Interterminal direct communication in digital mobile communicati

Details Interterminal direct communication in digital mobile communicati Interterminal direct communication in digital mobile communicati

1995-06-23

1997-06-03

Chin, Stephen

Pulse or digital communications

Transceivers

375356, 375358, 370311, 370347, 370350, 370510, 370915, 455 383, 455 511, 455343, H04B 138

Patent

active

056362439

ABSTRACT:
In direct communications between PHS terminals, each terminal detects an intermittent timing signal from a predetermined control channel of the base station. Based on the intermittent timing signal, a terminal intermittently exchanges signaling information with another terminal through an idle channel to establish synchronization therebetween. A calling-party terminal searches for an idle channel and intermittently transmits a control signal to a called-party terminal through the idle channel with intermittently supplying power to a transmitter. A called-party terminal intermittently transmits a response signal to the calling-party terminal through the idle channel. When receiving the response signal from the called-party terminal, synchronization of the calling-party terminal with the called-party terminal is established.

REFERENCES:
patent: 5428638 (1995-06-01), Cioffi et al.
patent: 5570369 (1996-10-01), Jokinen

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