公开(公告)号：WO2019217688A1

公开(公告)日：2019-11-14

申请号：PCT/US2019/031532

申请日：2019-05-09

Applicant: QUALCOMM INCORPORATED

Inventor： ZHANG, Xiaoxin ,  HOMCHAUDHURI, Sandip ,  LINDSKOG, Erik David ,  JONES, IV, Vincent Knowles ,  DAVIDSON, Andrew MacKinnon

IPC: H04W56/00 ,  H04W84/12

Abstract: An apparatus is disclosed according to certain aspects of the present disclosure. The apparatus comprises an interface configured to receive, from a wireless node, at least one ranging frame. The apparatus also comprises a processing system configured to determine at least one round trip time (RTT) between the apparatus and the wireless node based on the received at least one ranging frame, determine a quality of the at least one RTT based on the received at least one ranging frame, and generate a feedback frame comprising the at least one RTT and the quality of the at least one RTT. The interface is further configured to output a feedback frame for transmission to the wireless node.

公开(公告)号：WO2019169101A1

公开(公告)日：2019-09-06

申请号：PCT/US2019/020000

申请日：2019-02-28

Applicant: QUALCOMM INCORPORATED

Inventor： XIAO, Yongchun ,  PATIL, Abhishek Pramod ,  HOMCHAUDHURI, Sandip ,  GIDVANI, Ravi ,  ASTERJADHI, Alfred ,  CHERIAN, George

IPC: H04W48/08

Abstract: This disclosure provides systems, methods, and apparatus, including computer programs encoded on computer storage media, for implementing multi-link aggregation and conditional inheritance in a first basic service set (BSS). In one aspect, an apparatus may establish a first communication link with a first station (STA) of the first BSS using a first frequency band. The apparatus may determine a first link profile for a second communication link by customizing one or more management elements of management information associated with the first communication link. The apparatus may configure a first non-inheritance element of the first link profile associated with the second communication link to indicate usage of at least one management element of the management information by the second communication link is disabled. The apparatus may generate a management frame that comprises at least the first link profile, and may output the management frame for transmission.

公开(公告)号：WO2019089264A1

公开(公告)日：2019-05-09

申请号：PCT/US2018/056910

申请日：2018-10-22

Applicant: QUALCOMM INCORPORATED

Inventor： PATIL, Abhishek Pramod ,  CHERIAN, George ,  ASTERJADHI, Alfred ,  XIAO, Yongchun ,  HOMCHAUDHURI, Sandip

IPC: H04W52/02

CPC classification number: H04W52/0216 ,  H04W52/0219 ,  H04W52/0229 ,  H04W84/12

Abstract: This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for a STA. The STA receives a management frame including a first broadcast TWT parameter set associated with a broadcast TWT schedule identified by a first ID. The first broadcast TWT parameter set identifies a first time duration associated with a validity of the first broadcast TWT parameter set. The first broadcast TWT parameter set identifies at least four bits indicating the first time duration. In addition, the STA determines the validity of the first broadcast TWT parameter set based on the received first time duration. The STA may refrain from monitoring subsequent management frames (e.g., in order to sleep, to enter into a power saving mode, or to monitor other devices) that include the first broadcast TWT parameter set for a second time duration based on the first time duration.

公开(公告)号：WO2019014254A2

公开(公告)日：2019-01-17

申请号：PCT/US2018/041491

申请日：2018-07-10

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  JALLOUL, Louay ,  YENGANTI, Pradeep Kumar

IPC: H04B7/06

CPC classification number: H04L41/0816 ,  H04B7/0413 ,  H04B7/0689 ,  H04B17/336 ,  H04W24/08

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 dynamically select a chain configuration mode via channel analysis and energy efficiency analysis. A wireless device may monitor traffic on a wireless channel using a first chain configuration mode. The wireless device may determine an energy value associated with monitoring the traffic using the first ( e.g. , single) chain configuration, and further determine or infer an energy value associated with monitoring the traffic using a second ( e.g. , multi) chain configuration. The wireless device may perform a channel metric computation on the traffic ( e.g. , perform a QR decomposition of a channel matrix associated with the monitored traffic). The wireless device may then switch or select a chain configuration mode for operation based on a comparison between the determined energy values and the channel metric computation.

公开(公告)号：WO2018097940A1

公开(公告)日：2018-05-31

申请号：PCT/US2017/059563

申请日：2017-11-01

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  DAHLBY, Douglas ,  KRISHNA, Murali ,  SINGH, Harinder ,  KONDA, Ravi ,  CHINTAMNEEDI, BalaSubrahmanyam

IPC: H04W52/02 ,  G06F12/02 ,  G11C11/406

Abstract: The disclosure relates to minimizing power consumption of a WiFi system-on- chip (SOC) during idle periods. The disclosed architecture includes memory banks for the WiFi SoC's embedded processor that can be independently powered on/off and a Memory Management Unit (MMU) to translate virtual addresses to physical addresses and generate exceptions to process accesses to virtual addresses without a corresponding physical address. The architecture can implement a demand paging scheme whereby a MMU fault from an access to code/data not within the embedded memory causes the processor to fetch the code/data from an off-chip secondary memory. To minimize page faults, the architecture stores WiFi client code/data within the embedded processor's memory that is repeatedly accessed with a short periodicity or where there is an intolerance for delays of accessing the code/data.

公开(公告)号：WO2017220036A1

公开(公告)日：2017-12-28

申请号：PCT/CN2017/090075

申请日：2017-06-26

Applicant: QUALCOMM INCORPORATED ,  HOMCHAUDHURI, Sandip ,  YENGANTI, Pradeep Kumar ,  XIAO, Yongchun ,  RAISSINIA, Alireza ,  TAO, Jian

Inventor： HOMCHAUDHURI, Sandip ,  YENGANTI, Pradeep Kumar ,  XIAO, Yongchun ,  RAISSINIA, Alireza ,  TAO, Jian

IPC: H04W52/02

Abstract: Methods, systems, and devices for wireless communication are described. One method may include communicating with an access point (AP) during awake intervals in which the wireless device is in an awake mode, determining a congestion level associated with a radio frequency (RF) spectrum band, and determining, for an awake interval, an inactivity timeout (ITO) interval for the wireless device to remain in the awake mode based on an identified RF spectrum band and the determined congestion level used by the wireless device to communicate with the AP. A second method may include polling an AP during a delivery traffic indication message (DTIM) period, and modifying timing for the station to poll the AP based on identifying that a trigger condition has been satisfied based on a determination that at least one null data message has been received from the AP, or a predetermined threshold number of polls have timed out.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 一种方法可以包括在无线设备处于苏醒模式的清醒间隔期间与接入点（AP）进行通信，确定与射频（RF）频谱带相关联的拥塞等级，以及针对清醒间隔确定 基于所识别的RF频谱带和由所述无线设备与所述AP进行通信所使用的所确定的拥塞等级，使所述无线设备保持在所述唤醒模式中的非活动超时（ITO）间隔。 第二种方法可以包括：在传递业务指示消息（DTIM）时段期间轮询AP，以及基于确定满足触发条件，基于确定至少一个空数据消息 已经从AP收到，或预定的阈值数量的民意调查超时。

公开(公告)号：WO2017210546A1

公开(公告)日：2017-12-07

申请号：PCT/US2017/035664

申请日：2017-06-02

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  YENGANTI, Pradeep Kumar ,  KUPPA, Srikant ,  JIA, Zhanfeng ,  ZHANG, Ning ,  GIDVANI, Ravi ,  THANDAVESWARAN, Subramania Sharma ,  KONDA, Ravi

IPC: H04W72/04 ,  H04W74/00 ,  H04W84/12 ,  H04W72/06 ,  H04W28/18

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.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 能够支持多链配置模式的无线设备（例如，接入点或站）可以监视无线信道上的业务。 基于监控，无线设备可以确定指示通信条件的度量的一系列值。 度量可以是分组速率，信道拥塞或信号强度。 无线设备可以基于该度量的一系列值来动态地选择要在其中操作的所支持的链式配置模式之一。 在一些情况下，无线设备可以基于该一系列值计算该度量的值，并将该度量的值与预定阈值进行比较。 在这种情况下，链式配置模式的选择可以基于比较结果。 在一些示例中，可以使用一个或多个度量。

公开(公告)号：WO2017007726A1

公开(公告)日：2017-01-12

申请号：PCT/US2016/040830

申请日：2016-07-01

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  HUANG, Xiaolong ,  YENGANTI, Pradeep, Kumar ,  KATAR, Srinivas

IPC: H04L12/801 ,  H04W24/00 ,  H04W36/08 ,  H04W36/30

CPC classification number: H04W24/08 ,  H04L47/12 ,  H04W28/0284 ,  H04W36/0083 ,  H04W36/08 ,  H04W36/22 ,  H04W36/30 ,  H04W40/12 ,  H04W72/0486 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/34

Abstract: Methods, systems, and devices are described for wireless communications. A device may utilize enhanced roaming techniques to identify a candidate channel for roaming. In one example, a device determines whether a candidate channel is congested by calculating a congestion metric associated with traffic over the shared channel. In some examples, the congestion metric is calculated based at least in part on an amount of energy measured over the candidate. For instance, the calculated congestion metric can be an instantaneous congestion level measured during a CCA. The device may then determine whether to roam to the candidate channel based at least in part on the calculated congestion metric.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 设备可以利用增强的漫游技术来识别用于漫游的候选信道。 在一个示例中，设备通过计算与共享信道上的业务相关联的拥塞度量来确定候选信道是否拥塞。 在一些示例中，至少部分地基于在候选者上测量的能量的量来计算拥塞度量。 例如，计算的拥塞度量可以是在CCA期间测量的瞬时拥塞水平。 然后，设备可以至少部分地基于所计算的拥塞度量来确定是否漫游到候选信道。

公开(公告)号：WO2016195815A1

公开(公告)日：2016-12-08

申请号：PCT/US2016/026922

申请日：2016-04-11

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  RAO, Anil, Satyanarayana ,  EHSAN, Navid ,  YENGANTI, Pradeep Kumar ,  RAISSINIA, Alireza ,  JONES, Vincent, Knowles

IPC: H04W88/10 ,  H04W88/04 ,  H04W52/02 ,  H04W76/02

CPC classification number: H04W76/15 ,  H04W52/0225 ,  H04W52/028 ,  H04W68/005 ,  H04W76/12 ,  H04W76/19 ,  H04W76/34 ,  H04W88/16 ,  H04W88/182 ,  Y02D70/00 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/21 ,  Y02D70/23

Abstract: Methods, systems, and devices are described for wireless communication. A device (215) with multiple radios (R1, R2) may establish a wireless local area network (WLAN) connection (204) with a multi-radio gateway (210, i.e., a multiPHY gateway) and a wide area network (WAN) connection (202) with a base station (105-a). The multi-radio device (215) may receive a proxy capability indication from the multi-radio gateway (210) and may transmit connection information relating to the second wireless connection (202). The multi-radio device (215) may then establish a tunnel to the base station utilizing a proxy entity within the multi-radio gateway (210) and close a physical (PHY) connection of the second wireless connection (202) in order to save power. The multi-radio gateway (210) may receive messages (e.g., paging, broadcast, or multicast messages) from the base station (105-a) on behalf of the multi-radio device (215) using the proxy entity, and tunnel the messages through to the multi-radio device (215) using the WLAN wireless connection (204).

Abstract translation: 描述了用于无线通信的方法，系统和设备。 具有多个无线电设备（R1，R2）的设备（215）可以利用多无线网关（210，即多PHY网关）和广域网（WAN）建立无线局域网（WLAN）连接（204） 连接（202）与基站（105-a）。 多无线电设备（215）可以从多无线电网关（210）接收代理能力指示，并且可以发送与第二无线连接（202）有关的连接信息。 然后，多无线电设备（215）可以利用多无线电网关（210）内的代理实体建立到基站的隧道，并关闭第二无线连接（202）的物理（PHY）连接，以便保存 功率。 多无线电网关（210）可以使用代理实体代表多无线电设备（215）从基站（105-a）接收消息（例如，寻呼，广播或多播消息），并且将 使用WLAN无线连接（204）向多个无线电设备（215）发送消息。

公开(公告)号：WO2016183293A1

公开(公告)日：2016-11-17

申请号：PCT/US2016/032035

申请日：2016-05-12

Applicant: QUALCOMM INCORPORATED

Inventor： JIA, Zhanfeng ,  CHO, James ,  KUMAR, Sumeet ,  HOMCHAUDHURI, Sandip ,  O'DONNELL, Ian ,  ZHANG, Ning ,  RAISSINIA, Alireza

IPC: H04W52/02 ,  H04W72/12

CPC classification number: H04W28/0289 ,  H04L5/0007 ,  H04W52/0219 ,  H04W52/0235 ,  H04W72/1263 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

Abstract: Apparatuses and methods in a wireless local area network are disclosed for delivering queued downlink (DL) data from an access point (AP 110) to a plurality of wireless stations (STAs). The AP 110 determines, for each of the plurality of STAs, a presence of a corresponding set of queued DL data, transmits a beacon frame 510 identifying which of the plurality of STAs has queued DL data, and transmits, to each of the identified STAs, permission 520 to request delivery of queued DL data. Next, AP 110 receives, from each of the identified STAs, a request 530 for delivery of the queued DL data. Then, AP 110 concurrently transmits, to each of the identified STAs, the corresponding set of queued DL data 540. The AP 110 preferably uses power save (PS) trigger frames 520 to schedule concurrent DL data transmissions to the plurality of STAs. By using PS trigger frames 520, the plurality of STAs does not need to contend with each other for medium access to request delivery of queued DL data. Instead, a number of STAs that receive the PS trigger frame 520 may concurrently transmit requests 530 for delivery of the queued DL data without contending with each other for medium access, thereby reducing delays associated with medium access contention operations. Upon receiving the requests 530, the AP 110 may concurrently transmit queued DL data 540 to multiple STAs using OFDMA communications or multi-user multiple-input multiple-output (MU-MIMO) communications. ln an alternative embodiment, the AP's permission and the STA's request are implicit. ln this case, the AP 110 and the receiving STA5 exchange PS-Trigger capabilities and/or negotiate a number of PS-Trigger parameters prior to the delivery of queued DL data from the AP 110 to the receiving STA5. For at least some implementations, the AP 110 may selectively use PS-Trigger frames to schedule delivery of queued DL data based on a level of congestion on the shared wireless medium. The STAs may indicate their PS-Trigger frame capabilities in any suitable manner, for example in an association request. The WLAN may be formed by a plurality of Wi-Fi access points that may operate according to the IEEE 802.11 family of standards.

Abstract translation: 公开了一种无线局域网中的装置和方法，用于将排队的下行链路（DL）数据从接入点（AP 110）传送到多个无线站（STA）。 AP 110针对多个STA中的每一个确定对应的一组排队的DL数据的存在，发送标识多个STA中的哪一个已经排队了DL数据的信标帧510，并将其发送到每个所识别的STA ，许可520请求传送排队的DL数据。 接下来，AP 110从每个所识别的STA接收用于传送排队的DL数据的请求530。 然后，AP 110向所标识的STA中的每一个同时发送对应的一组排队的DL数据540.AP 110优选地使用省电（PS）触发帧520来调度对多个STA的并发DL数据传输。 通过使用PS触发帧520，多个STA不需要彼此竞争以进行媒体访问以请求传送排队的DL数据。 相反，接收PS触发帧520的多个STA可以同时发送用于传送排队的DL数据的请求530，而不相互竞争用于媒体访问，从而减少与媒体访问争用操作相关联的延迟。 在接收到请求530时，AP 110可以使用OFDMA通信或多用户多输入多输出（MU-MIMO）通信同时将排队的DL数据540发送到多个STA。 在替代实施例中，AP的许可和STA的请求是隐含的。 在这种情况下，AP 110和接收STA5在从AP 110向接收STA5发送排队的DL数据之前交换PS触发能力和/或协商多个PS触发器参数。 对于至少一些实施方式，AP 110可以基于共享无线介质上的拥塞级别选择性地使用PS触发器帧来调度排队的DL数据的传送。 STA可以以任何合适的方式来指示它们的PS触发帧能力，例如在关联请求中。 WLAN可以由可以根据IEEE 802.11系列标准操作的多个Wi-Fi接入点形成。