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Method and apparatus for coordinating transmission of short messages with hard handoff searches in a wireless communications system

  • US 7,653,157 B2
  • Filed: 03/02/2007
  • Issued: 01/26/2010
  • Est. Priority Date: 05/21/1998
  • Status: Expired due to Fees
First Claim
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1. A method for coordinating times at which a mobile station monitors alternative frequencies with times at which an origination base station transmits short messages, the method comprising:

  • a) determining at the origination base station when the mobile station will be tuned to receive frequencies other than an origination frequency; and

    b) transmitting short messages only at times when the mobile station is known to be tuned to receive the origination frequency based on the knowledge of when the mobile station will be tuned to frequencies other than the origination frequency, the base station transmitting a signal commanding the mobile station to tune to an alternative frequency at a particular time, wherein a window is created during which said mobile station can cease receiving information over the origination frequency without any reduction in a total amount of data.

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