Reception of management frames for multiple basic services sets (BSSs)
地域：
CA
CA San Diego
摘要
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.
說(shuō)明書(shū)
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This Patent Application claims priority to Indian Provisional Patent Application No. 201841025518 filed on Jul. 9, 2018, and assigned to the assignee hereof. The disclosure of the prior Application is considered part of and is incorporated by reference in this Patent Application.
This disclosure relates to the field of network communication, and more particularly to wireless local area networks.
An access point (AP) of a wireless local area network (WLAN) can enable wireless network access for a client device (also referred to as a station, or STA). The AP may provide a wireless coverage area used by one or more STAs to access the WLAN. A Basic Services Set (BSS) may be defined as one AP, the wireless channel configuration, and the set of STAs that are wirelessly associated with the AP. The wireless channel configuration may utilize a portion of a frequency band (such as a 2.4 GHz frequency band, a 5 GHz frequency band, etc.). Within each frequency band, there may be different channels which an AP may utilize as part of the wireless channel configuration. Furthermore, the AP may utilize more than one antenna. For example, an AP may utilize multiple-input-multiple-output (MIMO) communication in which multiple antennas transmit wireless signals.
權(quán)利要求
What is claimed is:1. A wireless node, comprising:an interface 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); and a first processor configured to: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 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, and determine whether the BSS profile is split between a first Multiple BSSID element of the first management frame and a second Multiple BSSID element of the first management frame in response to a determination that the first management frame includes the BSS profile of the BSS associated with the wireless node. 2. The wireless node of claim 1 , wherein the first processor is further configured to:determine to discard the first management frame without further processing the first management frame based, at least in part, on a determination that the first management frame does not include the BSS profile of the BSS associated with the wireless node. 3. The wireless node of claim 1 , in response to the determination that the first management frame includes the BSS profile of the BSS associated with the wireless node, the first processor is further configured to:determine whether the BSS profile of the BSS has changed compared to a previous instance of the BSS profile that was included in a previously received management frame, and determine to further process the first management frame in response to a determination that the BSS profile has changed compared to the previous instance of the BSS profile. 4. The wireless node of claim 3 , wherein the first processor is further configured to:determine to discard the first management frame without further processing the first management frame in response to a determination that the BSS profile has not changed compared to the previous instance of the BSS profile. 5. The wireless node of claim 1 , wherein the first processor configured to determine whether the first management frame includes the BSS profile of the BSS associated with the wireless node 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 further comprises the first processor 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. 6. The wireless node of claim 1 , wherein the first processor is further configured to:monitor management frames transmitted by the WLAN apparatus; determine a repeating pattern of the plurality of BSS profiles included across a repeating sequence of the management frames transmitted by the WLAN apparatus based on the monitoring of the management frames; and determine the first management frame includes the BSS profile of the BSS based, at least in part, on the repeating pattern of the plurality of BSS profiles included across the repeating sequence of the management frames. 7. The wireless node of claim 1 , wherein the first processor is further configured to:determine the first management frame includes the BSS profile of the BSS based, at least in part, on a determination that the first management frame is a Delivery Traffic Indication Message (DTIM) management frame. 8. The wireless node of claim 1 , wherein the first processor is further configured to:determine a DTIM interval associated with the BSS profile of the BSS associated with the wireless node; determine a repeating pattern of transmission of management frames that include the BSS profile of the BSS based, at least in part, on the DTIM interval; and determine the first management frame includes the BSS profile of the BSS based, at least in part, on a determination that the first management frame is one of the management frames in the repeating pattern of transmission of management frames that include the BSS profile of the BSS. 9. The wireless node of claim 1 , wherein the first processor is further configured to wake up a host processor to further process the first management frame in response to the determination that the first management frame includes the BSS profile of the BSS associated with the wireless node. 10. The wireless node of claim 1 wherein the first processor is further configured to:determine the first Multiple BSSID element or the second Multiple BSSID element includes an indicator element that indicates the BSS profile is split between the first Multiple BSSID element and the second Multiple BSSID element. 11. The wireless node of claim 1 , wherein the first processor is 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 , in response to the determination that the first management frame includes the BSS profile of the BSS associated with the wireless node, the first processor is further configured to:identify a first indicator element in a first portion of the BSS profile included in a first Multiple BSSID element of the first management frame, the first indicator element indicating a start of the BSS profile; determine a second portion of the BSS profile included in a second Multiple BSSID element of the first management frame does not include an indicator element; identify a second indicator element in a next BSS profile included in the second Multiple BSSID element, the second indicator element indicating a start of the next BSS profile; and determine the BSS profile is split between the first Multiple BSSID element and the second Multiple BSSID element based, at least in part, on an identification of the first indicator element, an identification of the second indicator element, and a determination that the second portion of the BSS profile included in the second Multiple BSSID element does not include an indicator element. 13. The wireless node of claim 1 , further comprising:a receiver configured to receive the first management frame, wherein the wireless node is configured as a station. 14. A wireless node, comprising:a processor configured to:operate multiple virtual access points (VAPs) associated with corresponding multiple basis service sets (BSSs), the multiple VAPs including at least a first VAP for a first BSS and a plurality of other VAPs for a plurality of other BSSs; determine an arrangement of a plurality of BSS profiles associated with the plurality of other BSSs within one or more management frames including a first management frame; and split a first BSS profile of the plurality of BSS profiles between a first Multiple BSSID element of the first management frame and a second Multiple BSSID element of the first management frame; and generate the one or more management frames including the first management frame; and an interface configured to output the one or more management frames including the first management frame for transmission to one or more wireless local area network (WLAN) apparatuses associated with the first BSS and at least one of the plurality of other BSSs. 15. The wireless node of claim 14 , wherein the processor configured to determine the arrangement of the plurality of BSS profiles associated with the plurality of other BSSs within the one or more management frames further comprises the processor configured to:determine a repeating pattern of the plurality of BSS profiles to be included across a repeating sequence of management frames; and generate the repeating sequence of management frames for transmission via the interface. 16. The wireless node of claim 14 , wherein the processor configured to determine the arrangement of the plurality of BSS profiles associated with the plurality of other BSSs within the one or more management frames further comprises the processor configured to:determine Delivery Traffic Indication Message (DTIM) intervals associated with the plurality of BSS profiles; and determine a repeating pattern of transmission of management frames based, at least in part, on the DTIM intervals, wherein each management frame of the repeating pattern of transmission of management frames includes one or more of the plurality of BSS profiles. 17. The wireless node of claim 14 , wherein the processor configured to determine the arrangement of the plurality of BSS profiles associated with the plurality of other BSSs within the one or more management frames further comprises the processor configured to:determine a same DTIM interval for each of the plurality of BSS profiles; and generate a DTIM management frame for transmission that includes the plurality of BSS profiles. 18. The wireless node of claim 14 , wherein the processor is further configured to:determine whether a second BSS profile of the plurality of BSS profiles has changed compared to a previous instance of the second BSS profile, the second BSS profile associated with a second BSS; and determine to include the second BSS profile in a next management frame associated with the second BSS in response to determining the second BSS profile has changed. 19. The wireless node of claim 14 , wherein a first portion of the first BSS profile is included in the first Multiple BSSID element of the first management frame and a second portion of the first BSS profile is included in the second Multiple BSSID element of the first management frame. 20. The wireless node of claim 19 , whereinthe first portion of the first BSS profile included in the first Multiple BSSID element includes a first indicator element that indicates a start of the first BSS profile, the second portion of the first BSS profile included in the second Multiple BSSID element does not include an indicator element, and a second BSS profile included in the second Multiple BSSID element includes a second indicator element that indicates a start of the second BSS profile. 21. The wireless node of claim 20 , wherein the first indicator element is a first capabilities element associated with the first BSS profile, and the second indicator element is a second capabilities element associated with the second BSS profile. 22. The wireless node of claim 14 , further comprising:a transmitter configured to transmit the one or more management frames, wherein the wireless node is configured as an access point. 23. A method performed by 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 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 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; and determining whether the BSS profile is split between a first Multiple BSSID element of the first management frame and a second Multiple BSSID element of the first management frame in response to a determination that the first management frame includes the BSS profile of the BSS associated with the wireless node. 24. The method of claim 23 , further comprising:in response to determining that the first management frame includes the BSS profile of the BSS associated with the wireless node,determining whether the BSS profile of the BSS has changed compared to a previous instance of the BSS profile that was included in a previously received management frame, and determining to further process the first management frame is in response to determining that the BSS profile has changed compared to the previous instance of the BSS profile. 25. The method of claim 23 , wherein determining whether the first management frame includes the BSS profile of the BSS associated with the wireless node 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 comprises:determining 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. 26. A method performed by a wireless node, comprising:operating, at the wireless node, multiple virtual access points (VAPs) associated with corresponding multiple basis service sets (BSSs), the multiple VAPs including at least a first VAP for a first BSS and a plurality of other VAPs for a plurality of other BSSs; determining an arrangement of a plurality of BSS profiles associated with the plurality of other BSSs within one or more management frames including a first management frame; splitting a first BSS profile of the plurality of BSS profiles between a first Multiple BSSID element of the first management frame and a second Multiple BSSID element of the first management frame; and generating the one or more management frames including the first management frame for transmission. 27. The method of claim 26 , wherein determining the arrangement of the plurality of BSS profiles associated with the plurality of other BSSs within the one or more management frames comprises:determining a repeating pattern of the plurality of BSS profiles to be included across a repeating sequence of management frames; and generating the repeating sequence of management frames for transmission.
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