Moby Dick Consolidated System Integration Plan

D0103v1.doc Version 1 6.7.2003
To summarize:
• The Router Advertisements received by the RG on its interface with the AR are intercepted, sent
to the MT on a dedicated TD-CDMA broadcasting channel. They will be transferred to the IPv6
stack on the MT to configure the CoA of the TD-CDMA interface.
• The Neighbour Solicitation requests received by the RG on its interface with the AR are
intercepted. If they are addressed to one of the MT having an open radio connection with the
RG, the RG will reply to them with a Neighbour Advertisement, on behalf of the correct MT,
using its own MAC address instead of the one from the MT.
• The Paging Requests received by the RG on its interface with the AR are intercepted. If they are
addressed to one of the MT having an open radio connection with the RG, the RG will send them
to the MT on a dedicated TD-CDMA paging channel.
• The IPv6 packets received by the RG on its interface with the AR and addressed to a MT having
an open connection with the RG are intercepted (the global scope IPv6 address or the link local
address of the MT can both be used). These packets are transmitted to the MT on a dedicated
channel, with QoS characteristics determined by the DSCP code of the IPv6 packet.
• The IPv6 packets transmitted by the MT to the RG on a dedicated channel, are forwarded by the
RG on its interface with the AR. These packets will then be properly routed by the AR.
• A specific mechanism has been deployed between the RG and the AR / QoS Broker to manage
the opening of radio bearers between the MT and the RG. It is described in details in the chapter
“Bearer Management” of this document.
5.2.10 Paging
5.2.10.1 Interface between Paging Attendant and Paging Module
5.2.10.1.1 Description
On initial registration with or discovery of the Paging Agent, the mobile terminal contacts the paging
attendant in its current Access Router. The protocol messages for discovery and possibly implicit
dormant registration as well as for implicit dynamic establishment of the paging related security
association are specified as ICMPv6 headers and appropriate options.
5.2.10.1.2 Interface mechanisms
The current access technology provides physical interfacing the mobile terminal to its current Access
Router. The ICMPv6-based protocol, specified for building the paging control plane, is carried over this
interface.
5.2.10.1.3 Interface contents
Source Dest Primitive Parameters
MT PA DORMANT_MODE_REQ According to the protocol described in
D0301.
PA MT DORMANT_MODE_REPL According to the protocol described in
D0301.
Table 58: Interface Contents
5.2.10.2 AR Paging Attendant & RG IWF
5.2.10.2.1 Description
To convey on-link paging control messages from the Access Router, implementing the paging attendant,
to the IWF, implemented in the Radio Gateway, many mechanisms have been evaluated, like tunnelling
mechanisms, UDP/IP encapsulation and RG addressing and IWF controlled re-addressing to the paged
mobile terminal’s Solicited Node Multicast Address. The most transparent and realistic solution has been
selected, keeping the complex paging related functionality within the paging attendant (processing of
options, derivation and addressing of the technology specific solicited node multicast address, …). The
paging attendant generates the PAGING_REQUEST message and provides also appropriate addressing of
the dormant mobile terminal. Since the RG performs Proxy Neighbour Discovery for interception and
mapping of Neighbour Solicitations and Neighbour Advertisements, the same mechanisms is deployed
D0103v1.doc 166 / 168