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Non-intrusive detection of enhanced capabilities at existing cellsites in a wireless data communication system

  • US 20020183089A1
  • Filed: 05/31/2001
  • Published: 12/05/2002
  • Est. Priority Date: 05/31/2001
  • Status: Active Grant
First Claim
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1. In a data communication system including a wireless subsystem for the transmission of data packets between a server and a wireless handset having a voice/data capability selectable between first and second operating modes, a method of selecting the operating mode of the handset after wireless communication is established between the handset and the subsystem, which comprises the steps of:

  • associating, with the system, a data base containing data indicative of the operating mode capability of the subsystem;

    transmitting query messages on the system from the handset to the data base to retrieve such capability data; and

    operating the handset in the second mode if the retrieved capability data indicates that the subsystem is capable of operation in the second mode.

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