CN104105213A - Scheduling method and device in mobile communication system - Google Patents
Scheduling method and device in mobile communication system Download PDFInfo
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Abstract
The invention provides a method for carrying out uplink subframe scheduling in a time division duplex (TDD) mobile communication system. In one embodiment, the method comprises receiving downlink control information (DCI) for carrying out uplink subframe scheduling. The 2-bit index indicator included in the DCI may be used for indicating the downlink allocation index (DAI) in downlink subframes of the TDD-LTE frame structure # 0, may be used for indicating the uplink index (ULI), and also may be used for indicating ULI and DAI information simultaneously. Through the application of the technical scheme in the invention, the problem of ULI and DAI bit conflict in the uplink subframe scheduling which is caused when a hopped frame structure in an enhanced interference management traffic adaptation (eIMTA) scene comprises the frame structure # 0 or a reference uplink frame structure is the frame structure # 0 is solved, and meanwhile, the compatibility with an existing system is maintained to the greatest degree.
Description
Technical field
The present invention relates to the scheme of in mobile communication technology field, subframe being dispatched, particularly relate to and adopted eIMTA(Enhanced Interference Traffic Adaptation, strengthen interference management transmission adjustment) the TDD(time division duplex of technology, Time Division Duplex) LTE(Long Term Evolusion, Long Term Evolution) scheme of the descending control signaling that ascending-descending subframes is dispatched in system.
Background technology
3GPP(3rd Generation Partner Project, third generation partner program) define the frame structure of following TDD-LTE system, wherein D represents descending sub frame, and U represents sub-frame of uplink, and S is special subframe:
Table 1:TDD LTE frame structure
3GPP has further defined the parameter k across subframe uplink subframe scheduling, as shown in table 2.The implication of k is: the DCI(Downlink Control Indicator for uplink scheduling in descending sub frame n, descending control instruction), the subframe of its scheduling is positioned at n+k subframe.It should be noted that for tdd frame structure #0 can be by the ULI(Uplink Index of 2 bits in DCI, upper line index instruction) configuration k is 4, or 7, or be 4 and 7 simultaneously.
Uplink subframe scheduling parameter k in table 2:TDD LTE
When up while being #0 with reference to tdd frame structure, to PUSCH(Physical Uplink Shared Channel, Physical Uplink Shared Channel) DCI that dispatches capable reference comprises that the ULI of 2 bits is used to indicate the sub-frame of uplink of described DCI scheduling.It should be noted that, described 2 bits are not indicated ULI in non-#0 up in reference to tdd frame structure, and for DAI(Downlink Assignment Index, descending allocation index), indicate the PDSCH(Physical Downlink Shared Channel of this DCI corresponding up replying/non-replying (ACK/NACK) representative, Physical Downlink Shared Channel) quantity.
For the ACK/NACK of the upper feedback of sub-frame of uplink n, its for PDSCH may be only the PDSCH of the DCI instruction that sends of n-k subframe, wherein k belongs to subframe collection K, as table 3 defines.
Table 3: descending associated subframe collection K
3GPP is at R(Release, version) introduce the research topic of eIMTA in 11, main thought is according to the demand of community up-downgoing traffic carrying capacity, adjusts faster the frame structure of TDD system.3GPP has assessed three kinds of possible adjustment cycles:
● 640 milliseconds (ms-millisecond): existing R11 system can be passed through system information block (SIB-System Information Block) support
● 100ms: existing R11 system is not supported, realizes by RRC signaling
● 10ms: existing R11 system is not supported, realizes by dynamic signaling
The adjustment cycle of 10ms can provide the maximum degree of freedom and performance gain, thereby becomes the more promising scheme of one.For 10ms frame structure adjustment cycle, have some problems to need to solve, for example frame structure configuration signal design, HARQ(Hybrid Automatic Repeat Request, mixed automatic retransfer request) sequential relationship etc.
With regard to Signalling Designing, what possible scheme comprised demonstration configures DCI configuration by frame structure, or hidden passing through of showing detects descending sub frame and whether comprise DCI and this DCI whether dispatching uplink subframe obtains.
With regard to HARQ sequential relationship, a more feasible scheme is to define up reference frame structure and descending reference frame structure with reference to the carrier aggregation scheme with different frame structure of R11 definition, no matter present frame jumps to any frame structure, all carry out uplink HARQ operation according to up reference frame structure, carry out descending HARQ operation according to descending reference frame structure.3GPP manuscript R1-130558, R1-130130 has described this scheme.Another possibility is, on the basis of the configuration present frame structure based on showing, adopt the specific HARQ sequential of subframe, for example frame 1 is frame structure #2, frame 2 is frame structure #0, subframe 8/9 in frame 1 can be dispatched respectively sub-frame of uplink 2/3 in frame 2 according to the HARQ sequential of frame structure #2, and the subframe 0/1 in frame 2 is carried out uplink scheduling according to the HARQ sequential in frame structure #0.
But the problem of a needs solution is, be that up reference frame structure is tdd frame structure #0 if comprise tdd frame structure #0(in eIMTA in the frame structure of candidate's saltus step), the sub-frame of uplink that needs on the one hand ULI instruction to distribute, the number of sub frames that needs on the other hand DAI instruction uplink ACK/NACK bit number or ACK/NACK to bundle.So just produce the problem of ULI/DAI bit conflict.Consider SIB(System Information Block, system information block) sub-frame of uplink of the tdd frame structure that configures in-I can not configure DCI by frame structure and be configured to descending sub frame, comprises tdd frame structure #0: the tdd frame structure of current SIB-I configuration is #0 in the frame structure of described candidate's saltus step.
Multiplexing for ACK/NACK, in the time that ULI/DAI conflicts, a possible solution is to be the reserved maximum bit number of ACK/NACK.But for ACK/NACK binding, UE cannot know whether undetected PDCCH, thereby accurate feeding back ACK/NACK.
Summary of the invention
In existing standard, 2 ULI/DAI bits that define in TDD do not change in 640ms: according to frame structure or reference frame configuration index, or instruction DAI, or instruction ULI.And in eIMTA scene, if frame structure can switch fast (in the time that the tdd frame structure of SIB-I configuration is #0) in the middle of the kinds of frame including frame structure #0, in a frame, no matter be fixing instruction DAI, or fixing instruction ULI, existing definition all can not meet configuration needs completely.
The ULI of 4 descending sub frame 0/1/5/6 each subframes of frame structure #0 has comprised 2 bit-4 kind of states, and the ULI in 4 subframes has comprised 8 bit-256 kind of states.The inventor studies discovery, in actual transmissions, the uplink subframe scheduling that is used to indicate frame structure #0 does not need to use completely this 256 kinds of states, there are two kinds of methods to solve ULI/DAI collision problem, a kind of method is to determine flexibly that the ULI/DAI bit (hereinafter we are called index indication bit) in each subframe is used to indicate ULI or DAI, the DAI information of bringing for instruction ULI is imperfect, adopt the way compensation of reserved maximum ACK/NACK bit number, suppose all to have sent PDSCH in descending sub frame that DAI value indicated described ACK/NACK to indicate, another kind of way is that for each frame, a part for 4 kinds of states of index indication bit is indicated ULI, another part instruction DAI.
The invention also discloses the dispatching method in a kind of mobile communication system, specifically, for the method for the processing uplink subframe scheduling DCI at TDD subscriber equipment, it is characterized in that, comprise the steps:
-determine that the index instruction character of descending sub frame n is C1, C2, in C3 one
-receive the Downlink Control Information (DCI) for uplink scheduling at described descending sub frame n
-according to the index instruction character of described descending sub frame n, understand index indication bit by a step of carrying out in following steps:
If A1. the index of described descending sub frame n instruction character is C1, obtain DAI information by understanding described index indication bit;
If A2. the index of described descending sub frame n instruction character is C2, obtain ULI information by understanding described index indication bit;
If A3. the index of described descending sub frame n instruction character is C3, by understanding described index indication bit ULI/DAI integrated information;
Wherein, current up reference frame structure is tdd frame structure #0.As an embodiment, the mapping scheme in existing standard is reused in DAI and the mapping of ULI information, the value that is DAI is Mod(V_DAI, 4), wherein Mod(A, B) represent the A remainder later to B delivery, V_DAI represents the PDSCH quantity of DCI corresponding up replying/non-replying (ACK/NACK) representative that carries DAI, and the mapping method of ULI depends on the sub-frame of uplink index situation that the DCI of ULI dispatches of carrying:
Table 4: existing ULI valuation scheme
| ULI | The sub-frame of uplink that the DCI of subframe n dispatches |
| 10 | N+k (k is referring to table 2) |
| 01 | n+7 |
| 11 | N+7 and n+k (k is referring to table 2) |
Concrete, according to an aspect of the present invention, it is characterized in that, if described descending sub frame n is the descending sub frame not belonging in tdd frame structure #0, determine that the index instruction character of described descending sub frame n is C1
The essence of above-mentioned aspect is: do not belong to the descending sub frame in tdd frame structure #0, it can only dispatch a sub-frame of uplink, does not therefore need ULI.
Concrete, according to an aspect of the present invention, it is characterized in that, if described descending sub frame n is the descending sub frame in tdd frame structure #0, determine that the index instruction character of described descending sub frame n is C2;
Concrete, according to above-mentioned aspect of the present invention, it is characterized in that, also comprise the steps:
-send reply/non-replying of ACK/NACK(in n+k subframe), the bit number of described ACK/NACK and mapping are that all possible descending sub frame by supposing described ACK/NACK instruction has all sent PDSCH and obtains, and wherein k obtains by understanding described index indication bit.
Index indication bit on descending sub frame in all tdd frame structure #0 is all defined as ULI, UE(User Equipment, subscriber equipment) cannot determine current DAI value, and then can not determine ACK/NACK bit number and mapping method.Therefore, UE need to determine ACK/NACK bit number and mapping method according to maximum possible, and UE supposes that each descending sub frame in described ACK/NACK binding indication window has sent PDSCH.This scheme implements fairly simple, and and existing standard compatibility, but problem is, need to reserve a large amount of ACK/NACK bits.
As one embodiment of the present of invention, up reference frame structure is that #0(is DCI scheduling PUSCH, and for the descending ACK/NACK of PUSCH, and the HARQ sequential of frame structure #0 is observed in the re-transmission of PUSCH), descending reference frame structure is that #5(is for uplink ACK/NACK of PDSCH, and the HARQ sequential of frame structure #5 is observed in the re-transmission of PDSCH), no matter current actual frame structure is what frame structure (for example possible frame structure comprises 0/1/2/3/4/5/6), uplink ACK/NACK can only send in subframe 2, and each ACK/NACK will indicate at most 9 descending sub frames, that is to say for Physical Uplink Control Channel (PUCCH-Physical Uplink Control Channel) format3, need to reserve 9 bits.
Concrete, according to a further aspect in the invention, it is characterized in that, if described descending sub frame n be descending sub frame in tdd frame structure #0 and
If 2 sub-frame of uplink that described descending sub frame n can dispatch are not all set to descending sub frame by frame structure configuration DCI, determine that the index instruction character of described descending sub frame n is C2;
Concrete, according to a further aspect in the invention, it is characterized in that, if if there is 1 to be set to descending sub frame by frame structure configuration DCI in 2 sub-frame of uplink that described descending sub frame n is descending sub frame in tdd frame structure #0 and described descending sub frame n can be dispatched, determine that the index instruction character of described descending sub frame n is C1
Concrete, according to a further aspect in the invention, it is characterized in that, also comprise the steps:
-sending ACK/NACK in n+k subframe, the bit number of described ACK/NACK and mapping are that all possible descending sub frame by supposing described ACK/NACK instruction has all sent PDSCH and obtains, wherein k obtains by understanding described index indication bit.
System configures DCI by frame structure and shows configuration present frame structure.
Differentiation has been done to the descending sub frame in tdd frame structure #0 in above-mentioned aspect, and a part of index instruction character is C1, and another part is C2.The only part subframe to C2, UE need to determine ACK/NACK bit number and mapping method according to maximum possible.Save reserved ACK/NACK amount of bits.
As an embodiment, system configures DCI by frame structure and shows the current frame structure of configuration UE, be for example 1,0 the sub-frame of uplink set { 4 that can dispatch of subframe, { 4} has been clearly descending to subframe in 7}, therefore subframe 0 can only be dispatched 1 descending sub frame, determines that index instruction character belongs to C1.Subframe 5 also belongs to same scene.
As another embodiment, the CA(Carrier Aggregation discussing in similar 3GPP R11, carrier aggregation), by reference to the hidden configuration frame structure showing of frame structure, frame structure is for example set can saltus step between #3/4/5/0, and the HARQ sequential relationship that up reference frame structure #0(is PUSCH is observed frame structure #0), 0 the sub-frame of uplink set { 4 that can dispatch of subframe, { 4} has been clearly descending to subframe in 7}, 5 the sub-frame of uplink set { 9 that can dispatch of subframe, { 9} is clearly also descending to subframe in 2}, so determine that the index instruction character of subframe 0/5 is C1.
Concrete, according to another aspect of the invention, it is characterized in that, if described descending sub frame n is the descending sub frame in tdd frame structure #0, determine that the index instruction character of described descending sub frame n is C3.
Concrete, according to above-mentioned aspect of the present invention, it is characterized in that, if sub-frame of uplink n+k can only be dispatched by descending sub frame n, and described sub-frame of uplink n+k multipotency in a kind of frame structure carries the ACK/NACK for 1 descending sub frame, if and the state of index indication bit representative in the upper DCI sending of the descending sub frame n that reads of solution meets specific a kind of state, obtain parameter k.Sub-frame of uplink 8/9 all meets above-mentioned condition, and the one in four kinds of states that therefore only 2 index indication bit of needs can be indicated can be indicated.
Concrete, according to above-mentioned aspect of the present invention, it is characterized in that, if sub-frame of uplink n+k can only be dispatched by descending sub frame n, and described sub-frame of uplink n+k multipotency in a kind of frame structure carries for the ACK/NACK that is greater than 1 descending sub frame, if and the state of index indication bit representative in the upper DCI sending of the descending sub frame n that reads of solution meets the one in the three state outside described a kind of state, obtain 3 kinds of one in DAI value.
Sub-frame of uplink 3/4 all meets above-mentioned condition, for subframe 4, and 2 descending sub frames of the multipotency instruction of its ACK/NACK carrying, therefore 3 kinds of DAI values can satisfy the demands completely, for example, can select DAI value for [124], and wherein 4 expressions do not have descending sub frame transmission; And for subframe 3,4 descending sub frames of the multipotency instruction of its ACK/NACK carrying, therefore 3 kinds of DAI values can only meet most of needs, can solve by above-mentioned reserved maximum ACK/NACK bit number, or solve by realizing related approaches, for example, when scheduling, avoid a kind of situation of DAI value.
Concrete, according to another aspect of the invention, if sub-frame of uplink n+k can be dispatched by descending sub frame n1 and descending sub frame n2 simultaneously, it is characterized in that:
If described descending sub frame n is described descending sub frame n1, confirm that the target DAI value of described DCI instruction is 4 kinds of P kind values in DAI value, the P kind state of described P kind value and described index indication bit is corresponding one by one;
If described descending sub frame n is described descending sub frame n2, confirm that the target DAI value of described DCI instruction is the 4-P kind value outside P kind value described in 4 kinds of DAI values, the 4-P kind state of described 4-P kind value and described index indication bit is corresponding one by one.
Wherein, P is greater than 0 integer that is less than 4.
2 index indication bit represent 4 kinds of index indicating status, table 5 is embodiment for said method, for example, being 4 and 3 DAI values of subframe by what understand in descending sub frame 0 that 3 kinds of index indicating status obtain current scheduling, is 7 and 1 DAI value of subframe by what understand other a kind of index indicating status acquisition current scheduling in descending sub frame 0; Similarly, be 7 and 3 DAI values of subframe by what understand in descending sub frame 1 that 3 kinds of index indicating status obtain current scheduling, be subframe 8 by what understand other a kind of index indicating status acquisition current scheduling in descending sub frame 1.
As shown in Table 5, for subframe 2/4/7/8/9, have enough DAI values (maximum 4 values) instruction ACK/NACK bit number, unique is that subframe 3 lacks 1 DAI value, and this can solve by above-mentioned reserved maximum ACK/NACK bit number.
Concrete, according to a further aspect in the invention, it is characterized in that, also comprise the steps:
-sending ACK/NACK in n+k subframe, the bit number of described ACK/NACK and mapping are that all possible descending sub frame by supposing described ACK/NACK instruction has all sent PDSCH and obtains, wherein k obtains by understanding described index indication bit.
Table 5:ULI/DAI integrated information mapping embodiment
Determine that this step of index instruction character can pass through accomplished in many ways, for example can obtain by real-time operation according to such scheme, or calculate index instruction character and save according to above-mentioned rule in advance, when follow-up needs, obtaining index instruction character by searching the data of preservation.
The invention discloses a kind ofly for carry out the method for subframe scheduling at TDD network equipment, comprising:
-determine that the index instruction character of descending sub frame n is C1, C2, in C3 one
-according to the index instruction character of described descending sub frame n, by a step of carrying out in following steps, index indication bit is set:
If A1. the index of described descending sub frame n instruction character is C1, DAI information is mapped as to 2 index indication bit;
If A2. the index of described descending sub frame n instruction character is C2, ULI information is mapped as to 2 index indication bit;
If A3. the index of described descending sub frame n instruction character is C3, ULI/DAI integrated information is mapped as to 2 index indication bit;
-send the DCI that comprises described index indication bit at described descending sub frame n
Wherein, current up reference frame structure is tdd frame structure #0.
In traditional Cellular Networks or heterogeneous network, described uplink dispatch method can be completed by network equipment, for example base station, microcellulor, relaying, the equipment such as Home eNodeB.Equipment to the communication of equipment in, described uplink dispatch method can be completed by subscriber equipment, for example mobile phone, the equipment such as data card.
Concrete, according to an aspect of the present invention, if described descending sub frame n does not belong to the descending sub frame in tdd frame structure #0, determine that the index instruction character of described descending sub frame n is C1.
Concrete, according to an aspect of the present invention, if described descending sub frame n is the descending sub frame in tdd frame structure #0, determine that the index instruction character of described descending sub frame n is C2.
Concrete, according to an aspect of the present invention, it is characterized in that, also comprise the steps:
-receiving ACK/NACK in n+k subframe, the bit number of described ACK/NACK and mapping are that all possible descending sub frame by supposing described ACK/NACK instruction has all sent PDSCH and obtains, wherein k indicates by index indication bit.Concrete, according to a further aspect in the invention, it is characterized in that, if if 2 sub-frame of uplink that described descending sub frame n is descending sub frame in tdd frame structure #0 and described descending sub frame n can be dispatched are not all set to descending sub frame by frame structure configuration DCI, determine that the index instruction character of described descending sub frame n is C2;
Concrete, according to a further aspect in the invention, it is characterized in that, if if there is 1 to be set to descending sub frame by frame structure configuration DCI in 2 sub-frame of uplink that described descending sub frame n is descending sub frame in tdd frame structure #0 and described descending sub frame n can be dispatched, determine that the index instruction character of described descending sub frame n is C1
Concrete, according to a further aspect in the invention, it is characterized in that, also comprise the steps:
-receiving ACK/NACK in n+k subframe, the bit number of described ACK/NACK and mapping are that all possible descending sub frame by supposing described ACK/NACK instruction has all sent PDSCH and obtains, wherein k indicates by index indication bit.Concrete, according to another aspect of the invention, it is characterized in that, if described descending sub frame n is the descending sub frame in tdd frame structure #0, determine that the index instruction character of described descending sub frame n is C3.
Concrete, according to another aspect of the invention, if sub-frame of uplink n+k can be dispatched by descending sub frame n1 and descending sub frame n1 simultaneously, it is characterized in that:
If the target DAI value of described DCI instruction is 4 kinds of P kind values in DAI value, described descending sub frame n is described descending sub frame n1, and the P kind state of described P kind value and described index indication bit is corresponding one by one;
If the target DAI value of described DCI instruction is the 4-P kind value outside the described P kind value in 4 kinds of DAI values, described descending sub frame n is described descending sub frame n2, and the 4-P kind state of described 4-P kind value and described index indication bit is corresponding one by one.
Wherein, P is greater than 0 integer that is less than 4.Concrete, according to another aspect of the invention, it is characterized in that, if sub-frame of uplink n+k can only be dispatched by descending sub frame n, and described sub-frame of uplink n+k multipotency in a kind of frame structure carries the ACK/NACK for 1 descending sub frame, by the specific a kind of state instruction k in 4 kinds of states of 2 index indication bit representatives in the DCI sending on descending sub frame n.
Concrete, according to another aspect of the invention, it is characterized in that, if sub-frame of uplink n+k can only be dispatched by descending sub frame n, and described sub-frame of uplink n+k multipotency in a kind of frame structure carries for the ACK/NACK of descending sub frame that is greater than 1, by the three state instruction DAI value outside the described a kind of state in 4 kinds of states of 2 index indication bit representatives in the DCI sending on descending sub frame n.
Determine that this step of index instruction character can pass through accomplished in many ways, for example can obtain by real-time operation according to such scheme, or calculate index instruction character and save according to above-mentioned rule in advance, when follow-up needs, obtaining index instruction character by searching the data of preservation.
Concrete, according to a further aspect in the invention, it is characterized in that, also comprise the steps:
-receiving ACK/NACK in n+k subframe, the bit number of described ACK/NACK and mapping are that all possible descending sub frame by supposing described ACK/NACK instruction has all sent PDSCH and obtains, wherein k indicates by index indication bit.
The invention also discloses a kind of subscriber equipment, comprising:
The first module: be C1 for the index instruction character of determining descending sub frame n, C2, in C3 one;
The second module: for receiving DCI at described descending sub frame n
The 3rd module: for indicating character according to the index of described descending sub frame n, understand index indication bit by a step of carrying out in following steps:
If A1. the index of described descending sub frame n instruction character is C1, obtain DAI information by understanding described index indication bit;
If A2. the index of described descending sub frame n instruction character is C2, obtain ULI information by understanding described index indication bit;
If A3. the index of described descending sub frame n instruction character is C3, obtain ULI/DAI integrated information by understanding described index indication bit;
Wherein, current up reference frame structure is tdd frame structure #0.
As an embodiment,
Described descending sub frame n is the descending sub frame in tdd frame structure #0:
If 2 sub-frame of uplink that described descending sub frame n can dispatch are not all set to descending sub frame by frame structure configuration DCI, determine that the index instruction character of described descending sub frame n is C2; If there is 1 to be set to descending sub frame by frame structure configuration DCI in 2 sub-frame of uplink that described descending sub frame n can dispatch, determine that the index instruction character of described descending sub frame n is C1
As another embodiment, be that n is any one in 0,1,5,6 if described descending sub frame n is descending sub frame in tdd frame structure #0, determine that the index instruction character of described descending sub frame n is C2.
As an embodiment, the said equipment comprises four module: for sending ACK/NACK in n+k subframe, the bit number of described ACK/NACK and mapping are that all possible descending sub frame by supposing described ACK/NACK instruction has all sent PDSCH and obtains.
The invention also discloses a kind of network equipment, comprising:
The first module: be C1 for the index instruction character of determining descending sub frame n, C2, in C3 one;
The second module: for indicating character according to the index of described descending sub frame n, by a step of carrying out in following steps, index indication bit is set:
If A1. the index of described descending sub frame n instruction character is C1, DAI information is mapped as to index indication bit;
If A2. the index of described descending sub frame n instruction character is C2, ULI information is mapped as to index indication bit;
If A3. the index of described descending sub frame n instruction character is C3, ULI/DAI integrated information is mapped as to index indication bit;
The 3rd module: for send the DCI that comprises described index indication bit at described descending sub frame n
Wherein, current up reference frame structure is tdd frame structure #0.
As an embodiment, the said equipment also comprises four module: for receiving ACK/NACK in n+k subframe, the bit number of described ACK/NACK and mapping are that all possible descending sub frame by supposing described ACK/NACK instruction has all sent PDSCH and obtains.
The invention solves when comprising frame structure #0 or be frame structure #0 with reference to uplink frame structure in the frame structure of saltus step in TDD eIMTA scene, the problem of the ULI in uplink scheduling and the conflict of DAI bit, has at utmost kept the compatibility with existing system simultaneously.
Brief description of the drawings
By reading the detailed description that non-limiting example is done of doing with reference to the following drawings, other features, objects and advantages of the present invention will become more apparent:
Fig. 1 shows the method flow diagram for subscriber equipment according to an embodiment of the invention;
Fig. 2 shows the structured flowchart of the processing unit for UE according to an embodiment of the invention;
Fig. 3 shows the structured flowchart of the processing unit for base station according to an embodiment of the invention;
Embodiment
Below in connection with accompanying drawing, technical scheme of the present invention is described in further detail, it should be noted that, in the situation that not conflicting, the feature in the application's embodiment and embodiment can combine arbitrarily mutually.
Embodiment 1
Embodiment 1 has described the method flow for subscriber equipment.In step C31, subscriber equipment is determined the index instruction character C1 of subframe n, C2, and C3, different subframes can have different index instruction character, also can have identical index instruction character; In step C32, the DCI that subscriber equipment is dispatched according to the user uplink that receives subframe n transmission; In step C33, subscriber equipment is understood index indication bit information according to the index instruction character of subframe n, is DAI, ULI or simultaneously comprise DAI and ULI; In step C34, subscriber equipment, according to the index indication bit information of understanding, responds on corresponding sub-frame of uplink.Index indication information difference, the response mode difference of taking: if index indication bit is ULI, subscriber equipment is in the sub-frame of uplink response of its instruction, if index indication bit is DAI, subscriber equipment is designated as the ACK/NACK assignment of feedback in fixing subframe according to DAI.If index indication bit comprises DAI and ULI simultaneously, subscriber equipment is the ACK/NACK assignment of feedback according to the DAI of instruction on the sub-frame of uplink of its instruction.In step C34, if lack DAI information, UE determines ACK/NACK bit number and mapping according to the DAI value of maximum possible.
Embodiment 2
Embodiment 2 is the processing unit in a kind of UE, and comprising judge module 201, receiver module 202, separates read through model 203 and sending module 204, as shown in the processing unit 200 in accompanying drawing 2.Wherein sending module 204 is optional modules, identifies with dotted line.
Judge module 201: for determining index instruction character C1 or C2 or the C3 of descending sub frame n;
Receiver module 202: for receive the DCI that comprises index indication bit at described descending sub frame n
Separate read through model 203: for understanding index indication bit, if the index of described descending sub frame n instruction character is that for example n of C1(is 0 or 5), understand 2 index indication bit and obtain DAI; If the index of described descending sub frame n instruction character is that for example n of C3(is 1 or 6), understand 1 index indication bit and obtain part DAI information, understand another 1 index indication bit and obtain part ULI
Sending module 204: for sending ACK/NACK in the subframe ULI instruction (index instruction character is C2) or default (index instruction character is C1), if lack DAI, according to the reserved ACK/NACK bit number of maximum possible.
Embodiment 3
Embodiment 3 is the processing unit in a kind of base station equipment, comprising judge module 301, module 302 is set, and sending module 303 and receiver module 304, as shown in the processing unit 300 in accompanying drawing 3.Wherein receiver module 304 is optional modules, identifies with dotted line.
Judge module 301: for determining index instruction character C1 or the C2 of descending sub frame n;
Module 302 is set: for index indication bit is set, if the index of described descending sub frame n instruction character is that for example n of C1(is 0 or 5), DAI information is mapped as to 2 bits as index indication bit; If the index of described descending sub frame n instruction character is that for example n of C2(is 1 or 6), ULI information is mapped as to 2 bits as index indication bit
Sending module 303: for send the DCI that comprises described index indication bit at described descending sub frame n
Receiver module 304: for receiving the ACK/NACK for described DCI, if lack DAI, understand according to the reserved ACK/NACK bit of maximum possible.
One of ordinary skill in the art will appreciate that all or part of step in said method can carry out instruction related hardware by program and complete, described program can be stored in computer-readable recording medium, as read-only memory, and hard disk or CD etc.Optionally, all or part of step of above-described embodiment also can realize with one or more integrated circuit.Accordingly, the each modular unit in above-described embodiment, can adopt example, in hardware to realize, and also can be realized by the form of software function module, and the application is not limited to the combination of the software and hardware of any particular form.
The above, be only preferred embodiment of the present invention, is not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, to make any amendments, are equal to replacement, improve etc., within all should being included in protection scope of the present invention.
Claims (23)
1. for process a method of uplink subframe scheduling DCI at TDD subscriber equipment, it is characterized in that, comprise the steps:
-determine that the index instruction character of descending sub frame n is C1, C2, in C3 one
-receive the DCI for uplink scheduling at described descending sub frame n
-according to the index instruction character of described descending sub frame n, understand index indication bit by a step of carrying out in following steps:
If A1. the index of described descending sub frame n instruction character is C1, obtain DAI information by understanding described index indication bit;
If A2. the index of described descending sub frame n instruction character is C2, obtain ULI information by understanding described index indication bit;
If A3. the index of described descending sub frame n instruction character is C3, by understanding described index indication bit ULI/DAI integrated information;
Wherein, current up reference frame structure is tdd frame structure #0.
2. method according to claim 1, is characterized in that, if described descending sub frame n is the descending sub frame not belonging in tdd frame structure #0, determines that the index instruction character of described descending sub frame n is C1.
3. method according to claim 1, is characterized in that, if described descending sub frame n is the descending sub frame in tdd frame structure #0, determines that the index instruction character of described descending sub frame n is C2.
4. method according to claim 1, is characterized in that, if described descending sub frame n is the descending sub frame in tdd frame structure #0, determines that the index instruction character of described descending sub frame n is C3.
5. method according to claim 1, it is characterized in that, if described descending sub frame n is the descending sub frame in tdd frame structure #0, and 2 sub-frame of uplink that described descending sub frame n can dispatch are not all set to descending sub frame by frame structure configuration DCI, determine that the index instruction character of described descending sub frame n is C2.
6. method according to claim 1 or 5, it is characterized in that, if described descending sub frame n is the descending sub frame in tdd frame structure #0, and in 2 sub-frame of uplink that described descending sub frame n can dispatch, there is 1 to be set to descending sub frame by frame structure configuration DCI, determine that the index instruction character of described descending sub frame n is C1.
7. method according to claim 4, it is characterized in that, if sub-frame of uplink n+k can only be dispatched by descending sub frame n, and described sub-frame of uplink n+k multipotency in a kind of frame structure carries the ACK/NACK for 1 descending sub frame, if and the state of index indication bit representative in the upper DCI sending of the descending sub frame n that reads of solution meets specific a kind of state, obtain parameter k.
8. method according to claim 7, it is characterized in that, if sub-frame of uplink n+k can only be dispatched by descending sub frame n, and described sub-frame of uplink n+k multipotency in a kind of frame structure carries for the ACK/NACK that is greater than 1 descending sub frame, if and the state of index indication bit representative in the upper DCI sending of the descending sub frame n that reads of solution meets the one in the three state outside described a kind of state, obtain 3 kinds of one in DAI value.
9. according to the method described in claim 1 or 8, if sub-frame of uplink n+k can be dispatched by descending sub frame n1 and descending sub frame n2 simultaneously, it is characterized in that: if described descending sub frame n is described descending sub frame n1, the target DAI value of confirming described DCI instruction is 4 kinds of P kind values in DAI value, and the P kind state of described P kind value and described index indication bit is corresponding one by one;
If described descending sub frame n is described descending sub frame n2, confirm that the target DAI value of described DCI instruction is the 4-P kind value outside P kind value described in 4 kinds of DAI values, the 4-P kind state of described 4-P kind value and described index indication bit is corresponding one by one;
Wherein, P is greater than 0 integer that is less than 4.
10. the method described in one of them according to claim 3,4,5, is characterized in that, the method also comprises the steps:
Send ACK/NACK in n+k subframe, the bit number of described ACK/NACK and mapping are that all possible descending sub frame by supposing described ACK/NACK instruction has all sent PDSCH and obtains;
Wherein, k obtains by the index indication bit of understanding subframe n.
11. 1 kinds are carried out the method for subframe scheduling for TDD network equipment, it is characterized in that, comprise the following steps:
-determine that the index instruction character of descending sub frame n is C1, C2, in C3 one
-according to the index instruction character of described descending sub frame n, by a step of carrying out in following steps, index indication bit is set:
If A1. the index of described descending sub frame n instruction character is C1, DAI information is mapped as to 2 index indication bit;
If A2. the index of described descending sub frame n instruction character is C2, ULI is mapped as to 2 index indication bit;
If A3. the index of described descending sub frame n instruction character is C3, ULI/DAI integrated information is mapped as to 2 index indication bit;
-send the DCI that comprises described index indication bit at described descending sub frame n
Wherein, current up reference frame structure is tdd frame structure #0.
12. methods according to claim 11, is characterized in that, if described descending sub frame n is the descending sub frame in tdd frame structure #0, determine that the index instruction character of described descending sub frame n is C2.
13. methods according to claim 11, is characterized in that, if described descending sub frame n is the descending sub frame in tdd frame structure #0, determine that the index instruction character of described descending sub frame n is C3.
14. methods according to claim 11, it is characterized in that, if described descending sub frame n is the descending sub frame in tdd frame structure #0, and 2 sub-frame of uplink that described descending sub frame n can dispatch are not all set to descending sub frame by frame structure configuration DCI, the index instruction character of described descending sub frame n is C2.
15. according to the method described in claim 11 or 14, it is characterized in that, if described descending sub frame n is the descending sub frame in tdd frame structure #0, and in 2 sub-frame of uplink that described descending sub frame n can dispatch, there is 1 to be set to descending sub frame by frame structure configuration DCI, determine that the index instruction character of described descending sub frame n is C1.
16. methods according to claim 13, it is characterized in that, if sub-frame of uplink n+k can only be dispatched by descending sub frame n, and described sub-frame of uplink n+k multipotency in a kind of frame structure carries the ACK/NACK for 1 descending sub frame, by the specific a kind of state instruction k in 4 kinds of states of 2 index indication bit representatives in the DCI sending on descending sub frame n.
17. methods according to claim 16, it is characterized in that, if sub-frame of uplink n+k can only be dispatched by descending sub frame n, and described sub-frame of uplink n+k multipotency in a kind of frame structure carries for the ACK/NACK of descending sub frame that is greater than 1, by the three state instruction DAI value outside the described a kind of state in 4 kinds of states of 2 index indication bit representatives in the DCI sending on descending sub frame n.
18. according to the method described in claim 11 or 17, if sub-frame of uplink n+k can be dispatched by descending sub frame n1 and descending sub frame n2 simultaneously, it is characterized in that:
If the target DAI value of described DCI instruction is 4 kinds of P kind values in DAI value, described descending sub frame n is described descending sub frame n1, and the P kind state of described P kind value and described index indication bit is corresponding one by one;
If the target DAI value of described DCI instruction is the 4-P kind value outside the described P kind value in 4 kinds of DAI values, described descending sub frame n is described descending sub frame n2, and the 4-P kind state of described 4-P kind value and described index indication bit is corresponding one by one;
Wherein, P is greater than 0 integer that is less than 4.
19. according to the wherein method described in of claim 12,13,14, it is characterized in that, the method also comprises the steps:
Meet ACK/NACK in n+k subframe, described ACK/NACK is based on having sent the mapping that PDSCH carries out on all possible descending sub frame of hypothesis;
Wherein, the index indication bit instruction that k sends by subframe.
20. 1 kinds of subscriber equipmenies, is characterized in that, this equipment comprises:
The first module: the index instruction character of determining descending sub frame n is C1, C2, in C3 one;
The second module: receive DCI at described descending sub frame n
The 3rd module: according to the index instruction character of described descending sub frame n, understand index indication bit by a step of carrying out in following steps:
If A1. the index of described descending sub frame n instruction character is C1, obtain DAI information by understanding described index indication bit;
If A2. the index of described descending sub frame n instruction character is C2, obtain ULI information by understanding described index indication bit;
If A3. the index of described descending sub frame n instruction character is C3, obtain ULI/DAI integrated information by understanding described index indication bit;
Wherein, current up reference frame structure is tdd frame structure #0.
21. equipment as claimed in claim 20, is characterized in that, this equipment also comprises:
Four module: send ACK/NACK in n+k subframe, the bit number of described ACK/NACK and mapping are that all possible descending sub frame by supposing described ACK/NACK instruction has all sent PDSCH and obtains.
22. 1 kinds of network equipments, is characterized in that, this equipment comprises:
The first module: the index instruction character of determining descending sub frame n is C1, C2, in C3 one;
The second module: according to the index instruction character of described descending sub frame n, by a step of carrying out in following steps, index indication bit is set:
If A1. the index of described descending sub frame n instruction character is C1, DAI is mapped as to index indication bit;
If A2. the index of described descending sub frame n instruction character is C2, ULI information is mapped as to index indication bit;
If A3. the index of described descending sub frame n instruction character is C3, ULI/DAI integrated information is mapped as to index indication bit;
The 3rd module: send the DCI that comprises described index indication bit at described descending sub frame n;
Wherein, current up reference frame structure is tdd frame structure #0.
23. equipment as claimed in claim 22, is characterized in that, this equipment also comprises:
Four module: receive ACK/NACK in n+k subframe, the bit number of described ACK/NACK and mapping are that all possible descending sub frame by supposing described ACK/NACK instruction has all sent PDSCH and obtains.
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| CN201410141087.4A CN104105213B (en) | 2013-04-10 | 2014-04-09 | Dispatching method and device in a kind of mobile communication system |
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| CN201410141087.4A CN104105213B (en) | 2013-04-10 | 2014-04-09 | Dispatching method and device in a kind of mobile communication system |
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| WO2017193268A1 (en) * | 2016-05-09 | 2017-11-16 | 华为技术有限公司 | Uplink data transmission method, terminal device, and network device |
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Also Published As
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| WO2014166301A8 (en) | 2014-12-04 |
| CN104105213B (en) | 2019-05-31 |
| WO2014166301A1 (en) | 2014-10-16 |
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