sysmoBTS 2050

Introducing sysmoBTS (data sheet)

sysmoBTS top/angle view

The sysmoBTS 2050 is a new, low-power, small-formfactor IP-backhaul GSM BTS for medium coverage outdoor applications. It offers supreme cost efficiency and is suitable for a wide range of applications, including:

  • Rural cellular networks in lowest-ARPU regions
  • Rapidly deployable GSM networks
  • Private GSM networks (PBX style use)
  • Remote area GSM deployments, utilizing any IP-based satellite back-haul service
  • Offshore wind farms, oil rigs
  • Onboard coverage on maritime vessels (ferries, cruise ships, commercial vessels)

Benefit from sysmocom's world-class experience in all areas of cellular networks from RAN to core network, permitting flexible integration of other network elements like BSC into the BTS itself.

As the only BTS world-wide, sysmoBTS permits you to run a completely autonomous small GSM network from within the BTS. No external BSC/MSC/HLR/VLR required!

Mechanical / Electrical specification

Dimensions of enclosure (W x H x D) 285 x 230 x 95 mm (measurements excluding pole/wall mount)
Weight < 5 kg
Protection Rating IP 67 rated (dust tight and waterproof) outdoor enclosure for outdoor wall or pole mount.
Temperature Range
Operating temperature: -40° C to 55° C
Storage temperature: -40° C to 70° C
RF Input (N female)
single-band GSM 850/900/1800/1900 uplink band
Sensitivity: –109 dBm (exceeding 3GPP TS 05.05 pico BTS requirements)
RF Output (N female)
single-band GSM 850/900/1800/1900 downlink band
Max. output power:
40 dBm (2-TRX: 2x37 dBm, 1-TRX: 1x 40 dBm)
adjustable in 1dB steps
GPS Input SMA female connector for GPS-disciplined oscillator
CPU / SoC Two TI Davinci (ARM926 @ 405 MHz + DSP @ 804 MHz)
Input Voltage 24 V (DC), power consumtion: 55W (typ.), 75W (max.)
Cooling Passive.
Internal Memory 128 Mbyte SLC NAND Flash, 128 Mbyte DDR2 SDRAM, microSD socket
Communications Interface Two switched RJ45 Ethernet (100-Base-Tx) ports for daisy-chaining

Software / Logical specification

Number of Transceivers 2 TRX / 16 timeslots
Supported timeslot configurations CCCH, CCCH+SDCCH/4, SDCCH/8, TCH/F, TCH/H, PDCH
Back-haul (Signaling) A-bis according to TS 08.58 and TS 12.21, encapsulated over TCP/IP; Gb (NS/UDP/IP) for GPRS
Back-haul (voice) RTP/UDP/IP with FR/EFR/AMR payload according to IETF and ETSI specs
Ciphering A5/1, A5/2 and A5/3
GPRS/EDGE GPRS PCU with limited feature set. Initial EDGE implementation.
Max. concurrent calls 30 (TCH/H on 15 timeslots)
Max. simultaneous SMS 124 (15*SDCCH/8 + 1*SDCCH/4)
Operating System Embedded Linux (Poky based)

Available Options / Configurations

Hardware Options

  • Internal uSD Card slot for extended memory
  • GPS Antenna
  • External IP65 Antenna Duplexer
  • External IP65 Power Supply
  • G.SHDSL modem for 2-wire copper back-haul

Software Options

  • BTS-only (A-bis/IP interface)
  • integrated BSC (A/IP interface)
  • NITB: Fully autonomous GSM PBX
  • GPRS PCU with Gb interface
  • SDK for customer-specific applications on BTS