Ericsson rbs pdf Ericsson is committed to making this migration as seamless. One of Ericssons cornerstone products is a new, indoor macro-base stationthe RBS Скачать файл: файл pdf rbsproductdescription. Скриншоты, фото. RBS datasheet, cross reference, circuit and application notes in pdf format.
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John Turtle Description. It does not necessarily correspond to any specific release or delivery time, nor is it a complete technical specification. The document aims to give a general overview of the RBS The RBS is an indoor macro base station supporting up to twelve transceivers per cabinet. The cabinet has the same footprint and is only marginally higher than the RBS but has doubled capacity due to the new double capacity transceivers and combiners.
The RBS family. Today, the mobile penetration has exceeded 70 percent in some mature markets and many operators are experiencing an almost explosive subscriber growth. In addition, the usage per subscriber is increasing. As a consequence, the operators must be able to handle more traffic in their networks. At the same time, finding new base station sites is becoming increasingly difficult.
Each new site requires building permission and extensive negotiations with landlords. The latter is nowadays an often time-consuming procedure and when the operator is lucky to close the deal, it often proves to be rather expensive. As a result, the site space is a limiting factor for capacity growth and therefore it is of great interest to the operators to stick to the existing sites as long as possible.
The powerful RBS is a means of addressing this need. With the RBS , the requirement on channel separation is decreased for configurations with filter combiners. Another example of a cost saving feature is Extended Range km. The CDU-G combiner can be configured in two modes: capacity mode and the coverage mode, which makes it very flexible.
By running the CDU-G in coverage mode, the output power from the combiner is increased by 3. RBS When using a battery backup, an extra PSU is recommended for recharging of batteries. RBS is equipped with limited transient protection. Figure 3. Front view of DXU The EOM bus is designed as a standard Ethernet port. Figure 4. Double Transceiver Unit. The dTRU supports different ciphering standards.
The ciphering is controlled via software. A hybrid combiner is included inside the dTRU. It is possible to by-pass the hybrid combiner by connecting a cable in the front of the dTRU. Extended Range up to km is supported. The dTRU is hardware prepared to support performance improvements via software upgrades, e.
The CXU makes it possible to expand or reconfigure a cabinet with a minimum of moving or replacing RX cables. Figure 5. Configuration Switch Unit. Duplex filters are included in the CDU. Allows base band or synthesised frequency hopping. Allows base band frequency hopping.
CDU-F is optimised for giving large configurations maximum output power on minimum number of antennas. Figure 6. The duplex filters allows both receiver and transmitter path connections to a common antenna. The duplex configurations also minimise the number of required feeders and antennas as well as the combining loss in the transmission path. The different CDU types are further described in the Radio Specifications for the different frequencies.
Battery backup is available together with VAC supply voltage. The climate handling in the cabinet maintains the internal temperature range by controlling the fans. The signal is then filtered and amplified in the CDU. PA Figure 7. RBS cabinet. All units in the cabinet are easily accessible from the front of the cabinet. There are no requirements on access to the cabinet from the sides or the back, which implies that the cabinets can be mounted side by side with the back to a wall.
Cable entries for antenna feeders, transmission cables, and mains power are concentrated at the top of the cabinet. Backup batteries must be housed outside the RBS cabinet. Battery backup is available for different backup times in external cabinets. Mechanical Dimensions. Unit Width mm Depth mm Height mm Cabinet incl.
Unit Weight kg Fully equipped cabinet incl. Power Requirements. If battery back up is used the maximum incoming power consumption including maximum battery charging can be up to Watt temporary.
These figures correspond to operation during peak load in extreme conditions. The power consumption during operation is however also configuration dependent. Commercial in confidence Description 14 37 3. There are 16 external alarms available unoccupied. The external device sets the alarm by either an open or closed condition.
This can be provided either from the cabinet or prioritised from the battery backup. Each RBS can be configured for stand alone or linear cascade mode. The configuration is performed by means of the OMT. Interfaces T1, 1. The long haul feature allows for 30 dB loss and a more cost efficient transmission network configuration. Coaxial connection 75 Ohm is only available for E1 operation and does not support long haul.
The distance allowed between units is determined by the cable loss, according to the 6 dB receiver sensitivity specified in G. Commercial in confidence Description 16 37 3. The control range is 30 dB in 2 dB steps including the configuration steps from maximum output. Commercial in confidence Description 18 37 4. Hybrids in the dTRUs are used. If the hybrid combiner is used 4 TRXs per cross-polarised antenna is supported. When the hybrid combiner is by-passed the output power is maximised.
Synthesised or base band frequency hopping is allowed for all CDU-G configurations. Commercial in confidence Description 20 37 4. The single cell configuration can be duplicated or triplicated to form multicell configurations by for instance utilising the Multi Drop functionality. Table 5. Max No. Table 6. Commercial in confidence Description 22 37 5. Table 7. Table 8. The control range is 30 dB in 2 dB steps including the configuration steps from maximum output power.
Commercial in confidence Description 28 37 6. Table Commercial in confidence Description 32 37 7 GSM Radio Specification The operating specifications of the radio equipment will in most cases exceed the performance requirements specified in the GSM Technical Specifications.
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