Implementation of Adaptive Layer for Multiprotocol Support in Personal Mobile Communication System

摘要

PURPOSE: A method for implementing an adaptive layer for a multi-protocol support in a PCS(Personal Communication System) is provided to handle an HDLC(High level Data Control) transparent mode and a signaling system No.7 mode supplied in an MK5027 chip, so as to supply a function of a multi-protocol layer2. CONSTITUTION: An adaptive layer between a protocol layer3 and a layer2 discriminates a NO.7 standard of layer3 packet and a layer3 packet using an HDLC(High level Data Control) frame, to transfer control to each layer2 implementation unit. The NO.7 layer2 initializes the interface between the layer3 and layer2, and initializes an MK5027. The layer3 and the layer2 perform communication using a defined primitive. A signal unit received to the layer2 is re-formatted appropriately for a protocol standard using the MK5027. And the re-formatted data are transmitted to each destination.