# US 2021/0243554 A1 · Techniques for distance based sidelink transmission > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2021/0243554 A1 - Document ID: US20210243554A1 - Status: Published application - Kind: A1 - Application number: 17/151,026 - Filed: 2021-01-15 - Published: 2021-08-05 - Earliest claimed: 2020-01-30 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Shuanshuan WU; Sudhir Kumar BAGHEL; Shailesh PATIL; Gabi SARKIS; Kapil GULATI - Web page: https://patentgrep.com/patent/US20210243554A1 ## CPC - H04W 4/023: {using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds} - H04W 76/14: Direct-mode setup - H04B 17/327: Received signal code power [RSCP] - H04W 4/40: for vehicles, e.g. vehicle-to-pedestrians [V2P] - H04W 52/383: {power control in peer-to-peer links} - H04W 72/20: Control channels or signalling for resource management - H04W 72/51: based on terminal or device properties - H04W 72/569: {of the traffic information} - H04W 64/003: {locating network equipment} - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) - H04B: TRANSMISSION ## Abstract A method of triggering a distance-based feedback transmission in a vehicle communication system includes determining an availability of the location information of a first electronic device, and transmitting sidelink control information that indicates the availability of the location information of the first electronic device. The sidelink control information includes a communication range indication or another parameter indicating the availability of the location information of the first electronic device. A receiving device receives the sidelink control information from the first electronic device, determines based on the sidelink control information that the location information of the first electronic device is unavailable, and transmits a distance-based feedback message to the first electronic device based at least in part on the sidelink control information. ## Claims ### Claim 1 A method of triggering a distance-based feedback transmission in a vehicle communication system, the method comprising: determining an availability of location information of a first electronic device; and transmitting sidelink control information that indicates the availability of the location information of the first electronic device. ### Claim 2 (depends on 1) The method of claim 1, wherein the sidelink control information includes a communication range indication that indicates the availability of the location information of the first electronic device. ### Claim 3 (depends on 2) The method of claim 2, further comprising setting the communication range indication to a predetermined value based on determining that the location information of the first electronic device is unavailable. ### Claim 4 (depends on 3) The method of claim 3, wherein the predetermined value indicates a predetermined communication range that is lower than a first threshold value or greater than a second threshold value. ### Claim 5 (depends on 3) The method of claim 3, wherein the predetermined value is a reserved value indicating that the location information of the first electronic device is unavailable. ### Claim 6 (depends on 1) The method of claim 1, wherein the sidelink control information includes one or more parameters indicating the availability of the location information of the first electronic device. ### Claim 7 (depends on 6) The method of claim 6, wherein the one or more parameters include a parameter dedicated to indicating whether the location information of the first electronic device is available. ### Claim 8 (depends on 6) The method of claim 6, wherein the one or more parameters include a parameter that indicates whether the location information of the first electronic device is available and whether the distance-based feedback transmission is enabled. ### Claim 9 (depends on 1) The method of claim 1, wherein the sidelink control information includes: a communication range indication that indicates a communication range greater than a threshold range value; and a randomly selected zone identification (ID) or a predetermined zone ID for indicating an unavailability of the location information of the first electronic device. ### Claim 10 (depends on 1) The method of claim 1, wherein the sidelink control information includes at least one of: a parameter indicating a priority of a sidelink data channel associated with the sidelink control information; or a parameter indicating whether the distance-based feedback transmission is requested. ### Claim 11 A method comprising: receiving, from a first device, sidelink control information by a second device; determining, based on the sidelink control information, that location information of the first device is unavailable; and transmitting, to the first device, a distance-based feedback message based at least in part on the sidelink control information. ### Claim 12 (depends on 11) The method of claim 11, wherein the sidelink control information indicates that the distance-based feedback message is requested regardless of a distance between the first device and the second device. ### Claim 13 (depends on 11) The method of claim 11, further comprising: measuring a refence signal received power (RSRP) value of a reference signal from the first device; and transmitting the distance-based feedback message in response to at least one of: the RSRP value exceeding an RSRP threshold value; or the sidelink control information indicating that the distance-based feedback message is requested. ### Claim 14 (depends on 11) The method of claim 11, further comprising: determining, from the sidelink control information, a priority value of a sidelink data channel associated with the sidelink control information; and transmitting the distance-based feedback message in response to at least one of: the priority value exceeding a priority threshold value; or the sidelink control information indicating that the distance-based feedback message is requested. ### Claim 15 (depends on 11) The method of claim 11, further comprising: determining, based on a communication range indication in the sidelink control information, a communication range of the first device; and transmitting the distance-based feedback message in response to at least one of: the communication range exceeding a range threshold value; or the sidelink control information indicating that the distance-based feedback message is requested. ### Claim 16 (depends on 11) The method of claim 11, wherein determining, based on the sidelink control information, that the location information of the first device is unavailable comprises identifying, in the sidelink control information, at least one of: a communication range indication including a predetermined value indicating that the location information of the first device is unavailable; a dedicated parameter indicating that the location information of the first device is unavailable; a parameter indicating that the location information of the first device is unavailable and that the distance-based feedback message is requested; or a zone identification (ID) including a predetermined zone ID value indicating that the location information of the first device is unavailable. ### Claim 17 A vehicle-to-everything (V2X) device comprising: a transceiver; a memory; and one or more processing units communicatively coupled with the transceiver and the memory and configured to: determine an availability of location information of the V2X device; and transmit, via the transceiver, sidelink control information that indicates the availability of the location information of the V2X device. ### Claim 18 (depends on 17) The V2X device of claim 17, wherein the one or more processing units are configured to, based on determining that the location information of the V2X device is unavailable, set a communication range indication in the sidelink control information to a predetermined value. ### Claim 19 (depends on 18) The V2X device of claim 18, wherein: the predetermined value indicates a predetermined communication range that is lower than a first threshold value or greater than a second threshold value, the first threshold value lower than the second threshold value; or the predetermined value is a reserved value indicating that the location information of the V2X device is unavailable. ### Claim 20 (depends on 17) The V2X device of claim 17, wherein the sidelink control information includes one or more parameters indicating the availability of the location information of the V2X device. ### Claim 21 (depends on 20) The V2X device of claim 20, wherein the one or more parameters include a parameter dedicated to indicating whether the location information of the V2X device is available. ### Claim 22 (depends on 20) The V2X device of claim 20, wherein the one or more parameters include a parameter that indicates whether the location information of the V2X device is available and whether a distance-based feedback transmission is enabled. ### Claim 23 (depends on 17) The V2X device of claim 17, wherein the sidelink control information includes: a communication range indication that indicates a communication range greater than a threshold range value; and a randomly selected zone identification (ID) or a predetermined zone ID for indicating an unavailability of the location information of the V2X device. ### Claim 24 (depends on 17) The V2X device of claim 17, wherein the sidelink control information includes at least one of: a parameter indicating a priority of a sidelink data channel associated with the sidelink control information; or a parameter indicating whether a distance-based feedback transmission is requested. ### Claim 25 A vehicle-to-everything (V2X) device comprising: a transceiver; a memory; and one or more processing units communicatively coupled with the transceiver and the memory and configured to: receive, via the transceiver, sidelink control information from a first electronic device; determine, based on the sidelink control information, that location information of the first electronic device is unavailable; and transmit, to the first electronic device via the transceiver, a distance-based feedback message based at least in part on the sidelink control information. ### Claim 26 (depends on 25) The V2X device of claim 25, wherein the sidelink control information indicates that the distance-based feedback message is requested regardless of a distance between the first electronic device and the V2X device. ### Claim 27 (depends on 25) The V2X device of claim 25, wherein the one or more processing units are configured to: measure, via the transceiver, a refence signal received power (RSRP) value of a reference signal from the first electronic device; and transmit, via the transceiver, the distance-based feedback message in response to at least one of: the RSRP value exceeding an RSRP threshold value; or the sidelink control information indicating that the distance-based feedback message is requested. ### Claim 28 (depends on 25) The V2X device of claim 25, wherein the one or more processing units are configured to: determine, from the sidelink control information, a priority value of a sidelink data channel associated with the sidelink control information; and transmit, via the transceiver, the distance-based feedback message in response to at least one of: the priority value exceeding a priority threshold value; or the sidelink control information indicating that the distance-based feedback message is requested. ### Claim 29 (depends on 25) The V2X device of claim 25, wherein the one or more processing units are configured to: determine, based on a communication range indication in the sidelink control information, a communication range of the first electronic device; and transmit, via the transceiver, the distance-based feedback message in response to at least one of: the communication range exceeding a range threshold value; or the sidelink control information indicating that the distance-based feedback message is requested. ### Claim 30 (depends on 25) The V2X device of claim 25, wherein determining, based on the sidelink control information, that the location information of the first electronic device is unavailable comprises identifying, in the sidelink control information, at least one of: a communication range indication including a predetermined value indicating that the location information of the first electronic device is unavailable; a dedicated parameter indicating that the location information of the first electronic device is unavailable; a parameter indicating that the location information of the first electronic device is unavailable and that the distance-based feedback message is requested; or a zone identification (ID) including a predetermined zone ID value indicating that the location information of the first electronic device is unavailable.