Patent ID: 9166671
Filing Date: 2015-10-20
Classification: H04B,H04L,H04W

Abstract:
1. A communication system comprising: a plurality of communication device groups, each including a plurality of communication devices; a plurality of first relay devices, one of the first relay devices being provided for each of the communication device groups and including a communication means for exchanging data with any communication device in the corresponding communication device group, a relay means for relaying a data exchange between communication device groups, and a storage means for storing data that is to be relayed; and a second relay device (i) that is connected to the plurality of first relay devices, (ii) includes a communication means for exchanging data with the first relay devices, and a wireless communication means for wirelessly exchanging data with an external device, and (iii) that relays a data exchange between the external device and the plurality of first relay devices, wherein