公开(公告)号：EP3447927A3

公开(公告)日：2019-06-05

申请号：EP18196092.3

申请日：2015-01-13

申请人： Itron Global SARL

发明人： Picard, Gilles

IPC分类号： H04B1/7143

摘要： Techniques for frequency-hopping sequence-generation are described herein. In one example, a sequence of pseudo random numbers may be used to generate a scrambling sequence. The scrambling sequence may be used to map an unscrambled sequence of channels into a scrambled sequence of channels. The scrambling sequence may be based on a Galois field. Channel whitening may be performed to reduce channel overuse. The scrambled sequence of channels may be provided to a radio to enable the radio to tune to the channels indicated by the scrambled sequence of channels.

公开(公告)号：EP2211575B1

公开(公告)日：2018-10-31

申请号：EP09156673.7

申请日：2007-09-14

申请人： Itron Global SARL

发明人： Picard, Gilles

IPC分类号： H04W40/22 ,  H04W72/12 ,  H04L29/08

CPC分类号： G08C19/16 ,  G01D4/004 ,  G01D4/006 ,  H01L45/1273 ,  H04B1/7143 ,  H04B7/15 ,  H04B17/318 ,  H04L45/127 ,  H04W8/005 ,  H04W40/005 ,  H04W40/10 ,  H04W40/22 ,  H04W40/248 ,  H04W48/12 ,  H04W56/00 ,  H04W84/18 ,  Y02B90/242 ,  Y02B90/243 ,  Y02B90/246 ,  Y04S20/322 ,  Y04S20/325 ,  Y04S20/36 ,  Y04S20/42

摘要： The present invention relates to a method for providing real time clock distribution in an advanced metering system mesh network, comprising: establishing a network including at least one root node and a plurality of node devices, at least some of which node devices comprise metrology devices; configuring the network for bi-directional communications between the at least one root node and each of the plurality of node devices; establishing a hyperframe having a predetermined length; dividing the hyperframe into a predetermined number of time slots represented by time slot numbers ranging from zero to the predetermined number of time slots; establishing a maximum hyperframe number corresponding to a number of times the hyperframe is to be repeated in a sequence represented by hyperframe numbers ranging from zero to such maximum hyperframe number; configuring the at least one root node for communications with a predetermined time standard; repeatedly incrementing the time slot number so that the time slot number rolls over to zero as the next number following the predetermined number of time slots; incrementing the hyperframe number once following each rollover of the time slot number so that the hyperframe number rolls over to zero as the next number following the maximum number of hyperframes; and broadcasting a message including a timestamp derived from the predetermined time standard from the root node to the plurality of node devices whenever the hyperframe number and the time slot number are both zero, whereby the plurality of node devices may each be synchronized with the root node. Similarly, the invention relates to an advanced metering system mesh network.

公开(公告)号：EP2584709B1

公开(公告)日：2017-12-13

申请号：EP11186210.8

申请日：2011-10-21

申请人： Itron Global SARL

发明人： Picard, Gilles

IPC分类号： H04B1/00 ,  H04B1/40 ,  H04W88/10

CPC分类号： H04B1/0003 ,  H04B1/406 ,  H04W88/06 ,  H04W88/10

公开(公告)号：EP2942873B1

公开(公告)日：2018-10-31

申请号：EP15150968.4

申请日：2015-01-13

申请人： Itron Global SARL

发明人： Picard, Gilles

IPC分类号： H04B1/7143

CPC分类号： H04B1/7143 ,  H04B1/7156

摘要： Techniques for frequency-hopping sequence-generation are described herein. In one example, a sequence of pseudo random numbers may be used to generate a scrambling sequence. The scrambling sequence may be used to map an unscrambled sequence of channels into a scrambled sequence of channels. Channel-repeats may be detected in the scrambled sequence of channels and resolved. Channel whitening may be performed to reduce channel overuse resulting from the channel-repeat resolutions. The scrambled sequence of channels may be provided to a radio to enable the radio to tune to the channels indicated by the scrambled sequence of channels.