Apparatus for Band Limiting in Sc-Fdma Communications Systems and Method Thereof
    61.
    发明申请
    Apparatus for Band Limiting in Sc-Fdma Communications Systems and Method Thereof 审中-公开
    Sc-Fdma通信系统中频带限制的装置及方法

    公开(公告)号:US20090010150A1

    公开(公告)日:2009-01-08

    申请号:US11913536

    申请日:2006-05-02

    IPC分类号: H04J11/00 H04J1/00

    摘要: A method for band limiting in a Single Carrier Frequency Division Multiple Access (SC-FDMA) communications system comprises generating a SC-FDMA data symbol block and band-limiting the SC-FDMA data symbol block using a window (309). A transmitter in a SC-FDMA communications system comprises a SC-FDMA data symbol block generator which generates a SC-FDMA data symbol block and a window (309) for band limiting the SC-FDMA data symbol block. Using a window (309) for band limiting has an advantage to decrease the number of calculations because only multiplication's between the transmitted signal and the window (309) are required.

    摘要翻译: 一种用于单载波频分多址(SC-FDMA)通信系统中的频带限制的方法包括:使用窗口(309)生成SC-FDMA数据符号块并对SC-FDMA数据符号块进行频带限制。 SC-FDMA通信系统中的发射机包括产生SC-FDMA数据符号块的SC-FDMA数据符号块发生器和用于频带限制SC-FDMA数据符号块的窗口(309)。 使用用于频带限制的窗口(309)具有减少计算次数的优点,因为仅需要在发射信号和窗口(309)之间的乘法。

    Method and apparatus for allocating channelization codes for wireless communications
    62.
    发明授权
    Method and apparatus for allocating channelization codes for wireless communications 失效
    用于分配用于无线通信的信道化码的方法和装置

    公开(公告)号:US07372912B2

    公开(公告)日:2008-05-13

    申请号:US10845530

    申请日:2004-05-14

    IPC分类号: H04B7/02

    摘要: A data transmission method for a MIMO (Multiple-input Multiple-Output) system allowing multiple terminals to share channelization codes according to the channel states, by receiving channel information from terminals, allocating channelization codes for each transmit antenna based upon the received channel information, and transmitting data via each transmit antenna according to the allocated channelization codes. When there are many user terminals and if the number of channelization codes are limited, namely, when the total number of channel codes used to distinguish the terminals is less than the total number of terminals, channelization code sharing per transmit antenna among multiple terminals is performed, such that the throughput of data that can be sent by using each channelization code is increased.

    摘要翻译: 一种MIMO(多输入多输出)系统的数据传输方法,其允许多个终端根据信道状态共享信道化码,通过从终端接收信道信息,基于接收的信道信息为每个发射天线分配信道化码, 并根据所分配的信道化码通过每个发送天线发送数据。 当存在许多用户终端,并且如果信道化码数量受到限制,即当用于区分终端的信道码的总数小于终端总数时,则执行多个终端之间每发射天线的信道化码共享 ,使得可以通过使用每个信道化码发送的数据的吞吐量增加。

    Frame structure of uplink control information transmission channel in MIMO communication system
    64.
    发明申请
    Frame structure of uplink control information transmission channel in MIMO communication system 失效
    MIMO通信系统中上行控制信息传输通道的帧结构

    公开(公告)号:US20050219999A1

    公开(公告)日:2005-10-06

    申请号:US11097013

    申请日:2005-03-31

    摘要: A frame structure of an uplink control information transport channel in the MIMO communication system using multiple transmission antennas and multiple reception antennas, constructed such that an uplink control information transport channel for transmitting control information with respect to each of the multiple transmission antennas includes three fields: a field for acknowledgement (ACK)/negative acknowledgement (NACK) for HARQ (Hybrid Automatic Retransmission Request), a field for CQI (Channel Quality Information) and a field for weight value information with respect to each transmission antenna. Because the control information for controlling each transmission antenna is effectively transmitted, signals transmitted at each transmission antenna of the MIMO system can be controlled in real time.

    摘要翻译: 在使用多个发送天线和多个接收天线的MIMO通信系统中的上行链路控制信息传送信道的帧结构,其结构使得用于发送关于多个发送天线中的每一个的控制信息的上行控制信息传送信道包括三个字段: 用于HARQ(混合自动重发请求)的确认(ACK)/否定确认(NACK)的字段,用于CQI(信道质量信息)的字段和关于每个发送天线的权重值信息的字段。 由于用于控制每个发送天线的控制信息被有效地发送,所以可以实时地控制在MIMO系统的每个发送天线处发送的信号。