Reception of management frames for multiple basic services sets (BSSs)

Patent metadata

Field	Value
Publication number	US-12232059-B2
Application number	US-202318388928-A
Country	US
Kind code	B2
Filing date	Nov 13, 2023
Priority date	Jul 9, 2018
Publication date	Feb 18, 2025
Grant date	Feb 18, 2025

Abstract

This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for analyzing management frames for multiple basic service sets (BSSs). In one aspect, a wireless node may obtain a first management frame from a wireless local area network (WLAN) apparatus, the WLAN apparatus operating multiple virtual access points (VAPs) respectively corresponding to multiple BSSs. The wireless node may determine whether the first management frame includes a BSS profile of a BSS associated with the wireless node based, at least in part, on an arrangement of a plurality of BSS profiles within one or more management frames. The wireless node may determine to further process the first management frame based, at least in part, on a determination that the first management frame includes the BSS profile of the BSS associated with the wireless node.

First claim

What is claimed is:

1. A wireless node, comprising:
one or more memories storing processor-executable code; and
one or more processors coupled to the one or more memories and, when executing the code, configured to:
obtain a first management frame from a wireless local area network (WLAN) apparatus, the WLAN apparatus operating multiple virtual access points (VAPs) respectively corresponding to multiple basic service sets (BSSs);
determine the first management frame includes a BSS profile of a BSS associated with the wireless node based, at least in part, on an arrangement of a plurality of BSS profiles within one or more management frames transmitted by the WLAN apparatus, the BSS being one of the multiple BSSs and the BSS profile being one of the plurality of BSS profiles;
identify a first nontransmitted BSS identifier (BSSID) capability element in a first portion of the BSS profile included in a first Multiple BSSID element of the first management frame, the first nontransmitted BSSID capability element indicating a start of the BSS profile; and
determine that a second portion of the BSS profile is included in a second Multiple BSSID element of the first management frame based on the second Multiple BSSID element containing a first BSS profile element that is not a second nontransmitted BSSID capability element.

2. The wireless node of claim 1 , wherein, to determine the first management frame includes the BSS profile of the BSS associated with the wireless node, the one or more processors, when executing the code, are further configured to:
determine the first management frame includes the BSS profile of the BSS based, at least in part, on a Multiple BSSID Index element included in the first Multiple BSSID element of the first management frame.

3. The wireless node of claim 2 , wherein each BSS profile of the plurality of BSS profiles is associated with a different value of a respective Multiple BSSID Index element.

4. The wireless node of claim 2 , wherein:
the Multiple BSSID Index element includes a value that is associated with the BSS profile; and
the Multiple BSSID Index element follows a service set identifier (SSID), the SSID following the first nontransmitted BSSID capability element.

5. The wireless node of claim 1 , wherein the one or more processors, when executing the code, are further configured to:
ignore a second management frame based, at least in part, on the second management frame being a non-Delivery Traffic Indication Message (DTIM) management frame.

6. The wireless node of claim 1 , wherein the one or more processors, when executing the code, are further configured to:
determine to skip a processing of a second management frame or one or more Multiple BSSID elements of the second management frame based, at least in part, on a determination that the one or more Multiple BSSID elements of the second management frame do not include the BSS profile of the BSS associated with the wireless node.

7. The wireless node of claim 6 , wherein, to determine to skip the processing of the second management frame or the one or more Multiple BSSID elements of the second management frame, the one or more processors, when executing the code, are further configured to:
determine to skip a further processing of the second management frame or the one or more Multiple BSSID elements of the second management frame based, at least in part, on one or more Multiple BSSID Index elements included in the one or more Multiple BSSID elements of the second management frame.

8. The wireless node of claim 1 , wherein, to determine the first management frame includes the BSS profile of the BSS associated with the wireless node, the one or more processors, when executing the code, are further configured to:
determine the first management frame includes the BSS profile of the BSS based, at least in part, on a repeating pattern of the plurality of BSS profiles included across a repeating sequence of management frames transmitted by the WLAN apparatus.

9. The wireless node of claim 1 , wherein, to determine the first management frame includes the BSS profile of the BSS associated with the wireless node, the one or more processors, when executing the code, are further configured to:
determine the first management frame includes the BSS profile of the BSS based, at least in part, on the first management frame corresponding to a Delivery Traffic Indication Message (DTIM) management frame associated with the BSS.

10. The wireless node of claim 9 , wherein a DTIM interval associated with the BSS profile of the BSS is a multiple of a repeating pattern of management frames.

11. The wireless node of claim 1 , wherein the one or more processors, when executing the code, are further configured to:
determine the first management frame includes at least a subset of the plurality of BSS profiles based, at least in part, on the arrangement of the plurality of BSS profiles within one or more management frames transmitted by the WLAN apparatus, the subset of the plurality of BSS profiles including the BSS profile.

12. The wireless node of claim 1 , wherein the first management frame includes an indication of a quantity of BSSIDs in a Multiple BSSID set, and wherein the Multiple BSSID set includes the plurality of BSS profiles.

13. The wireless node of claim 1 , wherein the multiple VAPs respectively corresponding to the multiple BSSs are associated with a Multiple BSSID set.

14. The wireless node of claim 1 , wherein the second Multiple BSSID element immediately follows the first Multiple BSSID element.

15. A method for wireless communication at a wireless node, comprising:
obtaining a first management frame from a wireless local area network (WLAN) apparatus, the WLAN apparatus operating multiple virtual access points (VAPs) respectively corresponding to multiple basic service sets (BSSs);
determining the first management frame includes a BSS profile of a BSS associated with the wireless node based, at least in part, on an arrangement of a plurality of BSS profiles within one or more management frames transmitted by the WLAN apparatus, the BSS being one of the multiple BSSs and the BSS profile being one of the plurality of BSS profiles;
identifying a first nontransmitted BSS identifier (BSSID) capability element in a first portion of the BSS profile included in a first Multiple BSSID element of the first management frame, the first nontransmitted BSSID capability element indicating a start of the BSS profile; and
determining that a second portion of the BSS profile is included in a second Multiple BSSID element of the first management frame based on the second Multiple BSSID element containing a first BSS profile element that is not a second nontransmitted BSSID capability element.

16. The method of claim 15 , wherein determining the first management frame includes the BSS profile of the BSS associated with the wireless node comprises:
determining the first management frame includes the BSS profile of the BSS based, at least in part, on a Multiple BSSID Index element included in the first Multiple BSSID element of the first management frame.

17. The method of claim 16 , wherein:
the Multiple BSSID Index element includes a value that is associated with the BSS profile;
each BSS profile of the plurality of BSS profiles is associated with a different value of a respective Multiple BSSID Index element; and
the Multiple BSSID Index element follows a service set identifier (SSID), the SSID following the first nontransmitted BSSID capability element.

18. The metho

Assignees

• Qualcomm Inc

Inventors

• Patil Abhishek Pramod
• Xiao Yongchun
• Gidvani Ravi
• Homchaudhuri Sandip
• Yenganti Pradeep Kumar
• Emmanuel Arul Davidson
• Cho James Simon
• Karthic Padmanabhan Venkataraman
• Cherian George
• Asterjadhi Alfred
• Malinen Jouni Kalevi

Classifications

• H04W56/0015

  one node acting as a reference for the others · CPC title

• H04L5/0096

  Indication of changes in allocation · CPC title

• H04W84/12

  WLAN [Wireless Local Area Networks] · CPC title

• H04W88/08

  Access point devices · CPC title

• H04W56/0005 Primary

  synchronizing of arrival of multiple uplinks · CPC title