12 Configuration of the BTS3012

About This Chapter

This part describes the principles for configuring the BTS3012. It also describes the principlesfor configuring a single cabinet, combined cabinets and cabinet groups.

12.1 Configuration Principles for the BTS3012The BTS3012 provides flexible configuration and supports hybrid topologies over multiplefrequency bands. One BTS3012 cabinet can cover up to six cells.

12.2 Typical Configuration of One BTS3012 CabinetThis part describes the typical configuration of one BTS3012 cabinet.

12.3 Typical Configuration of BTS3012 Cabinet GroupsThis part describes the typical configuration of BTS3012 cabinet groups.

BTS3012Product Description(for 18TRX) 12 Configuration of the BTS3012

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12.1 Configuration Principles for the BTS3012The BTS3012 provides flexible configuration and supports hybrid topologies over multiplefrequency bands. One BTS3012 cabinet can cover up to six cells.

Configuration PrinciplesConfigure the BTS3012 according to the following principles:

l Use a minimum number of antennas.

l Use a minimum number of cabinets.

l Configure all the TRXs that belong to one synchronized cell in one cabinet group.

Adhere to the following principles when configuring the BTS3012 cabinets:

l If less than 18 TRXs are required in the synchronized cells of a site, use one cabinet toconfigure the site.

l If more than 18 TRXs are required in the synchronized cells of a site, use cabinet groupsto configure the site.

Configuration FeaturesThe BTS3012 has the following features in terms of configuration:

l Supports omnidirectional cell coverage and directional cell coverage

l Supports the grouping of three cabinets

l The RF TX mode supports wideband combining, PBT, transmit diversity, and non-combining. The DTRU connected to the DFCU does not support the wideband combiningmechanism.

l The RF RX mode supports the receive diversity, independent receive, and four-way receivediversity.

12.2 Typical Configuration of One BTS3012 CabinetThis part describes the typical configuration of one BTS3012 cabinet.

Configuration of the DTMUThe DTMU works as a main controller in the BTS. It is configured in pairs and works in active/standby mode. One or two DTMUs can be configured in one cabinet.

Configuration of the DATUThe DATU is the antenna and TMA control board. It is configured only when the TMA isconfigured.

Configuration of the DEMU and DMLCThe DEMU and DMLC are configured only if there are six Boolean value inputs or analog alarminputs in the BTS3012.

12 Configuration of the BTS3012BTS3012

Product Description(for 18TRX)

12-2 Huawei Technologies Proprietary Issue 02 (2007-08-15)

Configuration of the DTRU/DDPU/DCOM/DFCU/DFCBl To make full use of the DTRU, configure an even number of TRXs in a cabinet.

l Generally, the DDPU/DCOM is configured in the DAFU subrack.

l The DFCU/DFCB is configured in the DAFU subrack when high traffic volume and widecoverage are required on site.

Configuration of S2/2/2Figure 12-1 shows the cabling of RF cables in an S2/2/2 cell. The RF TX cable is blue, the RFRX cable is red, and the combining short-circuiting signal cable is black.

Figure 12-1 Configuration of S2/2/2

DDPU

TX B

RXB1

RXA1

RXA2

RXA3

RXA4

RXB2

RXB3

RXB4

TX A

DTRU

TX 1

TCOM

RXM 1

RXM 2

RXD 1

RXD 2

TX 2

IN2

IN 1

DDPU

TX B

RXB1

RXA1

RXA2

RXA3

RXA4

RXB2

RXB3

RXB4

TX A

DTRU

TX 1

TCOM

RXM 1

RXM 2

RXD 1

RXD 2

TX 2

IN2

IN 1

DDPU

TX B

RXB1

RXA1

RXA2

RXA3

RXA4

RXB2

RXB3

RXB4

TX A

DTRU

TX 1

TCOM

RXM 1

RXM 2

RXD 1

RXD 2

TX 2

IN2

IN 1

Configuration of S6/6/6Figure 12-2 shows the cabling of RF cables in an S6/6/6 cell.

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Figure 12-2 Configuration of S6/6/6

12.3 Typical Configuration of BTS3012 Cabinet GroupsThis part describes the typical configuration of BTS3012 cabinet groups.

Configuration of the DTMUAll the cabinets should be configured with the DTMUs when the cabinet groups are used.

12 Configuration of the BTS3012BTS3012

Product Description(for 18TRX)

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Configuration of the DTRU/DDPU/DCOM/DFCU/DFCBl In an S4 or a smaller site, use the DDPU.

l In S5-S8 sites, use the DDPU+DCOM combination mode or the DFCU.

l In S9-S18 sites, use the DDPU+DCOM or DFCU+DFCB combination mode.

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