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CDMA 120 – cdmaOne and CDMA2000 Concepts and Terminology phần 2 pptx
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CDMA 120 – cdmaOne and CDMA2000 Concepts and Terminology
Section 2: Background
80-13321-1 X11
© 2002 QUALCOMM Incorporated 2-7
CDMA 120
cdma university Section 2-7
TIA/EIA-95
MMT98010115Ag.emf
Standardization Progress
TR 45.5 is currently working to develop the next evolution in the cdmaOne family.
The working title of the IS-95A revision is IS-95B, but the standard will be released as
TIA/EIA-95.
Contents of TIA/EIA-95
This new revision will combine IS-95A, TSB-74, and ANSI J-STD-008 into a single document and
eliminate much of the redundancy between the three documents. Most of the analog information
will be deleted and the standard will reference the existing analog standard
IS-553A when applicable. Lastly, TIA/EIA-95 will add technical corrections and new capabilities.
TIA/EIA-95 is Protocol Revision 4.
CDMA 120 – cdmaOne and CDMA2000 Concepts and Terminology
Section 2: Background
80-13321-1 X11
© 2002 QUALCOMM Incorporated 2-8
CDMA 120
cdma university Section 2-8
CDMA2000
Backward-compatible with IS-95 mobile stations
Provides Third Generation (3G) wireless services
– Voice
– Packet-switched data
– Circuit-switched data
CDMA2000 works in a wide range of environments
including:
– Outdoor mega-cells/macro-cells
– Indoor/Outdoor microcells
– Indoor/Outdoor picocells
CDMA2000
The first revision of CDMA2000 was Revision 0, developed by the Telecommunications Industry
Association (TIA) standards body. The TR45 Committee completed the revision in July 1999.
Release A of CDMA2000 was developed by Third Generation Partnership Product 2 (3GPP2), a
consortium of five standards bodies:
TIA in North America
Telecommunications Technology Association (TTA) in Korea
Association of Radio Industries and Businesses (ARIB) and Telecommunications
Technology Committee (TTC) in Japan
China Wireless Telecommunication Standards Group (CWTS) in China.
Release A was completed in March 2000. The discussion of CDMA2000 in this course assumes
CDMA2000 revision A unless otherwise stated.
Revision B of CDMA2000 is expected to be completed by 3GPP2 in 2002.