公开(公告)号：US09231632B2

公开(公告)日：2016-01-05

申请号：US14288444

申请日：2014-05-28

申请人： GCT Semiconductor, Inc.

发明人： Young-Hwan Kang ,  Ji-Ho Jang ,  Dae-Seok Nam

IPC分类号： H04B7/02 ,  H04L1/02 ,  H04B1/12 ,  H04B7/08 ,  H04J11/00

CPC分类号： H04B1/12 ,  H04B7/0854 ,  H04J11/0036 ,  H04J11/005 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/024 ,  H04L25/03891

摘要： An interference canceller (500) includes an interference cancellation coefficient calculator (510) configured to calculate an interference cancellation coefficient using a received value located in a location of a reference signal (RS) from a channel estimate H calculated by a channel estimator and a received signal r delivered from an FFT, an interference cancellation filter (520) configured to cancel interference in the received signal and the channel estimate using the calculated interference cancellation coefficient, an increment or decrement operator (530) configured to increase or decrease the received signal and the channel estimate by λ times; an interference cancellation output controller (540) configured to receive a channel estimate before interference cancellation and a channel estimate after interference cancellation to compare a signal before the interference cancellation with a signal after the interference cancellation and then determine whether to deliver the signal before applying the interference cancellation or the signal after applying the interference cancellation, and a switch (550) configured to receive a control signal from the interference cancellation output controller (540).

摘要翻译： 干扰消除器（500）包括干扰消除系数计算器（510），其被配置为使用位于参考信号（RS）的位置的接收值，根据由信道估计器计算的信道估计H和接收到的信道估计量来计算干扰消除系数 从FFT传送的信号r，被配置为使用所计算的干扰消除系数来消除接收信号中的干扰和信道估计的干扰消除滤波器（520）;被配置为增加或减少接收信号的增量或减量运算符（530） 信道估计为λ倍; 干扰消除输出控制器（540），被配置为在干扰消除之前接收信道估计和干扰消除之后的信道估计，以将干扰消除之前的信号与干扰消除之后的信号进行比较，然后在应用干扰消除之前确定是否递送信号 干扰消除或施加干扰消除之后的信号;以及被配置为从干扰消除输出控制器（540）接收控制信号的开关（550）。

公开(公告)号：US09191836B2

公开(公告)日：2015-11-17

申请号：US14173042

申请日：2014-02-05

申请人： Rueywen Liu

发明人： Rueywen Liu

IPC分类号： H04W24/02 ,  H04B1/10 ,  H04B1/12 ,  H03H21/00 ,  H04B3/32

CPC分类号： H04W24/02 ,  H03H21/0027 ,  H04B1/10 ,  H04B1/109 ,  H04B1/12 ,  H04B1/126 ,  H04B3/32 ,  H04B17/336 ,  H04J11/003 ,  H04J11/0036

摘要： A system and method for mitigating interference in a physical layer is disclosed. The system may include a transmitter configured to transmit a message, the message having appended to it an interference signal and a receiver configured to receive the message from the transmitter. The receiver may also include a singular value decomposition filter receiver into which the message is input, the singular value decomposition filter receiver configured to use singular value decomposition data from the interference signal to recover the message from the transmitter while substantially eliminating the interference signal. The interference signal may be co-channel with the message and/or the interference signal may be dominant to the message.

摘要翻译： 公开了一种减轻物理层干扰的系统和方法。 系统可以包括被配置为发送消息的发射机，该消息具有附加到其上的干扰信号和被配置为从发射机接收消息的接收机。 接收机还可以包括输入消息的奇异值分解滤波器接收机，被配置为使用来自干扰信号的奇异值分解数据的奇异值分解滤波器接收器在基本上消除干扰信号的同时从发射机恢复消息。 干扰信号可以与消息共通道和/或干扰信号可能对消息是主要的。

公开(公告)号：US09185712B2

公开(公告)日：2015-11-10

申请号：US13468803

申请日：2012-05-10

申请人： Eswar Kalyan Vutukuri ,  Werner Kreuzer ,  David Philip Hole ,  René Faurie

发明人： Eswar Kalyan Vutukuri ,  Werner Kreuzer ,  David Philip Hole ,  René Faurie

IPC分类号： H04W72/08 ,  H04J11/00 ,  H04B1/10

CPC分类号： H04W72/082 ,  H04B1/10 ,  H04J11/0036

摘要： Methods, apparatus and articles of manufacture for single antenna interference cancellation in a mobile communication system are disclosed. An example method disclosed herein for a wireless device comprises determining a number of bursts to be received in a time division multiple access frame comprising a plurality of timeslots, and when the number of bursts exceeds a threshold number of bursts for which single antenna interference cancellation can be performed, performing single antenna interference cancellation for a subset of the bursts received in the time division multiple access frame.

摘要翻译： 公开了用于移动通信系统中的单天线干扰消除的方法，装置和制造方法。 本文公开的用于无线设备的示例性方法包括确定在包括多个时隙的时分多址帧中要接收的突发数量，并且当突发数超过单个天线干扰消除可以的突发的阈值数量时 执行在时分多址帧中接收的突发的子集的单天线干扰消除。

公开(公告)号：US09184877B1

公开(公告)日：2015-11-10

申请号：US12940778

申请日：2010-11-05

申请人： Jungwon Lee ,  Jihwan P. Choi

发明人： Jungwon Lee ,  Jihwan P. Choi

IPC分类号： H04L27/06 ,  H04L1/00 ,  H03M13/41 ,  H03M13/00

CPC分类号： H04L27/38 ,  H03M13/3905 ,  H03M13/3961 ,  H03M13/41 ,  H03M13/4107 ,  H03M13/6325 ,  H03M13/6502 ,  H03M13/6525 ,  H04J11/0036 ,  H04L1/0048 ,  H04L1/0054 ,  H04L27/3488

摘要： A received signal that includes a plurality of user signals is demodulated. The plurality of user signals includes at least a first user signal and a second user signal. The first user signal corresponds to first user data that has been modulated independently of second user data corresponding to the second user signal, and the first user signal is encoded with a first finite state machine encoder independently of the other user signals. The first finite state machine encoder has a number of states S1. The second user signal is encoded with a second finite state machine encoder independently of the other user signals, and the second finite state machine encoder has a number of states S2. Demodulating the received signal includes calculating distances between (i) each transmit symbol in the received signal and (ii) expected symbol values, wherein each expected symbol value corresponds to user data for multiple users including the first user and the second user. The first user data in the received signal is decoded based on the calculated distances utilizing a finite state machine decoder having S1 states.

摘要翻译： 解调包括多个用户信号的接收信号。 多个用户信号至少包括第一用户信号和第二用户信号。 第一用户信号对应于已经独立于与第二用户信号相对应的第二用户数据被调制的第一用户数据，并且第一用户信号与第一有限状态机编码器编码，独立于其他用户信号。 第一有限状态机编码器具有多个状态S1。 第二用户信号用独立于其他用户信号的第二有限状态机编码器编码，而第二有限状态机编码器具有多个状态S2。 解调接收到的信号包括计算（i）接收信号中的每个发送符号与（ii）预期符号值之间的距离，其中每个预期符号值对应于包括第一用户和第二用户的多个用户的用户数据。 使用具有S1状态的有限状态机解码器，基于计算出的距离来解码接收信号中的第一用户数据。

公开(公告)号：US09148860B2

公开(公告)日：2015-09-29

申请号：US14632353

申请日：2015-02-26

申请人： LG ELECTRONICS INC.

发明人： Dong Cheol Kim ,  Sung Ho Moon ,  Han Gyu Cho ,  Jae Hoon Chung

IPC分类号： H04W72/04 ,  H04W52/36 ,  H04J11/00 ,  H04L5/00 ,  H04W88/02

CPC分类号： H04W72/0413 ,  H04J11/0036 ,  H04L1/1812 ,  H04L5/0007 ,  H04L5/0053 ,  H04W52/34 ,  H04W52/365 ,  H04W52/367 ,  H04W72/042 ,  H04W72/0453 ,  H04W72/0473 ,  H04W72/12 ,  H04W88/02 ,  H04W88/08

摘要： A method and device for transmitting a power headroom report (PHR) by a user equipment (UE) in a communication system supporting a plurality of carriers. The method includes transmitting, to an eNode B (eNB), a power headroom report (PHR) related to the plurality of carriers configured for the UE. The power headroom report (PHR) comprises a first type power headroom (PH) and a second type power headroom (PH). While the first type power headroom (PH) is calculated for a power headroom report (PHR) related to a primary carrier and a non-primary carrier, the second type power headroom (PH) is calculated for a power headroom report (PHR) related to only the primary carrier. The second type power headroom (PH) is calculated for case of simultaneous transmission of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH).

摘要翻译： 一种用于在支持多个载波的通信系统中由用户设备（UE）发送功率余量报告（PHR）的方法和装置。 该方法包括向eNode B（eNB）发送与为UE配置的多个载波相关的功率余量报告（PHR）。 功率余量报告（PHR）包括第一类功率余量（PH）和第二类功率余量（PH）。 虽然为与主载波和非主载波相关的功率余量报告（PHR）计算第一类功率余量（PH），但是对于相关功率余量报告（PHR）计算第二类型功率余量（PH） 只有主要载体。 在物理上行链路控制信道（PUCCH）和物理上行链路共享信道（PUSCH）的同时发送的情况下计算第二类型功率余量（PH）。

公开(公告)号：US20150271831A1

公开(公告)日：2015-09-24

申请号：US14731122

申请日：2015-06-04

申请人： Huawei Technologies Co., Ltd.

发明人： Rui WANG ,  Rongdao YU

IPC分类号： H04W72/08 ,  H04B7/04 ,  H04B17/345 ,  H04W76/02

CPC分类号： H04W72/082 ,  H04B1/1027 ,  H04B7/04 ,  H04B7/0421 ,  H04B17/345 ,  H04J11/0036 ,  H04J2211/005 ,  H04L5/0023 ,  H04L5/0032 ,  H04L5/0048 ,  H04L25/03891 ,  H04W76/14 ,  H04W92/18

摘要： Embodiments of the present invention provide a method and a device for processing interference, wherein according to a first demodulation reference signal DMRS pilot symbol carried by a first subcarrier used by an uplink user equipment, an interference channel matrix of an uplink interference channel from the uplink user equipment to a D2D receiving end is measured, wherein the first subcarrier is a subcarrier shared by a D2D transmitting end and the uplink user equipment; a null space matrix of the uplink interference channel is calculated according to the interference channel matrix; and the signal received by the D2D receiving end via the first subcarrier is processed by using the null space matrix to eliminate an interference signal which comes from the uplink user equipment in the signal.

摘要翻译： 本发明的实施例提供了一种用于处理干扰的方法和装置，其中根据由上行用户设备使用的第一子载波承载的第一解调参考信号DMRS导频符号，来自上行链路的上行链路干扰信道的干扰信道矩阵 测量到D2D接收端的用户设备，其中第一子载波是由D2D发送端和上行用户设备共享的子载波; 根据干扰信道矩阵计算上行链路干扰信道的零空间矩阵; 并且通过使用零空间矩阵来处理由D2D接收端经由第一子载波接收的信号，以消除来自信号中的上行用户设备的干扰信号。

公开(公告)号：US20150092733A1

公开(公告)日：2015-04-02

申请号：US14567807

申请日：2014-12-11

申请人： EICES Research, Inc.

发明人： Peter D. Karabinis

IPC分类号： H04J11/00 ,  H04L27/26 ,  H04W72/04 ,  H04B7/08

CPC分类号： H04B1/04 ,  H03F3/24 ,  H04B7/0456 ,  H04B7/068 ,  H04B7/0842 ,  H04B7/0885 ,  H04B7/10 ,  H04B7/26 ,  H04B2001/0408 ,  H04J11/0036 ,  H04L5/0007 ,  H04L25/0204 ,  H04L25/0224 ,  H04L25/03006 ,  H04L25/03343 ,  H04L27/2627 ,  H04L27/2628 ,  H04L27/2633 ,  H04L27/2634 ,  H04L27/2647 ,  H04L27/265 ,  H04L2025/03414 ,  H04W72/046

摘要： Various embodiments of carrier aggregation are provided that increase communications capacity and throughput. According to some embodiments, a receiver may be configured with a plurality of receiver chains and, responsive to an aggregate bandwidth of an overall signal that is to be received by the receiver, a plurality of components of the overall signal, each comprising a bandwidth that is less than a frequency span of the overall signal, are received by a respective plurality of receiver chains. Accordingly, each component of the plurality of components of the overall signal may be received by a respective receiver chain of the plurality of receiver chains of the receiver thus avoiding bandwidth limitations associated with receiver elements.

摘要翻译： 提供了增加通信容量和吞吐量的载波聚合的各种实施例。 根据一些实施例，接收机可以配置有多个接收机链，并且响应于要由接收机接收的整个信号的总带宽，整个信号的多个分量，每个包括一个带宽， 小于整个信号的频率跨度，由相应的多个接收机链接收。 因此，整个信号的多个分量的每个分量可以由接收机的多个接收机链的相应接收机链接收，从而避免与接收机元件相关联的带宽限制。

公开(公告)号：US08976881B2

公开(公告)日：2015-03-10

申请号：US14235537

申请日：2012-07-19

申请人： Hiromichi Tomeba ,  Takashi Onodera ,  Hiroshi Nakano ,  Alvaro Ruiz Delgado

发明人： Hiromichi Tomeba ,  Takashi Onodera ,  Hiroshi Nakano ,  Alvaro Ruiz Delgado

IPC分类号： H04L27/28 ,  H04B7/04 ,  H04L25/02 ,  H04J11/00 ,  H04L27/26

CPC分类号： H04B7/0478 ,  H04B7/0456 ,  H04J11/0036 ,  H04J11/0063 ,  H04L25/0212 ,  H04L25/0224 ,  H04L25/025 ,  H04L27/2647

摘要： A data signal component output from a reference signal demultiplexer and channel state information obtained by using DM-RS output from a channel estimating unit are input into a modulo estimating unit. In a channel compensator, a first provisional decision value sequence is calculated on the basis of the channel state information. The first provisional decision value sequence is input into a modulo calculator, and modulo calculations are performed on the first provisional decision value sequence to obtain a second provisional decision value sequence. A decision-feedback channel estimating section finds a first channel estimation value based on the first provisional decision value sequence and a second channel estimation value based on the second provisional decision value sequence. A modulo decision section decides whether or not a perturbation term has been added to a code, and uses a decision result for the selection of a demodulation method.

摘要翻译： 从参考信号解复用器输出的数据信号分量和通过使用从信道估计单元输出的DM-RS获得的信道状态信息被输入到模估计单元中。 在信道补偿器中，基于信道状态信息来计算第一临时判定值序列。 第一临时判定值序列被输入到模运算器中，并且对第一临时判定值序列进行模运算以获得第二临时判定值序列。 判定反馈信道估计部基于第一临时判定值序列和基于第二临时判定值序列的第二信道估计值，求出第一信道估计值。 模决定部判定是否将扰动项添加到代码中，并且使用用于选择解调方法的判定结果。

公开(公告)号：US20150036621A1

公开(公告)日：2015-02-05

申请号：US14445655

申请日：2014-07-29

申请人： Electronics and Telecommunications Research Institute

发明人： Joon Woo SHIN

IPC分类号： H04L5/00 ,  H04W72/04

CPC分类号： H04L5/0094 ,  H04B7/0452 ,  H04B7/0639 ,  H04J11/0036 ,  H04J11/005 ,  H04L5/0026 ,  H04L5/0044 ,  H04L5/0051

摘要： Disclosed are methods for providing interference information in mobile communication systems. The method for providing interference information performed in a base station comprise obtaining information about at least one intra-cell interference signal interfering desired signals of a victim terminal, and transferring the information about at least one intra-cell interference signal to the victim terminal. In the method, the information about at least one intra-cell interference signal may include either information related to generation of reference signal for the at least one intra-cell interference signal or frequency resource allocation information and precoding matrix indicator (PMI) allocation information for the at least one intra-cell interference signal. Thus, the victim terminal may operate an advanced receiver based on the received information thereby canceling interferences efficiently.

摘要翻译： 公开了用于在移动通信系统中提供干扰信息的方法。 用于提供在基站中执行的干扰信息的方法包括获得关于至少一个小区内干扰信号干扰受害终端的干扰期望信号的信息，以及将关于至少一个小区内干扰信号的信息传送到受害终端。 在该方法中，关于至少一个小区内干扰信号的信息可以包括与生成用于至少一个小区内干扰信号的参考信号或频率资源分配信息相关的信息，以及用于 所述至少一个小区内干扰信号。 因此，受害终端可以基于接收的信息操作高级接收机，从而有效地消除干扰。

公开(公告)号：US20140355708A1

公开(公告)日：2014-12-04

申请号：US14288444

申请日：2014-05-28

申请人： GCT Semiconductor, Inc.

发明人： Young-Hwan Kang ,  Ji-Ho Jang ,  Dae-Seok Nam

IPC分类号： H04B1/12 ,  H04B7/04

CPC分类号： H04B1/12 ,  H04B7/0854 ,  H04J11/0036 ,  H04J11/005 ,  H04L25/0204 ,  H04L25/022 ,  H04L25/024 ,  H04L25/03891

摘要： An interference canceller (500) includes an interference cancellation coefficient calculator (510) configured to calculate an interference cancellation coefficient using a received value located in a location of a reference signal (RS) from a channel estimate H calculated by a channel estimator and a received signal r delivered from an FFT, an interference cancellation filter (520) configured to cancel interference in the received signal and the channel estimate using the calculated interference cancellation coefficient, an increment or decrement operator (530) configured to increase or decrease the received signal and the channel estimate by λ times; an interference cancellation output controller (540) configured to receive a channel estimate before interference cancellation and a channel estimate after interference cancellation to compare a signal before the interference cancellation with a signal after the interference cancellation and then determine whether to deliver the signal before applying the interference cancellation or the signal after applying the interference cancellation, and a switch (550) configured to receive a control signal from the interference cancellation output controller (540).

摘要翻译： 干扰消除器（500）包括干扰消除系数计算器（510），其被配置为使用位于参考信号（RS）的位置的接收值，根据由信道估计器计算的信道估计H和接收到的信道估计量来计算干扰消除系数 从FFT传送的信号r，被配置为使用所计算的干扰消除系数来消除接收信号中的干扰和信道估计的干扰消除滤波器（520）;被配置为增加或减少接收信号的增量或减量运算符（530） 信道估计为λ倍; 干扰消除输出控制器（540），被配置为在干扰消除之前接收信道估计和干扰消除之后的信道估计，以将干扰消除之前的信号与干扰消除之后的信号进行比较，然后在应用干扰消除之前确定是否递送信号 干扰消除或施加干扰消除之后的信号;以及被配置为从干扰消除输出控制器（540）接收控制信号的开关（550）。