Patent ID: 8107422
Filing Date: 2012-01-31
Classification: H04W

Abstract:
1. A method for implementing uplink and downlink channel fine time alignments for 3GPP continuous packet data connection (CPC) channels comprising: determining if a HS-SCCH radio frame boundary is detected before a UL DPCCH radio frame boundary; if the HS-SCCH radio frame boundary is detected before the UL DPCCH radio frame boundary, aligning a transition of a UE_DTX_DRX_Enabled control signal from FALSE to TRUE to the HS-SCCH radio frame boundary, tagging a first DRX subframe to be 0, and then tagging a first DTX subframe to be 0; if the UL DPCCH radio frame boundary is detected before the HS-SCCH radio frame boundary, aligning the transition of the UE_DTX_DRX_Enabled control signal from FALSE to TRUE to the UL DPCCH radio frame boundary, tagging the first DTX subframe to be 0, and then tagging the first DRX subframe to be 0; and monitoring configuration signals DL_DRX_Active and UL_DTX_Active, and if the configuration signals DL_DRX_Active is FALSE and UL_DTX_Active is TRUE, aligning the transition of the UE_DTX_DRX_Enabled control signal from FALSE to TRUE to the UL DPCCH radio frame boundary.