Mobile communications

  • US 5,946,634 A
  • Filed: 12/23/1997
  • Issued: 08/31/1999
  • Est. Priority Date: 01/02/1997
  • Status: Expired due to Term
First Claim
Patent Images

1. A user terminal, comprising:

  • a wireless interface (11,


    a formatting device (13) for applying a low level signal format protocol to a signal for transmission over said wireless interface; and

    a control unit for selectively applying a plurality of alternative high level signalling protocols to said signal via said lower level protocols.

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