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61. 发明申请

US20160128014A1 FREQUENCY CORRECTION IN A MULTI-CARRIER COMMUNICATION SYSTEM 审中-公开
公开(公告)号：US20160128014A1
公开(公告)日：2016-05-05
申请号：US14992903
申请日：2016-01-11
申请人： INTEL CORPORATION
发明人： LI XIAODING , LO TITUS
IPC分类号： H04W56/00 , H04L27/26
CPC分类号： H04W56/0035 , H04B7/015 , H04B17/24 , H04L27/2602
摘要： Methods and systems for correction of frequency errors in multi-carrier communication systems. The composite frequency error associated with the downlink signals are used to infer or derive the composite frequency error associated with the uplink signals, which are used to pre-compensate the uplink signals. Special signal components are transmitted by multiple base stations to facilitate frequency-error estimation and other system control functionalities at a mobile device. The mobile device carries out temporal, spatial, or spatial-temporal processing of the composite frequency errors associated with one or more base stations to determine the clock frequency error and the Doppler shift with respect to its serving base station.

62. 发明申请

US20150289282A1 DEVICE-TO-DEVICE COMMUNICATION 有权
标题翻译：设备到设备通信
公开(公告)号：US20150289282A1
公开(公告)日：2015-10-08
申请号：US14440429
申请日：2013-12-03
申请人： INTEL CORPORATION
发明人： Umesh Phuyal , Youn Hyoung Heo , Hyung-Nam Choi , Hong He
IPC分类号： H04W72/08 , H04W48/08 , H04W76/04 , H04W76/02 , H04L5/00 , H04W72/04
CPC分类号： H04W72/085 , H04B3/232 , H04B7/015 , H04L5/0048 , H04L5/14 , H04L25/00 , H04L25/03866 , H04L67/1068 , H04W8/005 , H04W48/08 , H04W56/00 , H04W72/0413 , H04W72/082 , H04W76/14 , H04W76/27
摘要： An apparatus is provided for a device-to-device, D2D, communication enabled user equipment, UE, comprising a processing section to determine, based on a signal received from another UE, a channel condition between the UE and the another UE; the UE to report the determined channel condition to an evolved Node B, eNB. The processing section is to initiate D2D communication based on a communication from the eNB, received in response to the report. Also, an apparatus is provided for a network element, comprising An input to receive a describing a channel condition between a first UE and a second UE; a processor to determine, based on the channel condition, whether or not D2D communication between the first UE and the second UE is to be enabled; and an output to output a result of the determination when the processor determines D2D communication is to be enabled. Related methods are also provided.
摘要翻译：提供了一种用于设备到设备的D2D通信使能的用户设备的UE，包括：处理部分，用于基于从另一个UE接收的信号来确定UE与另一个UE之间的信道状况; UE将确定的信道条件报告给演进的节点B，eNB。处理部分基于来自eNB的通信响应于该报告而发起D2D通信。另外，提供了一种用于网元的装置，包括：用于接收描述第一UE与第二UE之间的信道状态的输入; 处理器，用于基于所述信道条件来确定所述第一UE和所述第二UE之间的D2D通信是否被启用; 以及当处理器确定D2D通信被启用时，输出用于输出确定的结果。还提供了相关方法。

63. 发明申请

US20140003403A1 FREQUENCY CORRECTION IN A MULTI-CARRIER COMMUNICATION SYSTEM 有权
标题翻译：多载波通信系统中的频率校正
公开(公告)号：US20140003403A1
公开(公告)日：2014-01-02
申请号：US14017245
申请日：2013-09-03
申请人： Neocific, Inc.
发明人： Xiaodong Li , Titus Lo
IPC分类号： H04W56/00
CPC分类号： H04W56/0035 , H04B7/015 , H04B17/24 , H04L27/2602
摘要： Methods and systems for correction of frequency errors in multi-carrier communication systems. The composite frequency error associated with the downlink signals are used to infer or derive the composite frequency error associated with the uplink signals, which are used to pre-compensate the uplink signals. Special signal components are transmitted by multiple base stations to facilitate frequency-error estimation and other system control functionalities at a mobile device. The mobile device carries out temporal, spatial, or spatial-temporal processing of the composite frequency errors associated with one or more base stations to determine the clock frequency error and the Doppler shift with respect to its serving base station.
摘要翻译：多载波通信系统中频率误差校正的方法和系统。与下行链路信号相关联的复合频率误差用于推断或导出与上行链路信号相关联的复合频率误差，用于对上行链路信号进行预补偿。特殊信号分量由多个基站传输，以便于移动设备处的频率误差估计和其他系统控制功能。移动设备执行与一个或多个基站相关联的复合频率误差的时间，空间或时空处理，以确定相对于其服务基站的时钟频率误差和多普勒频移。

64. 发明授权

US08526411B2 Frequency correction in a multi-carrier communication system 有权
标题翻译：多载波通信系统中的频率校正
公开(公告)号：US08526411B2
公开(公告)日：2013-09-03
申请号：US13154331
申请日：2011-06-06
申请人： Xiaodong Li , Titus Lo
发明人： Xiaodong Li , Titus Lo
IPC分类号： H04B7/216
CPC分类号： H04W56/0035 , H04B7/015 , H04B17/24 , H04L27/2602
摘要： Methods and systems for correction of frequency errors in multi-carrier communication systems. The composite frequency error associated with the downlink signals are used to infer or derive the composite frequency error associated with the uplink signals, which are used to pre-compensate the uplink signals. Special signal components are transmitted by multiple base stations to facilitate frequency-error estimation and other system control functionalities at a mobile device. The mobile device carries out temporal, spatial, or spatial-temporal processing of the composite frequency errors associated with one or more base stations to determine the clock frequency error and the Doppler shift with respect to its serving base station.
摘要翻译：多载波通信系统中频率误差校正的方法和系统。与下行链路信号相关联的复合频率误差用于推断或导出与上行链路信号相关联的复合频率误差，用于对上行链路信号进行预补偿。特殊信号分量由多个基站传输，以便于移动设备处的频率误差估计和其他系统控制功能。移动设备执行与一个或多个基站相关联的复合频率误差的时间，空间或时空处理，以确定相对于其服务基站的时钟频率误差和多普勒频移。

65. 发明授权

US08355675B2 Apparatus and method for controlling frequency in mobile communication system 有权
标题翻译：移动通信系统中频率控制的装置和方法
公开(公告)号：US08355675B2
公开(公告)日：2013-01-15
申请号：US12365509
申请日：2009-02-04
申请人： Hee-Jin Roh , Sang-Min Bae
发明人： Hee-Jin Roh , Sang-Min Bae
IPC分类号： H04B1/00
CPC分类号： H04B7/015
摘要： An apparatus and a method for mitigating interference between uplink signals of a user equipment in a mobile communication system are provided. The apparatus includes a frequency regulator for, when fast movement of a user equipment is confirmed, changing a transmit frequency by calculating a frequency offset compensation value which compensates for a frequency required for a transmit frequency band.
摘要翻译：提供了一种用于减轻移动通信系统中的用户设备的上行链路信号之间的干扰的装置和方法。该装置包括频率调节器，用于当用户设备的快速移动被确认时，通过计算补偿发射频带所需频率的频率偏移补偿值来改变发射频率。

66. 发明申请

US20110235590A1 FREQUENCY CORRECTION IN MULTI-CARRIER COMMUNICATION SYSTEM 有权
标题翻译：多载波通信系统中的频率校正
公开(公告)号：US20110235590A1
公开(公告)日：2011-09-29
申请号：US13154331
申请日：2011-06-06
申请人： Xiaodong Li , Titus Lo
发明人： Xiaodong Li , Titus Lo
IPC分类号： H04W4/00
CPC分类号： H04W56/0035 , H04B7/015 , H04B17/24 , H04L27/2602
摘要： Methods and systems for correction of frequency errors in multi-carrier communication systems. The composite frequency error associated with the downlink signals are used to infer or derive the composite frequency error associated with the uplink signals, which are used to pre-compensate the uplink signals. Special signal components are transmitted by multiple base stations to facilitate frequency-error estimation and other system control functionalities at a mobile device. The mobile device carries out temporal, spatial, or spatial-temporal processing of the composite frequency errors associated with one or more base stations to determine the clock frequency error and the Doppler shift with respect to its serving base station.
摘要翻译：多载波通信系统中频率误差校正的方法和系统。与下行链路信号相关联的复合频率误差用于推断或导出与上行链路信号相关联的复合频率误差，用于对上行链路信号进行预补偿。特殊信号分量由多个基站传输，以便于移动设备处的频率误差估计和其他系统控制功能。移动设备执行与一个或多个基站相关联的复合频率误差的时间，空间或时空处理，以确定相对于其服务基站的时钟频率误差和多普勒频移。

67. 发明申请

US20100304679A1 Method and System For Echo Estimation and Cancellation 审中-公开
标题翻译：回波估计和取消方法与系统
公开(公告)号：US20100304679A1
公开(公告)日：2010-12-02
申请号：US12474061
申请日：2009-05-28
申请人： Hanks Zeng , Prakash Khanduri , Ken Kasiske , Ronish Patel , Nelson Sollenberger
发明人： Hanks Zeng , Prakash Khanduri , Ken Kasiske , Ronish Patel , Nelson Sollenberger
IPC分类号： H04B15/00
CPC分类号： H04M9/082 , H04B7/015 , H04M1/6066
摘要： Methods and systems for echo estimation and cancellation are disclosed and may include estimating combined echo return loss and echo return loss enhancement (ERL+ERLE). A subband gain vector may be calculated utilizing non-linear processing, subband analysis, and the estimated ERL+ERLE to mitigate residual echo. ERL+ERLE may be estimated by averaging a difference in DL and UL signals. A maximum value of ERL+ERLE may be determined over a period of time. A non-linear distortion adjustment factor may be estimated for ERL+ERLE. An ERL+ERLE estimation error may be calibrated specific to the wireless device. The estimating of ERL+ERLE may be suspended briefly after a transition in the DL or UL signals. Comfort noise may be added to mask the residual echo, which may be mitigated following a dual echo canceller. The estimating may be suspended when the DL signal is not present. A noise level may be included in the gain calculation.
摘要翻译：公开了用于回波估计和消除的方法和系统，并且可以包括估计组合的回波回波损耗和回波回波损耗增强（ERL + ERLE）。可以使用非线性处理，子带分析和估计的ERL + ERLE来计算子带增益矢量以减轻残余回波。可以通过对DL和UL信号中的差进行平均来估计ERL + ERLE。 ERL + ERLE的最大值可以在一段时间内确定。可以对ERL + ERLE估计非线性失真调整因子。 ERL + ERLE估计误差可能会针对无线设备进行校准。 ERL + ERLE的估计可以在DL或UL信号转换后暂时暂停。可以添加舒适噪声来掩蔽残留回波，这可以在双回波消除器之后被缓解。当DL信号不存在时，可以暂停估计。噪声电平可能包含在增益计算中。

68. 发明授权

US06487179B1 Methods for preventing and detecting message collisions in a half-duplex communication system 有权
标题翻译：用于在半双工通信系统中预防和检测消息冲突的方法
公开(公告)号：US06487179B1
公开(公告)日：2002-11-26
申请号：US09677499
申请日：2000-10-02
申请人： Nikolai K. N. Leung
发明人： Nikolai K. N. Leung
IPC分类号： H04B320
CPC分类号： H04N1/32619 , H04B7/015 , H04L1/1887 , H04N1/00281 , H04N1/32614 , H04N1/32641 , H04N1/32646 , H04N1/32683 , H04N1/327 , H04N2201/0015 , H04W24/00 , H04W74/0816 , H04W74/0825
摘要： In a half-duplex communication system in which additional delays in the communication channel may cause a message collision between a message and a response, a collision detector is utilized to prevent and detect message collisions. The collision detector determines if a response may be transmitted from the communication device while it is receiving the current message. If no response is expected, the collision detector is placed into a train mode. If a response is possible, the collision detector is placed into the monitor mode. In the monitor mode, the collision detector monitors the communication channel and determines if a message collision has occurred during transmission of the message. A detection of a message collision causes retransmission of the message or possibly a new message at a later time after it has been determined that the communication channel is clear.
摘要翻译：在通信信道中的附加延迟可能导致消息与响应之间的消息冲突的半双工通信系统中，利用冲突检测器来防止和检测消息冲突。冲突检测器确定在接收当前消息时是否可以从通信设备发送响应。如果没有预期的响应，则将碰撞检测器置于列车模式。如果可以进行响应，则将碰撞检测器置于监视模式。在监视模式中，碰撞检测器监视通信信道，并确定消息传输过程中是否发生了消息冲突。在确定通信信道清楚之后，消息冲突的检测在稍后的时间引起消息的重传或可能的新消息。

69. 发明授权

US5969567A Circuit configuration for line adaptation and echo suppression 失效
标题翻译：线路适应和回波抑制的电路配置
公开(公告)号：US5969567A
公开(公告)日：1999-10-19
申请号：US824442
申请日：1997-03-26
申请人： Alexander Kahl , Peter Caldera , Joerg Hauptmann , Franz Dielacher
发明人： Alexander Kahl , Peter Caldera , Joerg Hauptmann , Franz Dielacher
IPC分类号： H04B3/23 , H04B7/015 , H03K5/00
CPC分类号： H04B7/015 , H04B3/23
摘要： A circuit configuration for line adaptation and echo suppression includes a balance filter which is triggered by transmission signals and supplies output signals that are linked through a subtractor to a reception signal. An impedance adaptation filter is triggered by the reception signal and supplies an output signal that is linked through an adder to the transmission signal. An analog/digital converter converts analog reception signals into digital reception signals. A digital/analog converter converts digital transmission signals into analog transmission signals. The impedance adaptation filter processes digital signals and the balance filter processes analog signals.
摘要翻译：用于线路适应和回波抑制的电路配置包括平衡滤波器，其由传输信号触发并且将通过减法器链接的输出信号提供给接收信号。阻抗适配滤波器由接收信号触发，并将通过加法器链接的输出信号提供给发送信号。模拟/数字转换器将模拟接收信号转换为数字接收信号。数字/模拟转换器将数字传输信号转换为模拟传输信号。阻抗适配滤波器处理数字信号，平衡滤波器处理模拟信号。

70. 发明授权

US5617450A Digital subscriber loop interface unit 失效
标题翻译：数字用户回路接口单元
公开(公告)号：US5617450A
公开(公告)日：1997-04-01
申请号：US288358
申请日：1994-08-10
申请人： Mitsuo Kakuishi , Yutaka Awata , Nobukazu Koizumi
发明人： Mitsuo Kakuishi , Yutaka Awata , Nobukazu Koizumi
IPC分类号： H03H15/00 , H03H17/00 , H03H17/04 , H03H21/00 , H04B3/06 , H04B3/23 , H04B7/015 , H04L25/03 , H04L25/49 , H03H7/30
CPC分类号： H04L25/4919 , H03H17/06 , H04B7/015 , H04L25/03057
摘要： A digital subscriber loop interface unit, connected to a digital subscriber loop, includes an echo canceler for carrying out a echo canceling operation, a decision feedback equalizer for carrying out an equalizing operation, and a transversal filter, provided in at least one of the echo canceler and the decision feedback equalizer, in which a plurality of taps among all taps are grouped into groups, each group including a predetermined number of taps continuously arranged, a single tap coefficient being assigned to the taps in each group. A digital subscriber loop interface unit may include an echo canceler for carrying out a echo canceling operation by using a value obtained by adding +1 to a symbol value represented by a 2B1Q code. Further, the echo canceler may have a jitter echo canceler in which a convolution operation is carried out by using a value obtained by adding +1 to a symbol value represented by the 2B1Q code, the tap coefficient used in the convolution operation is changed in accordance with a time elapsing from occurrence of the jitter. Furthermore, a digital subscriber loop interface unit may have a low-pass filter in which a filter coefficient is changed based on whether the decision feedback equalizer is in or after a pull-in step.
摘要翻译：连接到数字用户环路的数字用户环路接口单元包括用于执行回波消除操作的回波消除器，用于执行均衡操作的判决反馈均衡器和在至少一个回波中提供的横向滤波器消除器和决策反馈均衡器，其中所有抽头中的多个抽头被分组成组，每个组包括连续布置的预定数量的抽头，单个抽头系数被分配给每个组中的抽头。数字用户环路接口单元可以包括回波消除器，用于通过使用通过将+1加到由2B1Q码表示的符号值获得的值来执行回波消除操作。此外，回波消除器可以具有抖动回波消除器，其中通过使用通过将+1加到由2B1Q码表示的符号值获得的值来执行卷积运算，卷积运算中使用的抽头系数根据随着抖动发生的时间逐渐消逝。此外，数字用户环路接口单元可以具有低通滤波器，其中基于判决反馈均衡器是否在拉入步骤中或之后改变滤波器系数。

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