously, be used for next signal and receive.Measurement module is delivered to data reception module according to previous unpaired message with corresponding measurement data, is used for user data and detects.Scheduler module is sent to data transmission blocks with this schedule information simultaneously, is used for the transmission data on definite each RRU.
Physical source distributing need be considered two class users in the SDM system, one class is the user's (promptly only belonging to the user in a space) who is in separate space inside, this class subscriber signal can be fully and the user isolation of other separate space inside, can only receive RRU signal from separate space inside, not disturbed by the signal of RRU in other spaces, another kind of is the user's (promptly belonging to the user in a plurality of spaces) who is in the separate space switch area, and this class user can receive simultaneously from the RRU in a plurality of separate space and transmit.Therefore for the first kind user resource allocation time, can not consider the situation of resource allocation in other spaces, and need guarantee that the resource that it is assigned to is identical when being the second class user resource allocation in a plurality of separate space of ownership.
The deficiencies in the prior art are:
Also there is not the Resource Allocation Formula that is applied to the SDMA system at present based on LTE (Long Term Evolution, Long Term Evolution) and LTE-A (LongTerm Evolution-Advanced, long-term evolution upgrading) standard.
Summary of the invention
Technical problem solved by the invention has been to provide resource allocation methods and the device in a kind of SDMA system, in order to solve at present the resource allocation problem that is applied to the SDMA system based on LTE and LTE-A standard.
Resource allocation methods in a kind of SDMA system is provided in the embodiment of the invention, has comprised the steps:
Determine user's dispatching priority;
Determine user's home space;
Dispatching priority and home space according to the user are distributed physical resource for the user.
Preferably, distribute physical resource for the user, can comprise according to user's dispatching priority and home space:
Determine each user's allocation order according to dispatching priority;
Whether the home space of determining each user by allocation order is unique;
When user's home space is unique, give this user with unappropriated physical source distributing in this user attaching space, when user's home space when being a plurality of, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching.
Preferably, may further include:
With physical resource dividing is two set, and the physical resource of a set preferentially is used for the unique user of home space, and it is a plurality of users that the physical resource of a set preferentially is used for home space;
When distributing physical resource, according to user's the home space physical resource in the corresponding set of unique priority allocation whether for the user.
Preferably, distribute physical resource for the user, can comprise according to user's dispatching priority and home space:
Distribute physical resource for the user as follows in each space successively:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of,, then will work as physical source distributing same in the front space to this user if this user has distributed physical resource in other home space; If this user do not distribute physical resource in other home space, then will work as in the front space unappropriated physical source distributing to this user.
Preferably, distribute physical resource for the user, can comprise according to user's dispatching priority and home space:
Walk abreast and distribute physical resource for the user as follows in each space:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of, wait for the allocation result of other home space, all when distributing physical resource for this user, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching in all home space of this user.
Resource allocation device in a kind of SDMA system is provided in the embodiment of the invention, has comprised:
The priority determination module is used for determining user's dispatching priority;
Belong to determination module, be used for determining user's home space;
Resource distribution module is used for distributing physical resource according to user's dispatching priority and home space for the user.
Preferably, resource distribution module can be further used for determining according to dispatching priority each user's allocation order, determines by allocation order whether each user's home space is unique; When user's home space is unique, give this user with unappropriated physical source distributing in this user attaching space, when user's home space when being a plurality of, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching.
Preferably, it is two set that resource distribution module can be further used for physical resource dividing, and the physical resource of a set preferentially is used for the unique user of home space, and it is a plurality of users that the physical resource of a set preferentially is used for home space; When distributing physical resource, according to user's the home space physical resource in the corresponding set of unique priority allocation whether for the user.
Preferably, resource distribution module can be further used for distributing physical resource for the user as follows in each space successively:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of,, then will work as physical source distributing same in the front space to this user if this user has distributed physical resource in other home space; If this user do not distribute physical resource in other home space, then will work as in the front space unappropriated physical source distributing to this user.
Preferably, resource distribution module can be further used for walking abreast and distribute physical resource for the user as follows in each space:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of, wait for the allocation result of other home space, all when distributing physical resource for this user, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching in all home space of this user.
Beneficial effect of the present invention is as follows:
The technical scheme that the embodiment of the invention provides has extensive applicability, can be used for any SDM system, any duplex system (TDD (Time Division Duplex, time division duplex) system or FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) system).Can effectively solve the frequency domain resource assignment problem of SDMA system among LTE or the LTE-A; And maximum multiplexed resource, resource utilization is higher; Owing to avoided search pairing user's flow process, reduced a part of scheduling time delay.
Description of drawings
Fig. 1 is the signal processing model schematic diagram of BBU+RRU in the background technology;
Fig. 2 is the resource allocation methods implementing procedure schematic diagram in the SDMA system in the embodiment of the invention;
Fig. 3 is the resource allocation device structural representation in the SDMA system in the embodiment of the invention.
Embodiment
SDMA system based on the physical isolation degree mainly is meant the technology that realizes resource multiplex by the physical isolation between the user (as the interlayer loss of building), be that identical running time-frequency resource can be distributed for the user who is in the different separate space in the base station, thereby improve the utilance of resource, significantly improve the throughput and the user's data transmission rate of system.Frequency domain resource in the SDM system is distributed the home space that need take all factors into consideration the user, dispatching priority and required frequency domain resource size etc.
The resource of existing non-SDMA system does not need to consider that the multi-user matches, have only the user of SDMA need consider that just the multi-user matches, simultaneously, the SDMA system is that a kind of physical space independence that relies on is distinguished the user, therefore the user is divided into two classes, and a class is in separate space inside, can only receive the signal of the inner RRU of a separate space, one class is the switch area that is in a plurality of separate space, can receive the signal of the inner RRU of a plurality of separate space.Therefore need the special scheme of design to come the user is carried out resource allocation.But do not have SDMA Resource Allocation Formula at present based on the LTE system.Because do not consider the residing positional information of user, can not determine the pairing user according to positional information, so prior art is not supported the resource allocation of this SDMA system.
Given this, the technical scheme that the embodiment of the invention provides is based on LTE and LTE-A standard, the Resource Allocation Formula that carries out frequency domain dispatching according to known users home space information and dispatching priority of users for the SDMA system user is provided, it is user resource allocation that this scheme adopts the mode of resource searching, do not consider the pairing user that each user is concrete, can be widely used in the resource allocation of Traffic Channel and control channel.Below in conjunction with accompanying drawing the specific embodiment of the present invention is described.
Fig. 2 is the resource allocation methods implementing procedure schematic diagram in the SDMA system, as shown in the figure, can comprise the steps: when resource allocation
Step 201, determine user's dispatching priority;
Step 202, determine user's home space;
Step 203, distribute physical resource for the user according to user's dispatching priority and home space.
In the enforcement, step 201,202 enforcement there is no inevitable sequential relationship, but can come to determine the sequencing of the definite user's of execution dispatching priority and definite user's home space as required.
In concrete the enforcement, provide three kinds of modes in the embodiment of the invention, described below.
For ease of classified description and be convenient to understand, user in the explanation that home space is unique is called first kind user, is that a plurality of users is called the second class user with home space.
One, mode one.
Under this mode, whole users are formed the dispatching priority formation, dispatch successively, be respectively each user and distribute physical resource according to the serial of formation order.For first kind user, only need on unique separate space of its ownership, to search available resources; Be in the user of switch area for second class, need search all available resource of a plurality of separate space same positions of its ownership, resource allocation success back this user of deletion in formation.As follows in the enforcement:
Dispatching priority and home space according to the user are distributed physical resource for the user, can comprise:
Determine each user's allocation order according to dispatching priority;
Whether the home space of determining each user by allocation order is unique;
When user's home space is unique, give this user with unappropriated physical source distributing in this user attaching space, when user's home space when being a plurality of, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching.
Concrete, under first kind of mode:
At first, according to the dispatching priority criterion whole (in all separate space) are treated that the dispatched users arrangement forms Subscriber Queue;
Then, be followed successively by each user and carry out following operation:
1, the inquiry spatial information that the active user belonged to;
2, search for available resources for the user in its home space, still unappropriated physical source distributing is given this user.If be the second class user (user attaching is in a plurality of spaces), then selected physical resource needs in the institute of its ownership has living space all unoccupied;
3, identify the physical resource position of having distributed, delete the user of Resources allocation;
If 4 have arrived the formation afterbody or all resource allocations finish, then frequency domain dispatching finishes.
Can further include in the enforcement:
With physical resource dividing is two set, and the physical resource of a set preferentially is used for the unique user of home space, and it is a plurality of users that the physical resource of a set preferentially is used for home space;
When distributing physical resource, according to user's the home space physical resource in the corresponding set of unique priority allocation whether for the user.
Concrete, can adopt above-mentioned resource distribution mode to improve the second class user's resource allocation success rate, can be as follows in the enforcement:
At first, be two set with resource division, two interior resource size of set are dynamically determined according to two class user resource requirements of estimation;
Secondly, first kind user priority is from gathering Resources allocation in 1, and second class is preferentially from gathering Resources allocation in 2;
At last, after the resource allocation of each set was intact, the user can seize the resource of other set, finishes up to resource allocation.
Two, mode two.
Under this mode, the user in each separate space is formed the dispatching priority formation respectively, successively each layer user dispatched, all only need available physical resources in the current separate space of search for two class users; But after the resource allocation success, the second class user need take this physical resource position in other spaces of its ownership in the lump, and this user of deletion in the formation in other spaces.As follows in the enforcement:
Dispatching priority and home space according to the user are distributed physical resource for the user, can comprise:
Distribute physical resource for the user as follows in each space successively:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of,, then will work as physical source distributing same in the front space to this user if this user has distributed physical resource in other home space; If this user do not distribute physical resource in other home space, then will work as in the front space unappropriated physical source distributing to this user.
Concrete, under the second way:
At first, the user is divided into groups by its home space;
Secondly, each group is sorted, sortord includes but not limited to: produce at random, according to treat the dispatched users number what from big to small or from small to large, according to the logical order of RRU networking etc.
Through the grouping, also promptly determined the attaching relation between user and each separate space after, successively the user in each separate space is carried out following operation:
Arrange the formation Subscriber Queue according to the dispatched users for the treatment of that the dispatching priority criterion will belong in the current separate space;
Again, be followed successively by the user and carry out following operation:
1, be the user search resource on front space, still unappropriated physical source distributing is given this user.
2, inquiring user home space information if be the second class user (user attaching is in a plurality of spaces), is also distributed to this user with the resource of this position in other spaces.
Owing to be to be followed successively by each layer user resource allocation, so the occupied situation of the same asset in other spaces can not occur.
3, the user of Resources allocation is deleted in the physical resource position distributed of sign, if be the second class user then need it is deleted in all home space formations.
If 4 have arrived the formation afterbody or all resource allocations finish, then the frequency domain dispatching in this separate space finishes.
Three, mode three.
Under this mode, the user in each separate space is formed the dispatching priority formation respectively, walk abreast user in each space is dispatched, for not carrying out any operation behind the first kind user resource allocation; For the second class user, need the formation in other spaces of its ownership of wait also to carry out this user, be its Resources allocation again.As follows in the enforcement:
Dispatching priority and home space according to the user are distributed physical resource for the user, can comprise:
Walk abreast and distribute physical resource for the user as follows in each space:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of, wait for the allocation result of other home space, all when distributing physical resource for this user, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching in all home space of this user.
Concrete, under the third mode:
At first, the user is divided into groups by its home space;
Through the grouping, also promptly determined the attaching relation between user and each separate space after, the following operation of executed in parallel in each separate space:
Arrange the formation Subscriber Queue according to the dispatched users for the treatment of that the dispatching priority criterion will belong in the current separate space;
Again, be followed successively by the user and carry out following operation:
1, inquiring user home space information if be the second class user (user attaching is in a plurality of spaces), need wait for that then this user is also carried out in the formation in other spaces of its ownership, distributes again;
2, be the user search resource on front space, still unappropriated physical source distributing is given this user.If be the second class user (user attaching is in a plurality of spaces), then selected physical resource needs in the institute of its ownership has living space all unoccupied;
3, the user of Resources allocation is deleted in the physical resource position distributed of sign, if be the second class user then need it is deleted in all home space formations;
If 4 have arrived the formation afterbody or all resource allocations finish, then the frequency domain dispatching in this separate space finishes.
Based on same inventive concept, resource allocation device in a kind of SDMA system also is provided in the embodiment of the invention, because the principle of device solves problem is similar with the resource allocation methods in a kind of SDMA system, therefore the enforcement of device can be referring to the enforcement of method, and the repetition part repeats no more.
Fig. 3 is the resource allocation device structural representation in the SDMA system, as shown in the figure, can comprise in the device:
Priority determination module 301 is used for determining user's dispatching priority;
Belong to determination module 302, be used for determining user's home space;
Resource distribution module 303 is used for distributing physical resource according to user's dispatching priority and home space for the user.
Implement similarly to aforesaid three kinds of modes, the concrete structure to resource allocation device describes below.
Mode once can be as follows:
Resource distribution module is further used for determining according to dispatching priority each user's allocation order, determines by allocation order whether each user's home space is unique; When user's home space is unique, give this user with unappropriated physical source distributing in this user attaching space, when user's home space when being a plurality of, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching.
In the enforcement, it is two set that resource distribution module can also be further used for physical resource dividing, and the physical resource of a set preferentially is used for the unique user of home space, and it is a plurality of users that the physical resource of a set preferentially is used for home space; When distributing physical resource, according to user's the home space physical resource in the corresponding set of unique priority allocation whether for the user.
Mode two times can be as follows:
Resource distribution module is further used for distributing physical resource for the user as follows in each space successively:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of,, then will work as physical source distributing same in the front space to this user if this user has distributed physical resource in other home space; If this user do not distribute physical resource in other home space, then will work as in the front space unappropriated physical source distributing to this user.
Mode three times can be as follows:
Resource distribution module is further used for walking abreast and distributes physical resource for the user as follows in each space:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of, wait for the allocation result of other home space, all when distributing physical resource for this user, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching in all home space of this user.
For the convenience of describing, the each several part of the above device is divided into various modules with function or the unit is described respectively.Certainly, when enforcement is of the present invention, can in same or a plurality of softwares or hardware, realize the function of each module or unit.
As seen from the above-described embodiment, proposed a kind of in the embodiment of the invention based on user attaching spatial information and dispatching priority of users, carry out the resource allocation methods and the device of frequency domain dispatching for the user, it is user resource allocation that this scheme adopts the mode of resource searching, do not consider the pairing user that each user is concrete, can effectively solve the resource allocation problem of Traffic Channel and control channel in the SDMA system.
Concrete, based on user attaching spatial information and dispatching priority of users, the Resource Allocation Formula that carries out frequency domain dispatching for the user comprises three kinds of implementations:
1, all the user forms the dispatching priority formation, dispatches successively according to the serial of formation order, is respectively each user and distributes physical resource.For first kind user, only need on unique separate space of its ownership, to search available resources; Be in the user of switch area for second class, need search all available resource of a plurality of separate space same positions of its ownership.Resource allocation success back this user of deletion in formation.
Further, can with resource division two set, first kind user priority distributes from gathering 1, and second class is preferentially distributed from gathering 2, can seize the resource of other set after the resource allocation of each set is intact.
2, the user in each separate space forms the dispatching priority formation respectively, successively each layer user is dispatched, and all only needs available physical resources in the current separate space of search for two class users; But after the resource allocation success, the second class user need take this physical resource position in other spaces of its ownership in the lump, and this user of deletion in the formation in other spaces;
3, the user in each separate space forms the dispatching priority formation respectively, walks abreast user in each space is dispatched, for not carrying out any operation behind the first kind user resource allocation; For the second class user, need the formation in other spaces of its ownership of wait also to carry out this user, be its Resources allocation again.
The technical scheme that the embodiment of the invention provides has extensive applicability, can be used for any SDM system, any duplex system (TDD (Time Division Duplex, time division duplex) system or FDD (Frequency Division Duplex, Frequency Division Duplexing (FDD)) system).Can effectively solve the frequency domain resource assignment problem of SDMA system among LTE or the LTE-A; And maximum multiplexed resource, resource utilization is higher; Owing to avoided search pairing user's flow process, reduced a part of scheduling time delay; And further taken all factors into consideration two class users' resource allocation, thereby improved the resource allocation success rate;
Can also be widely used in the resource allocation of Traffic Channel and control channel.
Those skilled in the art should understand that embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt complete hardware embodiment, complete software implementation example or in conjunction with the form of the embodiment of software and hardware aspect.And the present invention can adopt the form that goes up the computer program of implementing in one or more computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) that wherein include computer usable program code.
The present invention is that reference is described according to the flow chart and/or the block diagram of method, equipment (system) and the computer program of the embodiment of the invention.Should understand can be by the flow process in each flow process in computer program instructions realization flow figure and/or the block diagram and/or square frame and flow chart and/or the block diagram and/or the combination of square frame.Can provide these computer program instructions to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, make the instruction of carrying out by the processor of computer or other programmable data processing device produce to be used for the device of the function that is implemented in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame appointments.
These computer program instructions also can be stored in energy vectoring computer or the computer-readable memory of other programmable data processing device with ad hoc fashion work, make the instruction that is stored in this computer-readable memory produce the manufacture that comprises command device, this command device is implemented in the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
These computer program instructions also can be loaded on computer or other programmable data processing device, make on computer or other programmable devices and to carry out the sequence of operations step producing computer implemented processing, thereby the instruction of carrying out on computer or other programmable devices is provided for being implemented in the step of the function of appointment in flow process of flow chart or a plurality of flow process and/or square frame of block diagram or a plurality of square frame.
Although described the preferred embodiments of the present invention, in a single day those skilled in the art get the basic creative notion of cicada, then can make other change and modification to these embodiment.So claims are intended to all changes and the modification that are interpreted as comprising preferred embodiment and fall into the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification to the present invention and not break away from the spirit and scope of the present invention.Like this, if of the present invention these are revised and modification belongs within the scope of claim of the present invention and equivalent technologies thereof, then the present invention also is intended to comprise these changes and modification interior.
Claims (10)
1. a space division multiple access inserts the resource allocation methods in the SDMA system, it is characterized in that, comprises the steps:
Determine user's dispatching priority;
Determine user's home space;
Dispatching priority and home space according to the user are distributed physical resource for the user.
2. the method for claim 1 is characterized in that, distributes physical resource according to user's dispatching priority and home space for the user, comprising:
Determine each user's allocation order according to dispatching priority;
Whether the home space of determining each user by allocation order is unique;
When user's home space is unique, give this user with unappropriated physical source distributing in this user attaching space, when user's home space when being a plurality of, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching.
3. method as claimed in claim 2 is characterized in that, further comprises:
With physical resource dividing is two set, and the physical resource of a set preferentially is used for the unique user of home space, and it is a plurality of users that the physical resource of a set preferentially is used for home space;
When distributing physical resource, according to user's the home space physical resource in the corresponding set of unique priority allocation whether for the user.
4. the method for claim 1 is characterized in that, distributes physical resource according to user's dispatching priority and home space for the user, comprising:
Distribute physical resource for the user as follows in each space successively:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of,, then will work as physical source distributing same in the front space to this user if this user has distributed physical resource in other home space; If this user do not distribute physical resource in other home space, then will work as in the front space unappropriated physical source distributing to this user.
5. the method for claim 1 is characterized in that, distributes physical resource according to user's dispatching priority and home space for the user, comprising:
Walk abreast and distribute physical resource for the user as follows in each space:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of, wait for the allocation result of other home space, all when distributing physical resource for this user, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching in all home space of this user.
6. the resource allocation device in the SDMA system is characterized in that, comprising:
The priority determination module is used for determining user's dispatching priority;
Belong to determination module, be used for determining user's home space;
Resource distribution module is used for distributing physical resource according to user's dispatching priority and home space for the user.
7. device as claimed in claim 6 is characterized in that resource distribution module is further used for determining according to dispatching priority each user's allocation order, determines by allocation order whether each user's home space is unique; When user's home space is unique, give this user with unappropriated physical source distributing in this user attaching space, when user's home space when being a plurality of, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching.
8. device as claimed in claim 7, it is characterized in that, it is two set that resource distribution module is further used for physical resource dividing, and the physical resource of a set preferentially is used for the unique user of home space, and it is a plurality of users that the physical resource of a set preferentially is used for home space; When distributing physical resource, according to user's the home space physical resource in the corresponding set of unique priority allocation whether for the user.
9. device as claimed in claim 6 is characterized in that, resource distribution module is further used for distributing physical resource for the user as follows in each space successively:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of,, then will work as physical source distributing same in the front space to this user if this user has distributed physical resource in other home space; If this user do not distribute physical resource in other home space, then will work as in the front space unappropriated physical source distributing to this user.
10. device as claimed in claim 6 is characterized in that, resource distribution module is further used for walking abreast and distributes physical resource for the user as follows in each space:
Determine the allocation order of each user in front space according to dispatching priority;
Distribute physical resource for the user as follows by allocation order:
When user's home space is unique, will works as in the front space unappropriated physical source distributing and give this user;
When user's home space when being a plurality of, wait for the allocation result of other home space, all when distributing physical resource for this user, all unappropriated physical source distributing is given this user in a plurality of spaces with this user attaching in all home space of this user.
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| CN102026382B (en) | 2012-12-26 |
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