The goal is to realize the 3GPP by 2G network to 3G network, ensure the smooth transition of future technology backwards compatibility, support arrangement and system between relaxed roaming and compatibility. Its functions: the 3GPP is mainly designed to GSM core network foundation, UTRA (FDD for W - CDMA technology, TDD for TD - CDMA technology) for the wireless interface of third generation technical specifications.
introduction
The law are bought (3GPP) is well ahead of 3G technology standard organization is The ETSI by European, Japanese, Korean ARIB and TTC TTA and American T1 at The end of 1998, sponsored by The designed to study and establish and promote The evolution of GSM network based on The core of 3G standards, namely WCDMA, td-scdma, EDGE, etc. China wireless communication standard group (CWTS) in 1999 to join the 3GPP.
