3 Definitions and abbreviations

23.0673GPPenhanced Multi Level Precedence and Pre-emption service (eMLPP)Release 17Stage 2TS

3.1 Definitions

For the purposes of the present document, the terms and definitions given in 3GPP TS 22.067 and the following apply:

resource pre-emption: the termination of a call of a low priority user such that resources can be made available for a precedence call of higher priority. Resource pre-emption could be initiation resource pre-emption or handover resource pre-emption

called-party pre-emption: termination of a call to a particular user when a higher priority call is directed towards that specific user. Called party pre-emption is decided by the Mobile Station. In case of point-to-point calls, this shall be performed by Call Waiting with automatic acceptance of the waiting call by the Mobile Station

compatible Mobile Station: mobile stations which support eMLPP and therefore have precedence and pre-emption capabilities

non-compatible Mobile Station: mobile stations which do not support eMLPP

SIM: subscriber Identity Module. This specification makes no distinction between SIM and USIM.

Handover: This specification uses the term handover for GSM and the same term meaning relocation in UMTS.

3.2 Abbreviations

For the purposes of the present document, the abbreviations given in 3G TR 21.905 apply.