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Unused time slot detection and selection in a mobile radio communication system

  • US 5,396,496 A
  • Filed: 04/05/1993
  • Issued: 03/07/1995
  • Est. Priority Date: 07/12/1990
  • Status: Expired due to Term
First Claim
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1. A mobile radio communication apparatus connectable to a base station over channels of radio frequencies each having a frame format including a plurality of time slots, said mobile radio communication apparatus comprising:

  • an antenna for transmitting and receiving signals at the radio frequencies;

    unused time slot detecting means coupled to said antenna for detecting unused time slots of a radio frequency by detecting the reception field intensity of said signals received at said antenna;

    time slot selecting means coupled to said unused time slot detecting means for selecting one of the unused time slots; and

    channel establishing means for establishing a channel between said mobile radio communication apparatus and said base station in accordance with the radio frequency and the selected time slot.

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