Specifications

Mobile Computing
Packet Data Networking
August 08, 2000 68P81095E55-E 6-3
Mobile Computing
An MS may be a phone-type device, an emerging PDA, or Data Terminal Equipment
(DTE) that is directly compatible with the iDEN system. Any MS, PDA or RF
computing device that provides digital data networking (web browsing) and, that is
compatible with iDEN equipment may be used to create truly mobile computing.
When a mobile is engaged in Packet Data it exists as a mobile node on the Internet.
The mobile computing devices use Transmission Control Protocol/Internet Protocol
(TCP/IP). All devices on the system must be configured for these parameters. Table
6-1 summarizes the parameters.
Table 6-1 Packet Data FNE Parameters
Intra-System Mobility
Each MS is configured for packet data in its home DAP. The identification (IP
address) and permissions for Packet Data are contained in the iHLR. The iHLR
operates in the same manner as the D-HLR except it identifies and verifies packet
data services instead of dispatch calling services.
When an MS requests packet data service, the MS registers and authenticates for
dispatch in the D-HLR. The mobile will then register and authenticate for Packet
Data in the iHLR (send an IP address). On approval, the DAP will authorized
service to the mobile and notify the MDG of an MS packet data request (activate the
MS in the MDG).
As the MS moves within the system the location is maintained by Dispatch Location
Area (DLA) in the D-VLR. Paging, selection, connection, re-selection and re-
connection all follow the dispatch procedures. The difference is; when a link is
established a radio link Packet Channel is used instead of a radio link traffic channel.
A packet channel is more dynamically allocated to the TDMA timeslots (See
‘Packet Data Flow’).
Device Parameters
Mobile Provider assigned static IP address (over the air programming)
DAP Valid IMSI for mobile (D-HLR)
IP address for mobile (iHLR)
Permission for Packet Data (iHLR)
Home Agent (serving MDG) Address (iHLR)
MPS Mobile location (serving EBTS address) (from DAP VLR)
Local MDG (Home Agent) Addresses (from DAP VLR)
MDG Valid mobile IP address (mobile)
Internet Presence (Home agent) IP address and clients database
Valid remote host IP address (browsed system)
Dynamic Foreign Agent and clients database