公开(公告)号：US20160330054A1

公开(公告)日：2016-11-10

申请号：US15108248

申请日：2014-12-23

申请人： GRDF ,  SUEZ GROUPE

发明人： Robert LACOSTE ,  Jean-Louis DORNSTETTER

IPC分类号： H04L27/14 ,  H04W4/00 ,  H04W56/00 ,  H04L7/033 ,  H04L27/12 ,  H04Q9/00

CPC分类号： H04L27/14 ,  H04L7/033 ,  H04L27/10 ,  H04L27/122 ,  H04L27/2014 ,  H04Q9/00 ,  H04Q2209/40 ,  H04Q2209/60 ,  H04W4/70 ,  H04W56/0015 ,  H04W56/0035 ,  H04W56/004 ,  H04W88/16

摘要： The invention relates to a method for controlling digital data transmission in a remote-reading apparatus comprising a plurality of metering devices, each equipped with a radiofrequency module for communicating with a radiofrequency transmission/reception device of a gateway system of said apparatus, said method comprising a step of transmitting a digital signal from said radiofrequency module to said radiofrequency transmission/reception device and/or from said radiofrequency transmission/reception device to said radiofrequency module, said transmission being carried out via a carrier modulated by frequency shift modulation, said method being characterized in lo that said frequency shift modulation has a modulation index strictly equal to an integer value divided by two, and in that it comprises a step of receiving the signal transmitted according to said modulation, comprising operations of generation of a synchronization signal synchronized with the received signal and synchronous detection of the received signal by means of said is synchronization signal.

摘要翻译： 本发明涉及一种用于控制远程读取装置中的数字数据传输的方法，包括多个计量装置，每个计量装置配备有用于与所述装置的网关系统的射频发送/接收装置进行通信的射频模块，所述方法包括： 将数字信号从所述射频模块发送到所述射频发送/接收装置和/或从所述射频发送/接收装置发送到所述射频模块的步骤，所述发送是经由频移调制调制的载波进行的，所述方法为 其特征在于，所述频移调制具有严格等于2的整数值的调制指数，并且其包括接收根据所述调制发送的信号的步骤，包括产生与所述调制信号同步的同步信号的操作 接收信号和同步d 通过所述接收信号的检测是同步信号。

公开(公告)号：US20200067636A1

公开(公告)日：2020-02-27

申请号：US16348482

申请日：2017-11-17

申请人： SUEZ GROUPE ,  GRDF

发明人： Jean-Louis DORNSTETTER

IPC分类号： H04L1/00 ,  H03M13/11 ,  H03M13/00

摘要： An LDPC (Low-Density Parity Check) code based on a control matrix represented by a Tanner bipartite graph includes 128 variable nodes of the graph and 64 constraint nodes of the graph, the code being wherein each of the constraint nodes of the graph is connected to 7 variable nodes of the graph; each of the cycles of the graph has a length greater than or equal to 6; the minimum distance of the code is equal to or greater than a predefined threshold for minimum distance.