CDMA2000, also known as IMT-CDMA Multi-Carrier or IS-2000 is the main 2.5 and 3G technology for CDMA based 2G networks (cdmaOne). The CDMA2000 technologies and protocols are defined by the Third Generation Partnership Project 2 (3GPP2). CDMA2000 provides enhanced services to cdmaOne subscribers, as well as forward and backward capabilities in terminals.

The main communication interfaces and protocols in the CDMA2000 network are listed below:
Interfaces between BSC and MSC

• A1: Signaling for Call Control and Mobility Management
• A2: Circuit Switched Voice Traffic
• A5: Circuit based IP traffic (to the IWF and PDN)Interface between BSC and MSC

Interfaces between BSC and PDSN

• A10: IP user data between the BSC and PDSN
• A11: Signaling between the BSC and PDSN

Interfaces between BSCs/ANs/PCFs

• A3: User data and signaling between the source BSC SDU function and target BSC
• A7: Signaling(Handover control) between source/target BSCs
• A13: Signaling(SC/MM function) between source/target ANs/PCFs
• A15: Signaling(inter-AN paging control) between source/target ANs

Interfaces for Circuit Switched

• C: Signaling between MSC and HLR
• E: Signaling between MSC and GMSC

Interfaces in Mobile IP Network

• P1: Signaling between AAA and HA/FA
• P-H: Mobile IP user application data between HA and FA
• A12: Signaling between AN/PCF and AN AAA

Interfaces between AN and PCF

• A8: User Traffic between AN and PCF
• A9: Signaling between AN and PCF
• A14: Signaling between AN(SC/MM function) and PCF

CDMA2000 Interfaces and Protocol stacks

Related Terms: CDMA2000, CDMA2000 Interface, CDMA2000 protocol stacks

Reference Links:
http://www.javvin.com/wireless-3g-guide.html: 3G mobile wireless technology quick guide
http://www.javvin.com/wirelessmap.html: Wireless Communication Technology Map