# US 12,604,342 B2 · Intra-band enhanced multilink single-radio communication > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,604,342 B2 - Document ID: US12604342B2 - Status: Granted - Kind: B2 - Application number: 18/328,482 - Filed: 2023-06-02 - Published: 2024-12-05 - Granted: 2026-04-14 - Earliest claimed: 2023-06-02 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Abhijit Bhattacharya; Arul Durai Murugan Palanivelu; Suresh Chandrasekaran; Vinod Belur Ramachandra - Web page: https://patentgrep.com/patent/US12604342B2 ## CPC - H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA] - H04W 74/0816: with collision avoidance - H04W 74/085: {collision avoidance} - H04W 76/15: Setup of multiple wireless link connections - H04W 84/12: WLAN [Wireless Local Area Networks] - H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72) ## Abstract This disclosure provides methods, components, devices and systems for intra-band enhanced multilink single-radio (eMLSR) communication. Some aspects more specifically relate to independently contending, using a single radio, for access on first and second links associated with first and second primary subchannels of a channel. A packet may then be transmitted, using the single radio, over a one of the first link or the second link on which contention is won. ## Claims ### Claim 1 A method for wireless communication by a first wireless communication device, comprising: independently contending concurrently, using a single radio, for access on each of a first link associated with a first primary subchannel of a first channel and a second link associated with a second primary subchannel of the first channel; and transmitting, using the single radio, a first packet to a second wireless communication device over a one of the first link or the second link on which the contention is won. ### Claim 2 (depends on 1) The method of claim 1, wherein independently contending concurrently for access on each of the first link and the second link comprises independently monitoring for a second packet on each of the first primary subchannel and the second primary subchannel. ### Claim 3 (depends on 1) The method of claim 1, wherein independently contending concurrently for access on each of the first link and the second link comprises running a respective independent back-off counter for each of the first link and the second link. ### Claim 4 (depends on 1) The method of claim 1, wherein the single radio includes one or more radio frequency (RF) chains. ### Claim 5 (depends on 1) The method of claim 1, wherein the single radio includes a single physical (PHY) layer associated with both the first link and the second link. ### Claim 6 (depends on 1) The method of claim 1, wherein the single radio includes a first physical (PHY) layer associated with the first link and a different second PHY layer associated with the second link. ### Claim 7 (depends on 1) The method of claim 1, wherein the first wireless communication device includes a first lower media access control (MAC) layer having a first MAC address and a second lower MAC layer having a second MAC address. ### Claim 8 (depends on 7) The method of claim 7, wherein the first lower MAC layer is associated with a first back-off counter and the second lower MAC layer is associated with a different second back-off counter. ### Claim 9 (depends on 1) The method of claim 1, wherein the single radio includes a single synthesizer. ### Claim 10 (depends on 1) The method of claim 1, wherein the first channel is a 320 MHz channel, the first primary subchannel is a first 20 MHz subchannel in a first 160 MHz subchannel of the 320 MHz channel, and the second primary subchannel is a second 20 MHz subchannel in a different second 160 MHz subchannel of the 320 MHz channel. ### Claim 11 (depends on 1) The method of claim 1, further comprising: refraining from decoding one or more additional packets detected on the one of the first primary subchannel or the second primary subchannel associated with the link on which the contention was not won. ### Claim 12 (depends on 1) The method of claim 1, wherein the first wireless communication device is a first access point (AP) multi-link device (MLD) or component within the first AP MLD, the first AP MLD comprising a first AP associated with the first link and a second AP associated with the second link. ### Claim 13 (depends on 12) The method of claim 12, wherein the first AP is configured transmit the first packet only to stations (STAs) configured for intra-band enhanced multilink single-radio (eMLSR) operation and the second AP is configured to transmit the first packet to either or both of STAs that are configured for intra-band eMLSR operation and STAs that are not configured for intra-band eMLSR operation. ### Claim 14 A first wireless communication device, comprising: one or more memories storing processor-executable code; and one or more processors coupled with the one or more memories and individually or collectively configured to, when executing the code, cause the first wireless communication device to: independently contend concurrently, using a single radio, for access on each of a first link associated with a first primary subchannel of a first channel and a second link associated with a second primary subchannel of the first channel; and transmit, using the single radio, a first packet to a second wireless communication device over a one of the first link or the second link on which the contention is won. ### Claim 15 (depends on 14) The first wireless communication device of claim 14, wherein independently contending concurrently for access on each of the first link and the second link comprises independently monitoring for a second packet on each of the first primary subchannel and the second primary subchannel. ### Claim 16 (depends on 14) The first wireless communication device of claim 14, wherein independently contending concurrently for access on each of the first link and the second link comprises running a respective independent back-off counter for each of the first link and the second link. ### Claim 17 (depends on 14) The first wireless communication device of claim 14, wherein the single radio includes one or more radio frequency (RF) chains. ### Claim 18 (depends on 14) The first wireless communication device of claim 14, wherein the single radio includes a single physical (PHY) layer associated with both the first link and the second link. ### Claim 19 (depends on 14) The first wireless communication device of claim 14, wherein the single radio includes a first physical (PHY) layer associated with the first link and a different second PHY layer associated with the second link. ### Claim 20 (depends on 14) The first wireless communication device of claim 14, wherein the first wireless communication device includes a first lower media access control (MAC) layer having a first MAC address and a second lower MAC layer having a second MAC address. ### Claim 21 (depends on 20) The first wireless communication device of claim 20, wherein the first lower MAC layer is associated with a first back-off counter and the second lower MAC layer is associated with a different second back-off counter. ### Claim 22 (depends on 14) The first wireless communication device of claim 14, wherein the single radio includes a single synthesizer. ### Claim 23 (depends on 14) The first wireless communication device of claim 14, wherein the first channel is a 320 MHz channel, the first primary subchannel is a first 20 MHz subchannel in a first 160 MHz subchannel of the 320 MHz channel, and the second primary subchannel is a second 20 MHz subchannel in a different second 160 MHz subchannel of the 320 MHz channel. ### Claim 24 (depends on 14) The first wireless communication device of claim 14, wherein the one or more processors are further individually or collectively operative to: refrain from decoding one or more additional packets detected on the one of the first primary subchannel or the second primary subchannel associated with the link on which the contention was not won. ### Claim 25 (depends on 14) The first wireless communication device of claim 14, wherein the first wireless communication device is a first access point (AP) multi-link device (MLD) or component within the first AP MLD, the first AP MLD comprising a first AP associated with the first link and a second AP associated with the second link. ### Claim 26 (depends on 25) The first wireless communication device of claim 25, wherein the first AP is configured transmit the first packet only to stations (STAs) configured for intra-band enhanced multilink single-radio (eMLSR) operation and the second AP is configured to transmit the first packet to either or both of STAs that are configured for intra-band eMLSR operation and STAs that are not configured for intra-band eMLSR operation. ### Claim 27 A first wireless communication device, comprising: means for independently contending concurrently, using a single radio, for access on each of a first link associated with a first primary subchannel of a first channel and a second link associated with a second primary subchannel of the first channel; and means for transmitting, using the single radio, a first packet to a second wireless communication device over a one of the first link or the second link on which the contention is won. ### Claim 28 (depends on 27) The first wireless communication device of claim 27, wherein independently contending concurrently for access on each of the first link and the second link comprises independently monitoring for a second packet on each of the first primary subchannel and the second primary subchannel. ### Claim 29 (depends on 27) The first wireless communication device of claim 27, wherein independently contending concurrently for access on each of the first link and the second link comprises running a respective independent back-off counter for each of the first link and the second link. ### Claim 30 (depends on 27) The first wireless communication device of claim 27, wherein the single radio includes one or more radio frequency (RF) chains.