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    宽带无线通信中信号生成和信息传输方法、系统及装置
    1.
    发明申请
    宽带无线通信中信号生成和信息传输方法、系统及装置 审中-公开

    公开(公告)号：WO2009070983A1

    公开(公告)日：2009-06-11

    申请号：PCT/CN2008/001932

    申请日：2008-11-26

    Applicant: 大唐移动通信设备有限公司 ,  孙韶辉 ,  于洋 ,  王映民 ,  谢永斌

    Inventor： 孙韶辉 ,  于洋 ,  王映民 ,  谢永斌

    IPC: H04L27/32

    CPC classification number: H04L5/0021 ,  H04L5/0019 ,  H04L5/0044

    Abstract: Method for signal generation in broadband wireless communications, comprises: A. modulating, segmenting and serial-parallel converting the signal data to be transmitted, then computing DFT of the serial-parallel converted data so as to transfer them to frequency domain; B. performing unit block modulating processing and block repeat modulating processing on the frequency domain data, then mapping the unit blocks to assigned time-frequency positions; C. computing IFFT of the mapped unit blocks, then adding them to the cycle prefix, thus the radon sequences in time domain are generated. Apparatus for signal generation, Method and system for message transmission in broadband wireless communications are also disclosed. The problem of resource allocation and scheduling, and problem of interference coordination and control are solved, the throughput and performance of communication system are greatly improved.

    一种确定数据发送偏移量的方法、系统和基站
    4.
    发明申请
    一种确定数据发送偏移量的方法、系统和基站 审中-公开

    公开(公告)号：WO2009062395A1

    公开(公告)日：2009-05-22

    申请号：PCT/CN2008/001823

    申请日：2008-10-30

    Applicant: 大唐移动通信设备有限公司 ,  索士强 ,  潘学明 ,  王映民 ,  孙韶辉 ,  谢永斌

    Inventor： 索士强 ,  潘学明 ,  王映民 ,  孙韶辉 ,  谢永斌

    IPC: H04W16/14

    CPC classification number: H04W56/002 ,  H04W56/0075 ,  H04W72/0446 ,  H04W92/24

    Abstract: A method for determining data transmission offsets comprises synchronization matching a first time division duplex TDD system with a second TDD system (a500); determining a transmission timing advance of the user terminal, in the establishing processing of the uplink synchronization of the second TDD system, according to the deviation between the random access time and the expected time of the user terminal (a501); determining the offsets of the time slots of the second TDD system according to the time difference of the time slots of the first TDD system and the second TDD system(a502); acquiring the data transmission offsets of the time slots by adding the determined time slot offsets and the transmission timing advance(a503). A system and base station for determining the data transmission offsets are provided. The present invention solves the problem of the interference between two TDD systems that are co-located in adjacent channel frequency.

    时分双工系统的无线帧结构确定方法及装置
    5.
    发明申请
    时分双工系统的无线帧结构确定方法及装置 审中-公开

    公开(公告)号：WO2009070964A1

    公开(公告)日：2009-06-11

    申请号：PCT/CN2008/001840

    申请日：2008-11-03

    Applicant: 大唐移动通信设备有限公司 ,  索士强 ,  潘学明 ,  孙韶辉 ,  王映民 ,  谢永斌 ,  王可 ,  唐海

    Inventor： 索士强 ,  潘学明 ,  孙韶辉 ,  王映民 ,  谢永斌 ,  王可 ,  唐海

    IPC: H04B7/26

    CPC classification number: H04B7/2656 ,  H04W56/003

    Abstract: A method for determining the radio frame structure of Time Division Duplex (TDD) system is disclosed, which comprises: the network side configures the radio frame structure used to transmit service information as follows: a radio frame includes two 5 ms half-frames, and each half-frame is divided into eight service slots of duration 0.5 ms each and one special slot field of duration 1 ms; two consecutive service slots form a subframe, and the length of the subframe is 1 ms; the special slot field includes DwPTS, GP and UpPTS. According to the demand of coverage sphere, the lengths of DwPTS, GP and UpPTS in the special slot field are determined, and the radio frame structure used to transmit service information is determined. Through the reconfiguration of the radio frame structure, this invention realizes flexible support for different coverage sphere, and increases the flexibility of satisfying different demand of service, and implements the coexistence of two kinds of TDD systems.

    信号传输方法、装置及通信系统
    6.
    发明申请
    信号传输方法、装置及通信系统 审中-公开

    公开(公告)号：WO2008092387A1

    公开(公告)日：2008-08-07

    申请号：PCT/CN2008/000284

    申请日：2008-02-03

    Applicant: 大唐移动通信设备有限公司 ,  王映民 ,  孙韶辉 ,  谢永斌 ,  蔡月民 ,  唐海

    Inventor： 王映民 ,  孙韶辉 ,  谢永斌 ,  蔡月民 ,  唐海

    IPC: H04L27/26

    CPC classification number: H04L5/0021 ,  H04L5/0044

    Abstract: A method, apparatus and system for transmitting signal, the method includes: using the weighting factor sequence, processing weighting repeating modulation for the basic cell block mapped by the data symbol block at the sending end, and obtaining a plurality of the repeating cell blocks corresponding to the said basic cell block; the sending end maps each repeating cell block to the appointed time-frequency position respectively, then sends the signals in the said time-frequency position; and the receiving end demodulates the plurality of data symbol blocks from the blocks, and incorporates the plurality of data symbol blocks; the said receiving end demodulates the incorporated data symbol blocks, and generates the received data. This scheme can be called as the block repeating spread diversity transmission technology for short, it is based on the information symbol in the time-frequency domain two-dimensional grid point. This scheme doesn't restrict the modulating signal generation manner at bottom, it can form a new multiple address/multiple path transmission scheme, and can be incorporated with the other key technologies in the existing mobile communication.

    宽带时分双工蜂窝系统的频偏校正方法及小区初搜方法
    7.
    发明申请
    宽带时分双工蜂窝系统的频偏校正方法及小区初搜方法 审中-公开

    公开(公告)号：WO2007079680A1

    公开(公告)日：2007-07-19

    申请号：PCT/CN2007/000079

    申请日：2007-01-09

    Applicant: 上海原动力通信科技有限公司 ,  孙韶辉 ,  于洋 ,  王映民

    Inventor： 孙韶辉 ,  于洋 ,  王映民

    IPC: H04L7/02

    CPC classification number: H04L27/2657 ,  H04L7/10 ,  H04L27/2675 ,  H04L27/2684

    Abstract: A frequency offset correction method for wideband time division duplex cell communication system includes: receiving time domain sequences of the two pilot symbols having the scheduled interval in the time slot of transmitting broadcast channel; performing conjugate correlated operation between the two received pilot time domain sequences and the locally stored pilot time domain sequences corresponding to the pilot symbol; and performing the frequency offset correction according to the operation result. A method for cell first searching includes cell coarse synchronization , cell precise synchronization, cell coarse frequency offset correction and cell precise frequency offset correction, and the above frequency offset correction method is used to perform the cell precise frequency offset correction . The present invention increases the precision of frequency offset estimate in the user terminal, reduces the realization complexity at the same time, and provides an effective solution for realizing downlink synchronization and frequency offset correction by wideband time division duplex cell communication system.

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