# US 12,761,377 B2 · Method and device for acquiring global navigation satellite system (GNSS) positioning information > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,761,377 B2 - Document ID: US12761377B2 - Status: Granted - Kind: B2 - Application number: 18/139,622 - Filed: 2023-04-26 - Published: 2023-11-02 - Granted: 2026-10-13 - Earliest claimed: 2022-04-27 - Assignees: Samsung Electronics Co., Ltd. - Applicants: Samsung Electronics Co., Ltd. - Inventors: Min Wu; Feifei Sun - Web page: https://patentgrep.com/patent/US12761377B2 ## CPC - G01S 19/46: the supplementary measurement being of a radio-wave signal type - G01S 19/25: involving aiding data received from a cooperating element, e.g. assisted GPS - H04W 72/232: the control data signalling from the physical layer, e.g. DCI signalling - H04W 74/0833: Random access procedures, e.g. with 4-step access - G01S: RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The present disclosure provides a method performed by a user equipment (UE) for acquiring global navigation satellite system (GNSS) positioning information is provided. The method includes performing GNSS measurement to acquire the GNSS positioning information, and estimating a time-frequency offset based on the GNSS positioning information for pre-compensation of uplink transmission. ## Claims ### Claim 1 A method performed by a user equipment (UE) for acquiring global navigation satellite system (GNSS) positioning information, the method comprising: receiving, from a base station, a first indication based on a first subframe, wherein the first indication indicates that the UE is triggered to perform GNSS measurement; identifying that the UE is triggered to perform the GNSS measurement based on the first indication; performing the GNSS measurement to acquire the GNSS positioning information based on a GNSS measurement window; and estimating at least one of a time offset or a frequency offset based on the GNSS positioning information for pre-compensation of uplink transmission, wherein a start location of the GNSS measurement window corresponds to a second subframe that is after a predefined interval from the first subframe. ### Claim 2 A method performed by a base station for indicating to a user equipment (UE) to acquire global navigation satellite system (GNSS) positioning information, the method comprising: determining to trigger the UE to perform global navigation satellite system (GNSS) measurement; transmitting a first indication to the UE based on a first subframe, wherein the first indication indicates that the UE is triggered to perform GNSS measurement to acquire the GNSS positioning information; and receiving, from the UE, information associated with GNSS measurement, wherein the GNSS measurement is associated with a GNSS measurement window, wherein a start location of the GNSS measurement window corresponds to a second subframe that is after a predefined interval from the first subframe, and wherein at least one of a time offset or a frequency offset is associated with the GNSS positioning information for pre-compensation of uplink transmission. ### Claim 3 A user equipment (UE) comprising: a transceiver configured to transmit and receive signals; and a processor coupled to the transceiver and configured to: receive, from a base station, a first indication based on a first subframe, wherein the first indication indicates that the UE is triggered to perform global navigation satellite system (GNSS) measurement, identify that the UE is triggered to perform the GNSS measurement based on the first indication, perform the GNSS measurement to acquire the GNSS positioning information based on a GNSS measurement window, and estimate at least one of a time offset or a frequency offset based on the GNSS positioning information for pre-compensation of uplink transmission, wherein a start location of the GNSS measurement window corresponds to a second subframe that is after a predefined interval from the first subframe. ### Claim 4 A base station comprising: a transceiver configured to transmit and receive signals; and a processor coupled to the transceiver and configured to: determine to trigger a user equipment (UE) to perform global navigation satellite system (GNSS) measurement, transmit a first indication to the UE based on a first subframe, wherein the first indication indicates that the UE is triggered to perform the GNSS measurement to acquire GNSS positioning information, and receive, from the UE, information associated with the GNSS measurement, wherein the GNSS measurement is associated with a GNSS measurement window, wherein a start location of the GNSS measurement window corresponds to a second subframe that is after a predefined interval from the first subframe, and wherein at least one of a time offset or a frequency offset is associated with the GNSS positioning information for pre-compensation of uplink transmission. ### Claim 5 (depends on 1) The method of claim 1, wherein the first indication is included in a message received based on the first subframe, and wherein the message further includes a second indication indicating a length of the GNSS measurement window. ### Claim 6 (depends on 1) The method of claim 1, wherein the first indication is 1 bit, and a value of the first indication being a first value indicates that the UE is triggered to perform the GNSS measurement, and wherein the predefined interval corresponds to a number of subframes. ### Claim 7 (depends on 1) The method of claim 1, further comprising: transmitting, to the base station, a preferred length of the GNSS measurement window for the UE, and wherein a downlink signal from the base station is not expected to be received within the GNSS measurement window. ### Claim 8 (depends on 1) The method of claim 1, further comprising: receiving, from the base station, configuration information associated with triggering of GNSS measurement by the UE; identifying a validity time for previous GNSS position information is expired; and performing the GNSS measurement triggered by the UE based on a GNSS measurement window after identifying the validity time is expired. ### Claim 9 (depends on 1) The method of claim 1, further comprising: performing GNSS measurement triggered by the UE based on a GNSS measurement window identified by the UE. ### Claim 10 (depends on 2) The method of claim 2, wherein the first indication is included in a message transmitted based on the first subframe, and wherein the message further includes a second indication indicating a length of the GNSS measurement window. ### Claim 11 (depends on 2) The method of claim 2, wherein the first indication is 1 bit, and a value of the first indication being a first value indicates that the UE is triggered to perform the GNSS measurement, and wherein the predefined interval corresponds to a number of subframes. ### Claim 12 (depends on 2) The method of claim 2, further comprising: receiving, from the UE, a preferred length of the GNSS measurement window for the UE, and wherein a downlink signal of the base station is not expected to be transmitted within the GNSS measurement window. ### Claim 13 (depends on 3) The UE of claim 3, wherein the first indication is included in a message received based on the first subframe, and wherein the message further includes a second indication indicating a length of the GNSS measurement window. ### Claim 14 (depends on 3) The UE of claim 3, wherein the first indication is 1 bit, and a value of the first indication being a first value indicates that the UE is triggered to perform the GNSS measurement, and wherein the predefined interval corresponds to a number of subframes. ### Claim 15 (depends on 3) The UE of claim 3, wherein the processor is further configured to transmit, to the base station, a preferred length of the GNSS measurement window for the UE, and wherein a downlink signal from the base station is not expected to be received within the GNSS measurement window. ### Claim 16 (depends on 3) The UE of claim 3, wherein the processor is further configured to: receive, from the base station, configuration information associated with triggering of GNSS measurement by the UE; identify a validity time for previous GNSS position information is expired; and perform the GNSS measurement triggered by the UE based on a GNSS measurement window after identifying the validity time is expired. ### Claim 17 (depends on 3) The UE of claim 3, wherein the processor is further configured to: perform GNSS measurement triggered by the UE based on a GNSS measurement window identified by the UE. ### Claim 18 (depends on 4) The base station of claim 4, wherein the first indication is included in a message transmitted based on the first subframe, and wherein the message further includes a second indication indicating a length of the GNSS measurement window. ### Claim 19 (depends on 4) The base station of claim 4, wherein the first indication is 1 bit, and a value of the first indication being a first value indicates that the UE is triggered to perform the GNSS measurement, and wherein the predefined interval corresponds to a number of subframes. ### Claim 20 (depends on 4) The base station of claim 4, wherein the processor is further configured to receive, from the UE, a preferred length of the GNSS measurement window for the UE, and wherein a downlink signal of the base station is not expected to be transmitted within the GNSS measurement window.