Title:
DEMODULATION REFERENCE SIGNAL PORT ALLOCATION INDICATION METHOD AND APPARATUS, BASE STATION, AND TERMINAL
Document Type and Number:
WIPO Patent Application WO/2021/063042
Kind Code:
A1
Abstract:
Disclosed in embodiments of the present application are a demodulation reference signal (DMRS) port allocation indication method and apparatus, a base station, and a terminal. The method comprises: sending indication signaling to the terminal UE so that the UE determines an allocation status of a DMRS port according to indication information, the indication signaling carrying indication information on a DMRS allocation table configured by a higher layer, or, the indication signaling carrying indication information on a transmission mode, indication information on a DMRS type, and indication information on the maximum number of front loaded DMRS symbols configured by a higher layer. In the embodiments of the present application, by carrying indication information in signaling, a DMRS allocation table is directly indicated or an agreed DMRS allocation table is indicated by means of a parameter, so that overhead for DMRS port indication can be effectively reduced.
Inventors:
SU XIN (CN)
GAO XUEYUAN (CN)
GAO QIUBIN (CN)
GAO XUEYUAN (CN)
GAO QIUBIN (CN)
Application Number:
PCT/CN2020/097910
Publication Date:
April 08, 2021
Filing Date:
June 24, 2020
Export Citation:
Assignee:
DATANG MOBILE COMMUNICATIONS EQUIPMENT CO LTD (CN)
International Classes:
H04W72/04
Foreign References:
| EP3651397A1 | 2020-05-13 | |||
| CN108809609A | 2018-11-13 | |||
| US20180270799A1 | 2018-09-20 | |||
| CN109802807A | 2019-05-24 | |||
| CN109391458A | 2019-02-26 | |||
| US20190296876A1 | 2019-09-26 |
Other References:
HUAWEI, HISILICON: "Discussion on DM-RS Overhead Reduction", 3GPP DRAFT; R1-1717109, vol. RAN WG1, 29 September 2017 (2017-09-29), Prague, Czech Republic, pages 1 - 3, XP051351516
HUAWEI, HISILICON: "Single PDCCH Based Multi-TRP/Panel Transmission", 3GPP DRAFT; R1-1903981, vol. RAN WG1, 29 March 2020 (2020-03-29), Xi’an, China, pages 1 - 4, XP051691203
PANASONIC: "On multi-TRP enhancements for NR MIMO in Rel.16", 3GPP DRAFT; R1-1904190_PANASONIC_NR_MIMO_MULTI_TRP_ENHANCEMENTS_VFINAL, vol. RAN WG1, 29 March 2020 (2020-03-29), Xi’an, China, pages 1 - 13, XP051691331
HUAWEI, HISILICON: "Single PDCCH Based Multi-TRP/Panel Transmission", 3GPP DRAFT; R1-1903981, vol. RAN WG1, 29 March 2020 (2020-03-29), Xi’an, China, pages 1 - 4, XP051691203
PANASONIC: "On multi-TRP enhancements for NR MIMO in Rel.16", 3GPP DRAFT; R1-1904190_PANASONIC_NR_MIMO_MULTI_TRP_ENHANCEMENTS_VFINAL, vol. RAN WG1, 29 March 2020 (2020-03-29), Xi’an, China, pages 1 - 13, XP051691331
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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