Title:
BEAM FAILURE RECOVERY METHOD AND APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/134984
Kind Code:
A1
Abstract:
The present application relates to the technical field of communications. Disclosed are a beam failure recovery method and apparatus. The method comprises: a terminal device receives first information sent by a network device, the first information being used for indicating a resource corresponding to each beam in a first beam set; the terminal device selects a second beam from a second beam set after the occurrence of a beam failure is determined; and if the second beam is a beam other than the first beam set, the terminal device sends a beam recovery request to the network device by using resources corresponding to the second beam, the resources corresponding to the second beam comprising resources corresponding to multiple beams in the first beam set. By adopting the method, the terminal device can send the beam recovery request to the network device by using the resources corresponding to multiple beams in the first beam set, that is, the recovery of a beam is indicated in an implicit indication manner, so as to greatly improve the probability of successful beam recovery.
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Inventors:
LIU XIANGPU (CN)
LIU KUNPENG (CN)
XIANG GAO (CN)
TIAN TINGJIAN (CN)
LIU KUNPENG (CN)
XIANG GAO (CN)
TIAN TINGJIAN (CN)
Application Number:
PCT/CN2019/123757
Publication Date:
July 02, 2020
Filing Date:
December 06, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W72/04
Domestic Patent References:
| WO2018224013A1 | 2018-12-13 |
Foreign References:
| CN108702182A | 2018-10-23 | |||
| CN107342801A | 2017-11-10 | |||
| CN108924929A | 2018-11-30 |
Other References:
ASUSTEK: "Considerations on UE Beamforming Management", R1-1709046, 3GPP TSG RAN WG1 MEETING #89, 19 May 2017 (2017-05-19), pages 1 - 3, XP051261485, DOI: 20200226115418A
NOKIA ET AL.: "Beam Recovery in NR", R1-1612865, 3GPP TSG-RAN WG1 #87, 18 November 2016 (2016-11-18), pages 1 - 4, XP051189516, DOI: 20200226115554A
NOKIA ET AL.: "Beam Recovery in NR", R1-1612865, 3GPP TSG-RAN WG1 #87, 18 November 2016 (2016-11-18), pages 1 - 4, XP051189516, DOI: 20200226115554A
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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