Title:
MULTIPOINT TRANSMITTING METHOD AND DEVICE FOR HYBRID AUTOMATIC REPEAT REQUEST
Document Type and Number:
WIPO Patent Application WO/2021/012662
Kind Code:
A1
Abstract:
Disclosed in the present application is a multipoint transmitting method for a hybrid automatic repeat request. Downlink control signaling comprises first indication information, second indication information, and DAI values; the first indication information is used for indicating whether the signaling is used for multi TRP scheduling; the second indication information is used for indicating identifiers of TRPs; the DAI values comprise a DAI count value and a DAI total value and are used for determining a sequence of HARQ-ACK information; the DAI count value in the downlink control signaling sent by multi TRP downlink data is increased according to the number of scheduled TRPs; the DAI total value is the total value of the scheduled PDSCHs until a current downlink control signaling detection timing. The present application further provides a terminal device using the method, a network device, and a mobile communication system. The present application solves the problem of how to implement hybrid automatic repeat requests under multiple TRPs.
Inventors:
JIAO HUIYING (CN)
Application Number:
PCT/CN2020/073697
Publication Date:
January 28, 2021
Filing Date:
January 22, 2020
Export Citation:
Assignee:
CHINA ACAD OF INFORMATION AND COMMUNICATIONS (CN)
International Classes:
H04L1/18
Domestic Patent References:
| WO2019099670A1 | 2019-05-23 |
Foreign References:
| CN109639398A | 2019-04-16 | |||
| CN109478978A | 2019-03-15 | |||
| US20190103943A1 | 2019-04-04 |
Other References:
QUALCOMM INCORPORATED: "Multi-TRP Enhancements", 3GPP TSG-RAN WG1 MEETING #97 R1-1907289 MULTI-TRP ENHANCEMENTS, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 13 May 2019 (2019-05-13), Reno, Nevada, USA; 20190513 - 20190517, XP051728729
HUAWEI, HISILICON: "Summary of AI: 7.2.8.2 Enhancements on Multi-TRP/Panel Transmission of Offline Discussion", 3GPP TSG-RAN WG1 MEETING #97 R1-1907706, FL SUMMARY OF ENHANCEMENTS ONNCJT_V1, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 16 May 2019 (2019-05-16), Reno, USA; 20190513 - 20190517, XP051739989
HUAWEI, HISILICON: "Summary of AI: 7.2.8.2 Enhancements on Multi-TRP/Panel Transmission of Offline Discussion", 3GPP TSG-RAN WG1 MEETING #97 R1-1907706, FL SUMMARY OF ENHANCEMENTS ONNCJT_V1, 3RD GENERATION PARTNERSHIP PROJECT (3GPP), SOPHIA-ANTIPOLIS CEDEX ; FRANCE, 16 May 2019 (2019-05-16), Reno, USA; 20190513 - 20190517, XP051739989
Attorney, Agent or Firm:
CO-HORIZON INTELLECTUAL PROPERTY INC. (CN)
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