IP Library › Granted Patent US 12,426,026

Granted Patent B2

US 12,426,026 · App. 18/178,168 · Granted Sep 23, 2025

Resource unit indication method, access point, and station

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

Assignee: Huawei Technologies Co., Ltd.

H04W72/0453 H04W84/12

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Quick Facts

Patent No.: US 12,426,026
App. No.: 18/178,168
Granted: Sep 23, 2025
Kind: B2

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Abstract

This application describes resource unit indication methods, access points, and a stations. In an example method, a resource unit allocation subfield in a trigger frame includes a frequency band range indication and a resource unit indication. The resource unit indication is used to indicate a multiple resource unit (MRU) allocated to a station. The frequency band range indication is used to indicate a frequency band range in which a resource unit (RU) in the MRU is located. For example, the frequency band range indication is used to indicate 80 MHz in which a smallest RU in the MRU is located. The described techniques can be applied to, for example, 802.11ax, 802.11be, and future Wi-Fi systems.

Claims (85)

1. A resource unit indication method, wherein the method comprises:

receiving, by a station, a trigger frame from an access point, wherein the trigger frame comprises a resource unit allocation subfield that indicates a resource allocated to the station, the resource unit allocation subfield comprises a resource unit indication of 7 bits and a primary/secondary indication of 2 bits, the 2 bits indicate a location of a 80 MHz, and the 7 bits indicate a location of a resource unit (RU)/multiple resource unit (MRU) in the 80 MHZ, wherein

the primary/secondary indication of the 2 bits indicates one of the following situations: 00 indicates primary 80 MHz (P80 MHz), 01 indicates secondary 80 MHz (S80 MHz), 10 indicates lower 80 MHz in secondary 160 MHz (S160 MHz), and 11 indicates higher 80 MHz in the secondary 160 MHz (S160 MHz);

determining, by the station, an absolute frequency corresponding to the primary/secondary indication of the 2 bits; and

determining, by the station based on the absolute frequency and a value of the 7 bits, the RU/MRU allocated to the station.

2. The method according to claim 1 , wherein an absolute frequency indication corresponding to the absolute frequency comprises 2 bits represented by (X1X0), and a correspondence of the primary/secondary indication and the absolute frequency indication is one of the following:

case a: the primary 80 MHz is in lowest 80 MHz at the absolute frequency;

wherein the primary/secondary indication 00 corresponds to the absolute frequency indication 00, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 01, the primary/secondary indication 01 indicates the secondary 80 MHz, and the absolute frequency indication 01 indicates second lowest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 10, the primary/secondary indication 10 indicates 3rd 80 MHZ, and the absolute frequency indication 10 indicates second highest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 11, the primary/secondary indication 11 indicates 4th 80 MHZ, and the absolute frequency indication 11 indicates highest 80 MHz; or

case b: the primary 80 MHz is in the second lowest 80 MHz at the absolute frequency; wherein the primary/secondary indication 00 corresponds to the absolute frequency indication 01, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 01 indicates the second lowest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 00, the primary/secondary indication 01 indicates the secondary 80 MHZ, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 10, the primary/secondary indication 10 indicates the 3rd 80 MHz, and the absolute frequency indication 10 indicates the second highest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 11, the primary/secondary indication 11 indicates the 4th 80 MHz, and the absolute frequency indication 11 indicates the highest 80 MHz; or

case c: the primary 80 MHz is in the second highest 80 MHz at the absolute frequency; the primary/secondary indication 00 corresponds to the absolute frequency indication 10, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 10 indicates the second highest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 11, the primary/secondary indication 01 indicates the secondary 80 MHZ, and the absolute frequency indication 11 indicates the highest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 00, the primary/secondary indication 10 indicates the 3rd 80 MHZ, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 01, the primary/secondary indication 11 indicates the 4th 80 MHz, and the absolute frequency indication 01 indicates the second lowest 80 MHz; or

case d: the primary 80 MHz is in the highest 80 MHz at the absolute frequency, the primary/secondary indication 00 corresponds to the absolute frequency indication 11, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 11 indicates the highest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 10, the primary/secondary indication 01 indicates the secondary 80 MHZ, and the absolute frequency indication 10 indicates the second highest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 00, the primary/secondary indication 10 indicates the 3rd 80 MHZ, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 01, the primary/secondary indication 11 indicates the 4th 80 MHZ, and the absolute frequency indication 01 indicates the second lowest 80 MHz.

3. The method according to claim 1 , wherein:

the primary/secondary indication of the 2 bits corresponds to the absolute frequency, and the absolute frequency is indicated by N, and N is one of the following values: 0, 1, 2, or 3, wherein 0, 1, 2, and 3 respectively represent lowest 80 MHz, second lowest 80 MHZ, second highest 80 MHZ, and highest 80 MHz.

4. The method according to claim 3 , wherein a correspondence of the primary/secondary indication and the N is one of the following:

case a: the primary 80 MHz is in lowest 80 MHz at the absolute frequency; when the primary/secondary indication of 2 bits are 00, N is equal to 0; when the primary/secondary indication of 2 bits are 01, N is equal to 1; when the primary/secondary indication of 2 bits are 10, N is equal to 2; and when the primary/secondary indication of 2 bits are 11, N is equal to 3;

case b: the primary 80 MHz is in second lowest 80 MHz at the absolute frequency; when the primary/secondary indication of 2 bits are 01, N is equal to 0; when the primary/secondary indication of 2 bits are 00, N is equal to 1; when the primary/secondary indication of 2 bits are 10, N is equal to 2; and when the primary/secondary indication of 2 bits are 11, N is equal to 3;

case c: the primary 80 MHz is in second highest 80 MHz at the absolute frequency; when the primary/secondary indication of 2 bits are 00, N is equal to 2; when the primary/secondary indication of 2 bits are 01, N is equal to 3; when the primary/secondary indication of 2 bits are 10, N is equal to 0; and when the primary/secondary indication of 2 bits are 11, N is equal to 1; and

case d: the primary 80 MHz is in highest 80 MHz at the absolute frequency, when the primary/secondary indication of 2 bits are 00, N is equal to 3; when the primary/secondary indication of 2 bits are 01, N is equal to 2; when the primary/secondary indication of 2 bits are 10, N is equal to 0; and when the primary/secondary indication of 2 bits are 11, N is equal to 1.

5. The method according to claim 3 , wherein the primary/secondary indication comprises a first bit and a bit B0; and wherein a correspondence of the primary/secondary indication and the N is one of the following:

case b: the primary 80 MHz is in second lowest 80 MHz at the absolute frequency; when the first bit is equal to 0, it indicates that the RU/MRU belongs to the primary 160 MHz, and in the primary 160 MHz, N is equal to 1 when B0 is equal to 0, and is equal to 0 when B0 is equal to 1; and when the first bit is equal to 1, it indicates that the RU/MRU belongs to the secondary 160 MHz, and in the secondary 160 MHz, N is equal to 2 when B0 is equal to 0, and is equal to 3 when B0 is equal to 1;

case c: the primary 80 MHz is in second highest 80 MHz at the absolute frequency; when the first bit is equal to 0, it indicates that the RU/MRU belongs to the primary 160 MHz, and in the primary 160 MHz, N is equal to 2 when B0 is equal to 0, and is equal to 3 when B0 is equal to 1; and when the first bit is equal to 1, it indicates that the RU/MRU belongs to the secondary 160 MHz, and in the secondary 160 MHz, N is equal to 0 when B0 is equal to 0, and is equal to 1 when B0 is equal to 1; and

and when the first bit is equal to 1, it indicates that the RU/MRU belongs to the secondary 160 MHz, and in the secondary 160 MHz, N is equal to 0 when B0 is equal to 0, and is equal to 1 when B0 is equal to 1.

6. The method according to claim 3 , an absolute frequency indication corresponding to the absolute frequency comprises 2 bits and the 2 bits of the absolute frequency indication are represented by X1 and X0, wherein N=2*X1+X0.

7. The method according to claim 1 , wherein;

indexes of RUs of a same size in ascending order correspond to start frequencies of the RUs in ascending order, or

indexes of MRUs of a same size in ascending order correspond to start frequencies of the MRUs in ascending order.

8. The method according to claim 1 , wherein:

indexes of RUs of a same size in ascending order correspond to start frequencies of punctured RUs in the RUs in ascending order, or

indexes of RUs of a same size in ascending order correspond to start frequencies of punctured RUs in the RUs in ascending order.

9. A communication apparatus, comprising:

at least one processor and at least one memory, wherein the at least one memory is configured to store instructions or a computer program for execution by the at least one processor to enable the communication apparatus to perform operations comprising:

receiving a trigger frame, wherein the trigger frame comprises a resource unit allocation subfield that indicates a resource allocated to a station, the resource unit allocation subfield comprises a resource unit indication of 7 bits and a primary/secondary indication of 2 bits, the 2 bits indicate a location of a 80 MHz, and the 7 bits indicate a location of a resource unit (RU)/multiple resource unit (MRU) in the 80 MHz, wherein

the primary/secondary indication of the 2 bits indicates one of the following situations: 00 indicates primary 80 MHz (P80 MHz), 01 indicates secondary 80 MHz (S80 MHz), 10 indicates lower 80 MHz in secondary 160 MHz (S160 MHZ), and 11 indicates higher 80 MHz in the secondary 160 MHz (S160 MHz);

determining an absolute frequency corresponding to the primary/secondary indication of the 2 bits; and

determining, based on the absolute frequency and a value of the 7 bits, the RU/MRU allocated to the station.

10. The communication apparatus according to claim 9 , wherein an absolute frequency indication corresponding to the absolute frequency comprises 2 bits represented by (X1X0), and a correspondence of the primary/secondary indication and the absolute frequency indication is one of the following:

case a: the primary 80 MHz is in lowest 80 MHz at the absolute frequency; wherein the primary/secondary indication 00 corresponds to the absolute frequency indication 00, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 01, the primary/secondary indication 01 indicates the secondary 80 MHz, and the absolute frequency indication 01 indicates second lowest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 10, the primary/secondary indication 10 indicates 3rd 80 MHz, and the absolute frequency indication 10 indicates second highest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 11, the primary/secondary indication 11 indicates 4th 80 MHZ, and the absolute frequency indication 11 indicates highest 80 MHz; or

case b: the primary 80 MHz is in the second lowest 80 MHz at the absolute frequency; wherein the primary/secondary indication 00 corresponds to the absolute frequency indication 01, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 01 indicates the second lowest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 00, the primary/secondary indication 01 indicates the secondary 80 MHz, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 10, the primary/secondary indication 10 indicates the 3rd 80 MHz, and the absolute frequency indication 10 indicates the second highest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 11, the primary/secondary indication 11 indicates the 4th 80 MHz, and the absolute frequency indication 11 indicates the highest 80 MHz; or

case c: the primary 80 MHz is in the second highest 80 MHz at the absolute frequency; the primary/secondary indication 00 corresponds to the absolute frequency indication 10, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 10 indicates the second highest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 11, the primary/secondary indication 01 indicates the secondary 80 MHz, and the absolute frequency indication 11 indicates the highest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 00, the primary/secondary indication 10 indicates the 3rd 80 MHZ, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 01, the primary/secondary indication 11 indicates the 4 th 80 MHz, and the absolute frequency indication 01 indicates the second lowest 80 MHz; or

case d: the primary 80 MHz is in the highest 80 MHz at the absolute frequency, the primary/secondary indication 00 corresponds to the absolute frequency indication 11, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 11 indicates the highest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 10, the primary/secondary indication 01 indicates the secondary 80 MHz, and the absolute frequency indication 10 indicates the second highest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 00, the primary/secondary indication 10 indicates the 3rd 80 MHZ, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 01, the primary/secondary indication 11 indicates the 4 th 80 MHz, and the absolute frequency indication 01 indicates the second lowest 80 MHz.

11. The communication apparatus according to claim 9 , wherein:

the primary/secondary indication of the 2 bits corresponds to the absolute frequency, and the absolute frequency is indicated by N, and N is one of the following values: 0, 1, 2, or 3, wherein 0, 1, 2, and 3 respectively represent lowest 80 MHZ, second lowest 80 MHZ, second highest 80 MHZ, and highest 80 MHz.

12. The communication apparatus according to claim 11 , wherein a correspondence of the primary/secondary indication and the Nis one of the following:

case c: the primary 80 MHz is in second highest 80 MHz at the absolute frequency; when the primary/secondary indication of 2 bits are 00, N is equal to 2; when the primary/secondary indication of 2 bits are 01, Nis equal to 3; when the primary/secondary indication of 2 bits are 10, N is equal to 0; and when the primary/secondary indication of 2 bits are 11, N is equal to 1; and

13. The communication apparatus according to claim 11 , wherein the primary/secondary indication comprises a first bit and a bit B0; and wherein a correspondence of the primary/secondary indication and the Nis one of the following:

case a: the primary 80 MHz is in lowest 80 MHz at an absolute frequency; when the first bit is equal to 0, it indicates that the RU/MRU belongs to a primary 160 MHz, and in the primary 160 MHz, N is equal to 0 when B0 is equal to 0, and is equal to 1 when B0 is equal to 1; and when the first bit is equal to 1, it indicates that the RU/MRU belongs to the secondary 160 MHz, and in the secondary 160 MHz, N is equal to 2 when B0 is equal to 0, and is equal to 3 when B0 is equal to 1;

case b: the primary 80 MHz is in second lowest 80 MHz at the absolute frequency; when the first bit is equal to 0, it indicates that the RU/MRU belongs to the primary 160 MHZ, and in the primary 160 MHz, N is equal to 1 when B0 is equal to 0, and is equal to 0 when B0 is equal to 1; and when the first bit is equal to 1, it indicates that the RU/MRU belongs to the secondary 160 MHz, and in the secondary 160 MHz, N is equal to 2 when B0 is equal to 0, and is equal to 3 when B0 is equal to 1;

case d: the primary 80 MHz is in highest 80 MHz at the absolute frequency, when the first bit is equal to 0, it indicates that the RU/MRU belongs to the primary 160 MHz, and in the primary 160 MHz, N is equal to 3 when B0 is equal to 0, and is equal to 2 when B0 is equal to 1; and when the first bit is equal to 1, it indicates that the RU/MRU belongs to the secondary 160 MHz, and in the secondary 160 MHz, N is equal to 0 when B0 is equal to 0, and is equal to 1 when B0 is equal to 1.

14. The communication apparatus according to claim 9 , wherein;

indexes of RUs of a same size in ascending order correspond to start frequencies of the RUs in ascending order, or

indexes of MRUs of a same size in ascending order correspond to start frequencies of the MRUs in ascending order, or

indexes of RUs of a same size in ascending order correspond to start frequencies of punctured RUs in the RUs in ascending order, or

indexes of RUs of a same size in ascending order correspond to start frequencies of punctured RUs in the RUs in ascending order.

15. The communications apparatus according to claim 9 , wherein the 80 MHz indicated by the primary/secondary indication is the 80 MHz corresponding to a smallest resource unit (RU) in the MRU.

16. A chip, comprising at least one processor and an interface, wherein the interface is configured to obtain a computer program for execution by the at least one processor is to perform operations comprising:

receiving a trigger frame, wherein the trigger frame comprises a resource unit allocation subfield that indicates a resource allocated to a station, the resource unit allocation subfield comprises a resource unit indication of 7 bits and a primary/secondary indication of 2 bits, the 2 bits indicate a location of a 80 MHZ, and the 7 bits indicate a location of a resource unit (RU)/multiple resource unit (MRU) in the 80 MHz, wherein

determining an absolute frequency corresponding to the primary/secondary indication of the 2 bits; and

determining, based on the absolute frequency and a value of the 7 bits, the RU/MRU allocated to the station.

17. The chip according to claim 16 , wherein an absolute frequency indication corresponding to the absolute frequency comprises 2 bits represented by (X1X0), and a correspondence of the primary/secondary indication and the absolute frequency indication is one of the following:

case a: the primary 80 MHz is in lowest 80 MHz at the absolute frequency; wherein the primary/secondary indication 00 corresponds to the absolute frequency indication 00, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 01, the primary/secondary indication 01 indicates the secondary 80 MHz, and the absolute frequency indication 01 indicates second lowest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 10, the primary/secondary indication 10 indicates 3rd 80 MHZ, and the absolute frequency indication 10 indicates second highest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 11, the primary/secondary indication 11 indicates 4 th 80 MHZ, and the absolute frequency indication 11 indicates highest 80 MHz; or

case b: the primary 80 MHz is in the second lowest 80 MHz at the absolute frequency;

wherein the primary/secondary indication 00 corresponds to the absolute frequency indication 01, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 01 indicates the second lowest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 00, the primary/secondary indication 01 indicates the secondary 80 MHz, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 10, the primary/secondary indication 10 indicates the 3rd 80 MHZ, and the absolute frequency indication 10 indicates the second highest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 11, the primary/secondary indication 11 indicates the 4 th 80 MHZ, and the absolute frequency indication 11 indicates the highest 80 MHz; or

case c: the primary 80 MHz is in the second highest 80 MHz at the absolute frequency; the primary/secondary indication 00 corresponds to the absolute frequency indication 10, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 10 indicates the second highest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 11, the primary/secondary indication 01 indicates the secondary 80 MHz, and the absolute frequency indication 11 indicates the highest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 00, the primary/secondary indication 10 indicates the 3 rd 80 MHz, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 01, the primary/secondary indication 11 indicates the 4 th 80 MHz, and the absolute frequency indication 01 indicates the second lowest 80 MHz; or

case d: the primary 80 MHz is in the highest 80 MHz at the absolute frequency, the primary/secondary indication 00 corresponds to the absolute frequency indication 11, the primary/secondary indication 00 indicates the primary 80 MHz, and the absolute frequency indication 11 indicates the highest 80 MHz; the primary/secondary indication 01 corresponds to the absolute frequency indication 10, the primary/secondary indication 01 indicates the secondary 80 MHz, and the absolute frequency indication 10 indicates the second highest 80 MHz; the primary/secondary indication 10 corresponds to the absolute frequency indication 00, the primary/secondary indication 10 indicates the 3 rd 80 MHz, and the absolute frequency indication 00 indicates the lowest 80 MHz; the primary/secondary indication 11 corresponds to the absolute frequency indication 01, the primary/secondary indication 11 indicates the 4 th 80 MHz, and the absolute frequency indication 01 indicates the second lowest 80 MHz.

18. The chip according to claim 16 , wherein:

the primary/secondary indication of the 2 bits corresponds to the absolute frequency, and the absolute frequency is indicated by N, and N is one of the following values: 0, 1, 2, or 3, wherein 0, 1, 2, and 3 respectively represent lowest 80 MHZ, second lowest 80 MHz, second highest 80 MHZ, and highest 80 MHZ.

19. The chip according to claim 18 , wherein a correspondence of the primary/secondary indication and the N is one of the following:

20. The chip according to claim 18 , wherein the primary/secondary indication comprises a first bit and a bit B0; and wherein a correspondence of the primary/secondary indication and the N is one of the following:

and when the first bit is equal to 1, it indicates that the RU/MRU belongs to the secondary 160 MHz, and in the secondary 160 MHz, N is equal to 2 when B0 is equal to 0, and is equal to 3 when B0 is equal to 1; case b: the primary 80 MHz is in second lowest 80 MHz at the absolute frequency; when the first bit is equal to 0, it indicates that the RU/MRU belongs to the primary 160 MHz, and in the primary 160 MHz, N is equal to 1 when B0 is equal to 0, and is equal to 0 when B0 is equal to 1; and when the first bit is equal to 1, it indicates that the RU/MRU belongs to the secondary 160 MHz, and in the secondary 160 MHz, N is equal to 2 when B0 is equal to 0, and is equal to 3 when B0 is equal to 1;

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2023

From: HU, MENGSHI; YU, JIAN; GAN, MING

To: HUAWEI TECHNOLOGIES CO., LTD.

Reel/Frame 065274/0130 →

Priority Claims (3)

CN 202010923701.8 · Sep 4, 2020 · national

CN 202011395419.3 · Dec 2, 2020 · national

CN 202110009966.1 · Jan 5, 2021 · national

Continuity (2)

Continuation PCTCN2021116560 · Sep 3, 2021

Related Publication 20230209525A1 · Jun 29, 2023

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