Data Sheet

nanoBTS™ EDGE/AM
R
The new nanoBTS EDGE/AMR picocellular basestation
represents a significant step on the migration path to higher
data rates and more supported users. Based on the world
beating nanoBTS GSM/GPRS basestation it delivers the same
features and functionality for GSM voice and GPRS but with
the addition of high-speed EDGE data and improved voice
quality and capacity using AMR coding.
For operators moving to higher speed data networks by
deploying EDGE, there is a strong requirement to provide high
quality coverage in buildings. With ip.access revolutionary
GSM-over-IP technology it is possible to bring cost effective
high-speed coverage to the user where they most need and
use it.
nanoGSM™
GSM-over-IP picocells for in-building
coverage and capacity
increased data capacity
For many of the new data services the majority of use will be
indoors where the EDGE BTS will be physically close to the user.
The quality of the signal can be correspondingly higher, so the
higher rate data coding schemes will be available to the user. The
nanoBTS EDGE/AMR supports all the EDGE coding schemes from
MCS1- MCS9 giving a maximum nominal data rate of 414kpbs
which is up to three times the maximum data rate of the
GSM/GPRS model. The BTS also monitors for the optimum RF
conditions for data transfer and alters the data throughput to
achieve the fastest rates This ensures the best possible user
experience and maximizes the use of the available spectrum.
improved voice quality and capacity
In networks where AMR capable handsets are being deployed the
new coding scheme can be used to improve the quality of voice
calls, improving the user experience. In addition, as the quality of
the AMR half rate coding is very similar to the standard full rate
GSM, half rate AMR can be used to double the number of voice
channels available per BTS. Erlang models show that this
increases the number of supported users by up to three times,
improving the return on investment for the BTS.
easy deployment
Picocells offer a lower cost alternative to the traditional antenna
based approach to providing GSM coverage and capacity within
buildings. Due to the small size and deployment flexibility, the
nanoBTS can easily achieve coverage where needed. The quick
and simple installation using existing Ethernet wiring for both data
and power avoids the need for the expensive site surveys, cabling
installations and access to roof and floor spaces typical of
distributed antenna systems (DAS). The unique Network Listen™
function supplements the conventional RF planning process,
allowing the planners to see into the difficult indoor environment to
optimize the coverage.
For operators with existing nanoBTS deployments the EDGE unit
can be added to an existing installation using the multi TRX
capability. Both units then operate as a single cell to give up to 22
channels of voice together with the high data rates of 414kbps of
the highest EDGE coding schemes.
scalable system architecture
The nanoBTS is a complete GSM basestation that conforms to the
picocell standard and delivers “GSM-over-IP”. It combines a
standard U
m
air interface, which supports the more than 1 billion
GSM handsets in use globally, with an IP based backhaul, which
can take advantage of the existing IP broadband infrastructure.
There are two versions of the nanoBTS EDGE/AMR for operation in
the 1800 and 1900MHz GSM frequency bands. For applications
requiring even greater capacity up to 4 nanoBTS can be combined
into a multiple TRX cell, increasing the number of supported users
per TRX by up to 200%.
The nanoBTS GPRS/GSM and the nanoBTS EDGE/AMR are
controlled by the nanoGSM BSC basestation controller. System
configuration, performance and fault reporting is handled by the
nanoGSM OMC-R management system.
key features
 Up to 3 times the data rate with EDGE support
 Up to 3 times the number of supported users with half rate
AMR
 Support for EDGE coding MCS1-MCS9
 Indoor coverage up to 125,000m
2
 Single 10/100 Ethernet connection
 Smallest footprint in the industry
applications
 Dedicated coverage for SME premises
 In-building capacity and coverage for large corporate
offices
 Stand-alone in-fill for shopping malls, airports or
undergrounds
 Delivering GSM access on ships, aeroplanes and rural
areas