lpwan Working Group A. Minaburo
Internet-Draft Acklio
Intended status: Informational E. Ramos
Expires: September 6, 2018 Ericsson
S. Shanmugalingam
Acklio
March 05, 2018
LPWAN Static Context Header Compression (SCHC) over NB-IoT
draft-minaburo-lpwan-nbiot-hc-00
Abstract
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.
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
Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet-
Drafts is at https://datatracker.ietf.org/drafts/current/.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
This Internet-Draft will expire on September 6, 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
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
Minaburo, et al. Expires September 6, 2018 [Page 1]
Internet-Draft SCHC NB-IoT March 2018
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 3
3. Architecture . . . . . . . . . . . . . . . . . . . . . . . . 3
3.1. The Control Plane . . . . . . . . . . . . . . . . . . . . 3
3.2. The Data Plane . . . . . . . . . . . . . . . . . . . . . 3
3.3. SCHC entities . . . . . . . . . . . . . . . . . . . . . . 4
3.4. NB-IoT Channels . . . . . . . . . . . . . . . . . . . . . 4
4. Static Context Header Compression . . . . . . . . . . . . . . 4
4.1. SCHC Rules . . . . . . . . . . . . . . . . . . . . . . . 4
4.1.1. Rule ID . . . . . . . . . . . . . . . . . . . . . . . 4
4.2. Packet processing . . . . . . . . . . . . . . . . . . . . 4
4.3. SCHC Context . . . . . . . . . . . . . . . . . . . . . . 4
5. Fragmentation . . . . . . . . . . . . . . . . . . . . . . . . 4
5.1. Fragmentation modes . . . . . . . . . . . . . . . . . . . 4
5.2. Fragmentation Parameters . . . . . . . . . . . . . . . . 5
6. Padding . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
7. Security considerations . . . . . . . . . . . . . . . . . . . 5
8. 3GPP References . . . . . . . . . . . . . . . . . . . . . . . 5
9. Informative References . . . . . . . . . . . . . . . . . . . 5
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 6
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.
Minaburo, et al. Expires September 6, 2018 [Page 2]
Internet-Draft SCHC NB-IoT March 2018
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).
o UE. User Equipment
o eNB. Node B. Base Station that controls the UE
o MME. Mobility Management Entity. Handle mobility of the UE
o S-GW. Serving Gateway. Routes and forwards the user data packets
through the access network
o HSS. Home Subscriber Server. It is a database that performs
mobility management
o P-GW. Packet Data Node Gateway. Interface between the internal
with the external network
TBD
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
TDB
Minaburo, et al. Expires September 6, 2018 [Page 3]
Internet-Draft SCHC NB-IoT March 2018
3.3. SCHC entities
TBD
3.4. NB-IoT Channels
(Rule ID on L2)
TBD
4. Static Context Header Compression
TBD
4.1. SCHC Rules
TBD
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.
o In SCHC Fragmentation the specific modes and settings.
o And at least one Rule ID may be reserved to the case where no SCHC
C/D nor SCHC fragmentation were possible.
TBD
4.2. Packet processing
TBD
4.3. SCHC Context
TBD
5. Fragmentation
## Fragmentation Headers TBD
5.1. Fragmentation modes
TBD
Minaburo, et al. Expires September 6, 2018 [Page 4]
Internet-Draft SCHC NB-IoT March 2018
5.2. Fragmentation Parameters
o Rule ID
o DTag
o FCN
o Retransmission Timer
o Inactivity Timer
o MAX_ACK_Retries
o MAX_ATTEMPS
TBD
6. Padding
TBD
7. Security considerations
3GPP access security is specified in (TGPP33203).
8. 3GPP References
o TGPP23720 3GPP, "TR 23.720 v13.0.0 - Study on architecture
enhancements for Cellular Internet of Things", 2016.
o TGPP33203 3GPP, "TS 33.203 v13.1.0 - 3G security; Access security
for IP-based services", 2016.
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", draft-ietf-lpwan-ipv6-static-context-hc-10
(work in progress), February 2018.
[I-D.ietf-lpwan-overview]
Farrell, S., "LPWAN Overview", draft-ietf-lpwan-
overview-10 (work in progress), February 2018.
Minaburo, et al. Expires September 6, 2018 [Page 5]
Internet-Draft SCHC NB-IoT March 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
Minaburo, et al. Expires September 6, 2018 [Page 6]