scope:

This standard provides the specification for the interfaces which coincide with the  Reference Points "A", "Ater", "Aquater", and "Aquinter" defined in the TR45 Network  Reference Model shown in [18]. 

The scope of this standard includes the following topics:

• MSC-BS and BS-BS interfaces:

− descriptions of the specified functional capabilities that provide wireless  telecommunications services across the MSC-BS and BS-BS interfaces as defined in the TR45 Network Reference Model;

 − descriptions of the division of responsibility of the functions provided between the BS and the MSC, and between the source BS and the target BS, without prescribing specific implementations;

 − descriptions of the MSC-BS interface and the BS-BS interface standards that support DS-41 and cdma2000^® systems.

• BS-PCF interfaces:

 − descriptions of the specified functional capabilities that provide packet data  services across the BS-PCF interface;

 − descriptions of the division of responsibility of the functions provided between the BS and the PCF without prescribing specific implementations.

• PCF-PDSN interfaces:

 − descriptions of the specified functional capabilities that provide packet data services across the PCF-PDSN interface;

 − descriptions of the division of responsibility of the functions provided between the PCF and the PDSN without prescribing specific implementations. The interfaces defined in this standard are specified by a set of characteristics, including:

• physical and electromagnetic parameters;

• channel structures;

• message types and contents;

• network operating procedures;

• user data framing and transport.