3GPP TSG-T2 SWG5#1
Malmö, Sweden, 28-30 July 1999	TSGT2MT#1(99)006	

Agenda Item:	4

Source:	Telia AB

Title:	Definitions

Document for:	Approval

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Introduction
This is the suggestion on definitions to be included in the report “Multi-mode issues”. The most significant definitions for the work with multi-mode terminals are included here, but more definitions will most probably turn up as the work with the report progresses.

These definitions have also been distributed via the SWG5 e-mail reflector for comments for the duration of a week and during the that time no comments were received.

The definitions

Multi-mode terminal: a terminal that has the ability to communicate with and switch between the different modes within UTRAN.

Multi-system terminal: a terminal that has the ability to communicate with and switch between different generations of access networks (e.g. a terminal that can communicate with both GSM and UMTS) or a terminal that combines a semi-mobile network (e.g. HiperLAN) with UMTS.

Access network: The entities that make the access to a core network possible (e.g. UTRAN in UMTS and BSS in GSM). 
Comment: is this the right division between access network and core network? Or should the entities such as SGSN/GGSN versus MSC/GMSC be included in this definition as well?
Active communication: a terminal is in active communication when a session is ongoing. This can be either a CS or a PS connection.
Band: describes what frequency band/bands are used by the terminal, see also Multi band when a certain radio technology is used but on different frequencies
Camping on a cell: A terminal is camping on a cell when the terminal is able to listen to paging messages from the network in the specific cell.
Core network: the entities in the network that transfer the connection to the right destination (e.g. the SGSN/GGSN in GPRS/UMTS and the MSC/VLR/GMSC in the GSM-network.
Multi-mode identity: one identity that unambiguously identifies a subscriber to the subscribed modes.
Multi-system identity: one identity that unambiguously identifies a subscriber to the subscribed systems. May be combined in e.g. the HLR by several identities used in different systems.
Multi band: when a certain type of radio technology/radio interface is used in different frequency bands (e.g. GSM for both 900 and 1800 MHz).