초록 ▼

A digital direct wireless communication system that permits direct, point-to-point communication (voice or data) between transceivers without the infrastructure associated with traditional cellular systems. The transceivers may communicate with a Public Switched Telephone Network (PSTN), with a plur

A digital direct wireless communication system that permits direct, point-to-point communication (voice or data) between transceivers without the infrastructure associated with traditional cellular systems. The transceivers may communicate with a Public Switched Telephone Network (PSTN), with a plurality of fixed base units, a plurality of mobile units and possibly, a plurality of repeaters. The mobile units are operable to communicate point-to-point with other mobile units or other fixed base units. Similarly, the fixed base units are operable to communicate point-to-point with other fixed base units or other mobile units. The system repeaters, if present, are dispersed throughout the communication coverage area for receiving and re-transmitting radio signals from the mobile and fixed base units, if necessary. The mobile and fixed base units may also communicate with remote telephone users through the PSTN. In this mode, a mobile user may contact a remotely located telephone (outside the system) by dialing the number for the remote telephone. The mobile unit will establish communication with a fixed base unit associated with the mobile unit. The fixed base unit detects that the call from the mobile is intended for a telephone located outside the point-to-point communication system; i.e. outside the system. Upon detecting this condition, the fixed base unit provides the switching capabilities to connect the mobile unit to the remote telephone.

대표청구항 ▼

[ What is claimed is:] [1.] A method of operating a wireless communication system, said system including a plurality of transceivers, said method comprising:in a first mode of operation, establishing intra-system duplex communication between one of said plurality of transceivers and another one of s

[ What is claimed is:] [1.] A method of operating a wireless communication system, said system including a plurality of transceivers, said method comprising:in a first mode of operation, establishing intra-system duplex communication between one of said plurality of transceivers and another one of said plurality of transceivers, without the use of a public switched telephone network comprising:performing a call initiating procedure between an originating transceiver and a destination transceiver including sending a frequency skip code;upon successful completion of said call initiating procedure, establishing voice or data communication between said transceivers comprising:transmitting from the originating transceiver using one of a broadcast frequency pair and transmitting from the destination transceiver using the other one of a broadcast frequency pair;periodically changing said broadcast frequency pair as a function of the frequency skip code; andin a second mode of operation, establishing inter-system duplex communication between one of said plurality of transceivers and a communication device outside of said system, using the public switched telephone network and at least one stationary transceiver.