Internet DRAFT - draft-zhang-intarea-wifi-home-network
draft-zhang-intarea-wifi-home-network
Intarea WG R. Zhang
Internet-Draft China Telecom
Intended status: Informational July 16, 2012
Expires: January 17, 2013
Carrier's Wifi at Home Network
draft-zhang-intarea-wifi-home-network-01
Abstract
Today operator could share the wifi network at subscriber's home for
their public subscribers. It need to upgrade the home router which
has integrated wifi already. Some technical requirements have been
clarified in this document.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119 [RFC2119].
Status of this Memo
This Internet-Draft is submitted in full conformance with the
provisions of BCP 78 and BCP 79.
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This Internet-Draft will expire on January 17, 2013.
Copyright Notice
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publication of this document. Please review these documents
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Network Architecture . . . . . . . . . . . . . . . . . . . . . 3
3. Requirements for Carrier's home network . . . . . . . . . . . . 4
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 4
5. Security Considerations . . . . . . . . . . . . . . . . . . . . 4
6. Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . 4
7. Normative References . . . . . . . . . . . . . . . . . . . . . 4
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 5
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1. Introduction
Lots of users are using Wifi at home, but they are not Carrier's
Wifi, using Carrier's ESSID at home could help to expand operator's
wifi network. Normally home wifi is integrated with home router, so
home router need to be updated to support both private home ESSID and
Carrier's ESSID. Operator could either subsidize or compensate some
price for user who could allow to share their home wifi for their
neighbors or passing-by people.
2. Network Architecture
The network architecture is shown as belowed figure 1, home router
will advertise two ESSIDs, one is for home user "Bob's home", the
other is Operator's ESSID. Sometime home user need to deploy his own
wifi AP2 to expand the coverage of wifi, that wifi will have the
diffculty to advertise operator's ESSID because this AP2 is bought by
user other than operator's free offer.
+----------------------------------+ +----------------------+
| | | |
| ESSID 2: Operator's wifi | | +-------+ |
| ESSID 1: Bob's Home | | |Policy | |
| +----+ # | | +-------+ |
| |Home|- - - - - - - - - - >| | | | +-->Mobile |
| |User| _ - - - - - >+--------+ | | | Core |
| +----+ / | Home |CAPWAP +-------+ | |
| / | Router |--------| WLC | | |
| +--------+ / |Wifi AP1|========| BRAS |===+==>Internet|
| |Neighbor|- +--------+ | SR | | |
| |User | | | +-------+ | |
| +--------+ +--------+ | | | | +--->IPTV |
| |Wifi AP2|-----+ | | +------+ +------+ |
| +--------+ | | |Portal|--| AAA | |
| | | +------+ +------+ |
+----------------------------------+ +----------------------+
Figure 1: Carrier's wifi at home
Operator's network architecture needs some upgrade which seems mostly
diffculty part, but actually feasible since it is software based
upgrade. WLC which support CAPWAP need to be considered to be
deployed standalone or integrate together with BRAS. Policy Server
which is used to assign QoS policy at home router, Wifi Portal page
need to be used to authenticate the opeartor's wifi user.
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3. Requirements for Carrier's home network
The requirement for carrier's wifi at home could be listed below
1) The backhaul of home router need to upgrade to support CAPWAP
protocols, BRAS in the backend also need to route operator's wifi
traffic and CAPWAP control signaling to Wireless LAN Controller
correctly.
2) Operator's policy need to be downloaded into the home router to
configure QoS policy inside the homoe router. Mostly home user's
traffic has high priority than neighbor operator's user or visiting
operator's user
3) Neighbor and passying-by people need to be authenticated by the
operator's portal.
4) Home router need to differentiate different VLAN network for home
user and opeartor'wifi user.
4. IANA Considerations
This document makes no request of IANA.
Note to RFC Editor: this section may be removed on publication as an
RFC.
5. Security Considerations
Some applications may rely on the source address as the credentials,
it may need to reestablish the new credential after the application
switchs into a new source address.
6. Acknowledgements
The author thanks the discussion from et al. in the development of
this document.
7. Normative References
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
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Author's Address
Rong Zhang
China Telecom
No.109 Zhongshandadao avenue
Tianhe District,
Guangzhou 510630
China
Email: zhangr@gsta.com
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