Moby Dick Consolidated System Integration Plan

D0103v1.doc Version 1 6.7.2003
RCF to establish it, with the local connection reference, the DSCP code, the source and destination
address of the IP packet, as parameters.
An answer is expected from the RCF, to give the status of this operation, upon which the radio bearer is
declared established or not. The answer will contain the original DSCP code, the radio bearer Id and a
SAP Id as parameters.
If the bearer is established, the IP data packets can be transmitted to the Data Channel Management block
of the RCF (with the radio bearer Id and SAP id), to be sent on the radio bearer by the AS.
Two requests to open a radio bearer can be handled in parallel.
While the request to open a radio bearer is handled, the corresponding IP packets will be stored to be sent
when the bearer is effectively established.
Important point: before the user has been authenticated and authorized, no IP data packet should be
transferred (they should be buffered in the TD-CDMA driver); only signalling packets should be
transferred. This means we should not attempt to open radio bearers until we are authenticated and
authorized.
In the current implementation, we will not buffer IP data packets, we will open radio bearers, and it will
be up to the AAAC Attendant in the Access Router to control the IP packets received, and let them go
further or not.
In a more advanced implementation design, the MTNM could warn the RCM that we are authenticated
and authorized via a specific control message. Before its reception, we buffer IP data packets and after its
reception, we open radio bearers and send IP data packets. This will not be part of the Moby Dick
implementation.
4.1.2.3.6 Packet Reception block
Enhanced IPv6 stack
RCM
Radio Connection
Manager
Radio
Infos
Open /
Close
Packet Transmission
Control Data
Packet Packet
Packet Reception
Control Data
Packet Packet
Conn
RCF
TD-cdma
Infos
TD-CDMA
Connection Manager
Open /
Close
Conn
Paging
Control Channel Mngt
Send /
Receive
Data
Data Channel Mngt
Open / Send /
Close Receive
Data Data
Chanels
AS
Figure 14: Packet Reception block
The IP signalling packets and the IP data packets received from the RCF are directly transmitted to the
IPv6 stack. Some of the IP signalling packets are “pure” IP signalling and will be used by the IPv6 stack.
The other IP signalling packets will be automatically directed to the appropriate module (fast handover,
registration or paging) by the IPv6 stack.
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