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    • 1. 发明授权
    • Method and apparatus for packet wireless telecommunications
    • 分组无线电信的方法和装置
    • US08259695B2
    • 2012-09-04
    • 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。
    • 7. 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。
    • 10. 发明授权
    • Method for estimating the downlink capacity in a spread spectrum wireless communications system
    • 用于估计扩频无线通信系统中的下行链路容量的方法
    • US07400887B2
    • 2008-07-15
    • US11121432
    • 2005-05-04
    • Utku AzmanMonica Casado-FernandezMark E NewburyHong YangHai Zhou
    • Utku AzmanMonica Casado-FernandezMark E NewburyHong YangHai Zhou
    • H04Q7/20
    • H04W24/00H04W24/08
    • The per sector or per cell downlink capacity in a spread spectrum wireless network is determined using a single test mobile that is operating within a background of simulated co-channel interference being broadcast in each sector by all cell sites in the network whose capacity is of interest. From all sectors, an Orthogonal Channel Noise Simulator (OCNS) generates a multiple number of calibrated test signals, which are aggregated and broadcast downlink, where each transmitted test signal simulates the downlink power transmitted to a live mobile. Each component test signal in the aggregated OCNS output transmitted in each sector is a sample of a stochastic process with a set mean and standard deviation that are determined from the mean and standard deviation of the power of a real signal transmitted downlink to the test mobile as it is moved around the network's coverage area. The capacity of the sector is determined by increasing the number of test signals in each aggregated OCNS output until measurable performance is compromised.
    • 在扩频无线网络中的每扇区或每小区下行链路容量是使用在其容量感兴趣的网络中的所有小区站点在每个扇区中广播的模拟同信道干扰背景下运行的单个测试移动站来确定的 。 从所有扇区,正交信道噪声模拟器(OCNS)产生多个校准测试信号,这些测试信号被聚合和广播下行链路,其中每个发送的测试信号模拟传输到实时移动站的下行链路功率。 在每个扇区中发送的聚合OCNS输出中的每个分量测试信号是具有设定平均值和标准偏差的随机过程的样本,其由从发送到测试移动台的下行链路的实际信号的功率的平均值和标准偏差确定 它被移动到网络的覆盖区域。 通过增加每个聚合OCNS输出中的测试信号的数量来确定扇区的容量,直到可衡量的性能受到损害。