# US 12,603,735 B2 · Communication method and device for indicating resource units, electronic device, and computer-readable storage medium > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,603,735 B2 - Document ID: US12603735B2 - Status: Granted - Kind: B2 - Application number: 18/000,790 - Filed: 2020-06-17 - Published: 2023-07-06 - Granted: 2026-04-14 - Earliest claimed: 2020-06-17 - Assignees: Beijing Xiaomi Mobile Software Co., Ltd. - Applicants: Beijing Xiaomi Mobile Software Co., Ltd. - Inventors: Xiandong Dong - Web page: https://patentgrep.com/patent/US12603735B2 ## CPC - H04L 5/0048: {Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091)} - H04L 5/0094: {Indication of how sub-channels of the path are allocated} - H04L 5/003: {Arrangements for allocating sub-channels of the transmission path} - H04W 72/0453: Resources in frequency domain, e.g. a carrier in FDMA - H04W 72/0457: Variable allocation of band or rate - H04L 5/001: {the frequencies being arranged in component carriers} - H04W 72/23: in the downlink direction of a wireless link, i.e. towards a terminal - 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 A communication method, includes: determining a first message frame, wherein the first message frame at least includes a subfield for indicating bandwidth information and the subfield for indicating bandwidth information is configured to identify configuration information for resource units (RUs) at a first channel bandwidth; and sending the first message frame. ## Claims ### Claim 1 A communication method, comprising: determining a first message frame, wherein the first message frame at least comprises a partial bandwidth information (Partial BW Info) subfield and the Partial BW Info subfield is configured to identify configuration information for resource units (RUs), wherein the first message frame comprises a null data packet (NDP) announcement frame, and a value of the Partial BW Info subfield is associated with a bandwidth of a Physical layer Protocol Data Unit (PPDU) carrying the NDP announcement frame; and sending the first message frame. ### Claim 2 (depends on 1) The method of claim 1, wherein the Partial BW Info subfield at least comprises: a start position identifier for indicating a start position of a bandwidth range of a first channel bandwidth and an end position identifier for indicating an end position of a bandwidth range of the first channel bandwidth. ### Claim 3 (depends on 2) The method of claim 2, wherein the first channel bandwidth corresponds to a first type of bandwidth and the Partial BW Info subfield comprises a start position identifier and an end position identifier for indicating a start position and an end position of RUs within the bandwidth range corresponding to the first type of bandwidth. ### Claim 4 (depends on 2) The method of claim 2, wherein the first channel bandwidth corresponds to a first type of bandwidth and the Partial BW Info subfield comprises at least one of: a start position identifier and an end position identifier for indicating a start position and an end position of low-frequency-band RUs within a bandwidth range corresponding to the first type of bandwidth, or a start position identifier and an end position identifier for indicating a start position and an end position of high-frequency-band RUs within a bandwidth range corresponding to the first type of bandwidth. ### Claim 5 (depends on 2) The method of claim 2, wherein the first channel bandwidth corresponds to a second type of bandwidth, and the Partial BW Info subfield comprises a start position identifier and an end position identifier for indicating a start position and an end position of RUs within a bandwidth range corresponding to the second type of bandwidth. ### Claim 6 (depends on 2) The method of claim 2, wherein the first channel bandwidth corresponds to a second type of bandwidth, and the Partial BW Info subfield comprises at least one of: a start position identifier and an end position identifier for indicting a start position and an end position of low-frequency-band RUs within a bandwidth range corresponding to the second type of bandwidth, or a start position identifier and an end position identifier for indicting a start position and an end position of high-frequency-band RUs within a bandwidth range corresponding to the second type of bandwidth. ### Claim 7 (depends on 2) The method of claim 2, wherein the first channel bandwidth corresponds to a second type of bandwidth, and the Partial BW Info subfield comprises at least one of: a start position identifier and an end position identifier for indicting a start position and an end position of first-frequency-band RUs within a bandwidth range corresponding to the second type of bandwidth, a start position identifier and an end position identifier for indicting a start position and an end position of second-frequency-band RUs within a bandwidth range corresponding to the second type of bandwidth, or a start position identifier and an end position identifier for indicting a start position and an end position of third-frequency-band RUs within a bandwidth range corresponding to the second type of bandwidth. ### Claim 8 (depends on 3) The method of claim 3, wherein the first channel bandwidth corresponds to at least one of the first type of bandwidth or a second type of bandwidth, wherein the first type of bandwidth is 320 MHz or 160 MHz+160 MHz, and the second type of bandwidth is 240 MHz or 160 MHz+80 MHz. ### Claim 9 A communication method, comprising: receiving a first message frame, wherein the first message frame at least comprises a partial bandwidth information (Partial BW Info) subfield and the Partial BW Info subfield is configured to identify configuration information for resource units (RUs), wherein the first message frame comprises a null data packet (NDP) announcement frame, and a value of the Partial BW Info subfield is associated with a bandwidth of a Presentation Physical layer Protocol Data Unit (PPDU) carrying the NDP announcement frame; and determining a RU for sending a second message frame based on the configuration information of the RUs identified by the Partial BW Info subfield. ### Claim 10 (depends on 9) The method of claim 9, wherein the Partial BW Info subfield at least comprises: a start position identifier for indicating a start position of a bandwidth range of a first channel bandwidth and an end position identifier for indicating an end position of a bandwidth range of the first channel bandwidth. ### Claim 11 (depends on 10) The method of claim 10, wherein the first channel bandwidth corresponds to a first type of bandwidth, and the Partial BW Info subfield comprises a start position identifier and an end position identifier for indicating a start position and an end position of RUs within a bandwidth range corresponding to the first type of bandwidth. ### Claim 12 (depends on 10) The method of claim 10, wherein the first channel bandwidth corresponds to a first type of bandwidth, and the Partial BW Info subfield comprises at least one of: a start position identifier and an end position identifier for indicating a start position and an end position of low-frequency-band RUs within a bandwidth range corresponding to the first type of bandwidth, or a start position identifier and an end position identifier for indicating a start position and an end position of high-frequency-band RUs within a bandwidth range corresponding to the first type of bandwidth. ### Claim 13 (depends on 10) The method of claim 10, wherein the first channel bandwidth corresponds to a second type of bandwidth, and the Partial BW Info subfield comprises a start position identifier and an end position identifier for indicating a start position and an end position of RUs within a bandwidth range corresponding to the second type of bandwidth. ### Claim 14 (depends on 10) The method of claim 10, wherein the first channel bandwidth corresponds to a second type of bandwidth, and the Partial BW Info subfield comprises at least one of: a start position identifier and an end position identifier for indicating a start position and an end position of low-frequency-band RUs within a bandwidth range corresponding to the second type of bandwidth, or a start position identifier and an end position identifier for indicating a start position and an end position of high-frequency-band RUs within a bandwidth range corresponding to the second type of bandwidth. ### Claim 15 (depends on 10) The method of claim 10, wherein the first channel bandwidth corresponds to a second type of bandwidth, and the Partial BW Info subfield comprises at least one of: a start position identifier and an end position identifier for indicting a start position and an end position of first-frequency-band RUs within a bandwidth range corresponding to the second type of bandwidth, a start position identifier and an end position identifier for indicting a start position and an end position of second-frequency-band RUs within a bandwidth range corresponding to the second type of bandwidth, or a start position identifier and an end position identifier for indicting a start position and an end position of third-frequency-band RUs within a bandwidth range corresponding to the second type of bandwidth. ### Claim 16 (depends on 11) The method of claim 11, wherein the first channel bandwidth corresponds to at least one of the first type of bandwidth or a second type of bandwidth; and wherein the first type of bandwidth is 320 MHz or 160 MHz+160 MHz, and the second type of bandwidth is 240 MHz or 160 MHz+80 MHz. ### Claim 17 An electronic device, comprising: a processor; and a memory storing a computer program executable by the processor; wherein the processor is configured to: determine a first message frame, wherein the first message frame at least comprises a partial bandwidth information (Partial BW Info) subfield and the Partial BW Info subfield is configured to identify configuration information for resource units (RUs), wherein the first message frame comprises a null data packet (NDP) announcement frame, and a value of the Partial BW Info subfield is associated with a bandwidth of a Physical layer Protocol Data Unit (PPDU) carrying the NDP announcement frame; and send the first message frame. ### Claim 18 (depends on 1) A non-transitory computer-readable storage medium, having a computer program stored thereon, wherein when the computer program is executed by a processor, the processor is caused to perform the method of claim 1. ### Claim 19 (depends on 9) An electronic device, comprising: a processor; and a memory storing a computer program executable by the processor; wherein the processor is configured to perform the method claim 9. ### Claim 20 (depends on 9) A non-transitory computer-readable storage medium, having a computer program stored thereon, wherein when the computer program is executed by a processor, the processor is caused to perform the method of claim 9.