Standard

ETSI TS 101 376-3-19

Revised

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Abstract

The present document contains the technical realization of the Optimal Routing (OR) function within the GMR-1 Mobile Satellite System. The present document specifies: The operational requirements for the mobile satellite OR functionality The functional requirements on a network nodal basis The functional requirements for the MES The purpose of mobile satellite OR is to reduce the number of PLMN and PSTN call legs required to complete a call using the mobile satellite system. The OR function for mobile satellite systems consists of the following: Mobile Origination Gateway Selection. This gateway feature enables the selection of a gateway station and subsequent reregistration within that gateway station to minimize the PSTN/PLMN terrestrial network usage or facilitate MES-MES single-hop calls. Mobile Termination OR. This network feature enables calls to be routed directly to the mobile subscriber's actual location or to his/her forwarded-to destination while minimizing the use of network trunks. The present document addresses the system approach for mobile-originated gateway selection. Mobile termination OR is addressed in detail in GSM 02.79 [7] and GSM 03.79 [8] (not addressed in the present document).

Document information

  • Standard from ETSI_AC
  • Published:
  • Version: 0
  • Document type: IS
  • Additional information
    • V1.1.1