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1. 发明申请

WO2015028684A2 A METHOD FOR GENERATING A BUILT SYMBOL FOR DATA TRANSMISSION AND A METHOD FOR DEMODULATING A RECEIVED BUILT SYMBOL 审中-公开
标题翻译：用于生成用于数据传输的建立符号的方法和用于解调接收到的构建符号的方法
公开(公告)号：WO2015028684A2
公开(公告)日：2015-03-05
申请号：PCT/EP2014068630
申请日：2014-09-02
申请人： MESTDAGH DENIS JULIEN GILLES
发明人： MESTDAGH DENIS JULIEN GILLES
CPC分类号： H04L27/2615 , H04L27/2602 , H04L27/2607 , H04L27/2614 , H04L27/2627 , H04L27/2649
摘要： The invention concerns a method for generating a built symbol comprising a plurality of sub-symbols for transmission comprising data of an original symbol of an orthogonal multi-carrier modulation signal in order to reduce the peak-to-average power ratio (PAPR) and increase its robustness against Doppler effects of the orthogonal multi-carrier modulation signal, the original symbol lasting for a duration Ts and carried by N tones; the method comprising: by applying the intrinsic temporal diversity properties of the complex N-points Inverse Fast Fourier Transform to the original symbol, wherein the number of the generated plurality of sub-symbols is M, each of the M generated sub-symbols lasts for a duration Ts/M and is carried by N/M disjoint tones, and the M generated sub-symbols are time-multiplexed, so that the time-multiplexed built symbol contains all the data at the same rate of the original symbol. The built symbol can be demodulated by utilizing an orthogonal multi-carrier receiver. The invention also concerns a demodulation method configured for demodulating the received built symbol comprising the M sub-symbol by demodulating sequentially sub-symbol by sub-symbol, which significantly improves the robustness of the signal against Doppler effects. The invention comprises further a step of increasing the secrecy at the physical-layer of the communication system by taking all the advantages of the unique properties applied to generate the time-multiplexed built symbol for transmission.
摘要翻译：本发明涉及一种用于生成包括用于传输的多个子符号的内置符号的方法，包括正交多载波调制信号的原始符号的数据，以便降低峰值平均功率比（PAPR）并增大其对正交多载波调制信号的多普勒效应的鲁棒性，原始符号持续持续时间Ts并由N个音调携带; 所述方法包括：通过将复数N点快速傅立叶变换的固有时间分集特性应用于原始符号，其中所生成的多个子符号的数量为M，M个生成的子符号中的每一个持续用于持续时间Ts / M并且由N / M不相交音调承载，并且M个生成的子符号被时分复用，使得时间复用的内置符号包含与原始符号相同速率的所有数据。可以通过利用正交多载波接收机来解调构建的符号。本发明还涉及一种解调方法，其被配置为通过用子符号解码顺序的子符号来解调包含M个子符号的接收内置符号，这显着地改善了信号对多普勒效应的鲁棒性。本发明还包括通过采用所应用的独特属性的所有优点来增加通信系统的物理层的保密性以生成用于传输的时间复用内置符号的步骤。

2. 发明申请

WO2015028684A3 A METHOD FOR GENERATING A BUILT SYMBOL FOR PAPR REDUCTION AND A METHOD FOR DEMODULATING A RECEIVED SYMBOL 审中-公开
公开(公告)号：WO2015028684A3
公开(公告)日：2015-03-05
申请号：PCT/EP2014/068630
申请日：2014-09-02
申请人： MESTDAGH, Denis, Julien, Gilles
发明人： MESTDAGH, Denis, Julien, Gilles
IPC分类号： H04L27/26
摘要： The invention concerns a method for generating a built symbol comprising a plurality of sub-symbols for transmission comprising data of an original symbol of an orthogonal multi-carrier modulation signal in order to reduce the peak-to-average power ratio (PAPR) and increase its robustness against Doppler effects of the orthogonal multi-carrier modulation signal, the original symbol lasting for a duration Ts and carried by N tones; the method comprising: by applying the intrinsic temporal diversity properties of the complex N- points Inverse Fast Fourier Transform to the original symbol, wherein the number of the generated plurality of sub-symbols is M, each of the M generated sub-symbols lasts for a duration Ts/M and is carried by N/M disjoint tones, and the M generated sub-symbols are time- multiplexed, so that the time-multiplexed built symbol contains all the data at the same rate of the original symbol. The built symbol can be demodulated by utilizing an orthogonal multi-carrier receiver. The invention also concerns a demodulation method configured for demodulating the received built symbol comprising the M sub-symbol by demodulating sequentially sub-symbol by sub-symbol, which significantly improves the robustness of the signal against Doppler effects. The invention comprises further a step of increasing the secrecy at the physical-layer of the communication system by taking all the advantages of the unique properties applied to generate the time-multiplexed built symbol for transmission.

3. 发明申请

WO1991000662A1 COMMUNICATION SYSTEM 审中-公开
标题翻译：通讯系统
公开(公告)号：WO1991000662A1
公开(公告)日：1991-01-10
申请号：PCT/EP1989000728
申请日：1989-06-23
申请人： BELL TELEPHONE MANUFACTURING COMPANY, NAAMLOZE ... , ALCATEL N.V. , MESTDAGH, Denis, Julien, Gilles , VAN ENGELSHOVEN, Robertus, Josephus , PAUWELS, Bart, Joseph, Gerard
发明人： BELL TELEPHONE MANUFACTURING COMPANY, NAAMLOZE ... , ALCATEL N.V.
IPC分类号： H04L12/28
CPC分类号： H04L12/28
摘要： This system includes a main station (MS) and a plurality of substations (SX/SZ) which include each a transceiver and are all connected in parallel to first (UL) and second (DL) unidirectional links on which recurrent first and second cells of fixed length are transmitted in opposite direction. Each of these cells contains a plurality of signalling channels smaller than the number of substations. When a substation has to transmit data it starts an allocation procedure wherein the substation cooperates with the main station and by which a channel is allocated to it. Afterwards prior to transmitting the data the substation transmits a request signal in the allocated channel and starts transmission after having received from the main station a grant signal in the homologous signalling channel of a second cell. De-allocation of a channel occurs as soon as the latter is no longer needed.
摘要翻译：该系统包括主站（MS）和多个变电站（SX / SZ），其包括每个收发机，并且都与第一（UL）和第二（DL）单向链路并行连接，在该第一（UL）和第二（DL）单向链路上，固定长度以相反方向传输。这些单元中的每一个包含小于变电站数量的多个信令信道。当变电站必须传输数据时，它开始一个分配程序，其中变电站与主站协作并通过其分配信道。之后，在发送数据之前，变电站在分配的信道中发送请求信号，并且在从主站接收到在第二小区的同源信令信道中的授权信号之后开始发送。只要不再需要信道，就会发生信道的解除分配。

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