# US 2025/0097883 A1 · Method and device for controlling positioning reference signal configuration in wireless communication system > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0097883 A1 - Document ID: US20250097883A1 - Status: Published application - Kind: A1 - Application number: 18/885,365 - Filed: 2024-09-13 - Published: 2025-03-20 - Earliest claimed: 2023-09-15 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Taeseop LEE; Beomsik BAE; Seungri JIN; June HWANG - Web page: https://patentgrep.com/patent/US20250097883A1 ## CPC - H04W 64/00: Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management - 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 5/0051: {of dedicated pilots, i.e. pilots destined for a single user or terminal} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - 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 The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method of a UE in a wireless communication system is provided. The method of the UE comprises: receiving, from a network entity including a location management function (LMF), pre-defined positioning reference signal (PRS) configuration information; transmitting, to the network entity, a request for an on-demand PRS, wherein the request for the on-demand PRS includes periodicity information associated with a subcarrier spacing (SCS) of a synchronization signal block (SSB); and in response to transmitting the request for the on-demand PRS, receiving, from the network entity, PRS configuration information. ## Claims ### Claim 1 A method performed by a user equipment (UE) in a communication system, the method comprising: receiving, from a network entity performing a location management function (LMF), pre-defined positioning reference signal (PRS) configuration information; transmitting, to the network entity performing the LMF, a request for an on-demand PRS, wherein the request for the on-demand PRS includes periodicity information associated with a subcarrier spacing (SCS) of a synchronization signal block (SSB); and as a response to the transmission of the request for the on-demand PRS, receiving, from the network entity performing the LMF, PRS configuration information. ### Claim 2 (depends on 1) The method of claim 1, wherein the periodicity information is for a requested periodicity of a downlink (DL)—PRS resource set, and wherein the requested periodicity is associated with the SCS of the SSB of a current primary cell of the UE. ### Claim 3 (depends on 1) The method of claim 1, wherein the PRS configuration information is received via a long term evolution positioning protocol (LPP) provide assistance data message. ### Claim 4 (depends on 1) The method of claim 1, wherein the pre-defined positioning reference signal (PRS) configuration information is received via a long term evolution (LTE) positioning protocol (LPP) provide assistance data message, and wherein the request for the on-demand PRS is transmitted via a LPP request assistance data message. ### Claim 5 A method performed by a network entity in a communication system, the method comprising: transmitting, to a user equipment (UE), pre-defined positioning reference signal (PRS) configuration information; receiving, from the UE, a request for an on-demand PRS, wherein the request for the on-demand PRS includes periodicity information associated with a subcarrier spacing (SCS) of a synchronization signal block (SSB); and as a response to the reception of the request for the on-demand PRS, determining a need for a PRS transmission or a change of an ongoing PRS transmission. ### Claim 6 (depends on 5) The method of claim 5, wherein the periodicity information is for a requested periodicity of a downlink (DL)—PRS resource set, and wherein the requested periodicity is associated with the SCS of the SSB of a current primary cell of the UE. ### Claim 7 (depends on 5) The method of claim 5, the method further comprising: based on the determination, transmitting, to the UE, PRS configuration information. ### Claim 8 (depends on 7) The method of claim 7, wherein the PRS configuration information is transmitted via a long term evolution positioning protocol (LPP) provide assistance data message. ### Claim 9 (depends on 5) The method of claim 5, wherein the pre-defined positioning reference signal (PRS) configuration information is transmitted via a long term evolution (LTE) positioning protocol (LPP) provide assistance data message, and wherein the request for the on-demand PRS is received via a LPP request assistance data message. ### Claim 10 (depends on 5) The method of claim 5, the method further comprising: transmitting, to at least one base station, a PRS configuration request message for a new PRS transmission or a change of the pre-defined PRS configuration information; and receiving, from the at least one base station, a PRS configuration response message including PRS configuration information. ### Claim 11 A user equipment (UE) in a communication system, the UE comprising: a transceiver; and a controller coupled with the transceiver, and configured to: receive, from a network entity performing a location management function (LMF), pre-defined positioning reference signal (PRS) configuration information; transmit, to the network entity performing the LMF, a request for an on-demand PRS, wherein the request for the on-demand PRS includes periodicity information associated with a subcarrier spacing (SCS) of a synchronization signal block (SSB); and as a response to the transmission of the request for the on-demand PRS, receive, from the network entity performing the LMF, PRS configuration information. ### Claim 12 (depends on 11) The UE of claim 11, wherein the periodicity information is for a requested periodicity of a downlink (DL)—PRS resource set, and wherein the requested periodicity is associated with the SCS of the SSB of a current primary cell of the UE. ### Claim 13 (depends on 11) The UE of claim 11, wherein the PRS configuration information is received via a long term evolution positioning protocol (LPP) provide assistance data message. ### Claim 14 (depends on 11) The UE of claim 11, wherein the pre-defined positioning reference signal (PRS) configuration information is received via a long term evolution (LTE) positioning protocol (LPP) provide assistance data message, and wherein the request for the on-demand PRS is transmitted via a LPP request assistance data message. ### Claim 15 A network entity in a communication system, the network entity comprising: a transceiver; and a controller coupled with the transceiver, and configured to: transmit, to a user equipment (UE), pre-defined positioning reference signal (PRS) configuration information, receive, from the UE, a request for an on-demand PRS, wherein the request for the on-demand PRS includes periodicity information associated with a subcarrier spacing (SCS) of a synchronization signal block (SSB), and as a response to the reception of the request for the on-demand PRS, determine a need for a PRS transmission or a change of an ongoing PRS transmission. ### Claim 16 (depends on 15) The network entity of claim 15, wherein the periodicity information is for a requested periodicity of a downlink (DL)—PRS resource set, and wherein the requested periodicity is associated with the SCS of the SSB of a current primary cell of the UE. ### Claim 17 (depends on 16) The network entity of claim 16, wherein the controller is further configured to: based on the determination, transmit, to the UE, PRS configuration information. ### Claim 18 (depends on 15) The network entity of claim 15, wherein the PRS configuration information is transmitted via a long term evolution positioning protocol (LPP) provide assistance data message. ### Claim 19 (depends on 15) The network entity of claim 15, wherein the pre-defined positioning reference signal (PRS) configuration information is transmitted via a long term evolution (LTE) positioning protocol (LPP) provide assistance data message, and wherein the request for the on-demand PRS is received via a LPP request assistance data message. ### Claim 20 (depends on 15) The network entity of claim 15, wherein the controller is further configured to: transmit, to at least one base station, a PRS configuration request message for a new PRS transmission or a change of the pre-defined PRS configuration information, and receive, from the at least one base station, a PRS configuration response message including PRS configuration information.