A 2.5G GSM/GPRS/EDGE SW Protocol Stack that has been integrated with multiple basebands and shiped in 1bn phones and M2M modules world wide. Extensively field trialed, extremely modular, and independent of undelying hardware. GSM/EGPRS handset stack has been designed to optimise: Performance, incl high data rates, and low latency Footprint: lowest memory use consistent with performance Flexibility: rapid implementation with port to alternate base-band, RF chipsets and RTOS without main code changes; source code option Debug, validation and field trials process: comprehensive graphical tools All code is written in ANSI C and has been ported to 7 chipsets to date. Sub-layers are mostly implemented as individual tasks (save for, e.g. RLC/MAC) communicatingthrough message queues. A description of the standard L1C, L2 & L3 stack is provided.
Class B implementation multi-slot class 12 to 3GPP Release 1999 June 2007
GPRS PDP context. Packet services accessed via integrated TCP/ IP stack, or via PPP using an external PC or PDA.
Conforms to 3GPP Release ’99 / GCF-CC v3.35 bis (GCF-CC Version 3.35.0 dated 2009-07-06) and NAPRD.03 v5.0 bis (PTCRB NAPRD.03 v5.0) based on STAR-Let200Q M2M platform
Data rates to 80Kbps (GPRS); 400Kbps (EGPRS)
AT Command Interpreter implements 27.007 commands for GSM and GPRS; extended command set
SIM Interface supports Phase 1 & 2 cards
Type 1, multi-slot class 12
Simple primitive interface
Generic core design
Internet Protocol (TCP/IP) provided by third party (Mentor Graphics)