User's Manual

QDBS–Broadband Hardware

- 30 -

QUALCOMM Confidential and Proprietary

MAY CONTAIN U.S. EXPORT CONTROLLED INFORMATION

80-D9001-1 Rev. A

implements policies that determine which resources and services a valid user may access, and the

accounting function keeps track of time and data resources used for billing and analysis.

4.3.2. Power Distribution Unit (PDU)

CAUTION: Turning off the components manually, using the PDU’s individual

(numbered) switches may cause irreparable damage to the components.

The PDU is a power controller that provides AC power, EMI/RFI filtering, and spike/surge

protection to the components in the Network Case. While the PDU has a master power switch and

eight momentary touch switches that control the eight individual AC line receptacles, these switches

should not be manually turned on or off as they are controlled by the OA&M computer.

4.3.3. Radio Node Controller (RNC)

The RNC controls one or more Radio Cases, manages the AT’s radio connection and session, and

controls mobility within its service area. The RNC implements the connection, session, stream, and

application layers of the EV-DO protocol stack. The RNC is analogous to the BSC in the QDBS–

Cellular.

Also implemented within the RNC is the Packet Control Function (PCF) that provides connectivity

between the RAN and the PDSN. The PCF manages the packet data state (active, dormant) and

relays end user data packets between the AT and the PDSN. If a AAA server is deployed, the PCF

can also pass the AT’s usage information to the AAA via the PDSN for usage accounting purposes.

4.3.4. Packet Data Serving Node (PDSN)

The Packet Data Serving Node (PDSN) provides wireless packet data services and IP connectivity

for the phones or aircards, to the Internet or private intranet (such as NIPRNET). The PDSN

connects a radio network to an IP network via a serving router. Primarily, the PDSN establishes,

maintains, and terminates PPP packet data sessions from a mobile device to a data network by

routing IP packets to mobile nodes. The PDSN assigns a dynamic or fixed IP address to a mobile

device during a data call. The PDSN is also the entry point to the public Internet or a private

network. Connection to an external IP network is made through an RJ-45 connection.