Method and apparatus for transmitting/receiving data in an orthogonal frequency division multiple access system
    1.
    发明授权
    Method and apparatus for transmitting/receiving data in an orthogonal frequency division multiple access system 有权
    用于在正交频分多址系统中发送/接收数据的方法和装置

    公开(公告)号:US08331472B2

    公开(公告)日:2012-12-11

    申请号:US11942281

    申请日:2007-11-19

    IPC分类号: H04B7/02

    摘要: A method for transmitting data in an Orthogonal Frequency Division Multiple Access (OFDMA) system. The data transmission method includes determining a number of diversity tiles, each of which includes physically separated frequency resources; dividing an entire system band into diversity subbands including the diversity tiles and localized subbands including localized tiles, each of which includes physically adjacent frequency resources, when the determined number of diversity tiles is greater than a threshold; uniformly distributing the diversity tiles over the entire system band, and disposing the localized tiles in the remaining bands except for the diversity tiles, when the determined number of diversity tiles is not greater than the threshold; and transmitting data to multiple terminals over the configured diversity tiles and localized tiles using diversity transmission and localized transmission schemes.

    摘要翻译: 一种在正交频分多址(OFDMA)系统中发送数据的方法。 数据传输方法包括确定多个分集瓦片,每个分组瓦片包括物理上分离的频率资源; 将整个系统频带划分成分集子带,其包括分集瓦片和局部子带,其中当所确定的分集瓦片数量大于阈值时,包括局部瓦片,每个区域包括物理上相邻的频率资源; 当所确定的分集瓦数不大于阈值时,在整个系统频带上均匀分布分集瓦片,以及将局部瓦片布置在除了分集瓦片之外的剩余波段中; 以及使用分集传输和局部传输方案通过所配置的分集瓦片和局部瓦片将数据发送到多个终端。

    Method and apparatus for CDMA control segment hopping in a mobile communication system
    8.
    发明授权
    Method and apparatus for CDMA control segment hopping in a mobile communication system 有权
    移动通信系统中CDMA控制段跳频的方法和装置

    公开(公告)号:US08121044B2

    公开(公告)日:2012-02-21

    申请号:US11924361

    申请日:2007-10-25

    IPC分类号: H04B7/216 H04J1/00

    摘要: A method and apparatus for hopping of a Code Division Multiple Access (CDMA) control segment that carries control information in an Orthogonal Frequency Division Multiple Access (OFDMA) packet data mobile communication system are provided, in which a number of CDMA control segment hopping zones, each CDMA control segment hopping zone representing a frequency area for CDMA control segment hopping, is determined according to a total number of available tiles in the system and a number of tiles per CDMA control segment, each tile including a predetermined number of subcarriers, or according to a total number of available subcarriers in the system and a number of subcarriers per CDMA control segment. Start points of the hopping zones are determined using the number of the hopping zones, and the control information is transmitted or received in the CDMA control segment through hopping of the CDMA control segment over the hopping zones using the start points.

    摘要翻译: 提供一种在正交频分多址(OFDMA)分组数据移动通信系统中携带控制信息的码分多址(CDMA)控制段跳频的方法和装置,其中多个CDMA控制段跳频区, 表示用于CDMA控制段跳频的频率区域的每个CDMA控制段跳频区域根据系统中的可用瓦片的总数和每个CDMA控制段的瓦片数量确定,每个瓦片包括预定数量的子载波,或根据 到系统中的可用副载波的总数和每个CDMA控制段的多个副载波。 使用跳频区的数量来确定跳频区的起始点,并且通过使用起始点在跳频区上跳过CDMA控制段来在CDMA控制段中发送或接收控制信息。

    Apparatus and method for transmitting/receiving feedback information in a mobile communication system using array antennas
    10.
    发明申请
    Apparatus and method for transmitting/receiving feedback information in a mobile communication system using array antennas 审中-公开
    使用阵列天线在移动通信系统中发送/接收反馈信息的装置和方法

    公开(公告)号:US20080153428A1

    公开(公告)日:2008-06-26

    申请号:US11999511

    申请日:2007-12-04

    IPC分类号: H04B1/00 H04B7/00

    摘要: Provided is a method for transmitting feedback information by a receiver in a mobile communication system that performs multiplexing transmission using array antennas. The method includes determining a weight set for maximizing a data rate among at least one weight set having, as its elements, multiple orthonormal weight vectors, based on a fading channel estimated from a pilot channel of received data; estimating channel state information corresponding to a weight vector of the determined weight set; and generating and transmitting feedback information including an index of the determined weight set, the selected weight vector information, and the channel state information corresponding to the weight vector.

    摘要翻译: 提供一种在使用阵列天线执行复用传输的移动通信系统中由接收机发送反馈信息的方法。 该方法包括:根据从接收数据的导频信道估计的衰落信道,确定至少一个权重集合中的数据速率最大化的权重集合,该权重集合具有多个正交权重向量作为其元素; 估计与所确定的权重集的权重向量相对应的信道状态信息; 以及生成和发送反馈信息,所述反馈信息包括所确定的权重集合的索引,所选择的权重向量信息和对应于权重向量的信道状态信息。