公开(公告)号：US20150098374A1

公开(公告)日：2015-04-09

申请号：US14045443

申请日：2013-10-03

Applicant: QUALCOMM Incorporated

Inventor： Sandip Homchaudhuri ,  Pradeep Baliganapalli Nagaraju ,  Nitin Ashok Changlani ,  Jason Alexander Young ,  Arunkumar Jayaraman

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：US20160088567A1

公开(公告)日：2016-03-24

申请号：US14491936

申请日：2014-09-19

Applicant: QUALCOMM Incorporated

Inventor： Sandip HomChaudhuri ,  Fnu Rajkumar Samuel ,  Nitin Ashok Changlani ,  Arunkumar Jayaraman ,  Pradeep Baliganapalli Nagaraju ,  Sumeet Kumar ,  Lian Chen ,  James Simon Cho

IPC: H04W52/02 ,  H04L12/807 ,  H04B17/30

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：US09167622B2

公开(公告)日：2015-10-20

申请号：US13898835

申请日：2013-05-21

Applicant: QUALCOMM Incorporated

Inventor： Sandip Homchaudhuri ,  Chandramouli Ganapathy ,  Guido Robert Frederiks ,  Alireza Raissinia ,  Nitin A Changlani ,  Arunkumar Jayaraman ,  Badrisrinivasan Sampathkumar ,  Paul Husted

IPC: H04W88/06 ,  H04W76/02 ,  H04W36/14 ,  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：US09072050B2

公开(公告)日：2015-06-30

申请号：US14045443

申请日：2013-10-03

Applicant: QUALCOMM Incorporated

Inventor： Sandip Homchaudhuri ,  Pradeep Baliganapalli Nagaraju ,  Nitin Ashok Changlani ,  Jason Alexander Young ,  Arunkumar Jayaraman

IPC: H04J1/16 ,  H04W52/02 ,  H04W28/02

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：US20140341098A1

公开(公告)日：2014-11-20

申请号：US14277613

申请日：2014-05-14

Applicant: QUALCOMM Incorporated

Inventor： James Simon Cho ,  Arunkumar Jayaraman ,  Guido Robert Frederiks ,  Zhanfeng Jia ,  Shu Du ,  Alireza Raissinia ,  Jibing Wang ,  Sandip HomChaudhuri

IPC: H04W52/02 ,  H04L1/08

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。