公开(公告)号：EP1838030A3

公开(公告)日：2011-08-03

申请号：EP06025649.2

申请日：2006-12-12

申请人： Samsung Electronics Ltd.

发明人： Ko, Seong-Yun ,  Youn, Myeon-Kee ,  Park, Joo-Yong

IPC分类号： H04L5/02 ,  H04L27/26 ,  H04L25/02 ,  H04J11/00 ,  H04L25/03 ,  H04L5/00

CPC分类号： H04L25/03159 ,  H04J11/0043 ,  H04L5/0007 ,  H04L25/03821 ,  H04L2025/03426 ,  H04L2027/003

摘要： An uplink signal receiving method and apparatus using successive interference cancellation (SIC) in a wireless transmission system based on Orthogonal Frequency Division Multiple Access (OFDMA) are provided. The uplink signal receiving method includes storing in a provisional storage each uplink intermediate frequency (IF) signal received through an antenna of a base station and subjected to analog-to-digital conversion; analyzing the uplink IF signals stored in the provisional storage and determining a terminal to be restored; converting a data symbol of the determined terminal to be restored from a time domain into a frequency domain; performing channel/phase correction on the converted data symbol; demodulating the corrected data symbol; determining if there is a terminal to be restored; and when there is a terminal to be restored, removing the demodulated data symbol of the terminal to be restored from the temporarily stored uplink IF signals and then updating the uplink IF signals; thereby, to reducing interference between sub-carriers of the terminals caused by deviation of a center frequency of the sub-carriers of terminals constituting the uplink signal in the OFDMA-based wireless transmission system.

公开(公告)号：EP2334020A1

公开(公告)日：2011-06-15

申请号：EP11160770.1

申请日：2007-03-30

申请人： SONY DEUTSCHLAND GMBH

发明人： Wang, Zhaocheng ,  Uno, Masahiro

IPC分类号： H04L25/03

CPC分类号： H04L25/03159 ,  H04L27/2607 ,  H04L2025/03522

摘要： The present invention relates to a method for transmitting a wireless communication signal and a transmitter for wireless communication systems, whereby said communication signal comprises a temporal frame structure. The proposed method comprises a step of forming frames of said frame structure, a frame of said frame structure comprising a guard interval and a data frame, wherein a guard interval comprises at least two pseudorandom-noise sequences, wherein at least two of said at least two pseudorandom-noise sequences are different to each other, and wherein a remaining part of said guard interval is situated before and/or after said at least two pseudorandom-noise sequences.

摘要翻译： 本发明涉及无线通信信号的发送方法和无线通信系统的发送机，由此所述通信信号包括时间帧结构。 所提出的方法包括形成所述帧结构的帧的步骤，所述帧结构的帧包括保护间隔和数据帧，其中保护间隔包括至少两个伪随机噪声序列，其中所述至少两个至少 两个伪随机噪声序列彼此不同，并且其中所述保护间隔的剩余部分位于所述至少两个伪随机噪声序列之前和/或之后。

公开(公告)号：EP2293615A1

公开(公告)日：2011-03-09

申请号：EP09762421.7

申请日：2009-06-04

申请人： Sharp Kabushiki Kaisha

发明人： NAKAMURA, Osamu ,  KUBOTA, Minoru ,  HAMAGUCHI, Yasuhiro ,  TO, Shimpei ,  YOKOMAKURA, Kazunari

IPC分类号： H04W16/26 ,  H04B7/155 ,  H04W88/06 ,  H04W88/10

CPC分类号： H04B7/2606 ,  H04L1/0003 ,  H04L1/0056 ,  H04L5/0044 ,  H04L25/03159 ,  H04L27/0008 ,  H04L2025/03414

摘要： It is aimed to expand a coverage area of a transmission apparatus by relay, while improving spectral efficiency (cell throughput). A relay apparatus for transmitting a signal received from a transmission apparatus to a reception apparatus has a received signal processing section 33 that demodulates a signal received from the transmission apparatus, a selecting section 34 that selects a transmission scheme enabling the reception apparatus to demodulate from among a plurality of transmission schemes, and signal generating sections 35a and 35b that generate a signal used in the transmission scheme selected by the selecting section 34 based on the signal demodulated by the received signal processing section 33.

摘要翻译： 旨在通过中继扩展传输装置的覆盖区域，同时提高频谱效率（小区吞吐量）。 用于将从发送装置接收的信号发送到接收装置的中继装置具有对从发送装置接收到的信号进行解调的接收信号处理部33;选择部34，其选择使接收装置能够从 多个发送方式以及信号生成部35a，35b，根据由接收信号处理部33解调出的信号，生成由选择部34选择的发送方式中使用的信号。

公开(公告)号：EP2293508A1

公开(公告)日：2011-03-09

申请号：EP10190984.4

申请日：2004-08-06

申请人： Panasonic Corporation

发明人： Koga, Hisao ,  Kodama, Nobutaka ,  Konishi, Taisuke

IPC分类号： H04L27/26 ,  H04L1/00 ,  H04L27/00 ,  H04L5/00

CPC分类号： H04L27/2601 ,  H04B3/54 ,  H04B14/023 ,  H04B2203/5416 ,  H04B2203/5425 ,  H04B2203/5491 ,  H04L1/0009 ,  H04L1/18 ,  H04L5/0046 ,  H04L25/022 ,  H04L25/03159 ,  H04L27/0004 ,  H04L2025/03414

摘要： A communication apparatus has an A/D converter which converts an analog signal which was received, into a digital signal, a converter which converts a reception signal so as to enable handling of phase information, a carrier detector which detects presence or absence of the reception signal, a synchronous circuit which extract synchronization timing from the reception signal, an equalizer which corrects the reception signal so as to cancel influence of a transmission path, a transmission path estimator which estimates a state of a power line transmission path, and a judging unit which judges the reception signal, which was amended by the equalizer, by use of a threshold value.

摘要翻译： 通信装置具有将接收到的模拟信号转换为数字信号的A / D转换器，转换器，其转换接收信号以使得能够处理相位信息;载波检测器，其检测接收的存在或不存在 信号，从接收信号提取同步定时的同步电路，校正接收信号以消除传输路径的影响的均衡器，估计电力线传输路径的状态的传输路径估计器，以及判断单元 其通过使用阈值来判断由均衡器修改的接收信号。

公开(公告)号：EP1932306B1

公开(公告)日：2011-03-09

申请号：EP06824883.0

申请日：2006-08-31

申请人： Qualcomm Incorporated

发明人： GAAL, Peter

IPC分类号： H04L25/03 ,  H04L25/02

CPC分类号： H04L25/0212 ,  H04L25/022 ,  H04L25/0224 ,  H04L25/03019 ,  H04L25/03159 ,  H04L2025/0377

摘要： A channel estimator is configured to determine channel estimate parameters indicative of characteristics of a wireless communication channel based on a received signal comprising a known transmitted signal and a noise signal. The channel estimator is configured to apply, to the received signal, a frequency domain representation inverse of a combination of a known signal factor as a function of frequency and a noise factor.

公开(公告)号：EP2289213A2

公开(公告)日：2011-03-02

申请号：EP09765648.2

申请日：2009-06-22

申请人： Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

发明人： JAECKEL, Stephan ,  JUNGNICKEL, Volker ,  SCHIERL, Thomas ,  HELLGE, Kornelius ,  HAUSTEIN, Thomas

IPC分类号： H04L27/18

CPC分类号： H04L1/0017 ,  H03M13/356 ,  H04L1/0003 ,  H04L1/007 ,  H04L1/0625 ,  H04L5/0048 ,  H04L5/0064 ,  H04L25/022 ,  H04L25/03159 ,  H04L27/183 ,  H04L27/2604 ,  H04L27/3488 ,  H04L65/607 ,  H04L2001/0098 ,  H04N19/33

摘要： An apparatus for assigning transmission symbols to a media data stream of information symbols is described, said media data stream encompassing a first partial stream for representing a media content at a basic quality and a second partial stream including additional data for representing the media content along with the first partial stream at an improved quality. The apparatus comprises a first device for assigning first transmission symbols to the information symbols of the first partial stream and a second device for assigning second transmission symbols to the information symbols of the second partial stream, the first transmission symbols being transmissible via a transmission channel having a lower error probability than the transmission channel via which the second transmission symbols can be transmitted.

公开(公告)号：EP2271010A1

公开(公告)日：2011-01-05

申请号：EP09734503.7

申请日：2009-04-22

申请人： Osaka University ,  Sharp Kabushiki Kaisha

发明人： IBI, Shinsuke ,  SAMPEI, Seiichi ,  MIYAMOTO, Shinichi ,  YOKOMAKURA, Kazunari ,  KUBOTA, Minoru ,  HAMAGUCHI, Yasuhiro ,  TO, Shimpei ,  NAKAMURA, Osamu

IPC分类号： H04J11/00 ,  H04B7/005 ,  H04J1/00 ,  H04L27/01

CPC分类号： H04J11/00 ,  H04L25/03159 ,  H04L25/03834 ,  H04L27/2614 ,  H04L27/2626 ,  H04W52/24 ,  H04W52/346

摘要： A clipping rate is controlled in spectrum shaping according to a propagation path to thereby improve transmission characteristics and perform communication at a stable transmission rate.
Propagation path characteristics are detected by a propagation path information detection unit 5 for detecting propagation path information fed back from a base station device and a water filling principle for distributing energy by a primary spectrum shaping unit 6 according to the propagation path characteristics is applied to transmission spectrum obtained by a DFT unit 4. Clipping information in secondary spectrum shaping fed back from the base station device is detected by a clipping information detection unit 7 to perform the secondary spectrum shaping by a secondary spectrum shaping unit 8. At this time, with the clipping rate by the secondary spectrum shaping unit 8, clipping rates of all transmission devices multiplexed in a scheduling unit 26 of the base station device are controlled adaptively.

摘要翻译： 根据传播路径在频谱整形中控制限幅率，从而提高传输特性，并以稳定的传输速率进行通信。 传播路径特性由用于检测从基站装置反馈的传播路径信息的传播路径信息检测单元5检测，并且根据传播路径特性将主频谱整形单元6分配能量的灌水原理应用于传输 由DFT单元4获得的频谱。由限幅信息检测单元7检测从基站装置反馈的二次频谱整形中的剪辑信息，以由次频谱整形单元8执行二次频谱整形。此时， 通过二次频谱整形单元8的削波率，自适应地控制在基站装置的调度单元26中复用的所有发送装置的削波率。

公开(公告)号：EP2259522A2

公开(公告)日：2010-12-08

申请号：EP10004803.2

申请日：2010-05-06

申请人： Sony Corporation

发明人： Houchi, Suguru ,  Yoshimochi, Naoki ,  Okamoto, Takuya ,  Goto, Yuken ,  Yokokawa, Takashi

IPC分类号： H04L27/26 ,  H04L5/00

CPC分类号： H04L27/2662 ,  H04L5/0023 ,  H04L5/0048 ,  H04L25/0204 ,  H04L25/0226 ,  H04L25/0232 ,  H04L25/03159 ,  H04L27/2649 ,  H04L27/2675 ,  H04L2025/03414 ,  H04L2025/03426

摘要： A signal receiving apparatus includes: an acquisition section configured to acquire an Orthogonal Frequency Division Multiplexing signal resulting from combination of a plurality of signals transmitted by a plurality of signal transmitting apparatus by adoption of an Orthogonal Frequency Division Multiplexing method; and a demodulation section configured to carry out partial processing of processing to demodulate the Orthogonal Frequency Division Multiplexing signal acquired by the acquisition section by making use of either first pilot signals or second pilot signals where the first pilot signals are pilot signals extracted from the Orthogonal Frequency Division Multiplexing signal acquired by the acquisition section as signals having the same phase for all the signal transmitting apparatus, and the second pilot signals are pilot signals extracted from the Orthogonal Frequency Division Multiplexing signal acquired by the acquisition section as signals having different phases depending on the signal transmitting apparatus.

摘要翻译： 一种信号接收装置，包括：被配置为获取关于正交频分复用信号从由通过采用正交频分复用方法的信号发送装置的一个多元mitted反式信号的多个的组合而产生的获取部; 以及解调部分，配置为执行处理的部分处理以解调通过利用任一第一导频信号或所述第一导频信号是从所述的正交频提取的导频信号的第二导频信号由所述获取部分获取的正交频分复用信号 由获取部分为具有用于所有所述信号发送设备具有相同相位的信号获取的分复用信号，并且所述第二导频信号是从由获取部分为具有取决于不同相位的信号中获取的正交频分复用信号提取的导频信号 传输信令装置。

公开(公告)号：EP2257011A1

公开(公告)日：2010-12-01

申请号：EP09007209.1

申请日：2009-05-29

申请人： Universität Duisburg-Essen

发明人： Viessmann, Alexander ,  Burnic, Admir ,  Scheiber, Ernest ,  Bai, Zijian ,  Bruck, Guido Dr. ,  Jung, Peter, Prof. Dr. habil.

IPC分类号： H04L27/26 ,  H04L25/02 ,  H04L25/03

CPC分类号： H04L27/2647 ,  H04L25/0246 ,  H04L25/03159 ,  H04L25/03171 ,  H04L25/03178 ,  H04L25/03292

摘要： The circuit (100) for providing a soft output based on a baseband representation of a multicarrier signal, the multicarrier signal having at least two subcarriers, the baseband representation having a frequency error (Δ f ), the frequency error (Δ f ) introducing a coupling between the at least two subcarriers. The circuit (100) comprises a channel estimator (110) for estimating a radio channel based on the baseband representation, the estimated radio channel comprises an estimate on the coupling between the two subcarriers in the baseband. The circuit (100) further comprises an equalizer (120) for providing the soft output based on the estimated radio channel and the baseband representation.

摘要翻译： 用于基于多载波信号的基带表示提供软输出的电路（100），所述多载波信号具有至少两个子载波，所述基带表示具有频率误差（f），所述频率误差（“f”）引入 在所述至少两个子载波之间耦合。 电路（100）包括用于基于基带表示来估计无线电信道的信道估计器（110），所估计的无线电信道包括对基带中的两个子载波之间的耦合的估计。 电路（100）还包括用于基于估计的无线电信道和基带表示来提供软输出的均衡器（120）。

公开(公告)号：EP2236003A1

公开(公告)日：2010-10-06

申请号：EP09804504.0

申请日：2009-08-06

申请人： Huawei Technologies Co., Ltd.

发明人： MAHDI, Kaniz ,  ZHANG, Hengling ,  CHENG, Hua ,  ZHANG, Zhaohui ,  YANG, Lili

IPC分类号： H04W88/18

CPC分类号： H03M1/0624 ,  H03M1/0604 ,  H03M1/0607 ,  H03M1/0836 ,  H03M1/1215 ,  H04B10/697 ,  H04L25/03057 ,  H04L25/03159 ,  H04L63/10 ,  H04L65/1016 ,  H04L65/1069 ,  H04L65/1083 ,  H04L65/1089 ,  H04L65/1093 ,  H04L67/14 ,  H04L67/148 ,  H04L2025/03445

摘要： A system and method is provided for remote session control of IP Multimedia Subsystem (IMS) sessions. A remote media flow may be established as part of an origination process wherein the controller UE requests that the media flow is established on a remote media UE as part of the origination request. A remote media flow may also be established as part of a termination process wherein the controller UE identified in the termination request identifies a remote media UE on which a remote media is to be established. Embodiments also allow for the session control to be transferred from a first device to a second device, while maintaining one or more media flows on the first device.