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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.

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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...