Posts tagged ‘ 3G ’

GSM/GPRS/WCDMA/3G/UMTS/HSDPA Notes

3G Jan 26, 2008 No comments

AGPS (Assisted Global Positioning System) FACH (Forward Access Channel) Transport Channel (DL) Carries control information to UEs within a cell Carry small amount of packet data No power control Can have several FACHs. But the primary one must have low data rate in order to be received by all terminals. In-band signaling is needed to […]