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Signaling Compression (SigComp) Requirements & Assumptions (RFC3322)

IP.com Disclosure Number: IPCOM000010654D
Original Publication Date: 2003-Jan-01
Included in the Prior Art Database: 2003-Jan-07
Document File: 14 page(s) / 28K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

H. Hannu: AUTHOR

Abstract

The purpose of this document is to outline requirements and motivations for the development of a scheme for compression and decompression of messages from signaling protocols. In wireless environments and especially in cellular systems, e.g., GSM (Global System for Mobile communications) and UMTS (Universal Mobile Telecommunications System), there is a need to maximize the transport efficiency for data over the radio interface. With the introduction of SIP/SDP (Session Initiation Protocol/Session Description Protocol) to cellular devices, compression of the signaling messages should be considered in order to improve both service availability and quality, mainly by reducing the user idle time, e.g., at call setup.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 10% of the total text.

Network Working Group                                           H. Hannu

Request for Comments: 3322                                      Ericsson

Category: Informational                                     January 2003

       Signaling Compression (SigComp) Requirements & Assumptions

Status of this Memo

   This memo provides information for the Internet community.  It does

   not specify an Internet standard of any kind.  Distribution of this

   memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (2003).  All Rights Reserved.

Abstract

   The purpose of this document is to outline requirements and

   motivations for the development of a scheme for compression and

   decompression of messages from signaling protocols.  In wireless

   environments and especially in cellular systems, e.g., GSM (Global

   System for Mobile communications) and UMTS (Universal Mobile

   Telecommunications System), there is a need to maximize the transport

   efficiency for data over the radio interface.  With the introduction

   of SIP/SDP (Session Initiation Protocol/Session Description Protocol)

   to cellular devices, compression of the signaling messages should be

   considered in order to improve both service availability and quality,

   mainly by reducing the user idle time, e.g., at call setup.

Table of Contents

   1.  Introduction....................................................2

   1.1.  Protocol Characteristics......................................2

   1.2.  Cellular System Radio Characteristics.........................3

   2.  Motivation for Signaling Reduction..............................4

   2.1.  Estimation of Call Setup Delay Using SIP/SDP..................4

   3.  Alternatives for Signaling Reduction............................6

   4.  Assumptions.....................................................7

   5.  Requirements....................................................8

   5.1.  General Requirements..........................................8

   5.2.  Performance Requirements......................................9

   6. Security Considerations.........................................11

   7. IANA Considerations.............................................11

   8. References......................................................11

   9. Author's Address................................................12

   10. Full Copyright Statement.......................................13

Hannu                        Informational                      [Page 1]

RFC 3322           SigComp Requirements & Assumptions       January 2003

1. Introduction

   In wireless environments, and especially in cellular systems, such as

   GSM/GPRS, there is a need to maximize the transport efficiency of

   data over the radio interface.  The radio spectru...