Browse Prior Art Database

Lower Layer Guidelines for Robust RTP/UDP/IP Header Compression (RFC3409)

IP.com Disclosure Number: IPCOM000010504D
Original Publication Date: 2002-Dec-01
Included in the Prior Art Database: 2002-Dec-10
Document File: 12 page(s) / 26K

Publishing Venue

Internet Society Requests For Comment (RFCs)

Related People

K. Svanbro: AUTHOR

Abstract

This document describes lower layer guidelines for robust header compression (ROHC) and the requirements ROHC puts on lower layers. The purpose of this document is to support the incorporation of robust header compression algorithms, as specified in the ROHC working group, into different systems such as those specified by Third Generation Partnership Project (3GPP), 3GPP Project 2 (3GPP2), European Technical Standards Institute (ETSI), etc. This document covers only lower layer guidelines for compression of RTP/UDP/IP and UDP/IP headers as specified in [RFC3095]. Both general guidelines and guidelines specific for cellular systems are discussed in this document.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 11% of the total text.

Network Working Group                                         K. Svanbro

Request for Comments: 3409                                      Ericsson

Category: Informational                                    December 2002

    Lower Layer Guidelines for Robust RTP/UDP/IP Header Compression

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 (2002).  All Rights Reserved.

Abstract

   This document describes lower layer guidelines for robust header

   compression (ROHC) and the requirements ROHC puts on lower layers.

   The purpose of this document is to support the incorporation of

   robust header compression algorithms, as specified in the ROHC

   working group, into different systems such as those specified by

   Third Generation Partnership Project (3GPP), 3GPP Project 2 (3GPP2),

   European Technical Standards Institute (ETSI), etc.  This document

   covers only lower layer guidelines for compression of RTP/UDP/IP and

   UDP/IP headers as specified in [RFC3095].  Both general guidelines

   and guidelines specific for cellular systems are discussed in this

   document.

Table of Contents

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

   2.  General guidelines............................................ 2

         2.1.  Error detection....................................... 2

         2.2.  Inferred header field information..................... 3

         2.3.  Handling of header size variation..................... 3

         2.4.  Negotiation of header compression parameters.......... 5

         2.5.  Demultiplexing of flows onto logical channels......... 5

         2.6.  Packet type identification............................ 5

         2.7.  Packet duplication.................................... 6

         2.8.  Packet reordering..................................... 6

         2.9.  Feedback packets...................................... 6

   3.  Cellular system specific guidelines........................... 7

         3.1.  Handover procedures................................... 7

         3.2.  Unequal error detection (UED)......................... 8

         3.3.  Unequal error protection (UEP)........................ 9

Svanbro                      Informational                      [Page 1]

RFC 3409         Lower Layer Guidelines for Robust HC      December 2002

   4.  IANA Considerations........................................... 9

   5.  Security Considerations....................................... 9

   6.  References.......................................................