The third generation systems based on 3GPP specifications will rely on evolutions from the GSM network standards. This approach will ensure that systems based on 3GPP specifications will be capable of rapid development and deployment of competitive service offerings while still enabling global roaming.
The technical specification development work within 3GPP is accomplished by Technical Specification Groups (TSGs) according to the principles and rules contained in the Project reference documentation (Partnership Project Description, Partnership Project Agreement, Partnership Project Working Procedures).
In particular the TSGs report to the Project coordination Group (PCG), and may organize their work in Working Groups and liaise with other groups as appropriate.
Each TSG has the responsibility to develop, approve and maintain the specifications within its terms of reference.
The TSG Core Network (TSG CN) is responsible for the specifications of the Core network part of systems based on 3GPP specifications.
Specifically it has a responsibility for :
User Equipment - Core network layer 3 radio protocols ( Call Control, Session Management, Mobility Management).
Core Network internal interfaces for Call Associated and Non Call Associated signaling
Interconnection of the Core Network with external networks
Management of work items placed under its responsibility
More specifically, TSG-N will address the following areas of work :
Mobility management, call connection control and session management signalling between the user equipment and the core network,
Core network signalling between the core network nodes. The signalling supports functionality such as user information, subscription information and control of network services.
Interworking with 2nd generation networks (e.g. handover to / from GSM).
Definition of interworking functions between the core network and external networks,
Packet related matters such as mapping of QoS [e.g. transparency for IP domain applications, general for bearer types, special for optimized applications such as Voice over IP],
Core network aspects of the Iu interface.
Core network O&M requirements.
|
CN |
Core Network |
|
IP |
Internet Protocol |
|
O&M |
Operations and Maintenance |
|
QoS |
Quality of Service |
|
RR |
Radio Resource |
|
UE |
User Equipment |
|
USIM |
UMTS Subscriber Interface Module |
|
UTRAN |
Universal Terrestrial Radio Access Network |
|
VHE |
Virtual Home Environment |