# US 11,910,255 B2 · 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 11,910,255 B2 - Document ID: US11910255B2 - Status: Granted - Kind: B2 - Application number: 17/273,334 - Filed: 2019-09-27 - Published: 2021-11-04 - Granted: 2024-02-20 - Earliest claimed: 2018-09-29 - Assignees: QUALCOMM Incorporated - Applicants: Qualcomm Incorporated; Peng Cheng; Huichun Liu - Inventors: Peng Cheng; Huichun Liu - Web page: https://patentgrep.com/patent/US11910255B2 ## 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; transmitting a periodic measurement report indicating the cell measurements for the set of neighboring cells to the serving cell; receiving an indicator of a subset of the set of neighboring cells based at least in part on the periodic measurement report and one or more of the configuration or the cell measurements; performing beam measurements for the subset of the set of neighboring cells based at least in part on the configuration; and reporting the beam measurements for the subset of the set of 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 set of 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 set of neighboring cells based at least in part on a signal strength of the subset of the set of 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 set of neighboring cells based at least in part on a signal strength of the subset of the set of 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 set of 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 set of neighboring cells based at least in part on the cell measurements. ### Claim 7 (depends on 1) The method of claim 1, further comprising: identifying an order for the subset of the set of neighboring cells based at least in part on one or more of a cell level quality or a cell load. ### Claim 8 (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 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 neighbor cell signal quality satisfying the threshold. ### Claim 10 (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 11 (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 not satisfying the threshold, wherein a neighbor cell is removed from the subset of the set of neighboring cells based at least in part on reporting the cell measurements. ### Claim 12 (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 the set 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 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 the set of neighboring cells based at least in part on reporting the cell measurements. ### Claim 14 (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 15 A method for wireless communication at a network device, comprising: transmitting, to a user equipment (UE), indicators of a configuration for measurement reporting; receiving a periodic measurement report indicating cell measurements for a set of neighboring cells from the UE based at least in part on the configuration; selecting a subset of the set of neighboring cells based at least in part on the cell measurements; transmitting an indicator of the subset of the set of neighboring cells based at least in part on the periodic measurement report and one or more of the configuration or the cell measurements; and receiving beam measurements for the subset of the set of neighboring cells from the UE based at least in part on the configuration. ### Claim 16 (depends on 15) The method of claim 15, further comprising: configuring the UE with one or more thresholds; and identifying the subset of the set of neighboring cells based at least in part on the one or more thresholds. ### Claim 17 (depends on 16) The method of claim 16, further comprising: identifying the subset of the set of neighboring cells based at least in part on a signal strength of the subset of the set of neighboring cells satisfying the one or more thresholds. ### Claim 18 (depends on 16) The method of claim 16, further comprising: identifying the subset of the set of neighboring cells based at least in part on a signal strength of the subset of the set of neighboring cells satisfying a first threshold and a signal strength of the network device satisfying a second threshold. ### Claim 19 (depends on 16) The method of claim 16, further comprising: identifying the subset of the set of neighboring cells based at least in part on a standard deviation of beam level quality satisfying the one or more thresholds. ### Claim 20 (depends on 15) The method of claim 15, further comprising: selecting the subset of the set of 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 set of neighboring cells to the UE. ### Claim 21 (depends on 15) The method of claim 15, further comprising: indicating an order for the subset of the set of neighboring cells based at least in part on one or more of a cell level quality or a cell load. ### Claim 22 (depends on 15) The method of claim 15, 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 difference between a neighbor cell signal quality and a serving cell signal quality satisfying the threshold. ### Claim 23 (depends on 15) The method of claim 15, 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 24 (depends on 15) The method of claim 15, 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 25 (depends on 15) The method of claim 15, 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 the set of neighboring cells based at least in part on the reported cell measurements. ### Claim 26 (depends on 15) The method of claim 15, 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 the set of neighboring cells based at least in part on the reported cell measurements. ### Claim 27 An apparatus for wireless communication at a user equipment (UE), comprising: a processor; memory in electronic communication with the processor; and instructions stored in the memory executable by the processor to cause the apparatus to: receive, from a serving cell, indicators of a configuration for measurement reporting; perform cell measurements for a set of neighboring cells based at least in part on the configuration; transmit a periodic measurement report indicating the cell measurements for the set of neighboring cells to the serving cell; receive an indicator of a subset of the set of neighboring cells based at least in part on the periodic measurement report and one or more of the configuration or the cell measurements; perform beam measurements for the subset of the set of neighboring cells based at least in part on the configuration; and report the beam measurements for the subset of the set of neighboring cells to the serving cell. ### Claim 28 An apparatus for wireless communication at a network device, comprising: a processor; memory in electronic communication with the processor; and instructions stored in the memory executable by the processor to cause the apparatus to: transmit, to a user equipment (UE), indicators of a configuration for measurement reporting; receive a periodic measurement report indicating cell measurements for a set of neighboring cells from the UE based at least in part on the configuration; select a subset of the set of neighboring cells based at least in part on the cell measurements; transmit an indicator of the subset of the set of neighboring cells based at least in part on the periodic measurement report and one or more of the configuration or the cell measurements; and receive beam measurements for the subset of the set of neighboring cells from the UE based at least in part on the configuration.