RTP Payload Format for the TETRA Audio Codec
draft-ietf-payload-tetra-00

Document Type Active Internet-Draft (payload WG)
Last updated 2018-05-02 (latest revision 2018-04-23)
Replaces draft-df-stecker-expertenforum-payload-tetra
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payload                                                      Reisenbauer
Internet-Draft                                                Frequentis
Intended status: Standards Track                              Brandhuber
Expires: October 24, 2018                                       eurofunk
                                                                Hagedorn
                                                                Hagedorn
                                                                Hoehnsch
                                                               T-Systems
                                                                    Wenk
                                                              Frequentis
                                                          April 22, 2018

              RTP Payload Format for the TETRA Audio Codec
                      draft-ietf-payload-tetra-00

Abstract

   This document specifies a Real-time Transport Protocol (RTP) payload
   format for TETRA encoded speech signals.  The payload format is
   designed to be able to interoperate with existing TETRA transport
   formats on non-IP networks.  A media type registration is included,
   specifying the use of the RTP payload format and the storage format.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on October 24, 2018.

Copyright Notice

   Copyright (c) 2018 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents

Reisenbauer, et al.     Expires October 24, 2018                [Page 1]
Internet-Draft  RTP Payload Format for TETRA Audio codec      April 2018

   (https://trustee.ietf.org/license-info) in effect on the date of
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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Conventions Used In This Document . . . . . . . . . . . . . .   3
   3.  Media Format Background . . . . . . . . . . . . . . . . . . .   3
   4.  Payload format  . . . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  RTP Header Usage  . . . . . . . . . . . . . . . . . . . .   4
     4.2.  Payload layout  . . . . . . . . . . . . . . . . . . . . .   4
     4.3.  Payload Header  . . . . . . . . . . . . . . . . . . . . .   5
       4.3.1.  I bit: Frame Indicator  . . . . . . . . . . . . . . .   5
       4.3.2.  F bit: Frame Type . . . . . . . . . . . . . . . . . .   5
       4.3.3.  CTRL: Control bit(5 bits) . . . . . . . . . . . . . .   5
       4.3.4.  C bit: Failed Crypto operation indication . . . . . .   6
       4.3.5.  FRAME_NR: FN (5 bits) . . . . . . . . . . . . . . . .   6
       4.3.6.  R: Audio Signal Relevance (3 bits)  . . . . . . . . .   6
       4.3.7.  S: Spare (7 bits) . . . . . . . . . . . . . . . . . .   7
     4.4.  Payload Data  . . . . . . . . . . . . . . . . . . . . . .   7
   5.  Payload example . . . . . . . . . . . . . . . . . . . . . . .   7
   6.  Congestion Control Considerations . . . . . . . . . . . . . .   8
   7.  Payload Format Parameters . . . . . . . . . . . . . . . . . .   8
     7.1.  Media Type Definition . . . . . . . . . . . . . . . . . .   8
   8.  Mapping to SDP  . . . . . . . . . . . . . . . . . . . . . . .   9
     8.1.  Offer/Answer Considerations . . . . . . . . . . . . . . .  10
     8.2.  Declarative SDP Considerations  . . . . . . . . . . . . .  10
   9.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  10
   10. Security Considerations . . . . . . . . . . . . . . . . . . .  11
   11. References  . . . . . . . . . . . . . . . . . . . . . . . . .  11
     11.1.  Normative References . . . . . . . . . . . . . . . . . .  11
     11.2.  Informative References . . . . . . . . . . . . . . . . .  12
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .  13

1.  Introduction

   This document specifies the payload format for packetization of
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