16-02-2013, 03:12 PM
EVOLUTION OF THE MEDIA GATEWAY IN CDMA2000 BASED LAYERED
ARCHITECTURE CORE NETWORK
[attachment=51211]
CDMA Network Architecture
The CDMA network architecture is very much similar to GSM or
WCDMA network architecture. Only the use protocols or codecs
are different.
Media Gateway is a Core Network element, which is controlled
by MSC Server with H.248 protocol
Conclusions
Technically feasible to build a common Media Gateway,
which can interconnect to CDMA, GSM and WCDMA
networks. Biggest difference in the required speech codecs
and framing.
3GPP2 requirements are based more on the IETF RFC, but
many of the 3GPP2 standards are still not complete!
Development from the 3GPP based Media Gateway could
be done in two steps:
1. TDM-based A2-interface with 3GPP definitions
2. IP-based A2p-interface and support for the 3GPP2 speech codecs
and framing
Standardization effort would be needed to align the 3GPP
and 3GPP2 H.248 specifications
ARCHITECTURE CORE NETWORK
[attachment=51211]
CDMA Network Architecture
The CDMA network architecture is very much similar to GSM or
WCDMA network architecture. Only the use protocols or codecs
are different.
Media Gateway is a Core Network element, which is controlled
by MSC Server with H.248 protocol
Conclusions
Technically feasible to build a common Media Gateway,
which can interconnect to CDMA, GSM and WCDMA
networks. Biggest difference in the required speech codecs
and framing.
3GPP2 requirements are based more on the IETF RFC, but
many of the 3GPP2 standards are still not complete!
Development from the 3GPP based Media Gateway could
be done in two steps:
1. TDM-based A2-interface with 3GPP definitions
2. IP-based A2p-interface and support for the 3GPP2 speech codecs
and framing
Standardization effort would be needed to align the 3GPP
and 3GPP2 H.248 specifications