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    • 3. 发明申请
    • METHOD AND ARRANGEMENT IN A WIRELESS COMMUNICATION NETWORK
    • 无线通信网络中的方法和布置
    • WO2011085522A1
    • 2011-07-21
    • PCT/CN2010/000074
    • 2010-01-18
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)GAN, JiansongHOYMAN, ChristianLIU, YinWANG, HaiWANG, Jianfeng
    • GAN, JiansongHOYMAN, ChristianLIU, YinWANG, HaiWANG, Jianfeng
    • H04W16/00
    • H04L5/0053H04B7/155H04L5/14H04W56/003H04W72/00H04W84/047
    • Method and arrangement in a base station for sending control signals to a relay node. The relay node is configured to relay a data transmission from the base station to a user equipment in a subframe. The subframe comprises a first part, dedicated for downlink transmission, a second part dedicated for uplink transmission and a separating part situated between the first part and the second part. The base station, the relay node and the user equipment are comprised in a wireless communication network configured to operate according to the Time Division Duplex TDD principle. The method comprising transmitting data to the user equipment via the relay node in the first part of the subframe and transmitting the control signals, related to the transmitted data, to the relay node in the separating part between the first part and the second part of the subframe. Further, a method and an arrangement in a relay node for receiving control signals from the base station are described.
    • 用于向中继节点发送控制信号的基站中的方法和装置。 中继节点被配置为在子帧中中继从基站到用户设备的数据传输。 子帧包括专用于下行链路传输的第一部分,专用于上行链路传输的第二部分和位于第一部分和第二部分之间的分离部分。 基站,中继节点和用户设备包括在被配置为根据时分双工TDD原理进行操作的无线通信网络中。 该方法包括经由子帧的第一部分中的中继节点向用户设备发送数据,并将与发送的数据相关的控制信号发送到分离部分中的中继节点,该分离部分在第一部分和第二部分之间 子。 此外,描述了用于从基站接收控制信号的中继节点中的方法和装置。
    • 8. 发明申请
    • A METHOD AND ARRANGEMENT FOR TRAINING SEQUENCE ALLOCATION
    • 训练序列分配的方法和方案
    • WO2012100377A1
    • 2012-08-02
    • PCT/CN2011/000151
    • 2011-01-30
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)WANG, HaiZHU, Huaisong
    • WANG, HaiZHU, Huaisong
    • H04L27/26
    • H04L5/0048
    • The invention discloses a method for training sequence allocation and a Radio Network Controller (RNC), Node B and User Equipment (UE) for implementing the method. The method in the RNC of a multiple-carrier Time Division- Synchronous Code Division Multiple Access (TD-SCDMA) network comprises configuring a message including information on at least one carrier-specific training sequence shifts, wherein the shifts are different among the multiple carriers. A method for training sequence allocation in a RNC of a Time Division- Synchronous Code Division Multiple Access (TD-SCDMA) network with with a number N of carriers K1 i = 1,...,N comprises allocating a different training sequence shift S, for each carrier K1, i = 1,...,N.
    • 本发明公开了一种用于训练序列分配的方法和用于实现该方法的无线网络控制器(RNC),节点B和用户设备(UE)。 多载波时分同步码分多址(TD-SCDMA)网络的RNC中的方法包括配置包括关于至少一个载波特定训练序列移位的信息的消息,其中,所述多载波 。 用于训练具有N个载波K1 i = 1,...,N的时分同步码分多址(TD-SCDMA)网络的RNC中的序列分配的方法包括:分配不同的训练序列位移S ,对于每个载波K1,i = 1,...,N。
    • 9. 发明申请
    • COVARIANCE ESTIMATION METHOD FOR SPACE-FREQUENCY DOMAIN EQUALIZATION AND APPARATUS AND SYSTEM ASSOCIATED THEREWITH
    • 用于空间频域均衡的协方差估计方法及其相关系统
    • WO2012075604A1
    • 2012-06-14
    • PCT/CN2010/001989
    • 2010-12-08
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)GUO, ZhihengWANG, HaiZHANG, Ruiqi
    • GUO, ZhihengWANG, HaiZHANG, Ruiqi
    • H04B1/707
    • H04L25/03891H04B7/0848H04L25/0228H04L25/03968
    • The present invention relates to a method for generating impairment covariances for equalization in a receiver of a wireless communication system, as well as an covariance estimator, a receiver and a wireless communication system associated therewith, where the receiver is equipped with multiple antennas, and an impairment covariance matrix is used to calculate equalization weighting vector for signals transmitted by a transmitter, the method comprising the steps of : calculating a raw impairment covariance estimate between a first antenna and a second antenna of the multiple antennas on each of subcarriers allocated to the transmitter in frequency domain, transforming the raw impairment covariance estimates into time domain, masking the transformed impairment covariance estimates by a triangle window with a width defined by a maximum delay spread, determining a threshold based on the transformed impairment covariance estimates for the subcarriers and thresholding the masked impairment covariance estimates with the determined threshold, and transforming the thresholded impairment covariance estimates into frequency domain to form an impairment covariance matrix for calculating the equalization weighting vector. The impairment covariance estimation according to the present invention provides a performance improvement in equalization.
    • 本发明涉及一种用于在无线通信系统的接收机中产生用于均衡的损害协方差的方法,以及与其相关联的协方差估计器,接收机和无线通信系统,其中接收机配备有多个天线,并且 减法协方差矩阵用于计算由发射机发射的信号的均衡加权矢量,该方法包括以下步骤:在分配给发射机的每个子载波上计算多个天线的第一天线与第二天线之间的原始损伤协方差估计 在频域中将原始损害协方差估计转换为时域,通过具有由最大延迟扩展定义的宽度的三角形窗口来掩蔽变换的损害协方差估计,基于子载波的变换的损害协方差估计确定阈值, 掩蔽损伤 确定阈值的协方差估计,并将阈值的损害协方差估计变换为频域以形成用于计算均衡加权向量的损害协方差矩阵。 根据本发明的损伤协方差估计提供了均衡的性能改进。
    • 10. 发明申请
    • METHOD AND APPARATUS FOR ENHANCING CHANNEL ESTIMATION
    • 用于增强信道估计的方法和装置
    • WO2011100858A1
    • 2011-08-25
    • PCT/CN2010/000215
    • 2010-02-17
    • TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)GUO, ZhihengWANG, HaiZHANG, Ruiqi
    • GUO, ZhihengWANG, HaiZHANG, Ruiqi
    • H04L27/26
    • H04L25/024H04L25/0218H04L25/022H04L27/2647
    • A noisy frequency-domain channel estimate (H in ) enhancer (24) includes an over-sampler (30) configured to transform the noisy frequency-domain channel estimate (H in ) into a time-domain channel estimate (h) that is virtually over-sampled by an integer factor m . The over-sampler (30) is connected to a de-interleaver (32) configured to divide the time-domain channel estimate (h) into m de-interleaved sub-vectors (h i ). The de-interleaver (32) is connected to a suppressor (34) configured to suppress noisy taps from each de-interleaved sub-vectors (h i ) to form m noise suppressed sub-vectors (h' i ). The suppressor (34) is connected to a selector (36) configured to select a noise suppressed sub-vector (h' i0 ) associated with a highest signal-to-noise ratio ( γ i ). The selector (36) is connected to a discrete Fourier transformer (38) configured to transform the selected noise suppressed sub-vector (h' i0 ) into a noise suppressed preliminary frequency-domain channel estimate ( H'). The discrete Fourier transformer (38) is connected to a phase-shifter (40) configured to phase- adjust the taps of the noise suppressed preliminary frequency-domain channel estimate (H') to form an enhanced frequency-domain channel estimate (H out ).
    • 噪声频域信道估计(H in)增强器(24)包括过采样器(30),其被配置为将有噪声的频域信道估计(H in)变换为虚拟的时域信道估计(h) 过采样整数因子m。 过采样器(30)连接到解交织器(32),其被配置为将时域信道估计(h)划分为m个去交织的子向量(h i)。 解交织器(32)连接到抑制器(34),抑制器(34)被配置为抑制来自每个解交织的子向量(h i)的噪声抽头以形成m个噪声抑制子向量(h'i)。 抑制器(34)连接到选择器(36),其被配置为选择与最高信噪比(Δi)相关联的噪声抑制子矢量(h'i0)。 选择器(36)连接到被配置为将所选择的噪声抑制子矢量(h'i0)变换为噪声抑制的初步频域信道估计(H')的离散付里叶变换器(38)。 离散傅立叶变换器(38)连接到移相器(40),该移相器(40)被配置为对噪声抑制的初步频域信道估计(H')的抽头进行相位调整,以形成增强的频域信道估计(H out )。