Delivery of multicast and uni-cast services in an OFDMA system
    1.
    发明授权
    Delivery of multicast and uni-cast services in an OFDMA system 有权
    在OFDMA系统中传送组播和单播业务

    公开(公告)号:US08179829B2

    公开(公告)日:2012-05-15

    申请号:US12162428

    申请日:2007-02-08

    IPC分类号: H04H20/71 H04W4/00 H04K1/10

    摘要: A method of operating a radio telecommunications network including, a plurality of base transceiver stations (BTSs) each transmitting on a respective transmission bandwidth, and one or more mobile terminals (MTs) each having a respective maximum reception bandwidth, defining a common multicast frequency band within the transmission bandwidth of at least a first group of BTSs of the network on which the multicast service is to be transmitted; transmitting a multicast service in the common multicast frequency band from each BTS within the first group of BTSs; and enabling each base station having a bandwidth greater than the width of the common multicast frequency band to transmit a uni-cast service in portion of its transmission bandwidth falling outside the multicast frequency band.

    摘要翻译: 一种操作无线电通信网络的方法,包括:在各个传输带宽上发送的多个基站收发台(BTS)和每个具有相应的最大接收带宽的一个或多个移动终端(MT),定义公共多播频带 在要发送多播服务的网络的至少第一组BTS的传输带宽内; 在所述第一组BTS内的每个BTS发送在所述公共多播频带中的多播服务; 并且使得具有大于公共多播频带的宽度的带宽的每个基站在其在多播频带外的传输带宽的一部分中传输单播业务。

    Method of transmitting control information
    3.
    发明授权
    Method of transmitting control information 有权
    发送控制信息的方法

    公开(公告)号:US08774154B2

    公开(公告)日:2014-07-08

    申请号:US12598466

    申请日:2008-04-30

    申请人: Thanh Bui

    发明人: Thanh Bui

    IPC分类号: H04B7/208 H04W4/00 H04W28/04

    CPC分类号: H04W28/04 H04W28/06 H04W48/12

    摘要: In a method of transmitting a logical channel by using a downlink transport channel, a plurality of transmission configurations are limited into a limited set of the transmission configurations. Control information relating to the limited set of the transmission configurations of the downlink transport channel is transmitted and at least a part of data of the logical channel is transmitted over the downlink transport channel. Thus, an amount of the control information is reduced.

    摘要翻译: 在通过使用下行链路传输信道发送逻辑信道的方法中,多个发送配置被限制为有限的一组传输配置。 发送与下行链路传输信道的发送配置的有限集合有关的控制信息,并且通过下行链路传输信道发送逻辑信道的数据的至少一部分。 因此,减少了控制信息的量。

    Transmission of MBMS in an OFDM communication system
    4.
    发明授权
    Transmission of MBMS in an OFDM communication system 有权
    在OFDM通信系统中传输MBMS

    公开(公告)号:US08750260B2

    公开(公告)日:2014-06-10

    申请号:US13432946

    申请日:2012-03-28

    申请人: Thanh Bui

    发明人: Thanh Bui

    IPC分类号: H04J3/00 H04J1/00

    摘要: The invention provides for a method of identifying a cyclic prefix to UEs in an OFDM communication system. The cyclic prefix has a dynamically variable length. The method includes, within an OFDM cell, transmitting MCCH scheduling information in a system information block in an OFDM broadcast channel, and using the MCCH scheduling information to receive the MCCH, wherein the MCCH contains MTCH scheduling information to indicate to the UE which sub-frame carries MTCH.

    摘要翻译: 本发明提供了一种在OFDM通信系统中向UE识别循环前缀的方法。 循环前缀具有动态可变长度。 该方法包括:在OFDM小区内发送OFDM广播信道中的系统信息块中的MCCH调度信息,并使用MCCH调度信息接收MCCH,其中MCCH包含MTCH调度信息,向UE指示哪个子帧, 帧携带MTCH。

    Transmission of MBMS in an OFDM communication system
    5.
    发明授权
    Transmission of MBMS in an OFDM communication system 有权
    在OFDM通信系统中传输MBMS

    公开(公告)号:US08416749B2

    公开(公告)日:2013-04-09

    申请号:US12522236

    申请日:2007-12-12

    申请人: Thanh Bui

    发明人: Thanh Bui

    IPC分类号: H04J3/00 H04J1/00

    摘要: The invention provides for a method of identifying a cyclic prefix to UEs in an OFDM communication system. The cyclic prefix has a dynamically variable length. The method includes, within an OFDM cell, transmitting MCCH scheduling information in a system information block in an OFDM broadcast channel, and using the MCCH scheduling information to receive the MCCH, wherein the MCCH contains MTCH scheduling information to indicate to the UE which sub-frame carries MTCH.

    摘要翻译: 本发明提供了一种在OFDM通信系统中向UE识别循环前缀的方法。 循环前缀具有动态可变长度。 该方法包括:在OFDM小区内发送OFDM广播信道中的系统信息块中的MCCH调度信息,并使用MCCH调度信息接收MCCH,其中MCCH包含MTCH调度信息,向UE指示哪个子帧, 帧携带MTCH。

    Demodulation method
    6.
    发明授权
    Demodulation method 有权
    解调方法

    公开(公告)号:US08213552B2

    公开(公告)日:2012-07-03

    申请号:US12311030

    申请日:2007-09-19

    申请人: Thanh Bui Jiun Siew

    发明人: Thanh Bui Jiun Siew

    IPC分类号: H04L27/06

    摘要: A method of calculating at least one soft bit corresponding to a data symbol received by a radio receiver is described. In one form the method (300) includes, calculating an average amplitude at least one received data symbol. The method also includes calculating (304) at least one threshold amplitude in respect of the data symbol on the basis of the calculated average amplitude. Next a subset of constellation symbols is determined (310) at least partly on the basis of the at least one threshold, and for which a distance determination will be made. The distance between the position of the data symbol and each of the symbols in the subset of constellation symbols is determined (312) and then a soft bit corresponding to the received symbol is calculated (314) on the basis of said determined distances.

    摘要翻译: 描述了一种计算与由无线电接收机接收的数据符号相对应的至少一个软比特的方法。 在一种形式中,方法(300)包括:计算至少一个接收到的数据符号的平均幅度。 该方法还包括基于所计算的平均幅度来计算(304)相对于数据符号的至少一个阈值幅度。 接下来,至少部分地基于至少一个阈值确定(310)星座符号的子集(310),并且对其进行距离确定。 确定数据符号的位置与星座符号子集中的每个符号之间的距离(312),然后基于所确定的距离计算与接收到的符号相对应的软比特(314)。

    Receiver
    7.
    发明授权
    Receiver 有权
    接收器

    公开(公告)号:US08189654B2

    公开(公告)日:2012-05-29

    申请号:US12294414

    申请日:2007-03-29

    IPC分类号: H03H7/30

    摘要: A receiver in which computation is simplified can be obtained by using a common factor for filter coefficients of FIR filters corresponding to a plurality of transmitting antennas and by using only the middle column of an inverse matrix of a gain matrix when the common factor is computed.

    摘要翻译: 可以通过使用与多个发送天线相对应的FIR滤波器的滤波器系数的公因子,并且当计算公共因子时,仅使用增益矩阵的逆矩阵的中间列,可以获得计算简化的接收机。

    METHOD OF TRANSMITTING CONTROL CHANNEL INFORMATION IN AN OFDM COMMUNICATION SYSTEM DOWNLINK
    8.
    发明申请
    METHOD OF TRANSMITTING CONTROL CHANNEL INFORMATION IN AN OFDM COMMUNICATION SYSTEM DOWNLINK 有权
    在OFDM通信系统下行链路中发送控制信道信息的方法

    公开(公告)号:US20100316160A1

    公开(公告)日:2010-12-16

    申请号:US12525959

    申请日:2008-02-01

    申请人: Thanh Bui

    发明人: Thanh Bui

    IPC分类号: H04L27/00

    摘要: In a method of transmitting control channel symbols in an OFDM communication system downlink in each sub-frame, the OFDM communication system including one or more transmit antennae, for each transmit antenna, each of the OFDM symbols of a control channel which are to be transmitted over the air is mapped to each of the corresponding non-punctured logical resource elements of one virtual control resource block VCRBp,k. For each transmit antenna, the logical resource elements in each virtual control resource block VCRBp,k are mapped to physical resource elements in each of the first L OFDM symbols so that the physical resource elements are uniformly spaced over the entire transmission bandwidth. For each transmit antenna, the physical resource elements are transmitted to user equipment.

    摘要翻译: 在OFDM子系统的每个子帧的OFDM通信系统的下行链路中发送控制信道符号的方法中,对于每个发送天线,OFDM通信系统包括一个或多个发送天线,要发送的控制信道的每个OFDM符号 空中的映射被映射到一个虚拟控制资源块VCRBp,k的相应的非穿孔逻辑资源元素中的每一个。 对于每个发射天线,将每个虚拟控制资源块VCRBp,k中的逻辑资源元素映射到前L个OFDM符号中的每一个中的物理资源元素,使得物理资源元素在整个传输带宽上均匀间隔开。 对于每个发射天线,物理资源元素被发送到用户设备。

    METHODS RELATING TO CHANNEL ESTIMATION
    9.
    发明申请
    METHODS RELATING TO CHANNEL ESTIMATION 有权
    与通道估计相关的方法

    公开(公告)号:US20100136919A1

    公开(公告)日:2010-06-03

    申请号:US12452617

    申请日:2008-07-28

    IPC分类号: H04B17/00 H04L27/28

    CPC分类号: H04L25/0232

    摘要: The present invention relates to methods that can be used in a wireless communication system, and systems adapted to use such methods. In a preferred form the methods are useful in channel estimation in a wireless communication system using orthogonal frequency division multiplexing (OFDM). The system is provided with a control block to optimise channel estimation.

    摘要翻译: 本发明涉及可用于无线通信系统的方法,以及适用于使用这种方法的系统。 在优选形式中,该方法在使用正交频分复用(OFDM)的无线通信系统中的信道估计中是有用的。 该系统具有控制块以优化信道估计。

    METHOD OF TRANSMITTING CONTROL INFORMATION
    10.
    发明申请
    METHOD OF TRANSMITTING CONTROL INFORMATION 有权
    传输控制信息的方法

    公开(公告)号:US20100091713A1

    公开(公告)日:2010-04-15

    申请号:US12598466

    申请日:2008-04-30

    申请人: Thanh Bui

    发明人: Thanh Bui

    IPC分类号: H04W40/00

    CPC分类号: H04W28/04 H04W28/06 H04W48/12

    摘要: In a method of transmitting a logical channel by using a downlink transport channel, a plurality of transmission configurations are limited into a limited set of the transmission configurations. Control information relating to the limited set of the transmission configurations of the downlink transport channel is transmitted and at least a part of data of the logical channel is transmitted over the downlink transport channel. Thus, an amount of the control information is reduced.

    摘要翻译: 在通过使用下行链路传输信道发送逻辑信道的方法中,多个发送配置被限制为有限的一组传输配置。 发送与下行链路传输信道的发送配置的有限集合有关的控制信息,并且通过下行链路传输信道发送逻辑信道的数据的至少一部分。 因此,减少了控制信息的量。