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RUS

The RUS is a multi-standard Radio Unit in the RBS6xxx family. Depending on the associated Digital Unit (baseband), it can provide GSM, WCDMA or LTE carriers. It offers 20 MHz of RF bandwidth and has a wideband multi-channel power amplifier (MCPA).

If used for GSM (such as driven by a DUG 20), it can operate 4 soft-TRX inside one RUS.

RF Side

The RUS has a band-width of 20MHz, and there can be multiple "sofware defined" RF carriers within that band-width. In case of GSM, it can have four TRX/carriers in that band.

The standard RUS unit permits a TX power of 20W. However, using software licenses, the power can be increased to 40W or even 60W.

front-haul

The RUS has two CPRI links, each with their own proprietary connector. They don't have a SFP slot, as interconnection with the DUL/DUW/DUG20 is happening over short (less than 0.5m) copper patch cables. However, as the DU side is a SFP form-factor, the signals are assumed to be identical, just on a different mechanical connector.

The cable between standard SFP (DU side) and RUS proprietary connector is called "RPM 777 211/00900".

Models

RUS 01

RUS_01_B3_front_perspective.jpg

RUS_01_B3 has more pictures

  • 60W max power
  • 1 TX/RX and 1 RX branch
  • GSM: 1-4 carriers UL/DL with diversity
  • WCDMA: 1-4 carriers UL/DL with diversity
  • LTE: 20MHz
  • 400W power consumption (max)
  • 7.1kg

Power consumption

Measurements were taken using a RUS 01 B8.

Number of TRX RF Output Power (per TRX) DC Power Consumption (@ 50V)
1 30 dBm 137W
4 30 dBm 155W
1 42 dBm 192W
2 42 dBm 230W
3 42 dBm 270W
4 42 dBm 315W

RUS 02

  • 80W max power
  • 1 TX/RX and 1 X branch
  • GSM: 1-8 carriers UL/DL with diversity
  • WCDMA: 1-4 carriers UL/DL with diversity
  • LTE: 20 MHz
  • 7.1 kg

Power consumption

Measurements were taken using a RUS 02 B8.

MCTR Number of TRX RF Output Power (per TRX) DC Power Consumption (@ 50V)
1x4 4 30 dBm 175 W
1x4 4 40 dBm 270 W
1x4 4 42 dBm 325 W
1x4 4 43 dBm 390 W
1x4 3 43 dBm 330 W
1x4 2 43 dBm 275 W
1x4 1 43 dBm 220 W
1x4 4 44 dBm 435 W
1x8 8 40 dBm 360 W
1x8 8 30 dBm 350 W

RUS 1x

  • 2TX/2RX chains

Updated by laforge over 1 year ago · 15 revisions

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