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GGSN SGSN In the figure 1, GPRS/EDGE and UTRAN are two separated radio networks. When ZTE 2G/3G dual-mode base station is introduced, the 2G/3G radio networks will be converged into one and this will decrease the network construction cost greatly. The GSM/UMTS integrated network is shown in following Figure.
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GGSN The purpose of this document is to describe the MCPA based SDR Remote Radio Unit (RRU) – ZXSDR R8860E, which adopts the unified MicroTCA platform to support all kinds of wireless access technology including GSM, UMTS, CDMA2000, and WiMAX.
ZXSDR R8860E Product Description Highlight Features Dual-Mode RRU ZXSDR R8860E supports various wireless access technologies including GSM and UMTS. Flexible Configuration The MCPA technology introduction enables R8860E capable to support from 1 to 6 TRXs. R8860E supports UMTS 4 Carriers.
Dimension of R8860E is 370 * 197 * 320 mm (Height*Width*Depth). It adopts compact cabinet design, as shown in the following figure: Figure 3 ZXSDR R8860E Physical Structure External Interface R8860E external interface locates at the bottom of the cabinet, as shown in the flowing figureErro! Fonte de referência não encontrada..
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ZXSDR R8860E Product Description Frequency expansion RXin N-KY (MIL-C-39012 or IEC169-16) interface Machine Grounding Section area of cable is 16 mm R8860E indicators and buttons locate at the left bottom of front cabinet, as shown in the flowing figureErro! Fonte de referência não encontrada..
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ZXSDR R8860E Product Description Uplink & downlink transition for radio link signal; Downlink IQ signal multiplexing, uplink IQ signal demultiplexing; Signal amplification, filter, and digit/analog conversion; Optical and electric signal conversion; Extract clock reference signal from baseband unit, provide clock for different modules;...
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ZXSDR R8860E Product Description Application OS, Driver & Support VxWorks Hardware System Hardware Application layer consists of RFS (Radio Frequency Sub-system) and OAM (Operating and Maintenance) sub-systems. Its main function contains software downloading, configuration, management, system maintenance and measurement. OSS (Operation Support Sub-system) is the support layer in this entire framework, which...
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Air Discharge: ±8000V Surge Impact Immunity DC Power port Line(Ground): ±2000V Reliability In ZXSDR R8860E, the algorithm of system reliability is based on the GJB/Z299B Electronic Equipment Reliability Estimation Manual and MIL-HDBK-217F Electronic Equipment Reliability Estimation. Table 14 R8860E Reliability...
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ZXSDR R8860E Product Description Adaptive Multi Rate Round Trip Time Global Positioning System AGPS Assisted GPS Circuit Switch Packet Switch Up Link Down Link WCDMA Release 99 WCDMA Release 4 WCDMA Release 5 WCDMA Release 6 WCDMA Release 7 Point to Point...
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