# US 12,184,411 B2 · Enhanced bandwidth puncturing > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,184,411 B2 - Document ID: US12184411B2 - Status: Granted - Kind: B2 - Application number: 18/343,430 - Filed: 2023-06-28 - Published: 2023-11-09 - Granted: 2024-12-31 - Earliest claimed: 2020-09-16 - Assignees: QUALCOMM Incorporated - Applicants: QUALCOMM Incorporated - Inventors: Yanjun Sun; Alfred Asterjadhi; George Cherian; Abhishek Pramod Patil; Sai Yiu Duncan Ho - Web page: https://patentgrep.com/patent/US12184411B2 ## CPC - H04L 1/0013: {Rate matching, e.g. puncturing or repetition of code symbols} - H04L 5/001: {the frequencies being arranged in component carriers} - H04L 1/1614: {using bitmaps} - H04L 5/0092: {Indication of how the channel is divided} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04W 74/0816: with collision avoidance - H04L 1/0041: {Arrangements at the transmitter end} - H04L 1/0045: {Arrangements at the receiver end} - H04L 1/08: by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} - H04L 1/1858: {Transmission or retransmission of more than one copy of acknowledgement message} - H04L 5/0023: {Time-frequency-space} - H04W 74/0808: using carrier sensing, e.g. carrier sense multiple access [CSMA] - H04W 84/12: WLAN [Wireless Local Area Networks] - 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 This disclosure provides methods, devices and systems for enhanced bandwidth puncturing. Some implementations more specifically relate to punctured channel indications that support channel puncturing over a range of bandwidths achievable in accordance with the Institute of Electrical and Electronics Engineers (IEEE) 802.11be amendment, and future generations, of the IEEE 802.11 standard. In some implementations, an access point (AP) may communicate static punctured channel information to each associated wireless station (STA) in its BSS. In some other implementations, a transmit opportunity (TXOP) holder may communicate dynamic punctured channel information to a TXOP responder with which it intends to communicate. Still further, in some implementations, the TXOP responder may communicate additional punctured channel information to the TXOP holder responsive to the dynamic punctured channel information. ## Claims ### Claim 1 A 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 configured to, when executing the code, cause the wireless communication device to: transmit or receive a management frame including an information element including first punctured channel information indicating one or more first punctured subchannels associated with a wireless channel; perform, after the transmission or reception of the management frame, a clear channel assessment (CCA) operation on one or more remaining subchannels of the wireless channel excluding the one or more first punctured subchannels; determine that one or more second subchannels of the wireless channel, different than the one or more first punctured subchannels, are associated with interference in accordance with the CCA operation; and transmit, in accordance with the performance of the CCA operation, a packet over a portion of the wireless channel that excludes the one or more first punctured subchannels and excludes the one or more second subchannels, the packet including a field including punctured channel information indicating that one or more subchannels are punctured. ### Claim 2 (depends on 1) The wireless communication device of claim 1, wherein the information element includes: a bit indicating whether the information element omits octets that indicate a bitmap associated with the first punctured channel information; and the octets that indicate the bitmap associated with the first punctured channel information in accordance with the bit indicating that the information element carries the octets, the first punctured channel information indicating the one or more first punctured subchannels associated with the wireless channel. ### Claim 3 (depends on 2) The wireless communication device of claim 2, wherein the bitmap represents a plurality of subchannels associated with the wireless channel, the one or more first punctured subchannels being indicated by one or more bits, respectively, of the bitmap. ### Claim 4 (depends on 3) The wireless communication device of claim 3, wherein the bitmap is a 16 bit bitmap and each bit of the bitmap represents a respective 20 megahertz (MHz) subchannel. ### Claim 5 (depends on 3) The wireless communication device of claim 3, wherein a first bit value of each bit of the one or more bits of the bitmap indicates that a respective 20 MHz subchannel is punctured. ### Claim 6 (depends on 1) The wireless communication device of claim 1, wherein the packet comprises a physical layer convergence protocol (PLCP) protocol data unit (PPDU) and the punctured channel information is carried in a signal field of the PPDU. ### Claim 7 (depends on 6) The wireless communication device of claim 6, wherein the punctured channel information is carried in a universal signal field (U-SIG) of the PPDU. ### Claim 8 (depends on 6) The wireless communication device of claim 6, wherein the PPDU is an Extremely High Throughput (EHT) PPDU. ### Claim 9 (depends on 1) The wireless communication device of claim 1, wherein the management frame is a beacon frame, a probe response frame, or an association response frame. ### Claim 10 (depends on 1) The wireless communication device of claim 1, wherein the packet comprises a non-legacy PPDU, a null data packet announcement (NDPA) frame, a trigger frame, a request-to-send (RTS) frame, a power save polling (PS-POLL) frame, or a block acknowledgement request (BAR) frame. ### Claim 11 A method for wireless communication by a wireless communication device comprising: transmitting or receiving a management frame including an information element including first punctured channel information indicating one or more first punctured subchannels associated with a wireless channel; performing, after the transmission or reception of the management frame, a clear channel assessment (CCA) operation on one or more remaining subchannels of the wireless channel excluding the one or more first punctured subchannels; determine that one or more second subchannels of the wireless channel, different than the one or more first punctured subchannels, are associated with interference in accordance with the CCA operation; and transmitting, in accordance with the performance of the CCA operation, a packet over a portion of the wireless channel that excludes the one or more first punctured subchannels and excludes the one or more second subchannels, the packet including a field including punctured channel information indicating that one or more subchannels are punctured. ### Claim 12 (depends on 11) The method of claim 11, wherein the information element includes: a bit indicating whether the information element omits octets that indicate a bitmap associated with the first punctured channel information; and the octets that indicate the bitmap associated with the first punctured channel information in accordance with the bit indicating that the information element carries the octets, the first punctured channel information indicating the one or more first punctured subchannels associated with the wireless channel. ### Claim 13 (depends on 12) The method of claim 12, wherein the bitmap represents a plurality of subchannels associated with the wireless channel, the one or more first punctured subchannels being indicated by one or more bits, respectively, of the bitmap. ### Claim 14 (depends on 13) The method of claim 13, wherein the bitmap is a 16 bit bitmap and each bit of the bitmap represents a respective 20 megahertz (MHz) subchannel. ### Claim 15 (depends on 13) The method of claim 13, wherein a first bit value of each bit of the one or more bits of the bitmap indicates that a respective 20 MHz subchannel is punctured. ### Claim 16 (depends on 11) The method of claim 11, wherein the packet comprises a physical layer convergence protocol (PLCP) protocol data unit (PPDU) and the punctured channel information is carried in a signal field of the PPDU. ### Claim 17 (depends on 16) The method of claim 16, wherein the punctured channel information is carried in a universal signal field (U-SIG) of the PPDU. ### Claim 18 (depends on 16) The method of claim 16, wherein the PPDU is an Extremely High Throughput (EHT) PPDU. ### Claim 19 (depends on 11) The method of claim 11, wherein the management frame is a beacon frame, a probe response frame, or an association response frame. ### Claim 20 (depends on 11) The method of claim 11, wherein the packet comprises a non-legacy PPDU, a null data packet announcement (NDPA) frame, a trigger frame, a request-to-send (RTS) frame, a power save polling (PS-POLL) frame, or a block acknowledgement request (BAR) frame.