A.4 Configuration of a Public Land Mobile Network

23.0023GPPNetwork architectureRelease 17TS

A.4.1 Basic configuration with GLR introduction

In the basic configuration with GLR introduction presented in figure A.1, all the functions related to GLR introduction are considered implemented in different equipment. Therefore, all the interfaces within PLMN are external. Interfaces GLa, GLb, GLc, GLd, GLf, GLg, GLh, and GLi need the support of the Mobile Application Part of the signalling system No. 7 to exchange the data necessary to provide the mobile service. No protocols for the GLe interface are standardized. GLj and GLk need the support of GPRS Tunnelling Protocol – Control to provide the packet domain services.

Figure A.1: Configuration of a PLMN and interfaces with GLR