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

IPC: H04W52/02 ,  H04W74/00 ,  H04W74/08

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。

公开(公告)号：WO2016043891A1

公开(公告)日：2016-03-24

申请号：PCT/US2015/045472

申请日：2015-08-17

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  RAJKUMAR SAMUEL, Fnu ,  CHANGLANI, Nitin, Ashok ,  JAYARAMAN, Arunkumar ,  BALIGANAPALLI NAGARAJU, Pradeep ,  KUMAR, Sumeet ,  CHEN, Lian ,  CHO, James, Simon

IPC: H04W52/02

CPC classification number: H04W52/0274 ,  H04B17/30 ,  H04L47/27 ,  H04W28/02 ,  H04W52/0216 ,  H04W52/0238 ,  H04W52/0241 ,  H04W52/0245 ,  H04W72/12 ,  Y02D70/142 ,  Y02D70/22

Abstract: Methods, systems, and devices are described for adapting blind reception duration for range and congestion. A wireless station may measure channel conditions (e.g., range to an access point (AP) and channel congestion), and adjust one or more sleep timers based on the conditions. The sleep timers may each be associated with a window for reception of an expected transmission. If the transmission is not received in the window, the station may enter a sleep state to conserve power. In one example, a beacon miss timer is adjusted, and the expected wireless transmission is a delivery traffic indication message (DTIM). In another example, a content after beacon (CAB) timer is adjusted and the expected wireless transmission is the CAB. In some cases, the station may measure a delay for a number of beacons and determine the adjustment based on the delays.

Abstract translation: 描述了用于适应范围和拥塞的盲接收持续时间的方法，系统和设备。 无线站可以测量信道条件（例如，到接入点（AP）的范围和信道拥塞），并且基于条件来调整一个或多个睡眠定时器。 睡眠定时器可以各自与用于接收预期传输的窗口相关联。 如果窗口中没有接收到传输，则站可能进入睡眠状态以节省电力。 在一个示例中，调整信标缺失定时器，并且期望的无线传输是传送业务指示消息（DTIM）。 在另一示例中，调整了信标（CAB）定时器之后的内容，并且预期的无线传输是CAB。 在某些情况下，车站可以测量多个信标的延迟，并根据延迟确定调整。

公开(公告)号：WO2014186522A1

公开(公告)日：2014-11-20

申请号：PCT/US2014/038097

申请日：2014-05-15

Applicant: QUALCOMM INCORPORATED

Inventor： CHO, James, Simon ,  JAYARAMAN, Arunkumar ,  FREDERIKS, Guido, Robert ,  JIA, Zhanfeng ,  DU, Shu ,  RAISSINIA, Alireza ,  WANG, Jibing ,  HOMCHAUDHURI, Sandip

IPC: H04W52/02

CPC classification number: H04W52/0238 ,  H04L1/08 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0235 ,  H04W72/02 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system through efficient transmissions and acknowledgements of information between an AP and a station. The time between a determination by a station to enter a power saving mode and entering network sleep mode by the station may be reduced through a transmission, by an AP, of an MPDU to the station successive to an SIFS after transmission of an acknowledgement to the station of a PS-Poll frame from the station. The time to enter a power saving mode by a station may also be reduced through transmission of A-MPDUs in which a last MPDU of the A-MPDU has an indicator bit cleared to indicate no additional data is to be transmitted. An AP may prevent a retransmission of an MPDU to the station in the absence of an acknowledgement from the station, to further enhance efficiency.

Abstract translation: 通过在AP和站之间的有效传输和确认信息来描述无线通信系统中的功率节省的方法，系统和设备。 由站点确定进入省电模式和进入网络休眠模式之间的时间可以通过由AP发送到SIFS之后的站点的MPDU在发送确认到 来自电台的PS-Poll帧的电台。 站点进入省电模式的时间也可以通过发送A-MPDU来减少，其中A-MPDU的最后MPDU具有清除的指示符比特以指示不需要发送附加数据。 在没有来自台站的确认的情况下，AP可以防止向台站重传MPDU，以进一步提高效率。

公开(公告)号：WO2013181037A1

公开(公告)日：2013-12-05

申请号：PCT/US2013/042187

申请日：2013-05-22

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  GANAPATHY, Chinnappa Kelapanda ,  FREDERIKS, Guido Robert ,  RAISSINIA, Alireza ,  CHANGLANI, Nitin A. ,  JAYARAMAN, Arunkumar ,  SAMPATHKUMAR, Badri Srinivasan

IPC: H04W36/14 ,  H04W88/06 ,  H04W24/00

CPC classification number: H04W88/06 ,  H04W24/00 ,  H04W36/14 ,  H04W76/16

Abstract: Systems and methods are provided for enhancing the concurrency of a wireless device operating in multiple network contexts. By identifying opportunity instants that may exist within the normal exchange of information by a device having a single physical transceiver in a first network context, tasks for a second network context may be performed using the transceiver with minimal impact on performance related to the first network context and preferably in complete transparence to the first network context.

Abstract translation: 提供了用于增强在多个网络环境中操作的无线设备的并发性的系统和方法。 通过识别在第一网络环境中具有单个物理收发器的设备在正常信息交换中可能存在的机会时刻，可以使用收发器执行用于第二网络上下文的任务，对与第一网络上下文相关的性能影响最小 并且优选地完全透明到第一网络上下文。

公开(公告)号：EP2781126A1

公开(公告)日：2014-09-24

申请号：EP12766539.6

申请日：2012-09-13

Applicant: Qualcomm Incorporated

Inventor： HOMCHAUDHURI, Sandip ,  NAGARAJAN, Vinod ,  RAJAGOPALAN, Anand ,  JAYARAMAN, Arunkumar ,  ZHU, Yi ,  JIA, Zhanfeng

IPC: H04W52/02 ,  H04W74/00 ,  H04W74/08

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.

公开(公告)号：WO2015148180A1

公开(公告)日：2015-10-01

申请号：PCT/US2015/020895

申请日：2015-03-17

Applicant: QUALCOMM INCORPORATED

Inventor： DU, Shu ,  DUVVURI, Srinivasa, Kumar ,  CHO, James, Simon ,  MEHTA, Vipin, Kumar ,  FREDERIKS, Guido, Robert ,  JAYARAMAN, Arunkumar ,  SMITH, Matthew, Daniel

IPC: H04W28/06

CPC classification number: H04W28/14 ,  H04L45/245 ,  H04W28/06 ,  H04W28/065 ,  H04W84/12 ,  H04W92/10

Abstract: Methods, systems, and devices are described for establishing a virtual communication link including at least a first and second physical link between two devices. A single virtual packet queue of a device may receive one or more data packets to be transmitted via the virtual communication link. The single virtual packet queue may attach a virtual sequence number to each of the one or more data packets and send the one or more data packets to one or more of the first or the second physical link according to the assigned virtual sequence numbers. The one or more packets may then be communicated via the first and/or second physical links according to link specific sequence numbers, such as medium access control (MAC) sequence numbers, assigned to the one or more data packets by the first and/or second physical links.

Abstract translation: 描述了用于建立包括两个设备之间的至少第一和第二物理链路的虚拟通信链路的方法，系统和设备。 设备的单个虚拟分组队列可以接收经由虚拟通信链路发送的一个或多个数据分组。 单个虚拟分组队列可以将虚拟序列号附加到一个或多个数据分组中的每一个，并且根据所分配的虚拟序列号将一个或多个数据分组发送到第一或第二物理链路中的一个或多个。 然后可以经由第一和/或第二物理链路根据链路特定序列号来传送一个或多个分组，例如通过第一和/或第二物理链路分配给一个或多个数据分组的媒体访问控制（MAC）序列号， 第二物理链接。

公开(公告)号：WO2015050742A1

公开(公告)日：2015-04-09

申请号：PCT/US2014/056962

申请日：2014-09-23

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  BALIGANAPALLI NAGARAJU, Pradeep ,  CHANGLANI, Nitin, Ashok ,  YOUNG, Jason, Alexander ,  JAYARAMAN, Arunkumar

IPC: H04W52/02

CPC classification number: H04W52/0238 ,  H04W28/0284 ,  H04W52/0216 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146

Abstract: Power saving for wireless communication devices by adjusting the amount of time, after a last transmission/reception of data, that the device remains in an awake mode listening for more data before the device enters a sleep mode. This time period may be referred to as inactivity time interval or inactivity timeout (ITO). The described features may be employed to improve power savings by taking metrics of channel congestion into account for determining the ITO. The appropriate ITO may be determined to be commensurate with ongoing transmission and/or reception activity. Because error may occur in estimating channel congestion and/or transmission/reception activity, latency bounds based on estimation errors may be managed by classifying the operational mode into multiple regions and employing techniques for mitigating error in congestion estimation based at least in part on the operational mode.

Abstract translation: 通过在设备进入休眠模式之后，通过调整数据的最后一次发送/接收之后的时间量，使设备保持在唤醒模式中监听更多的数据，从而为无线通信设备省电。 该时间段可以称为不活动时间间隔或不活动超时（ITO）。 所描述的特征可以用于通过考虑信道拥塞的度量来确定ITO来提高功率节省。 可以确定适当的ITO与正在进行的传输和/或接收活动相当。 由于在估计信道拥塞和/或发送/接收活动中可能发生错误，所以可以通过将操作模式分类为多个区域并采用用于减轻拥塞估计中的错误的技术来管理基于估计误差的等待时间范围，所述技术至少部分地基于操作 模式。

公开(公告)号：WO2014186520A1

公开(公告)日：2014-11-20

申请号：PCT/US2014/038095

申请日：2014-05-15

Applicant: QUALCOMM INCORPORATED

Inventor： CHO, James, Simon ,  JAYARAMAN, Arunkumar ,  FREDERIKS, Guido, Robert ,  JIA, Zhanfeng ,  DU, Shu ,  RAISSINIA, Alireza ,  WANG, Jibing ,  HOMCHAUDHURI, Sandip

IPC: H04W52/02

CPC classification number: H04W52/0238 ,  H04L1/08 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0235 ,  H04W72/02 ,  H04W84/12 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/22

Abstract: Methods, systems, and devices are described for power conservation in a wireless communications system through efficient transmissions and acknowledgements of information between an AP and a station. The time between a determination by a station to enter a power saving mode and entering network sleep mode by the station may be reduced through a transmission, by an AP, of an MPDU to the station successive to an SIFS after transmission of an acknowledgement to the station of a PS-Poll frame from the station. The time to enter a power saving mode by a station may also be reduced through transmission of A-MPDUs in which a last MPDU of the A-MPDU has an indicator bit cleared to indicate no additional data is to be transmitted. An AP may prevent a retransmission of an MPDU to the station in the absence of an acknowledgement from the station, to further enhance efficiency.

Abstract translation: 描述了无线通信系统中的功率节省的方法，系统和设备，通过AP和站之间的有效传输和信息确认。 在站点确定进入节电模式并进入网络睡眠模式之间的时间可以通过AP向MPI发送确认之后的MPDU向连续的SIFS的站传输而减少 站点的PS-Poll帧。 由站点进入省电模式的时间也可以通过A-MPDU的传输来减少，其中A-MPDU的最后一个MPDU被清除以指示不发送附加数据。 在没有来自站的确认的情况下，AP可以阻止对站的MPDU的重传，以进一步提高效率。

公开(公告)号：WO2014165605A1

公开(公告)日：2014-10-09

申请号：PCT/US2014/032699

申请日：2014-04-02

Applicant: QUALCOMM INCORPORATED

Inventor： HOMCHAUDHURI, Sandip ,  DUNCAN, Joseph ,  ZHANG, Xiaoru ,  LEE, Meelan ,  JAYARAMAN, Arunkumar ,  LIN, Derrick, Chu ,  MEHTA, Srenik

IPC: G06F1/32 ,  H04W52/02

CPC classification number: H04W52/0229 ,  G06F1/3206 ,  G06F1/324 ,  G06F1/3296 ,  H04W52/0216 ,  H04W52/029 ,  Y02D10/126 ,  Y02D10/172 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/24

Abstract: Methods and apparatuses are described in which dynamic voltage and frequency scaling may be used to save power when processing packets in a wireless communications device. In some cases, inframe detection may allow the device to determine whether to transition from a first (e.g., lower) voltage level to a second (e.g., higher) voltage level to process one or more packets of a received frame. For some packet types the first voltage level may be maintained. In other cases, the device may determine a bandwidth to use from among multiple bandwidths supported by the device. The bandwidth may be determined based on channel conditions. A voltage level may be identified that corresponds to the determined bandwidth and a processing voltage may be scaled to the identified voltage level. The device may be configured to operate in wireless local area network (WLAN) and/or in a cellular network (e.g., LTE).

Abstract translation: 描述了在无线通信设备中处理分组时可以使用动态电压和频率缩放来节省功率的方法和装置。 在一些情况下，帧内检测可以允许设备确定是否从第一（例如较低）电压电平转换到第二（例如较高）电压电平以处理接收帧的一个或多个分组。 对于一些分组类型，可以维持第一电压电平。 在其他情况下，设备可以从设备支持的多个带宽中确定要使用的带宽。 可以基于信道条件来确定带宽。 可以识别对应于所确定的带宽的电压电平，并且可以将处理电压缩放到所识别的电压电平。 该设备可以被配置为在无线局域网（WLAN）和/或蜂窝网络（例如，LTE）中操作。

公开(公告)号：EP3053385A1

公开(公告)日：2016-08-10

申请号：EP14783723.1

申请日：2014-09-23

Applicant: Qualcomm Incorporated

Inventor： HOMCHAUDHURI, Sandip ,  BALIGANAPALLI NAGARAJU, Pradeep ,  CHANGLANI, Nitin Ashok ,  YOUNG, Jason Alexander ,  JAYARAMAN, Arunkumar

IPC: H04W52/02

CPC classification number: H04W52/0238 ,  H04W28/0284 ,  H04W52/0216 ,  Y02D70/1242 ,  Y02D70/1262 ,  Y02D70/1264 ,  Y02D70/142 ,  Y02D70/146

Abstract: Power saving for wireless communication devices by adjusting the amount of time, after a last transmission/reception of data, that the device remains in an awake mode listening for more data before the device enters a sleep mode. This time period may be referred to as inactivity time interval or inactivity timeout (ITO). The described features may be employed to improve power savings by taking metrics of channel congestion into account for determining the ITO. The appropriate ITO may be determined to be commensurate with ongoing transmission and/or reception activity. Because error may occur in estimating channel congestion and/or transmission/reception activity, latency bounds based on estimation errors may be managed by classifying the operational mode into multiple regions and employing techniques for mitigating error in congestion estimation based at least in part on the operational mode.