Communication terminal equipment

• Main Author: SUTO HIROAKI
• Format: Patent
• Language: Chinese; English
• Published: 28.07.2004
• Edition: 7
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; MULTIPLEX COMMUNICATION; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

扩展部件(101和102)分别扩展每个传输信号和已知信号。S/P转换器(104)分解信号，在该信号上对每个码片将扩展传输信号和已知信号多路复用。IFFT部件(105)频分复用码片数据串。FFT部件(107)对接收信号执行傅里叶变换并提取每个副载波信号。P/S转换器(109)将多个并行信号转换为单个串行信号。解扩部件(110和111)分别利用预定扩展码和已知信号扩展码解扩转换成串行信号的接收信号。残余相位误差检测部件(113)利用已知信号和接收已知信号检测残余相位误差。相位补偿部件(112)补偿每个接收信号。 Spreading section 101 spreads each transmission signal using a spreading code specific to the signal. Spreading section 102 spreads a known signal using a spreading code specific to the signal. S/P converter 104 breaks down a signal on which the spread transmission signals and the known signal are multiplexed for every chip and IFFT section 105 subjects the chip data string to frequency division multiplexing. FFT section 107 carries out Fourier transform processing on the reception signal and extracts each subcarrier signal. P/S converter 109 converts a plurality of parallel signals subjected to compensation processing to a single serial signal. Despreading section 110 despreads the reception signal converted to a serial signal using a predetermined spreading code. Despreading section 111 despreads the reception signal converted to a serial signal using a known signal spreading code. Residual phase error detection section 113 detects a residual phase error using the known signal and received known signal subjected to despreading processing. Phase compensation section 112 compensates each reception signal based on the residual phase error.