US 2023/0156753 A1 · Concurrent Channel State Information (CSI) Capability Reporting using Multiple Codebooks

Abstract

A user equipment (UE) transmits concurrent channel state information (CSI) processing capability information to a base station. The capability information can take various forms, and is intended to constrain the base station in the types of CSI requests that can be made to the UE. For example, the UE may indicate different CSI processing capabilities for intra-CC and inter-CC cases and/or for different codebook types. The UE may also specify supported combinations of codebook types for concurrent CSI reporting. The UE may also specify maximum resources or weighting factors for different codebook types. The UE may further restrict the rank information it provides and use a priority rule for “dropping” CSI report data due to payload size restrictions. The base station may direct, or the UE may implement, improved utilization of CSI resources that are shared for multiple concurrent CSI reports. Minimum time requirements for CSI reporting may also be relaxed.

Claims21

Dependent claims

-20. (canceled)

A non-transitory computer readable memory medium, comprising:

program instructions configured to cause a base station of a cellular network to:
establish a first radio resource control (RRC) connection with a user equipment (UE);
and
receiving, for the UE, capability information related to combinations of codebook types, wherein the capability information includes capability for respective supported combinations of codebook types, and wherein the capability information for the respective supported combinations of codebook types includes a maximum number of ports per channel state information (CSI) resource, a maximum number of CSI resources, and a maximum number of total ports.

1 more element

An apparatus, comprising:

a processor configured to cause a base station of a cellular network to:
establish a first radio resource control (RRC) connection with a user equipment (UE);
and
receive, from the UE, channel state information (CSI) capability information, wherein the CSI capability information comprises information on concurrent CSI processing capability of the UE, wherein the CSI capability information includes capability for each supported combination of codebook types, and wherein the capability information for each supported combination of codebook types includes a maximum number of ports per CSI resource, a maximum number of CSI resources, and a maximum number of total ports.

1 more element

Dependencies are inferred from the claim text.

Facts

Application

18/084,049Filed 19 Dec 2022

Priority

12 Jan 2021

Published

18 May 2023

Term ends

Not estimatedThe source records don’t support an estimate.

Classification19 codes

H04W 8/24
Processing or transfer of terminal data, e.g. status or physical capabilities: transfer of terminal data
H04W 72/51
Allocation or scheduling criteria for wireless resources: based on terminal or device properties
H04B 7/0478
Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting: special codebook structures directed to feedback optimisation
H04B 7/0482
Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting: adaptive codebooks

Concurrent Channel State Information (CSI) Capability Reporting using Multiple Codebooks

Life of this patent

Concurrent Channel State Information (CSI) Capability Reporting using Multiple Codebooks

Life of this patent

Abstract

Claims21