IP Library › Granted Patent US 12,207,211
Granted Patent B2
US 12,207,211 · App. 17/877,772 · Granted Jan 21, 2025

Synchronization in access point (AP) coordination

Inventors: Abhishek Pramod Patil (San Diego, CA); George Cherian (San Diego, CA); Alfred Asterjadhi (San Diego, CA)
Assignee: QUALCOMM Incorporated
H04W56/001H04B7/10H04W88/08H04W92/20
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Quick Facts
Patent No.
US 12,207,211
App. No.
17/877,772
Granted
Jan 21, 2025
Kind
B2
Abstract

Certain aspects of the present disclosure provide an apparatus for wireless communication. The apparatus generally includes a processing system configured to generate a message comprising coordination information, wherein the apparatus is associated with a first AP, the message to be used for coordinated communications by the first AP and a second AP, wherein the first AP and the second AP are associated with different basic service sets (BSSs), and an interface configured to output the message for transmission during a networking coordination window of a networking cluster.

Claims (24)

1. An apparatus for wireless communication, comprising:

one or more memories; and

one or more processors, coupled to the one or more memories, configured to:

generate a message comprising coordination information, wherein the coordination information comprises at least service period (SP) information indicating a broadcast-target wakeup time (B-TWT) SP, wherein the apparatus is associated with a first access point (AP), wherein the message includes information associated with coordinated communications by the first AP and a second AP, and wherein the first AP and the second AP are associated with different basic service sets (BSSs); and

transmit the message.

2. The apparatus of claim 1 , wherein the coordination information comprises synchronization information.

3. The apparatus of claim 1 , wherein the one or more processors are further configured to assign a wireless node to participate in a networking cluster to synchronize clocks of the first AP and the second AP, wherein the message is outputted for transmission to the wireless node.

4. The apparatus of claim 1 , wherein the one or more processors are further configured to obtain a synchronization beacon in a networking coordination window of a networking cluster, wherein clocks of the first AP and the second AP are synchronized based on the synchronization beacon.

5. The apparatus of claim 1 , the SP information comprising an update to a previously scheduled SP.

6. The apparatus of claim 1 , wherein the coordination information comprises a timing synchronization function (TSF).

7. The apparatus of claim 1 , wherein the one or more processors are configured to align or orthogonalize at least one of downlink (DL) or uplink (UL) transmissions for the first AP and the second AP in one or more SPs in accordance with the coordination information.

8. The apparatus of claim 1 , further comprising at least one antenna, wherein the message is transmitted via the at least one antenna, the apparatus being configured as the first AP.

9. A method for wireless communication performed by an apparatus, comprising:

generating a message comprising coordination information, wherein the coordination information comprises at least service period (SP) information indicating a broadcast-target wakeup time (B-TWT) SP, wherein the apparatus is associated with a first access point (AP), wherein the message includes information associated with coordinated communications by the first AP and a second AP, and wherein the first AP and the second AP are associated with different basic service sets (BSSs); and

transmitting the message.

10. The method of claim 9 , wherein the coordination information comprises synchronization information.

11. The method of claim 9 , further comprising assigning a wireless node to participate in a networking cluster to synchronize clocks of the first AP and the second AP, wherein the message is outputted for transmission to the wireless node.

12. The method of claim 9 , further comprising obtaining a synchronization beacon in a networking coordination window of a networking cluster, wherein clocks of the first AP and the second AP are synchronized based on the synchronization beacon.

13. The method of claim 9 , the SP information comprising an update to a previously scheduled SP.

14. The method of claim 9 , wherein the coordination information comprises a timing synchronization function (TSF).

15. The method of claim 9 , further comprising aligning or orthogonalizing at least one of downlink (DL) or uplink (UL) transmissions for the first AP and the second AP in one or more SPs in accordance with the coordination information.

16. The method of claim 9 , wherein the message is transmitted via at least one antenna, the apparatus being configured as the first AP.

17. The apparatus of claim 1 , wherein the one or more processors configured to transmit the message are further configured to transmit the message directly to the second AP.

18. The method of claim 9 , wherein the transmitting comprises transmitting the message directly to the second AP.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 5, 2022
From: PATIL, ABHISHEK PRAMOD; CHERIAN, GEORGE; ASTERJADHI, ALFRED
To: QUALCOMM INCORPORATED
Reel/Frame 061970/0479 →
Continuity (3)
Continuation 16598605 · Oct 10, 2019
Provisional Application 62751473 · Oct 26, 2018
Related Publication 20220369253A1 · Nov 17, 2022
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