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1. 发明申请

WO2009012630A1 基于频域均衡联合时域多用户干扰删除的接收机及方法审中-公开
公开(公告)号：WO2009012630A1
公开(公告)日：2009-01-29
申请号：PCT/CN2007/003567
申请日：2007-12-12
申请人：中兴通讯股份有限公司 , 许国平 , 辛雨 , 黄云飞 , 魏群 , 张欣 , 杨大成
发明人：许国平 , 辛雨 , 黄云飞 , 魏群 , 张欣 , 杨大成
IPC分类号： H04B15/00 , H04L27/01
CPC分类号： H04L25/03159 , H04B1/7105 , H04B1/7107 , H04B1/71072 , H04L25/03312 , H04L2025/03414
摘要： A receiver and receiving method are used for multi-user interfere eliminating based on frequency domain equalization combined with time domain, the receiver receives the signals, performs frequency domain equalization processing on the received signals, then converts the signals after frequency domain equalization processing back to time domain to despread them, and performs non-linear processing on the signals of time domain using a non-linear function relation, decides the signals at the last iterative stage, otherwise feeds them back to the receiver to perform interfere eliminating iterative processing sequentially, until they achieve thelast iterative stage. The present invention can be compatible with the present CDMA technology, reduce the complexity of multi-path channel compensating, decrease the iterative times of interfere eliminating, and avoid the errors to be spreaded.

2. 发明申请

WO2008067689A1 正交伪随机噪声解扩方法审中-公开
公开(公告)号：WO2008067689A1
公开(公告)日：2008-06-12
申请号：PCT/CN2006/003312
申请日：2006-12-06
申请人：中兴通讯股份有限公司 , 吴交 , 辛雨 , 许国平
发明人：吴交 , 辛雨 , 许国平
IPC分类号： H04B1/707
CPC分类号： H04B1/707 , H04L5/0016 , H04L5/0048 , H04L25/03866
摘要： A method for despreading orthogonal pseudorandom noise includes the following steps: inputting data sequences I' and Q', and inputting pseudorandom noise sequences PNI and PNQ to be despreaded; in every timeslot, respectively continuously extracting 2048 symbols from the pseudorandom noise sequence PNI or the pseudorandom noise sequence PNQ, respectively demulitiplexing said 2048 symbols, and obtaining pseudorandom noise sequences PNI' and PNQ' which both are 1600 symbols; performing orthogonal pseudorandom despreading operation for pseudorandom noise sequences PNI' and PNQ' and data sequences I' andQ' which has been input and are 1600 symbols, and then outputting data sequences I and Q. According to present invention, the sequences that were input to be performed orthogonal pseudorandom noise despreading were processed, therefore the system transmission requirement is satisfied, and the complexity of the transmitting end is reduced.

3. 发明申请

WO2008141498A1 信号调制方法审中-公开
公开(公告)号：WO2008141498A1
公开(公告)日：2008-11-27
申请号：PCT/CN2007/003263
申请日：2007-11-19
申请人：中兴通讯股份有限公司 , 吴交 , 辛雨 , 许国平 , 曹蕾
发明人：吴交 , 辛雨 , 许国平 , 曹蕾
IPC分类号： H04L27/32 , H04J11/00
CPC分类号： H04L27/2615
摘要： A signal modulation method is provided, it includes the following steps: the input signal is channel encoded, and the signal being channel encoded is processed by the following one or several ways: channel scrambling, interleaving, duplicating and puncturing; the signal being processed is divided to I and Q components, wherein the I and Q components compose a signal pair; the signal pair is divided to more than one paths, and the respective path of signal is quadrature phase shift keying spectrum spreading modulated by different spectrum spreading sequence and is orthogonally modulated, the peak-to-average power ratio of the several paths ofsignal being orthogonally modulated are obtained, and the path of signal having the smallest peak-to-average power ratio is selected to be output as the output signal. The signal modulation method can reduce the signal PAPR significantly, be useful to the design of power magnification, and reduce the cost of power magnification.

4. 发明申请

WO2008113216A1 一种信道估计方法审中-公开
公开(公告)号：WO2008113216A1
公开(公告)日：2008-09-25
申请号：PCT/CN2007/000916
申请日：2007-03-21
申请人：中兴通讯股份有限公司 , 许国平 , 辛雨 , 吴交
发明人：许国平 , 辛雨 , 吴交
IPC分类号： H04L25/02
CPC分类号： H04L25/0212 , H04L25/0242 , H04L27/2601
摘要： A channel estimation method comprises the steps: a pseudo-random sequence carrying with a cycle prefix whose length is L C is inserted in the signal data segment sent by the transmission end as a training sequence every a signal data segment having a special length, L C is larger than L-1, wherein L is the maximum delay of the discrete channel model of the current channel, the length of the pseudo-random sequence not carrying with the cycle prefix is L P ; the receiving end receives the data of the training sequence, the cross-correlation matrix C is obtained by making cross-correlation using the received data after deleted the cycle prefix portion and the L C shifted pseudo-random sequences, the shifted pseudo-random sequence is obtained by circularly right shifting the pseudo-random sequence as current training sequence 0, 1, ¼, L C -1 times respectively; the estimation of the current channel impulse response is the product of the inverse matrix of C P and matrix C, wherein C P is a L C order phalanx and is the auto-correlation matrix of the pseudo-random sequence which is obtained by circularly right shifting the pseudo-random sequence as current training sequence 0, 1, ¼, L C -1 times respectively.

5. 发明申请

WO2009003327A1 基于时分导频段的移动通信系统的信道估计方法审中-公开
公开(公告)号：WO2009003327A1
公开(公告)日：2009-01-08
申请号：PCT/CN2007/003247
申请日：2007-11-16
申请人：中兴通讯股份有限公司 , 许国平 , 辛雨 , 任亮 , 张欣 , 杨大成
发明人：许国平 , 辛雨 , 任亮 , 张欣 , 杨大成
IPC分类号： H04L25/02
CPC分类号： H04L25/0228 , H04L25/0212 , H04L25/022 , H04L25/0226 , H04L27/2613
摘要： A channel estimation method of the mobile communication system based on the time division pilot field includes following steps: step 1, the transmitting end transmitting the time division pilot sequence including the cyclic prefix; step 2, the receiving end transforming the time division pilot sequence to the frequency domain using the fast fourier transform module, and estimating the channel to obtain the channel frequency response estimation result; step 3, the receiving end transforming back the channel frequency response estimation result to the time domain using the inverse fast fourier transform module, and obtaining the channel impulse response estimation result. The present invention has less complexity than the conventional time domain channel estimation calculation, so the system time delay caused by channel estimation can be reduced.

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