lpwan Working Group A. Minaburo
Internet-Draft Acklio
Intended status: Informational E. Ramos
Expires: September 6, 2018 Ericsson
S. Shanmugalingam
March 05, 2018

LPWAN Static Context Header Compression (SCHC) over NB-IoT


The Static Context Header Compression (SCHC) specification describes a header compression and fragmentation functionalities for LPWAN (Low Power Wide Area Networks) technologies. SCHC was designed to be adapted over any of the LPWAN technologies.

This document describes the use of SCHC over the NB-IoT channels, and provides elements for an efficient parameterization.

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Table of Contents

1. Introduction

The Static Context Header Compression (SCHC) [I-D.ietf-lpwan-ipv6-static-context-hc] defines a header compression scheme and fragmentation functionality, both specially tailored for Low Power Wide Area Networks (LPWAN) networks defined in [I-D.ietf-lpwan-overview].

Header compression is needed to efficiently bring Internet connectivity to the node within an NB-IoT network. SCHC uses an static context to performs header compression with specific parameters that need to be adapted into the NB-IoT channels.

This document describes the use of SCHC and its parametrizing over the NB-IoT channels.

2. Terminology

This document will follow the terms defined in [I-D.ietf-lpwan-ipv6-static-context-hc], in [I-D.ietf-lpwan-overview], and the (TGPP23720).


3. Architecture

   |UE| \              +------+      +------+
   +--+  \             | MME  |------| HSS  |
          \          / +------+      +------+
   +--+    \+-----+ /      |
   |UE| ----| eNB |-       |
   +--+    /+-----+ \      |
          /          \ +--------+
         /            \|        |    +------+     Service PDN
   +--+ /              |  S-GW  |----| P-GW |---- e.g. Internet
   |UE|                |        |    +------+
   +--+                +--------+

3.1. The Control Plane

3.2. The Data Plane


3.3. SCHC entities


3.4. NB-IoT Channels

(Rule ID on L2)


4. Static Context Header Compression


4.1. SCHC Rules


4.1.1. Rule ID

The Rule ID the SCHC identifies are: * In the SCHC C/D context the Rule used to keep the Field Description of the header packet.


4.2. Packet processing


4.3. SCHC Context


5. Fragmentation

## Fragmentation Headers TBD

5.1. Fragmentation modes


5.2. Fragmentation Parameters


6. Padding


7. Security considerations

3GPP access security is specified in (TGPP33203).

8. 3GPP References

9. Informative References

[I-D.ietf-lpwan-ipv6-static-context-hc] Minaburo, A., Toutain, L. and C. Gomez, "LPWAN Static Context Header Compression (SCHC) and fragmentation for IPv6 and UDP", Internet-Draft draft-ietf-lpwan-ipv6-static-context-hc-10, February 2018.
[I-D.ietf-lpwan-overview] Farrell, S., "LPWAN Overview", Internet-Draft draft-ietf-lpwan-overview-10, February 2018.

Authors' Addresses

Ana Minaburo Acklio 2bis rue de la Chataigneraie 35510 Cesson-Sevigne Cedex, France EMail: ana@ackl.io
Edgar Ramos Ericsson Stockholm Stockholm, Sweden EMail: edgar.ramos@ericsson.com
Sivasothy Shanmugalingam Acklio 2bis rue de la Chataigneraie 35510 Cesson-Sevigne Cedex, France EMail: sothy@ackl.io