公开(公告)号：WO2017220037A1

公开(公告)日：2017-12-28

申请号：PCT/CN2017/090078

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.

公开(公告)号：WO2017172785A1

公开(公告)日：2017-10-05

申请号：PCT/US2017/024563

申请日：2017-03-28

Applicant: QUALCOMM INCORPORATED

Inventor： ASTERJADHI, Alfred ,  CHERIAN, George ,  MERLIN, Simone ,  HOMCHAUDHURI, Sandip ,  JIA, Zhanfeng ,  KUMAR, Sumeet ,  YENGANTI, Pradeep Kumar

IPC: H04W72/12 ,  H04W52/02 ,  H04W56/00 ,  H04W74/06 ,  H04W84/12

Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. In one aspect, an apparatus is configured to receive information indicating a wake time period from a STA and use the received wake time period to schedule communication with the STA. The apparatus may use the received wake time period to determine a target transmission time for transmitting a trigger frame to the STA. The apparatus may transmit a beacon to the STA and then transmit the trigger frame to the STA at the target transmission time following the beacon. The apparatus may also indicate an offset from the beacon that the apparatus will use for communication with the STA based on the wake time period of the STA.

Abstract translation: 提供了一种用于无线通信的方法，装置和计算机可读介质。 在一个方面，一种装置被配置为从STA接收指示唤醒时间段的信息，并使用所接收的唤醒时间段来调度与STA的通信。 该设备可以使用所接收的唤醒时间段来确定用于向STA发送触发帧的目标传输时间。 该装置可以向STA发送信标，然后在信标之后的目标传输时间向STA发送触发帧。 该装置还可以指示来自该装置将用于基于STA的唤醒时间周期与STA通信的信标的偏移量。

公开(公告)号：WO2017030718A1

公开(公告)日：2017-02-23

申请号：PCT/US2016/042934

申请日：2016-07-19

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  YENGANTI, Pradeep Kumar

IPC: H04W48/16

CPC classification number: H04W72/0446 ,  H04W24/08 ,  H04W28/0284 ,  H04W48/16

Abstract: Methods, systems, and apparatuses are described for adaptive dwell time for scan procedures. An access terminal (AT) may identify a scan period associated with performing a scan procedure on a first channel. The AT may analyze a channel congestion metric during the scan period and determine based, at least in part, on the channel congestion metric whether to exit the first channel. The AT may provide a probe request for transmission on a second channel during a remaining portion of the scan period based on the determination to exit the first channel.

Abstract translation: 描述用于扫描程序的自适应停留时间的方法，系统和装置。 接入终端（AT）可以识别与在第一信道上执行扫描过程相关联的扫描周期。 AT可以在扫描周期期间分析信道拥塞度量，并且至少部分地基于信道拥塞度量决定是否退出第一信道。 基于离开第一信道的确定，AT可以在扫描周期的剩余部分期间在第二信道上提供发送请求。

公开(公告)号：WO2016186795A1

公开(公告)日：2016-11-24

申请号：PCT/US2016/028774

申请日：2016-04-22

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  KUMAR, Sumeet ,  CHO, James, Simon

IPC: H04W52/54 ,  H04W52/08 ,  H04W52/36 ,  H04L1/00

CPC classification number: H04W52/08 ,  H04L1/0001 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/1671 ,  H04L5/0055 ,  H04L69/22 ,  H04W52/362 ,  H04W52/54

Abstract: Methods and apparatuses for providing closed-loop power control during a short inter-frame space (SIFS) burst are described herein. A method includes receiving feedback associated with transmit power used to transmit a first data packet in a SIFS burst. The method also includes adjusting at least the transmit power, or a modulation and coding scheme (MCS), or a combination thereof, used to transmit a second data packet of the SIFS burst based at least in part on the received feedback.

Abstract translation: 本文描述了在短帧间空间（SIFS）突发期间提供闭环功率控制的方法和装置。 一种方法包括接收与用于在SIFS突发中发送第一数据分组的发射功率相关联的反馈。 该方法还包括至少部分地基于所接收的反馈来调整用于至少部分地发送SIFS突发的第二数据分组的至少发射功率或调制和编码方案（MCS）或其组合。

公开(公告)号：WO2016183291A1

公开(公告)日：2016-11-17

申请号：PCT/US2016/032031

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: H04W52/0235 ,  H04B7/0413 ,  H04L5/0007 ,  H04W4/20 ,  H04W28/02 ,  H04W52/0219 ,  H04W72/1263 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22 ,  Y02D70/444

Abstract: Apparatuses and methods in a wireless local area network are disclosed for receiving, by a wireless station (STA), queued downlink (DL) data from an access point AP 110. A STA receives, from the AP 110, a beacon frame (510) indicating a presence of queued DL data for concurrent delivery to a plurality of STAs. The STAs receive permission (520) to request delivery of the queued DL data. The STAs each transmit, to the AP 110, a request (530) for delivery of the queued DL data based on the permission. The STA then receives the queued DL data (540) from the AP 110. 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 the requesting STAs, for example, using multiple access mechanisms. In some aspects, 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. In an alternative embodiment, the AP's permission and the STA's request are implicit. In this case, the AP 110 and the receiving STAs 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 STAs. 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，用于由无线站（STA）从接入点AP 110接收排队的下行链路（DL）数据.PCA从AP 110接收信标帧（510） 指示存在用于并发递送到多个STA的排队的DL数据。 STA接收许可（520）以请求传送排队的DL数据。 所述STA各自向所述AP 110发送用于基于所述许可来传送所述排队的DL数据的请求（530）。 STA然后从AP 110接收排队的DL数据（540）.AP 110优选地使用功率节省（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），而不会彼此争用以进行媒体访问，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可以例如使用多个接入机制同时将排队的DL数据（540）发送到请求STA。 在一些方面，AP 110可以使用OFDMA通信或多用户多输入多输出（MU-MIMO）通信来同时将排队的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STA在从AP 110向接收STA传送排队的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触发器帧能力，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。

公开(公告)号：WO2014194144A1

公开(公告)日：2014-12-04

申请号：PCT/US2014/040095

申请日：2014-05-29

Applicant: QUALCOMM INCORPORATED

Inventor： ALDANA, Carlos Horacio ,  HOMCHAUDHURI, Sandip ,  HE, Xin ,  ZHANG, Xiaoxin ,  SHUKLA, Ashish Kumar

IPC: H04W64/00 ,  H04W24/00

CPC classification number: H04L43/0864 ,  G01S5/00 ,  G01S13/767 ,  H04L5/005 ,  H04W4/043 ,  H04W4/30 ,  H04W24/00 ,  H04W64/00 ,  H04W72/082 ,  H04W76/10

Abstract: Disclosed are systems, methods and devices for obtaining round trip time measurements for use in location based services. In particular implementations, a fine timing measurement request message wirelessly transmitted by a first transceiver device to a second transceiver device may permit additional processing features in computing or applying a signal round trip time measurement. Such a signal round trip time measurement may be used in positioning operations.

Abstract translation: 公开了用于获得在基于位置的服务中使用的往返时间测量的系统，方法和设备。 在特定实施方式中，由第一收发器装置无线传输到第二收发器装置的精细定时测量请求消息可允许在计算或应用信号往返时间测量中的附加处理特征。 这种信号往返时间测量可用于定位操作。

公开(公告)号：WO2014183081A2

公开(公告)日：2014-11-13

申请号：PCT/US2014/037573

申请日：2014-05-09

Applicant: QUALCOMM INCORPORATED

Inventor： ZHANG, Xiaoxin ,  ALDANA, Carlos, Horacio ,  HOMCHAUDHURI, Sandip ,  CHO, James, Simon

CPC classification number: H04W64/003 ,  G01S5/0205 ,  H04W64/00

Abstract: This disclosure includes systems and methods for determining the location of each of a plurality of STAs of a WLAN where an AP measures the round-trip time (RTT) and the angle of arrival (AOA) to each STA from implicit packet exchange, such as data frame and ACK frame. The AP may then report the RTT and AOA measurements to each STA using a dedicated beacon information element (IE) which multicasts RTT and AOA measurements to the STAs. By employing an additional parameter, namely, angle of arrival AOA, a single AP may compute the two-dimensional location of each associated STA. Further, another beacon IE may multicast mapping of the AIDs to MAC addresses so that the associated STAs can understand such mapping for STAs in a network so that one STA may know the location of other STAs. Encryption may be employed to achieve privacy.

Abstract translation: 本公开包括用于确定WLAN的多个STA中的每一个的位置的系统和方法，其中AP从隐式分组交换测量到每个STA的往返时间（RTT）和到达角（AOA），例如 数据帧和ACK帧。 然后，AP可以使用将RTT和AOA测量多播到STA的专用信标信息元素（IE）向每个STA报告RTT和AOA测量。 通过采用附加参数，即到达角AOA，单个AP可以计算每个相关STA的二维位置。 此外，另一个信标IE可以将AID多播到MAC地址，使得相关联的STA可以理解网络中的STA的这种映射，使得一个STA可以知道其他STA的位置。 可以采用加密来实现隐私。

公开(公告)号：WO2014031682A1

公开(公告)日：2014-02-27

申请号：PCT/US2013/055855

申请日：2013-08-20

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  BEHNAMFAR, Firouz ,  RAISSINIA, Alireza ,  HUSTED, Paul

IPC: H04W72/12 ,  H04W72/02 ,  H04W88/06 ,  H04B1/10

CPC classification number: H04W72/1257 ,  H04W28/26 ,  H04W72/02 ,  H04W72/1278 ,  H04W88/06

Abstract: A user equipment (UE) uses information regarding the timing of scheduling mobile wireless services (MWS) RAT communications to improve MWS and wireless network connectivity (WCN) radio access technology coexistence. To allow sufficient time for an uplink grant to be received by the UE in advance of the scheduled uplink time, an uplink grant may be sent in advance of the scheduled uplink time. In some instances, the UE may receive an indication of scheduled uplink time of the MWS RAT via a physical layer communication. The UE may schedule communications of the WCN RAT based at least in part on the indication of future activity.

Abstract translation: 用户设备（UE）使用关于调度移动无线业务（MWS）RAT通信的定时的信息来改善MWS和无线网络连接（WCN）无线电接入技术共存。 为了在预定的上行链路时间之前允许UE接收上行链路许可的足够的时间，可以在调度的上行链路时间之前发送上行链路许可。 在一些情况下，UE可以经由物理层通信来接收MWS RAT的调度的上行链路时间的指示。 UE可以至少部分地基于未来活动的指示来安排WCN RAT的通信。

公开(公告)号：WO2014031344A1

公开(公告)日：2014-02-27

申请号：PCT/US2013/054012

申请日：2013-08-07

Applicant: QUALCOMM INCORPORATED

Inventor： BEHNAMFAR, Firouz ,  HOMCHAUDHURI, Sandip ,  HUSTED, Paul ,  RAISSINIA, Alireza ,  SUN, Qinfang

IPC: H04W16/14 ,  H04W72/12

CPC classification number: H04W72/1257 ,  H04W16/14 ,  H04W72/042 ,  H04W72/1215 ,  H04W72/1289

Abstract: A user equipment (UE) uses information regarding dynamic resource allocation in a mobile wireless service (MWS) radio access technology (RAT) to improve MWS and wireless connectivity network (WCN) RAT coexistence. The UE may receive an indication of time and frequency resources of future activity of the MWS RAT. The UE may schedule communications of the WCN RAT based at least in part on the indication of the time and frequency resources of the future activity.

Abstract translation: 用户设备（UE）使用关于移动无线服务（MWS）无线电接入技术（RAT）中的动态资源分配的信息来改善MWS和无线连接网络（WCN）RAT共存。 UE可以接收MWS RAT的未来活动的时间和频率资源的指示。 UE可以至少部分地基于未来活动的时间和频率资源的指示来安排WCN RAT的通信。

公开(公告)号：WO2022186929A1

公开(公告)日：2022-09-09

申请号：PCT/US2022/014528

申请日：2022-01-31

Applicant: QUALCOMM INCORPORATED

Inventor： XUE, Qi ,  KATAR, Srinivas ,  ZOU, Chao ,  GANGADHARAN, Naveen ,  NURANI KRISHNAN, Neelakantan ,  HOMCHAUDHURI, Sandip ,  HUANG, Xiaolong ,  ASHOK, Anish

IPC: H04W74/08

Abstract: This disclosure provides systems, methods and apparatus for asynchronous channel access control of a wireless system. In some aspects, a device may adjust the priority of one or more PPDUs and may perform other operations to ensure control of a wireless medium at certain times while still allowing for other devices to communicate on the wireless medium. For example, the device may adjust a backoff counter or one or more EDCA parameters to ensure obtaining control of the wireless medium to transmit a first PPDU of an application file. For one or more subsequent PPDUs of the application file, the device may again adjust a backoff counter or one or more EDCA parameters to allow other devices to obtain control of the wireless medium in certain scenarios (such as a second device to provide information back to the device or to otherwise transmit using the shared wireless medium).