CN105611638A - Terminal scheduling method and base station - Google Patents

Terminal scheduling method and base station Download PDF

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Publication number
CN105611638A
CN105611638A CN201511031706.5A CN201511031706A CN105611638A CN 105611638 A CN105611638 A CN 105611638A CN 201511031706 A CN201511031706 A CN 201511031706A CN 105611638 A CN105611638 A CN 105611638A
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China
Prior art keywords
terminal
target terminal
pucch
pucch resource
priority
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CN201511031706.5A
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CN105611638B (en
Inventor
刘震
廖礼宇
王宁
李馨
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Guangzhou Jingxin Communication Technology Co ltd
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Comba Telecom Technology Guangzhou Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/50—Allocation or scheduling criteria for wireless resources
    • H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L5/00—Arrangements affording multiple use of the transmission path
    • H04L5/003—Arrangements for allocating sub-channels of the transmission path
    • H04L5/0053—Allocation of signaling, i.e. of overhead other than pilot signals

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the invention discloses a terminal scheduling method and a base station. In the embodiment of the invention, terminals in the scheduling queue corresponding to a kth downlink sub-frame are obtained; the PUCCH (Physical Uplink Control Channel) resource list configured to each terminal is obtained; when determining that the number of the terminals with the same PUCCH resource lists is more than a first threshold value, the terminals with the same PUCCH resource lists are determined as object terminals; and the scheduling terminals corresponding to to-be-allocated PUCCH resources on the kth downlink sub-frame are determined according to the comprehensive scheduling priority of each object terminal. In the embodiment of the invention, the comprehensive scheduling priority of each object terminal is obtained according to the scheduling priority of each object terminal and according to whether each object terminal is allocated with the PUCCH resource under the condition of generating a PUCCH resource conflict; therefore, the problem that some terminals cannot be scheduled for a long time because of generating PUCCH resource conflicts can be effectively avoided.

Description

A kind of method of dispatch terminal and base station
Technical field
The present invention relates to communication technical field, relate in particular to a kind of method and base station of dispatch terminal.
Background technology
In LTE-A (LongTermEvolution-Advanced) the protocol version evolution of supporting carrier aggregationIn, for supporting the ACK/NACK feedback information of multiple one-tenth sub-carriers (ComponentCarrier), R10Two kinds of newly-increased PUCCH (PhysicalUplinkControlChannel, physical uplinks in agreement, are introducedLink control channel) channel format: the PUCCH form 1b (Format1bwithchannel selecting with channel, and PUCCH form 3 (Format3) selection).
Base station is that the PUCCH form 1b selecting with channel and form 3 resources of terminal distribution are passed through by heightLayer RRC transmitting signaling downwards be to terminal, wherein, and the 1b resource of selecting with channel of high-rise RRC transmitting signaling downwardsBe made up of two the Resources lists, each list comprises 4 1b resources of selecting with channel; PUCCH form3 resources are made up of a Resources list, and list comprises 4 PUCCH form 3 resources. If takenThe terminal number that PUCCH resource is identical exceedes 4, and these terminals are carried out at identical sub-frame of uplink simultaneouslyACK NACK feedback, can produce PUCCH resource contention. On the other hand, along with two kinds newThe introducing of PUCCH form, system need additionally reserve up RB resource for PUCCH, for ensureingEnough RB use to uplink data channels, generally only reserve limited PUCCHRB resource, and this just leadsCause the terminal that takies identical PUCCH resource and carried out ACK/NACK feedback at same sub-frame of uplink, madeBecome PUCCH resource contention probability greatly to increase.
In prior art, for avoiding PUCCH resource contention, generally take to limit the mode of descending scheduling,According to dispatching priority, in the time there is PUCCH resource contention, the preferentially quilt of terminal that dispatching priority is highScheduling, and the low terminal of dispatching priority can not be dispatched. As shown in Figure 1, for occurring in prior artSource scheduling mode when PUCCH resource contention, terminal 0 is used identical PUCCH money with terminal 1Source, but the dispatching priority of terminal 0 is higher than terminal 1, according to HARQ (HybridAutomaticRepeatReQuest, mixed automatic retransfer request) the ascending-descending subframes corresponding relation of feedback, descending sub frame 0,1 is equalCorresponding sub-frame of uplink 7, due to terminal 0 and the PUCCH resource contention of terminal 1, the simultaneously tune of terminal 0Degree priority is higher than terminal 1, and terminal 0 is dispatched at descending sub frame 0, and terminal 1 can not be dispatched.If the dispatching priority of terminal 1 is lower, based on above-mentioned scheduling strategy, terminal 0 will be due to PUCCH occurringResource contention and can not get for a long time scheduling.
To sum up, need at present a kind of method of dispatch terminal badly, solve owing to there is PUCCH resource contentionThe problem that causes some terminal cannot be scheduled for a long time.
Summary of the invention
The embodiment of the present invention provides a kind of method and base station of dispatch terminal, solves due to the punching of PUCCH resourceThe problem of dashing forward and cause some terminal cannot be scheduled for a long time.
The method of a kind of dispatch terminal that the embodiment of the present invention provides, comprising:
Obtain the terminal in the scheduling queue that k descending sub frame is corresponding and thing that described in each, terminal is configuredReason uplink control channel PUCCH the Resources list;
The number of determining the terminal that described PUCCH the Resources list is identical is greater than in the situation of first threshold, willThe identical terminal of described PUCCH the Resources list is defined as target terminal; Described first threshold be according to described inThe number of the PUCCH resource to be allocated in PUCCH the Resources list is determined; Described PUCCH to be allocatedResource refers to the mixed automatic retransfer request of k descending sub frame described in described PUCCH the Resources listPUCCH resource outside the PUCCH resource of distributing on the modulated degree descending sub frame in HARQ feedback window;
According to the dispatching priority of target terminal described in each and described in each target terminal occurIn the situation of PUCCH resource contention, whether be assigned with described PUCCH resource, obtain target described in eachThe integrated dispatch priority of terminal;
According to the integrated dispatch priority of target terminal described in each, determine institute on described k descending sub frameState dispatch terminal corresponding to PUCCH resource to be allocated.
Preferably, described according to the dispatching priority of target terminal described in each and target terminal described in eachIn the situation that there is PUCCH resource contention, whether be assigned with described PUCCH resource, obtain each instituteThe integrated dispatch priority of stating target terminal, comprising:
Described in whether being assigned with in the situation that there is PUCCH resource contention according to target terminal described in eachPUCCH resource, obtains the PUCCH resource contention probability parameter of target terminal described in each;
PUCCH resource according to the dispatching priority of target terminal described in each with target terminal described in eachCollision probability parameter, obtains the integrated dispatch priority of target terminal described in each;
Obtain the PUCCH resource contention probability parameter of i target terminal by following formula:
p 2 ( i ) = pucchOccupy i pucchConflict i
Wherein, pucchConflictiBe the number of times that PUCCH resource contention occurs i target terminal,pucchOccupyiBe that i target terminal is not assigned with PUCCH in the situation that there is PUCCH resource contentionThe number of times of resource.
Preferably, described according to target terminal described in the dispatching priority of target terminal described in each and eachPUCCH resource contention probability parameter, obtains the integrated dispatch priority of target terminal described in each, comprising:
Determine the integrated dispatch priority of i target terminal by following formula:
P(i)＝w1*p1(i)+w2*p2(i)
Wherein, the integrated dispatch priority of P (i) i target terminal; p1(i) be the dispatching priority of i terminalParameter, p2(i) be the PUCCH resource contention probability parameter of i terminal, w1、w2For weight, and w1+w2＝1；
Obtain the scheduling priority parameter of described i target terminal by following formula:
p 1 ( i ) = p i - p min p max - p m i n
Wherein, piBe the dispatching priority of i target terminal, pmaxAnd pminBe respectively described in each target eventuallyMaximum and the minimum of a value of the dispatching priority of end.
Preferably, the PUCCH resource that described target terminal is configured is the PUCCH lattice of selecting with channelFormula 1b;
Described according to the integrated dispatch priority of target terminal described in each, determine at described k descending sub frameAfter the dispatch terminal of scheduling, also comprise:
By the physical downlink control channel PDCCH on main carrier to except described PUCCH resource to be allocatedTarget terminal beyond corresponding dispatch terminal carries out Physical Downlink Shared Channel PDSCH scheduling, wherein,Described PDSCH is positioned at main carrier and/or auxiliary carrier wave.
Preferably, the PUCCH resource that described target terminal is configured is PUCCH form 3;
Described according to the integrated dispatch priority of target terminal described in each, determine at described k descending sub frameAfter the dispatch terminal of scheduling, also comprise:
By the PDCCH on main carrier to except dispatch terminal corresponding to described PUCCH resource to be allocated withOuter target terminal carries out Physical Downlink Shared Channel PDSCH scheduling, and described PDSCH is positioned at main carryingRipple.
The embodiment of the present invention provides a kind of base station, and this base station comprises:
Acquisition module, for obtaining described in the terminal of the scheduling queue that k descending sub frame is corresponding and eachPUCCH the Resources list that terminal is configured;
Determination module, is greater than the first threshold for the number of determining the terminal that described PUCCH the Resources list is identicalIn the situation of value, the identical terminal of described PUCCH the Resources list is defined as to target terminal; Described firstThreshold value is to determine according to the number of the PUCCH resource to be allocated in described PUCCH the Resources list; InstituteState PUCCH resource to be allocated and refer to k descending sub frame described in described PUCCH the Resources listPUCCH resource outside the PUCCH resource of distributing on the modulated degree descending sub frame in HARQ feedback window;
Determine integrated dispatch priority block, for according to the dispatching priority of target terminal described in each andDescribed in each, whether target terminal is assigned with described PUCCH in the situation that there is PUCCH resource contentionResource, obtains the integrated dispatch priority of target terminal described in each;
Scheduler module, for according to the integrated dispatch priority of target terminal described in each, determines describedDispatch terminal corresponding to the above PUCCH resource to be allocated of k descending sub frame.
Preferably, described definite integrated dispatch priority block specifically for:
Described in whether being assigned with in the situation that there is PUCCH resource contention according to target terminal described in eachPUCCH resource, obtains the PUCCH resource contention probability parameter of target terminal described in each;
PUCCH resource according to the dispatching priority of target terminal described in each with target terminal described in eachCollision probability parameter, obtains the integrated dispatch priority of target terminal described in each;
Obtain the PUCCH resource contention probability parameter of i target terminal by following formula:
p 2 ( i ) = pucchOccupy i pucchConflict i
Wherein, pucchConflictiBe the number of times that PUCCH resource contention occurs i target terminal,pucchOccupyiBe that i target terminal is not assigned with PUCCH in the situation that there is PUCCH resource contentionThe number of times of resource.
Preferably, described definite integrated dispatch priority block specifically for:
Determine the integrated dispatch priority of i target terminal by following formula:
P(i)＝w1*p1(i)+w2*p2(i)
Wherein, the integrated dispatch priority of P (i) i target terminal; p1(i) be the dispatching priority of i terminalParameter, p2(i) be the PUCCH resource contention probability parameter of i terminal, w1、w2For weight, and w1+w2＝1；
Obtain the scheduling priority parameter of described i target terminal by following formula:
p 1 ( i ) = p i - p m i n p max - p m i n
Wherein, piBe the dispatching priority of i target terminal, pmaxAnd pminBe respectively described in each target eventuallyMaximum and the minimum of a value of the dispatching priority of end.
Preferably, the PUCCH resource that described target terminal is configured is the PUCCH lattice of selecting with channelFormula 1b;
Described scheduler module also for:
By the PDCCH on main carrier to except dispatch terminal corresponding to described PUCCH resource to be allocated withOuter target terminal carries out PDSCH scheduling, and wherein, described PDSCH is positioned at main carrier and/or auxiliary carrier wave.
Preferably, the PUCCH resource that described target terminal is configured is PUCCH form 3;
Described scheduler module also for:
By the PDCCH on main carrier to except dispatch terminal corresponding to described PUCCH resource to be allocated withOuter target terminal carries out PDSCH scheduling, and described PDSCH is positioned at main carrier.
In the embodiment of the present invention, obtain terminal and each institute in the scheduling queue that k descending sub frame is correspondingState PUCCH the Resources list that terminal is configured, determine terminal that described PUCCH the Resources list is identicalNumber is greater than in the situation of first threshold, and the identical terminal of described PUCCH the Resources list is defined as to targetTerminal, and according to the dispatching priority of target terminal described in each and described in each target terminal occurIn the situation of PUCCH resource contention, whether be assigned with described PUCCH resource, obtain target described in eachThe integrated dispatch priority of terminal, thus according to the integrated dispatch priority of target terminal described in each, determineAt dispatch terminal corresponding to the above PUCCH resource to be allocated of described k descending sub frame. The invention processIn example, in the situation that determining generation PUCCH resource contention, according to the integrated dispatch of each target terminalPriority is determined dispatch terminal corresponding to PUCCH resource to be allocated; Due to the comprehensive tune of each target terminalDegree priority be according to the dispatching priority of each target terminal and described in each target terminal occurIn the situation of PUCCH resource contention, whether be assigned with that described PUCCH resource obtains, thereby can haveEffect is avoided the problem that causes some terminal cannot be scheduled for a long time owing to there is PUCCH resource contention.
Brief description of the drawings
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, institute in describing embodiment belowNeed the accompanying drawing using to briefly introduce, apparently, the accompanying drawing in the following describes is only of the present inventionSome embodiment, for those of ordinary skill in the art, in the prerequisite of not paying creative workUnder, can also obtain according to these accompanying drawings other accompanying drawing.
The corresponding schematic flow sheet of method of a kind of dispatch terminal that Fig. 1 provides for the embodiment of the present invention;
Fig. 2 a and Fig. 2 b are the scheduling schematic diagram while there is PUCCH resource contention in the embodiment of the present invention;
The structural representation of a kind of base station that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
In order to make the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing to thisBright being described in further detail, obviously, described embodiment is only the present invention's part embodiment,Instead of whole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not doingGo out all other embodiment that obtain under creative work prerequisite, all belong to the scope of protection of the invention.
In the embodiment of the present invention, the method for dispatch terminal can be adapted to plurality of application scenes, is particularly useful for carrier waveThe scene of dispatch terminal in paradigmatic system.
The corresponding schematic flow sheet of method of a kind of dispatch terminal that Fig. 1 provides for the embodiment of the present invention, asShown in Fig. 1, the method comprises:
Step 101, obtains terminal in the scheduling queue that k descending sub frame is corresponding and terminal described in eachThe PUCCH the Resources list being configured;
Step 102, the number of determining the terminal that described PUCCH the Resources list is identical is greater than first thresholdIn situation, the identical terminal of described PUCCH the Resources list is defined as to target terminal; Described first thresholdTo determine according to the number of the PUCCH resource to be allocated in described PUCCH the Resources list; Described treatingDistribute PUCCH resource to refer to that the HARQ of k descending sub frame described in described PUCCH the Resources list is anti-PUCCH resource outside the PUCCH resource of distributing on the modulated degree descending sub frame in feedback window;
Step 103, according to the dispatching priority of target terminal described in each and described in each target terminal existIn the situation of generation PUCCH resource contention, whether be assigned with described PUCCH resource, obtain described in eachThe integrated dispatch priority of target terminal;
Step 104, according to the integrated dispatch priority of target terminal described in each, determines under described kDispatch terminal corresponding to the above PUCCH resource to be allocated of row subframe.
In the embodiment of the present invention, in the situation that determining generation PUCCH resource contention, according to each targetThe integrated dispatch priority of terminal is determined dispatch terminal corresponding to PUCCH resource to be allocated; Due to each orderThe integrated dispatch priority of mark terminal is according to the dispatching priority of each target terminal and order described in eachWhether mark terminal is assigned with in the situation that there is PUCCH resource contention that described PUCCH resource obtains,Thereby can effectively avoid causing some terminal cannot be scheduled for a long time owing to there is PUCCH resource contentionProblem.
In step 101, obtain the number of the terminal in the scheduling queue that k descending sub frame is corresponding, and rootDetermine the number of the maximum single frames dispatch terminal allowing of system according to the maximum processing capability of system single frames, if adjustThe number of the terminal in degree queue is greater than the number of the maximum single frames dispatch terminal allowing of system, according to schedulingThe dispatching priority of the terminal in queue, is defined as k descending sub frame by terminal higher dispatching priority and treatsThe terminal of scheduling. Wherein, the number of k descending sub frame terminal to be scheduled should be less than or equal to system maximumThe number of the single frames dispatch terminal allowing. For maximally utilising resource, in the embodiment of the present invention, kThe number of descending sub frame terminal to be scheduled can be defined as equaling the maximum single frames dispatch terminal allowing of systemNumber.
Particularly, the dispatching priority of terminal can determine in several ways, for example, and can be according to the industry of terminalThe portfolio that business type, terminal is pending etc. obtains. The embodiment of the present invention does not limit this.
In the embodiment of the present invention, terminal is configured described in each in scheduling queue corresponding to k descending sub framePUCCH the Resources list can for take a message select PUCCH form 1b, can be also PUCCHForm 3, or, also can comprise PUCCH form 1b and the PUCCH form selected with channel simultaneously3。
Particularly, high-rise by RRC (RadioResourceControl, radio resource control) letter" PUCCH-ConfigDedicated-v1020 → pucch-Format-r10 " configurating terminal in order usesWhich kind of PUCCH channel format carries out the feedback of ACK/NACK. For example, need to use auxiliary community if determineOn PDCCH (PhysicalDownlinkControlChannel, Physical Downlink Control Channel) to terminalCarry out PDSCH (PhysicalDownlinkSharedChannel, Physical Downlink Shared Channel) scheduling,Judge and be required to be the PUCCH form 1b resource that this terminal configuration band channel is selected; Need to use main if determinePDCCH on community carries out PDSCH scheduling to terminal, and DAI (Downlink corresponding to this PDCCHAssignmentIndex) be greater than 1, maybe need to dispatch the PDSCH on auxiliary community, judge and be required to be this terminalConfiguration PUCCH form 3 resources.
Wherein, the PUCCH form 1b resource of selecting with channel is passed through in RRC signaling" pucch-Format-r10 → channelSelection-r10 → n1PUCCH-AN-CS-List-r10 " is handed down toTerminal, PUCCH form 3 resources by RRC signaling " pucch-Format-r10 → format3-r10 →N3PUCCH-AN-List-r10 " be handed down to terminal.
If terminal configuration with channel select PUCCH form 1b, be required to be one of terminal distribution or oneTo PUCCH the Resources list, each list comprises 4 1b resources of selecting with channel;
If terminal configuration PUCCH form 3, be required to be PUCCH the Resources list of terminal distribution,This list comprises 4 PUCCH form 3 resources.
The PUCCH being configured with terminal described in each in scheduling queue corresponding to k descending sub frame belowThe Resources list is that PUCCH form 1b or the PUCCH form 3 selected with channel describe for example.
In the embodiment of the present invention, HARQ feedback window is used to indicate corresponding the closing of ascending-descending subframes of ACK feedbackSystem, for FDD system, a corresponding descending sub frame of sub-frame of uplink; For TDD system, oneSub-frame of uplink can corresponding multiple descending sub frames, and as shown in table 1 is the HARQ feedback window signal of TDD systemTable, for example, the in the situation that of ascending-descending subframes configuration 2, sub-frame of uplink 2 corresponding above the the 8th, 7,4,6Individual subframe, the uplink feedback subframe of descending sub frame 4,5,6,8 is sub-frame of uplink 2.
The HARQ feedback window signal of table 1:TDD system
In step 102, be respectively subframe 4, subframe 5, son with the descending sub frame in HARQ feedback windowFrame 6, subframe 8 describe for example.
For the first subframe in HARQ feedback window, i.e. subframe 4, now, in the scheduling queue of subframe 4Terminal be terminal a, terminal b, terminal c, terminal d, and terminal a, terminal b, terminal c, terminal dThe PUCCH the Resources list distributing is identical, in this list the indication information of PUCCH resource be respectively 0,1,2,3. Now, the number of the PUCCH resource to be allocated in PUCCH the Resources list equals 4; In subframeOn 4, be 0,1,2,3 PUCCH resource difference by resource indication information in PUCCH the Resources listDistributing terminals a, terminal b, terminal c, terminal d.
For the second subframe in HARQ feedback window, i.e. subframe 5, now, in the scheduling queue of subframe 4Terminal be terminal e, terminal f, terminal g, terminal h, and terminal e, terminal f, terminal g, terminal hThe PUCCH the Resources list distributing is identical, and in this list, the resource indication information of PUCCH resource is respectively3,4,5,6. Because the PUCCH resource that resource indication information is 3 is distributed in the subframe 4 of having dispatchedGive terminal d, now in PUCCH the Resources list PUCCH resource to be allocated for except described resource instructionInformation is the PUCCH resource beyond 3 PUCCH resource, resource indication information be respectively 4,5,6 PUCCH resource, the number that is also PUCCH resource to be allocated is 3.
In like manner, for the third and fourth subframe in HARQ feedback window, i.e. subframe 6 and subframe 8, PUCCHIn the Resources list, the number of PUCCH resource to be allocated can obtain according to aforesaid way.
Further, first threshold can equal the PUCCH resource to be allocated in PUCCH the Resources listNumber. For example, if the number of PUCCH resource to be allocated is 3, first threshold is also 3. Work as PUCCHThe number of the terminal that the Resources list is identical is greater than at 3 o'clock, owing to only there being 3 PUCCH resources to be allocated, because ofThis, can judge PUCCH resource contention occurs, and terminal identical PUCCH the Resources list is defined asTarget terminal.
In step 103, according to target terminal described in each in the situation that there is PUCCH resource contentionWhether be assigned with described PUCCH resource, obtain described in each PUCCH resource contention of target terminal generalRate parameter; Particularly, for one of them target terminal, be assumed to be i target terminal, can by withLower formula obtains the PUCCH resource contention probability parameter of i target terminal:
p 2 ( i ) = pucchOccupy i pucchConflict i Formula 1
Wherein, pucchConflictiBe the number of times that PUCCH resource contention occurs i target terminal,pucchOccupyiBe that i target terminal is not assigned with PUCCH in the situation that there is PUCCH resource contentionThe number of times of resource.
Obtain the scheduling priority parameter of i target terminal by following formula:
p 1 ( i ) = p i - p m i n p max - p m i n Formula 2
Wherein, piBe the dispatching priority of i target terminal, pmaxAnd pminBe respectively described in each target eventuallyMaximum and the minimum of a value of the dispatching priority of end.
Thereby can be according to the PUCCH resource contention probability parameter of i target terminal and i target terminalScheduling priority parameter, determine the integrated dispatch priority of i target terminal by following formula:
P(i)＝w1*p1(i)+w2*p2(i) ... formula 3
Wherein, the integrated dispatch priority of P (i) i target terminal; p1(i) be the dispatching priority of i terminalParameter, p2(i) be the PUCCH resource contention probability parameter of i terminal, w1、w2For weight, and w1+w2＝1。
The embodiment of the present invention is determined the integrated dispatch priority of each target terminal by the way, therebyMake the integrated dispatch priority of determining consider that target terminal is in the situation that PUCCH resource contention occursUnder whether be assigned with described PUCCH resource, there is the situation of PUCCH resource contention in target terminalUnder not to be assigned to the probability of PUCCH resource larger, the integrated dispatch of the target terminal calculating is preferentialLevel is larger, is assigned with PUCCH resource thereby promote this target terminal in this PUCCH resource contentionProbability, promote the probability that this target terminal is scheduled.
Fig. 2 a and Fig. 2 b are the scheduling schematic diagram while there is PUCCH resource contention.
As shown in Figure 2 a, in subframe 1, there is PUCCH resource contention, terminal in terminal x and terminal yThe integrated dispatch priority of x is 0.7, the integrated dispatch priority 0.6 of terminal y, and combining due to terminal xClose dispatching priority and be greater than the integrated dispatch priority of terminal y, therefore, in subframe 1, terminal x obtainsScheduling, is assigned with PUCCH resource, and terminal y is not assigned with PUCCH resource.
As shown in Figure 2 b, in subframe subsequently, for example, in the time of subframe 4, terminal x and terminal y are againInferior generation PUCCH resource contention, now, while determining integrated dispatch priority by the way, due toIt is large that the PUCCH resource contention probability parameter of terminal y becomes, and therefore, likely there will be that terminal x's is comprehensiveDispatching priority is less than the situation of the integrated dispatch priority of terminal y, and for example, the integrated dispatch of terminal x is excellentFirst level is 0.6, the integrated dispatch priority 0.7 of terminal y, and now, terminal y will be dispatched, and be dividedJoin PUCCH resource, terminal x is not assigned with PUCCH resource. Thereby terminal x and terminal y are realizedThe effect being scheduled of all having an opportunity, has avoided adjusting compared with low can not get for a long time because of the dispatching priority of some terminalThe problem of degree.
In step 104, according to the integrated dispatch priority of each target terminal, determine the descending son at kDispatch terminal corresponding to PUCCH resource to be allocated on frame, by each PUCCH resource to be allocated respectivelyDistribute to each dispatch terminal. For example, if the number of PUCCH resource to be allocated is 3, can be according to respectivelyThe integrated dispatch priority of individual target terminal, chooses 3 target terminals that integrated dispatch priority is high as tuneDegree terminal, distributes to respectively 3 dispatch terminals by PUCCH resource to be allocated. Particularly, can pass throughTPC (TransmitPowerControl) field that PDCCH is corresponding is defined as each dispatch terminal and distributesPUCCH resource.
In the embodiment of the present invention, be directed to and PUCCH resource contention occur and cannot use this PUCCH moneyThe target terminal in source, can adjust as follows its scheduling mode:
The PUCCH resource being configured at target terminal is the situation of the PUCCH form 1b with channel selectionUnder, can be by the PDCCH on main carrier to except dispatch terminal corresponding to PUCCH resource to be allocatedTarget terminal carry out PDSCH scheduling, wherein, described PDSCH is positioned at main carrier and/or auxiliary carrier wave.The PUCCH resource being configured at target terminal is PUCCH form 3, can be by the PDCCH on main carrierTarget terminal except dispatch terminal corresponding to PUCCH resource to be allocated is carried out to PDSCH scheduling,And PDSCH is only positioned at main carrier, the PDSCH on auxiliary carrier wave is not dispatched. Meanwhile, at HARQIn feedback window, only to PDSCH subframe of this terminal scheduling.
In the embodiment of the present invention, obtain terminal and each institute in the scheduling queue that k descending sub frame is correspondingState PUCCH the Resources list that terminal is configured, determine terminal that described PUCCH the Resources list is identicalNumber is greater than in the situation of first threshold, and the identical terminal of described PUCCH the Resources list is defined as to targetTerminal, and according to the dispatching priority of target terminal described in each and described in each target terminal occurIn the situation of PUCCH resource contention, whether be assigned with described PUCCH resource, obtain target described in eachThe integrated dispatch priority of terminal, thus according to the integrated dispatch priority of target terminal described in each, determineAt dispatch terminal corresponding to the above PUCCH resource to be allocated of described k descending sub frame. The invention processIn example, in the situation that determining generation PUCCH resource contention, according to the integrated dispatch of each target terminalPriority is determined dispatch terminal corresponding to PUCCH resource to be allocated; Due to the comprehensive tune of each target terminalDegree priority be according to the dispatching priority of each target terminal and described in each target terminal occurIn the situation of PUCCH resource contention, whether be assigned with that described PUCCH resource obtains, thereby can haveEffect is avoided the problem that causes some terminal cannot be scheduled for a long time owing to there is PUCCH resource contention.
For said method flow process, the embodiment of the present invention also provides a kind of base station, and the particular content of this base station canTo implement with reference to said method, do not repeat them here.
The structural representation of a kind of base station that Fig. 3 provides for the embodiment of the present invention, as shown in Figure 3, this base stationComprise:
Acquisition module 301, for obtaining the terminal of the scheduling queue that k descending sub frame is corresponding and eachPUCCH the Resources list that described terminal is configured;
Determination module 302, for determining that the number of the identical terminal of described PUCCH the Resources list is greater than theIn the situation of one threshold value, the identical terminal of described PUCCH the Resources list is defined as to target terminal; DescribedFirst threshold is to determine according to the number of the PUCCH resource to be allocated in described PUCCH the Resources list;Described PUCCH resource to be allocated refers to k descending sub frame described in described PUCCH the Resources listPUCCH resource outside the PUCCH resource of distributing on the modulated degree descending sub frame in HARQ feedback window;
Determine integrated dispatch priority block 303, for according to the dispatching priority of target terminal described in eachAnd described in described in each, whether target terminal is assigned with in the situation that there is PUCCH resource contentionPUCCH resource, obtains the integrated dispatch priority of target terminal described in each;
Scheduler module 304, for according to the integrated dispatch priority of target terminal described in each, determines in instituteState dispatch terminal corresponding to the above PUCCH resource to be allocated of k descending sub frame.
Preferably, described definite integrated dispatch priority block 303 specifically for:
Described in whether being assigned with in the situation that there is PUCCH resource contention according to target terminal described in eachPUCCH resource, obtains the PUCCH resource contention probability parameter of target terminal described in each;
PUCCH resource according to the dispatching priority of target terminal described in each with target terminal described in eachCollision probability parameter, obtains the integrated dispatch priority of target terminal described in each;
Obtain the PUCCH resource contention probability parameter of i target terminal by following formula:
p 2 ( i ) = pucchOccupy i pucchConflict i
Wherein, pucchConflictiBe the number of times that PUCCH resource contention occurs i target terminal,pucchOccupyiBe that i target terminal is not assigned with PUCCH in the situation that there is PUCCH resource contentionThe number of times of resource.
Preferably, described definite integrated dispatch priority block 303 specifically for:
Determine the integrated dispatch priority of i target terminal by following formula:
P(i)＝w1*p1(i)+w2*p2(i)
Wherein, the integrated dispatch priority of P (i) i target terminal; p1(i) be the dispatching priority of i terminalParameter, p2(i) be the PUCCH resource contention probability parameter of i terminal, w1、w2For weight, and w1+w2＝1；
Obtain the scheduling priority parameter of described i target terminal by following formula:
p 1 ( i ) = p i - p m i n p max - p m i n
Wherein, piBe the dispatching priority of i target terminal, pmaxAnd pminBe respectively described in each target eventuallyMaximum and the minimum of a value of the dispatching priority of end.
Preferably, the PUCCH resource that described target terminal is configured is the PUCCH lattice of selecting with channelFormula 1b;
Described scheduler module 304 also for:
By the PDCCH on main carrier to except dispatch terminal corresponding to described PUCCH resource to be allocated withOuter target terminal carries out PDSCH scheduling, and wherein, described PDSCH is positioned at main carrier and/or auxiliary carrier wave.
Preferably, the PUCCH resource that described target terminal is configured is PUCCH form 3;
Described scheduler module 304 also for:
By the PDCCH on main carrier to except dispatch terminal corresponding to described PUCCH resource to be allocated withOuter target terminal carries out PDSCH scheduling, and described PDSCH is only positioned at main carrier.
It can be seen from the above: in the embodiment of the present invention, obtain the scheduling team that k descending sub frame is correspondingTerminal in row and PUCCH the Resources list that described in each, terminal is configured, determine described PUCCHThe number of the terminal that the Resources list is identical is greater than in the situation of first threshold, by described PUCCH the Resources listIdentical terminal is defined as target terminal, and according to the dispatching priority of target terminal described in each and eachWhether described target terminal is assigned with described PUCCH resource in the situation that there is PUCCH resource contention,Obtain the integrated dispatch priority of target terminal described in each, thus comprehensive according to target terminal described in eachDispatching priority, determines in scheduling corresponding to the above PUCCH resource to be allocated of described k descending sub frameTerminal. In the embodiment of the present invention, in the situation that determining generation PUCCH resource contention, according to each orderThe integrated dispatch priority of mark terminal is determined dispatch terminal corresponding to PUCCH resource to be allocated; Due to eachThe integrated dispatch priority of target terminal is according to described in the dispatching priority of each target terminal and eachWhether target terminal is assigned with described PUCCH resource in the situation that there is PUCCH resource contention obtains, thereby can effectively avoid causing some terminal for a long time cannot be by owing to there is PUCCH resource contentionThe problem of scheduling.
Those skilled in the art should understand, embodiments of the invention can be provided as method or computer journeyOrder product. Therefore, the present invention can adopt complete hardware implementation example, complete implement software example or in conjunction with softwareForm with the embodiment of hardware aspect. And the present invention can adopt at one or more meters that wherein includeThe computer-usable storage medium of calculation machine usable program code (include but not limited to magnetic disc store,CD-ROM, optical memory etc.) form of the upper computer program of implementing.
The present invention is that reference is according to the method for the embodiment of the present invention, equipment (system) and computer program productThe flow chart of product and/or block diagram are described. Should understand can be by computer program instructions realization flow figure and/ or block diagram in each flow process and/or flow process in square frame and flow chart and/or block diagram and/Or the combination of square frame. Can provide these computer program instructions to all-purpose computer, special-purpose computer, embeddingThe processor of formula processor or other programmable data processing device, to produce a machine, makes by calculatingThe instruction that the processor of machine or other programmable data processing device is carried out produces for realizing at flow chart oneThe device of the function of specifying in square frame of individual flow process or multiple flow process and/or block diagram or multiple square frame.
These computer program instructions also can be stored in energy vectoring computer or other programmable data processing are establishedIn the standby computer-readable memory with ad hoc fashion work, make to be stored in this computer-readable memoryInstruction produce and comprise the manufacture of command device, this command device is realized in flow process or multiple of flow chartThe function of specifying in square frame of flow process and/or block diagram or multiple square frame.
These computer program instructions also can be loaded in computer or other programmable data processing device, makeMust on computer or other programmable devices, carry out sequence of operations step to produce computer implemented placeReason, thus the instruction of carrying out on computer or other programmable devices is provided for realizing one of flow chartThe step of the function of specifying in square frame of flow process or multiple flow process and/or block diagram or multiple square frame.
Although described the preferred embodiments of the present invention, once those skilled in the art obtain cicada baseThis creative concept, can make other change and amendment to these embodiment. So appended right is wantedAsk and be intended to be interpreted as comprising preferred embodiment and fall into all changes and the amendment of the scope of the invention.
Obviously, those skilled in the art can carry out various changes and modification and not depart from this present inventionBright spirit and scope. Like this, if of the present invention these amendment and modification belong to the claims in the present invention andWithin the scope of its equivalent technologies, the present invention be also intended to comprise these change and modification interior.

Claims (10)

1. a method for dispatch terminal, is characterized in that, the method comprises:
Obtain the terminal in the scheduling queue that k descending sub frame is corresponding and thing that described in each, terminal is configuredReason uplink control channel PUCCH the Resources list;
The number of determining the terminal that described PUCCH the Resources list is identical is greater than in the situation of first threshold, willThe identical terminal of described PUCCH the Resources list is defined as target terminal; Described first threshold be according to described inThe number of the PUCCH resource to be allocated in PUCCH the Resources list is determined; Described PUCCH to be allocatedResource refers to the mixed automatic retransfer request of k descending sub frame described in described PUCCH the Resources listPUCCH resource outside the PUCCH resource of distributing on the modulated degree descending sub frame in HARQ feedback window;
According to the dispatching priority of target terminal described in each and described in each target terminal occurIn the situation of PUCCH resource contention, whether be assigned with described PUCCH resource, obtain target described in eachThe integrated dispatch priority of terminal;
According to the integrated dispatch priority of target terminal described in each, determine institute on described k descending sub frameState dispatch terminal corresponding to PUCCH resource to be allocated.
2. the method for claim 1, is characterized in that, described according to target terminal described in eachDispatching priority and described in each target terminal in the situation that there is PUCCH resource contention whether byDistribute described PUCCH resource, obtain the integrated dispatch priority of target terminal described in each, comprising:
Described in whether being assigned with in the situation that there is PUCCH resource contention according to target terminal described in eachPUCCH resource, obtains the PUCCH resource contention probability parameter of target terminal described in each;
PUCCH resource according to the dispatching priority of target terminal described in each with target terminal described in eachCollision probability parameter, obtains the integrated dispatch priority of target terminal described in each;
Obtain the PUCCH resource contention probability parameter of i target terminal by following formula:
p 2 ( i ) = pucchOccupy i pucchConflict i
Wherein, pucchConflictiBe the number of times that PUCCH resource contention occurs i target terminal,pucchOccupyiBe that i target terminal is not assigned with PUCCH in the situation that there is PUCCH resource contentionThe number of times of resource.
3. method as claimed in claim 2, is characterized in that, described according to target terminal described in eachDispatching priority and the PUCCH resource contention probability parameter of target terminal described in each, obtain each instituteThe integrated dispatch priority of stating target terminal, comprising:
Determine the integrated dispatch priority of i target terminal by following formula:
P(i)＝w1*p1(i)+w2*p2(i)
Wherein, the integrated dispatch priority of P (i) i target terminal; p1(i) be the dispatching priority of i terminalParameter, p2(i) be the PUCCH resource contention probability parameter of i terminal, w1、w2For weight, and w1+w2＝1；
Obtain the scheduling priority parameter of described i target terminal by following formula:
p 1 ( i ) = p i - p m i n p max - p m i n
Wherein, piBe the dispatching priority of i target terminal, pmaxAnd pminBe respectively described in each target eventuallyMaximum and the minimum of a value of the dispatching priority of end.
4. the method for claim 1, is characterized in that, the PUCCH that described target terminal is configuredResource is the PUCCH form 1b selecting with channel;
Described according to the integrated dispatch priority of target terminal described in each, determine at described k descending sub frameAfter the dispatch terminal of scheduling, also comprise:
By the physical downlink control channel PDCCH on main carrier to except described PUCCH resource to be allocatedTarget terminal beyond corresponding dispatch terminal carries out Physical Downlink Shared Channel PDSCH scheduling, wherein,Described PDSCH is positioned at main carrier and/or auxiliary carrier wave.
5. the method for claim 1, is characterized in that, the PUCCH that described target terminal is configuredResource is PUCCH form 3;
Described according to the integrated dispatch priority of target terminal described in each, determine at described k descending sub frameAfter the dispatch terminal of scheduling, also comprise:
By the PDCCH on main carrier to except dispatch terminal corresponding to described PUCCH resource to be allocated withOuter target terminal carries out Physical Downlink Shared Channel PDSCH scheduling, and described PDSCH is positioned at main carryingRipple.
6. a base station, is characterized in that, this base station comprises:
Acquisition module, for obtaining described in the terminal of the scheduling queue that k descending sub frame is corresponding and eachPUCCH the Resources list that terminal is configured;
Determination module, is greater than the first threshold for the number of determining the terminal that described PUCCH the Resources list is identicalIn the situation of value, the identical terminal of described PUCCH the Resources list is defined as to target terminal; Described firstThreshold value is to determine according to the number of the PUCCH resource to be allocated in described PUCCH the Resources list; InstituteState PUCCH resource to be allocated and refer to k descending sub frame described in described PUCCH the Resources listPUCCH resource outside the PUCCH resource of distributing on the modulated degree descending sub frame in HARQ feedback window;
Determine integrated dispatch priority block, for according to the dispatching priority of target terminal described in each andDescribed in each, whether target terminal is assigned with described PUCCH in the situation that there is PUCCH resource contentionResource, obtains the integrated dispatch priority of target terminal described in each;
Scheduler module, for according to the integrated dispatch priority of target terminal described in each, determines describedDispatch terminal corresponding to the above PUCCH resource to be allocated of k descending sub frame.
7. base station as claimed in claim 6, is characterized in that, described definite integrated dispatch priority mouldPiece specifically for:
Described in whether being assigned with in the situation that there is PUCCH resource contention according to target terminal described in eachPUCCH resource, obtains the PUCCH resource contention probability parameter of target terminal described in each;
PUCCH resource according to the dispatching priority of target terminal described in each with target terminal described in eachCollision probability parameter, obtains the integrated dispatch priority of target terminal described in each;
Obtain the PUCCH resource contention probability parameter of i target terminal by following formula:
p 2 ( i ) = pucchOccupy i pucchConflict i
Wherein, pucchConflictiBe the number of times that PUCCH resource contention occurs i target terminal,pucchOccupyiBe that i target terminal is not assigned with PUCCH in the situation that there is PUCCH resource contentionThe number of times of resource.
8. base station as claimed in claim 7, is characterized in that, described definite integrated dispatch priority mouldPiece specifically for:
Determine the integrated dispatch priority of i target terminal by following formula:
P(i)＝w1*p1(i)+w2*p2(i)
Wherein, the integrated dispatch priority of P (i) i target terminal; p1(i) be the dispatching priority of i terminalParameter, p2(i) be the PUCCH resource contention probability parameter of i terminal, w1、w2For weight, and w1+w2＝1；
Obtain the scheduling priority parameter of described i target terminal by following formula:
p 1 ( i ) = p i - p m i n p max - p m i n
Wherein, piBe the dispatching priority of i target terminal, pmaxAnd pminBe respectively described in each target eventuallyMaximum and the minimum of a value of the dispatching priority of end.
9. base station as claimed in claim 6, is characterized in that, the PUCCH that described target terminal is configuredResource is the PUCCH form 1b selecting with channel;
Described scheduler module also for:
By the PDCCH on main carrier to except dispatch terminal corresponding to described PUCCH resource to be allocated withOuter target terminal carries out PDSCH scheduling, and wherein, described PDSCH is positioned at main carrier and/or auxiliary carrier wave.
10. base station as claimed in claim 6, is characterized in that, the PUCCH that described target terminal is configuredResource is PUCCH form 3;
Described scheduler module also for:
By the PDCCH on main carrier to except dispatch terminal corresponding to described PUCCH resource to be allocated withOuter target terminal carries out PDSCH scheduling, and described PDSCH is positioned at main carrier.
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CN106102169A (en) * 2016-05-26 2016-11-09 京信通信系统（广州）有限公司 PUCCH resource collocation method and base station in a kind of LTE system
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CN112448754A (en) * 2019-09-05 2021-03-05 海能达通信股份有限公司 Resource allocation method, device, storage medium and satellite communication system

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