CN104284424A - Uplink control channel resource allocating method in multi-antenna system and base station - Google Patents

Uplink control channel resource allocating method in multi-antenna system and base station Download PDF

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CN104284424A
CN104284424A CN201310282427.0A CN201310282427A CN104284424A CN 104284424 A CN104284424 A CN 104284424A CN 201310282427 A CN201310282427 A CN 201310282427A CN 104284424 A CN104284424 A CN 104284424A
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frequency domain
resources list
resources
list
domain resource
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CN104284424B (en
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胡奕
曾超君
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China Academy of Telecommunications Technology CATT
Datang Mobile Communications Equipment Co Ltd
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China Academy of Telecommunications Technology CATT
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0453—Resources in frequency domain, e.g. a carrier in FDMA

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

The invention discloses an uplink control channel resource allocating method in a multi-antenna system and a base station, and relates to a communication technique. At least one resource list is determined according to frequency domain resources reserved by a system for an antenna port port1 based on channel selection in a physical uplink control format 1b; multiple pieces of UE are allowed to share one resource list when the resource lists are allocated to the UE in a cell so that cost of PUCCH resources can be reduced; meanwhile, the UE sharing the same resource list is scheduled in different ACK/NACK feedback windows and accordingly the situation that the ACK/NACK feedback resources of different pieces of UE collide is avoided.

Description

Uplink control channel resource distribution method in multiaerial system and base station
Technical field
The present invention relates to the communication technology, particularly relate to the uplink control channel resource distribution method in a kind of multiaerial system and base station.
Background technology
LTE-A(Long Term Evolution Advanced, the Long Term Evolution strengthened) the system UCI(Uplink Control Information that uses PUCCH transmitting synchronous later, ascending control information), the ascending control information that PUCCH transmits mainly comprises SRI(Scheduling Request Indicator, dispatch request indicates), descending ACK/NACK feedback and cycle CQI(Channel Quality Indicator, channel quality indicates)/PMI(Precoding Matrix Indicator, pre-coding matrix indicates)/RI(Rank Information, order information) reporting information.According to the difference of the information of carrying on PUCCH, define multiple PUCCH format, as shown in table 1.
The PUCCH format that table 1 lte-a system is supported
PUCCH adopt frequency-hopping mode transmit, lay respectively at the both sides of frequency band, the frequency domain width of every side is 1 PRB(Physical Resource Block, Physical Resource Block) integral multiple.Each PUCCH resource takies a pair PRB, and the mode of being divided by code with the PUCCH resource between multiple user in a pair PRB is distinguished.Be PUCCH (1) for transmitting the resources definition of PUCCH format 1/1a/1b, resources definition for PUCCH format 2/2a/2b is PUCCH (2), and the resources definition for PUCCH format 3 is PUCCH (3).PUCCH (1), PUCCH (2) and PUCCH (3) be numbering separately.
For PUCCH (1), the PUCCH resource that PRB can carry is individual, wherein: L cS_PUCCHfor the cyclically shifted sequences length of PUCCH channel, L cS_PUCCHvalue be 12; represent the cyclic shift interval of cyclically shifted sequences, selectable value is 1,2,3; N othogonal_seqfor the number of orthogonal sequence, for conventional CP frame structure N othogonal_seqvalue is 3, for expansion CP frame structure N othogonal_seqvalue is 2.Suppose n othogonal_seq=3, then the PUCCH resource number that PUCCH (1) PRB can carry is 12/2 × 3=18, PUCCH(1 in supposing the system) resource comprises N 1these PRB are numbered, then for PRB i according to frequency domain order from low to high by individual PRB 1(0≤i 1<N 1), PUCCH (1) resource index number of its correspondence is 18i 1~ 18i 1+ 17.This shows, PUCCH (1) resource is determined by time-domain information (cycle, initial frame number, sub-frame offset), frequency domain information (position of shared PRB), code domain information (cyclic shift used) three key elements, and wherein frequency domain information, code domain information consolidation show as the frequency domain call number of PUCCH in a subframe.Base station is that the PUCCH resource of UE distribution is by a pair numbering { n pUCCH, I uCIidentify, wherein n pUCCHrepresent frequency domain index, I uCIdomain Index during expression.
In order to utilize many transmit antennas to obtain diversity gain, introduce transmit diversity techniques in lte-a system for PUCCH, to reach better transmission performance.Various PUCCH format all adopts SORTD(Spatial orthogonal resources transmit diversity, orthogonal space resource transmitting diversity) transmit diversity mode.The sending method of SORTD is: the signal after modulation carries out spread spectrum by different, the mutually orthogonal exclusive orthogonal sequence of antenna port, and sent by different antenna ports respectively, namely different antenna ports takies mutually orthogonal resource.Current standard supports that the PUCCH of 2 antenna ports transmits.
In LTE-A, base station to the PDSCH(Physical Downlink Shared Channel of UE, Physical Downlink Shared Channel) transmission feeds back with the descending ACK/NACK of UE and there is certain timing relationship.UE transmits the ACK/NACK feedback information of descending sub frame n-k at sub-frame of uplink n.For FDD(Frequency Division Duplex, Frequency Division Duplexing (FDD)) system, n is fixed as 4; For TDD(Time Division Duplex, time division duplex) system, ascending-descending subframes configuration is as shown in table 2, due to the asymmetry of ascending-descending subframes, may there is the situation of the ACK/NACK feedback of the corresponding multiple descending sub frame of a sub-frame of uplink, under different tdd frame structural allocation, the corresponding relation of n and k is as shown in table 3.
The ascending-descending subframes configuration of table 2 TDD system
The value of the lower k of the various TDD system frame structure configuration of table 3
In lte-a system, use the PUCCH format 1b(based on Channel assignment hereinafter referred to as PUCCH format 1b with channel selection) the ACK/NACK feedback information of maximum 4 bits can be supported.PUCCH format 1b with channel selection mainly contains following two kinds of application scenarioss:
Scene 1: for TDD system, UE configures the situation of 1 Serving cell;
Scene 2: support CA(Carrier Aggregation, carrier aggregation) characteristic, the situation of 2 Serving cells is configured for UE.
For the application of PUCCH format 1b with channel selection in scene 1:
In a tdd system, for only configuring the UE of a Serving cell, support ACK/NACK bundling and the descending ACK/NACK feedback system of ACK/NACK multiplexing two kinds.LTE-A agreement specifies, for the 6 kinds of frame structure configurations of other except TDD ascending-descending subframes configuration 5, all supports ACK/NACK bundling and the descending ACK/NACK feedback system of ACK/NACK multiplexing two kinds; For TDD ascending-descending subframes configuration 5, only support ACK/NACK bundling feedback system.Which kind of mode UE specifically uses by base station RRC(Radio Resource Control, wireless heterogeneous networks) layer is configured.For TDD ACK/NACK multiplexing feedback system, as the M>1 that sub-frame of uplink n is corresponding, then to carry out logical AND to the feedback information of the multiple code words in same descending sub frame in M the descending sub frame fed back in this sub-frame of uplink n, the i.e. corresponding 1 bit feedback information of each descending sub frame, uses PUCCH format1b with channel selection transferring ACK/nack message.
Definition for by subframe n-k ithe PUCCH resource obtained, HARQ-ACK (i) is subframe n-k ithe specifying information of corresponding ACK/NACK/DTX response, wherein k i∈ K (as table in define), 0≤i≤M-1:
If UE is at subframe n-k ithe PDSCH transmission of a middle existence dynamic dispatching or an indicating downlink SPS(Semi-Persistent Scheduling, semi-continuous scheduling) the PDCCH transmission of resource release, wherein k i∈ K, then the PUCCH resource that this subframe is corresponding is n PUCCH , i ( 1 ) = ( M - i - 1 ) &CenterDot; N c + i &CenterDot; N c + 1 + n CCE , i + N PUCCH ( 1 ) , Wherein c is that { one that selects in 0,1,2,3} meets N from set c≤ n cCE, i<N c+1value, n cCE, ifor subframe n-k imiddle PDCCH transmits the call number of first CCE used, configured by base station rrc layer;
If UE is at subframe n-k iin only there is the PDSCH transmission not having corresponding PDCCH instruction, then subframe n-k ithe HARQ-ACK feedback resources of corresponding PUCCH resource corresponding to descending SPS transmission.
For PUCCH format 1b with channel selection, if adopt the transmitting diversity of 2 antenna ports, then basis
Table 1, table 2 and table 3 carry out channel selectivity.Now UE adopts PUCCH format 1b in PUCCH resource in sub-frame of uplink n upper transmission b (0), b (1):
For antenna port port0, the PUCCH resource of use respectively for M=2, the situation of 3,4 is M PUCCH resource in carry out Channel assignment and obtain carrying out Channel assignment and obtain;
For antenna port port1, the PUCCH resource of use from resource collection middle selection, this resource collection is configured by the rrc layer of base station, 0≤i≤M-1, respectively for M=2, the situation of 3,4 is carried out Channel assignment and is obtained.
Table 1 Transmission of HARQ-ACK multiplexing for M=2
Table 2 Transmission of HARQ-ACK multiplexing for M=3
Table 3 Transmission of HARQ-ACK multiplexing for M=4
This shows, in TDD system, under non-CA scene, for the 2 antenna port transmission of PUCCH format1b with channel selection, the resource mapping method of antenna port port0 is identical with resource mapping method during single antenna port transmission, and for antenna port port1, needing base station rrc layer is first the multiple PUCCH resource transmitted for antenna port port1 of UE configuration, UE selects a resource used as this transmit antenna port port1 at the sub-frame of uplink of each transferring ACK/NACK based on channel selectivity from this multiple resource.And how base station is the multiple PUCCH resource transmitted for antenna port port1 of UE configuration, does not specify at present, depend on that equipment realizes.
At present, in the 2 antenna port transmission situations for PUCCH format1b with channel selection, resource distribution is carried out to antenna port port1, usual way is for different UE configures different antenna port port1 resources, each UE carries out Channel assignment, the situation that this method can ensure there will not be the ACK/NACK feedback resources of different UEs to clash based on multiple resources of configuration.
But from the utilization ratio of PUCCH resource, because each ACK/NACK transmission of UE only employs wherein 1 resource in this multiple PUCCH resource configured for this UE, when system user number is numerous, the PUCCH resource expense of system is also corresponding larger, obviously, make to there is the large problem of system PUCCH resource expense in this way.
Summary of the invention
The embodiment of the present invention provides uplink control channel resource distribution method in a kind of multiaerial system and base station, to reduce PUCCH resource expense.
Uplink control channel resource distribution method in a kind of multiaerial system that the embodiment of the present invention provides, comprising:
The frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment is kept for according to system, determine at least one the Resources list, in each the Resources list, at least comprise the frequency domain resource needed for antenna port port1 of a user equipment (UE);
For the UE Resources allocation list in community, and scheduling shares the UE of same the Resources list in different ACK/NACK feedback window.
The method keeps for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment according to system, determine at least one the Resources list, during for UE Resources allocation list in community, multiple UE can be allowed to share same the Resources list, to reduce PUCCH resource expense, meanwhile, in different ACK/NACK feedback window, scheduling shares the UE of same the Resources list, and then the situation avoiding the ACK/NACK feedback resources of different UEs to clash.
Further, in order to make the distance in each the Resources list between each frequency domain resource as far as possible large, and then embody channel selectivity gain as far as possible, the described frequency domain resource keeping for the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment according to system, determine at least one the Resources list, specifically comprise:
System is kept for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment, according to the grouping that puts in order of frequency domain resource, the group number of grouping is at least the minimum value needing the frequency domain resource comprised in each the Resources list;
Being divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determining at least one the Resources list.
Further, can realizing in the following way being divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determining at least one the Resources list:
To the serial number from same numeral of the frequency domain resource in every group;
Be divided in same the Resources list arrange numbering identical frequency domain resource in each group, form at least one the Resources list, the frequency domain resource in each the Resources list is according to the arrangement that puts in order of grouping.
In the uplink control channel resource distribution method in a kind of multiaerial system that the embodiment of the present invention provides, described is UE Resources allocation list in community, specifically comprises:
To each the Resources list serial number;
According to the numbering of each the Resources list, again the Resources list is sorted by dichotomy;
For the Resources list after the UE in community successively distribution sort.
Carried out the sequence of the Resources list by which, the PUCCH list with larger frequency domain interval can be made preferentially to be distributed, and then the distance between the frequency domain resource that different UEs is distributed is tried one's best large, the interference between the PUCCH resource of reduction different UEs.
In the uplink control channel resource distribution method in a kind of multiaerial system that the embodiment of the present invention provides, the PUCCH resource conflict of the ACK/NACK transmission of UE during in order to avoid descending scheduling as far as possible, described is UE in community the Resources list successively after distribution sort, specifically comprises:
Be preferably different UE and distribute different the Resources lists, and when UE number is greater than the Resources list number, allow different UE shared resource lists.
In the uplink control channel resource distribution method in a kind of multiaerial system that the embodiment of the present invention provides, the UE of described shared same the Resources list of scheduling in different ACK/NACK feedback window, specifically comprises:
Determine the user equipment (UE) set participating in current downlink subframe scheduling, and determine the dispatching priority of each UE;
According to described dispatching priority order, for each UE, judge whether that there is the UE with current UE with same antenna port port1 resource distribution is scheduled in the ACK/NACK feedback window at the descending sub frame place of current scheduling, if existed, then in current downlink subframe, do not dispatch this UE, otherwise, this UE is dispatched.
The embodiment of the present invention also provides a kind of base station, and for realizing the uplink control channel resource distribution method in multiaerial system, this base station comprises:
Determining unit, for keeping for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment according to system, determine at least one the Resources list, in each the Resources list, at least comprise the frequency domain resource needed for antenna port port1 of a user equipment (UE);
Distribute and scheduling unit, for be the UE Resources allocation list in community, and in different ACK/NACE feedback window the UE of the shared same the Resources list of scheduling.
The frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment is kept for according to system in this base station, determine at least one the Resources list, during for UE Resources allocation list in community, multiple UE can be allowed to share same the Resources list, to reduce PUCCH resource expense, meanwhile, in different ACK/NACK feedback window, scheduling shares the UE of same the Resources list, and then the situation avoiding the ACK/NACK feedback resources of different UEs to clash.
In order to make distance in each the Resources list between each frequency domain resource as far as possible large, and then embody channel selectivity gain as far as possible, in this base station, described determining unit specifically for:
System is kept for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment, according to the grouping that puts in order of frequency domain resource, the group number of grouping is at least the minimum value needing the frequency domain resource comprised in each the Resources list;
Being divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determining at least one the Resources list.
Wherein, described determining unit is divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determines at least one the Resources list, can realize in the following way:
To the serial number from same numeral of the frequency domain resource in every group;
Be divided in same the Resources list arrange numbering identical frequency domain resource in each group, form at least one the Resources list, the frequency domain resource in each the Resources list is according to the arrangement that puts in order of grouping.
Preferentially distributed for making the PUCCH list with larger frequency domain interval, and then the distance between the frequency domain resource making different UEs distribute is tried one's best large, interference between the PUCCH resource of reduction different UEs, in the base station that the embodiment of the present invention provides, described distribution and scheduling unit are the UE Resources allocation list in community, specifically comprise:
To each the Resources list serial number;
According to the numbering of each the Resources list, again the Resources list is sorted by dichotomy;
For the Resources list after the UE in community successively distribution sort.
The PUCCH resource conflict of the ACK/NACK transmission of UE during in order to avoid descending scheduling as far as possible, in the base station that the embodiment of the present invention provides, described distribution and scheduling unit are UE in community the Resources list successively after distribution sort, specifically comprise:
Be preferably different UE and distribute different the Resources lists, and when UE number is greater than the Resources list number, allow different UE shared resource lists.
In the base station that the embodiment of the present invention provides, described distribution and scheduling unit dispatch the UE sharing same the Resources list in different ACK/NACK feedback window, specifically comprise:
Determine the user equipment (UE) set participating in current downlink subframe scheduling, and determine the dispatching priority of each UE;
According to described dispatching priority order, for each UE, judge whether that there is the UE with current UE with same antenna port port1 resource distribution is scheduled in the ACK/NACK feedback window at the descending sub frame place of current scheduling, if existed, then in current downlink subframe, do not dispatch this UE, otherwise, this UE is dispatched.
The embodiment of the present invention also provides a kind of base station, and this base station comprises:
Processor, be configured to the frequency domain resource keeping for the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment according to system, determine at least one the Resources list, in each the Resources list, at least comprise the frequency domain resource needed for antenna port port1 of a user equipment (UE); For the UE Resources allocation list in community, and scheduling shares the UE of same the Resources list in different ACK/NACK feedback window.
This base station is by the process of processor, the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment is kept for according to system, determine at least one the Resources list, during for UE Resources allocation list in community, multiple UE can be allowed to share same the Resources list, to reduce PUCCH resource expense, simultaneously, in different ACK/NACK feedback window, scheduling shares the UE of same the Resources list, and then the situation avoiding the ACK/NACK feedback resources of different UEs to clash.
Further, in order to make the distance in each the Resources list between each frequency domain resource as far as possible large, and then embody channel selectivity gain as far as possible, the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment kept for by the processor of described base station according to system, determine at least one the Resources list, specifically comprise:
System is kept for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment, according to the grouping that puts in order of frequency domain resource, the group number of grouping is at least the minimum value needing the frequency domain resource comprised in each the Resources list;
Being divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determining at least one the Resources list.
Further, the processor of base station can realize being divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list in the following way, determines at least one the Resources list:
To the serial number from same numeral of the frequency domain resource in every group;
Be divided in same the Resources list arrange numbering identical frequency domain resource in each group, form at least one the Resources list, the frequency domain resource in each the Resources list is according to the arrangement that puts in order of grouping.
Preferentially distributed for making the PUCCH list with larger frequency domain interval, and then the distance between the frequency domain resource making different UEs distribute is tried one's best large, interference between the PUCCH resource of reduction different UEs, the processor of this base station is the UE Resources allocation list in community, specifically comprises:
To each the Resources list serial number;
According to the numbering of each the Resources list, again the Resources list is sorted by dichotomy;
For the Resources list after the UE in community successively distribution sort.
The PUCCH resource conflict of the ACK/NACK transmission of UE during in order to avoid descending scheduling as far as possible, the processor of described base station is UE in community the Resources list successively after distribution sort, specifically comprises:
Be preferably different UE and distribute different the Resources lists, and when UE number is greater than the Resources list number, allow different UE shared resource lists.
The UE sharing same the Resources list dispatched by the processor of described base station in different ACK/NACK feedback window, specifically comprises:
Determine the user equipment (UE) set participating in current downlink subframe scheduling, and determine the dispatching priority of each UE;
According to described dispatching priority order, for each UE, judge whether that there is the UE with current UE with same antenna port port1 resource distribution is scheduled in the ACK/NACK feedback window at the descending sub frame place of current scheduling, if existed, then in current downlink subframe, do not dispatch this UE, otherwise, this UE is dispatched.
The embodiment of the present invention provides uplink control channel resource distribution method in a kind of multiaerial system and base station, the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment is kept for according to system, determine at least one the Resources list, during for UE Resources allocation list in community, multiple UE can be allowed to share same the Resources list, to reduce PUCCH resource expense, simultaneously, in different ACK/NACK feedback window, scheduling shares the UE of same the Resources list, and then the situation avoiding the ACK/NACK feedback resources of different UEs to clash.
Accompanying drawing explanation
Uplink control channel resource distribution method flow chart in the multiaerial system that Fig. 1 provides for the embodiment of the present invention;
Uplink control channel resource in the multiaerial system that Fig. 2 provides for the embodiment of the present invention distributes schematic diagram;
The base station schematic diagram of Fig. 3 for providing for the embodiment of the present invention.
Embodiment
The embodiment of the present invention provides uplink control channel resource distribution method in a kind of multiaerial system and base station, the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment is kept for according to system, determine at least one the Resources list, during for UE Resources allocation list in community, multiple UE can be allowed to share same the Resources list, to reduce PUCCH resource expense, simultaneously, in different ACK/NACK feedback window, scheduling shares the UE of same the Resources list, and then the situation avoiding the ACK/NACK feedback resources of different UEs to clash.
As shown in Figure 1, the uplink control channel resource distribution method in the multiaerial system that the embodiment of the present invention provides, comprising:
Step S101, keep for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment according to system, determine at least one the Resources list, in each the Resources list, at least comprise the frequency domain resource needed for antenna port port1 of a user equipment (UE);
Step S102, be the UE Resources allocation list in community, and scheduling share the UE of same the Resources list in different ACK/NACK feedback window.
Due to the PUCCH resource configuration allowing different UE to share identical antenna port port1, so improve PUCCH resource utilization ratio.Simultaneously, for the UE that the PUCCH resource with identical antenna port port1 configures, by the cooperation of descending scheduling, avoid the ACK(Acknowledgement occurring these UE, confirm)/NACK(Negative Acknowledgement, Negative Acknowledgement) transmit PUCCH resource conflict situation.
The method is performed by base station, in specific execution mode, base station can be base transceiver station (BTS), Node B (Node B), the Node B (eNode B or eNB) of evolution, Home eNodeB (Home Node B or HNB), the Home eNodeB (Home eNode B or HeNB) of evolution, via node (Relay Node or RN), WAP (wireless access point) (AP), wireless router and similar device etc.Base station adopts single antenna or multiple antennas to realize covering the wireless signal of specific region, and these specific regions are called as community.This concept of community also usually refers to for the user terminal in this particular coverage provides the logic entity comprising base station software and hardware subsystem of service.A base station can associate a community, and community can also be divided into the community of sector shape, and now a base station can associate shape community, multiple sector.
Concrete, in order to embody channel selectivity gain as far as possible, the distance in each the Resources list between each frequency domain resource can be made as far as possible large, in step S101, the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment is kept for according to system, determine at least one the Resources list, specifically comprise:
System is kept for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment, according to the grouping that puts in order of frequency domain resource, the group number of grouping is at least the minimum value needing the frequency domain resource comprised in each the Resources list;
Being divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determining at least one the Resources list.
Wherein, the embodiment of the present invention provides a kind of and is divided into method in same the Resources list by often organizing the identical frequency domain resource of interior relative position more easily: be divided in same the Resources list by often organizing the identical frequency domain resource of interior relative position, determine at least one the Resources list, specifically comprise:
To the serial number from same numeral of the frequency domain resource in every group;
Be divided in same the Resources list arrange numbering identical frequency domain resource in each group, form at least one the Resources list, the frequency domain resource in each the Resources list is according to the arrangement that puts in order of grouping.
Preferentially distributed to make the PUCCH list with larger frequency domain interval, and then the distance between the frequency domain resource making different UEs distribute is tried one's best large, the allocation order of the Resources list can be determined further, carry out the distribution of the Resources list again, now, for the UE Resources allocation list in community, specifically comprise:
To each the Resources list serial number;
According to the numbering of each the Resources list, again the Resources list is sorted by dichotomy;
For the Resources list after the UE in community successively distribution sort.
The PUCCH resource conflict of the ACK/NACK transmission of UE during in order to avoid descending scheduling as far as possible, is the Resources list after the UE in community successively distribution sort, specifically comprises:
Be preferably different UE and distribute different the Resources lists, and when UE number is greater than the Resources list number, allow different UE shared resource lists.
Further, in step S102, in different ACK/NACK feedback window, scheduling shares the UE of same the Resources list, specifically comprises:
Determine the user equipment (UE) set participating in current downlink subframe scheduling, and determine the dispatching priority of each UE;
According to dispatching priority order, for each UE, judge whether that there is the UE with current UE with same antenna port port1 resource distribution is scheduled in the ACK/NACK feedback window at the descending sub frame place of current scheduling, if existed, then in current downlink subframe, do not dispatch this UE, otherwise, this UE is dispatched.
Concrete, the method that system reserves resource to the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment is as follows:
First following 4 OAM(Operation and Maintenance are determined, operation and maintenance) configuration parameter:
N total_UE_num: for sub-frame of uplink each in system needs the UE number carrying out ACK/NACK feedback;
η pUCCH_format1bcs: for UE is configured to the probability that PUCCH format 1b with channel selection carries out ACK/NACK feedback;
η pUCCH_2port: for UE is configured to the probability that 2 antenna ports carry out ACK/NACK feedback;
N uE_size: be the UE maximum number allowing the PUCCH resource of shared identical antenna port port1 to configure.The configuration of this parameter can direct influential system PUCCH resource expense, N uE_sizelarger, then system keeps for PUCCH format 1b with channel selection antenna port port1 frequency domain resource fewer, and then the probability that the PUCCH resource between increase different UEs is conflicted, between different UEs, PUCCH resource conflict needs to be avoided by scheduling.Can consider system PUCCH resource expense and and to scheduling influence degree to arrange this parameter.These parameters are configured according to network planning actual conditions by operator above.
Suppose that the descending sub frame number maximum comprised in the feedback window that TDD system frame structure configuration each sub-frame of uplink lower is corresponding is N subframe_MAX, then the PUCCH format 1b with channel selection of each use 2 antenna port is carried out to the UE of ACK/NACK transmission, needs for its configuration N subframe_MAXindividual PUCCH resource is transmitted for the PUCCH of antenna port port1.
According to above parameter, certainty annuity keeps for the PUCCH frequency domain resource index number of PUCCH format 1b with channel selection antenna port port1 to be:
The PUCCH frequency domain resource index number of PUCCH format 1b with channel selection antenna port port1 is kept for according to system reserved individual continuous print PUCCH (1) frequency domain resource index is as the PUCCH frequency domain resource set keeping for PUCCH format 1b with channel selection antenna port port1.
When carrying out frequency domain resource and distributing, then according to the method that the embodiment of the present invention provides, first determine at least one the Resources list, then carry out frequency domain resource distribution, concrete, the method for carrying out frequency domain resource distribution comprises:
Step 1: the PUCCH frequency domain resource index set keeping for PUCCH format 1b with channel selection antenna port port1 according to system, the PUCCH frequency domain resource index that these are available divides into groups, form multiple PUCCH resource list, wherein the resource distribution of the corresponding a kind of PUCCH format 1b with channel selection antenna port port1 of each PUCCH resource list.
In order to embody the effect of channel selectivity, adopting with the following method, making, between the PUCCH frequency domain resource index that comprises in each PUCCH resource list of formation, there is interval large as far as possible:
Step 1.1: keep for PUCCH format 1b with channel selection antenna port port1's according to system these frequency domain resource indexes are equally divided into N based on continuity by individual continuous print PUCCH frequency domain resource index subframe_MAXgroup, makes often group comprise continuous print PUCCH frequency domain resource index, then the number of the PUCCH resource list formed after the PUCCH frequency domain resource index number that often group comprises is resource division that is:
Step 1.2: according to the group result of step 1.1 to available PUCCH frequency domain resource index, to the PUCCH frequency domain resource index serial number from 0 in each grouping, determine that relative numbering i(that each PUCCH frequency domain resource index divides into groups at its place wherein thus then N will be positioned at subframe_MAXindividual different grouping and the identical N of relative numbering in correspondence grouping subframe_MAXindividual PUCCH frequency domain resource index takes out respectively, by this identical for the relative numbering in each grouping of taking-up N subframe_MAXorder arrangement formation PUCCH resource list that individual PUCCH frequency domain resource index divides into groups according to its place, like this, in each PUCCH resource list, the interval of adjacent two frequency domain resource indexes is formed altogether in such a manner individual PUCCH resource list.
Step 2: the PUCCH resource list formed for step 1, determines this the allocation order of individual PUCCH resource list.
Interference between the PUCCH transmission reducing different UEs to try one's best, adopt with the following method, the PUCCH list with larger frequency domain interval is preferentially distributed:
Step 2.1: first step 1 is formed individual PUCCH resource list serial number from 0, determines the numbering j(of each PUCCH resource list wherein thus, wherein the sequence number j of each PUCCH resource list be that each PUCCH frequency domain resource index of comprising in this PUCCH resource list determines in step 1.2 its relative numbering i in a packet.
Step 2.2: step 1 is formed individual PUCCH resource list, determines the allocation order of these PUCCH resource lists according to the mode of dichotomy.In order to realize the mode of above-mentioned dichotomy, numbering corresponding for PUCCH resource list can be converted into binary system, then carry out bit inversion, then be converted into the decimal system.
Step 3: the PUCCH format 1b with channel selection for employing 2 antenna port carries out the UE of ACK/NACK transmission, determines the PUCCH resource configuration of each UE antenna port port1.
Apply for that the order of PUCCH format 1b with channel selection antenna port port1 resource distribution determines PUCCH frequency domain index the Resources list that each UE uses according to UE.Although each PUCCH frequency domain index list can support maximum N uE_sizeindividual UE carries out multiplexing, but the interference between the PUCCH transmission reducing different UEs to try one's best, reduce simultaneously as far as possible and occur that the probability of conflict appears in the PUCCH resource of different UEs, can pay the utmost attention to as different UE configures different PUCCH resource lists, then consider that different UE shares identical PUCCH resource list configuration.That is: for index combination (n pUCCH_1bcs_list, n uE) (wherein: n pUCCH_1bcs_listrepresent the distribution priority sequence number of the PUCCH resource list that step 2.2 is determined, and n uErepresent the UE number that current PUCCH resource list has been supported, and 0≤n uE≤ N uE_size), the order of its traversal is the n that first adds up pUCCH_1bcs_list, resource packet index n to be done pUCCH_1bcs_listonce traversal after, then by n uEcumulative, and then with the n after renewal uEtraversal resource packet index n pUCCH_1bcs_list, by that analogy, until complete the PUCCH format 1b with channel selection antenna port port1 resource distribution to all UE, or traveled through all PUCCH resource configurations.
Below by an embodiment, the implementation process of the resource distribution of PUCCH format 1b with channel selection antenna port port1 is described:
Suppose that LTE-A TDD system adopts the configuring condition of frame structure configuration 2, OAM to relevant parameter as follows: in system, each sub-frame of uplink needs to carry out the UE number N of ACK/NACK feedback total_UE_numbe that 20, UE adopts PUCCH format 1b with channel selection to carry out the probability η of ACK/NACK feedback pUCCH_format1bcsbe that 0.5, UE adopts 2 antenna ports to carry out the probability η of ACK/NACK feedback pUCCH_2portbe 1, one group of antenna port port1 PUCCH resource configuration can support maximum N uE_size=3 UE are multiplexing.
Step 1: certainty annuity keeps for the PUCCH frequency domain resource index set of PUCCH format 1b with channel selection antenna port port1.
The PUCCH frequency domain resource index number of PUCCH format 1b with channel selection antenna port port1 is kept for be according to above-mentioned assumed condition certainty annuity: then reserved 16 continuous print PUCCH (1) the frequency domain resource indexes of system are as the PUCCH frequency domain resource set of PUCCH format 1b with channel selection antenna port port1, suppose that 16 reserved continuous print PUCCH (1) frequency domain resource indexes are 0 ~ 15, as shown in Figure 2, each lattice represents PUCCH (1) frequency domain resource index.
Step 2: by system can PUCCH frequency domain resource index divide into groups, form multiple PUCCH resource list.
Step 2.1: for tdd frame structural allocation 2, the UE that the PUCCH format 1b with channel selection of each employing 2 antenna port carries out ACK/NACK transmission needs the PUCCH resource for its configuration 4 antenna port port1, according to 16 the continuous print PUCCH frequency domain resource indexes keeping for PUCCH format 1b with channel selection antenna port port1 that step 1 is determined, these frequency domain resource indexes are equally divided into 4 groups based on continuity, as shown in Figure 2: the 1st group comprises PUCCH frequency domain resource index 0 ~ 3, 2nd group comprises PUCCH frequency domain resource index 4 ~ 7, 3rd group comprises PUCCH frequency domain resource index 8 ~ 11, 4th group comprises PUCCH frequency domain resource index 12 ~ 15.
Step 2.2: according to the group result of step 2.1 to available PUCCH frequency domain resource index, to the PUCCH frequency domain resource index serial number from 0 in each grouping, determine relative numbering i(wherein 0≤i<4 that each PUCCH frequency domain resource index divides into groups at its place thus), then will be arranged in 4 different grouping and take out respectively at 4 PUCCH frequency domain resource indexes (4 grids that namely Fig. 2 Fill Color is identical) that the relative numbering of correspondence grouping is identical, by order arrangement formation PUCCH resource list that these identical for the relative numbering in each grouping of taking out 4 PUCCH frequency domain resource indexes divide into groups according to its place at every turn, form 4 PUCCH resource lists altogether.
Step 3: the allocation order determining each PUCCH resource list.
Step 3.1: first to 4 PUCCH resource lists serial number from 0 that step 2 is formed, the sequence number of wherein each PUCCH resource list be that each PUCCH frequency domain resource index of comprising in this PUCCH resource list determines in step 2.2 its relative numbering in a packet.
Step 3.2: for PUCCH resource list 0 ~ 3, determines the allocation order of these PUCCH resource lists according to the mode of dichotomy as shown in table 7.It can thus be appreciated that the distribution priority orders of these 4 PUCCH resource lists is: PUCCH resource list 0 → PUCCH resource list 2 → PUCCH resource list 1 → PUCCH resource list 3.
Table 7PUCCH the Resources list allocation order
PUCCH resource numbering of table Binary form Bit is inverted The decimal system after bit is inverted
0 00 00 0
1 01 10 2
2 10 01 1
3 11 11 3
Step 4: the PUCCH format 1b with channel selection for employing 2 antenna port carries out the UE of ACK/NACK transmission, determines the PUCCH resource configuration of each UE antenna port port1.
Suppose in current area, have 10 UE to adopt the PUCCH format 1b with channel selection of 2 antenna ports to carry out ACK/NACK transmission, apply for that these UE are designated as UE1 ~ UE10 by the order of PUCCH format 1b with channel selection antenna port port1 resource distribution respectively according to UE, be followed successively by these 10 UE and distribute PUCCH resource list.During distribution, pay the utmost attention to as different UE configures different PUCCH resource lists, then consider that different UE shares identical PUCCH resource list configuration.Determine thus, the PUCCH resource configuring condition of the antenna port port1 of these 10 UE is: for UE1, UE5 and UE9 configure PUCCH resource list 0, for UE2, UE6 and UE10 configure PUCCH resource list 2, for UE3 and UE7 configures PUCCH resource list 1, for UE4 and UE8 configures PUCCH resource list 3, as shown in Figure 2.
When using method provided by the invention to carry out the resource distribution of PUCCH format 1b with channel selection antenna port port1, share the situation of PUCCH (1) resource distribution of identical antenna port port1 owing to there is different UE, now may occur the problem of the ACK/NACK feedback resources conflict of different UEs.For avoiding the generation of above-mentioned situation, for the UE of PUCCH (1) resource distribution with identical antenna port port1, it is not allowed to be scheduled simultaneously in same ACK/NACK feedback window.
For descending scheduling, be usually divided into UE prioritization and the large step of Resourse Distribute two.Based on above-mentioned thinking, the descending scheduling of improvement is according to following flow performing:
Step 1: for the descending sub frame of each scheduling, determines the UE set participating in this subframe scheduling, and completes the prioritization to these UE, thus determines the dispatching priority order of each UE;
Step 2: the UE taking out head of the queue from UE priority query, judges the PUCCH resource configuration of the descending ACK/NACK transmission being used for this UE:
If this UE is configured to 2 antenna ports of PUCCH format 1b with channel selection, and in community, there is the UE configured with the PUCCH resource that this UE has identical antenna port port1, then judge further:
A1) in the UE that the PUCCH resource having identical antenna port port1 with current UE in community configures, if there is UE to be scheduled in the ACK/NACK feedback window at the descending sub frame place of current scheduling, then this subframe can not dispatch current UE, continues to perform step 3;
A2) if the UE configured for the PUCCH resource that in community, there is with current UE identical antenna port port1, all be not scheduled in the ACK/NACK feedback window at the descending sub frame place of current scheduling, or, the UE that the PUCCH resource that has identical antenna port port1 with current UE configures is there is not in community, then complete the Resourse Distribute to current UE based on existing method, perform step 3;
Otherwise, complete the Resourse Distribute to this UE based on existing method, perform step 3;
Step 3: upgrade system available resources, delete current UE from UE priority query, if UE priority query is for empty and current system also has available resources, then continues to perform step 2; Otherwise this subframe scheduling terminates, exit flow process.
Below by an embodiment, the implementation process of descending scheduling is described.
Suppose that LTE-A TDD system adopts frame structure configuration 1,6 UE(are had to be designated as UE1 ~ UE6 respectively in system), these 6 UE all adopt the PUCCH format 1b with channel selection of 2 antenna ports to carry out the UE of ACK/NACK transmission, suppose that PUCCH (1) the resource distribution situation of the antenna port port1 of these 6 UE is: UE1 and UE4 is configured with identical PUCCH (1) the Resources list 1 simultaneously; UE2 and UE5 is configured with identical PUCCH (1) the Resources list 2; UE3 and UE6 is configured with identical PUCCH (1) the Resources list 3.
The sequential relationship fed back from PDSCH transmission and the descending ACK/NACK of the TDD system shown in table: for tdd frame structural allocation 1, the PDSCH transmission of descending sub frame 0 and 1 carries out ACK/NACK feedback at the sub-frame of uplink 7 of same radio frames; The PDSCH transmission of descending sub frame 4 carries out ACK/NACK feedback at the sub-frame of uplink 8 of same radio frames; The PDSCH transmission of descending sub frame 5 and 6 carries out ACK/NACK feedback at the sub-frame of uplink 2 of next radio frames; The PDSCH transmission of descending sub frame 9 carries out ACK/NACK feedback at the sub-frame of uplink 3 of next radio frames.Therefore, descending sub frame 0 and 1 forms a feedback window; The corresponding feedback window of descending sub frame 4; Descending sub frame 5 and 6 forms a feedback window; The corresponding feedback window of descending sub frame 9.
The scheduling process of descending sub frame 0 and 1 is described below respectively.Descending sub frame 4,5 adopts the dispatching method identical with descending sub frame 0 with 9; The dispatching method that the employing of descending sub frame 6 is identical with descending sub frame 1.
First the scheduling to descending sub frame 0 is performed:
Step 1.1: determine that the UE set participating in descending sub frame 0 scheduling is UE1, UE2 and UE4 based on existing method, determines that the dispatching priority order of these 3 UE is UE1>UE2>UE4 simultaneously;
Step 1.2: the UE1 taking out head of the queue from the UE priority query that step 1.1 is determined, due to UE1 be current downlink subframe 0 correspondence feedback window in first UE be scheduled, so UE1 can be dispatched in current downlink subframe 0, complete the Resourse Distribute to UE1 based on existing method.Renewal system available resources, delete UE1 simultaneously from UE priority query;
Step 1.3: the UE2 taking out head of the queue from UE priority query, because namely UE2 and the feedback window at current downlink subframe 0 place have obtained the UE(that dispatches: UE1) be configured with different PUCCH (1) the Resources lists, UE2 and these UE(are namely: ACK/NCAK UE1) transmits the situation that PUCCH resource can not occur and conflict, therefore can dispatch UE2 in current downlink subframe 0, complete the Resourse Distribute to UE2 based on existing method.Renewal system available resources, delete UE2 simultaneously from UE priority query;
Step 1.4: the UE4 taking out head of the queue from UE priority query, because UE4 and the UE2 that the feedback window at current downlink subframe 0 place has obtained dispatching are configured with identical PUCCH (1) the Resources list, the situation of PUCCH resource conflict may be there is in the ACK/NCAK transmission of UE4 and UE2, therefore do not dispatch UE4 in current downlink subframe 0, from UE priority query, delete UE4;
Step 1.5: the UE priority query of current downlink subframe 0 is empty, the finishing scheduling of current downlink subframe 0.
Following execution is to the scheduling of descending sub frame 1:
Step 2.1: determine that the UE set participating in descending sub frame 1 scheduling is UE2, UE5 and UE6 based on existing method, determines that the dispatching priority order of these 3 UE is UE2>UE5>UE6 simultaneously;
Step 2.2: the UE2 taking out head of the queue from the UE priority query that step 2.1 is determined, because UE2 has obtained dispatching (that is: UE2 is scheduled at descending sub frame 0) in the feedback window at current downlink subframe 1 place, so UE2 can be dispatched in current downlink subframe 1, complete the Resourse Distribute to UE2 based on existing method.Renewal system available resources, delete UE2 simultaneously from UE priority query;
Step 2.3: the UE5 taking out head of the queue from UE priority query, because UE5 and the UE2 that the feedback window at current downlink subframe 1 place has obtained dispatching are configured with identical PUCCH (1) the Resources list, the situation of PUCCH resource conflict may be there is in the ACK/NCAK transmission of UE5 and UE2, therefore do not dispatch UE5 in current downlink subframe 1, from UE priority query, delete UE5;
Step 2.4: the UE6 taking out head of the queue from UE priority query, because namely UE6 and the feedback window at current downlink subframe 1 place have obtained the UE(that dispatches: UE1 and UE2) be all configured with different PUCCH (1) the Resources lists, UE6 transmits the situation that PUCCH resource can not occur and conflict with the ACK/NCAK of these scheduled UE, therefore can dispatch UE6 in current downlink subframe 1, complete the Resourse Distribute to UE6 based on existing method.Renewal system available resources, delete UE6 simultaneously from UE priority query;
Step 2.5: the UE priority query of current downlink subframe 1 is empty, the finishing scheduling of current downlink subframe 1.
Visible, the method of the resource distribution of the PUCCH format 1b with channel selection antenna port port1 that the embodiment of the present invention proposes allows different UE to share PUCCH (1) resource distribution of identical antenna port port1, simultaneously for the UE of PUCCH (1) resource distribution with identical antenna port port1, by the cooperation of descending scheduling, avoid occurring that the situation of PUCCH resource conflict occurs in the ACK/NACK transmission of these UE.And then can effectively improve PUCCH resource utilization ratio, save the PUCCH resource expense of system.
The embodiment of the present invention is also corresponding provides a kind of base station, as shown in Figure 3, comprising:
Determining unit 301, for keeping for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment according to system, determine at least one the Resources list, in each the Resources list, at least comprise the frequency domain resource needed for antenna port port1 of a user equipment (UE);
Distribute and scheduling unit 302, for be the UE Resources allocation list in community, and in different ACK/NACK feedback window the UE of the shared same the Resources list of scheduling.
Wherein, determining unit 301 specifically for:
System is kept for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment, according to the grouping that puts in order of frequency domain resource, the group number of grouping is at least the minimum value needing the frequency domain resource comprised in each the Resources list;
Being divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determining at least one the Resources list.
Determining unit 301 is divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determines at least one the Resources list, specifically comprises:
To the serial number from same numeral of the frequency domain resource in every group;
Be divided in same the Resources list arrange numbering identical frequency domain resource in each group, form at least one the Resources list, the frequency domain resource in each the Resources list is according to the arrangement that puts in order of grouping.
Distribution and scheduling unit 302 are the UE Resources allocation list in community, specifically comprise:
To each the Resources list serial number;
According to the numbering of each the Resources list, again the Resources list is sorted by dichotomy;
For the Resources list after the UE in community successively distribution sort.
To distribute and scheduling unit 302 is UE in community the Resources list successively after distribution sort, specifically comprise:
Be preferably different UE and distribute different the Resources lists, and when UE number is greater than the Resources list number, allow different UE shared resource lists.
Distribution and scheduling unit 302 dispatch the UE sharing same the Resources list in different ACK/NACK feedback window, specifically comprise:
Determine the user equipment (UE) set participating in current downlink subframe scheduling, and determine the dispatching priority of each UE;
According to dispatching priority order, for each UE, judge whether that there is the UE with current UE with same antenna port port1 resource distribution is scheduled in the ACK/NACK feedback window at the descending sub frame place of current scheduling, if existed, then in current downlink subframe, do not dispatch this UE, otherwise, this UE is dispatched.
The embodiment of the present invention also provides a kind of base station, and this base station comprises:
Processor, be configured to the frequency domain resource keeping for the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment according to system, determine at least one the Resources list, in each the Resources list, at least comprise the frequency domain resource needed for antenna port port1 of a user equipment (UE); For the UE Resources allocation list in community, and scheduling shares the UE of same the Resources list in different ACK/NACK feedback window.
When this base station can realize Resourse Distribute and scheduling by transceiver and the Signalling exchange of terminal.
This base station is by the process of processor, the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment is kept for according to system, determine at least one the Resources list, during for UE Resources allocation list in community, multiple UE can be allowed to share same the Resources list, to reduce PUCCH resource expense, simultaneously, in different ACK/NACK feedback window, scheduling shares the UE of same the Resources list, and then the situation avoiding the ACK/NACK feedback resources of different UEs to clash.
Further, in order to make the distance in each the Resources list between each frequency domain resource as far as possible large, and then embody channel selectivity gain as far as possible, the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment kept for by the processor of described base station according to system, determine at least one the Resources list, specifically comprise:
System is kept for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment, according to the grouping that puts in order of frequency domain resource, the group number of grouping is at least the minimum value needing the frequency domain resource comprised in each the Resources list;
Being divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determining at least one the Resources list.
Further, the processor of base station can realize being divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list in the following way, determines at least one the Resources list:
To the serial number from same numeral of the frequency domain resource in every group;
Be divided in same the Resources list arrange numbering identical frequency domain resource in each group, form at least one the Resources list, the frequency domain resource in each the Resources list is according to the arrangement that puts in order of grouping.
Preferentially distributed for making the PUCCH list with larger frequency domain interval, and then the distance between the frequency domain resource making different UEs distribute is tried one's best large, interference between the PUCCH resource of minimizing different UEs, the processor of this base station is the UE Resources allocation list in community, specifically comprises:
To each the Resources list serial number;
According to the numbering of each the Resources list, again the Resources list is sorted by dichotomy;
For the Resources list after the UE in community successively distribution sort.
The PUCCH resource conflict of the ACK/NACK transmission of UE during in order to avoid descending scheduling as far as possible, the processor of described base station is UE in community the Resources list successively after distribution sort, specifically comprises:
Be preferably different UE and distribute different the Resources lists, and when UE number is greater than the Resources list number, allow different UE shared resource lists.
The UE sharing same the Resources list dispatched by the processor of described base station in different ACK/NACK feedback window, specifically comprises:
Determine the user equipment (UE) set participating in current downlink subframe scheduling, and determine the dispatching priority of each UE;
According to described dispatching priority order, for each UE, judge whether that there is the UE with current UE with same antenna port port1 resource distribution is scheduled in the ACK/NACK feedback window at the descending sub frame place of current scheduling, if existed, then in current downlink subframe, do not dispatch this UE, otherwise, this UE is dispatched.
The embodiment of the present invention provides uplink control channel resource distribution method in a kind of multiaerial system and base station, the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment is kept for according to system, determine at least one the Resources list, during for UE Resources allocation list in community, multiple UE can be allowed to share same the Resources list, to reduce PUCCH resource expense, simultaneously, in different ACK/NACK feedback window, scheduling shares the UE of same the Resources list, and then the situation avoiding the ACK/NACK feedback resources of different UEs to clash.
Those skilled in the art should understand, embodiments of the invention can be provided as method, system or computer program.Therefore, the present invention can adopt the form of complete hardware embodiment, completely software implementation or the embodiment in conjunction with software and hardware aspect.And the present invention can adopt in one or more form wherein including the upper computer program implemented of computer-usable storage medium (including but not limited to magnetic disc store, CD-ROM, optical memory etc.) of computer usable program code.
The present invention describes with reference to according to the flow chart of the method for the embodiment of the present invention, equipment (system) and computer program and/or block diagram.Should understand can by the combination of the flow process in each flow process in computer program instructions realization flow figure and/or block diagram and/or square frame and flow chart and/or block diagram and/or square frame.These computer program instructions can being provided to the processor of all-purpose computer, special-purpose computer, Embedded Processor or other programmable data processing device to produce a machine, making the instruction performed by the processor of computer or other programmable data processing device produce device for realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be stored in can in the computer-readable memory that works in a specific way of vectoring computer or other programmable data processing device, the instruction making to be stored in this computer-readable memory produces the manufacture comprising command device, and this command device realizes the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, make on computer or other programmable devices, to perform sequence of operations step to produce computer implemented process, thus the instruction performed on computer or other programmable devices is provided for the step realizing the function of specifying in flow chart flow process or multiple flow process and/or block diagram square frame or multiple square frame.
Although describe the preferred embodiments of the present invention, those skilled in the art once obtain the basic creative concept of cicada, then can make other change and amendment to these embodiments.So claims are intended to be interpreted as comprising preferred embodiment and falling into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various change and modification to the present invention and not depart from the spirit and scope of the present invention.Like this, if these amendments of the present invention and modification belong within the scope of the claims in the present invention and equivalent technologies thereof, then the present invention is also intended to comprise these change and modification.

Claims (12)

1. the uplink control channel resource distribution method in multiaerial system, is characterized in that, comprising:
The frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment is kept for according to system, determine at least one the Resources list, in each the Resources list, at least comprise the frequency domain resource needed for antenna port port1 of a user equipment (UE);
For the UE Resources allocation list in community, and scheduling shares the UE of same the Resources list in different ACK/NACK feedback window.
2. the method for claim 1, is characterized in that, the described frequency domain resource keeping for the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment according to system, determines at least one the Resources list, specifically comprises:
System is kept for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment, according to the grouping that puts in order of frequency domain resource, the group number of grouping is at least the minimum value needing the frequency domain resource comprised in each the Resources list;
Being divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determining at least one the Resources list.
3. method as claimed in claim 2, is characterized in that, is describedly divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determines at least one the Resources list, specifically comprises:
To the serial number from same numeral of the frequency domain resource in every group;
Be divided in same the Resources list arrange numbering identical frequency domain resource in each group, form at least one the Resources list, the frequency domain resource in each the Resources list is according to the arrangement that puts in order of grouping.
4. the method for claim 1, is characterized in that, described is UE Resources allocation list in community, specifically comprises:
To each the Resources list serial number;
According to the numbering of each the Resources list, again the Resources list is sorted by dichotomy;
For the Resources list after the UE in community successively distribution sort.
5. method as claimed in claim 4, is characterized in that, described is UE in community the Resources list successively after distribution sort, specifically comprises:
Be preferably different UE and distribute different the Resources lists, and when UE number is greater than the Resources list number, allow different UE shared resource lists.
6. the method for claim 1, is characterized in that, the UE of described shared same the Resources list of scheduling in different ACK/NACK feedback window, specifically comprises:
Determine the user equipment (UE) set participating in current downlink subframe scheduling, and determine the dispatching priority of each UE;
According to described dispatching priority order, for each UE, judge whether that there is the UE with current UE with same antenna port port1 resource distribution is scheduled in the ACK/NACK feedback window at the descending sub frame place of current scheduling, if existed, then in current downlink subframe, do not dispatch this UE, otherwise, this UE is dispatched.
7. a base station, is characterized in that, comprising:
Determining unit, for keeping for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment according to system, determine at least one the Resources list, in each the Resources list, at least comprise the frequency domain resource needed for antenna port port1 of a user equipment (UE);
Distribute and scheduling unit, for be the UE Resources allocation list in community, and in different ACK/NACK feedback window the UE of the shared same the Resources list of scheduling.
8. base station as claimed in claim 7, is characterized in that, described determining unit specifically for:
System is kept for the frequency domain resource of the Physical Uplink Control Channel form 1b antenna port port1 based on Channel assignment, according to the grouping that puts in order of frequency domain resource, the group number of grouping is at least the minimum value needing the frequency domain resource comprised in each the Resources list;
Being divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determining at least one the Resources list.
9. base station as claimed in claim 8, it is characterized in that, described determining unit is divided into often organizing the identical frequency domain resource of interior relative position in same the Resources list, determines at least one the Resources list, specifically comprises:
To the serial number from same numeral of the frequency domain resource in every group;
Be divided in same the Resources list arrange numbering identical frequency domain resource in each group, form at least one the Resources list, the frequency domain resource in each the Resources list is according to the arrangement that puts in order of grouping.
10. base station as claimed in claim 7, it is characterized in that, described distribution and scheduling unit are the UE Resources allocation list in community, specifically comprise:
To each the Resources list serial number;
According to the numbering of each the Resources list, again the Resources list is sorted by dichotomy;
For the Resources list after the UE in community successively distribution sort.
11. base stations as claimed in claim 10, is characterized in that, described distribution and scheduling unit are UE in community the Resources list successively after distribution sort, specifically comprise:
Be preferably different UE and distribute different the Resources lists, and when UE number is greater than the Resources list number, allow different UE shared resource lists.
12. base stations as claimed in claim 7, is characterized in that, described distribution and scheduling unit dispatch the UE sharing same the Resources list in different ACK/NACK feedback window, specifically comprise:
Determine the user equipment (UE) set participating in current downlink subframe scheduling, and determine the dispatching priority of each UE;
According to described dispatching priority order, for each UE, judge whether that there is the UE with current UE with same antenna port port1 resource distribution is scheduled in the ACK/NACK feedback window at the descending sub frame place of current scheduling, if existed, then in current downlink subframe, do not dispatch this UE, otherwise, this UE is dispatched.
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