sysmoBTS 1020

Introducing sysmoBTS 1020 (data sheet)

sysmoBTS 1002OD

The sysmoBTS 1020 is a new, low-power, small-formfactor IP-backhaul GSM BTS for medium coverage outdoor applications. Its key features are:

  • single TRX, 2 W RF output power

  • supreme cost efficiency

sysmoBTS 1020 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)


< 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 Port (N female)

single-band GSM 850 or E-GSM 900
Sensitivity: –109 dBm
Max. output power: 33 dBm, adjustable in 2dB steps

GPS Input

N female connector for GPS-disciplined oscillator


TI Davinci (ARM926 @ 405 MHz + DSP @ 804 MHz)

Input Voltage

36-60 V (DC), power consumtion: 20W (typ.)



Internal Memory

128 Mbyte SLC NAND Flash, 128 Mbyte DDR2 SDRAM, microSD socket

Communications Interface

water / dust tight RJ45 Ethernet (100-Base-Tx) port

Software / Logical specification

Number of Transceivers

1 TRX / 8 timeslots

Supported timeslot configurations


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


A5/1, A5/2 and A5/3


GPRS PCU with limited feature set. Initial EDGE implementation.

Max. concurrent calls

14 (TCH/H on 7 timeslots)

Max. simultaneous SMS

60 (7*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 Power Supply

  • G.SHDSL modem for 2-wire copper back-haul

  • PoE injector

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