METHOD AND APPARATUS FOR CONTROL CHANNEL ALLOCATION IN GERAN USING THE CONCEPT OF ORTHOGONAL SUB CHANNELS

摘要

A method and apparatus to improve the quality of control signaling based on signaling messages controlling speech or data transmission over an air interface between at least two Multi-User-Reusing-One-Slot/ Voice Services Over Adaptive Multiuser Channels On One Slot (MUROS/VAMOS) capable wireless transmit/receive units (WTRUs). The WTRUs communicate with each other at the physical layer via signaling messages transmitted in control channels such as Slow Associated Control Channel (SACCH) and Fast Associated Control Channel (FACCH). The SACCH occurences for MUROS/VAMOS multiplexed users are misaligned or shifted to provide the opportunity to exclusively use a full time slot for a single user.