公开(公告)号：US20240236880A1

公开(公告)日：2024-07-11

申请号：US18388928

申请日：2023-11-13

Applicant: Qualcomm Incorporated

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

IPC: H04W56/00 ,  H04L5/00 ,  H04W84/12

CPC classification number: H04W56/0005 ,  H04L5/0096 ,  H04W56/0015 ,  H04W84/12

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.

公开(公告)号：US20190268892A1

公开(公告)日：2019-08-29

申请号：US16247538

申请日：2019-01-14

Applicant: QUALCOMM Incorporated

Inventor： Ravi Gidvani ,  Abhishek Pramod Patil ,  Alfred Asterjadhi ,  George Cherian

IPC: H04W72/04 ,  H04W76/11 ,  H04B7/0413 ,  H04W48/16

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer-readable media, for co-located Basic Service Sets (BSSs). A BSS refers to an access point (AP), wireless channel configuration, and associated stations (STAs). In one aspect, a wireless local area network (WLAN) apparatus may operate multiple virtual access points (VAPs) and multiple BSSs. The BSS may be considered co-located if they are implemented in the same physical device (such as a WLAN apparatus). Furthermore, the BSSs may be considered co-hosted if they share the same band and wireless channel, but independently signal different management frames. To aid STAs in learning about the co-located or co-hosted BSSs, the present disclosure provides techniques to advertise the co-located or co-hosted BSSs. Further improvements for co-hosted BSSs include the use of control frames that can aggregate information for more than one co-hosted BSS sharing a same wireless channel.

公开(公告)号：US10128999B2

公开(公告)日：2018-11-13

申请号：US14745343

申请日：2015-06-19

Applicant: QUALCOMM Incorporated

Inventor： Ravi Gidvani ,  Srinivasa Kumar Duvvuri

IPC: H04Q7/00 ,  H04L5/00 ,  H04W74/00 ,  H04W28/02 ,  H04L12/825 ,  H04W74/08 ,  H04W84/12

Abstract: Methods, systems, and devices are described for wireless communication. An access point may use a protection mechanism to cause stations to defer from accessing the wireless medium during a quiet duration. During the quiet duration the access point may transmit data packets to stations. After the quiet duration, a contention period may be present to allow stations to monitor the medium to make sure the medium is continuously idle before attempting a transmission. The access point may determine a quiet duration based on a number of data packets pending transmission to at least one station. Furthermore, the access point may transmit data packets to a number of stations during the quiet duration. By determining the quiet duration based on a number of data packets, the access point may reduce the overall number of contention periods which may increase throughput and decrease power consumption.

公开(公告)号：US20170353226A1

公开(公告)日：2017-12-07

申请号：US15611353

申请日：2017-06-01

Applicant: QUALCOMM Incorporated

Inventor： Sandip HomChaudhuri ,  Pradeep Kumar Yenganti ,  Srikant Kuppa ,  Zhanfeng Jia ,  Ning Zhang ,  Ravi Gidvani ,  Subramania Sharma Thandaveswaran ,  Ravi Konda

IPC: H04B7/06 ,  H04B17/318 ,  H04L12/26 ,  H04W84/12

CPC classification number: H04B7/0691 ,  H04B7/0413 ,  H04B7/0617 ,  H04B7/0689 ,  H04B7/0697 ,  H04B17/318 ,  H04L43/16 ,  H04W84/12

Abstract: Methods, systems, and devices for wireless communication are described. A wireless device (e.g., an access point or a station) capable of supporting multiple chain configuration modes may monitor traffic on a wireless channel. The wireless device may, based on the monitoring, determine a series of values for a metric that is indicative of communication conditions. The metric may be a packet rate, channel congestion, or signal strength. The wireless device may dynamically select one of the supported chain configuration modes in which to operate based on the series of values for the metric. In some cases, the wireless device may compute a value for the metric based on the series of values and compare the value of the metric to a predetermined threshold. In such cases, selection of the chain configuration mode may be based on the results of the comparison. In some examples, one or metrics may be used.

公开(公告)号：US20170280414A1

公开(公告)日：2017-09-28

申请号：US15370977

申请日：2016-12-06

Applicant: QUALCOMM Incorporated

Inventor： Ravi Gidvani ,  Sudheer Kumar Suryadevara ,  Carlos Horacio Aldana

IPC: H04W64/00 ,  G01S11/02 ,  H04L5/00

CPC classification number: H04W64/003 ,  G01S11/02 ,  H04L5/0055 ,  H04W48/10 ,  H04W52/0209 ,  H04W64/00 ,  H04W88/08

Abstract: Disclosed are methods, systems and devices for obtaining a measurement of a range between two devices. For example, wireless stations may obtain a measurement of range between the wireless stations based, at least in part, on an exchange messages such as fine timing measurement (FTM) messages. In a particular implementation, FTM messages may be received at a transceiver device in a burst of FTM messages from a responding wireless station. An acknowledgement messages may be transmitted to the responding wireless station immediately in response to receipt of the FTM message.

公开(公告)号：US10938644B2

公开(公告)日：2021-03-02

申请号：US16288025

申请日：2019-02-27

Applicant: QUALCOMM Incorporated

Inventor： Yongchun Xiao ,  Abhishek Pramod Patil ,  Sandip HomChaudhuri ,  Ravi Gidvani ,  Alfred Asterjadhi ,  George Cherian

IPC: H04W24/02 ,  H04L12/24 ,  H04W40/24 ,  H04L12/28 ,  H04W76/15 ,  H04L12/709 ,  H04W48/16 ,  H04W72/04 ,  H04W88/08 ,  H04W74/00 ,  H04W48/12 ,  H04W88/16 ,  H04W84/12 ,  H04W28/06

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for implementing conditional inheritance in a management frame for two or more basic service sets (BSSs). In one aspect, an apparatus may be configurable to provide functions of a first virtual access point (VAP) corresponding to a first BSS and a second VAP corresponding to a second BSS. The apparatus may determine a first BSS identifier (BSSID) profile for the second VAP by customizing one or more management elements of management information of the first VAP. The apparatus may configure a first non-inheritance element of the first BSSID profile associated with the second VAP to indicate usage of at least one management element of the management information by the second BSS associated with the second VAP is disabled. The apparatus may generate a management frame that comprises at least the first BSSID profile for transmission.

公开(公告)号：US20200015181A1

公开(公告)日：2020-01-09

申请号：US16505506

申请日：2019-07-08

Applicant: QUALCOMM Incorporated

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

IPC: H04W56/00 ,  H04L5/00 ,  H04W84/12

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.

公开(公告)号：US20190268221A1

公开(公告)日：2019-08-29

申请号：US16288025

申请日：2019-02-27

Applicant: QUALCOMM Incorporated

Inventor： Yongchun Xiao ,  Abhishek Pramod Patil ,  Sandip HomChaudhuri ,  Ravi Gidvani ,  Alfred Asterjadhi ,  George Cherian

IPC: H04L12/24 ,  H04W40/24 ,  H04L12/28

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for implementing conditional inheritance in a management frame for two or more basic service sets (BSSs). In one aspect, an apparatus may be configurable to provide functions of a first virtual access point (VAP) corresponding to a first BSS and a second VAP corresponding to a second BSS. The apparatus may determine a first BSS identifier (BSSID) profile for the second VAP by customizing one or more management elements of management information of the first VAP. The apparatus may configure a first non-inheritance element of the first BSSID profile associated with the second VAP to indicate usage of at least one management element of the management information by the second BSS associated with the second VAP is disabled. The apparatus may generate a management frame that comprises at least the first BSSID profile for transmission.

公开(公告)号：US20180295573A1

公开(公告)日：2018-10-11

申请号：US15481106

申请日：2017-04-06

Applicant: QUALCOMM Incorporated

Inventor： Ravi Gidvani ,  Sandip HomChaudhuri ,  Zhanfeng Jia ,  BadriSrinivasan Sampathkumar ,  Alireza Raissinia ,  Srinivas Katar ,  Madhan Jaganathan ,  Xiaolong Huang

IPC: H04W52/02 ,  H04W72/04

Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may communicate with a plurality of stations in a basic service set (BSS) according to a target wakeup time (TWT) slot duration. The AP may identify one or more congestion or interference factors for the BSS. In some cases, the AP may identify a congestion score based at least in part on at least one of the one or more congestion factors from one or more stations that can be part of its own BSS, and an interference score based at least in part on at least one of the one or more interference factors form one or more stations that are not part of AP's BSS. In some cases, the AP may modify the TWT slot duration based at least in part on the congestion score and the interference score.

公开(公告)号：US20180110046A1

公开(公告)日：2018-04-19

申请号：US15719446

申请日：2017-09-28

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Alfred Asterjadhi ,  George Cherian ,  Alireza Raissinia ,  Ravi Gidvani

IPC: H04W72/04

CPC classification number: H04W72/0446 ,  H04W52/0216 ,  H04W52/0219 ,  H04W74/006 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1224 ,  Y02D70/1244 ,  Y02D70/1246 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144

Abstract: This disclosure provides systems, methods and apparatuses for dynamically changing one or more operating parameters of a wireless network. In some aspects, an AP may detect the presence of an overlapping BSS having the same color as its own BSS. Upon detecting a color collision, the AP may temporarily disable color-related features (such as intra-PPDU power save, multi-NAV operation, spatial reuse, and the like) of its associated STAs. If the color collision persists beyond a threshold duration, the AP may dynamically change the color of its own BSS to a different BSS color. In some other aspects, the AP may detect the presence of an overlapping BSS having the same TBTT as its own. Upon detecting a beacon collision, the AP may expedite or delay the timing of its own TBTT so that it does not interfere or overlap with the TBTT of another BSS.