Packet signal selecting apparatus and mobile switching center including the same

Claim 1

A packet signal selecting apparatus for a mobile communication system, said system including a plurality of mobile units, a plurality of radio base stations, each said base station communicating through a radio channel With said plurality of mobile units in a radio zone to which said mobile units are assigned, and a mobile switching center for controlling said plurality of radio base stations, in which signals are transmitted, in the form of packet signals, between said mobile switching center and said plurality of radio base stations, said packet signal selecting apparatus being designed so as to select one of a plurality of packet signals transmitted through a plurality of communication paths, so that said packet signal selecting apparatus provides said mobile switching center with means for continuously relaying the respective packet signals from said plurality of mobile units regardless of the quality of the plurality of communication paths, said apparatus comprising: an input terminal; a plurality of signal storage sections for respectively storing a plurality of packet signals input through said input terminal; switching means for distributing a plurality of packet signals continuously input through said input terminal to said plurality of signal storage sections and causing said signal storage sections to respectively store the packet signals; and a discrimination unit, connected to all said signal storage sections, for comparing some or all of the packet signals stored in all said signal storage sections with each other to select one packet signal, and outputting the selected packet signal.