Minimal RBS Assemblies¶

This page will document some minimal configurations of ericsson parts that need to be combined to create a working BTS.

Option "A" (remote radio heads)¶

This is a configuration where we have a 2U rackmount unit indoor hosting the digital side (DUx) and one or multiple remote radio heads (RRUS) which are located outdoor at some height of the antenna pole, preferably as close to the antenna (RF cable loss) but taking into consideratoin the ~23kg load and wind load.

Parts list¶

Qty	Model	Part	Description
1	DUG 20 01		Digital (baseband) unit for GSM
1	DUL 20 01		Digital (baseband) unit for LTE
1	RBS6601 cabinet	BFL 901 009	2U rackmount enclosure hosting DUL + DUG
2	RPM 777 193	RPM 777 193/00160	DC power cable between cabinet and DUG/DUL
1		Variant 1, Variant 2	48V DC power connector plugging into cabinet; there are two different ones (Support System Variant 1 + 2)
1	-	-	DC power supply for DUx (-40.0V to -58.5V, absolute maximum of 1xDUL + 1xDUG = 190W)
1	RRUS xx		Remote Radio Unit (see below)
1			DC power connector on RRUS side
1			DC power supply for RRUS (or "PSU AC" option for AC mains connection)
1	-	-	Grounding cable with cable lug for M8 bolt
4			SFP-Transceivers (1x DUG, 1x DUL, 2x RRUS). 2.5Gbps CPRI line rate should be sufficient
2			Duplex LC fiber patch cables (1x DUG-RRUS, 1x DUL-RRUS) compatible with transceivers

Compatible Remote Radios¶

Please see RRUS about a general description of the various Remote Radio Units.

The important fact here is:

• RRUS 11/61 cannot be used (no GSM support)

Model	Band	Part	GSM Carriers	LTE Carriers
RRUS 01	B5	KRC 118 70/x	1-4 (total)	1-4 (total)
RRUS 01	B8	KRC 118 71/x	1-4 (total)	1-4 (total)
RRUS 02	B0	KRC 161 264/x	1-8	1-4
RRUS 02	B8	KRC 161 261/x	1-8	1-4
RRUS 12	B5	KRC 161 321/x	1-8	1-2
RRUS 12	B8	KRC 161 262/x	1-8	1-2
RRUS 13			1-8	1-3
RRUS 14			1-8	1-3
RRUS 32