Method and apparatus for terminating transmission of a message in an enhanced random access channel

  • US 9,313,809 B2
  • Filed: 06/30/2014
  • Issued: 04/12/2016
  • Est. Priority Date: 09/28/2007
  • Status: Active Grant
First Claim
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1. A method performed by a wireless transmit/receive unit (WTRU) to communicate with a base station using an enhanced dedicated channel (E-DCH) resource while in a cell forward access channel (CELL_FACH) state, the method comprising:

  • determining if a E-DCH buffer is empty;

    transmitting to the base station scheduling information (SI), wherein the SI includes a total E-DCH buffer status (TEBS) equal to zero when the E-DCH buffer is determined to be empty;

    determining if a hybrid automatic repeat request (HARQ) buffer is empty;

    andreleasing the E-DCH resource when the transmission of the SI with the TEBS equal to zero has been made and the HARQ buffer is empty.

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