公开(公告)号：US09830298B2

公开(公告)日：2017-11-28

申请号：US14270124

申请日：2014-05-05

Applicant: QUALCOMM Incorporated

Inventor： Yossef Tsfaty ,  Xiaodong Wang ,  Alireza Raissinia ,  Vijayalakshmi Rajasundaram Raveendran ,  Xiaolong Huang

IPC: G06F13/24 ,  G06F13/42 ,  H04J3/06

CPC classification number: G06F13/4286 ,  G06F13/4282 ,  G06F2213/0042 ,  H04J3/06

Abstract: A method of transmitting universal serial bus (USB) frames over a communications channel is disclosed. A USB device receives one or more USB frames from a host device via a network, wherein the one or more USB frames are encapsulated in one or more data packets based on a communications protocol associated with the network. The USB device further synchronizes a local clock signal with a clock signal of the host device using a clock synchronization mechanism of the communications protocol. The USB device then determines a number of USB frames transmitted by the host device and processes the one or more USB frames based, at least in part, on the synchronized local clock signal. For some embodiments, the USB device may receive a frame count value and a corresponding media time value from the host device.

公开(公告)号：US20170332339A1

公开(公告)日：2017-11-16

申请号：US15664415

申请日：2017-07-31

Applicant: Innovative Technology Lab Co., Ltd.

Inventor： Sung Jun YOON

IPC: H04W56/00 ,  H04W76/02

CPC classification number: H04W56/0015 ,  H04J3/06 ,  H04W76/14

Abstract: Exemplary embodiments provide a method and apparatus for transmitting a synchronization signal for Device-to-Device (D2D) communication in a wireless communication system. With respect to a D2D synchronization source to transmit a synchronization signal for D2D communication, the method includes: generating a D2D Synchronization Signal (D2DSS); and transmitting, by a synchronization source, the D2DSS to a D2D reception (Rx) UE, wherein the D2DSS includes a Primary D2D Synchronization Signal (PD2DSS) generated based on information associated with the synchronization source.

公开(公告)号：US09774412B2

公开(公告)日：2017-09-26

申请号：US14189471

申请日：2014-02-25

Applicant: Huawei Technologies Co., Ltd.

Inventor： Lianfu Liu ,  Jun Ma

IPC: H04L5/14 ,  H04J3/06 ,  H04L27/00 ,  H04B7/26 ,  H04L27/227

CPC classification number: H04J3/06 ,  H04B7/2643 ,  H04L27/0014 ,  H04L27/2273 ,  H04L2027/0024 ,  H04L2027/0048

Abstract: Embodiments of the present invention provide a carrier synchronization method, circuit, and system. The method includes performing n times frequency multiplication on a received signal; performing narrowband filtering at least twice and rectangular wave shaping at least twice on the signal obtained after the n times frequency multiplication; and performing n times frequency division on the signal obtained after the filtering and shaping, to restore a carrier signal. The variable n is a positive integer greater than or equal to 4.

公开(公告)号：US20170078037A1

公开(公告)日：2017-03-16

申请号：US15238972

申请日：2016-08-17

Applicant: CPG Technologies, LLC

Inventor： James F. Corum ,  Kenneth L. Corum

IPC: H04J3/06 ,  H01P1/18

CPC classification number: H04J3/06 ,  H01P1/182 ,  H02J50/20 ,  H02J50/40

Abstract: Disclosed are various embodiments of apparatuses and methods for global time synchronization using a guided surface wave traveling along the surface of a terrestrial medium. In one embodiment, a guided surface wave receive structure receives electrical energy from a guided surface wave that is generated at a specific time and is traveling along a terrestrial medium. A time synchronization circuit that is coupled to the guided surface wave receive structure synchronizes its time with the time at the origin of the guided surface wave based at least in part based on the propagation delay of the guided surface wave between the origin of the guided surface wave and the guided surface wave receive structure.

Abstract translation: 公开了使用沿着陆地介质的表面行进的引导表面波的全局时间同步的装置和方法的各种实施例。 在一个实施例中，引导表面波接收结构从在特定时间产生并沿着陆地介质行进的导波表面波接收电能。 耦合到被引导表面波接收结构的时间同步电路至少部分地基于被引导表面波的原点的被引导表面波的传播延迟，将其时间与引导表面波的原点的时间同步 波和引导波接收结构。

公开(公告)号：US20170078036A1

公开(公告)日：2017-03-16

申请号：US15072867

申请日：2016-03-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jaechun LEE ,  Ui Kun KWON ,  Seungkeun YOON

IPC: H04J3/06 ,  A61B5/024

CPC classification number: H04J3/06 ,  A61B5/02125 ,  A61B5/024 ,  A61B5/02416

Abstract: A method of measuring a time difference between detection times includes receiving, from a first sensor, first information associated with a first detection time at which a first biosignal is detected, receiving, from a second sensor, second information associated with a second detection time at which a second biosignal is detected, and measuring a time difference between the first and the second detection times based on the first information and the second information.

Abstract translation: 一种测量检测次数之间的时间差的方法包括：从第一传感器接收与检测到第一生物信号的第一检测时间相关联的第一信息，从第二传感器接收与第二检测时间相关联的第二信息 检测第二生物信号，并且基于第一信息和第二信息来测量第一和第二检测时间之间的时间差。

公开(公告)号：US20160234573A1

公开(公告)日：2016-08-11

申请号：US14617205

申请日：2015-02-09

Applicant: Infinera Corporation

Inventor： Ashok JAIN ,  Vishwanathan PARAMASIVAM ,  Ashok N. TATINENI

IPC: H04Q11/00 ,  H04J3/16

CPC classification number: H04Q11/0003 ,  H04B10/616 ,  H04J3/06 ,  H04J3/0608 ,  H04J3/1652 ,  H04J14/08 ,  H04J2203/0089 ,  H04J2203/0091 ,  H04Q11/00 ,  H04Q11/0066 ,  H04Q2011/0083

Abstract: A method may include generating, by a device, a set of bit masks associated with locating frame alignment signal (FAS) data. The set of bit masks may be utilized by multiple framer circuits associated with identifying a start of one more frames of multiple lower order Optical channel Data Unit (ODU) flows multiplexed in a higher order ODU flow. The method may include detecting, by the device, the FAS data at a particular byte location in a particular lower order ODU flow, of the multiple lower order ODU flows, based on the set of bit masks. The method may include identifying, by the device, the start of one or more frames of the particular lower order ODU flow based on detecting the FAS data. The one or more frames may be associated with an ITU-T G.709 Optical Transport Network frame based signal.

Abstract translation: 方法可以包括通过设备生成与定位帧对准信号（FAS）数据相关联的一组位掩码。 所述位掩码集合可以被多个成帧器电路利用，所述多个成帧器电路与识别以更高阶ODU流复用的多个低阶光信道数据单元（ODU）流的多个帧的开始相关联。 该方法可以包括基于该组位掩码来检测多个低阶ODU流中的特定低阶ODU流中的特定字节位置处的FAS数据。 该方法可以包括基于检测FAS数据来识别设备的特定低阶ODU流的一个或多个帧的开始。 一个或多个帧可以与基于ITU-T G.709光传输网络帧的信号相关联。

公开(公告)号：US20160173265A1

公开(公告)日：2016-06-16

申请号：US15049663

申请日：2016-02-22

Applicant: Corning Optical Communications Wireless Ltd

Inventor： Daniel Dadoun ,  Guy Lupescu

IPC: H04L5/22 ,  H04W56/00 ,  H04J3/06 ,  H04W52/02 ,  H04B3/02 ,  H04L5/14 ,  H04B7/26

CPC classification number: H04L5/22 ,  H04B3/02 ,  H04B7/2656 ,  H04J3/06 ,  H04L5/14 ,  H04W52/0229 ,  H04W56/001 ,  Y02D70/1262 ,  Y02D70/142 ,  Y02D70/146 ,  Y02D70/449

Abstract: Detecting uplink/downlink time-division duplexed (TDD) frame configurations in TDD communications signals to synchronize uplink communications from TDD communications units. In one example, embodiments disclosed herein involve detecting uplink/downlink time-division duplexed (TDD) frame configurations employed in downlink TDD communications signals transmitted from a TDD base station. The TDD base station may be configured to provide TDD communications according to a TDD frame to a distributed antenna system. The detected uplink/downlink TDD frame configuration of the downlink TDD communications signals can be used to determine time periods in the TDD frame when downlink communications transmissions are intended and uplink communications transmissions are intended. In this manner, a TDD distributed communications unit can synchronize transmission circuitry transmitting uplink TDD communications signals to the TDD base station in a different time slot(s) from reception of downlink TDD communication signals from the TDD base station to avoid or reduce data loss.

Abstract translation: 检测TDD通信信号中的上行链路/下行链路时分双工（TDD）帧配置，以同步来自TDD通信单元的上行链路通信。 在一个示例中，本文公开的实施例涉及检测从TDD基站发送的下行链路TDD通信信号中采用的上行链路/下行链路时分双工（TDD）帧配置。 TDD基站可以被配置为根据TDD帧向分布式天线系统提供TDD通信。 检测到的下行链路TDD通信信号的上行链路/下行链路TDD帧配置可以用于确定当期望下行链路通信传输并且期望上行链路通信传输时在TDD帧中的时间段。 以这种方式，TDD分布式通信单元可以在从TDD基站接收下行TDD通信信号的不同时隙中将发送上行TDD通信信号的传输电路同步到TDD基站，以避免或减少数据丢失。

公开(公告)号：US09258074B2

公开(公告)日：2016-02-09

申请号：US14626977

申请日：2015-02-20

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Minoru Kosaka

IPC: H04W4/00 ,  H04J3/16 ,  H04W56/00 ,  H04W72/04 ,  H04J3/06 ,  H04B7/26 ,  H04W74/08 ,  H04W92/18 ,  H04W84/12

CPC classification number: H04W72/042 ,  H04B7/265 ,  H04J3/06 ,  H04J3/1694 ,  H04W56/002 ,  H04W56/0035 ,  H04W72/0413 ,  H04W72/0446 ,  H04W72/0453 ,  H04W74/0816 ,  H04W84/12 ,  H04W92/18

Abstract: A wireless communication system that includes a base station and one or more terminals carries out wireless data communication by use of a first frequency band. The wireless communication system includes a wireless access system that employs a CSMA/CA and/or TDMA/TDD system as the wireless access system of the wireless communication system and a control signal at the first frequency band is periodically broadcasts from the base station, where the control signal includes a control information configured to manage wireless data transmission by the one or more terminals. In addition to the first frequency band, one or more frequency bands different from the first frequency band for the wireless data transmission by the one or more terminals can be allocate by the base station, where the control signal at the first frequency band indicate the location of the one or more frequency bands which can be used.

公开(公告)号：US20150296469A1

公开(公告)日：2015-10-15

申请号：US14685467

申请日：2015-04-13

Applicant: Innovative Technology Lab Co., Ltd.

Inventor： Sung Jun YOON

IPC: H04W56/00 ,  H04W76/02

CPC classification number: H04W56/0015 ,  H04J3/06 ,  H04W76/14

Abstract: Exemplary embodiments provide a method and apparatus for transmitting a synchronization signal for Device-to-Device (D2D) communication in a wireless communication system. With respect to a D2D synchronization source to transmit a synchronization signal for D2D communication, the method includes: generating a D2D Synchronization Signal (D2DSS); and transmitting, by a synchronization source, the D2DSS to a D2D reception (Rx) UE, wherein the D2DSS includes a Primary D2D Synchronization Signal (PD2DSS) generated based on information associated with the synchronization source.

Abstract translation: 示例性实施例提供了一种用于在无线通信系统中发送用于设备到设备（D2D）通信的同步信号的方法和装置。 对于D2D同步信号源发送用于D2D通信的同步信号，该方法包括：生成D2D同步信号（D2DSS）; 以及由同步源将D2DSS发送到D2D接收（Rx）UE，其中所述D2DSS包括基于与所述同步源相关联的信息生成的主D2D同步信号（PD2DSS）。

公开(公告)号：US09161295B2

公开(公告)日：2015-10-13

申请号：US13915340

申请日：2013-06-11

Applicant: LG ELECTRONICS INC.

Inventor： Seung Hee Han ,  Min Seok Noh ,  Yeong Hyeon Kwan

IPC: H04J11/00 ,  H04W48/16 ,  H04J3/06 ,  H04L5/00 ,  H04J13/00 ,  H04J13/16

CPC classification number: H04W56/001 ,  H04J3/06 ,  H04J3/0605 ,  H04J3/0611 ,  H04J11/0069 ,  H04J13/0055 ,  H04J13/16 ,  H04L5/0003 ,  H04L5/0007 ,  H04L5/0048 ,  H04L5/005 ,  H04W48/16 ,  H04W88/08

Abstract: A method for transmitting a signal for cell searching in a mobile communication system having a multi-cell environment includes transmitting the signal to one or more receiving party devices within a cell, wherein the signal is used for a synchronization of the one or more receiving party devices within the cell, the signal is defined by a combination of a first code sequence derived from a first index and a second code sequence derived from a second index, and an identity of the cell is used for defining the combination of the first code sequence and the second code sequence.

Abstract translation: 一种用于在具有多小区环境的移动通信系统中发送用于小区搜索的信号的方法包括将信号发送到小区内的一个或多个接收方设备，其中该信号用于一个或多个接收方的同步 信元是通过从第一索引导出的第一代码序列和从第二索引导出的第二代码序列的组合定义的，并且该单元的标识用于定义第一代码序列的组合 和第二个代码序列。