# US 12,004,075 B2 · Physical cell identifier limit configuration > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,004,075 B2 - Document ID: US12004075B2 - Status: Granted - Kind: B2 - Application number: 17/243,287 - Filed: 2021-04-28 - Published: 2021-11-04 - Granted: 2024-06-04 - Earliest claimed: 2020-04-30 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Yan Zhou; Qian Zhang; Jelena Damnjanovic; Tao Luo - Web page: https://patentgrep.com/patent/US12004075B2 ## CPC - H04W 48/16: Discovering, processing access restriction or access information - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0091: {Signalling for the administration of the divided path, e.g. signalling of configuration information} - H04W 8/02: Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks - H04W 36/362: {Conditional handover} - H04L 5/0007: {the frequencies being orthogonal, e.g. OFDM(A) or DMT} - H04W 36/00692: {using simultaneous multiple data streams, e.g. cooperative multipoint [CoMP], carrier aggregation [CA] or multiple input multiple output [MIMO] (allocation of physical resources in CoMP or in CA H04L5/0035)} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) ## Abstract Methods, systems, and devices for wireless communications are described. A user equipment (UE) may store configurations for candidate physical cell identifiers (PCIs) that the UE may select from for inter-cell mobility. A base station or a UE or both may identify a first configuration indicating a number of configured PCIs for inter-cell mobility operations. The base station or the UE or both may identify a second configuration indicating a number of selected PCIs for inter-cell mobility operations. In some cases, the selected PCIs may be a subset of the configured PCIs. Identifying the number of configured PCIs and the number of selected PCIs by the base station and UE may be based on a capability report configured by the UE. The UE and the base station may perform an inter-cell mobility operation based on stored cell configurations associated with the configured PCIs and the selected PCIs. ## Claims ### Claim 1 A method for wireless communications at a user equipment (UE), comprising: identifying a first configuration indicating a first maximum number of configured physical cell identifiers and a component carrier for inter-cell mobility operations; identifying a second configuration indicating a second maximum number of selected physical cell identifiers and the component carrier for the inter-cell mobility operations, wherein the selected physical cell identifiers comprises a subset of the configured physical cell identifiers; and performing an inter-cell mobility operation based at least in part on stored cell configurations associated with the configured physical cell identifiers and the selected physical cell identifiers. ### Claim 2 (depends on 1) The method of claim 1, wherein the first maximum number of configured physical cell identifiers and the second maximum number of selected physical cell identifiers are identified based at least in part on an inter-cell mobility mode configured for the UE. ### Claim 3 (depends on 2) The method of claim 2, wherein the first maximum number of configured physical cell identifiers for a first inter-cell mobility mode comprises a maximum number of configured physical cell identifiers per component carrier. ### Claim 4 (depends on 2) The method of claim 2, wherein the first maximum number of configured physical cell identifiers for a first inter-cell mobility mode configured with carrier aggregation comprises a maximum number of configured physical cell identifiers that is applicable to a group of aggregated component carriers. ### Claim 5 (depends on 2) The method of claim 2, wherein the first maximum number of configured physical cell identifiers for a second inter-cell mobility mode comprises a maximum number of configured physical cell identifiers in a group of candidate serving cells. ### Claim 6 (depends on 2) The method of claim 2, wherein the second maximum number of selected physical cell identifiers for a first inter-cell mobility mode comprises a maximum number of selected physical cell identifiers per component carrier. ### Claim 7 (depends on 2) The method of claim 2, wherein the second maximum number of selected physical cell identifiers for a first inter-cell mobility mode configured with carrier aggregation comprises a maximum number of selected physical cell identifiers that is applicable to a group of aggregated component carriers. ### Claim 8 (depends on 2) The method of claim 2, wherein the second maximum number of selected physical cell identifiers for a second inter-cell mobility mode comprises a maximum number of selected physical cell identifiers in a group of candidate serving cells. ### Claim 9 (depends on 2) The method of claim 2, wherein the inter-cell mobility mode comprises a first inter-cell mobility mode that associates each transmission reception point from a group of transmission reception points of serving cell with a unique physical cell identifier. ### Claim 10 (depends on 2) The method of claim 2, wherein the inter-cell mobility mode comprises a second inter-cell mobility mode that associates each serving cell from a group of configured serving cells with a unique physical cell identifier. ### Claim 11 (depends on 1) The method of claim 1, further comprising: transmitting a capability report associated with storing cell configurations, wherein the first configuration, the second configuration, or both, are based at least in part on the capability report. ### Claim 12 (depends on 1) The method of claim 1, further comprising: identifying a set of configured physical cell identifiers based at least in part on a first measurement type having a first measurement periodicity, wherein the set of configured physical cell identifiers is based at least in part on the first configuration. ### Claim 13 (depends on 12) The method of claim 12, further comprising: identifying a set of selected physical cell identifiers based at least in part on a second measurement type having a second measurement periodicity that is less than the first measurement periodicity, wherein the set of selected physical cell identifiers is based at least in part on the second configuration. ### Claim 14 (depends on 13) The method of claim 13, wherein: the first measurement type comprises a layer three measurement; and the second measurement type comprises a layer one measurement. ### Claim 15 A method for wireless communications at a network entity, comprising: identifying a first configuration indicating a first maximum number of configured physical cell identifiers and a component carrier for inter-cell mobility operations; identifying a second configuration indicating a second maximum number of selected physical cell identifiers and the component carrier for the inter-cell mobility operations, wherein the selected physical cell identifiers comprises a subset of the configured physical cell identifiers; and performing an inter-cell mobility operation based at least in part on stored cell configurations associated with the configured physical cell identifiers and the selected physical cell identifiers. ### Claim 16 (depends on 15) The method of claim 15, wherein the first maximum number of configured physical cell identifiers and the second maximum number of selected physical cell identifiers are identified based at least in part on an inter-cell mobility mode configured for a user equipment (UE). ### Claim 17 (depends on 16) The method of claim 16, wherein the first maximum number of configured physical cell identifiers for a first inter-cell mobility mode comprises a maximum number of configured physical cell identifiers per component carrier. ### Claim 18 (depends on 16) The method of claim 16, wherein the first maximum number of configured physical cell identifiers for a first inter-cell mobility mode configured with carrier aggregation comprises a maximum number of configured physical cell identifiers that is applicable to a group of aggregated component carriers. ### Claim 19 (depends on 16) The method of claim 16, wherein the first maximum number of configured physical cell identifiers for a second inter-cell mobility mode comprises a maximum number of configured physical cell identifiers in a group of candidate serving cells. ### Claim 20 (depends on 16) The method of claim 16, wherein the second maximum number of selected physical cell identifiers for a first inter-cell mobility mode comprises a maximum number of selected physical cell identifiers per component carrier. ### Claim 21 (depends on 16) The method of claim 16, wherein the second maximum number of selected physical cell identifiers for a first inter-cell mobility mode configured with carrier aggregation comprises a maximum number of selected physical cell identifiers that is applicable to a group of aggregated component carriers. ### Claim 22 (depends on 16) The method of claim 16, wherein the second maximum number of selected physical cell identifiers for a second inter-cell mobility mode comprises a maximum number of selected physical cell identifiers in a group of candidate serving cells. ### Claim 23 (depends on 16) The method of claim 16, wherein the inter-cell mobility mode comprises a first inter-cell mobility mode that associates each transmission reception point from a group of transmission reception points of serving cell with a unique physical cell identifier. ### Claim 24 (depends on 16) The method of claim 16, wherein the inter-cell mobility mode comprises a second inter-cell mobility mode that associates each serving cell from a group of configured serving cells with a unique physical cell identifier. ### Claim 25 (depends on 15) The method of claim 15, further comprising: receiving a capability report associated with storing cell configurations, wherein the first configuration, the second configuration, or both, are based at least in part on the capability report. ### Claim 26 (depends on 15) The method of claim 15, further comprising: identifying a set of configured physical cell identifiers based at least in part on a first measurement type having a first measurement periodicity, wherein the set of configured physical cell identifiers is based at least in part on the first configuration. ### Claim 27 (depends on 26) The method of claim 26, further comprising: identifying a set of selected physical cell identifiers based at least in part on a second measurement type having a second measurement periodicity that is less than the first measurement periodicity, wherein the set of selected physical cell identifiers is based at least in part on the second configuration. ### Claim 28 (depends on 27) The method of claim 27, wherein: the first measurement type comprises a layer three measurement; and the second measurement type comprises a layer one measurement. ### Claim 29 An apparatus for wireless communications at a user equipment (UE), comprising: one or more processors, one or more memories coupled with the one or more processors; and one or more processor-readable instructions stored in the one or more memories and executable by the one or more processors individually or collectively to cause the apparatus to: identify a first configuration indicating a first maximum number of configured physical cell identifiers and a component carrier for inter-cell mobility operations; identify a second configuration indicating a second maximum number of selected physical cell identifiers and the component carrier for the inter-cell mobility operations, wherein the selected physical cell identifiers comprises a subset of the configured physical cell identifiers; and perform an inter-cell mobility operation based at least in part on stored cell configurations associated with the configured physical cell identifiers and the selected physical cell identifiers. ### Claim 30 An apparatus for wireless communications at a network entity, comprising: one or more processors, one or more memories coupled with the one or more processors; and one or more processor-readable instructions stored in the one or more memories and executable by the one or more processors individually or collectively to cause the apparatus to: identify a first configuration indicating a first maximum number of configured physical cell identifiers and a component carrier for inter-cell mobility operations; identify a second configuration indicating a second maximum number of selected physical cell identifiers and the component carrier for the inter-cell mobility operations, wherein the selected physical cell identifiers comprises a subset of the configured physical cell identifiers; and perform an inter-cell mobility operation based at least in part on stored cell configurations associated with the configured physical cell identifiers and the selected physical cell identifiers.