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Title:
SIGNAL TRANSMISSION METHOD, RELEVANT DEVICE AND SYSTEM
Document Type and Number:
WIPO Patent Application WO/2019/137509
Kind Code:
A1
Abstract:
An information transmission method, relevant device and system. The method comprises: a terminal device sending link reconfiguration request information to a network device at a moment n; the terminal device detecting a PDSCH according to first QCL information within a first period of time after the moment n, wherein the first QCL information indicates that a first reference signal and a second reference signal satisfy a QCL relation; and the terminal device detecting a PDSCH according to the QCL information indicated by a first TCI state within a second period of time after the moment n, wherein the first TCI state is from reconfiguration information sent by the network device. A start moment of the second period of time is a moment when the terminal device receives the reconfiguration information or after the moment. By means of the solution, a terminal device can reliably detect a PDSCH after a link failure and before a network device again clearly indicates QCL information for detecting the PDSCH.

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Inventors:
ZHANG DI (CN)
LIU KUNPENG (CN)
Application Number:
PCT/CN2019/071493
Publication Date:
July 18, 2019
Filing Date:
January 11, 2019
Export Citation:
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Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04W72/08; H04L1/00
Domestic Patent References:
WO2018004509A12018-01-04
Foreign References:
CN107079459A2017-08-18
Other References:
HUAWEI ET AL: "Remaining details on beam failure recovery", 3GPP TSG RAN WG1 MEETING 91 R1-1719423, 18 November 2017 (2017-11-18), XP051369330
SPREADTRUM COMMUNICATIONS: "Remaining issues on beam failure recovery mechanism", 3GPP TSG RAN WG1 MEETING 91 R1-1719695, 17 November 2017 (2017-11-17), XP051368853
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
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