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    • 5. 发明公开
    • DATA TRANSMISSION FROM TRANSMITTER TO RECEIVER IN RADIO SYSTEM
    • DATENÜBERTRAGUNGVONN SENDER ZUEMPFÄNGER在FUNKSYSTEM
    • EP1243086A1
    • 2002-09-25
    • EP00987553.5
    • 2000-12-21
    • Nokia Corporation
    • YLITALO, JuhaHORNEMAN, KariKATZ, MarcosJUNTTI, Markku
    • H04B7/06
    • H04L1/0048H04B7/0613
    • The invention relates to a radio system comprising a transmitter (250) and a receiver (260) connected (224) to a transmitter (226). The transmitter (250) comprises a channel encoder (206) for channel-coding data (200), and at least two transmitter antennas (214A, 214B) for transmitting the channel-coded data. The receiver (260) comprises a receiver (300A, 300B) per each transmitter antenna (214A, 214B) for detecting the signal (224A, 224B) transmitted via the transmitter antenna (214A, 214B) in question. The transmitter (250) further comprises means (206, 240) for dividing the channel-coded non-interleaved data into signals (224A, 224B) with different contents, to be transmitted via at least two different transmitter antennas (214A, 214B); and means (238) for providing the signal (224A, 224B) to be transmitted via each transmitter antenna (214A, 214B) with an identifier, by means of which identifier the signals (224A, 224B) transmitted via different transmitter antennas (214A, 214B) are distinguishable from each other in the receiver (260). And the receiver (260) comprises: means (320) for combining the received signals (224A, 224B) transmitted via different transmitter antennas (214A, 214B) into received channel-coded non-interleaved data; a channel decoder (322) for decoding the channel-coding of the received channel-coded non-interleaved data; interference attenuation means for attenuating interference by utilizing the decoded data. One example of the receiver (260) is a Rake receiver, which comprises a predetermined number of interference cancellation stages (360, 362), which interference cancellation stage comprises receivers (300A, 300B) means (320) for combining the signals, channel decoders (324), channel encoders (340), estimating means (342), and interference cancellation means (344).
    • 本发明涉及一种从无线电系统中的发射机向接收机发送数据的方法和无线电系统。 该方法包括:使用选择的信道编码对数据进行信道编码; 将信道编码的非交织数据划分为具有不同内容的信号,以经由至少两个不同的发射机天线发射; 提供通过每个发射机天线发送的具有标识符的信号,通过该标识符,经由不同发射机天线发送的信号在接收机中彼此可区分; 使用不同的发射机天线将信号发送到接收机; 通过接收机接收每个发射机天线的接收机检测经由每个发射机天线发送的信号,并将检测到的信号组合成接收的信道编码非交织数据; 解码所接收的信道编码的非交错数据的信道编码; 并且接收机利用解码数据衰减干扰。
    • 8. 发明公开
    • SPREADING FACTOR DETERMINATION
    • 扩展因子确定
    • EP1243081A2
    • 2002-09-25
    • EP00991143.9
    • 2000-12-01
    • Nokia Corporation
    • JUNTTI, MarkkuPAJUKOSKI, Kari
    • H04B1/707H04L25/02H04L1/08
    • H04B1/707H04J13/0044
    • The present invention relates to a method and circuitry for determining a spreading factor in a communication system with variab le data rates. In such a system the received signal n such system may include a plurality of data symbols that are spread in the transmission signal in a manner that is defined by a spreading code and a spreading factor, the spreading factor being one of a plurality of possible spreading factors. In accordance with the method, the received signal is processed so as to produce signal outputs which are cleared from the effects of the spreading code, autocorrelation values are computed for the signal outputs, and the spreading factor is determined based on the computed autocorrela tion values.
    • 本发明涉及用于在具有可变数据速率的通信系统中确定扩频因子的方法和电路。 在这样的系统中,这样的系统中的接收信号可以包括多个数据符号,该多个数据符号以由扩展码和扩频因子定义的方式在传输信号中扩频,扩频因子是多个可能的扩频 因素。 根据该方法,处理接收信号以产生从扩频码的影响中清除的信号输出,为信号输出计算自相关值,并且基于计算的自相关值确定扩频因子 。