1.6 Overview For a GTR 8000 Base Radio in a High Performance Data (HPD) Subsystem
Procedure Steps
1
Enter the following commands at the prompt:
ProCurve Switch 2610-24#
2
ProCurve Switch 2610-24#
erase startup-config
(This command removes any existing switch configuration)
3
ProCurve Switch 2610-24#
config
(This command puts the switch into configuration mode)
4
ProCurve Switch 2610-24(config)#
int X
(Using Port X as an example)
5
ProCurve Switch 2610-24(eth-X)#
speed-duplex 100-Full
(This command sets the interface X to 100MB/Full Duplex)
6
ProCurve Switch 2610-24(eth-X)#
write memory
(This command saves the configuration changes to persistent memory)
1.6 Overview For a GTR 8000 Base Radio in a High
Performance Data (HPD) Subsystem
The GTR 8000 Base Radio provides the radio frequency (RF) link between the system site controller and the
subscriber/mobile radios. The base radio captures inbound signals through external receive (Rx) antennas from
the subscriber/mobile radios and then amplifies, filters, and demodulates the signals into data packets which are
forwarded to the site controller. The site controller routes/receives digitized data payload to/from the Radio Network
Gateway (RNG) for further processing and routing.
The site controller receives digitized data payload and control packets from the RNG and routes them to a specified
base radio. The base radio extracts the control instructions from the packets and uses them for internal management
such as channel frequency assignment. The base radio maps the digital data packets to discreet voltage levels which
are then used to modulate an RF carrier. The modulated RF carrier is amplified and may be combined with other RF
channels, filtered and routed to the transmission (Tx) antennas.
The first four base radios at the site are defined as home channel capable. Settings for the base radio are made
through Unified Network Configurator (UNC) and Configuration/Service Software (CSS).
Besides the power supply module supporting the transceiver and power amplifier modules, it can also provide
auxiliary power to a connected site controller or receive multicoupler/low noise amplifier (RMC/LNA).
The HPD base radio provides a full-duplex RF interface to HPD Mobile Subscriber Units (MSUs). The HPD base
radios are available for 25 kHz HPD operation in the 700 MHz or 800 MHz bands. Up to five HPD base radios may
be installed at the site. Each base radio has an Ethernet connection to both of the site controller modules at the site.
The HPD base radio uses Radio Link Adaptation (RLA) to provide high-speed, reliable, enhanced data performance
when communicating traffic with MSUs. RLA uses adaptive modulation techniques, with slower, and more reliable
modulation for control signaling and retries, and faster modulation methods when traffic is successfully being
delivered between the base radio and MSUs.
6871022P86-B - July 2013
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