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Mobile communications apparatus uplink message transmission of battery output level information

  • US 5,901,361 A
  • Filed: 08/03/1998
  • Issued: 05/04/1999
  • Est. Priority Date: 12/11/1996
  • Status: Expired due to Fees
First Claim
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1. A method for detecting a cause for a call drop in a mobile communications system, comprising the steps of:

  • receiving on an uplink communications link from a battery powered mobile communications apparatus signals indicative of monitored apparatus battery power levels;

    storing the received battery power levels;

    detecting an instance of a call drop with respect to that mobile communications apparatus;

    retrieving the stored battery power levels;

    processing the retrieved battery power levels to determine whether battery failure is a likely cause of the call drop; and

    responsive thereto, noting in association with a record of the call drop for that mobile communications apparatus the reason for the call drop being a battery failure.

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