INTRODUCTION

This Standard presents needed text changes to ANSI/TIA/EIA-41-D to provide support of lower layer (i.e. SS7 SCCP) segmentation and reassembly of ANSI-41 MAP messages.

GENERAL

Segmentation is required when TIA/EIA-41 messages exceed the maximum limits of SS7 signaling units. No hard limit can be defined since it depends on the information present in the SCCP called and calling party addresses (i.e. SSN, SPC and GT) and the presence of SCCP optional parameters (for XUDT messages).

This document describes the enhancements to enable a wireless system to determine whether lower layer message segmentation is supported when communicating with another system. It is assumed that the introduction of SCCP Issue 3 into the ANSI-41 signaling network will be of a gradual, phased nature rather than a bulk network upgrade.

OBJECTIVE

The purpose of this document is to identify and describe needed text changes to ANSI/TIA/EIA-41-D to provide support of lower layer (i.e. SS7 SCCP) segmentation and reassembly of ANSI-41MAP messages.