IP Library › Granted Patent US 12707442

Granted Patent B2

US 12707442 · App. 18/148,671 · Granted Aug 11, 2026

PPDU communication method and related apparatus

Inventors: Jian Yu (Shenzhen, CN); Mengshi Hu (Shenzhen, CN); Ming Gan (Shenzhen, CN)

Assignee: Huawei Technologies Co., Ltd.

H04W72/0453 H04L1/1642 H04W72/0446 H04B7/0626 H04W84/12

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Quick Facts

Patent No.: US 12707442
App. No.: 18/148,671
Granted: Aug 11, 2026
Kind: B2

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Abstract

This application discloses communication methods and apparatuses. In an example method, a physical layer protocol data unit (PPDU) is generated and sent. The PPDU includes multiple resource unit allocation subfields. The multiple resource unit allocation subfields include a resource unit allocation subfield corresponding to a multiple resource unit (MRU) to indicate that a 242-tone resource unit (RU) corresponding to the resource unit allocation subfield belongs to the MRU. A number of resource unit allocation subfields corresponding to the MRU in a resource unit allocation subfield corresponding to each 80 MHz subblock in a bandwidth for transmitting the PPDU is for determining or indicating a type of the MRU. A station can determine, based on the number of resource unit allocation subfields corresponding to the MRU in the resource unit allocation subfield corresponding to each 80 MHz subblock, which type of MRU is included in the bandwidth for transmitting the PPDU.

Claims (55)

1 . A method in a wireless local area network, comprising:

generating a physical layer protocol data unit (PPDU), wherein the PPDU comprises a signal field; and

sending the PPDU; wherein:

the signal field comprises a common field, and the common field comprises a plurality of resource unit allocation subfields;

each of the plurality of resource unit allocation subfields corresponds to one 242-tone resource unit (RU) in a frequency domain resource;

the resource unit allocation subfield of the plurality of resource unit allocation subfields comprises an index, and wherein the index indicates information of a multiple resource unit (MRU) in which the 242-tone RU corresponding to the resource unit allocation subfield is located, and indicates a quantity of user fields corresponding to the resource unit allocation subfield in a content channel in which the resource unit allocation subfield is located; and

the MRU is formed by two or more RUs whose sizes are greater than or equal to 242 tones, and is one of the following MRUs:

an MRU formed by a 484-tone RU and a 242-tone RU;

an MRU formed by a 484-tone RU and a 996-tone RU;

an MRU formed by a 484-tone RU and a 2*996-tone RU;

an MRU formed by a 484-tone RU and a 3*996-tone RU; or

an MRU formed by three 996-tone RUs, and

wherein the information of the MRU comprises a RU number of a corresponding 242-tone RU, 484-tone RU, or 996-tone RU forming the MRU, and the RU number indicates a frequency location of the corresponding 242-tone RU, 484-tone RU, or 996-tone RU, and multiple 242-tone RUs have respective RU numbers, and the respective RU numbers of the multiple 242-tone RUs are sequentially numbered in an ascending order of absolute frequencies.

2 . The method according to claim 1 , wherein:

the information of the MRU comprises a frequency location of a RU forming the MRU.

3 . The method according to claim 1 , wherein the MRU is an MRU formed by a 484-tone RU and a 996-tone RU in a 160 MHz channel in the wireless local area network, and the resource unit allocation subfield specifically indicates RU sequence numbers of the 484-tone RU and the 996-tone RU that form the MRU in the 160 MHz channel in which the MRU is located.

4 . The method according to claim 1 , wherein the MRU is an MRU formed by a 242-tone RU and a 484-tone RU in an 80 MHz channel in the wireless local area network, and the resource unit allocation subfield specifically indicates RU sequence numbers of the 242-tone RU and the 484-tone RU that form the MRU in the 80 MHz channel in which the MRU is located.

5 . The method according to claim 1 , wherein the MRU is an MRU formed by two 996-tone RUs and a 484-tone RU in a 240 MHz channel in the wireless local area network, and the resource unit allocation subfield specifically indicates RU sequence numbers of the 484-tone RU and the 996-tone RUs that form the MRU in the 240 MHz channel in which the MRU is located.

6 . An apparatus, comprising:

at least one processor; a transceiver; and at least one memory coupled to the at least one processor and storing programming instructions for execution by the at least one processor and causing the apparatus to perform operations comprising:

generating a physical layer protocol data unit (PPDU), wherein the PPDU comprises a signal field; and

sending the PPDU, wherein:

the signal field comprises a common field, and the common field comprises a plurality of resource unit allocation subfields;

each of the plurality of resource unit allocation subfields corresponds to one 242-tone resource unit (RU) in a frequency domain resource;

the MRU is formed by two or more RUs whose sizes are greater than or equal to 242 tones, and is one of the following MRUs:

an MRU formed by a 484-tone RU and a 242-tone RU;

an MRU formed by a 484-tone RU and a 996-tone RU;

an MRU formed by a 484-tone RU and a 2*996-tone RU;

an MRU formed by a 484-tone RU and a 3*996-tone RU; or

an MRU formed by three 996-tone RUs, and

7 . The apparatus according to claim 6 , wherein:

the information of the MRU comprises a frequency location of a RU forming the MRU.

8 . The apparatus according to claim 6 , wherein the MRU is an MRU formed by a 484-tone RU and a 996-tone RU in a 160 MHz channel, and the resource unit allocation subfield specifically indicates RU sequence numbers of the 484-tone RU and the 996-tone RU that form the MRU in the 160 MHz channel in which the MRU is located.

9 . The apparatus according to claim 6 , wherein the MRU is an MRU formed by a 242-tone RU and a 484-tone RU in an 80 MHz channel, and the resource unit allocation subfield specifically indicates RU sequence numbers of the 242-tone RU and the 484-tone RU that form the MRU in the 80 MHz channel in which the MRU is located.

10 . The apparatus according to claim 6 , wherein the MRU is an MRU formed by two 996-tone RUs and a 484-tone RU in a 240 MHz channel, and the resource unit allocation subfield specifically indicates RU sequence numbers of the 484-tone RU and the 996-tone RUs that form the MRU in the 240 MHz channel in which the MRU is located.

11 . A non-transitory computer-readable storage medium, wherein the non-transitory computer-readable storage medium stores computer instructions, and the computer instructions indicate a communication apparatus to perform operations comprising:

generating a physical layer protocol data unit (PPDU), wherein the PPDU comprises a signal field; and

sending the PPDU; wherein:

the signal field comprises a common field, and the common field comprises a plurality of resource unit allocation subfields;

each of the plurality of resource unit allocation subfields corresponds to one 242-tone resource unit (RU) in a frequency domain resource;

the MRU is formed by two or more RUs whose sizes are greater than or equal to 242 tones, and is one of the following MRUs:

an MRU formed by a 484-tone RU and a 242-tone RU;

an MRU formed by a 484-tone RU and a 996-tone RU;

an MRU formed by a 484-tone RU and a 2*996-tone RU;

an MRU formed by a 484-tone RU and a 3*996-tone RU; or

an MRU formed by three 996-tone RUs, and

12 . The non-transitory computer-readable storage medium according to claim 11 , wherein:

the information of the MRU comprises a frequency location of a RU forming the MRU.

13 . The non-transitory computer-readable storage medium according to claim 11 , wherein the MRU is an MRU formed by a 484-tone RU and a 996-tone RU in a 160 MHz channel, and the resource unit allocation subfield specifically indicates RU sequence numbers of the 484-tone RU and the 996-tone RU that form the MRU in the 160 MHz channel in which the MRU is located.

14 . The non-transitory computer-readable storage medium according to claim 11 , wherein the MRU is an MRU formed by a 242-tone RU and a 484-tone RU in an 80 MHz channel, and the resource unit allocation subfield specifically indicates RU sequence numbers of the 242-tone RU and the 484-tone RU that form the MRU in the 80 MHz channel in which the MRU is located.

15 . The non-transitory computer-readable storage medium according to claim 11 , wherein the MRU is an MRU formed by two 996-tone RUs and a 484-tone RU in a 240 MHz channel, and the resource unit allocation subfield specifically indicates RU sequence numbers of the 484-tone RU and the 996-tone RUs that form the MRU in the 240 MHz channel in which the MRU is located.