GSM RBS 2308 The GSM EDGE Micro Base Station

Satisfies subscribers and increases revenuesIntroducing RBS 2308 into the network increasescapacity and improves coverage and quality indensed populated areas. It can be deployedpractically anywhere and is ideal for permanentmicro cells, temporary hot spots and dedicated in-building solutions as it is for complete micro celllayer deployment. This means not only a possibilityto serve more satisfied subscribers, but also apossibility for improved Minutes of Use (MoU) persubscriber as outcome.

Easy site search and acquisitionRBS 2308’s small size, discrete design, totallysilent operation and well-proven siting flexibilitymakes site acquisition easy and cost-effective.RBS 2308 is a small yet complete base station. Itincludes transceivers, switching functionality andtransmission. External optional battery back up ispossible as well as the option of having integratedantennas within the base station. It is landlordfriendly with an unobtrusive design and is silent inoperation. It provides practically endless siteopportunities as it can be placed both indoors andoutdoors – both for capacity and coverage pur-poses – with minimal civil works required, therebyreducing site cost.

Easy installation and commissioningRBS 2308 makes site implementation easy andcost effective thanks to lightweight compact designand the flexibility of the site solutions available forthe product.Thanks to its lightweight design and high level ofintegration, it takes one person less than an hourfor installation and commissioning. It can bemounted on a mast/pole as easily as it can beplaced on a wall. To reduce transmission cost and/or to provide flexibility, several transmissionoptions are available. A radio link, MINI-LINK™ EMicro is optimized for use together with RBS 2308for rapid microwave transmission connection to thenetwork. RBS 2308 consists of several replaceableunits and can be installed unit by unit to simplifythe installation, see figure 1.

Easy operation and maintenanceRBS 2308 makes operation easy and cost-effectivethanks to market leading reliability, user friendli-ness and low power consumption. RBS 2308 isdesigned for indoor and outdoor operation world-wide. It is convection cooled with no moving parts,is energy efficient and has low need for preventivemaintenance. It contains the most advancedsoftware for operation and maintenance availableon the base station market today, together with abuilt-in database where information about installedhardware is stored. A user friendly Man MachineInterface (MMI) is provided. To minimize test-timewhen RBS 2308 is mounted out of reach, perma-nent cabling with easy access for theOperation and Maintenance Terminal (OMT) isavailable.Figure 1. Replaceable units in RBS 2308

Radio

Mounting base Interface

and Switching

Unit

Sun Shield

287 01-FGC 101 429© EricssonAB, 2004

Key benefits• Small, lightweight but complete Micro BaseSta tion• GSM 800/E-GSM 900/1800/1900 operation• Four transceivers per cabinet• Scalable up to 12 transceivers per micro cell• No moving parts with totally silent operation• Supports up to 4 external alarms• Low power consumption• Indoor and outdoor wall and pole/mast mounting options• Integrated or external antennas with multicasting box option• Integrated Channel Service Unit (CSU), Long Haul, and Multi drop with bypass functionality.• Permanent OMT cabling option• Synthesized and base band frequency hopping• RX diversity and support for SW Power Boost• Support for Half Rate, Full Rate, Enhanced Full Rate, Adaptive Multi Rate, 14.4 kbit/s, HSCSD, GPRS (CS1-4) and EDGE.

Frequency band: GSM 800, E-GSM 900, GSM 1800, GSM 1900Sectors: 1-3Number of transceivers (per cabinet): 4Expansion possibility Expansion to 8 and 12 transceivers possibleEDGE and GPRS All transceivers supporting EDGE and GPRSRF power into antenna feeders: 2.5 W/34 dBm (GSM 800/GSM 900) * and 2.2 W/33.5 dBm

(GSM 1800/1900) *Combining – Internal combining: Reducing antennas from 4 to 2.– Optional external combining: Possible with multi casting box to 1 antenna (e.g. omni an

tenna or distributed antenna system e.g. for indoor coverageReceiver sensitivity: -108 dBm (TU 50), excluding diversity gainTransmission interface: 1.5 Mbit/s (T1 100) and 2 Mbit/s (E1 75/120)Transmission features: Integrated CSU (T1)Integrated Long Haul (E1/T1 120/100 ohm)Integrated Multi drop with bypass functionality (E1/T1)MINI-LINK™E Micro options (E1 120 ohm)Dimensions inclusive mounting bracket withexternal antennas (w*h*d): 433 x 610 x 270 mm (17 x 24 x 10.6 in.)Volume (inclusive mounting bracket): < 50 litersWeight Master (inclusive mounting bracket): < 42 kg (90 lbs)Weight Extension (inclusive mounting bracket): < 32 kg (71 lbs)Power supply: 100–127/200–250V AC, 50/60 Hz -48V DCPower consumption (average without heating): 190 WOptional optimized external battery backup (EBB-01): >5 minutesOptional long external battery backup (EBB-06): > 1 hourOperating temperature – With AC supply: -33°C – +45°C (-27°F – +113°F)– With fan unit option: -33°C – +55°C (-27°F – +131°F)– With DC supply: -15°C – +45°C (-5°F – +113°F)Weatherproof: IP 55, Enclosure type 3R classAntennas External / integrated sector / integrated omni

Technical specification for RBS 2308

Notes: * Output power after internal combining, four transceivers connected to two antenna ports.

Ericsson ABSE-164 80 Stockholmwww.ericsson.com

Two different optional external battery backupversions is available; the Power and BatteryCabinet (EBB-06) with approximately one hourbattery back-up and the External Battery Back-up(EBB-01) supporting up to ten minutes batteryback-up.

Easy expansionRBS 2308 makes capacity expansion easy andcost effective thanks to instant and flexiblescalability. Expansion to eight or twelve transceiv-ers per micro site with a single Broadcast ControlChannel (BCCH) is easily done by adding expan-sion units, which means that more than four timesthe original capacity can be achieved. An expan-sion unit only consists of mounting base, radioand sun shield, i.e. no Interface and SwitchingUnit is necessary and that makes the installationeasier. With the built-in multi-drop functionality, upto three RBS 2308s can be connected to a single2 Mbit/s transmission line for cost efficientoperation. RBS 2308 supports 1,2 and 3 cellsconfiguration.