# US 12,010,761 B2 · Techniques to facilitate V2X identifier-based transport types of a geographical network layer protocol > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,010,761 B2 - Document ID: US12010761B2 - Status: Granted - Kind: B2 - Application number: 17/359,106 - Filed: 2021-06-25 - Published: 2022-12-29 - Granted: 2024-06-11 - Earliest claimed: 2021-06-25 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Seung Ryul Yang; Vincent Douglas Park - Web page: https://patentgrep.com/patent/US12010761B2 ## CPC - H04L 45/16: Multipoint routing - H04W 80/04: Network layer protocols, e.g. mobile IP [Internet Protocol] - H04L 47/15: {in relation to multipoint traffic (arrangements for broadcast or multicast in data networks H04L12/18)} - H04W 4/025: {using location based information parameters} - H04W 4/06: Selective distribution of broadcast services, e.g. multimedia broadcast multicast service [MBMS]; Services to user groups; One-way selective calling services - H04W 8/26: Network addressing or numbering for mobility support - H04W 40/20: based on geographic position or location - H04W 40/22: using selective relaying for reaching a BTS [Base Transceiver Station] or an access point - H04W 40/244: {using a network of reference devices, e.g. beaconing} - H04L: TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION (arrangements common to telegraphic and telephonic communication H04M) - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract Apparatus, methods, and computer-readable media for facilitating identifier-based transport types of a GNLP are disclosed herein. An example method for wireless communication at a transmitting UE includes receiving a message based on a GNLP, the message including a GNLP header. The example method also includes populating the GNLP header to indicate that the message is associated with a single-hop transport type, the single-hop transport type including a unicast message, a groupcast message, or a broadcast message. The example method also includes transmitting the message via sidelink to a receiving UE. An example method for wireless communication at a receiving UE includes receiving, from a transmitting UE, a message via sidelink, the message based on a GNLP and including a GNLP header. The example method also includes using the GNLP header to determine that the message is associated with a single-hop transport type. ## Claims ### Claim 1 An apparatus for wireless communication at a transmitting user equipment (UE), comprising: memory; and at least one processor coupled to the memory, the at least one processor configured to: receive a message based on a geographical network layer protocol (GNLP), the message including a GNLP header; populate the GNLP header to indicate that the message is associated with a transport type including a unicast message or a groupcast message, wherein to populate the GNLP header, the at least one processor is configured to: encode a header type field of the GNLP header with a first value associated with one of a topologically scoped unicast message or a topologically scoped groupcast message; and transmit the message via sidelink to a receiving UE. ### Claim 2 (depends on 1) The apparatus of claim 1, wherein the message corresponds to the unicast message, and the at least one processor is configured to encode the header type field of the GNLP header with the first value associated with the topologically scoped unicast message, and is further configured to: encode a header sub-type field of the GNLP header with a second value based on a hop count associated with the unicast message. ### Claim 3 (depends on 1) The apparatus of claim 1, wherein the message corresponds to the groupcast message, and the at least one processor is configured to encode the header type field of the GNLP header with the first value associated with the topologically scoped groupcast message, and is further configured to: encode a header sub-type field of the GNLP header with a second value based on a hop count associated with the groupcast message. ### Claim 4 (depends on 1) The apparatus of claim 1, wherein the message corresponds to a single-hop transmission message. ### Claim 5 (depends on 1) The apparatus of claim 1, wherein the GNLP header includes source position information associated with the transmitting UE, and the GNLP header excludes destination position information associated with the receiving UE. ### Claim 6 (depends on 1) The apparatus of claim 1, wherein the GNLP header includes a network address associated with the transmitting UE, and the GNLP header excludes geographical information associated with the transmitting UE. ### Claim 7 (depends on 1) The apparatus of claim 1, further comprising a transceiver coupled to the at least one processor. ### Claim 8 (depends on 1) The apparatus of claim 1, wherein the at least one processor is, individually or in combination, configured to receive the message based on the GNLP, populate the GNLP header to indicate that the message is associated with the transport type, and transmit the message via the sidelink to the receiving UE. ### Claim 9 An apparatus for wireless communication at a transmitting user equipment (UE), comprising: memory; and at least one processor coupled to the memory, the at least one processor configured to: receive a message based on a geographical network layer protocol (GNLP), the message including a GNLP header; populate the GNLP header to indicate that the message is associated with a single-hop transport type, the single-hop transport type including a unicast message, a groupcast message, or a broadcast message, wherein to populate the GNLP header, the at least one processor is configured to: encode a header type field of the GNLP header with a first value associated with the message; and encode a header sub-type field of the GNLP header with a second value based on a cast-type associated with a single-hop transmission message; and transmit the message via sidelink to a receiving UE. ### Claim 10 (depends on 9) The apparatus of claim 9, wherein the message corresponds to the broadcast message. ### Claim 11 (depends on 9) The apparatus of claim 9, wherein the GNLP header includes source position information associated with the transmitting UE, and the GNLP header excludes destination position information associated with the receiving UE. ### Claim 12 (depends on 9) The apparatus of claim 9, wherein the GNLP header includes a network address associated with the transmitting UE, and the GNLP header excludes geographical information associated with the transmitting UE. ### Claim 13 A method of wireless communication at a transmitting user equipment (UE), comprising: receiving a message based on a geographical network layer protocol (GNLP), the message including a GNLP header; populating the GNLP header to indicate that the message is associated with a transport type including a unicast message or a groupcast message, wherein populating the GNLP header includes: setting a header type field of the GNLP header to a first value associated with one of a topologically scoped unicast message or a topologically scoped groupcast message; and transmitting the message via sidelink to a receiving UE. ### Claim 14 (depends on 13) The method of claim 13, wherein the message corresponds to the unicast message, and the method includes encoding the header type field of the GNLP header with the first value associated with the topologically scoped unicast message and encoding a header sub-type field of the GNLP header with a second value based on a hop count associated with the unicast message. ### Claim 15 (depends on 13) The method of claim 13, wherein the message corresponds to the groupcast message, and the method includes encoding the header type field of the GNLP header with the first value associated with the topologically scoped groupcast message and encoding a header sub-type field of the GNLP header with a second value based on a hop count associated with the groupcast message. ### Claim 16 (depends on 13) The method of claim 13, wherein the message corresponds to a single-hop transmission message. ### Claim 17 (depends on 13) The method of claim 13, wherein the GNLP header includes source position information associated with the transmitting UE, and the GNLP header excludes destination position information associated with the receiving UE. ### Claim 18 (depends on 13) The method of claim 13, wherein the GNLP header includes a network address associated with the transmitting UE, and the GNLP header excludes geographical information associated with the transmitting UE. ### Claim 19 A method of wireless communication at a transmitting user equipment (UE), comprising: receiving a message based on a geographical network layer protocol (GNLP), the message including a GNLP header; populating the GNLP header to indicate that the message is associated with a single-hop transport type, the single-hop transport type including a unicast message, a groupcast message, or a broadcast message, wherein populating the GNLP header includes: setting a header type field of the GNLP header to a first value associated with the message; and setting a header sub-type field of the GNLP header to a second value based on a cast-type associated with a single-hop transmission message; and transmitting the message via sidelink to a receiving UE. ### Claim 20 An apparatus for wireless communication at a receiving user equipment (UE), comprising: memory; and at least one processor coupled to the memory, the at least one processor configured to: receive, from a transmitting UE, a message via sidelink, the message based on a geographical network layer protocol (GNLP) and including a GNLP header, the GNLP header including a header type field including a first value associated with one of a topologically scoped unicast message or a topologically scoped groupcast message; and use the GNLP header to determine that the message is associated with a transport type including a unicast message or a groupcast message. ### Claim 21 (depends on 20) The apparatus of claim 20, wherein the message corresponds to the unicast message, wherein the first value is associated with the topologically scoped unicast message, and wherein a header sub-type field of the GNLP header with a second value is based on a hop count associated with the unicast message. ### Claim 22 (depends on 20) The apparatus of claim 20, wherein the message corresponds to the groupcast message, wherein the first value is associated with the topologically scoped groupcast message, and wherein a header sub-type field of the GNLP header with a second value is based on a hop count associated with the groupcast message. ### Claim 23 (depends on 20) The apparatus of claim 20, wherein the GNLP header includes source position information associated with the transmitting UE, and the GNLP header excludes destination position information associated with the receiving UE. ### Claim 24 (depends on 20) The apparatus of claim 20, wherein the GNLP header includes a network address associated with the transmitting UE, and the GNLP header excludes geographical information associated with the transmitting UE. ### Claim 25 (depends on 20) The apparatus of claim 20, further comprising a transceiver coupled to the at least one processor. ### Claim 26 (depends on 20) The apparatus of claim 20, wherein the at least one processor is, individually or in combination, configured to receive the message via the sidelink, and use the GNLP header to determine that the message is associated with the transport type. ### Claim 27 A method of wireless communication at a receiving user equipment (UE), comprising: receiving, from a transmitting UE, a message via sidelink, the message based on a geographical network layer protocol (GNLP) and including a GNLP header, the GNLP header including a header type field including a first value associated with one of a topologically scoped unicast message or a topologically scoped groupcast message; and using the GNLP header to determine that the message is associated with a transport type including a unicast message or a groupcast message. ### Claim 28 (depends on 27) The method of claim 27, wherein the message corresponds to the unicast message, wherein the first value is associated with the topologically scoped unicast message, and wherein a header sub-type field of the GNLP header with a second value is based on a hop count associated with the unicast message. ### Claim 29 (depends on 27) The method of claim 27, wherein the message corresponds to the groupcast message, wherein the first value is associated with the topologically scoped groupcast message, and wherein a header sub-type field of the GNLP header with a second value is based on a hop count associated with the unicast message. ### Claim 30 (depends on 27) The method of claim 27, wherein the GNLP header includes source position information associated with the transmitting UE, and the GNLP header excludes destination position information associated with the receiving UE. ### Claim 31 (depends on 27) The method of claim 27, wherein the GNLP header includes a network address associated with the transmitting UE, and the GNLP header excludes geographical information associated with the transmitting UE. ### Claim 32 An apparatus for wireless communication at a receiving user equipment (UE), comprising: memory; and at least one processor coupled to the memory, the at least one processor configured to: receive, from a transmitting UE, a message via sidelink, the message based on a geographical network layer protocol (GNLP) and including a GNLP header, the GNLP header including a header type field including a first value associated with a single-hop transmission message and a header sub-type field of the GNLP header with a second value based on a cast-type associated with the single-hop transmission message; and use the GNLP header to determine that the message is associated with a single-hop transport type, the single-hop transport type including a unicast message, a groupcast message, or a broadcast message. ### Claim 33 (depends on 32) The apparatus of claim 32, wherein the message corresponds to the broadcast message. ### Claim 34 A method of wireless communication at a receiving user equipment (UE), comprising: receiving, from a transmitting UE, a message via sidelink, the message based on a geographical network layer protocol (GNLP) and including a GNLP header, the GNLP header including a header type field including a first value associated with a single-hop transmission message and a header sub-type field of the GNLP header with a second value based on a cast-type associated with the single-hop transmission message; and use the GNLP header to determine that the message is associated with a single-hop transport type, the single-hop transport type including a unicast message, a groupcast message, or a broadcast message.