One document matched: draft-deng-giap-ps-00.txt
Network Working Group H. Deng
Internet-Draft China Mobile
Intended status: Standards Track February 17, 2008
Expires: August 20, 2008
Problem Statement and Requirement: Inter Mobile Access Router Protocol
draft-deng-giap-ps-00
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Copyright (C) The IETF Trust (2008).
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Internet-Draft GIAP PS February 2008
Abstract
This document discusses the problem and requirement of the
communication between mobile access router. With the evolution of
mobile communication, mobile wirless access point will not only using
IP for transporation, but also has much more function to support
mobile communication such as self organization/optimization network,
flat network archtiecture, multiple connections and distributed
network architecture et al .
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Scenarios of implementing inter mobile access router
protocols . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1. Distributed Mobile IP Access Network . . . . . . . . . . . 4
2.2. Half Distributed Mobile IP Access Network . . . . . . . . 5
3. Implementations of the Protocol . . . . . . . . . . . . . . . 6
3.1. Plug in Play Configuration . . . . . . . . . . . . . . . . 6
3.2. Self Organization/Optimization Network . . . . . . . . . . 6
4. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 7
5. Security Considerations . . . . . . . . . . . . . . . . . . . 8
6. Conclusion . . . . . . . . . . . . . . . . . . . . . . . . . . 9
7. Informative References . . . . . . . . . . . . . . . . . . . . 10
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . . 11
Intellectual Property and Copyright Statements . . . . . . . . . . 12
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1. Introduction
while more and more mobile operators are thinking that IP function
will not only be used for transporation by mobile access network, it
could also undertake more tasks such as self organization/
optimization network, multiple connections, IP mobility management,
and distributed IP access network.
There are several distributed wireless IP access network scenarios
may implement inter mobile access router protocol such as self
organization network, mesh, and structured P2P based mobile IP access
network.
In the current mobile operator's network, they have to spend huge
resource for test drive during mobile network deployment and
optimization, which consist of major part of CAPEX and OPEX. With
the potential requirement of multiple connections of wireless
communications and distributed IP access network, IP communications
between mobile access routers could help to reduce the CAPEX and
OPEX, for example this communication could realize an alternative way
of conventional drive test and configuration which need a huge man
power performaning and only get a snapshop result.
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2. Scenarios of implementing inter mobile access router protocols
There are two scenarios implementing inter mobile access router
protocols, one is distributed mobile IP access network, the other is
half distributed mobile IP access network for the sake of self
organization and configuration. .
2.1. Distributed Mobile IP Access Network
Recent development of distributed network has bring several benefit
to industry such as less investment and simple network
infrastructure.
The distributed IP Mobile Access Network is shown in the figure
below:
+-----+
| AGW |
+-----+
|
v v | v
| | | |
+-----+ +-----+ +-----+
| MAR |........| MAR |........| MAR |
+-----+ +-----+ +-----+
v ,': : `. v
| ,' : : `. |
+-----+ : : +-----+
| MAR | : : | MAR |
+-----+ : : +-----+
`. : v v v : ,'
`. : | | | : ,'
+-----+ +-----+ +-----+
| MAR |........| MAR |........| MAR |
+-----+ +-----+ +-----+
The scenario of the above could be wireless mesh network and
structured P2P wireless network architecture. After bringing into
P2P function into each mobile access router and each mobile access
router has multiple wireless radios. One is specifically for mobile
terminal access, others could be used for communication with other
mobile access router. Under such direction, several purpose of inter
access router protocol could be realized in the Internet level, we
are going to illustrate it in the next section.
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2.2. Half Distributed Mobile IP Access Network
Centralized distributed network still cover major deployment in the
current network, based on this network architecture, self
organization/optimization become possible after development of inter
mobile access router protocol.
The half distributed IP mobile access network is shown in the figure
below:
+-----+
| AGW |
+-----+
v v | v v
| | | | |
+-----+ +-----+ | +-----+ +-----+
| MAR |.............| MAR | | | MAR |.............| MAR |
+-----+ +-----+ | +-----+ +-----+
v ,' `. v ,': | `. v ,' `. v
| ,' `. | ,' : | `. | ,' `.|
+-----+ +-----+ : | +-----+ +-----+
| MAR |....... | MAR |-------------+-----------| MAR |.....| MAR |
+-----+ +-----+ : +-----+ +-----+
`.v ,' `. : v v ,' `. ,'v
`| ,' `. : | | ,' `. ,' |
+-----+ +-----+ +-----+ +-----+
| MAR |...........| MAR | | MAR |...........| MAR |
+-----+ +-----+ +-----+ +-----+
v ,'
| ,'
+-----+
| MAR |
+-----+
This scenario has two distributed mobile access network domain, the
core mobile access router is connected with each other and could be
connected to access gateway, and several mobile access router could
work as relay mobile router. Based on this scenario, zero network
configuration could be done based on inter access router IP protocol.
As well self organization/optimization network would prefer to be
implemented based on this.
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3. Implementations of the Protocol
Current organization and optimization is based on low-level interface
and per-device basis, it lacks scalability and testability in real
time operational mobile network.
3.1. Plug in Play Configuration
Mobile network require zero configuration of new mobile IP access
router where Plug and Play could realize based on Internet protocol.
Which could save huge of human resource for test drive and manual
opeartions.
3.2. Self Organization/Optimization Network
The time and cost of deploying, configuring and operating networks,
is expected to increase even further due to the exponential growth in
numbers of network elements in the Internet,especially mobile
networks such as mobile access router. The increasing complication
and dynamic nature of many mobile networks make configuration more
complex and further mandate continuous adaptation and validation of
active configurations in real-time.
To Achieve the characterstical like real time, adaptive, flexibity,
we need not only engineering principles for automated configuration,
but also standardized inter mobile IP access router protocol. The
ultimate goals are to support future large-scale mobile networks that
will self-organize/optimize, dynamically adapt to external events and
allow for low-cost operation.
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4. IANA Considerations
This document makes no requests to IANA.
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5. Security Considerations
Mobile inter access router protocol do require IPsec based protection
mechanism, IKE could be used for neogiation IPsec tunnel between
mobile access routers.
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6. Conclusion
This draft discusses problem and requirement for inter mobile access
router protocol which could support self organziation and
optimization of mobile IP access network.
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7. Informative References
[RFC4067] Loughney, J., Nakhjiri, M., Perkins, C., and R. Koodli,
"Context Transfer Protocol (CXTP)", RFC 4067, July 2005.
[RFC4068] Koodli, R., "Fast Handovers for Mobile IPv6", RFC 4068,
July 2005.
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Author's Address
Hui Deng
China Mobile
53A,Xibianmennei Ave.,
Xuanwu District,
Beijing 100053
China
Email: denghui02@gmail.com
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Deng Expires August 20, 2008 [Page 12]
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