Syncomm Technology RADIOPORTB1990 RADIO PORT User Manual Specification

Download:
Mirror Download [FCC.gov]
Document ID	163321
Application ID	j0xDmMgnOVlibqs3KJV5zA==
Document Description	Specification
Short Term Confidential	No
Permanent Confidential	No
Supercede	No
Document Type	User Manual
Display Format	Adobe Acrobat PDF - pdf
Filesize	19.54kB (244204 bits)
Date Submitted	2001-08-07 00:00:00
Date Available	2001-08-08 00:00:00
Creation Date	2001-08-06 16:34:27
Producing Software	Acrobat PDFWriter 4.0 for Windows
Document Lastmod	0000-00-00 00:00:00
Document Title	穨新Specification
Document Creator	穨Microsoft Word
Document Author:	穨Lihsia

Radio Port (RP) B1990
RP Functions
The RP provides the link between Subscriber Unit (SU) and Radio Port Control Unit
(RPCU).
Extremely compact and lightweight, Syncomm's RP is economical to purchase and can
be installed outdoors for excellent coverage. The following are basic RP functions:
Link between SU and RPCU
Whether in making a phone call or receiving an alerting message, the user's
SU communicates with the wireline network element (RPCU) through the RP
which functions as a RF modem over the air interface.
Transmission/reception of radio signals
Each RP transmitter takes a framed and encoded signal from the modulator
and converts it to the appropriate carrier frequency. The RP transmitter then
transmits a π/4 DQPSK(Differentially encoded Quadrature Phase Shift Keying)
signal with a TDM radio channel structure out to the SUs. The uplink TDMA
bursts are transmitted by the SUs arrive at the RP, where the TDMA signals are
amplified, translated in frequency, demodulated, diversity combined,
synchronized, decoded, and converted to a TDM line interface signal for
transmission to the RPCU.
Channel coding/decoding for error detection and burst synchronization
The burst is synchronized between RP and SU. Error detection is employed
to mitigate the errors induced during transmission. Because the entire burst is
only 120 bits long, synchronization and error detection processes are combined.
Placing the burst encoding/decoding circuitry at the RP helps to minimize the
RP-to-RPCU transmission requirements.
Synchronization
The local reference clock at the RP will extract the timing from the
transmission wireline facility (e.g., HDSL) to synchronize itself to the network
and may reference all transmit and receive frequencies to the same oscillator, that
is, to maintain the stability of transmit and receive frequencies.
Termination of air interface
Message sets, measurement and performance monitoring data, signaling
information and operations data are combined with the 384Kbps RF channel data
to make up the transmission facility (e.g., HDSL).
Mapping of radio channel bit rate(384kbps) to standard HDSL line rate
The radio channel bit stream is mapped into a HDSL line rate by bit stuffing,
and then the unchannelized HDSL signal is transported over a wireline network
facility to the RPCU. The purpose is to provide a standard physical level line
interface.
n
Performing Self-diagnostics, remote tests and maintenance checks
The RP is equipped with self-diagnostic capabilities that are executed at power
up or upon receiving designa ted test commands. The RP continuously monitors
its hardware and its environment; alarms are generated if any fault is detected.
The RP collects QI, WEI, RSSI, and performance of RP circuitry information and
passes it to the RPCU. The RP utilizes the loopback function to determine if the
RP electronics are in proper working order. This test can be administered
remotely via data links.
Word Error Indication(WEI) measurement
The RP performs WEI measurement and forwards detected error indications to
the RPCU for further processing. The uplink WEI is automatically sent back to
the SU on the next downlink as well.
Received Signal Strength Indication(RSSI) measurement
The RP determines the strength of signals received in each burst and forwards
those measurements to the RPCU for further processing
Quality Indication(QI) measurement
While in communication with the SU, the RP continuously monitors the
receive signal quality of the radio link between itself and the SU by measuring the
signal-to- impairment ratio. Impairments include thermal noise and interference.
This information, used as the input to the uplink power control procedure, is
transmitted back to the RPCU for processing.
Function Specifications
Basic Functions
Operating
Frequency band
Air
Interface JTC (J-STD-014)
Standard
Access Method
TDM/TDMA
Time Slots/Carrier 8
Channel Spacing 300 kHz
Modulation
Scheme
Frequency
Assignment
Frame Length
Operating
Temperature
Interface with RPCU
P-interface
Transmit 1930.5-1989.6 MHz
Receive 1850.5-1909.6 MHz
π/4 DQPSK
QSAFA
2.5 ms
-20 oC to +50o C
Connect to RPCU via P-interface using HDSL transmission.
The P-interface carries an embedded operations channel
(EOC) which conveys commands for performing QSAFA.
l
Performance
The overall status of the RP is reported back to the RPCU
Monitoring
when a failure occurs.
Transmission Characteristics
RF Output Power 800 mW (+29 dBm). The output power is controllable in four
at
antenna steps, from 0 mW to 800 mW.
terminal
Adjacent channel Less than 8 µW at +/- 600 kHz
power emission Less than 2.5 µW at +/- 900 kHz
Spurious
Emission
Less than -13 dBm on transmission band
Less than -74 dBm on receiving band
Complies to FCC standard on other band
Output Impedance 50 ohms (nominal)
Receive Characteristics
Receiving
sensitivity
Selectivity
Better than -101 dBm at 25o C (WER :3%, static)
More than 0 dB at +/- 300 KHz at 25o C
More than 50 dB at +/- 600KHz at 25o C
Antenna diversity 2-branch antenna selection diversity. One antenna supports
duplex receive and transmit. The other only supports receive.
Mechanical Specifications (Reference Only)
l Dimensions
39 cm (W) X 25 cm (H) X 9 cm (D)
l Weight
Less than 10 kg (doesn't include antenna and cable)
Power supply
Line Powered from RPCU. No Separate Battery Backup
Block Diagram
RF
Control
PS
TX
MODEM
BMC
RX
I/F
Power
Source
RPCU
CPU
Controller
Ø Handling the handshaking among RF, Encoding/Decoding, Radio
Channel Measurements and Line Interface Module
Ø Processing the Layer-2 and Layer-3 protocol between RP and RPCU.
Ø The wireline transport between an RP and RPCU can be provided by
HDSL line interfaces. The RP shall convert the RF channel rate of
384Kbps into the appropriate line transmission bit rate.
RF
Ø The channel spacing shall be 300KHz. The port shall receive on the low
band, 1850 to 1910MHz, and transmit on the high band, 1930 to
1990MHz of the duplex frequency allocation.
Ø By performing the diversity combining or selection at the RP, the line
transmission rate to the network can be at the channel rate. Diversity
selection is performed after decoding both branches. The error free word
is chosen, with the corresponding received power and quality indicator
used for power control. If there is a tie, then the branch with the higher
power shall be selected.
Ø The transmit and receive frequencies shall be synthesizer-controllable,
with the frequency specified by the control signaling.
Power Source
Ø Power Source can convert line power to 5Vdc to power up the RP and let
RP work properly.
Ø Power Source can split the HDSL signaling and Power from line input.
Antenna
Ø Omni-directional antenna for PACS
Ø Electrical Specification
Frequency range/MHz
1850-1990MHz
Gain/dBi
8.0dBi
VSWR Max.
1.5
Polarization
Linear vertical
3dB beamwidth/H-plane 360 degree
3dB beamwidth/E-plane 15 degree
Power handling
200W
Impedance
50 Ohms
Connector Type
N-female
Ø Environmental & Mechanical Characteristics
Survival wind speed
180km/hr; max
Temperature
-40 o C to +85 o C
Humidity
100% @ 25 oC
Lightning Protection
DC ground
Radome color
Gray-White
Radome material
Fiberglass
Radiator material
Copper & Brass
Weigh
1kg
Ø Dimensions(mm)

---

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.2
Linearized                      : No
Page Count                      : 6
Creator                         : .穨.Microsoft Word
Create Date                     : 2001:08:06 16:34:27
Title                           : .穨.新Specification
Author                          : .穨.Lihsia
Producer                        : Acrobat PDFWriter 4.0 for Windows

EXIF Metadata provided by EXIF.tools