5 2 DEVICE FOR CONVERTING OF AAL5 ATM CELL TO AAL2 ATM CELL

摘要

The present invention relates to an apparatus for converting an ATM Adaptation Layer (ATL) 5 ATM cell mounted in an International Mobile Telecommunication (IMT) -2000 base station controller based on an Asynchronous Transfer Mode (ATM) to an ATM2 ATM cell, and more particularly, voice data. The present invention relates to an apparatus for firstly distinguishing an AAL5 cell from an AAL5 cell carrying non-voice data, and then converting an AAL5 ATM cell into an AAL2 ATM cell, which converts an AAL5 cell carrying voice data into an AAL type 2 ATM cell. According to the apparatus for converting an AAL5 ATM cell into an AAL2 ATM cell according to the present invention, AAL2 instead of AAL1 is adopted when sending voice data to an ATM cell, thereby maximizing the efficiency of BandWeed, which is an AAL2 advantage, and simultaneously using an AAL2 type cell. Has the effect of making it applicable to ATM switches.