CDMA 120 – cdmaOne and CDMA2000 Concepts and Terminology phần 2

Tiêu chuẩn tiến độ TR 45,5 hiện đang làm việc để phát triển sự phát triển tiếp theo trong gia đình cdmaOne. Các tiêu đề làm việc của các sửa đổi IS-95a là IS-95B, nhưng tiêu chuẩn sẽ được phát hành như TIA/EIA-95. Nội dung của TIA/EIA-95 phiên bản mới này sẽ kết hợp IS-95a, TSB-74, và ANSI J-STD-008 vào một tài liệu duy nhất và loại bỏ sự thừa giữa ba tài liệu. | 80-13321-1 X11 CDMA 120 - cdmaOne and CDMA2000 Concepts and Terminology Section 2 Background Qualcomm TIA EIA-95 CDMA 120 cdma university Section 2-7 TIA EIA-95 IS-95A TSB-74 J-STD-008 - Analog Details Corrections New Capabilities Standardization Progress TR 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. 2002 QUALCOMM Incorporated 2-7 CDMA 120 - cdmaOne and CDMA2000 Concepts and Terminology 80-13321-1 X11 Section 2 Background Qualcomm cdma university CDMA2000 JCDMAI O Section 2-8 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 .