公开(公告)号：US20140357193A1

公开(公告)日：2014-12-04

申请号：US14286565

申请日：2014-05-23

Applicant: QUALCOMM Incorporated

Inventor： Jubin Jose ,  Ying Wang ,  Kai Shi ,  Xinzhou Wu ,  Junyi Li

IPC: H04W72/04 ,  H04W4/00 ,  H04W88/06

CPC classification number: H04W4/80 ,  H04W16/14 ,  H04W48/16 ,  H04W72/00 ,  H04W72/02 ,  H04W88/06

Abstract: Methods, systems, and devices are described for detecting dedicated short range communications (DSRC) transmissions to determine whether to use at least a portion of the DSRC spectrum. In one embodiment, a multi-mode device may be operated outside of the DSRC spectrum using a first clock rate, and may then be switched to a second clock rate while operating outside of the DSRC spectrum to detect DSRC transmissions using the DSRC spectrum.

Abstract translation: 描述了用于检测专用短距离通信（DSRC）传输以确定是否使用DSRC频谱的至少一部分的方法，系统和设备。 在一个实施例中，多模式设备可以使用第一时钟速率在DSRC频谱之外操作，然后可以在DSRC频谱之外操作时切换到第二时钟速率，以使用DSRC频谱来检测DSRC传输。

公开(公告)号：US08868141B2

公开(公告)日：2014-10-21

申请号：US14050088

申请日：2013-10-09

Applicant: QUALCOMM Incorporated

Inventor： Sundar Subramanian ,  Sichao Yang ,  Xinzhou Wu ,  Junyi Li

IPC: H04M1/00 ,  B61L15/00 ,  B61L25/02 ,  G08G1/09 ,  B61L29/28 ,  G08G1/16 ,  H04W52/02 ,  B61L29/24 ,  H04W4/04 ,  H04W4/02 ,  H04W72/00 ,  H04W4/00

CPC classification number: H04W52/0251 ,  B61L15/0027 ,  B61L25/025 ,  B61L29/246 ,  B61L29/28 ,  B61L2205/04 ,  G08G1/087 ,  G08G1/093 ,  G08G1/163 ,  H04W4/02 ,  H04W4/023 ,  H04W4/046 ,  H04W4/80 ,  H04W72/005 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/144 ,  Y02D70/164

Abstract: Safety message monitoring operations and/or safety message transmission operations are controlled for a mobile wireless communications device. The periodicity with regard to safety message monitoring and/or safety message transmissions is varied based on the environment of the mobile wireless device. The transmission power level with regard to safety message transmissions is varied based on the environment of the mobile wireless device. In some embodiments, safety message monitoring and transmission operations are disabled when the mobile device is determined to be inside a building or inside a vehicle. In some embodiments, safety message monitoring rate and safety message transmission rate is varied as a function of proximity to vehicular traffic and/or the level of detected vehicular traffic. In some embodiments, safety message transmission power level is varied as a function of proximity to vehicular traffic and/or the level of detected vehicular traffic.

Abstract translation: 控制移动无线通信设备的安全消息监视操作和/或安全消息传输操作。 基于移动无线设备的环境来改变关于安全消息监视和/或安全消息传输的周期性。 关于安全消息传输的传输功率电平根据移动无线设备的环境而变化。 在一些实施例中，当确定移动设备在建筑物内或车辆内部时，安全消息监视和传输操作被禁用。 在一些实施例中，安全消息监视速率和安全消息传输速率作为与车辆交通的接近度和/或检测到的车辆交通的水平的函数而变化。 在一些实施例中，安全消息传输功率电平作为与车辆交通的接近度和/或检测到的车辆交通的水平而变化。

公开(公告)号：US20140301326A1

公开(公告)日：2014-10-09

申请号：US14311627

申请日：2014-06-23

Applicant: QUALCOMM Incorporated

Inventor： Shailesh Patil ,  Hua Wang ,  Xinzhou Wu ,  Junyi Li ,  Thomas Joseph Richardson

IPC: H04W28/04 ,  H04W4/00

CPC classification number: H04W28/046 ,  H04W4/70 ,  H04W74/085 ,  H04W74/0858 ,  H04W76/11 ,  H04W76/14

Abstract: Various methods and apparatus are directed to collision detection and/or avoidance regarding peer to peer connection identifiers. A wireless communications device broadcasts a signal indicating its acquired connection identifier in one of two alternative blocks. A base station monitors peer to peer signaling in its coverage area and tracks the usage of peer to peer connection identifiers by pairs of devices. The base station detects when multiple pairs of devices are using the same peer to peer connection identifier. The base station provides assistance to the peer to peer network to avoid a collision or facilitate rapid collision detection by the peer to peer devices. In one approach the base station sends an instruction for a connection to switch its connection identifier. In another approach the base station sends a connection a message to bias its selection as to which of the two alternative blocks to use for transmission.

Abstract translation: 各种方法和装置针对关于对等连接标识符的冲突检测和/或回避。 无线通信设备在两个替代块之一中广播指示其获取的连接标识符的信号。 基站监视其覆盖区域中的对等信令，并通过成对的设备跟踪对等连接标识符的使用。 基站检测多对设备何时使用相同的对等连接标识符。 基站向对等网络提供协助以避免冲突或促进对等设备的快速冲突检测。 在一种方法中，基站发送用于连接的指令来切换其连接标识符。 在另一种方法中，基站向连接发送消息以偏移其对于要用于传输的两个替代块中的哪一个的选择。

公开(公告)号：US20140181245A1

公开(公告)日：2014-06-26

申请号：US13725986

申请日：2012-12-21

Applicant: QUALCOMM INCORPORATED

Inventor： Thomas Joseph Richardson ,  Xinzhou Wu ,  Junyi Li ,  Sundar Subramanian ,  Vincent Douglas Park

IPC: H04L29/08

CPC classification number: H04L67/26 ,  G06F17/30194 ,  G06F17/30575 ,  H04H60/11 ,  H04H60/80 ,  H04L12/1859 ,  H04L29/08306 ,  H04L29/08693 ,  H04L67/1097 ,  H04N21/4622 ,  H04N21/632 ,  H04N21/6543

Abstract: Techniques are provided for expedited Internet content delivery. For example, there is provided a method that involves receiving, at a communication device, a broadcast transmission outside of a spectrum allocated for Internet communications and outside of a spectrum allocated for real time programming content, wherein the broadcast transmission includes unsolicited content pushed to a group of such communication devices. The method may involve storing a portion of the unsolicited content, and receiving a request for content from a user. The method may involve providing the portion of the unsolicited content to the user, in response to the requested content matching the portion. The method nay involve determining whether the requested content is stored on another communication device of the group, in response to the requested content not matching the portion.

Abstract translation: 提供了加快互联网内容传送的技术。 例如，提供了一种方法，其包括在通信设备处接收分配给因特网通信的频谱之外的广播传输，以及在分配给实时节目内容的频谱之外，广播传输包括被推送到 一组这样的通信设备。 该方法可以包括存储非请求内容的一部分，以及从用户接收对内容的请求。 该方法可以包括响应于与该部分匹配的所请求的内容向用户提供非请求内容的一部分。 该方法涉及确定所请求的内容是否存储在该组的另一个通信设备上，以响应于该请求的内容与该部分不匹配。

公开(公告)号：US10182413B2

公开(公告)日：2019-01-15

申请号：US14446738

申请日：2014-07-30

Applicant: QUALCOMM Incorporated

Inventor： Hong Cheng ,  Xinzhou Wu ,  Lionel Jacques Garin

IPC: H04J3/06 ,  H04W24/10 ,  H04W64/00 ,  G01S5/00 ,  G01S5/02 ,  G01S5/10 ,  G01S5/06

Abstract: A station (STA) receives a schedule from a reference device in a wireless network. The schedule provides a measurement time for each of one or more wireless channels. The STA tunes to a first channel of the one or more wireless channels in accordance with the schedule. While tuned to the first channel in accordance with the schedule, the STA receives a first message from a first access point (AP). The first message, which includes a time-of-departure timestamp from the reference device, is time-stamped with a time-of-arrival timestamp. The STA receives an indication of a time at which the reference device received the first message from the first AP. The STA determines its position based in part on the time-of-departure timestamp, the time-of-arrival timestamp, and the time at which the reference device received the first message.

公开(公告)号：US20180262996A1

公开(公告)日：2018-09-13

申请号：US15973821

申请日：2018-05-08

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Rajiv Laroia ,  Xinzhou Wu

IPC: H04W52/24 ,  H04W52/38

CPC classification number: H04W52/243 ,  H04W52/383

Abstract: Methods and apparatus related to the sharing of wide area network (WAN) with peer to peer communication signaling usage are described. A mobile communications device receives a signal from a base station and measures a power of the received signal. The mobile communication device determines a transmission power level of a peer to peer reference signal as a function of the measured power of the received signal from the base station, wherein said function of the measured power of the received signal from the base station depends on a mobile target signal to noise ratio. The mobile communications device broadcasts the peer to peer reference signal at the transmission power level.

公开(公告)号：US20170156130A1

公开(公告)日：2017-06-01

申请号：US14954494

申请日：2015-11-30

Applicant: QUALCOMM Incorporated

Inventor： Ying Wang ,  Sundar Subramanian ,  Xinzhou Wu ,  Junyi Li ,  Thomas Richardson

IPC: H04W72/04 ,  H04L5/00

CPC classification number: H04W72/04 ,  H04L5/0048 ,  H04L5/0055 ,  H04L5/0057 ,  H04L67/104 ,  H04L67/12 ,  H04W72/1252 ,  H04W72/1263

Abstract: A method, a computer program product, and an apparatus are provided. In one configuration, the apparatus transmits a first broadcast signal including information indicating an intention to use a unicast resource for a broadcast. In addition, the apparatus transmits a second broadcast signal in the unicast resource. In another configuration, the apparatus, which is a first wireless device, receives a first broadcast signal from a second wireless device including information indicating an intention to use a unicast resource for a broadcast. In addition, the apparatus receives a first scheduling signal from the second wireless device in a scheduling resource. The first scheduling signal is for indicating a second intention to use the unicast resource for transmitting a second broadcast signal. Furthermore, the apparatus refrains from transmitting a second scheduling signal in the scheduling resource in response to the first scheduling signal.

公开(公告)号：US20170142235A1

公开(公告)日：2017-05-18

申请号：US14939721

申请日：2015-11-12

Applicant: QUALCOMM Incorporated

Inventor： Lei Zhang ,  Chong Li ,  Xinzhou Wu ,  Junyi Li

IPC: H04L29/06 ,  H04W72/04 ,  H04L12/741

CPC classification number: H04L69/22 ,  H04L5/001 ,  H04L5/0053 ,  H04L45/74 ,  H04W72/0446 ,  H04W74/0816

Abstract: Methods, systems, and devices for wireless communication are described. A base station may perform a clear channel assessment (CCA) procedure on a channel that includes multiple sub-bands of a radio frequency spectrum band. The base station may determine that the channel is available based on the CCA and transmit a special header in the channel. In some examples, the special header may include multiple transmission time intervals (TTIs), where each TTI may include a header packet in each sub-band of the radio frequency spectrum band. In some cases, the header packet may include a clear to send (CTS)-to-self frame structure. The base station may transmit a first TTI across each of the sub-bands at a first power level, and transmit additional TTIs across the sub-bands at a different power level. Additional header packets may be transmitted at the boundaries of subsequent subframes.

公开(公告)号：US20170093530A1

公开(公告)日：2017-03-30

申请号：US14864574

申请日：2015-09-24

Applicant: QUALCOMM Incorporated

Inventor： Shrinivas Kudekar ,  Xinzhou Wu ,  Junyi Li ,  Arik Gubeskys ,  Yehonatan Dallal

IPC: H04L1/06 ,  H04W72/12 ,  H04B7/08 ,  H04L5/00

CPC classification number: H04L1/0668 ,  H04B7/0854 ,  H04B17/345 ,  H04L5/0053 ,  H04L25/0224 ,  H04L25/03866 ,  H04W72/1263

Abstract: A wireless local area network (WLAN) may utilize an enhanced header for LTE-CW transmissions to increase utilization of the shared spectrum. In one example, a first device may generate a header that is identifiable to other devices using a shared spectrum, scramble, in the time domain, long training symbols according to a scrambling code that is specific to the first device, and transmit an enhanced header that includes the generated header and the scrambled long training symbols. The first device may also introduce a data region following the long training symbols to the enhanced header to create an enhanced packet. A second device may receive the enhanced packet and descramble the long training symbols based at least in part on the scrambling code that is specific to the first device to determine a channel estimate for the communication channel between the first device and the second device.

公开(公告)号：US20170064702A1

公开(公告)日：2017-03-02

申请号：US14842685

申请日：2015-09-01

Applicant: QUALCOMM Incorporated

Inventor： Junyi Li ,  Assaf Touboul ,  Xinzhou Wu ,  Arthur Gubeskys

IPC: H04W72/04 ,  H04W28/26

CPC classification number: H04W72/0446 ,  H04W16/14 ,  H04W74/0816

Abstract: A wireless device may identify a first subband in an unlicensed radio frequency spectrum band used to communicate control traffic. The wireless device may identify a second subband in the unlicensed radio frequency spectrum band used to communicate data traffic. The first subband and the second subband may be different. The wireless device may reserve the first subband for a first duration of time for a plurality of wireless devices. The reservation may be based at least in part on an enhanced self-clear-to-send (self-CTS) transmitted over the first subband.

Abstract translation: 无线设备可以识别用于传达控制业务的非许可射频频带中的第一子带。 无线设备可以识别用于传送数据业务的未许可的射频频带中的第二子带。 第一子带和第二子带可以不同。 无线设备可以为多个无线设备在第一持续时间内预留第一子带。 该保留可以至少部分地基于通过第一子带传输的增强的自清除发送（自CTS）。