公开(公告)号：JP5624135B2

公开(公告)日：2014-11-12

申请号：JP2012518876

申请日：2010-06-24

IPC: H04B7/08 ,  H04B1/10 ,  H04B1/7097

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

公开(公告)号：JP5607615B2

公开(公告)日：2014-10-15

申请号：JP2011514141

申请日：2009-06-15

Applicant: テレフオンアクチーボラゲット エル エム エリクソン(パブル)

Inventor： ケアンズ、ダグラス、エー ,  フルハム、トレイシー ,  チェン、ユン−フ

IPC: H04L27/36 ,  H04L27/01 ,  H04L27/20

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

公开(公告)号：JP5450398B2

公开(公告)日：2014-03-26

申请号：JP2010511400

申请日：2008-06-09

Applicant: テレフオンアクチーボラゲット エル エム エリクソン(パブル)

Inventor： フルガム，トレイシー ,  ボトムレイ，イー．グレゴリー ,  ワン，イ−ピン，エリック

IPC: H04B1/712 ,  H04B1/707

CPC classification number: H04B1/71052 ,  H04B1/712 ,  H04B2201/709727

公开(公告)号：JP2013240102A

公开(公告)日：2013-11-28

申请号：JP2013156604

申请日：2013-07-29

Applicant: Telefon Ab L M Ericsson ,  テレフオンアクチーボラゲット エル エム エリクソン(パブル)

Inventor： DOUGLAS A CAIRNS ,  ELIAS JONSSON

IPC: H04L27/34 ,  H04B1/7117 ,  H04B1/712 ,  H04L27/01

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: PROBLEM TO BE SOLVED: To provide a receiver and a method for receiving and processing a series of symbols transmitted in a digital communication system utilizing soft pilot symbols.SOLUTION: Since the remaining symbols in a series are modulated by a high-order modulation method of 16QAM, 64QAM, or the like, and soft pilot symbols are modulated by a lower-order modulation method of BPSK, QPSK, or the like, a soft pilot symbol set is transmitted with reliability higher than that of the remaining symbols in a series. A modulation system and a position (time/frequency/code) of the soft pilot symbol set are known for a receiver, and the receiver demodulates the soft pilot symbol at first, and uses as a known symbol thus estimating parameters of a received wireless signal. The soft pilot carries data furthermore. In addition, the soft pilot is especially useful for establishing an amplitude reference essential for demodulation of higher-order modulation symbols.

Abstract translation: 要解决的问题：提供一种用于接收和处理利用软导频符号在数字通信系统中发送的一系列符号的接收机和方法。解决方案：由于一系列中的剩余符号由高阶调制方法 16QAM，64QAM等，并且通过BPSK，QPSK等的低阶调制方法来调制软导频符号，从而可靠地发送比其余符号的序列更可靠的软导频符号集。 接收机已知软导频符号集的调制系统和位置（时间/频率/码），接收机首先对软导频符号进行解调，并将其用作已知符号，从而估计接收到的无线信号的参数 。 软导频进一步传送数据。 另外，软导频对于建立高阶调制符号解调所需的幅度参考是特别有用的。

公开(公告)号：JP5346074B2

公开(公告)日：2013-11-20

申请号：JP2011504962

申请日：2009-03-31

Applicant: テレフオンアクチーボラゲット エル エム エリクソン(パブル)

Inventor： エス． カイララー、アリ ,  フルガム、トレイシー ,  コッゾ、カルメラ

IPC: H04B1/10 ,  H04B1/7107

CPC classification number: H04B1/7105 ,  H04B1/71072 ,  H04B1/712 ,  H04B2201/709727

Abstract: Methods and apparatus for processing a composite communication signal comprising two or more received signals of interest are disclosed. An interference-suppressing receiver, which may comprise a G-Rake receiver or a linear chip equalizer, utilizes a square-root covariance matrix in processing received signals, where the square-root covariance matrix represents impairment covariance or data covariance for the composite communication signal. In an exemplary method, a receiver detects symbols, corresponding to a signal of interest, from the composite communication signal, using processing weights calculated from a square-root covariance matrix and a net channel response for the signal of interest. The method further comprises calculating a reconstructed version of the signal of interest from the detected first symbols, generating an updated communication signal by subtracting the reconstructed version of the first signal of interest from the composite communication signal, and updating the square-root covariance matrix to obtain an updated square-root covariance matrix.

公开(公告)号：JP5089403B2

公开(公告)日：2012-12-05

申请号：JP2007555555

申请日：2006-02-22

Applicant: テレフオンアクチーボラゲット エル エム エリクソン(パブル)

Inventor： ケアンズ，ダクラス，エー

IPC: H04L27/38 ,  H04B7/005

CPC classification number: H04W52/16 ,  H04B1/712 ,  H04B17/336 ,  H04B2201/70701 ,  H04B2201/709727 ,  H04L25/067 ,  H04L27/08

公开(公告)号：JP4991870B2

公开(公告)日：2012-08-01

申请号：JP2009534534

申请日：2006-10-27

Applicant: テレフオンアクチーボラゲット エル エム エリクソン(パブル)

Inventor： リンドグレーン、ウルフ

IPC: H04B1/7115 ,  H04B1/707 ,  H04J99/00

CPC classification number: H04L25/03993 ,  H04B1/7115 ,  H04B2201/709727 ,  H04L2025/03426

公开(公告)号：JP2012142979A

公开(公告)日：2012-07-26

申请号：JP2012047183

申请日：2012-03-02

Applicant: Telefon Ab L M Ericsson ,  テレフオンアクチーボラゲット エル エム エリクソン(パブル)

Inventor： LENNART ANDERSSON ,  WANG YI-PIN ERIC ,  GREGORY E BOTTOMLEY

IPC: H04W52/16 ,  H04W52/20 ,  H04W52/22 ,  H04W52/28 ,  H04W52/32

CPC classification number: H04W52/286 ,  H04B2201/709727 ,  H04W52/16 ,  H04W52/325

Abstract: PROBLEM TO BE SOLVED: To dissolve the complexity of inner/outer loop electric power control in using a fractional dedicated physical channel (F-DPCH).SOLUTION: Based on a signal strength or quality of a standard channel signal, and an estimate value of a gain factor about a control channel signal and the standard channel signal, an electric power control feedback of the control channel signal received together with the standard channel signal is generated. As a non-restrictive example shown in a context of extensive belt CDMA (WCDMA (R)), the standard channel signal includes a common pilot channel (CPICH) signal, and the control channel signal includes an F-DPCH signal to be transmitted by an electric power gain (unknown) to the CPICH signal.

Abstract translation: 要解决的问题：解决使用分数专用物理信道（F-DPCH）时内/外环电功率控制的复杂性。 解决方案：基于标准通道信号的信号强度或质量以及关于控制信道信号和标准通道信号的增益因子的估计值，控制信道信号的电功率控制反馈与 产生标准通道信号。 作为在宽带CDMA（WCDMA）的上下文中示出的非限制性示例，标准信道信号包括公共导频信道（CPICH）信号，并且控制信道信号包括将被发送的F-DPCH信号 CPICH信号的电力增益（未知）。 版权所有（C）2012，JPO＆INPIT

公开(公告)号：JP4981035B2

公开(公告)日：2012-07-18

申请号：JP2008511639

申请日：2006-05-18

Applicant: テレフオンアクチーボラゲット エル エム エリクソン(パブル)

Inventor： アンダーソン，レナート ,  ボトムレイ，グレゴリー，イー． ,  ワン，イ−ピン，エリック

IPC: H04W52/32 ,  H04W52/12 ,  H04W52/16 ,  H04W52/24 ,  H04W52/28 ,  H04W52/58

CPC classification number: H04W52/286 ,  H04B2201/709727 ,  H04W52/16 ,  H04W52/325

公开(公告)号：JP4757259B2

公开(公告)日：2011-08-24

申请号：JP2007515838

申请日：2005-06-10

Applicant: テレフオンアクチーボラゲット エル エム エリクソン(パブル)

Inventor： ワレン，アンダーズ

IPC: H04B1/7097 ,  H04L1/20 ,  H04L27/00

CPC classification number: H04B1/10 ,  H04B2201/709727 ,  H04L1/20 ,  H04L2027/0065

Abstract: A receiver circuit provides improved noise estimation processing by at least partially removing receiver frequency error bias. An initial noise estimate is compensated using an error term based on the observed receiver frequency error, and the resulting compensated noise estimate can be used to improve other signal processing in the receiver. For example, the receiver may use compensated noise estimates to generate signal quality estimates, e.g., Signal-to-Interference (SIR) estimates, having improved accuracy. Additionally, or alternatively, the receiver may use the compensated noise estimates to generate RAKE combining weights having improved noise suppression characteristics. In an exemplary embodiment, the initial noise estimate is a noise correlation matrix generated from a received reference signal, e.g., pilot symbols, and the error term is an error matrix directly generated using the observed receiver frequency error and channel estimates taken from the reference signal.