US-12627344-B2 - Channel state information report configuration

US12627344B2US 12627344 B2US12627344 B2US 12627344B2US-12627344-B2

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit a channel state information (CSI) report configuration associated with multiple reference signal resource sets, all reference signal resources in each reference signal resource set associated with a different base station beam, for one or more of channel measurements or interference measurements. The base station may receive a report, based at least in part on the CSI report configuration, that indicates one or more base station beams recommended for subsequent communications with a user equipment (UE). Numerous other aspects are provided.

Inventors

Yan Zhou
Qian Zhang
Tao Luo

Assignees

QUALCOMM INCORPORATED

Dates

Publication Date: 20260512
Application Date: 20211015

Claims (20)

1 . A user equipment (UE) for wireless communication, comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to: receive a channel state information (CSI) configuration associated with a joint procedure of base station beam refinement and UE beam refinement, wherein the CSI configuration is associated with multiple reference signal resource sets that are each associated with a different base station beam of multiple base station beams, and wherein each reference signal resource set, of the multiple reference signal resource sets, includes multiple reference signal repetitions for a particular base station beam of the multiple base station beams, wherein the CSI configuration includes a first indication, within a repetition field associated with all reference signal resources in a first reference signal resource set, that all reference signal resources in the first reference signal resource set are associated with a first base station beam, and wherein the CSI configuration includes a second indication, within a repetition field associated with all reference signal resources in a second reference signal resource set, that all reference signal resources in the second reference signal resource set are associated with a second base station beam; receive, for each reference signal resource set of the multiple reference signal resource sets, the multiple reference signal repetitions for the particular base station beam using different UE beams; and determine preferred UE beams for pairing with each base station beam, of the multiple base station beams, based at least in part on receiving the multiple reference signal repetitions for each reference signal resource set of the multiple reference signal resource sets.
2 . The UE of claim 1 , wherein the one or more processors are further configured to: perform the joint procedure of the base station beam refinement and the UE beam refinement based at least in part on reception of one or more reference signals associated with reference signal resources of the multiple reference signal resource sets.
3 . The UE of claim 1 , wherein the one or more processors are further configured to perform the joint procedure of the base station beam refinement and the UE beam refinement comprising: receipt, using a first UE beam, of a first reference signal associated with a first reference signal resource of the first reference signal resource set, associated with the first base station beam; receipt, using a second UE beam, of a second reference signal associated with a second reference signal resource of the first reference signal resource set, associated with the first base station beam; receipt, using the first UE beam, of a third reference signal associated with a third reference signal resource of the second reference signal resource set, associated with the second base station beam; and receipt, using the second UE beam, of a fourth reference signal associated with a fourth reference signal resource of the second reference signal resource set, associated with the second base station beam.
4 . The UE of claim 3 , wherein the one or more processors, to perform beam refinement, are further configured to: determine to use the first UE beam or the second UE beam for subsequent communications using the first base station beam associated with the first reference signal resource set; or determine to use the first UE beam or the second UE beam for subsequent communications using the second base station beam associated with the second reference signal resource set.
5 . The UE of claim 1 , wherein the CSI configuration indicates, via a first transmission configuration indicator (TCI) state identification, that the first reference signal resource set is associated with the first base station beam, and wherein the CSI configuration indicates, via a second TCI state identification, that the second reference signal resource set is associated with the second base station beam.
6 . The UE of claim 1 , wherein the one or more processors, to perform base station refinement, are further configured to determine one or more base station beams, paired with one or more UE beams, to recommend for subsequent communications; or transmit a report that indicates the one or more base station beams to recommend for the subsequent communications.
7 . The UE of claim 6 , wherein the report indicates a base station beam, of the one or more base station beams, via one or more of: an identification of a reference signal resource set associated with the base station beam, or a resource identification of a reference signal resource of the reference signal resource set associated with the base station beam.
8 . The UE of claim 7 , wherein the resource identification comprises: a resource identification as defined in radio resource control signaling, or a resource identification as defined by a location index of a resource of an associated reference signal resource set.
9 . The UE of claim 8 , wherein the location index comprises one or more of: an index associated with any location within the associated reference signal resource set, or an index associated with a particular location within the associated reference signal resource set.
10 . The UE of claim 6 , wherein the report indicates one or more beam metrics associated with the one or more base station beams.
11 . The UE of claim 1 , wherein the CSI configuration indicates a configuration of a first set of channel measurement resources with repetitions to be used to receive, via multiple UE beams, a first set of reference signals transmitted via the first base station beam, wherein the CSI configuration indicates a configuration of a first set of interference measurement resources with repetitions, paired with the first set of channel measurement resources, to be used to receive, via the multiple UE beams, the first set of reference signals transmitted via the first base station beam, wherein the CSI configuration indicates a configuration of a second set of channel measurement resources with repetitions to be used to receive, via the multiple UE beams, a second set of reference signals transmitted via the second base station beam, and wherein the CSI configuration indicates a configuration of a second set of interference measurement resources with repetitions, paired with the second set of channel measurement resources, to be used to receive, via the second base station beam using multiple UE beams, the second set of reference signals transmitted via the second base station beam.
12 . The UE of claim 11 , wherein the one or more processors, to perform beam refinement, are further configured to: measure a layer 1 signal-to-interference-plus-noise ratio associated with pairs of channel measurement resources and interference measurement resources using multiple UE beams.
13 . A base station for wireless communication, comprising: one or more memories; and one or more processors, coupled to the one or more memories, configured to: transmit a channel state information (CSI) configuration associated with a joint procedure of base station beam refinement and user equipment (UE) beam refinement, associated with a UE, wherein the CSI configuration is associated with multiple reference signal resource sets that are each associated with a different base station beam of multiple base station beams, and wherein each reference signal resource set, of the multiple reference signal resource sets, includes multiple reference signal repetitions for a particular base station beam of the multiple base station beams, wherein the CSI configuration includes a first indication, within a repetition field associated with all reference signal resources in a first reference signal resource set, that all reference signal resources in the first reference signal resource set are associated with a first base station beam, and wherein the CSI configuration includes a second indication, within a repetition field associated with all reference signal resources in a second reference signal resource set, that all reference signal resources in the second reference signal resource set are associated with a second base station beam; and transmit, for each reference signal resource set of the multiple reference signal resource sets, the multiple reference signal repetitions for the particular base station beam, wherein the multiple reference signal repetitions for the particular base station beam are configured to be received using different beams to determine preferred UE beams for pairing with each base station beam of the multiple base station beams.
14 . The base station of claim 13 , wherein the one or more processors are further configured to: receive a report, based at least in part on the CSI configuration, that indicates one or more base station beams recommended for subsequent communications with the UE.
15 . The base station of claim 13 , wherein the base station beam refinement comprises: a determination of one or more base station beams, paired with one or more UE beams, to recommend for subsequent communications.
16 . The base station of claim 13 , wherein the CSI configuration indicates, via a first transmission configuration indicator (TCI) state identification, that the first reference signal resource set is associated with the first base station beam, and wherein the CSI configuration indicates, via a second TCI state identification, that the second reference signal resource set is associated with the second base station beam.
17 . The base station of claim 13 , wherein a report, that is based at least in part on the CSI configuration and indicates one or more base station beams recommended for subsequent communications with the UE indicates a base station beam, of the one or more base station beams, via one or more of: an identification of a reference signal resource set associated with the base station beam, or a resource identification of a reference signal resource of the reference signal resource set associated with the base station beam.
18 . The base station of claim 17 , wherein the resource identification comprises: a resource identification as defined in radio resource control signaling, or a resource identification as defined by a location index of a resource of an associated reference signal resource set.
19 . The base station of claim 18 , wherein the location index comprises one or more of: an index associated with any location within the associated reference signal resource set, or an index associated with a particular location within the associated reference signal resource set.
20 . The base station of claim 13 , wherein the CSI configuration indicates a configuration of a first set of channel measurement resources with repetitions to be used to receive, via multiple UE beams, a first set of reference signals transmitted via the first base station beam, wherein the CSI configuration indicates a configuration of a first set of interference measurement resources with repetitions, paired with the first set of channel measurement resources, to be used to receive, via the multiple UE beams, the first set of reference signals transmitted via the first base station beam, wherein the CSI configuration indicates a configuration of a second set of channel measurement resources with repetitions to be used to receive, via the multiple UE beams, a second set of reference signals transmitted via the second base station beam, and wherein the CSI configuration indicates a configuration of a second set of interference measurement resources with repetitions, paired with the second set of channel measurement resources, to be used to receive, via the second base station beam using multiple UE beams, the second set of reference signals transmitted via the second base station beam.

Description

CROSS-REFERENCE TO RELATED APPLICATION This Patent Application claims priority to U.S. Provisional Patent Application No. 63/198,508, filed on Oct. 23, 2020, entitled “CHANNEL STATE INFORMATION REPORT CONFIGURATION,” and assigned to the assignee hereof. The disclosure of the prior Application is considered part of and is incorporated by reference into this Patent Application. FIELD OF THE DISCLOSURE Aspects of the present disclosure generally relate to wireless communication and to techniques and apparatuses for configuring a channel state information report configuration. BACKGROUND Wireless communication systems are widely deployed to provide various telecommunication services such as telephony, video, data, messaging, and broadcasts. Typical wireless communication systems may employ multiple-access technologies capable of supporting communication with multiple users by sharing available system resources (e.g., bandwidth, transmit power, or the like). Examples of such multiple-access technologies include code division multiple access (CDMA) systems, time division multiple access (TDMA) systems, frequency-division multiple access (FDMA) systems, orthogonal frequency-division multiple access (OFDMA) systems, single-carrier frequency-division multiple access (SC-FDMA) systems, time division synchronous code division multiple access (TD-SCDMA) systems, and Long Term Evolution (LTE). LTE/LTE-Advanced is a set of enhancements to the Universal Mobile Telecommunications System (UMTS) mobile standard promulgated by the Third Generation Partnership Project (3GPP). A wireless network may include a number of base stations (BSs) that can support communication for a number of user equipment (UEs). A UE may communicate with a BS via the downlink and uplink. “Downlink” (or “forward link”) refers to the communication link from the BS to the UE, and “uplink” (or “reverse link”) refers to the communication link from the UE to the BS. As will be described in more detail herein, a BS may be referred to as a Node B, a gNB, an access point (AP), a radio head, a transmit receive point (TRP), a New Radio (NR) BS, a 5G Node B, or the like. The above multiple access technologies have been adopted in various telecommunication standards to provide a common protocol that enables different user equipment to communicate on a municipal, national, regional, and even global level. NR, which may also be referred to as 5G, is a set of enhancements to the LTE mobile standard promulgated by the 3GPP. NR is designed to better support mobile broadband Internet access by improving spectral efficiency, lowering costs, improving services, making use of new spectrum, and better integrating with other open standards using orthogonal frequency division multiplexing (OFDM) with a cyclic prefix (CP) (CP-OFDM) on the downlink (DL), using CP-OFDM and/or SC-FDM (e.g., also known as discrete Fourier transform spread OFDM (DFT-s-OFDM)) on the uplink (UL), as well as supporting beamforming, multiple-input multiple-output (MIMO) antenna technology, and carrier aggregation. As the demand for mobile broadband access continues to increase, further improvements in LTE, NR, and other radio access technologies remain useful. SUMMARY Some aspects described herein relate to a method of wireless communication performed by a user equipment (UE). The method may include receiving a channel state information (CSI) report configuration associated with multiple reference signal resource sets, all reference signal resources in each reference signal resource set associated with a different base station beam, for one or more beam measurements. The method may include receiving reference signals of the reference signal resource sets. Some aspects described herein relate to a method of wireless communication performed by a base station. The method may include transmitting a CSI report configuration associated with multiple reference signal resource sets, all reference signal resources in each reference signal resource set associated with a different base station beam, for one or more of channel measurements or interference measurements. The method may include transmitting reference signals of the multiple reference signal resource sets. Some aspects described herein relate to a UE for wireless communication. The user equipment may include a memory and one or more processors coupled to the memory. The one or more processors may be configured to receive a CSI report configuration associated with multiple reference signal resource sets, all reference signal resources in each reference signal resource set associated with a different base station beam, for one or more beam measurements. The one or more processors may be configured to receive reference signals of the reference signal resource sets. Some aspects described herein relate to a base station for wireless communication. The base station may include a memory and one or more processors coupled to the memory. The one or more proc