CDMA2000第三層協議技術資料

TIA/EIA Engineering Standards and Publications are designed to serve the public interest through eliminating misunderstandings between manufacturers and purchasers, facilitating interchangeability and improvement of products, and assisting the purchaser in selecting and obtaining with minimum delay the proper product for his particular need. Existence of such Standards and Publications shall not in any respect preclude any member or nonmember of TIA/EIA from manufacturing or selling products not conforming to such Standards and Publications,nor shall the existence of such Standards and Publications preclude their voluntary use by those other than TIA/EIA members, whether the standard is to be used either domestically or internationally.
1 The technical requirements contained in cdma2000 form a compatibility standard for Code
2 Division Multiple Access (CDMA) systems. They ensure that mobile stations manufactured
3 in accordance with this standard can obtain service from a system manufactured in
4 accordance with this standard. These requirements do not address the quality or reliability
5 of that service, nor do they cover equipment performance or measurement procedures.
6 To ensure compatibility (see Note 1), both radio-system parameters and call-processing
7 procedures must be specified. The sequence of call-processing steps that the mobile
8 stations and base stations execute to establish calls has been specified along with the
9 digital control messages and analog signals that are exchanged between the two stations.
10 The base station is subject to fewer compatibility requirements than the dual-mode mobile
11 station. Radiated power levels, both desired and undesired, are fully specified for dual12
mode mobile stations to control the RF interference that one mobile station can cause
13 another. Base stations are fixed in location and their interference is controlled by proper
14 layout and operation of the system in which the station operates. Detailed call-processing
15 procedures are specified for mobile stations to ensure a uniform response to all base
16 stations. Base station call procedures are not specified in detail because they are a part of
17 the overall design of the individual system. However, the base station call-processing
18 procedures must be compatible with those specified for the mobile station. This approach
19 to writing the compatibility specification provides the system designer with sufficient
20 flexibility to respond to local service needs and to account for local topography and
21 propagation conditions.
22 This specification includes provisions for future service additions and expansion of system
23 capabilities.
24 This standard is divided into multiple parts. This part details the Layer 3 call processing
25 and procedures.