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Title:
APPARATUS AND METHOD OF HARQ-ACK FEEDBACK
Document Type and Number:
WIPO Patent Application WO/2021/016997
Kind Code:
A1
Abstract:
Apparatus and methods of Hybrid Automatic Repeat Request (HARQ) Acknowledgement (ACK) feedback for multiple Physical Downlink Control Channel (PDCCH) based multiple Transmit Receive Points (TRP) transmission are disclosed. The apparatus includes: a receiver that receives a plurality of configurations of control resource sets (CORESETs), wherein each CORESET comprises a plurality of resource blocks (RBs) in frequency domain and a plurality of symbols in time domain, and time-frequency resources identified by the CORESET are used to transmit a Downlink Control Information (DCI); a processor that determines a Hybrid Automatic Repeat Request (HARQ) Acknowledgement (ACK) feedback selected from a group consisting of: a separate HARQ-ACK feedback and a joint HARQ-ACK feedback; and a transmitter that transmits the determined HARQ-ACK feedback; wherein the separate HARQ-ACK feedback is transmitted through a plurality of uplink resources; and the joint HARQ-ACK feedback is transmitted through one uplink resource.

Inventors:
LIU BINGCHAO (CN)
ZHU CHENXI (CN)
LEI HAIPENG (CN)
LING WEI (CN)
Application Number:
PCT/CN2019/098912
Publication Date:
February 04, 2021
Filing Date:
August 01, 2019
Export Citation:
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Assignee:
LENOVO BEIJING LTD (CN)
International Classes:
H04L1/18; H04L5/00
Domestic Patent References:
WO2019139405A12019-07-18
Other References:
QUALCOMM INCORPORATED: "Multi-TRP Enhancements", 3GPP DRAFT; R1-1907289 MULTI-TRP ENHANCEMENTS, vol. RAN WG1, 4 May 2019 (2019-05-04), Reno, Nevada, USA, pages 1 - 25, XP051709312
PANASONIC: "On multi-TRP enhancements for NR MIMO in Rel.16", 3GPP DRAFT; R1-1907031_PANASONIC_NR_MIMO_MULTI_TRP_ENHANCEMENTS_VFINAL, vol. RAN WG1, 3 May 2019 (2019-05-03), Reno, USA, pages 1 - 16, XP051709064
NTT DOCOMO; INC: "Enhancements on multi-TRP/panel transmission", 3GPP DRAFT; R1-1906224, vol. RAN WG1, 3 May 2019 (2019-05-03), Reno, USA, pages 1 - 32, XP051708263
CATT: "On multi-TRP/panel transmission", 3GPP DRAFT; R1-1906345, vol. RAN WG1, 4 May 2019 (2019-05-04), Reno, USA, pages 1 - 17, XP051708380
See also references of EP 4008074A4
Attorney, Agent or Firm:
CHINA SINDA INTELLECTUAL PROPERTY LIMITED (CN)
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