# US 11,445,334 B1 · Request for on-demand positioning reference signal positioning session at a future time > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 11,445,334 B1 - Document ID: US11445334B1 - Status: Granted - Kind: B1 - Application number: 17/390,182 - Filed: 2021-07-30 - Granted: 2022-09-13 - Earliest claimed: 2021-07-30 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Jingchao Bao; Sony Akkarakaran; Tao Luo - Web page: https://patentgrep.com/patent/US11445334B1 ## CPC - H04W 4/02: Services making use of location information - H04W 4/029: Location-based management or tracking services - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 5/0023: {Time-frequency-space} - 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 Disclosed are techniques for wireless communication. In an aspect, a position determination entity (PDE) receives a request to schedule an on-demand PRS positioning session of a UE at a future time, wherein the request is configured to request a first set of parameters for the scheduled on-demand PRS positioning session, with an availability of one or more parameters of the first set of parameters at the future time being indeterminable when the request is received. PDE determines the availability of the one or more parameters at the future time. PDE determines a PRS configuration for the scheduled on-demand PRS positioning session in advance of the future time. ## Claims ### Claim 1 A method of operating a user equipment (UE), comprising: transmitting, to a position estimation entity, a request to schedule an on-demand positioning reference signal (PRS) positioning session of the UE at a future time, wherein the request is configured to request a first set of parameters for the scheduled on-demand PRS positioning session, with an availability of one or more parameters of the first set of parameters at the future time being indeterminable when the request is transmitted; and receiving, in response to the request and in advance of the future time, a PRS configuration for the scheduled on-demand PRS positioning session, wherein the PRS configuration includes a second set of parameters that is based at least in part on the availability of the one or more parameters at the future time. ### Claim 2 (depends on 1) The method of claim 1, wherein the PRS configuration comprises a downlink (DL) PRS configuration, an uplink (UL) PRS configuration, a sidelink (SL) PRS configuration, or a combination thereof. ### Claim 3 (depends on 1) The method of claim 1, wherein the request designates whether a respective parameter is mandatory or optional for each parameter in the first set of parameters. ### Claim 4 (depends on 1) The method of claim 1, wherein the first set of parameters includes at least one sidelink (SL) anchor. ### Claim 5 (depends on 4) The method of claim 4, wherein the first set of parameters includes, for the at least one SL anchor, an SL beam direction, an SL bandwidth or bandwidth part (BWP), a synchronization signal block (SSB) configuration, or a combination thereof. ### Claim 6 (depends on 4) The method of claim 4, wherein the one or more parameters that are indeterminable when the request is transmitted are associated with the at least one SL anchor due to mobility of the at least one SL anchor. ### Claim 7 (depends on 6) The method of claim 6, wherein one or more other parameters for at least one stationary anchor are determinable when the request is transmitted due to lack of mobility of the least one stationary anchor. ### Claim 8 (depends on 1) The method of claim 1, wherein the request specifies the future time via indication of a preferred start time and duration. ### Claim 9 (depends on 8) The method of claim 8, wherein the preferred start time and duration are specified via a set of slots, sub-frames or frames, or wherein the preferred start time and duration are specified in absolute time, or wherein the preferred start time and duration is specified via reference to a future measurement gap or PRS occasion of a current PRS configuration. ### Claim 10 (depends on 1) The method of claim 1, wherein at least one parameter in the first set of parameters is associated with at least one time constraint. ### Claim 11 (depends on 10) The method of claim 10, wherein the at least one time constraint limits when the at least one parameter can be requested, modified, or removed from association with the scheduled on-demand PRS positioning session. ### Claim 12 (depends on 1) The method of claim 1, wherein the PRS configuration is required to be received within a designated time window. ### Claim 13 (depends on 1) The method of claim 1, wherein the PRS configuration is received via a plurality of partial PRS configurations that cumulatively define each of the first set of parameters for the scheduled on-demand PRS positioning session. ### Claim 14 (depends on 1) The method of claim 1, wherein one or more requests for the PRS configuration and one or more responses carrying the PRS configuration include an identifier that is configured to distinguish the scheduled on-demand PRS positioning session from one or more other scheduled on-demand PRS positioning sessions. ### Claim 15 A method of operating a position estimation entity, comprising: receiving a request to schedule an on-demand positioning reference signal (PRS) positioning session of a user equipment (UE) at a future time, wherein the request is configured to request a first set of parameters for the scheduled on-demand PRS positioning session, with an availability of one or more parameters of the first set of parameters at the future time being indeterminable when the request is received; determining, in response to the request and in advance of the future time, the availability of the one or more parameters at the future time; determining a PRS configuration for the scheduled on-demand PRS positioning session, wherein the PRS configuration includes a second set of parameters that is based at least in part on the determination of the availability of the one or more parameters at the future time; and transmitting, in response to the request and in advance of the future time, the PRS configuration to the UE. ### Claim 16 (depends on 15) The method of claim 15, wherein the PRS configuration comprises a downlink (DL) PRS configuration, an uplink (UL) PRS configuration, a sidelink (SL) PRS configuration, or a combination thereof. ### Claim 17 (depends on 15) The method of claim 15, wherein the request designates whether a respective parameter is mandatory or optional for each parameter in the first set of parameters. ### Claim 18 (depends on 15) The method of claim 15, wherein the first set of parameters includes at least one sidelink (SL) anchor. ### Claim 19 (depends on 18) The method of claim 18, wherein the first set of parameters includes, for the at least one SL anchor, an SL beam direction, an SL bandwidth or bandwidth part (BWP), a synchronization signal block (SSB) configuration, or a combination thereof. ### Claim 20 (depends on 18) The method of claim 18, wherein the one or more parameters that are indeterminable when the request is transmitted are associated with the at least one SL anchor due to mobility of the at least one SL anchor. ### Claim 21 (depends on 20) The method of claim 20, wherein one or more other parameters for at least one stationary anchor are determinable when the request is transmitted due to lack of mobility of the least one stationary anchor. ### Claim 22 (depends on 15) The method of claim 15, wherein the request specifies the future time via indication of a preferred start time and duration. ### Claim 23 (depends on 22) The method of claim 22, wherein the preferred start time and duration are specified via a set of slots, sub-frames or frames, or wherein the preferred start time and duration are specified in absolute time, or wherein the preferred start time and duration is specified via reference to a future measurement gap or PRS occasion of a current PRS configuration. ### Claim 24 (depends on 15) The method of claim 15, wherein at least one parameter in the first set of parameters is associated with at least one time constraint. ### Claim 25 (depends on 24) The method of claim 24, wherein the at least one time constraint limits when the at least one parameter can be requested, modified, or removed from association with the scheduled on-demand PRS positioning session. ### Claim 26 (depends on 15) The method of claim 15, wherein the PRS configuration is required to be received within a designated time window. ### Claim 27 (depends on 15) The method of claim 15, wherein the PRS configuration is transmitted via a plurality of partial PRS configurations that cumulatively define each of the first set of parameters for the scheduled on-demand PRS positioning session. ### Claim 28 (depends on 15) The method of claim 15, wherein one or more requests for the PRS configuration and one or more responses carrying the PRS configuration include an identifier that is configured to distinguish the scheduled on-demand PRS positioning session from one or more other scheduled on-demand PRS positioning sessions. ### Claim 29 A user equipment (UE), comprising: a memory; at least one transceiver; and at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to: transmit, via the at least one transceiver, to a position estimation entity, a request to schedule an on-demand positioning reference signal (PRS) positioning session of the UE at a future time, wherein the request is configured to request a first set of parameters for the scheduled on-demand PRS positioning session, with an availability of one or more parameters of the first set of parameters at the future time being indeterminable when the request is transmitted; and receive, via the at least one transceiver, in response to the request and in advance of the future time, a PRS configuration for the scheduled on-demand PRS positioning session, wherein the PRS configuration includes a second set of parameters that is based at least in part on the availability of the one or more parameters at the future time. ### Claim 30 (depends on 29) The UE of claim 29, wherein the PRS configuration comprises a downlink (DL) PRS configuration, an uplink (UL) PRS configuration, a sidelink (SL) PRS configuration, or a combination thereof. ### Claim 31 (depends on 29) The UE of claim 29, wherein the request designates whether a respective parameter is mandatory or optional for each parameter in the first set of parameters. ### Claim 32 (depends on 29) The UE of claim 29, wherein the first set of parameters includes at least one sidelink (SL) anchor. ### Claim 33 (depends on 32) The UE of claim 32, wherein the first set of parameters includes, for the at least one SL anchor, an SL beam direction, an SL bandwidth or bandwidth part (BWP), a synchronization signal block (SSB) configuration, or a combination thereof. ### Claim 34 (depends on 32) The UE of claim 32, wherein the one or more parameters that are indeterminable when the request is transmitted are associated with the at least one SL anchor due to mobility of the at least one SL anchor. ### Claim 35 (depends on 34) The UE of claim 34, wherein one or more other parameters for at least one stationary anchor are determinable when the request is transmitted due to lack of mobility of the least one stationary anchor. ### Claim 36 (depends on 29) The UE of claim 29, wherein the request specifies the future time via indication of a preferred start time and duration. ### Claim 37 (depends on 36) The UE of claim 36, wherein the preferred start time and duration are specified via a set of slots, sub-frames or frames, or wherein the preferred start time and duration are specified in absolute time, or wherein the preferred start time and duration is specified via reference to a future measurement gap or PRS occasion of a current PRS configuration. ### Claim 38 (depends on 29) The UE of claim 29, wherein at least one parameter in the first set of parameters is associated with at least one time constraint. ### Claim 39 (depends on 38) The UE of claim 38, wherein the at least one time constraint limits when the at least one parameter can be requested, modified, or removed from association with the scheduled on-demand PRS positioning session. ### Claim 40 (depends on 29) The UE of claim 29, wherein the PRS configuration is required to be received within a designated time window. ### Claim 41 (depends on 29) The UE of claim 29, wherein the PRS configuration is received via a plurality of partial PRS configurations that cumulatively define each of the first set of parameters for the scheduled on-demand PRS positioning session. ### Claim 42 (depends on 29) The UE of claim 29, wherein one or more requests for the PRS configuration and one or more responses carrying the PRS configuration include an identifier that is configured to distinguish the scheduled on-demand PRS positioning session from one or more other scheduled on-demand PRS positioning sessions. ### Claim 43 A position estimation entity, comprising: a memory; at least one transceiver; and at least one processor communicatively coupled to the memory and the at least one transceiver, the at least one processor configured to: receive, via the at least one transceiver, a request to schedule an on-demand positioning reference signal (PRS) positioning session of a user equipment (UE) at a future time, wherein the request is configured to request a first set of parameters for the scheduled on-demand PRS positioning session, with an availability of one or more parameters of the first set of parameters at the future time being indeterminable when the request is received; determine, in response to the request and in advance of the future time, the availability of the one or more parameters at the future time; determine a PRS configuration for the scheduled on-demand PRS positioning session, wherein the PRS configuration includes a second set of parameters that is based at least in part on the determination of the availability of the one or more parameters at the future time; and transmit, via the at least one transceiver, in response to the request and in advance of the future time, the PRS configuration to the UE. ### Claim 44 (depends on 43) The position estimation entity of claim 43, wherein the PRS configuration comprises a downlink (DL) PRS configuration, an uplink (UL) PRS configuration, a sidelink (SL) PRS configuration, or a combination thereof. ### Claim 45 (depends on 43) The position estimation entity of claim 43, wherein the request designates whether a respective parameter is mandatory or optional for each parameter in the first set of parameters. ### Claim 46 (depends on 43) The position estimation entity of claim 43, wherein the first set of parameters includes at least one sidelink (SL) anchor. ### Claim 47 (depends on 46) The position estimation entity of claim 46, wherein the first set of parameters includes, for the at least one SL anchor, an SL beam direction, an SL bandwidth or bandwidth part (BWP), a synchronization signal block (SSB) configuration, or a combination thereof. ### Claim 48 (depends on 46) The position estimation entity of claim 46, wherein the one or more parameters that are indeterminable when the request is transmitted are associated with the at least one SL anchor due to mobility of the at least one SL anchor. ### Claim 49 (depends on 48) The position estimation entity of claim 48, wherein one or more other parameters for at least one stationary anchor are determinable when the request is transmitted due to lack of mobility of the least one stationary anchor. ### Claim 50 (depends on 43) The position estimation entity of claim 43, wherein the request specifies the future time via indication of a preferred start time and duration. ### Claim 51 (depends on 50) The position estimation entity of claim 50, wherein the preferred start time and duration are specified via a set of slots, sub-frames or frames, or wherein the preferred start time and duration are specified in absolute time, or wherein the preferred start time and duration is specified via reference to a future measurement gap or PRS occasion of a current PRS configuration. ### Claim 52 (depends on 43) The position estimation entity of claim 43, wherein at least one parameter in the first set of parameters is associated with at least one time constraint. ### Claim 53 (depends on 52) The position estimation entity of claim 52, wherein the at least one time constraint limits when the at least one parameter can be requested, modified, or removed from association with the scheduled on-demand PRS positioning session. ### Claim 54 (depends on 43) The position estimation entity of claim 43, wherein the PRS configuration is required to be received within a designated time window. ### Claim 55 (depends on 43) The position estimation entity of claim 43, wherein the PRS configuration is transmitted via a plurality of partial PRS configurations that cumulatively define each of the first set of parameters for the scheduled on-demand PRS positioning session. ### Claim 56 (depends on 43) The position estimation entity of claim 43, wherein one or more requests for the PRS configuration and one or more responses carrying the PRS configuration include an identifier that is configured to distinguish the scheduled on-demand PRS positioning session from one or more other scheduled on-demand PRS positioning sessions. ### Claim 57 A user equipment (UE), comprising: means for transmitting, to a position estimation entity, a request to schedule an on-demand positioning reference signal (PRS) positioning session of the UE at a future time, wherein the request is configured to request a first set of parameters for the scheduled on-demand PRS positioning session, with an availability of one or more parameters of the first set of parameters at the future time being indeterminable when the request is transmitted; and means for receiving, in response to the request and in advance of the future time, a PRS configuration for the scheduled on-demand PRS positioning session, wherein the PRS configuration includes a second set of parameters that is based at least in part on the availability of the one or more parameters at the future time. ### Claim 58 (depends on 57) The UE of claim 57, wherein the request designates whether a respective parameter is mandatory or optional for each parameter in the first set of parameters. ### Claim 59 (depends on 57) The UE of claim 57, wherein the first set of parameters includes at least one sidelink (SL) anchor. ### Claim 60 (depends on 57) The UE of claim 57, wherein the request specifies the future time via indication of a preferred start time and duration. ### Claim 61 (depends on 57) The UE of claim 57, wherein at least one parameter in the first set of parameters is associated with at least one time constraint. ### Claim 62 (depends on 57) The UE of claim 57, wherein the PRS configuration is required to be received within a designated time window. ### Claim 63 (depends on 57) The UE of claim 57, wherein the PRS configuration is received via a plurality of partial PRS configurations that cumulatively define each of the first set of parameters for the scheduled on-demand PRS positioning session. ### Claim 64 (depends on 57) The UE of claim 57, wherein one or more requests for the PRS configuration and one or more responses carrying the PRS configuration include an identifier that is configured to distinguish the scheduled on-demand PRS positioning session from one or more other scheduled on-demand PRS positioning sessions. ### Claim 65 A position estimation entity, comprising: means for receiving a request to schedule an on-demand positioning reference signal (PRS) positioning session of a user equipment (UE) at a future time, wherein the request is configured to request a first set of parameters for the scheduled on-demand PRS positioning session, with an availability of one or more parameters of the first set of parameters at the future time being indeterminable when the request is received; means for determining, in response to the request and in advance of the future time, the availability of the one or more parameters at the future time; means for determining a PRS configuration for the scheduled on-demand PRS positioning session, wherein the PRS configuration includes a second set of parameters that is based at least in part on the determination of the availability of the one or more parameters at the future time; and means for transmitting, in response to the request and in advance of the future time, the PRS configuration to the UE. ### Claim 66 (depends on 65) The position estimation entity of claim 65, wherein the request designates whether a respective parameter is mandatory or optional for each parameter in the first set of parameters. ### Claim 67 (depends on 65) The position estimation entity of claim 65, wherein the first set of parameters includes at least one sidelink (SL) anchor. ### Claim 68 (depends on 65) The position estimation entity of claim 65, wherein the request specifies the future time via indication of a preferred start time and duration. ### Claim 69 (depends on 65) The position estimation entity of claim 65, wherein at least one parameter in the first set of parameters is associated with at least one time constraint. ### Claim 70 (depends on 65) The position estimation entity of claim 65, wherein the PRS configuration is required to be received within a designated time window. ### Claim 71 (depends on 65) The position estimation entity of claim 65, wherein the PRS configuration is transmitted via a plurality of partial PRS configurations that cumulatively define each of the first set of parameters for the scheduled on-demand PRS positioning session. ### Claim 72 (depends on 65) The position estimation entity of claim 65, wherein one or more requests for the PRS configuration and one or more responses carrying the PRS configuration include an identifier that is configured to distinguish the scheduled on-demand PRS positioning session from one or more other scheduled on-demand PRS positioning sessions.