公开(公告)号：EP2484135B1

公开(公告)日：2014-12-24

申请号：EP10768329.4

申请日：2010-09-30

申请人： Qualcomm Incorporated

发明人： XIAO, Lu ,  KIM, Yong, Jin ,  JIA, Zhanfeng ,  JULIAN, David, Jonathan

IPC分类号： H04W12/04

CPC分类号： H04L63/105 ,  H04L63/065 ,  H04W12/04

公开(公告)号：EP2359515A2

公开(公告)日：2011-08-24

申请号：EP09774774.5

申请日：2009-11-20

申请人： QUALCOMM Incorporated

发明人： JIA, Zhanfeng ,  JULIAN, David Jonathan

IPC分类号： H04L1/16

CPC分类号： H04L1/1803 ,  H04L1/1887

摘要： A system and method to implement synchronous channel timing are disclosed. The method comprises establishing a session time interval. In addition, the method comprises establishing a first time interval within the session time interval for transmitting a first data packet.

公开(公告)号：EP2353246A1

公开(公告)日：2011-08-10

申请号：EP09789443.0

申请日：2009-01-28

申请人： QUALCOMM Incorporated

发明人： JIA, Zhanfeng ,  TIAN, Qingjiang ,  JULIAN, David, Jonathan

IPC分类号： H04L1/16 ,  H04L1/18

CPC分类号： H04L1/1607 ,  H04B2001/6908 ,  H04L1/1854

摘要： A communications method comprising the steps of receiving a data packet; processing the data packet; and transmitting an ack packet approximately at an end of a first defined time interval if the processing of the data packet is completed within the first defined interval, or transmitting the ack packet approximately at an end of a second defined time interval if the processing of the data packet is not completed within the first defined interval and is completed within the second defined interval. Another communication method comprising the steps of transmitting a data packet; scanning a channel for an ack packet approximately at an end of a first defined time interval from the transmission of the data packet; and scanning the channel for the ack packet approximately at an end of a second defined time interval from the transmission of the data packet if the ack packet was not received within the first defined interval.

摘要翻译： 一种通信方法，包括以下步骤：接收数据分组; 处理数据包; 以及如果在所述第一定义的间隔内完成所述数据分组的处理，则在第一定义的时间间隔的结尾处近似地发送确认分组，或者如果所述第一定义的时间间隔的处理 数据分组未在第一定义的间隔内完成并且在第二定义的间隔内完成。 另一种通信方法包括以下步骤：发送数据包; 从数据分组的发送起，在第一定义的时间间隔结束时，大致扫描ack分组的信道; 以及如果在所述第一定义的间隔内没有接收到所述确认分组，则在从所述数据分组的发送开始的第二定义的时间间隔的结尾处，大致近似地扫描所述确认分组的所述信道。

公开(公告)号：EP2025124A1

公开(公告)日：2009-02-18

申请号：EP07761390.9

申请日：2007-04-26

申请人： Qualcomm Incorporated

发明人： MOALLEMI, Kamran ,  EKBAL, Amal ,  LEE, Chong U. ,  JULIAN, David Jonathan ,  JAIME, Manuel E. ,  JIA, Zhanfeng

IPC分类号： H04L29/06

CPC分类号： H04B1/7163 ,  H04B2001/6908 ,  H04L69/24 ,  H04W28/24 ,  H04W80/02

摘要： Aspects include methods and apparatuses for communicating in an ultra-wideband transmission. For example, some aspects include methods and apparatuses for wireless communications. The method includes, at a first device in communication with at least a second device via a wireless link, monitoring at least one resource for performing at least one function. The method further includes determining whether to assign the at least one function to the at least one second device. The determining is based on information that is indicative of at least function and indicative of at least one resource of the at least one second device. Other aspects include apparatus and devices for communicating data, including according to one or more aspects of the method. For example, some aspects include devices such as headsets, watches, and medical devices configured to use such methods and apparatuses for communicating data.

公开(公告)号：EP2359515B1

公开(公告)日：2020-01-01

申请号：EP09774774.5

申请日：2009-11-20

申请人： QUALCOMM Incorporated

发明人： JIA, Zhanfeng ,  JULIAN, David Jonathan

IPC分类号： H04L1/16

公开(公告)号：EP3342215A1

公开(公告)日：2018-07-04

申请号：EP16760289.5

申请日：2016-08-25

申请人： QUALCOMM Incorporated

发明人： JIA, Zhanfeng ,  RAISSINIA, Alireza ,  ASTERJADHI, Alfred ,  CHO, James, Simon ,  HOMCHAUDHURI, Sandip ,  KUMAR, Sumeet ,  MERLIN, Simone ,  ZHANG, Ning ,  RANGANATH, Ashok ,  O'DONNELL, Ian ,  YOUNG, Jason ,  SAMPATHKUMAR, BadriSrinivasan

IPC分类号： H04W52/02

CPC分类号： H04W52/0258 ,  H04W52/0206 ,  H04W52/0216 ,  H04W52/0219 ,  H04W52/0225 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/22

摘要： Methods, systems, and devices are described for saving power in wireless communications. One aspect includes providing an indication of a sleep duration for transmission to a wireless node, communicating with the wireless node during a target wakeup time (TWT), wherein the communication comprises at least one of providing data for transmission to the wireless node or obtaining data received from the wireless node, and refraining from providing data for transmission to the wireless node for at least the indicated sleep duration based at least in part on timing of the communication. Another aspect includes receiving an indication of a sleep duration from a wireless node, communicating with the wireless node during a time slot of a TWT, and entering a sleep mode for the indicated sleep duration based at least in part on timing of the communication with the wireless node during the time slot of the TWT.

公开(公告)号：EP2719113B1

公开(公告)日：2018-05-30

申请号：EP11727604.8

申请日：2011-06-10

申请人： Qualcomm Incorporated

发明人： JACOBSON, David, M. ,  XIAO, Lu ,  JULIAN, David, J. ,  JIA, Zhanfeng ,  BUESKER, Brian, M. ,  BICA, Vito, R. ,  TEAGUE, Edward, H.

IPC分类号： H04L9/08 ,  H04L9/32 ,  H04W12/04

CPC分类号： H04L9/0833 ,  H04L9/0844 ,  H04L9/3213 ,  H04L9/3297 ,  H04L2209/76 ,  H04L2209/80 ,  H04W12/04

摘要： One feature provides a method for a client node to establish a session key with a group node by obtaining an epoch identity value associated with a current epoch, wherein obtaining the epoch identity value includes one of computing the epoch identity value based on a node real time or negotiating the epoch identity value with the group node, computing a restricted key using a shared secret key, the epoch identity value, and a group node identity associated with the group node, and executing a session key establishment protocol with the group node to derive the session key using the restricted key as a master key in the session key establishment protocol. The session key may be established between the group node and the client node even though communications between the group node and the central node is only intermittently available during the current epoch.

公开(公告)号：EP3289741A1

公开(公告)日：2018-03-07

申请号：EP16714190.2

申请日：2016-03-24

申请人： QUALCOMM INCORPORATED

发明人： HIRSCH, Olaf Josef ,  FREDERIKS, Guido Robert ,  JIA, Zhanfeng ,  KIM, Youhan ,  LI, Yixiang ,  ZHANG, Ning

IPC分类号： H04L27/00 ,  H04L5/00 ,  H04L27/26 ,  H04B1/38 ,  H04B1/50 ,  H04B1/54 ,  H04L5/14

CPC分类号： H04W88/06 ,  H04L5/001 ,  H04L5/0073 ,  H04L5/143 ,  H04L27/0008 ,  H04L27/0014 ,  H04L27/2657 ,  H04L27/2662

摘要： A method and apparatus for concurrent wireless communications on multiple channels of the same frequency band. A wireless device receives a first data signal via a first transceiver chain while concurrently initiating a transmission of a second data signal via a second transceiver chain of the wireless device. The wireless device suspends updates to one or more tracking loops of the first transceiver chain in response to initiating the transmission of the second data signal. The updates to the one or more tracking loops may be suspended prior to transmitting the second set of data from the second transceiver chain. The wireless device may subsequently resume updates to the one or more tracking loops of the first transceiver chain after completing the transmission of the second data signal.

公开(公告)号：EP2954631B1

公开(公告)日：2017-10-25

申请号：EP14707260.7

申请日：2014-01-31

申请人： Qualcomm Incorporated

发明人： DU, Shu ,  JIA, Zhanfeng ,  ZHANG, Ning ,  CHO, James S. ,  GAO, Qinghai ,  TANDRA, Rahul

IPC分类号： H04B7/0452 ,  H04W24/02 ,  H04L1/00 ,  H04L1/06

CPC分类号： H04W24/02 ,  H04B7/0452 ,  H04L1/0002 ,  H04L1/0003 ,  H04L1/0009 ,  H04L1/0015 ,  H04L1/0019 ,  H04L1/0033 ,  H04L1/06 ,  Y02D50/10

摘要： A method of performing dual-mode rate control for an access point in a wireless communication system includes a single-user mode of operation and a multi-user mode of operation. In the single-user mode, a basic rate for a station is determined based on channel conditions. In the multi-user mode, a rate for a plurality of stations is determined using tracking. The tracking includes performing a sounding for the plurality of stations. An initial multi-user current rate is then set equal to a function of a number of users and the basic rate. A transmission is sent to the plurality of stations using the current rate. A packet error rate (PER) is detected during transmission to the plurality of stations. The current rate is adjusted based on the PER. After rate adjustment, either sounding is triggered or the method returns to sending a transmission using the current rate.

公开(公告)号：EP3150006B1

公开(公告)日：2017-09-20

申请号：EP15728276.5

申请日：2015-05-20

申请人： QUALCOMM Incorporated

发明人： HOMCHAUDHURI, Sandip ,  HUSTED, Paul ,  LEE, MeeLan ,  MEHTA, Srenik ,  SHI, Kai ,  ABDOLLAHI-ALIBEIK, Shahram ,  JIA, Zhanfeng ,  KASNAVI, Soraya ,  ZHANG, Ning ,  SU, David, Kuochieh ,  THANDAVESWARAN, Subramania Sharma ,  GAINEY, Kenneth ,  O'DONNELL, Ian David

IPC分类号： H04W52/02

CPC分类号： G06F1/3293 ,  G06F1/3278 ,  G06F1/3287 ,  H04W52/0229 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/22 ,  Y02D70/24

摘要： Methods, systems, and devices are described for power conservation in a wireless communications system. In embodiments, power conservation may be achieved by adaptively controlling power modes of a wireless communication device, using a modulation and coding scheme (MCS) value as a factor for guidance. According to one aspect, the device may be in a reception mode. While in a first power mode, the device may receive control information for incoming data that is being transmitted via a transmission frame. The control information may be located in a first portion of the frame with the data following in a second portion of the frame. The control information may include or otherwise indicate an MCS value corresponding to the MCS applied to the incoming data. Based on the MCS value, the device may be adaptively switched to a second power mode for receiving the incoming data.

摘要翻译： 描述了用于无线通信系统中的节能的方法，系统和设备。 在实施例中，可以通过使用调制和编码方案（MCS）值作为引导因子来自适应地控制无线通信设备的功率模式来实现功率节省。 根据一个方面，该设备可以处于接收模式。 当处于第一功率模式时，该设备可以接收正在经由传输帧发送的传入数据的控制信息。 控制信息可以位于帧的第一部分中，数据在帧的第二部分中。 控制信息可以包括或以其他方式指示与应用于输入数据的MCS对应的MCS值。 基于MCS值，设备可以自适应地切换到用于接收输入数据的第二功率模式。