RFC 3322 (rfc3322) - Page 1 of 13
Signaling Compression (SigComp) Requirements & Assumptions
Alternative Format: Original Text Document
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
