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    • 10. 发明申请
    • Method and apparatus for packet wireless telecommunications
    • 分组无线电信的方法和装置
    • US20080267157A1
    • 2008-10-30
    • US11796853
    • 2007-04-30
    • Jung Ah LeeSaid TateshHai Zhou
    • Jung Ah LeeSaid TateshHai Zhou
    • H04B7/216
    • H04L27/2602H04L1/0006H04L1/1812H04L27/2626H04L27/2647
    • In a wireless telecommunications network, a Code Division Multiple Access (CDMA) scheme is applied to data to encode it. The encoded data transmitted in the uplink using an Orthogonal Frequency Division Multiplexing (OFDM) frame structure including a cyclic prefix (CP). The CDMA encoded data may be time multiplexed with Single Carrier-Frequency Division Multiple Access (SC-FDMA) transmissions. The CDMA transmissions may be used for relatively small payloads, such as those associated with voice traffic and control signals, and the SC-FDMA transmissions used for higher date rate transmissions. This enables autonomous transmission, without scheduling, for smaller payloads. A transmitter includes a selector 3 for performing time multiplexing in the uplink, the required mode being indicated by the Hybrid Automatic Repeat Request (HARQ) ID. A first branch 1 carries SC-FDMA data and a second branch 2 carries data to be transmitted as a CDMA scheme. A CAZAC code may be used in encoding the CDMA data.
    • 在无线电信网络中,将码分多址(CDMA)方案应用于数据进行编码。 使用包括循环前缀(CP)的正交频分复用(OFDM)帧结构在上行链路中发送的编码数据。 CDMA编码数据可以与单载波频分多址(SC-FDMA)传输进行时间复用。 CDMA传输可以用于相对小的有效载荷,例如与语音业务和控制信号相关联的那些,以及用于较高日期传输的SC-FDMA传输。 这使得能够进行自主传输,而无需调度,可以实现更小的有效载荷。 发射机包括用于在上行链路中执行时间复用的选择器3,所需模式由混合自动重传请求(HARQ)ID指示。 第一分支1携带SC-FDMA数据,第二分支2携带要作为CDMA方案发送的数据。 可以在编码CDMA数据时使用CAZAC码。