# US 2021/0345201 A1 · Beam measurement for a cell subset > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0345201 A1 - Document ID: US20210345201A1 - Status: Published application - Kind: A1 - Application number: 17/273,334 - Filed: 2019-09-27 - Published: 2021-11-04 - Earliest claimed: 2018-09-29 - Assignees: QUALCOMM Incorporated - Applicants: Qualcomm Incorporated - Inventors: Peng CHENG; Huichun LIU - Web page: https://patentgrep.com/patent/US20210345201A1 ## CPC - H04W 36/0085: {Hand-off measurements} - H04W 24/10: Scheduling measurement reports {; Arrangements for measurement reports} - H04W 36/0058: {Transmission of hand-off measurement information, e.g. measurement reports} - H04W 36/0083: {Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists} - H04W 48/16: Discovering, processing access restriction or access information - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Methods, systems, and devices for wireless communications are described. A user equipment (UE) measure and report cell measurements for neighboring cells to assist the wireless network with handover decisions. In some cases, the UE may be configured to report beam-level measurements for just a subset of neighboring cells instead of each neighboring cell. For example, the UE may measure, or report beam measurements for a subset of the neighboring cells which meet configured criteria or are included in a subset of cells configured by the serving cell. Techniques for configuring and maintaining the subset of cells are described herein. For example, the cells in the subset may be configured by the UE or the serving cell of UE. A cell may also be removed from the subset if the cell does not continue to meet criteria for being included in the subset. ## Claims ### Claim 1 A method for wireless communication at a user equipment (UE), comprising: receiving, from a serving cell, indicators of a configuration for measurement reporting; performing cell measurements for a set of neighboring cells based at least in part on the configuration; reporting the cell measurements for the set of neighboring cells to the serving cell; identifying a subset of the neighboring cells based at least in part on one or more of the configuration or the cell measurements; performing beam measurements for the subset of the neighboring cells based at least in part on the configuration; and reporting the beam measurements for the subset of the neighboring cells to the serving cell. ### Claim 2 (depends on 1) The method of claim 1, further comprising: receiving one or more thresholds from the serving cell; and identifying the subset of the neighboring cells based at least in part on the one or more thresholds. ### Claim 3 (depends on 2) The method of claim 2, further comprising: identifying the subset of the neighboring cells based at least in part on a signal strength of the subset of the neighboring cells satisfying the one or more thresholds. ### Claim 4 (depends on 2) The method of claim 2, further comprising: identifying the subset of the neighboring cells based at least in part on a signal strength of the subset of the neighboring cells satisfying a first threshold and a signal strength of the serving cell satisfying a second threshold. ### Claim 5 (depends on 2) The method of claim 2, further comprising: identifying the subset of the neighboring cells based at least in part on a standard deviation of beam level quality satisfying the one or more thresholds. ### Claim 6 (depends on 1) The method of claim 1, further comprising: receiving an indicator that identifies the subset of the neighboring cells based at least in part on the cell measurements. ### Claim 7 (depends on 1) The method of claim 1, further comprising: periodically reporting the cell measurements for the set of neighboring cells to the serving cell; and receiving an indicator that identifies the subset of the neighboring cells based at least in part on the periodic reporting. ### Claim 8 (depends on 1) The method of claim 1, further comprising: identifying an order for the subset of the neighboring cells based at least in part on one or more of a cell level quality or a cell load. ### Claim 9 (depends on 1) The method of claim 1, further comprising: receiving a threshold from the serving cell; and identifying a trigger for reporting the cell measurements based at least in part on a difference between a neighbor cell signal quality and a serving cell signal quality satisfying the threshold. ### Claim 10 (depends on 1) The method of claim 1, further comprising: receiving a threshold from the serving cell; and identifying a trigger for reporting the cell measurements based at least in part on a neighbor cell signal quality satisfying the threshold. ### Claim 11 (depends on 1) The method of claim 1, further comprising: receiving one or more thresholds from the serving cell; and identifying a trigger for reporting the cell measurements based at least in part on a neighbor cell signal quality satisfying a first threshold and a serving cell signal quality satisfying a second threshold. ### Claim 12 (depends on 1) The method of claim 1, further comprising: identifying a trigger for reporting the cell measurements based at least in part on a neighbor cell signal quality not satisfying the threshold, wherein a neighbor cell is removed from the subset of neighboring cells based at least in part on reporting the cell measurements. ### Claim 13 (depends on 1) The method of claim 1, further comprising: receiving a threshold from the serving cell; and identifying a trigger for reporting the cell measurements based at least in part on a difference between a neighbor cell signal quality and a serving cell signal quality not satisfying the threshold, wherein a neighbor cell is removed from the subset of neighboring cells based at least in part on reporting the cell measurements. ### Claim 14 (depends on 1) The method of claim 1, further comprising: receiving one or more thresholds from the serving cell; and identifying a trigger for reporting the cell measurements based at least in part on a neighbor cell signal quality not satisfying a first threshold or a serving cell signal quality not satisfying a second threshold, wherein a neighbor cell is removed from the subset of neighboring cells based at least in part on reporting the cell measurements. ### Claim 15 (depends on 1) The method of claim 1, wherein performing the cell measurements for the set of neighboring cells comprises: measuring one or more of a synchronization signal block (SSB) or a channel state information reference signal (CSI-RS) for each cell of the set of neighboring cells. ### Claim 16 A method for wireless communication at a base station, comprising: transmitting, to a user equipment (UE), indicators of a configuration for measurement reporting; receiving cell measurements for a set of neighboring cells from the UE based at least in part on the configuration; identifying a subset of the neighboring cells based at least in part on one or more of the configuration or the cell measurements; and receiving beam measurements for the subset of the neighboring cells from the UE based at least in part on the configuration. ### Claim 17 (depends on 16) The method of claim 16, further comprising: configuring the UE with one or more thresholds; and identifying the subset of the neighboring cells based at least in part on the one or more thresholds. ### Claim 18 (depends on 17) The method of claim 17, further comprising: identifying the subset of the neighboring cells based at least in part on a signal strength of the subset of the neighboring cells satisfying the one or more thresholds. ### Claim 19 (depends on 17) The method of claim 17, further comprising: identifying the subset of the neighboring cells based at least in part on a signal strength of the subset of the neighboring cells satisfying a first threshold and a signal strength of the base station satisfying a second threshold. ### Claim 20 (depends on 17) The method of claim 17, further comprising: identifying the subset of the neighboring cells based at least in part on a standard deviation of beam level quality satisfying the one or more thresholds. ### Claim 21 (depends on 16) The method of claim 16, further comprising: selecting the subset of the neighboring cells based at least in part on the cell measurements for the set of neighboring cells; and transmitting an indicator that identifies the subset of the neighboring cells to the UE. ### Claim 22 (depends on 16) The method of claim 16, further comprising: periodically receiving the cell measurements for the set of neighboring cells; selecting the subset of the neighboring cells based at least in part on the cell measurements; and transmitting an indicator that identifies the subset of the neighboring cells. ### Claim 23 (depends on 16) The method of claim 16, further comprising: indicating an order for the subset of the neighboring cells based at least in part on one or more of a cell level quality or a cell load. ### Claim 24 (depends on 16) The method of claim 16, further comprising: configuring the UE with a trigger for reporting the cell measurements based at least in part on a difference between a neighbor cell signal quality and a serving cell signal quality satisfying the threshold. ### Claim 25 (depends on 16) The method of claim 16, further comprising: transmitting a threshold to the UE; and configuring the UE with a trigger for reporting the cell measurements based at least in part on a neighbor cell signal quality satisfying the threshold. ### Claim 26 (depends on 16) The method of claim 16, further comprising: transmitting one or more thresholds to the UE; and configuring the UE with a trigger for reporting the cell measurements based at least in part on a neighbor cell signal quality satisfying a first threshold and a serving cell signal quality satisfying a second threshold. ### Claim 27 (depends on 16) The method of claim 16, further comprising: transmitting a threshold to the UE; configuring the UE with a trigger for reporting the cell measurements based at least in part on a neighbor cell signal quality not satisfying the threshold; and removing a neighbor cell from the subset of neighboring cells based at least in part on the reported cell measurements. ### Claim 28 (depends on 16) The method of claim 16, further comprising: transmitting a threshold to the UE; configuring the UE with a trigger for reporting the cell measurements based at least in part on a difference between a neighbor cell signal quality and a serving cell signal quality not satisfying the threshold; and removing a neighbor cell from the subset of neighboring cells based at least in part on the reported cell measurements. ### Claim 29 An apparatus for wireless communication at a user equipment (UE), comprising: means for receiving, from a serving cell, indicators of a configuration for measurement reporting; means for performing cell measurements for a set of neighboring cells based at least in part on the configuration; means for reporting the cell measurements for the set of neighboring cells to the serving cell; means for identifying a subset of the neighboring cells based at least in part on one or more of the configuration or the cell measurements; means for performing beam measurements for the subset of the neighboring cells based at least in part on the configuration; and means for reporting the beam measurements for the subset of the neighboring cells to the serving cell. ### Claim 30 An apparatus for wireless communication at a base station, comprising: means for transmitting, to a user equipment (UE), indicators of a configuration for measurement reporting; means for receiving cell measurements for a set of neighboring cells from the UE based at least in part on the configuration; means for identifying a subset of the neighboring cells based at least in part on one or more of the configuration or the cell measurements; and means for receiving beam measurements for the subset of the neighboring cells from the UE based at least in part on the configuration.