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Fast acquisition of traffic channels for a highly variable data rate reverse link of a CDMA wireless communication system

  • US 6,452,913 B1
  • Filed: 02/29/2000
  • Issued: 09/17/2002
  • Est. Priority Date: 12/17/1997
  • Status: Expired due to Term
First Claim
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1. A method for communication of data between a base station and multiple subscriber units over one or more CDMA communication channels, the method comprising:

  • providing a plurality of subchannels within each of at least one CDMA channel;

    assigning subchannels for communication between the base station and subscriber units on an as-needed basis; and

    maintaining a synchronizing idle mode connection between at least one subscriber unit and the base station, wherein the step of maintaining an idle mode connection further comprises;

    analyzing a signal received form a subscriber unit at the base station and detecting whether a corresponding message from a subscriber unit is early or late; and

    in response thereto, transmitting a timing alignment correction message on a predetermined channel to the corresponding subscriber unit in the idle mode to achieve synchronization with the base station.

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