Title :
System characteristics of CDMA-based PCS
Author :
Ahn, Byeong-Chul ; Park, Yong-Wan ; Choi, An-Na ; Ryu, Seung-Moon
Author_Institution :
Korea Mobile Telecom, Taejeon, South Korea
Abstract :
KMT has developed wireless access technology with its own CDMA method to provide economical and satisfactory PCS. To design an efficient system with high density under a micro and pico cell environment, KMT-PCS applied the following characteristics: (1) the use the coherent DS-CDMA method in the forward and reverse links, (2) the use the inter-cell asynchronous mode, (3) reverse link channel synchronization, and (4) the production of high-quality voice by applying 32 kb/s ADPCM for voice coding. This paper introduces the basic concept of this technology and the channel structure of the testbed under development
Keywords :
cellular radio; code division multiple access; differential pulse code modulation; personal communication networks; pseudonoise codes; radio links; speech coding; spread spectrum communication; subscriber loops; synchronisation; telecommunication channels; 32 kbit/s; ADPCM; CDMA; PCS; channel structure; channel synchronization; coherent DS-CDMA; forward link; intercell asynchronous mode; microcell environment; picocell environment; reverse link; testbed; voice coding; wireless access technology; Bit rate; Cellular networks; Costs; Environmental economics; Frequency synchronization; Multiaccess communication; Personal communication networks; Speech; Telecommunication services; Testing;
Conference_Titel :
Universal Personal Communications. 1995. Record., 1995 Fourth IEEE International Conference on
Conference_Location :
Tokyo
Print_ISBN :
0-7803-2955-4
DOI :
10.1109/ICUPC.1995.497124
