Beam failure recovery method and device, storage medium and user equipment

Abstract

A beam failure recovery method and device, a storage medium, and a user equipment are provided. The beam failure recovery method comprises: receiving a reference signal set configured by a base station for monitoring beam failure, the reference signal set for monitoring beam failure comprising at least one reference signal; measuring the signal quality of each reference signal, and calculating according to the signal quality of each reference signal to obtain an estimated block error rate (hypothetical block error rate) of each reference signal; and triggering a beam failure recovery process if the reference signal set is in the Multi-TRP / Multi-Panel mode and at least one reference signal in the reference signal set used for monitoring the beam failure has the beam failure. According to the technical scheme of the invention, beam failure recovery can be realized in a Multi-TRP / Multi-Panel scene, and the communication efficiency between the user equipment and the base station is ensured.

Description

technical field [0001] The present invention relates to the field of communication technologies, and in particular to a beam failure recovery method and device, a storage medium, and user equipment. Background technique [0002] In the previous radio access network (Radio Access Network, RAN1) protocol (agreement), it is clearly stated that it is necessary to support physical uplink control channel (Physical Uplink Control Channel, PUCCH) and random access channel (Random Access Channel, RACH) Beam Failure Recovery (Beam Failure Recovery, BFR). The RACH-like BFR is standardized in Standard 15 (Release, R15). R15's RACH-likeBFR supports both contention-based CFR (Contention-Based BFR, CB-BFR) and contention-free CFR (Contention-Free BFR, CF-BFR). For CB-BFR, the current mainstream understanding of RAN2 is that the RACH process in the initial connection (initial access) can be reused without a separate design. [0003] In the prior art, R15 supports UE with a single serving...

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Problems solved by technology

[0004] However, currently R15 supports a maximum of 2 reference signals in a set q0. Assuming that the set q0 configured by the UE contains 2 RSs, it can theoretically support a minimum of multi-transmitting points / multi-antenna arrays (Multi-TRP / Multi-Panel) Scenario, that is, one RS corresponds to one TRP / panel

However, if the predicted block error rate of an RS in the set q0 is higher than the threshold Q1, in this case, the base station does not know the beam situation at this time, if the base station performs continuous Multi-TRP / Multi-Panel mode scheduling , resulting in decoding failures on a certain control resource set (Control Resource SET, CORESET)

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