Open AccessCDMA Mobile System Overview: Introduction, Background, and System Concepts
Author(s) -
Han Youngnam,
Bahk Hang Gu,
Yang Seungtaik
Publication year - 1997
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.97.0197.0301
Subject(s) - code division multiple access , engineering , base station , telecommunications , software deployment , w cdma , mobile telephony , computer network , computer science , mobile radio , software engineering
The CDMA Mobile System (CMS) has been developed by Electronics and Telecommunications Research Institute (ETRI) and fieldtested for commercial ser‐ vice deployment in Korea. The project was started in 1989 and completed in 1995 with the CMS commercial test. During the course of development, there had been active technical cooperation with Qualcomm, Inc. and Korean manufacturers. The CMS adopted the basic CDMA concepts conforming to Korean CDMA system which was derived from IS‐95. The CMS functions are allocated to subsystems by considering efficiency and expandability. The CMS consists of mobile stations and the infrastructure which is composed of base stations, mobile exchanges and home location register/authentication center. The commercial field tests performed both in Taejon and Seoul have indicated that the CMS capacity is 10 to 15 times larger than that of AMPS. This paper overviews the development history, system characteristics, architecture and test results.