公开(公告)号：US10159047B2

公开(公告)日：2018-12-18

申请号：US14715230

申请日：2015-05-18

Applicant: QUALCOMM Incorporated

Inventor： Sandip HomChaudhuri ,  Sumeet Kumar ,  James Simon Cho

IPC: H04W4/00 ,  H04W52/08 ,  H04W52/54 ,  H04L5/00 ,  H04L29/06 ,  H04L1/00 ,  H04L1/16 ,  H04W52/36

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.

公开(公告)号：US09929847B2

公开(公告)日：2018-03-27

申请号：US14978039

申请日：2015-12-22

Applicant: QUALCOMM Incorporated

Inventor： Alfred Asterjadhi ,  Simone Merlin ,  George Cherian ,  Santosh Paul Abraham ,  Gwendolyn Denise Barriac ,  Rahul Malik ,  Gang Ding ,  Guido Robert Frederiks ,  James Simon Cho

IPC: H04W4/00 ,  H04L5/00 ,  H04L1/16 ,  H04W72/04

CPC classification number: H04L5/0055 ,  H04L1/1614 ,  H04L1/1685 ,  H04W72/04

Abstract: Certain aspects of the present disclosure provide methods and apparatus for using a shortened block acknowledgement (BlockAck) frame capable of acknowledging fragments. Such a shortened BlockAck frame may include a bitmap field having a shorter length than that of a basic BlockAck frame in the IEEE 802.11 standard (i.e.,

公开(公告)号：US09867004B2

公开(公告)日：2018-01-09

申请号：US15080337

申请日：2016-03-24

Applicant: QUALCOMM Incorporated

Inventor： Carlos Horacio Aldana ,  Ning Zhang ,  James Simon Cho ,  Xiaoxin Zhang

IPC: H04W24/00 ,  H04W4/02 ,  H04W56/00 ,  H04L27/26 ,  G01S5/14

CPC classification number: H04W4/023 ,  G01S5/021 ,  G01S5/14 ,  G01S11/08 ,  G01S19/48 ,  H04L27/266 ,  H04W4/02 ,  H04W56/0015 ,  H04W56/0025

Abstract: Disclosed herein are techniques for range measurement between one or more wireless stations (STAs) and a first access point (AP). In various embodiments, the first AP may synchronize a clock of the first AP with clocks of one or more synchronized APs. The first AP may perform a synchronization session with the one or more STAs. The first AP may also transmit one or more Broadcast time-of-departure (TOD) frames to the one or more STAs. Each of the one or more Broadcast TOD frames may include a time of departure of a Broadcast TOD frame from the first AP. A second AP and a third AP of the one or more synchronized APs may also transmit one or more Broadcast TOD frames to the one or more STAs for range and/or position determination.

公开(公告)号：US09832730B2

公开(公告)日：2017-11-28

申请号：US14790576

申请日：2015-07-02

Applicant: QUALCOMM Incorporated

Inventor： Xiaoru Zhang ,  James Simon Cho ,  Tao-Fei Samuel Ng ,  Sreepathy Laxmanbabu Aida

IPC: H04W52/02 ,  H04W52/04 ,  G06F1/32 ,  H04B7/0452

CPC classification number: H04W52/04 ,  G06F1/3296 ,  H04B7/0452 ,  H04W52/0222 ,  H04W52/0225 ,  H04W52/028 ,  Y02D70/142

Abstract: A communication device receives at least a portion of a packet. Power is reduced to a subset of components of a communication device. The subset of components for which power is reduced is determined based, at least in part, on a length of the packet. The power is reduced for a time period based, at least in part, on the length of the packet.

公开(公告)号：US09820235B2

公开(公告)日：2017-11-14

申请号：US15209586

申请日：2016-07-13

Applicant: QUALCOMM Incorporated

Inventor： Xiaoru Zhang ,  James Simon Cho ,  Tao-Fei Samuel Ng ,  Sreepathy Laxmanbabu Aida

IPC: H04W52/04 ,  G06F1/32 ,  H04W52/02 ,  H04B7/0452

CPC classification number: H04W52/04 ,  G06F1/3296 ,  H04B7/0452 ,  H04W52/0222 ,  H04W52/0225 ,  H04W52/028 ,  Y02D70/142

Abstract: A method for reducing power consumption in a communication device. The method includes determining, by the communication device, that a packet transmitted on a communication medium is not intended for the communication device and estimating a length of the packet. If the length is greater than a first threshold but less than a second threshold, selecting a first group of components of the communication device to which to reduce power. If the length is greater than the second threshold, selecting a second group of components of the communication device to which to reduce power. The second group of components includes the first group of components. The method includes reducing power to the selected group of components.

公开(公告)号：US09813938B2

公开(公告)日：2017-11-07

申请号：US14326312

申请日：2014-07-08

Applicant: QUALCOMM Incorporated

Inventor： Simone Merlin ,  Amin Jafarian ,  Maarten Menzo Wentink ,  James Simon Cho ,  Gwendolyn Denise Barriac ,  Yan Zhou ,  Hemanth Sampath

IPC: H04W28/02 ,  H04W28/18 ,  H04W84/12

CPC classification number: H04W28/0268 ,  H04W28/18 ,  H04W84/12

Abstract: Systems and methods for dynamically adapting channel access or transmission parameters based upon an identified channel access parameter or previously used transmission parameter are disclosed. In an aspect, an electronic device for communication over a wireless network is disclosed. The electronic device comprises a processor configured to generate a message that identifies one rule of a plurality of rules. Each of the plurality of rules defines a process for adapting a value of a communication parameter based on an identified channel access parameter. Also, each of the plurality of rules provides a particular quality of service and a particular priority for communication with the electronic device. The electronic device further comprises a transceiver configured to transmit the message to a station.

公开(公告)号：US20170273100A1

公开(公告)日：2017-09-21

申请号：US15074552

申请日：2016-03-18

Applicant: QUALCOMM Incorporated

Inventor： Xiaolong Huang ,  Chao Zou ,  Srinivas Katar ,  Hao Zhu ,  James Simon Cho ,  Alireza Raissinia

IPC: H04W72/12 ,  H04W74/08

CPC classification number: H04W72/1263 ,  H04W72/1252 ,  H04W74/08 ,  H04W74/0808

Abstract: Methods, systems, and devices for wireless communication are described. An access point (AP) may win access to an unlicensed frequency channel for a transmission opportunity. For the transmission opportunity, the AP may dynamically schedule a duration of time to be used for uplink transmissions and a duration of time to be used for downlink transmissions. The schedule may be based on a comparison of values for a parameter monitored by the AP. The parameter may be monitored for uplink traffic and for downlink traffic. The parameter may indicate the latency experienced by each direction of traffic, or an intolerance of each direction of traffic to delay. The AP may schedule the uplink and downlink durations to compensate for the discrepancy in latency between the two directions of traffic.

公开(公告)号：US09655054B2

公开(公告)日：2017-05-16

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: H04W4/00 ,  H04W52/02 ,  H04B17/30 ,  H04L12/807 ,  H04W72/12 ,  H04W28/02

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.

公开(公告)号：US09565594B2

公开(公告)日：2017-02-07

申请号：US14229571

申请日：2014-03-28

Applicant: QUALCOMM Incorporated

Inventor： Shu Du ,  Srinivasa Kumar Duvvuri ,  James Simon Cho ,  Vipin Kumar Mehta ,  Guido Robert Frederiks ,  Arunkumar Jayaraman ,  Matthew Daniel Smith

IPC: H04W28/14 ,  H04W92/10 ,  H04W84/12 ,  H04W28/06 ,  H04L12/709

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：US20160142232A1

公开(公告)日：2016-05-19

申请号：US14542464

申请日：2014-11-14

Applicant: QUALCOMM Incorporated

Inventor： Qinghai Gao ,  Xiaolong Huang ,  Vincent Knowles Jones, IV ,  Srinivas Katar ,  James Simon Cho

IPC: H04L27/00

CPC classification number: H04L27/0008 ,  H04L1/0003 ,  H04L1/0007 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/1614

Abstract: Methods, systems, and devices are described for wireless communications. More particularly, the described features relate to techniques for adjusting a modulation and coding scheme (MCS) to account for different airtime utilizations (available airtime actually utilized by a device for transmissions) resulting from different MCSs. In one example, a method for wireless communication may involve: determining a media access control (MAC) efficiency for a station of a plurality of stations based at least in part on a real-time multi-user (MU) physical protocol data unit (PPDU) length, a real-time physical layer service data unit (PSDU) length of each of the plurality of stations, and a modulation and coding scheme (MCS) of the station; adjusting a goodput estimate of the station using the MAC efficiency; and, adjusting the MCS of the station using the adjusted goodput estimate.

Abstract translation: 描述了用于无线通信的方法，系统和设备。 更具体地，所描述的特征涉及用于调整调制和编码方案（MCS）以考虑由不同MCS产生的不同通话时间利用率（由设备实际用于传输的可用空闲时间）的技术。 在一个示例中，用于无线通信的方法可以包括：至少部分地基于实时多用户（MU）物理协议数据单元（MU）来确定多个站的站的媒体访问控制（MAC）效率 PPDU）长度，多个站中的每一个的实时物理层服务数据单元（PSDU）长度，以及站的调制和编码方案（MCS）; 使用MAC效率调整车站的有用估计; 并且使用经调整的输入估计来调整站的MCS。