CN104243109A - Uplink data mixed automatic retransmission request information indication method - Google Patents
Uplink data mixed automatic retransmission request information indication method Download PDFInfo
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- CN104243109A CN104243109A CN201310224947.6A CN201310224947A CN104243109A CN 104243109 A CN104243109 A CN 104243109A CN 201310224947 A CN201310224947 A CN 201310224947A CN 104243109 A CN104243109 A CN 104243109A
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Abstract
The application discloses an uplink data mixed automatic retransmission request information indication method comprising the following steps: a base station send an uplink data HARQ message in added downlink control information DCI format to each UE on an ePDCCH; any UE receives the uplink data HARQ message, sent by the base station, in added DCI format; to obtain the corresponding HARQ indication information from the uplink data HARQ message according to a HARQ-index assigned for the UE by the base station, and to determine whether to re-send the previous uplink data or not according to the obtained HARQ indication information. The method can realize HARQ information indication of the uplink data with small cost, and can less modify the protocol standards.
Description
Technical field
The application relates to communication technical field, the method for particularly a kind of hybrid automatic repeat-request to upstream data (HARQ) information instruction.
Background technology
Backward compatibility carrier wave (LCT) by physical mixing retransmission indicating chanel (PHICH) for upstream data provides detailed descending acknowledgement/non-acknowledgement (ACK/NACK) signaling.Introduce in non-backward compatible carrier waves (NCT) and strengthen Physical Downlink Control Channel (ePDCCH), send at Data Position, object strengthens control channel capacity and better utilizes frequency domain to carry out coordinating district interference (Inter-Cell Interference Coordination, ICIC), same, the PHICH introducing enhancing in new carrier wave also realizes same function.
Under carrier aggregation scene in LTE Rel-10, PHICH sends on the community of dispatching uplink data channel, even and if in Rel-11 strengthen control channel scheduling PUSCH, also be the HARQ information indicating upstream data with PHICH, also just mean that up imparting (UL grant) and PHICH send out on identical community, no matter this UL grant sends at PDCCH or on ePDCCH.Owing to lacking cell-specific pilot tone (CRS), new carrier wave is not suitable for send PHICH, when the PUSCH on NCT be on LCT across carrier dispatching time, send in identical community because criterion is the PHICH that UL grant with PUSCH is corresponding, the PHICH that the upper PUSCH of NCT is corresponding can send on LCT, but when PUSCH on NCT be dispatch from NCT itself time, need problem solution NCT being not suitable for transmission PHICH.
If continue to use the scheme of PHICH to carry out the HARQ feedback of upstream data, also have problems, because the PHICH in LTE Rel-11 sends on the carrier wave that UL grant is corresponding, for the upstream data that new carrier wave is independently dispatched, PHICH needs to send on NCT, and carried out expense reduction due to the CRS on new carrier wave, so it is in-problem that new carrier wave sends PHICH.
There is the ascending HARQ ACK/NACK signaling that multiple method can provide corresponding with strengthening down control channel.
First method, can be used as the HARQ information feed back of the PUSCH on NCT by the PHICH on LCT, though PUSCH be on identical NCT ePDCCH scheduling.The problem of this method is, the standard of one side and Rel-11 is incompatible, is in TDD system on the other hand, likely LCT does not have corresponding descending sub frame to be used for sending PHICH.
Second method, the ACK/NACK signaling of implicit expression can be adopted to be used as ascending HARQ ACK/NACK signaling, and the return link of wireless relay (relay) is adopted in this way exactly.If ePDCCH Schedule retransmission, when new data instruction (NDI) is 1 time, dispatch new data, and when NDI is 0 time, schedule re-transmission data, if UE does not detect the up imparting (UL grant) of ePDCCH, UE is interpreted as ACK.The method provides a very simple mode to send ACK/NACKs, and because UL grant sends on ePDCCH, ascending HARQ signaling can obtain the benefit of all ePDCCH.Problems existing is that expense is comparatively large, because each NACK needs to send complete UL grant.
In sum, also do not propose in existing realization a kind of to change little to standard in NCT, and the method for the little upstream data HARQ information instruction of expense.
Summary of the invention
In view of this, a kind of method that the application provides hybrid automatic retransmission request information to upstream data to indicate, when realizing the HARQ information instruction to upstream data, expense is little, and changes little to consensus standard.
For solving the problems of the technologies described above, technical scheme of the present invention is achieved in that
A kind of method that hybrid automatic repeat-request HARQ information to upstream data indicates, be applied to comprise user equipment (UE) and base station based in the network of non-backward compatible carrier waves NCT, base station in this network is that each UE distributes different HARQ-index index, comprising:
This base station strengthening, Physical Downlink Control Channel ePDCCH sends the upstream data HARQ message of newly-increased Downlink Control Information DCI format to each UE, this upstream data HARQ message is the HARQ command information position that HARQ-index that each UE distributes is corresponding being carried each UE in this base station;
When arbitrary UE receives the upstream data HARQ message of the newly-increased DCI format that this base station sends, according to the HARQ-index that this base station is this UE distribution, in this upstream data HARQ message, obtain corresponding HARQ command information, and determine whether again to send the last upstream data sent according to the HARQ command information obtained.
Wherein, described method comprises further: this base station is that each UE in this network distributes same HARQ-Radio Network Temporary Identifier RNTI;
The upstream data HARQ message of the newly-increased DCI format that this base station described sends to each UE on ePDCCH, also carries crc value, and this crc value is when by presetting CRC algorithm computing, is that the described HARQ-RNTI that each UE distributes carries out scrambling acquisition by this base station;
When described arbitrary UE receives the message of the newly-increased DCI format that this base station sends, when by presetting CRC algorithm computing, crc value is obtained by the HARQ-RNTI scrambling of described base station assigns, the crc value carried in the message of the newly-increased DCI format received when the crc value obtained is same is identical, determines that the message of the newly-increased DCI format received is upstream data HARQ message.
The length of the upstream data HARQ message of the newly-increased DCI format that described base station sends is that the length of the message of DCI format 0/1A or DCI format 3/3A is identical with the DCI format not comprising CRC.
In sum, the application sends the upstream data HARQ message of newly-increased Downlink Control Information DCI format on ePDCCH to each UE by base station, when arbitrary UE receives the upstream data HARQ message of the newly-increased DCI format that this base station sends, according to the HARQ-index that this base station is this UE distribution, in this upstream data HARQ message, obtain corresponding HARQ command information, and determine whether again to send the last upstream data sent according to the HARQ command information obtained.When realizing the HARQ information instruction to upstream data, expense is little, and changes little to consensus standard.
Accompanying drawing explanation
Fig. 1 is the schematic flow sheet to the method that the HARQ information of upstream data indicates in the specific embodiment of the invention.
Embodiment
For making object of the present invention, technical scheme and advantage clearly understand, to develop simultaneously embodiment referring to accompanying drawing, scheme of the present invention is described in further detail.
A kind of method that HARQ information to upstream data indicates is proposed in the embodiment of the present invention, be applied to comprise subscriber equipment (UE) and base station based in the network of NCT, this base station sends the upstream data HARQ message of newly-increased Downlink Control Information DCI format on ePDCCH to each UE, when arbitrary UE receives the upstream data HARQ message of the newly-increased DCI format that this base station sends, according to the HARQ-index that this base station is this UE distribution, corresponding HARQ command information is obtained in this upstream data HARQ message, and determine whether again to send the last upstream data sent according to the HARQ command information obtained.When realizing the HARQ information instruction to upstream data, expense is little, and changes little to consensus standard.
Below in conjunction with accompanying drawing, describe in detail in the specific embodiment of the invention and how to realize indicating the HARQ information of upstream data.
See the schematic flow sheet that Fig. 1, Fig. 1 are to the method that the HARQ information of upstream data indicates in the specific embodiment of the invention.Concrete steps are:
Step 101, base station in this network sends the upstream data HARQ message of newly-increased Downlink Control Information DCI format on ePDCCH to each UE, this upstream data HARQ message is the HARQ command information position that HARQ-index that each UE distributes is corresponding being carried each UE in this base station.
This base station is that in network, each UE distributes different HARQ-index, is used to refer to the corresponding relation of UE and HARQ command information.The HARQ instruction message of each UE, when sending the upstream data HARQ message of newly-increased DCI format, is filled on position corresponding to the HARQ-index that distributes for this UE by base station.
The HARQ-index distributed for each UE is sent to each UE by RRC signaling by base station, and TPC-index sends to the process of UE identical with base station in agreement by specific implementation, here no longer illustrated in greater detail.
EPDCCH is for carrying uplink and downlink schedule information, and up and down power control information.The form (format) of Downlink Control Information (DCI) is divided into following several: DCI format0, DCI format1, DCI format1A, DCI format1B, DCI format1C, DCI format1D, DCI format2, DCI format2A, DCI format3 and DCI format3A etc.Wherein, DCI format0 is used to indicate the scheduling of PUSCH; DCI format1, DCI format1A, DCI format1B, DCI format1C and DCI format1D are used for the different transmission mode of the PDSCH of single transport block; DCI format2 and DCI format2A is used for the different transmission mode of space division multiplexing; DCI format3, DCI format3A are used for the transmission of the power control instruction of PUCCH and PUSCH.
Newly-increased DCI format in the present embodiment is that base station and UE all can identify, and with the different DCI format of already present DCI format, as DCI format 5.
Step 102, when arbitrary UE receives the upstream data HARQ message of the newly-increased DCI format that this base station sends, according to the HARQ-index that this base station is this UE distribution, in this upstream data HARQ message, obtain corresponding HARQ command information, and determine whether again to send the last upstream data sent according to the HARQ command information obtained.
When arbitrary UE receives the upstream data HARQ message of the newly-increased DCI format that base station sends, be that the HARQ-index correspondence position within the message that this UE distributes obtains the HARQ command information that base station is this UE transmission by base station.This command information generally includes the information of 1 bit, is ACK instruction or NACK instruction for mark.If mark is ACK instruction, this UE does not need again to send the last upstream data sent; If NACK instruction, this UE needs again to send the last upstream data sent.
Same HARQ-RNTI can also be distributed for each UE in this network in this base station, for when calculating cyclic redundancy check code (Cyclic Redundancy Check, CRC) value, carries out scrambling by the HARQ-RNTI distributed.
The upstream data HARQ message of the newly-increased DCI format that this base station sends to each UE on ePDCCH, also carries crc value, and this crc value is when by presetting CRC algorithm computing, is that the described HARQ-RNTI that each UE distributes carries out scrambling acquisition by this base station.
The general principle of CRC is: the check code splicing R position after the information code of K position again, and whole code length is N position, and therefore, this coding is also (N, K) code.For given (N, a K) code, can prove that the most high math power of existence one is multinomial G (x) of N-K=R.Can generate the check code of K position information according to G (x), and G (x) is called the generator polynomial of this CRC code.The concrete generative process of check code is: suppose that transmission information message polynomial C (X) represents, move to left C (x) R position, then can be expressed as the R power of C (x) * x, R position will be vacated in the right of such C (x), the position of Here it is check code.Be exactly check code by the R power of C (x) * 2 divided by the remainder that generator polynomial G (x) obtains.
The identical HARQ-RNTI distributed for UE is sent to each UE by frame structure by base station, and specific implementation process, with the process sending TPC-PUCCH-RNTI, is not described in detail here.
When arbitrary UE receives the message of the newly-increased DCI format that this base station sends, when by presetting CRC algorithm computing, crc value is obtained by the HARQ-RNTI scrambling of described base station assigns, the crc value carried in the message of the newly-increased DCI format received when the crc value obtained is same is identical, determines that the message of the newly-increased DCI format received is upstream data HARQ message.When realizing like this, can determine that the message of this CRC form is upstream data HARQ message as early as possible.
The length of upstream data HARQ message of the newly-increased DCI format that base station sends, is that the length of the message of DCI format 0/1A or DCI format 3/3A is identical with the DCI format not comprising CRC, can reduces blind Detecting number of times.
In sum, in the specific embodiment of the invention, base station sends the upstream data HARQ message of newly-increased Downlink Control Information DCI format on ePDCCH to each UE, when arbitrary UE receives the upstream data HARQ message of the newly-increased DCI format that this base station sends, according to the HARQ-index that this base station is this UE distribution, in this upstream data HARQ message, obtain corresponding HARQ command information, and determine whether again to send the last upstream data sent according to the HARQ command information obtained.By introducing new DCI format in enhancing control channel, the position of existing ePDCCH can be utilized neatly to send the HARQ information of the upstream data of each UE.When realizing the HARQ information instruction to upstream data, expense is little, and changes little to consensus standard.
The above, be only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (3)
1. the method that indicates of the hybrid automatic repeat-request HARQ information to upstream data, be applied to comprise user equipment (UE) and base station based in the network of non-backward compatible carrier waves NCT, it is characterized in that, the base station in this network is that each UE distributes different HARQ-index index, comprising:
This base station strengthening, Physical Downlink Control Channel ePDCCH sends the upstream data HARQ message of newly-increased Downlink Control Information DCI format to each UE, this upstream data HARQ message is the HARQ command information position that HARQ-index that each UE distributes is corresponding being carried each UE in this base station;
When arbitrary UE receives the upstream data HARQ message of the newly-increased DCI format that this base station sends, according to the HARQ-index that this base station is this UE distribution, in this upstream data HARQ message, obtain corresponding HARQ command information, and determine whether again to send the last upstream data sent according to the HARQ command information obtained.
2. method according to claim 1, is characterized in that, described method comprises further: this base station is that each UE in this network distributes same HARQ-Radio Network Temporary Identifier RNTI;
The upstream data HARQ message of the newly-increased DCI format that this base station described sends to each UE on ePDCCH, also carries crc value, and this crc value is when by presetting CRC algorithm computing, is that the described HARQ-RNTI that each UE distributes carries out scrambling acquisition by this base station;
When described arbitrary UE receives the message of the newly-increased DCI format that this base station sends, when by presetting CRC algorithm computing, crc value is obtained by the HARQ-RNTI scrambling of described base station assigns, the crc value carried in the message of the newly-increased DCI format received when the crc value obtained is same is identical, determines that the message of the newly-increased DCI format received is upstream data HARQ message.
3. method according to claim 1 and 2, is characterized in that,
The length of the upstream data HARQ message of the newly-increased DCI format that described base station sends is that the length of the message of DCI format 0/1A or DCI format 3/3A is identical with the DCI format not comprising CRC.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106302276A (en) * | 2015-05-29 | 2017-01-04 | 展讯通信（上海）有限公司 | Mobile terminal and receive signal processing system and method |
| WO2018098778A1 (en) * | 2016-12-01 | 2018-06-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Downlink harq feedback transmission |
| CN108352931A (en) * | 2015-10-30 | 2018-07-31 | 高通股份有限公司 | Cyclic redundancy check length management |
| WO2019127183A1 (en) * | 2017-12-28 | 2019-07-04 | 北京小米移动软件有限公司 | Method and device for transmitting hybrid automatic repeat request information |
| CN110583070A (en) * | 2017-05-04 | 2019-12-17 | 株式会社Ntt都科摩 | HARQ-ACK feedback method, HARQ-ACK extraction method, base station and user equipment |
| WO2020192778A1 (en) * | 2019-03-28 | 2020-10-01 | 华为技术有限公司 | Hybrid automatic repeat request (harq) feedback control method and related device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090268685A1 (en) * | 2008-04-29 | 2009-10-29 | Qualcomm Incorporated | Assignment of ack resource in a wireless communication system |
| CN102687452A (en) * | 2009-09-28 | 2012-09-19 | 高通股份有限公司 | Control information signaling |
| CN102792600A (en) * | 2010-01-11 | 2012-11-21 | 捷讯研究有限公司 | System and method for control channel interference management and extended PDCCH |
| CN104125045A (en) * | 2013-04-25 | 2014-10-29 | 上海贝尔股份有限公司 | Method for transmitting ACK/NACK messages |
-
2013
- 2013-06-07 CN CN201310224947.6A patent/CN104243109B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090268685A1 (en) * | 2008-04-29 | 2009-10-29 | Qualcomm Incorporated | Assignment of ack resource in a wireless communication system |
| CN102687452A (en) * | 2009-09-28 | 2012-09-19 | 高通股份有限公司 | Control information signaling |
| CN102792600A (en) * | 2010-01-11 | 2012-11-21 | 捷讯研究有限公司 | System and method for control channel interference management and extended PDCCH |
| CN104125045A (en) * | 2013-04-25 | 2014-10-29 | 上海贝尔股份有限公司 | Method for transmitting ACK/NACK messages |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106302276A (en) * | 2015-05-29 | 2017-01-04 | 展讯通信（上海）有限公司 | Mobile terminal and receive signal processing system and method |
| CN106302276B (en) * | 2015-05-29 | 2019-12-06 | 展讯通信（上海）有限公司 | Mobile terminal and received signal processing system and method thereof |
| CN108352931B (en) * | 2015-10-30 | 2021-03-16 | 高通股份有限公司 | Method and apparatus for cyclic redundancy check length management |
| CN108352931A (en) * | 2015-10-30 | 2018-07-31 | 高通股份有限公司 | Cyclic redundancy check length management |
| US11457379B2 (en) | 2015-10-30 | 2022-09-27 | Qualcomm Incorporated | Cyclic redundancy check length management |
| WO2018098778A1 (en) * | 2016-12-01 | 2018-06-07 | Telefonaktiebolaget Lm Ericsson (Publ) | Downlink harq feedback transmission |
| CN110235397A (en) * | 2016-12-01 | 2019-09-13 | 瑞典爱立信有限公司 | Downlink HARQ feedback transmission |
| US10693596B2 (en) | 2016-12-01 | 2020-06-23 | Telefonaktiebolaget Lm Ericsson (Publ) | Downlink HARQ feedback transmission |
| CN110583070A (en) * | 2017-05-04 | 2019-12-17 | 株式会社Ntt都科摩 | HARQ-ACK feedback method, HARQ-ACK extraction method, base station and user equipment |
| WO2019127183A1 (en) * | 2017-12-28 | 2019-07-04 | 北京小米移动软件有限公司 | Method and device for transmitting hybrid automatic repeat request information |
| US11323210B2 (en) | 2017-12-28 | 2022-05-03 | Beijing Xiaomi Mobile Software Co., Ltd. | Method and device for transmitting hybrid automatic repeat request information |
| CN110192369B (en) * | 2017-12-28 | 2022-06-03 | 北京小米移动软件有限公司 | Method and device for transmitting hybrid automatic repeat request information |
| CN110192369A (en) * | 2017-12-28 | 2019-08-30 | 北京小米移动软件有限公司 | Transmit the method and device of hybrid automatic retransmission request information |
| WO2020192778A1 (en) * | 2019-03-28 | 2020-10-01 | 华为技术有限公司 | Hybrid automatic repeat request (harq) feedback control method and related device |
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