CN102271034A - Long term evolution (LTE) uplink hybrid automatic repeat request (HARQ) control method - Google Patents
Long term evolution (LTE) uplink hybrid automatic repeat request (HARQ) control method Download PDFInfo
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Abstract
The invention discloses a long term evolution (LTE) uplink hybrid automatic repeat request (HARQ) control method, which comprises the following steps of: acquiring mapping relationships between HARQ queues used for uplink HARQ transmission and subsequently possible physical hybrid ARQ indicator channel (PHICH) sub-frames for the HARQ queues according to time sequence relationships in an HARQ transmission process by using user equipment (UE); when the UE detects 0-format downlink control information (DCI0), computing sub-frame numbers of the PHICH sub-frames corresponding to the same HARQ queue before the DCI0 according to J; finding a corresponding HARQ queue by utilizing the mapping relationships; and performing uplink HARQ transmission according to the received DCI0 and the DCI0 information stored in the HARQ queue, and updating parameters in the HARQ queue. By the technical scheme, the UE still can finish repeating the uplink HARQ transmission after the misunderstanding of PHICK negative acknowledgement (NACK) as PHICH ACK in an uplink HARQ transmission process to avoid the failure of an HARQ transmission mechanism.
Description
Technical field
(be called for short, the LTE) data transmission technology of system specially refers to a kind of LTE ascending HARQ control method to the present invention relates to Long Term Evolution.
Background technology
The evolution accessing network that the general continental rise wireless access network E-UTRAN of evolution is general continental rise wireless access network UTRAN, its access technology that adopts is called the LTE technology, difference according to duplex mode, LTE can be divided into two kinds of systems: time division duplex LTE (is called for short, TDD-LTE) system, Frequency Division Duplexing (FDD) (are called for short FDD-LTE) system.
Mix automatically to retransmit and (be called for short, HARQ) a kind of transmission technology of technology mobile communication system extensive use, time-domain position according to the HARQ transmission can be divided into HARQ synchronous HARQ and asynchronous HARQ, and the configuration of transmitting according to HARQ can be divided into HARQ adaptive HARQ and non-self-adapting HARQ again; Ascending HARQ is the synchronous HARQ mode that self adaptation and non-self-adapting combine among the LTE, and synchronous HARQ is meant that the transmission time-domain position of each HARQ is limited on the predefined time slot position; According to the description of 3GPP TS 36.213 standards, sequential relationship as shown in Figure 1 in the ascending HARQ transmission course: network (is called for short, DCI0) sends resource for UE distributes ascending HARQ by form 0 Downlink Control Information; Portable terminal (is called for short, UE) after receiving DCI0, the capable physically shared channel of indication according to DCI0 (is called for short, PUSCH) carrying out the ascending HARQ data sends, network (is called for short at the Physical HARQ Indicator Channel of the pairing subframe of this PUSCH, PHICH) go up to send feedback information and/or (be called for short, PDCCH) go up the DCI0 information that sends at the Physical Downlink Control Channel of the pairing subframe of this PUSCH; For a HARQ formation, when UE receives DCI0 or the PHICH feedback information indication new biography on the PDCCH or retransmits, the PUSCH that is fixed on PHICH place subframe J+K subframe afterwards carries out upstream data and sends, be fixed on transmission PUSCH subframe L subframe afterwards and receive corresponding PHICH, be fixed on and send PUSCH subframe L+J subframe reception DCI0 afterwards.
Wherein, preserved following information in the described HARQ formation:
1) formation ID;
2) data address is deposited this PUSCH and upward (is called for short, data_adr) address of the MAC PDU of carrying;
3) this sends the subframe numbers (being called for short PUSCH_FN, scope from 0 to 10239) of PUSCH, and the subframe numbers of reception next time PHICH (is called for short, PHICH_FN);
4) DCI0 authorization message comprises transformat, NDI sign etc.
To the TDD-LTE system, K, the subframe numbers decision that L is sent by TDD up-downgoing proportioning and upstream data, J=0 under attitude scheduling scene, the subframe numbers decision that J is sent by up-downgoing proportioning and upstream data under TTI binding scheduling scene.
To the FDD-LTE system, its up-downgoing proportioning is fixed, K=L=4 under the dynamic dispatching scene, J=0, K=4 under TTI binding scheduling scene, L=7, J=5.
Simultaneously, for same HARQ formation, its relation that may send between the subframe numbers of upstream data is also fixed.
Its pass that may send between the subframe numbers of upstream data is:
SfnPusch
2 i＝SfnPusch
1 i+N*(K+L+J)
Wherein, SfnPusch
1 iFor this sends the subframe numbers of upstream data; SfnPusch
2 iBe the follow-up subframe numbers that can use identical HARQ formation to send upstream data; N 〉=1.
Wherein, when described TTI binding scheduling scene is illustrated in the up transmission of HARQ, same HARQ is used for continuous 4 PUSCH and sends data, in TTI binding scheduling scene, above-mentioned each subframe numbers is represented continuous 4 subframe numbers that send first PUSCH among the data PUSCH in the up transmission of HARQ.
Prior LTE system ascending HARQ control method realization flow is:
1, UE detects the PDCCH channel at each descending sub frame;
2, when detecting DCI0, UE inquires about each HARQ formation;
If 3 have the HARQ formation that is associated with the DCI0 that receives, whether the NDI of NDI sign of then relatively being preserved in this HARQ formation and the DCI0 that receives identifies identical;
If 4 NDI identify different, carry out ascending HARQ on the PUSCH channel of K the subframe of MAC PDU after the subframe of described DCI0 place that the UE assembling is new and transmit new biography;
If NDI sign is identical, UE will use on the PUSCH channel of K the subframe of MAC PDU the subframe of described DCI0 place after that this HARQ formation sends and carry out ascending HARQ transmission re-transmission last time;
If 5 do not find the HARQ formation that is associated with the DCI0 that receives, UE will select the HARQ formation of a free time, assemble to carry out ascending HARQ on the PUSCH channel of K the subframe of new MAC PDU after the subframe of described DCI0 place and transmit new biography;
Wherein, described being associated is meant that the PHICH_FN+J that the HARQ formation is preserved is identical with the DCI0 place subframe numbers that receives;
6, UE with this pairing next PHICH of PUSCH place subframe numbers, this PUSCH that sends upstream data receive subframe numbers, this sends the data address of data and DCI0 information that this receives and records this and send in the employed HARQ formation;
7, UE detects PHICH on the descending sub frame of the PHICH reception subframe numbers correspondence that described HARQ formation is preserved;
(be called for short, ACK) information illustrates that network correctly receives these data that sent of UE, and UE no longer upgrades the information in the described HARQ formation if 8 detect affirmation;
If 9 detect non-affirmation (be called for short, NACK) information or do not detect information, UE will retransmit the pairing MAC PDU of described HARQ formation on the pairing next PUSCH subframe of this PHICH place subframe; Return step 6.
In the ascending HARQ process of transmitting, network is after having carried out once indicating UE to carry out ascending HARQ transmission (new biography or re-transmission), if on the PUSCH of regulation subframe channel, do not receive the data of UE transmission or the error in data of reception, network can send nack message on the PHICH of this PUSCH correspondence, require UE data retransmission on the PUSCH of next one regulation, if still can not correctly receive the data that UE sends on the PUSCH of next one regulation, network can send NACK once more; If through above-mentioned mutual several times, still can not correctly receive the data that UE sends, network can send DCI0 and reconfigure UE ascending HARQ transmission resource, requires UE according to the resource data retransmission that reconfigures.
From the ascending HARQ control method realization flow of prior art as can be seen, if UE is the situation of ACK information with the nack message flase drop that network sends, UE will no longer upgrade the information in the pairing HARQ formation of this PHICH, can be not again on the PHICH channel of the follow-up subframe that the corresponding PHICH information of this HARQ formation may occur, do not detect feedback information at this HARQ formation yet, like this for network after the NACK feedback information that sends once more at this HARQ formation, UE can't detect and respond, and for the PDDCH channel, UE will detect always; When network still can't correctly receive the data that UE sends through PHICH feedback for several times and when sending DCI0 and requiring UE to retransmit, after UE receives this DCI0, because the information in the HARQ formation is not upgraded, therefore UE can't find the HARQ formation that is associated with this DCI0, UE can select the HARQ formation of a free time and assemble new MAC PDU and carry out the ascending HARQ transmission at this moment, but the MAC PDU that should newly assemble, network also can be resolved incorrect, because the MAC PDU that retransmitted the last time that the network expectation receives, can cause the HARQ transmission mechanism to lose efficacy like this, make data transmission fails.
Summary of the invention
In view of this, the present invention proposes a kind of LTE ascending HARQ control method, to solve the problem that prior art exists because UE is misinterpreted as nack message the HARQ transmission mechanism inefficacy that ACK information causes.
Technical scheme of the present invention is:
UE sends the HARQ formation used and the follow-up mapping relations that may exist at the subframe of the PHICH of this HARQ formation obtaining ascending HARQ according to HARQ transmission course sequential relationship;
When UE detects DCI0 information, calculate the subframe numbers of the PHICH subframe of corresponding identical HARQ formation before this DCI0 according to J; Utilize described mapping relations to find corresponding HARQ formation;
Carry out ascending HARQ according to the DCI0 information of preserving in DCI0 information that receives and the described HARQ formation and send, upgrade data_adr, PUSCH_FN, PHICH_FN, DCI0 authorization message in the HARQ formation; Being provided with and detecting number of times is 0.
What wherein, described J was a DCI0 place subframe subframe numbers with the PHICH subframe subframe numbers of corresponding identical HARQ formation before this subframe is poor;
Describedly obtain described ascending HARQ according to HARQ transmission course sequential relationship and send the HARQ formation used and follow-uply may exist mapping relations further to comprise at the subframe of the PHICH of this HARQ formation or DCI0:
If UE is carrying out detecting PHICH ACK information in the PHICH_FN subframe after ascending HARQ sends;
Step 1, UE add that with the PHICH_FN in the described HARQ formation K+L+J is saved in the HARQ formation as PHICH_FN;
Step 2, described detection number of times is added 1; If detect the maximum retransmission N of number of times less than network configuration, continue execution in step 3, otherwise detecting number of times, UE is set to 0, finish this and obtain the mapping relations handling process;
Step 3, in the PHICH_FN subframe, UE detects the PHICH channel;
If step 4 UE detects PHICH ACK information or do not detect the PHICH feedback information, return step 1; If UE detects the PHICH nack message, UE finds out the identical HARQ formation of subframe numbers of PHICH_FN and described PHICH nack message place subframe, uses data corresponding in the described HARQ formation to carry out ascending HARQ on the PHICH_FN+K+J subframe and sends and retransmit; The PUSCH_FN, the PHICH_FN that upgrade in the described HARQ formation receive current transmission place subframe numbers and next time the PHICH subframe numbers;
Wherein, described K is at interval a number of sub frames between the PUSCH of described HARQ transmission course sequential relationship defined and its pairing DCI0; L is at interval a number of sub frames between the PHICH of described HARQ transmission course sequential relationship defined and its pairing PUSCH; Its value is by the subframe numbers decision of concrete LTE system, scheduling scene, up proportioning and PUSCH place subframe.
Describedly obtain described ascending HARQ according to HARQ transmission course sequential relationship and send the HARQ formation used and follow-uply may exist mapping relations further to comprise at the subframe of the PHICH of this HARQ formation or DCI0:
If UE is carrying out detecting PHICH ACK information in the PHICH_FN subframe after ascending HARQ sends;
Step 1, UE add that with the PHICH_FN in the described HARQ formation K+L+J is saved in the HARQ formation as PHICH_FN;
Step 2, UE add 1 with described detection number of times; If detect the maximum retransmission N of number of times less than network configuration, continue execution in step 3, otherwise detecting number of times, UE is set to 0, finish this and obtain the mapping relations handling process;
Step 3, UE judge whether detect number of times detects number of times M greater than default maximum; If, execution in step 4; Otherwise execution in step 5;
Step 4, in the PHICH_FN subframe, UE adds that with the PHICH_FN in the described HARQ formation K+L+J is saved in the HARQ formation as PHICH_FN, returns step 2;
Step 5, in the PHICH_FN subframe, UE detects the PHICH channel;
If step 6 UE detects PHICH ACK information or do not detect the PHICH feedback information, return step 1; If UE detects the PHICH nack message, UE finds out the identical HARQ formation of subframe numbers of PHICH_FN and described PHICH nack message place subframe, uses data corresponding in the described HARQ formation to carry out ascending HARQ on the PHICH_FN+K+J subframe and sends and retransmit; Upgrade PUSCH_FN, PHICH_FN in the described HARQ formation;
Wherein, described K is at interval a number of sub frames between the PUSCH of described HARQ transmission course sequential relationship defined and its pairing DCI0; L is at interval a number of sub frames between the PHICH of described HARQ transmission course sequential relationship defined and its pairing PUSCH; Its value is by the subframe numbers decision of concrete LTE system, scheduling scene, up proportioning and PUSCH place subframe;
The span of described M is 0～N-1.
Describedly obtain described ascending HARQ according to HARQ transmission course sequential relationship and send the HARQ formation used and follow-uply may exist mapping relations further to comprise at the subframe of the PHICH of this HARQ formation or DCI0:
UE is being respectively HARQ formation of each initial uplink subframe numbers distribution under the different up-downgoing proportionings and under the scheduling scene;
UE is according to the HARQ formation of initial p HICH subframe numbers correspondence, set up and be kept under the different up-downgoing proportionings respectively and the scheduling scene under each HARQ formation and its might receive the mapping table of the subframe numbers of PHICH information;
The mapping relations of described mapping table are, a HARQ formation might receive PHICH information subframe numbers equal initial p HICH subframe numbers+N * (K+L+J); N 〉=0;
Wherein, described initial p HICH subframe numbers is under the described up-downgoing proportioning and the (sub-frame of uplink number+L) %10 of scheduling under the scene;
Described K is at interval a number of sub frames between the PUSCH of described HARQ transmission course sequential relationship defined and its pairing DCI0; L is at interval a number of sub frames between the PHICH of described HARQ transmission course sequential relationship defined and its pairing PUSCH; Its value is by the subframe numbers decision of concrete LTE system, scheduling scene, up proportioning and PUSCH place subframe.
Technical scheme of the present invention sends the HARQ formation used and the follow-up mapping relations that may exist at the subframe of the PHICH of this HARQ formation or DCI0 by obtain described ascending HARQ according to HARQ transmission course sequential relationship, make that UE occurs PHICH NACK is misinterpreted as PHICH ACK in the ascending HARQ transmission course after, still can finish ascending HARQ and send re-transmission, avoid the HARQ transmission mechanism to lose efficacy.
Description of drawings
Fig. 1 is an ascending HARQ transmission course timing diagram
Fig. 2 is a prior art ascending HARQ control method flow chart
Fig. 3 is the specific embodiment of the invention 1 method flow diagram
Fig. 4 is the specific embodiment of the invention 2 method flow diagrams
Fig. 5 is the specific embodiment of the invention 3 method flow diagrams
Embodiment
For further specifying technical scheme of the present invention, provide specific embodiment below and also describe in detail in conjunction with the accompanying drawings.
Specific embodiment 1
Present embodiment is a kind of preferred implementation of the present invention in the FDD-LTE system, and idiographic flow as shown in Figure 3.
1, UE carries out an ascending HARQ transmission; The PUSCH_FN=that the HARQ formation is set sends the subframe numbers of data, and PHICH_FN=sends the subframe numbers+L of data;
2, at PHICH_FN, UE detects PHICH, if detect PHICH ACK information, execution in step 3 sends re-transmission otherwise UE carries out ascending HARQ in the PHICH_FN+K+J subframe, upgrades the parameter in the HARQ formation;
3, UE sends the HARQ formation used and the follow-up mapping relations that may exist at the subframe of the PHICH of this HARQ formation obtaining ascending HARQ according to HARQ transmission course sequential relationship;
301, UE adds that with the PHICH_FN in the described HARQ formation K+L+J is saved in the HARQ formation as PHICH_FN;
Wherein, described K, L and J determine according to concrete LTE system, up-downgoing proportioning, the PUSCH subframe numbers that sends data and scheduling scene;
In the present embodiment, described LTE system is the FDD-LTE system, K=L=4 under the dynamic dispatching scene, J=0, K=4 under the TTI binding scheduling scene, L=7, J=5;
302, described detection number of times is added 1; If detect the maximum retransmission N of number of times less than network configuration, continue execution in step 3, otherwise detecting number of times, UE is set to 0, finish this and obtain the mapping relations handling process;
303, in the PHICH_FN subframe, UE detects the PHICH channel;
If 304 UE detect PHICH ACK information or do not detect the PHICH feedback information, return step 1; If UE detects the PHICH nack message, UE finds out the identical HARQ formation of subframe numbers of PHICH_FN and described PHICH nack message place subframe, uses data corresponding in the described HARQ formation to carry out ascending HARQ on the PHICH_FN+K+J subframe and sends and retransmit; The PUSCH_FN, the PHICH_FN that upgrade in the described HARQ formation receive current transmission place subframe numbers and next time the PHICH subframe numbers;
4, when UE detects DCI0 information, calculate the subframe numbers of the PHICH subframe before this DCI0 according to J; Utilize described mapping relations to find corresponding HARQ formation;
UE searches the HARQ formation that PHICH_FN=detects subframe subframe numbers-J of DCI0, and this HARQ formation is the HARQ formation that is associated with detected DCI0;
5, carry out ascending HARQ according to the DCI0 information of preserving in detected DCI0 information and the described HARQ formation and send, upgrade the parameter in the HARQ formation; Being provided with and detecting number of times is 0.
Parameter in the described renewal HARQ formation comprises that the data_adr of this HARQ formation of UE is set to this memory address that sends data; PUSCH_FN is set to the subframe numbers that this ascending HARQ sends; PHICH_FN is set to PUSCH_FN+L; The DCI0 authorization message is set to described detected DCI0 authorization message.
Specific embodiment 2
Present embodiment is a kind of preferred implementation of the present invention in the TDD-LTE system, and idiographic flow as shown in Figure 4.
Step 1～2 are identical with specific embodiment 1;
3, UE sends the HARQ formation used and the follow-up mapping relations that may exist at the subframe of the PHICH of this HARQ formation obtaining ascending HARQ according to HARQ transmission course sequential relationship;
311, UE detects the PHICH_FN in the described HARQ formation and adds that K+L+J is saved in the HARQ formation as PHICH_FN;
Wherein, described K, L and J determine according to the up-downgoing proportioning of this ascending HARQ transmission of TDD-LTE system, the PUSCH subframe numbers that sends data and scheduling scene;
312, UE adds 1 with described detection number of times; If detect the maximum retransmission N of number of times less than network configuration, continue execution in step 3, otherwise detecting number of times, UE is set to 0, finish this and obtain the mapping relations handling process;
313, UE judges whether detect number of times detects number of times M greater than default maximum; If, execution in step 4; Otherwise execution in step 5;
Described M detects number of times for default maximum, and span is 0～N-1;
314, in the PHICH_FN subframe, UE adds that with the PHICH_FN in the described HARQ formation K+L+J is saved in the HARQ formation as PHI CH_FN, returns step 2;
315, in the PHICH_FN subframe, UE detects the PHICH channel;
If 316 UE detect PHICH ACK information or do not detect PHI CH feedback information, return step 1; If UE detects the PHICH nack message, UE finds out the identical HARQ formation of subframe numbers of PHICH_FN and described PHICH nack message place subframe, uses data corresponding in the described HARQ formation to carry out ascending HARQ on the PHICH_FN+K+J subframe and sends and retransmit; Upgrade PUSCH_FN, PHICH_FN in the described HARQ formation;
Step 4～5 are identical with specific embodiment 1.
Parameter in the described renewal HARQ formation comprises that the data_adr of this HARQ formation of UE is set to this memory address that sends data; PUSCH_FN is set to the subframe numbers that this ascending HARQ sends; PHICH_FN is set to PUSCH_FN+L; The DCI0 authorization message is set to described detected DCI0 authorization message.
Specific embodiment 3
The present embodiment idiographic flow as shown in Figure 5.
1, UE sends the HARQ formation used and the follow-up mapping relations that may exist at the subframe of the PHICH of this HARQ formation obtaining ascending HARQ according to HARQ transmission course sequential relationship;
111, UE is being respectively HARQ formation of each initial uplink subframe numbers distribution under the different up-downgoing proportionings and under the scheduling scene;
Wherein, described initial p HICH subframe numbers is under the described up-downgoing proportioning and the (sub-frame of uplink number+L) %10 of scheduling under the scene;
111, UE according to the HARQ formation of initial p HICH subframe numbers correspondence set up and be kept under the different up-downgoing proportionings respectively and the scheduling scene under each HARQ formation and its might receive the mapping table of the subframe numbers of PHICH information;
The mapping relations of described mapping table are, a HARQ formation might receive PHICH information subframe numbers equal initial p HICH subframe numbers+N * (K+L+J); N 〉=0;
In the present embodiment, described mapping table is set to the pairing HARQ formation of PHICH subframe numbers %Period ID under different upset number of times %Repeat situations;
To the TDD-LTE system: under the dynamic dispatching scene, the Period=10 of proportioning 1～5, Repeat=1; The Period=70 of proportioning 0, Repeat=7; The Period=60 of proportioning 6, Repeat=3;
Under the TTI binding scheduling scene, the Period=20 of proportioning 1, Repeat=1; The Period=70 of proportioning 0, Repeat=7; The Period=60 of proportioning 6, Repeat=3;
To the FDD-LTE system: under the dynamic dispatching scene, Period=8, Repeat=1; Under the TTI binding scheduling scene, Period=16, Repeat=1;
Wherein, described upset number of times is, subframe numbers count down to the maximum subframe numbers number of times of counting again later on, and in the LTE system, the span of subframe numbers is 0～10239, and when subframe numbers reached 10239, the upset of the subframe numbers of next subframe was 0, again counting;
2, when UE detects DCI0 information, calculate the subframe numbers of the PHICH subframe before this DCI0 according to J; Utilize described mapping relations to find corresponding HARQ formation;
UE determines current upset number of times; Determine Period and Repeat according to scheduling scene, up-downgoing proportioning;
UE calculates and (to detect the value of %10 of the subframe subframe numbers of DCI0-J);
UE is according to the upset number of times and (detect that the subframe subframe numbers of DCI0-J) value of %Period is searched corresponding HARQ formation in the mapping table of corresponding proportioning and scheduling scene, this HARQ formation is the HARQ formation that is associated with detected DCI0;
3, carry out ascending HARQ according to the DCI0 information of preserving in detected DCI0 information and the described HARQ formation and send, upgrade the parameter in the HARQ formation; Being provided with and detecting number of times is 0.
4, at PHICH_FN, UE detects PHICH, if detect the PHICH nack message or do not detect PHICH information, UE carries out ascending HARQ in the PHICH_FN+K+J subframe and sends re-transmission, upgrades the parameter in the HARQ formation;
Parameter in the described renewal HARQ formation comprises that the data_adr of this HARQ formation of UE is set to this memory address that sends data; PUSCH_FN is set to the subframe numbers that this ascending HARQ sends; PHICH_FN is set to PUSCH_FN+L; The DCI0 authorization message is set to described detected DCI0 authorization message.
In the present embodiment, UE carries out PHICH place subframe and HARQ formation related, forms mapping table between the two, after detecting DCI0, can find the HARQ formation that is associated with this DCI0 according to DCI0 fast with relation between the PHICH subframe, further improve system effectiveness.Simultaneously, can obtain by 3GPP TS 36.213 agreements, under different up-downgoing proportionings and scheduling scene, a cycle that repeat the position of the PHICH subframe numbers that corresponding different upset number of times is associated with the specific HARQ formation, present embodiment was simplified mapping table according to this cycle, had saved data space and query time.
One of ordinary skill in the art obviously should be known and be understood, the inventive method for above embodiment only be used to illustrate the inventive method, and be not limited to the inventive method.Though effectively described the present invention by embodiment, also there are many variations in the present invention and do not break away from spirit of the present invention.Without departing from the spirit and substance of the case in the method for the present invention, those skilled in the art work as can make various corresponding changes or distortion according to the inventive method, but these corresponding changes or distortion all belong to the claim protection range of the inventive method.
Claims (4)
1. a LTE ascending HARQ control method is characterized in that, comprising:
Mobile terminal UE is retransmitting HARQ transmission course sequential relationship automatically and obtains ascending HARQ and send the HARQ formation used and the follow-up mapping relations that may exist at the subframe of the Physical HARQ Indicator Channel PHICH of this HARQ formation according to mixing;
When UE detects form 0 Downlink Control Information DCI0, calculate the subframe numbers of the PHICH subframe of corresponding identical HARQ formation before this DCI0 according to J; Utilize described mapping relations to find corresponding HARQ formation;
Carry out ascending HARQ according to the DCI0 information of preserving in DCI0 information that receives and the described HARQ formation and send, upgrade data address, this transmission Physical Uplink Shared Channel PUSCH subframe numbers, reception next time PHICH subframe numbers, DCI0 authorization message in the HARQ formation; Being provided with and detecting number of times is 0.
What wherein, described J was described DCI0 subframe numbers with the PHICH subframe numbers of corresponding identical HARQ formation before this subframe is poor.
2. a kind of LTE ascending HARQ control method according to claim 1, it is characterized in that, describedly obtain described ascending HARQ according to HARQ transmission course sequential relationship and send the HARQ formation used and follow-uply may exist mapping relations further to comprise at the subframe of the PHICH of this HARQ formation or DCI0:
If UE is carrying out detecting PHICH ACK information in the PHICH_FN subframe after ascending HARQ sends;
Step 1, UE add that with the PHICH_FN in the described HARQ formation K+L+J is saved in the HARQ formation as PHICH_FN;
Step 2, described detection number of times is added 1; If detect the maximum retransmission N of number of times less than network configuration, continue execution in step 3, otherwise detecting number of times, UE is set to 0, finish this and obtain the mapping relations handling process;
Step 3, in the PHICH_FN subframe, UE detects the PHICH channel;
If step 4 UE detects PHICH ACK information or do not detect the PHICH feedback information, return step 1; If UE detects the PHICH nack message, UE finds out the identical HARQ formation of subframe numbers of PHICH_FN and described PHICH nack message place subframe, uses data corresponding in the described HARQ formation to carry out ascending HARQ on the PHICH_FN+K+J subframe and sends and retransmit; The PUSCH_FN, the PHICH_FN that upgrade in the described HARQ formation receive current transmission place subframe numbers and next time the PHICH subframe numbers;
Wherein, described K is at interval a number of sub frames between the PUSCH of described HARQ transmission course sequential relationship defined and its pairing DCI0; L is at interval a number of sub frames between the PHICH of described HARQ transmission course sequential relationship defined and its pairing PUSCH; Its value is by the subframe numbers decision of concrete LTE system, scheduling scene, up proportioning and PUSCH place subframe.
3. a kind of LTE ascending HARQ control method according to claim 1, it is characterized in that, describedly obtain described ascending HARQ according to HARQ transmission course sequential relationship and send the HARQ formation used and follow-uply may exist mapping relations further to comprise at the subframe of the PHICH of this HARQ formation or DCI0:
If UE is carrying out detecting PHICH ACK information in the PHICH_FN subframe after ascending HARQ sends;
Step 1, UE add that with the PHICH_FN in the described HARQ formation K+L+J is saved in the HARQ formation as PHICH_FN;
Step 2, UE add 1 with described detection number of times; If detect the maximum retransmission N of number of times less than network configuration, continue execution in step 3, otherwise detecting number of times, UE is set to 0, finish this and obtain the mapping relations handling process;
Step 3, UE judge whether detect number of times detects number of times M greater than default maximum; If, execution in step 4; Otherwise execution in step 5;
Step 4, in the PHICH_FN subframe, UE adds that with the PHICH_FN in the described HARQ formation K+L+J is saved in the HARQ formation as PHICH_FN, returns step 2;
Step 5, in the PHICH_FN subframe, UE detects the PHICH channel;
If step 6 UE detects PHICH ACK information or do not detect the PHICH feedback information, return step 1; If UE detects the PHICH nack message, UE finds out the identical HARQ formation of subframe numbers of PHICH_FN and described PHICH nack message place subframe, uses data corresponding in the described HARQ formation to carry out ascending HARQ on the PHICH_FN+K+J subframe and sends and retransmit; Upgrade PUSCH_FN, PHICH_FN in the described HARQ formation;
Wherein, described K is at interval a number of sub frames between the PUSCH of described HARQ transmission course sequential relationship defined and its pairing DCI0; L is at interval a number of sub frames between the PHICH of described HARQ transmission course sequential relationship defined and its pairing PUSCH; Its value is by the subframe numbers decision of concrete LTE system, scheduling scene, up proportioning and PUSCH place subframe;
The span of described M is 0～N-1.
4. a kind of LTE ascending HARQ control method according to claim 1, it is characterized in that, describedly obtain described ascending HARQ according to HARQ transmission course sequential relationship and send the HARQ formation used and follow-uply may exist mapping relations further to comprise at the subframe of the PHICH of this HARQ formation or DCI0:
UE is being respectively HARQ formation of each initial uplink subframe numbers distribution under the different up-downgoing proportionings and under the scheduling scene;
UE is according to the HARQ formation of initial p HICH subframe numbers correspondence, set up and be kept under the different up-downgoing proportionings respectively and the scheduling scene under each HARQ formation and its might receive the mapping table of the subframe numbers of PHICH information;
The mapping relations of described mapping table are, a HARQ formation might receive PHICH information subframe numbers equal initial p HICH subframe numbers+N * (K+L+J); N 〉=0;
Wherein, described initial p HICH subframe numbers is under the described up-downgoing proportioning and the (sub-frame of uplink number+L) %10 of scheduling under the scene;
Described K is at interval a number of sub frames between the PUSCH of described HARQ transmission course sequential relationship defined and its pairing DCI0; L is at interval a number of sub frames between the PHICH of described HARQ transmission course sequential relationship defined and its pairing PUSCH; Its value is by the subframe numbers decision of concrete LTE system, scheduling scene, up proportioning and PUSCH place subframe.
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