公开(公告)号：WO2014115091A1

公开(公告)日：2014-07-31

申请号：PCT/IB2014/058471

申请日：2014-01-22

Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)

Inventor： SAMUEL BEBAWY, Michael ,  GRANT, Stephen

IPC: H04B1/712 ,  H04B7/08 ,  H04B1/7115

CPC classification number: H04B1/712 ,  H04B7/0413 ,  H04B2201/709727

Abstract: A method of calculating combining weight vectors associated with a received composite information signal comprising at least one data stream transmitted from at least a first antenna and a second antenna is disclosed. The method starts with computing a parametric estimate of an impairment covariance matrix including at least a first impairment term associated with common pilots deployed by the first antenna and the second antenna respectively. The first impairment term captures effects of interferences between the common pilots, in addition to effects of interferences caused by each common pilot singly. The impairment covariance matrix further includes a data covariance term capturing effects of the at least one data stream and an interference term caused at least partially by contribution of thermal noise of receiver branches. Then the method computes the combining weight vector using the computed impairment covariance matrix.

Abstract translation: 公开了一种计算与包括从至少第一天线和第二天线发送的至少一个数据流的接收的复合信息信号相关联的加权矢量的方法。 该方法开始于计算损伤协方差矩阵的参数估计，该损伤协方差矩阵包括至少第一损伤项，分别由第一天线和第二天线部署的公共导频相关联。 第一个损伤条件除了每个共同飞行员单独造成的干扰影响之外，还可以捕捉到共同飞行员之间干扰的影响。 所述损害协方差矩阵还包括捕获所述至少一个数据流的影响的数据协方差项和至少部分地由接收器分支的热噪声的贡献引起的干扰项。 然后该方法使用计算的损伤协方差矩阵计算组合权重向量。

公开(公告)号：WO2011003744A3

公开(公告)日：2011-05-26

申请号：PCT/EP2010058966

申请日：2010-06-24

Applicant: ERICSSON TELEFON AB L M ,  DRUGGE OSKAR ,  KAZMI MUHAMMAD

Inventor： DRUGGE OSKAR ,  KAZMI MUHAMMAD

IPC: H04B1/707

CPC classification number: H04J11/0086 ,  H04B1/7103 ,  H04B2201/70702 ,  H04B2201/709727 ,  H04J11/005 ,  H04L5/0021 ,  H04L5/0028 ,  H04L5/0091

Abstract: A radio receiver uses a first receiver type for receiving data and/or control information on one or more secondary carrier channel(s) if one or more common channel(s) are transmitted on the corresponding secondary carrier. Otherwise, the radio receiver uses a second receiver type for receiving data and/or control information on one or more secondary carrier channel(s).

Abstract translation: 如果在相应的辅助载波上发送一个或多个公共信道，则无线电接收机使用第一接收机类型来在一个或多个辅助载波信道上接收数据和/或控制信息。 否则，无线电接收机使用第二接收机类型来在一个或多个辅助载波信道上接收数据和/或控制信息。

公开(公告)号：WO2010144004A1

公开(公告)日：2010-12-16

申请号：PCT/SE2009/050710

申请日：2009-06-11

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  WIGREN, Karl Torbjörn

Inventor： WIGREN, Karl Torbjörn

IPC: H04B1/707 ,  H04B17/00

CPC classification number: H04B1/712 ,  H04B1/7103 ,  H04B17/345 ,  H04B2201/709727

Abstract: A method for noise rise estimation in a wireless communication system comprises measuring (210) of received total wideband power a plurality of times and computing (212) of an estimate of a noise floor measure based on at least a number of the measured received total wideband powers. The method further comprises performing (214) of an interference whitening based on one of GRAKE, GRAKE+ and chip equalizer for a first user and determining (216) of a user equivalent total wideband power as an available total wideband power after the interference whitening for the first user. The estimate of a noise floor measure is compensated (218) for the interference whitening into a user equivalent noise floor measure and a noise rise measure for the first user is calculated (220) based at least on the user equivalent total wideband power and the user equivalent noise floor measure.

Abstract translation: 一种用于无线通信系统中的噪声上升估计的方法包括：多次测量（210）所接收的总宽带功率，并基于所测量的接收总宽带的至少一个数量，计算（212）噪声本底测量的估计值 权力。 该方法还包括基于第一用户的GRAKE，GRAKE +和码片均衡器之一执行（214）干扰白化，并且确定（216）用户等效总宽带功率作为对于所述干扰增白的可用总宽带功率 第一个用户 噪声本底测量的估计被补偿（218）用于干扰白化到用户等效噪声基底测量中，并且至少基于用户等效总宽带功率和用户来计算第一用户的噪声上升测量（220） 等效噪音测量。

公开(公告)号：WO2010004388A3

公开(公告)日：2010-12-02

申请号：PCT/IB2009005942

申请日：2009-06-15

Applicant: ERICSSON TELEFON AB L M ,  CAIRNS DOUGLAS A ,  FULGHUM TRACY ,  CHENG JUNG-FU

Inventor： CAIRNS DOUGLAS A ,  FULGHUM TRACY ,  CHENG JUNG-FU

IPC: H04L25/02 ,  H04B1/707 ,  H04L1/00 ,  H04L25/03 ,  H04L25/06 ,  H04L27/00 ,  H04L27/227 ,  H04L27/34 ,  H04L27/38

CPC classification number: H04L25/0236 ,  H04B2201/70701 ,  H04B2201/709727 ,  H04L1/0017 ,  H04L1/0041 ,  H04L1/0068 ,  H04L25/021 ,  H04L25/0226 ,  H04L25/03044 ,  H04L25/03324 ,  H04L25/061 ,  H04L27/0012 ,  H04L27/227 ,  H04L27/3455 ,  H04L27/3818 ,  H04L2001/0098 ,  H04L2025/03401 ,  H04L2025/0342 ,  H04L2025/03426 ,  H04L2025/03509 ,  H04L2025/03796 ,  H04L2027/0061 ,  H04L2027/0093

Abstract: A transmitter, channel coder, and method for coding and transmitting a sequence of symbols in a digital communication system utilizing soft pilot symbols. In one embodiment, the transmitter transmits a set of soft pilot symbols with higher reliability than the remaining symbols in the sequence by modulating the soft pilot symbols with a lower order modulation such as BPSK or QPSK while modulating the remaining symbols with a higher order modulation such as 16QAM or 64QAM. The transmitter shares the modulation type and location (time/frequency/code) of the soft pilot symbols with a receiver. Unlike traditional fixed pilots, the soft pilots still carry some data. Additionally, the soft pilots are particularly helpful in establishing the amplitude reference essential in demodulating the higher order modulation symbols. In another embodiment, soft pilot symbols are inserted by low-level puncturing of channel encoded bits and replacing the punctured bits with known bit patterns.

Abstract translation: 一种发射机，信道编码器以及用于在利用软导频符号的数字通信系统中编码和发射符号序列的方法。 在一个实施例中，通过用诸如BPSK或QPSK之类的较低阶调制来调制软导频符号，同时用较高阶调制来调制其余符号，发射机发送具有比该序列中的其余符号更高的可靠性的一组软导频符号 如16QAM或64QAM。 发射机与接收机共享软导频符号的调制类型和位置（时间/频率/码）。 与传统的固定飞行员不同，软飞行员仍然携带一些数据。 另外，软导频在建立解调高阶调制符号所必需的幅度参考时特别有用。 在另一个实施例中，通过对信道编码比特进行低级删余并用已知比特模式替换删余比特来插入软导频符号。

公开(公告)号：WO2010004388A2

公开(公告)日：2010-01-14

申请号：PCT/IB2009/005942

申请日：2009-06-15

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (publ) ,  CAIRNS, Douglas, A ,  FULGHUM, Tracy ,  CHENG, Jung-Fu

Inventor： CAIRNS, Douglas, A ,  FULGHUM, Tracy ,  CHENG, Jung-Fu

IPC: H04L25/02

CPC classification number: H04L25/0236 ,  H04B2201/70701 ,  H04B2201/709727 ,  H04L1/0017 ,  H04L1/0041 ,  H04L1/0068 ,  H04L25/021 ,  H04L25/0226 ,  H04L25/03044 ,  H04L25/03324 ,  H04L25/061 ,  H04L27/0012 ,  H04L27/227 ,  H04L27/3455 ,  H04L27/3818 ,  H04L2001/0098 ,  H04L2025/03401 ,  H04L2025/0342 ,  H04L2025/03426 ,  H04L2025/03509 ,  H04L2025/03796 ,  H04L2027/0061 ,  H04L2027/0093

Abstract: A transmitter, channel coder, and method for coding and transmitting a sequence of symbols in a digital communication system utilizing soft pilot symbols. In one embodiment, the transmitter transmits a set of soft pilot symbols with higher reliability than the remaining symbols in the sequence by modulating the soft pilot symbols with a lower order modulation such as BPSK or QPSK while modulating the remaining symbols with a higher order modulation such as 16QAM or 64QAM. The transmitter shares the modulation type and location (time/frequency/code) of the soft pilot symbols with a receiver. Unlike traditional fixed pilots, the soft pilots still carry some data. Additionally, the soft pilots are particularly helpful in establishing the amplitude reference essential in demodulating the higher order modulation symbols. In another embodiment, soft pilot symbols are inserted by low-level puncturing of channel encoded bits and replacing the punctured bits with known bit patterns.

Abstract translation: 一种用于使用软导频符号在数字通信系统中编码和发送符号序列的发射机，信道编码器和方法。 在一个实施例中，发射机通过以较低阶调制（诸如BPSK或QPSK）调制软导频符号，以较高阶调制方式调制剩余符号，发送比序列中其余符号更高的可靠性的一组软导频符号， 如16QAM或64QAM。 发射机与接收机共享软导频符号的调制类型和位置（时间/频率/码）。 与传统的固定飞行员不同，软飞行员仍然携带一些数据。 此外，软导频器在建立解调高阶调制符号时必不可少的幅度参考是特别有用的。 在另一个实施例中，通过信道编码比特的低级删截插入软导频符号，并用已知的比特模式替换穿孔比特。

公开(公告)号：WO2007133974A3

公开(公告)日：2008-12-24

申请号：PCT/US2007068266

申请日：2007-05-04

Applicant: TENSORCOMM ,  NAGARAJAN VIJAY ,  SCHARF LOUIS L ,  NARAYAN ANAND

Inventor： NAGARAJAN VIJAY ,  SCHARF LOUIS L ,  NARAYAN ANAND

IPC: H04B1/00

CPC classification number: H04B1/7107 ,  H04B1/712 ,  H04B2201/70703 ,  H04B2201/709727

Abstract: A receiver employs low-rate processing to synthesize the effect of high-rate interference in a received multi-rate signal. Each high-rate subchannel is analyzed on its low-rate descendents to produce symbol estimates for each low-rate symbol interval. The symbol estimates are applied to low-rate descendent subchannels, which are then combined to synthesize the effects of the high-rate interference. An interference canceller processes the synthesized interference with the received signal for producing an interference-cancelled signal. Alternatively, analogous steps may be applied at high-rate to analyze, synthesize, and cancel the effects of low-rate interference in a multi-rate signal.

Abstract translation: 接收机采用低速率处理来合成接收的多速率信号中的高速率干扰的影响。 在其低速率后代分析每个高速率子信道，以对每个低速率符号间隔产生符号估计。 符号估计适用于低速率后代子信道，然后将其合并，以合成高速率干扰的影响。 干扰消除器处理与接收信号的合成干扰以产生干扰消除信号。 或者，可以以高速率应用类似的步骤来分析，合成和消除多速率信号中的低速率干扰的影响。

公开(公告)号：WO2008154653A2

公开(公告)日：2008-12-18

申请号：PCT/US2008/066853

申请日：2008-06-13

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  WANG, Yi-ping Eric ,  ERIKSSON, Hakan Bengt ,  CAIRNS, Douglas A.

Inventor： WANG, Yi-ping Eric ,  ERIKSSON, Hakan Bengt ,  CAIRNS, Douglas A.

IPC: H04Q7/38

CPC classification number: H04L25/0242 ,  H04B1/71052 ,  H04B1/712 ,  H04B2201/709727 ,  H04L25/0208

Abstract: The technology comprises method(s) and apparatus for operating a telecommunications system. In its basic form the method comprises providing plural channelization codes for potential use by an uplink receiver; using unused channelization codes of the plural codes to generate an estimate of an impairment covariance matrix; and using the estimate of the impairment covariance matrix to form a processing parameter. For example, the processing parameter can be one or more weight values which, in turn, are can be used for generating a combined output signal.

Abstract translation: 该技术包括用于操作电信系统的方法和装置。 在其基本形式中，该方法包括提供用于上行链路接收机的潜在用途的多个信道化码; 使用所述多个代码的未使用的信道化码来生成损害协方差矩阵的估计; 并使用损伤协方差矩阵的估计来形成处理参数。 例如，处理参数可以是一个或多个加权值，其又可以用于产生组合的输出信号。

公开(公告)号：WO2008104466A2

公开(公告)日：2008-09-04

申请号：PCT/EP2008/051887

申请日：2008-02-15

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) ,  JONSSON, Elias ,  REIAL, Andres

Inventor： JONSSON, Elias ,  REIAL, Andres

IPC: H04B1/707 ,  H04B7/08

CPC classification number: H04W72/12 ,  H04B1/7103 ,  H04B1/712 ,  H04B7/0615 ,  H04B7/0669 ,  H04B7/0697 ,  H04B2201/70701 ,  H04B2201/709727 ,  Y02D70/40 ,  Y02D70/444

Abstract: The teachings herein disclose methods and apparatus that simplify impairment correlation estimation for received signal processing, based on determining, for any given processing interval, which impairment contributors should be considered in the estimation of overall received signal impairment correlations. These simplifications reduce computational processing requirements, allowing reduced circuit complexity and/or reduced operating power, and improve receiver performance. A corresponding transmitter and transmission method include transmitting multiple information streams to targeted receivers according to ongoing scheduling, and controlling the ongoing scheduling to reduce the number of impairment contributors considered in impairment correlation estimation at the targeted receivers. In one embodiment, a receiver identifies which impairment contributors to consider based on receiving control information. In another embodiment, the receiver identifies the impairment contributors to consider based on background processing, e.g., background determination of parametric model fitting parameters for a plurality of impairment contributors, and observing those model fitting parameters over time.

Abstract translation: 本文的教导公开了简化对接收信号处理的损害相关估计的方法和装置，其基于对于任何给定的处理间隔，在估计总体接收信号损害相关中应考虑哪些损害贡献者。 这些简化减少了计算处理要求，从而降低了电路复杂度和/或降低了操作功率，并提高了接收机性能。 相应的发射机和传输方法包括根据正在进行的调度向目标接收机发送多个信息流，并控制正在进行的调度，以减少目标接收机的损害相关估计中所考虑的损害贡献者的数量。 在一个实施例中，接收机基于接收控制信息识别要考虑的损害贡献者。 在另一个实施例中，接收机基于背景处理识别要考虑的损害贡献者，例如用于多个损害贡献者的参数模型拟合参数的背景确定，以及随着时间观察这些模型拟合参数。

公开(公告)号：WO2007037637A3

公开(公告)日：2008-08-14

申请号：PCT/KR2006003898

申请日：2006-09-28

Applicant: LG ELECTRONICS INC ,  KIM SANG GOOK ,  WANG SHU

Inventor： KIM SANG GOOK ,  WANG SHU

IPC: H04B1/707 ,  H04B7/02

CPC classification number: H04B1/7105 ,  H04B1/712 ,  H04B2201/70701 ,  H04B2201/709727 ,  H04J13/00 ,  H04L25/022 ,  H04L25/0226

Abstract: A method of determining at least one channel for channel response in a wireless communication system is disclosed. More specifically, the method comprises receiving a plurality of signals from a transmitting end, wherein the signals comprise a plurality of pilot symbols and a plurality of data symbols, determining weight value of each pilot symbol, assigning the determined each weight value to each pilot symbol, and demodulating each data symbol by using respective information of the weight value corresponding to each pilot symbol.

Abstract translation: 公开了一种在无线通信系统中确定至少一个信道用于信道响应的方法。 更具体地，该方法包括从发送端接收多个信号，其中信号包括多个导频符号和多个数据符号，确定每个导频符号的权重值，将确定的每个权重值分配给每个导频符号 并且通过使用与每个导频符号对应的权重值的相应信息来解调每个数据符号。

公开(公告)号：WO2008094091A2

公开(公告)日：2008-08-07

申请号：PCT/SE2007/050917

申请日：2007-11-29

Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

Inventor： CAIRNS, Douglas A

IPC: H04B1/707

CPC classification number: H04B1/712 ,  H04B1/7115 ,  H04B2201/709727 ,  H04L25/0212 ,  H04L25/0228 ,  H04L25/024

Abstract: Methods and apparatus are disclosed for calculating a channel response for use in received signal processing. In an exemplary embodiment, a method comprises calculating a channel response correlation matrix based on measured channel responses derived from pilot symbols in a received signal and forming (360) a traffic data correlation matrix based on measurements of traffic symbols in the received signal. The traffic data correlation matrix, the channel response correlation matrix, and the measured channel responses are used in an minimum mean-squared error (MMSE) estimation process to calculate (370) the channel response estimates. In one or more embodiments, the calculated channel response estimates comprise estimates of net channel response corresponding to signal processing delays in a G- RAKE receiver. An exemplary receiver circuit comprises a baseband processor (16) configured to calculate channel response estimates according to one or more of the disclosed methods.

Abstract translation: 公开了用于计算在接收信号处理中使用的信道响应的方法和装置。 在示例性实施例中，一种方法包括基于从接收信号中的导频符号导出的测量的信道响应来计算信道响应相关矩阵，并且基于接收到的信号中的业务符号的测量来形成（360）业务数据相关矩阵。 在最小均方误差（MMSE）估计过程中使用业务数据相关矩阵，信道响应相关矩阵和测量的信道响应来计算（370）信道响应估计。 在一个或多个实施例中，所计算的信道响应估计包括对应于G-RAKE接收机中的信号处理延迟的净信道响应的估计。 示例性接收机电路包括基带​​处理器（16），其被配置为根据所公开的方法中的一个或多个来计算信道响应估计。