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    • 4. 发明申请
    • METHODS OF REVERSE LINK POWER CONTROL
    • 反向链路功率控制方法
    • WO2007097960A1
    • 2007-08-30
    • PCT/US2007/003900
    • 2007-02-13
    • LUCENT TECHNOLOGIES INC.DAS, SumanNAGARAJ, ShirishVISWANATHAN, Harish
    • DAS, SumanNAGARAJ, ShirishVISWANATHAN, Harish
    • H04B7/005
    • H04W52/243H04W52/146H04W52/241H04W52/247
    • Methods of reverse link power control are provided. In a first example reverse link power control process, a signal-to-interference+noise (SINR) is measured for a plurality of mobile stations (S605). A power control adjustment is determined for each of the mobile stations based on the measured SINR for the mobile station and a fixed target SINR, the fixed target SINR being used in the determining step for each mobile station and sending the power control adjustments to the mobile stations (S610). In a second example reverse link power control process, one or more signals are transmitted to a base station (S405). A power control adjustment indicator indicating an adjustment to a transmission power level is received (S415). The received power control adjustment is determined based on a measured signal-to-interference+noise ratio (SINR) for the one or more transmitted signals and a fixed target SINR threshold, the fixed target SINR threshold being used for power control adjustment of a plurality of mobile stations (S410).
    • 提供反向链路功率控制的方法。 在第一示例性反向链路功率控制处理中,针对多个移动台测量信号与干扰+噪声(SINR)(S605)。 基于移动站的测量SINR和固定目标SINR确定每个移动站的功率控制调整,在每个移动台的确定步骤中使用固定目标SINR,并将功率控制调整发送到移动台 车站(S610)。 在第二示例性的反向链路功率控制处理中,向基站发送一个或多个信号(S405)。 接收指示发送功率电平的调整的功率控制调整指示(S415)。 所接收的功率控制调整基于用于一个或多个发送信号的测量信号与干扰+噪声比(SINR)和固定目标SINR阈值来确定,固定目标SINR阈值用于多个功率控制调整 的移动台(S410)。
    • 7. 发明申请
    • WIRELESS COMMUNICATIONS SYSTEM EMPLOYING OFDMA AND CDMA TECHNIQUES
    • 无线通信系统采用OFDMA和CDMA技术
    • WO2007084366A1
    • 2007-07-26
    • PCT/US2007/000828
    • 2007-01-12
    • LUCENT TECHNOLOGIES INC.MONOGIOUDIS, PantelisNAGARAJ, ShirishVISWANATHAN, Harish
    • MONOGIOUDIS, PantelisNAGARAJ, ShirishVISWANATHAN, Harish
    • H04B1/707H04L27/26
    • H04L27/2615H04L5/0007H04L5/0016H04L5/0048H04L27/2607
    • Disclosed is an Orthogonal Frequency Division Multiple Access (OFDMA) based wireless communications system operable to communicate OFDMA type signals over a set of dynamically assigned orthogonal sub-carriers and Code Division Multiple Access (CDMA) type signals over a set of pre-allocated orthogonal sub-carriers. The OFDMA system utilizes pre-allocated orthogonal sub-carriers for CDMA type signal transmission in order to reduce the number of dynamic assignments of orthogonal sub-carriers in a typical OFDMA system. The OFDMA type signals may be signals processed in accordance with well-known OFDMA techniques, whereas the CDMA type signals may be signals processed in accordance with well-known CDMA and OFDMA techniques. The CDMA type signals may also be processed using a pre- coder incorporating a Discrete Fourier Transformer (DFT) matrix or Identity matrix to reduce the Peak-to-Average Power Ratio across the OFDMA system.
    • 公开了一种基于正交频分多址接入(OFDMA)的无线通信系统,其可操作以通过一组预先分配的正交子信道在一组动态分配的正交子载波和码分多址(CDMA)类型信号上传送OFDMA类型信号 -carriers。 OFDMA系统利用用于CDMA类型信号传输的预分配的正交子载波,以便减少典型OFDMA系统中的正交子载波的动态分配的数量。 OFDMA型信号可以是根据公知的OFDMA技术处理的信号,而CDMA型信号可以是根据公知的CDMA和OFDMA技术处理的信号。 也可以使用包含离散傅里叶变换器(DFT)矩阵或标识矩阵的预编码器来处理CDMA型信号,以减少OFDMA系统上的峰均功率比。