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公开(公告)号：WO2022188137A1
公开(公告)日：2022-09-15
申请号：PCT/CN2021/080417
申请日：2021-03-12
Applicant: QUALCOMM INCORPORATED , ZHANG, Yangjun , YANG, Lin , YANG, Yusheng , HOMCHAUDHURI, Sandip , CHO, James Simon , RAISSINIA, Alireza
Inventor： ZHANG, Yangjun , YANG, Lin , YANG, Yusheng , HOMCHAUDHURI, Sandip , CHO, James Simon , RAISSINIA, Alireza
Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a transmitter may detect at least one distance between the transmitter and a receiver. The transmitter may transmit, to the receiver, information using a selected band of a wide band or a narrow band, where the selected band is based at least in part on the at least one distance. Similarly, in some aspects, a receiver may detect at least one distance between the receiver and a transmitter. The receiver may receive, from the transmitter, information using a selected band of a wide band or a narrow band, where the selected band is based at least in part on the at least one distance. Numerous other aspects are described.
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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.
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公开(公告)号：WO2018126377A1
公开(公告)日：2018-07-12
申请号：PCT/CN2017/070232
申请日：2017-01-05
Applicant: QUALCOMM INCORPORATED , HOMCHAUDHURI, Sandip , TAO, Jian , XIAO, Yongchun , MARWAH, Gurpreet , YENGANTI, Pradeep Kumar , GAJA, Ajay Kumar
Inventor： HOMCHAUDHURI, Sandip , TAO, Jian , XIAO, Yongchun , MARWAH, Gurpreet , YENGANTI, Pradeep Kumar , GAJA, Ajay Kumar
IPC: H04W52/02
CPC classification number: H04W52/0216 , H04W52/0245 , Y02D70/00 , Y02D70/142
Abstract: A method, an apparatus, and a computer-readable medium for wireless communication are provided. The apparatus is configured to receive a traffic indication map (TIM) from an access point (AP). The apparatus is configured to transmit, in a network sleep state, a predetermined number of power-save (PS) polls to the AP based on the TIM. The apparatus is configured to receive, in the network sleep state, one or more data packets from the AP in response to each of the predetermined number of PS polls.
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Patent Agency Ranking
公开(公告)号：WO2020019156A1
公开(公告)日：2020-01-30
申请号：PCT/CN2018/096799
申请日：2018-07-24
Applicant: QUALCOMM INCORPORATED , HOMCHAUDHURI, Sandip , VEERASHETTY, Pavankumar , JONES, Vincent Knowles IV , KATAR, Srinivas , TAO, Jian , JAMMULA, Rahul
Inventor： HOMCHAUDHURI, Sandip , VEERASHETTY, Pavankumar , JONES, Vincent Knowles IV , KATAR, Srinivas , TAO, Jian , JAMMULA, Rahul
IPC: H04L1/00
Abstract: The present disclosure provides techniques for rate adaptation under congestion and latency constraints. The approaches described herein focus on aspects of latency, reliability, and power consumption instead of the traditional aspect of throughput. In an example, a method for rate adaptation is disclosed. The method may include determining whether to transmit a new packet or a retry packet. The method may also include reducing a maximum rate for a rate search in response to determining to transmit the retry packet. The method may further include transmitting the retry packet based on the reduced maximum rate.
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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。
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公开(公告)号：WO2022077826A1
公开(公告)日：2022-04-21
申请号：PCT/CN2021/077381
申请日：2021-02-23
Applicant: QUALCOMM INCORPORATED , HOMCHAUDHURI, Sandip , RAISSINIA, Alireza , DEL PRADO PAVON, Javier , DAI, Shuibing , LI, Zhao , PHOGAT, Vikram , BASARALU SUBRAMANYA, Prasanna
Inventor： HOMCHAUDHURI, Sandip , RAISSINIA, Alireza , DEL PRADO PAVON, Javier , DAI, Shuibing , LI, Zhao , PHOGAT, Vikram , BASARALU SUBRAMANYA, Prasanna
Abstract: This disclosure provides methods, devices, and systems for performing passive scanning operations on one or more wireless channels. In some implementations, a wireless communication device configures an off-channel scan time and a passive scanning period for passive scanning operations based on latency requirements of a low-latency application, and selects a home channel dwell time for the passive scanning operations. The wireless communication device may perform the passive scanning operation by alternating between listening for beacon frames on one or more second wireless channels for the configured off-channel scan time and dwelling on a home channel for the selected home channel dwell time during a first portion of the configured scanning period. The wireless communication device also may listen for beacon frames on the one or more second wireless channels during a second portion of the configured scanning period that is defined by the selected home channel dwell time.
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公开(公告)号：WO2017219352A1
公开(公告)日：2017-12-28
申请号：PCT/CN2016/087054
申请日：2016-06-24
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.
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8.发明申请REDUCING POWER CONSUMPTION IN WIRELESS NETWORK STATIONS BY OPTIMIZING CONTENTION PERIOD OVERHEAD WITH STATION GROUPING, PROXY CSMA, AND TIM MONITORING 审中-公开通过优化站点分组，代理CSMA和TIM监控的内容期限，在无线网络站中降低功耗
公开(公告)号：WO2013074193A1
公开(公告)日：2013-05-23
申请号：PCT/US2012/055252
申请日：2012-09-13
Applicant: QUALCOMM Incorporated , HOMCHAUDHURI, Sandip , NAGARAJAN, Vinod , RAJAGOPALAN, Anand , JAYARAMAN, Arunkumar , ZHU, Yi , JIA, Zhanfeng
Inventor： HOMCHAUDHURI, Sandip , NAGARAJAN, Vinod , RAJAGOPALAN, Anand , JAYARAMAN, Arunkumar , ZHU, Yi , JIA, Zhanfeng
CPC classification number: H04W52/0206 , H04W52/0216 , H04W52/0219 , H04W52/0222 , H04W52/0258 , H04W52/0277 , H04W74/006 , Y02D70/00 , Y02D70/142 , Y02D70/144 , Y02D70/146 , Y02D70/162
Abstract: A method of saving power in a wireless network can include determining a plurality of stations associated with an AP. The AP can create station groups using group selection logic. Notably, the group selection logic is transparent to the plurality of stations. A plurality of TIMs can then be sent, each TIM allowing only one station group access to a channel during a predetermined time interval, such as a beacon interval. In another method, a station can determine its sleep duration based on at least one of first information from the TIM to generate random sleep duration, second information regarding previous operation of the station, and third information regarding a status of the station. The first, second, and third information can include the number of stations associated with the AP and having buffered data based on the TIM, historical collisions, and power status.
Abstract translation: 在无线网络中节省功率的方法可以包括确定与AP相关联的多个站。 AP可以使用组选择逻辑创建站组。 值得注意的是，组选择逻辑对于多个站是透明的。 然后可以发送多个TIM，每个TIM在预定时间间隔（例如信标间隔）期间仅允许一个站组访问信道。 在另一种方法中，站可以基于来自TIM的第一信息中的至少一个来确定其睡眠持续时间以产生随机睡眠持续时间，关于站的先前操作的第二信息以及关于站的状态的第三信息。 第一，第二和第三信息可以包括与AP相关联的站的数量，并且具有基于TIM，历史冲突和电力状态的缓冲数据。
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