Hardware Description 2x6r4u

Cabinet Macro base stations include BTS3900, BTS3900L, BTS3900A, BTS3900AL, BTS3900C, and DBS3900. The macro base stations have the following cabinet types: BTS3900, BTS3900L, Advanced power module (APM30) series cabinets, Radio frequency cabinet (RFC), Transmission cabinet (TMC) series cabinets Outdoor mini box (OMB), Battery backup cabinet (BBC) and BTS3900AL.

BBU Baseband refers to the original frequency range of a transmission signal before it is modulated. Baseband can also refer to a type of data transmission in which digital or analogy data is sent over a single non-multiplexed channel. A baseband unit (BBU) is a unit that processes baseband in telecomm systems. A typical wireless telecom station consists of the baseband processing unit and the RF processing unit (remote radio unit - RRU). The baseband unit is placed in the equipment room and connected with RRU via optical fibre. The BBU is responsible for communication through the physical interface. A BBU has the following characteristics: modular design, small size, low power consumption and can be easily deployed. A BBU in a cellular telephone cell site is comprised of a digital signal processor to process forward voice signals for transmission to a mobile unit and to process reverse voice signals received from the mobile unit. The digital signal processor also serves to produce a first supervisory audio tone (SAT) for transmission to the mobile unit by generating successive digital SAT samples which are decoded into a continuous tone. Finally, the digital signal processor detects the presence of a second SAT generated by the mobile unit by sampling and processing successive samples of the second SAT and measuring the power. Huawei BBU include BBU3900, BBU3910, and BBU3910A.

Huawei BBU Description A BBU (BBU3900 and BBU3910 Boards) includes the following boards: main control board, baseband processing board, transmission extension board and fan module, power module, monitoring module, clock board with a satellite card, baseband extension board, and infrastructure interconnection board.

UMPT A UMPT is a universal main processing and transmission unit

WMPT A WMPT is a WCDMA main processing and transmission unit

GTMU The GSM transmission & timing & management unit (GTMU) is a main control unit for GSM

LMPT The LTE Main Processing & Transmission unit (LMPT) is the main control and transmission unit for LTE.

UBBP UBBP is a universal baseband processing unit (UBBP)

WBBP A WBBP is a WCDMA baseband processing unit.

LBBP The LBBP is a baseband processing unit for LTE.

FAN A FAN is a fan module in a BBU.

UPEU A UPEU is a universal power and environment interface unit.

UEIU A UEIU is a universal environment interface unit.

UTRP A universal transmission processing unit (UTRP) provides ports for transmission.

USCU A USCU is a universal satellite card and clock unit.

UBRI A UBRI or UBRIb is a universal baseband radio interface board.

UCIU A UCIU is a universal interconnection infrastructure unit.

UCCU A UCCU is a universal inter-connection combo unit.

Optical Modules An optical module transmits optical signals between an optical port and a fibre optic cable.

BBU3910A is outdoor type and boards like MPT & BBP were constructed as built-in board. The board name is UMDU

MPT A main control processing and transmission unit performs following functions:    

Manages configurations and devices, monitors performance, and processes signalling of a base station. Processes signalling and manages resources for other boards in the BBU. Provides a USB port, transmission ports, and a maintenance port, which are used for automatic software upgrade, signal transmission, and LMT- or U2000-based BBU maintenance. Provides the system clocks

BBP The baseband processing performs the following functions: 

Provides RI ports for communication with RF modules.

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Processes uplink and downlink baseband signals.

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s the multiplex of baseband resources among different modes, thereby implementing multimode concurrency.

RRU/RFU Remote radio unit (RRU) applies to distributed base stations and macro+distributed scenario, radio frequency unit (RFU) applies to macro base stations. They are used to transmit and receive baseband signals, modulate and demodulate RF signals, process data, and amplify the power of signals.

Relationship between the base station type, NE type, and resource module

Commands DSP BRD: display board status DSP BRDVER: display board version DSP BRDTEMP: display board temperature DSP BRDMRINFO: display board manufacture information DSP UUSAGE: display U usage by boards LST VER: list active software information LST SOFTWARE: list software information DSP CLKSTAT: display clock status (MPT) DSP RIPORT: display RI port information DSP FAN: display fan working status LST RRU: list RRU or RFU configuration information LST BBP: list baseband processing unit DSP BBPLNK: display actual information for BBP unit DSP BBPLNKSTATS: display statistics of the datalinks between sub racks