IP Library › Granted Patent US 11,272,436

Granted Patent B2

US 11,272,436 · App. 16/878,373 · Granted Mar 8, 2022

Communication method and apparatus

Inventors: Ming Gan (Shenzhen, CN); Dandan Liang (Shenzhen, CN)

H04W48/16 H04B17/364 H04L5/0048 H04L5/0053 H04W8/005 H04W24/10 H04W48/08 H04W48/10 H04W72/0453 H04W72/1278 H04W76/11 H04W84/12

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Quick Facts

Patent No.: US 11,272,436
App. No.: 16/878,373
Granted: Mar 8, 2022
Kind: B2

External Links

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Abstract

The application provides an information indication method, including generating a first frame, where the first frame includes address information of a station operating on a frequency band of 6 GHz; and transmitting the first frame on a 2.4 GHz and/or 5 GHz frequency band.

Claims (60)

1. A method for indicating information, the method comprising:

generating, by a reporting access point (AP), a Reduced Neighbor Report (RNR) element carried in a management frame, the RNR element comprising a target beacon transmission time (TBTT) information field for a reported AP, wherein the TBTT information field for the reported AP comprises a basic service set identifier (BSSID) subfield for the reported AP and a neighbor AP TBTT offset subfield for the reported AP; and

transmitting, by the reporting AP, the RNR element;

wherein in response to the BSSID subfield for the reported AP being set to a non-transmitted BSSID in a multiple BSSID set, the neighbor AP TBTT offset subfield for the reported AP is set to a value of a TBTT offset of an AP that has a transmitted BSSID from an immediately prior TBTT of the reporting AP that transmits the RNR element, and wherein the AP that has the transmitted BSSID is in the multiple BSSID set that comprises the reported AP, but the AP that has the transmitted BSSID is not the reporting AP;

wherein in response to the BSSID subfield for the reported AP being set to a transmitted BSSID in a multiple BSSID set or being set to a BSSID that is not in a multiple BSSID set, the neighbor AP TBTT offset subfield for the reported AP is set to a value of a TBTT offset of the reported AP from the immediately prior TBTT of the reporting AP that transmits the RNR element; and

wherein within the multiple BSSID set the AP that has the transmitted BSSID is the only AP that is allowed to transmit a beacon frame or a probe response, and wherein the reported AP that has the non-transmitted BSSID is not allowed to transmit a beacon frame or a probe response.

2. The method according to claim 1 , wherein the TBTT information field further includes a basic service set (BSS) Parameters subfield that comprises a Multiple BSSID subfield and a Transmitted BSSID subfield; and

wherein the Multiple BSSID subfield is set to 1 and the Transmitted BSSID subfield is set to 0, wherein the neighbor AP TBTT offset subfield is set to indicate an offset in time units (TUs), rounded down to the nearest TU, relative to the next TBTT of the AP that has the transmitted BSSID in the same multiple BSSID set from the immediately prior TBTT of the reporting AP that transmits the RNR element.

3. The method according to claim 1 , wherein the TBTT information field further comprises:

a Short SSID subfield that is computed based on the SSID of the reported AP.

4. The method according to claim 1 , wherein the reported AP is on a 6 GHz band, and wherein the reporting AP is on a 2.4 GHz band or a 5 GHz band.

5. The method according to claim 1 , wherein the RNR element further comprises at least one of the following:

a signal indicative of whether the reported AP is co-located with the reporting AP, wherein the reported AP being co-located with the reporting AP corresponds to the reported AP and the reporting AP being in a same physical device; or

a signal indicative of whether the reported AP and the reporting AP that transmits the RNR element are in a multiple bands supported device.

6. A communication method, comprising:

receiving, by a station, a Reduced Neighbor Report (RNR) element carried in a management frame, the RNR element comprising a target beacon transmission time (TBTT) information field for a reported access point (AP), wherein the TBTT information field comprise a basic service set identifier (BSSID) subfield for the reported AP and a neighbor AP TBTT offset field for the reported AP; and

processing, by the station, the RNR element;

wherein in response to the BSSID subfield for the reported AP being set to a non-transmitted BSSID in a multiple BSSID set, the neighbor AP TBTT offset subfield for the reported AP is set to a value of a TBTT offset of an AP that has a transmitted BSSID from an immediately prior TBTT of a reporting AP that transmits the RNR element, and wherein the AP that has the transmitted BSSID is in the multiple BSSID set that comprises the reported AP, but the AP that has the transmitted BSSID is not the reporting AP;

7. The method according to claim 6 , wherein the TBTT information field further includes a basic service set (BSS) Parameters subfield that comprises a Multiple BSSID subfield and a Transmitted BSSID subfield; and

8. The method according to claim 6 , wherein the TBTT information field further comprises:

a Short SSID subfield that is computed based on the SSID of the reported AP.

9. The method according to claim 6 , wherein the reported AP is on a 6 GHz band, and wherein the reporting AP is on a 2.4 GHz band or a 5 GHz band.

10. The method according to claim 6 , wherein the RNR element further comprises at least one of the following:

a signal indicative of whether the reported AP and the reporting AP that transmits the RNR element are in a multiple bands supported device.

11. A communication apparatus, wherein the communication apparatus comprises a reporting access point (AP), the communication apparatus comprising:

a processor; and

a memory storing processor-executable instructions that, when executed by the processor, cause the communication apparatus to:

generate a Reduced Neighbor Report (RNR) element carried in a management frame, the RNR element comprising a target beacon transmission time (TBTT) information field for a reported AP, wherein the TBTT information field for the reported AP comprises a basic service set identifier (BSSID) subfield for the reported AP and a neighbor AP TBTT offset subfield for the reported AP; and

transmit the RNR element;

12. The communication apparatus according to claim 11 , wherein the TBTT information field further includes a basic service set (BSS) Parameters subfield that comprises a Multiple BSSID subfield and a Transmitted BSSID subfield; and

13. The communication apparatus according to claim 11 , wherein the TBTT information field further comprises:

a Short SSID subfield that is computed based on the SSID of the reported AP.

14. The communication apparatus according to claim 11 , wherein the reported AP is on a 6 GHz band, and wherein the reporting AP is on a 2.4 GHz band or a 5 GHz band.

15. The communication apparatus according to claim 11 , wherein the RNR element further comprises at least one of the following:

a signal indicative of whether the reported AP and the reporting AP that transmits the RNR element are in a multiple bands supported device.

16. A communication apparatus, wherein the communication apparatus comprises a station, the communication apparatus comprising:

a processor; and

a memory storing processor-executable instructions that, when executed by the processor, cause the communication apparatus to:

receive a Reduced Neighbor Report (RNR) element carried in a management frame, wherein the RNR element comprises a target beacon transmission time (TBTT) information field for a reported access point (AP), wherein the TBTT information field for the reported AP comprise a basic service set identifier (BSSID) subfield for the reported AP and a neighbor AP TBTT offset field for the reported AP; and

process the RNR element;

wherein in response to the BSSID subfield for the reported AP being set to a non-transmitted BSSID, the neighbor AP TBTT offset subfield is set to a value of a TBTT offset of an AP that has a transmitted BSSID from an immediately prior TBTT of a reporting AP that transmits the RNR element, and wherein the AP that has the transmitted BSSID is in the multiple BSSID set that comprises the reported AP, but the AP that has the transmitted BSSID is not the reporting AP;

17. The communication apparatus according to claim 16 , wherein the TBTT information field further includes a basic service set (BSS) Parameters subfield that comprises a Multiple BSSID subfield and a Transmitted BSSID subfield; and

18. The communication apparatus according to claim 16 , wherein the TBTT information field further comprises:

a Short SSID subfield that is computed based on the SSID of the reported AP.

19. The communication apparatus according to claim 16 , wherein the reported AP is on a 6 GHz band, and wherein the reporting AP is on a 2.4 GHz band or a 5 GHz band.

20. The communication apparatus according to claim 16 , wherein the RNR element further comprises at least one of the following:

a signal indicative of whether the reported AP and the reporting AP that transmits the RNR element are in a multiple bands supported device.

Assignments (1)

ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 6, 2020

From: GAN, MING; LIANG, DANDAN

To: HUAWEI TECHNOLOGIES CO., LTD.

Reel/Frame 053423/0532 →

Priority Claims (2)

CN 201811361768.6 · Nov 15, 2018 · national

WO PCT/CN2018/118720 · Nov 30, 2018 · international

Continuity (2)

Continuation PCTCN2019071445 · Jan 11, 2019

Related Publication 20200280905A1 · Sep 3, 2020

Cited By (1)

US 12,363,622