Method and device for wireless communication

Abstract

The embodiment of the present invention discloses a method and device for wireless communication. The method includes: when the first cell in the target frequency band is configured with the first target control resource set CORESET, determine the configured first target control resource set of the first cell. The first target standard co-location QCL information of a target CORESET; according to the first target QCL information, determine the QCL information of the downlink channel or downlink reference signal on at least one cell, and the uplink channel or uplink channel on the at least one cell Spatial relationship information of the reference signal. In the method of the embodiment of the present invention, the QCL information of the downlink channel or downlink reference signal and the spatial relationship information of the uplink channel or uplink reference signal on at least one cell can be determined by the terminal device according to the quasi-co-located QCL information of a specific CORESET in the target frequency band , without the need for network devices to be configured through high-level information, which can reduce high-level signaling overhead.

Description

technical field [0001] The present application relates to the technical field of communication, and more specifically relates to a method and device for wireless communication. Background technique [0002] In the current mobile communication system, for the beam indication of the physical downlink control channel (Physical Downlink ControlChannel, PDCCH), the network device uses radio resource control (Radio Resource Control, RRC) signaling for each control resource set (Control Resource Set, CORESET ) to configure K transmission configuration indication (Transmission Configuration Indication, TCI) states (state), when K>1, a TCI state is indicated by a Media Access Control Control Element (MAC CE), when K=1 , no additional MAC CE commands are required. When the terminal device monitors the CORESET, it uses the same quasi-colocation (QCL) information, that is, the same TCI state, for all search spaces (Search Space) inside the CORESET. The terminal device can learn the...

AI Technical Summary

Problems solved by technology

[0007] It can be seen from the above description that the current beam indication for uplink and downlink channels or reference signals is usually configured with candidate QCL information or Spatial Relation information through RRC signaling, and then activated through MAC CE commands or indicated through DCI. When candidate QCL information occurs Or when reconfiguring Spatial Relation information, it is necessary to use RRC signaling again for configuration, which brings a large high-level signaling overhead

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