Moby Dick Consolidated System Integration Plan

D0103v1.doc Version 1 6.7.2003
4.3 Radio Gateway Software Specification
This chapter gives the software specification of the different components of the Radio Gateway. These
include the Inter Working Function (IWF), the TD-CDMA driver (Radio Channel Manager and Radio
Convergence Function), the Access Stratum. It also provides the interface between these components, and
also the components involved in other equipments. Below is a high level integrated view of the different
components of the Radio Gateway.
IWF
TD-CDMA to
IP relay
QoS
attendant
IP to
TD-CDMA
relay
QoS Broker
Info
Management
Raw Socket
Interface
Standard Socket
Interface
Raw Socket
Interface
Internal in terface
Protocol
communication
IPv6 Protocol Stack
Kernel space
TD-CDMA NDD on MT
Standard Network
Device Interface
User space
TD-CDMA Network Device Driver
RCM / RCF
Ethernet
Network
Device
Driver
AS on MT
NAS / AS interface
Access Stratum
Figure 55: Integrated View on Radio Gateway
4.3.1 Overview of the different components
This section splits the components identified before in sub-blocks, giving an overview of their role. The
detailed behaviour of these sub-blocks and their interactions will be detailed in the next chapter.
4.3.1.1 Radio Gateway Operating System
The Radio Gateway will run the Linux Operating system, kernel 2.4.4 (option 1) or kernel 2.4.20 (option
2)
The Radio Gateway will run the Real-Time Linux (RTLinux) on top of the Linux Operating System,
patch RTL 3.1 (option 1) or patch RTL 3.2 (option 2).
4.3.1.2 Inter Working Function
This module will act as a relay between the Ipv6 world and the radio world, transferring the IPv6 packets
from one to the other and generating any kind of specific signalling (paging, radio broadcast, QoS
signalling, specific IP signalling).
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