Sprint User Manual 3G Indoor Repeater 3G Indoor Repeater GRS-1923D-SPR User Manual January, 2009 Version 0.
Sprint User Manual 3G Indoor Repeater - INDEX 1. SUMMARY................................................................................... 3 2. SYSTEM CONFIGURATION ......................................................... 4 2.1 GSR-1923D-SPR Service Organization ...................................................... 4 2.2 System Design and Operation.................................................................... 5 3. SPECIFICATIONS ....................................................................
Sprint User Manual 3G Indoor Repeater 1. SUMMARY GRS-1923D-SPR is an analog RF repeater, which improves PCS network. GRS-1923D-SPR receives RF signal from BTS and transmits it to the blanked and shadowed area, thus providing and improving voice and image data services. GRS-1923D-SPR’s goal is to support BTS’s functions proportionately. GRS-1923D-SPR communicates with BTS wirelessly, thus saving additional costs for its maintenance.
Sprint User Manual 3G Indoor Repeater 2. System Configuration 2.1 GRS-1923D-SPR Service Organization GRS-1923D-SPR decreases blanked and shadowed areas and extends cell coverage by re-trans mitting signal. The signal is received from BTS via Antenna directly, thus excluding additional ex penses for signal transmission (like cabling). Service organization of CDMA In-building RF repeat er is shown at the picture below.
Sprint User Manual 3G Indoor Repeater 2.2 System Design and Operation 2.2.1 System Design
Sprint User Manual 3G Indoor Repeater Internal Design NO DESCRIPTION ① ANTENNA PORT ② PSU MODULE (RS-35-3.
Sprint User Manual 3G Indoor Repeater
Sprint User Manual 3G Indoor Repeater 2.2.2 Downlink Path Downlink and Uplink Gain Budgets have similar structure. In case of Downlink Path, RF signal is received from Donor Antenna, and through FWD LNA division, then the signal is transferred to IF division, where desirable Band is selected by Digital Filter. Selected Band is transferred to RF division again, and through FWD PAM, after that the signal is transmitted to User through Server Antenna. Two attenuators use for ALC and NF compensation.
Sprint User Manual 3G Indoor Repeater 2.2.3 Uplink Path Uplink Path is similar in structure to Downlink Path. In case of Downlink Path, RF signal is received from Server Antenna, and through RVS LNA division, then the signal is transferred to IF division, where desirable Band is selected by Digital Filter. Selected Band is transferred to RF division again, and through RVS PAM, after that the signal is transmitted to BTS through Donor Antenna. Two attenuators use for ALC and NF compensation.
Sprint User Manual 3G Indoor Repeater 2.2.4 US PCS Frequency Selection 1900MHz PCS Band Structure GRS-1923D-SPR has 5MHz, 10MHz, 15MHz, 20MHz Paths in IF division, so any of these bandwi dths can be chosen for providing service.
Sprint User Manual 3G Indoor Repeater 3. SPECIFICATIONS 3.1 System Specifications(Applicable to both Uplink & Downlink) ITEM SPECIFICATION Transmit Power 23dBm ± 2.0dBm Frequency Downlink 1930MHz ~ 1975MHz Range Uplink 1850MHz ~ 1895MHz REMARK Gain Range 60dB ~ 80dB DL/UL both Roll Off ≥ 50dBc @ F(edge)±1MHz VSWR 1.5 : 1 Delay 8us In Band Spurious Emission @ Fc±885kHz @ Out band Spurious Emission Fc±885kHz @ Fc±1.98MHz @ Fc±2.
Sprint User Manual 3G Indoor Repeater Waveform Quality Factor > 0.97 Output Power Variation ±2.0dB over Temperature 3.2 Electrical and Environmental Specifications ITEM SPECIFICATION Power & Consumption 100 ~ 240 VAC,60Hz Connector Type N-type female Size 340X300X170 Weight max 40 lbs Reliability, MTBF 50,000 hours Enclosure NEMA4 Operating Temperature -10℃ ~ +50℃ Rel.
Sprint User Manual 3G Indoor Repeater • To limit output power as far as default range • Used for DAS configuration and when oscillation/isolation is a concern • Automatic Gain decrement when output power of repeater is higher ALC (Auto Level Control) than default level • Automatic Gain recovery when output power of repeater is reduced • Shutdown when output power is higher than default level in Minimum Gain • Automatic Recovery Algorithm conversion after Shutdown status • Operate when User control (Only sy
Sprint User Manual 3G Indoor Repeater • Monitoring temperature of repeater Temperature Monitoring • Maximum and minimum set up is possible • Shutdown in over temperature • Automatic recovery after temperature becomes normal (Hysteresis 10 degree) VSWR Monitoring IP address report via E-mail • Monitoring VSWR of Donor ANT Port (Every one and half minute) • Reporting VSWR Alarm and Shutdown when the rate is 3.
Sprint User Manual 3G Indoor Repeater 4. SET UP 4.1 System Set up 4.1.1 Constitution (Based on 1 set) PARAMETER ITEM QUANTITY Major Accessory US PCS 23dBm case 1 EA Main power input cable 1 EA Fixable screw 1 SET Mountable brackets 1 EA Manual 1 EA Additional Components User Manual 4.1.2 Notice 1) System Power check: Major electricity is AC110V, therefore please input electricity after power verification. 2) Input condition optimization: DL input condition is -57 ~ -37dBm.
Sprint User Manual 3G Indoor Repeater 4.1.3 System Set up 1) This equipment is basically wall mountable installation. 2) Once aforementioned process is done, open for service get ready. 3) For grounding, there is a grounding terminal in main power supply side and the grounding terminal on a site and unit should be connected same. 4) System installation work is basically performed more than two people and should be careful for unexpected accident.
Sprint User Manual 3G Indoor Repeater Case Mounts - Step 2 4.1.4 Open for Service 1) Check points before open a. Verification of system installation status - Electricity, In/out antenna, coaxial cable connection, equipment mounts status. b. Verification of system accessories - User should check whole necessary accessories. c.
Sprint User Manual 3G Indoor Repeater ① RUN: Green light ON (Off: Green light off) ② ALARM: Green light in normal status, Red light in alarming ③ SHUT DOWN: Green light in normal status, Red light in Shutdown status ④ Number of LED bar on front side of repeater will show input power signal level Less than -86dBm: LED 1 bar -85dBm ~ -70dBm: LED 2 bar -69dBm ~ -54dBm: LED 3 bar -53dBm ~ -41dBm: LED 4 bar More than -40dBm: LED 5 bar ⑤ Number of LED bar on front side of repeater will show output power signal le
Sprint User Manual 3G Indoor Repeater c. Verification of signal quality and strength in service area - User should verify signal strength and quality of in-service coverage area by using cell phone or other measuring device. d. Verification of upper-level NMS operation status 4.2 Troubleshooting In case of abnormal operation, technician should diagnose abnormality via remote access or directly connecting to repeater using Ethernet cable.
Sprint User Manual 3G Indoor Repeater 4.2.
Sprint User Manual 3G Indoor Repeater Please Check following status; -Proper maximum output power limit level -BTS input level (Spectrum Level) DL over-input alarm -Input RSSI value on Status Page -Downlink Attenuation level Please reset Adapter upon completing Alarm troubleshooting -Make sure output power is operating normally DL over-output alarm -Reset Adapter upon completing Alarm troubleshooting When alarming in -Please make sure output level is operating normally UL over-output alarm -
Sprint User Manual 3G Indoor Repeater -If the Gain is different from normal level, please Check gain of the unit contact A/S team -It is possible for connectors to get too tight and damage the equipment or throughput Cable connector loose -Please contact installer or service provider upon verification Check input signal strength in the service In case of dropped call or bad signal after set up area adjusting attenuation level If input signal strength is not a problem, please -Increase output l
Sprint User Manual 3G Indoor Repeater 4.2.
