公开(公告)号：US20190253968A1

公开(公告)日：2019-08-15

申请号：US15896859

申请日：2018-02-14

Applicant: QUALCOMM Incorporated

Inventor： Yongchun Xiao ,  Sandip Homchaudhuri ,  Pradeep Kumar Yenganti ,  Sanoop Kottontavida ,  James Cho ,  Srinivas Katar ,  Shuibing Dai

IPC: H04W52/02 ,  H04W28/02

CPC classification number: H04W52/0216 ,  H04W28/0284 ,  H04W28/0289 ,  H04W52/0219 ,  H04W76/28

Abstract: Various aspects provide a wireless station (STA) to implement congestion sensitive target wake time (TWT) communications scheduling and enable the STA to determine whether to engage in communications between TWT service periods. A method described includes identifying a congestion metric, determining whether the congestion metric meets a congestion threshold, and transmitting a request to establish TWT communications in response to determining that the congestion metric meets the congestion threshold. Another method described includes terminating a scheduled service period of a TWT communications, receiving an indication that a threshold number of frames is available for transmission to an STA from an access point (AP) or an indication that one or more frames are present in a transmission queue at the STA, and transmitting, by the STA to the AP an indication that a communications link is to remain active between the terminated scheduled service period and a subsequent scheduled service period.

公开(公告)号：US09961668B2

公开(公告)日：2018-05-01

申请号：US14883469

申请日：2015-10-14

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Santosh Paul Abraham ,  George Cherian ,  Alireza Raissinia ,  James Cho ,  Guido Frederiks

IPC: H04M1/00 ,  H04W68/02 ,  H04W52/02 ,  H04W48/16 ,  H04W84/12 ,  H04W84/18

CPC classification number: H04W68/02 ,  H04W48/16 ,  H04W52/0216 ,  H04W84/12 ,  H04W84/18 ,  Y02D70/00 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/166 ,  Y02D70/22 ,  Y02D70/23 ,  Y02D70/26

Abstract: In some examples, a method includes generating, at a first device, a paging message including an indication of whether the first device is available for a particular time period during which devices of a data link group of a neighbor aware network (NAN) are configured to operate in an active operating mode. The method also includes sending the message from the first device to one or more devices of the data link group of the NAN.

公开(公告)号：US20170339680A1

公开(公告)日：2017-11-23

申请号：US15595161

申请日：2017-05-15

Applicant: QUALCOMM Incorporated

Inventor： Zhanfeng Jia ,  Alireza Raissinia ,  James Cho ,  Sandip Homchaudhuri ,  Senthil Subramanian ,  Alfred Asterjadhi ,  Naveen Kumar Kakani

IPC: H04W72/04 ,  H04W28/02 ,  H04W28/16 ,  H04W28/18

CPC classification number: H04W72/042 ,  H04W28/02 ,  H04W28/16 ,  H04W28/18 ,  H04W52/0216 ,  H04W52/0219 ,  H04W72/121 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/166

Abstract: A system and method for managing communications between an access point (AP) and a plurality of wireless stations (STAs) over a wireless medium. The AP schedules each of the plurality of STAs to access the wireless medium during a target wake time (TWT) service period. During a first portion of the TWT service period, the AP communicates with a first subset of the plurality of STAs using a first signaling technique. During a second portion of the TWT service period, the AP communicates with a second subset of the plurality of STAs using a second signaling technique. The second subset of the plurality of STAs does not include any STAs from the first subset.

公开(公告)号：US09763223B2

公开(公告)日：2017-09-12

申请号：US14883523

申请日：2015-10-14

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Santosh Paul Abraham ,  George Cherian ,  Alireza Raissinia ,  James Cho ,  Guido Frederiks

IPC: H04B7/00 ,  H04W68/02 ,  H04W4/00 ,  H04W8/00 ,  H04W76/02 ,  H04W48/12 ,  H04W84/18 ,  H04L12/801 ,  H04W84/12

CPC classification number: H04W68/02 ,  H04L47/12 ,  H04W4/80 ,  H04W8/005 ,  H04W48/12 ,  H04W76/14 ,  H04W84/12 ,  H04W84/18

Abstract: A method includes generating a paging message at a first device of a data link group of a neighbor aware network (NAN). The paging message includes a paged device list. The paged device list identifies a subset of devices of the data link group, the subset of devices scheduled to receive data from the first device during a transmission window. The paging message includes a receiver address field having a particular receiver address value. The method also includes transmitting, during the paging window, the paging message from to at least one device of the data link group other than the first device.

公开(公告)号：US10117222B2

公开(公告)日：2018-10-30

申请号：US15417077

申请日：2017-01-26

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Santosh Paul Abraham ,  George Cherian ,  Alireza Raissinia ,  James Cho ,  Guido Frederiks

IPC: H04B7/00 ,  H04W68/02 ,  H04W52/02 ,  H04W48/16 ,  H04W84/12 ,  H04W84/18

Abstract: In some examples, a method includes receiving, at a second device of a data link group of a neighbor aware network (NAN), a message including an indication of whether a first device corresponding to a particular service is available during a particular time period during which devices of the data link group are configured to operate in an active operating mode. The method also includes transitioning to a low-power operating mode during one or more transmission windows corresponding to the particular time period in response to determining that the first device is unavailable during the particular time period.

公开(公告)号：US20180011179A1

公开(公告)日：2018-01-11

申请号：US15643188

申请日：2017-07-06

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin Zhang ,  Ning Zhang ,  Youhan Kim ,  Rahul Malik ,  James Cho

IPC: G01S11/02 ,  H04L29/06 ,  H04B7/06 ,  H04W84/12

CPC classification number: G01S11/026 ,  H04B7/06 ,  H04L5/0048 ,  H04L27/2613 ,  H04L27/2646 ,  H04L27/2663 ,  H04L69/22 ,  H04W64/00 ,  H04W84/12

Abstract: This disclosure provides systems, methods and apparatuses for detecting a presence of long training fields (LTFs) in packet extensions of high-efficiency (HE) packets. An apparatus requests a length of packet extensions to be used for a ranging operation. The apparatus receives an HE packet including a packet extension containing a selected number of LTFs based at least in part on the requested packet extension length. The apparatus performs the ranging operation based on a determination that the packet extension contains LTFs. In some aspects, the apparatus detects a presence of LTFs in the packet extension based on a bit provided in the HE packet. In some other aspects, the apparatus detects a presence of LTFs in the packet extension by extracting sequences from the packet extension.

公开(公告)号：US20170257885A1

公开(公告)日：2017-09-07

申请号：US15426255

申请日：2017-02-07

Applicant: QUALCOMM Incorporated

Inventor： Xiaoxin Zhang ,  James Cho ,  Carlos Horacio Aldana

IPC: H04W74/00 ,  H04W24/08 ,  H04L5/00

CPC classification number: H04W74/008 ,  H04L5/0035 ,  H04L5/0055 ,  H04W24/08 ,  H04W64/00 ,  H04W84/12

Abstract: This disclosure provides systems, methods and apparatuses for performing ranging operations between a transmitting device and one or more receiving devices using one or more wireless channels. In some implementations, a transmitting device may substantially concurrently exchange, on each of a plurality of wireless channels, a corresponding set of FTM frames and acknowledgement (ACK) frames with a receiving device, and then determine a distance to the receiving device based on the plurality of exchanged sets of FTM and ACK frames. In some other implementations, the transmitting device may substantially concurrently exchange, with each of a plurality of receiving devices, a corresponding set of FTM frames and ACK frames on a corresponding one of a plurality of wireless channels, and then determine a distance to each of the plurality of receiving devices based on the corresponding sets of exchanged FTM and ACK frames.

公开(公告)号：US20160337899A1

公开(公告)日：2016-11-17

申请号：US15151411

申请日：2016-05-10

Applicant: QUALCOMM Incorporated

Inventor： Zhanfeng Jia ,  James Cho ,  Sumeet Kumar ,  Sandip HomChaudhuri ,  Ian O'Donnell ,  Ning Zhang ,  Alireza Raissinia

IPC: H04W28/02 ,  H04B7/04 ,  H04L5/00 ,  H04W52/02

CPC classification number: H04W28/0289 ,  H04L5/0023 ,  H04L5/0028 ,  H04L5/0048 ,  H04L27/2601 ,  H04W52/0219 ,  H04W52/0235 ,  H04W72/1263 ,  H04W84/12 ,  Y02D70/00 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/162 ,  Y02D70/22

Abstract: Apparatuses and methods are disclosed for delivering queued downlink (DL) data from a second wireless device to a plurality of first wireless devices. In accordance with example embodiments, the second wireless device may determine, for each of the plurality of first wireless devices, a presence of a corresponding set of queued DL data, may transmit a beacon frame identifying which of the plurality of first wireless devices has queued DL data, and may transmit, to each of the identified first wireless devices, permission to request delivery of queued DL data. Next, the second wireless device may receive, from each of the identified first wireless devices, a request for delivery of the queued DL data. Then, the second wireless device may concurrently transmit, to each of the identified first wireless devices, the corresponding set of queued DL data.

Abstract translation: 公开了用于将排队的下行链路（DL）数据从第二无线设备传送到多个第一无线设备的装置和方法。 根据示例性实施例，第二无线设备可以针对多个第一无线设备中的每一个来确定对应的一组排队的DL数据的存在，可以发送标识多个第一无线设备中哪一个已排队的信标帧 DL数据，并且可以向每个所识别的第一无线设备发送请求传送排队的DL数据的许可。 接下来，第二无线设备可以从每个识别的第一无线设备接收对排队的DL数据的传送请求。 然后，第二无线设备可以向所标识的每个第一无线设备同时发送对应的排队DL数据集。

公开(公告)号：US09769645B2

公开(公告)日：2017-09-19

申请号：US14883473

申请日：2015-10-14

Applicant: QUALCOMM Incorporated

Inventor： Abhishek Pramod Patil ,  Santosh Paul Abraham ,  George Cherian ,  Alireza Raissinia ,  James Cho ,  Guido Frederiks

IPC: H04B7/00 ,  H04W8/00 ,  H04W74/04 ,  H04W76/02 ,  H04W84/12 ,  H04W84/18 ,  H04W8/24 ,  H04W68/02

CPC classification number: H04W8/005 ,  H04W8/24 ,  H04W68/025 ,  H04W74/04 ,  H04W76/14 ,  H04W84/12 ,  H04W84/18

Abstract: In some examples, a method includes receiving, at a first device, availability information from a second device during a connection set-up phase of communication of a neighbor aware network (NAN) or during a NAN discovery window. The connection set-up phase includes an exchange of device capability information. The method also includes, based on the availability information indicating that the second device is available during a transmission window of a data link group of the NAN to receive data from the first device, sending data from the first device to the second device during the transmission window without performing a message exchange to determine an availability of the second device.

公开(公告)号：US20170078987A1

公开(公告)日：2017-03-16

申请号：US15343114

申请日：2016-11-03

Applicant: QUALCOMM Incorporated

Inventor： James Cho ,  William McFarland ,  Ning Zhang

IPC: H04W56/00 ,  H04J3/06

CPC classification number: H04W56/001 ,  H04J3/0661 ,  H04J3/0664 ,  H04J3/067 ,  H04N21/4305 ,  H04N21/43615 ,  H04N21/43637

Abstract: A system and method for closely synchronizing the transmission of real-time data streams is described. Synchronization data is transmitted by a cycle master for receipt by one or more cycle slaves. A cycle slave updates an internal state based on synchronization data received from the cycle master. This internal state may govern reproduction of received real-time data streams by the cycle slave. Such synchronization data may be inserted into transmitted media streams. The cycle slave internal state may be more accurately set by calculating timing differences between the cycle master and cycle slave and periodically adjusting that internal state between receipt of the synchronization data from the cycle master.

Abstract translation: 描述了用于紧密同步实时数据流的传输的系统和方法。 同步数据由循环主站传送，以便由一个或多个循环从站接收。 循环从站根据从循环主站接收的同步数据更新内部状态。 该内部状态可以管理由循环从站接收的实时数据流的再现。 这样的同步数据可以被插入到所传送的媒体流中。 循环从站内部状态可以通过计算循环主站和从站从站之间的定时差异并周期性地调整从循环主站接收到同步数据之间的内部状态来更精确地设置。