The GSM BSSAP-LE (Base Station System Application Part, Location Services Extension)
allows for the implementation of location based service servers and the interfaces
to them. GSM BSSAP-LE supports the Uplink Time Difference of Arrival (U-TDOA) location
method, the technology selected to support the stringent requirements of the US
E-911 FCC directive. Location based servers are used to deploy services that enable
users on machines to find other people, vehicles, resources, services or other machines.
They also enable others to find users, as well as enabling users to identify their
own location. With BSSAP-LE, it is possible to implement
GSM network location elements such as a Serving Mobile Location Centers
(SMLC).
BSSAP-LE has numerous Location Based (LBS) service opportunities. LBS is used to
locate a handset in case of calls to emergency numbers such as 911. The ability
to locate callers is becoming a government-mandated capability required by rescue
or medical personnel in locating and rendering assistance. With location based capabilities,
it is also possible to offer revenue generating services which interact with callers,
helping them find points of interest based on the current geographical location.
Coupled with NexGen data capabilities, enhanced voice interaction platforms, and
open service architectures, location-based
services will drive network demand and increase revenue generating potential.
The nature of emergency service requirements demands
high availability. LBS value added services call for flexibility and openness.
Signalware's® high availability attributes and open computing platforms
combined with the BSSAP-LE enabler, is a perfect combination defining a platform
for developing the SMLC network element. The combination brings robustness to the
ability to utilize 3rd party products in offering interfaces to location information.
BSSAP-LE is defined by the 3rd Generation
Partnership Project (3GPP) as an extension to the signaling between the
Mobile Switching Center (MSC)/Visiting Location Register (VLR) and the Base Station
System (BSS). It is a global standard and is used throughout the world in GSM networks.
It utilizes SS7 SCCP class 0 (connectionless) and class 2 (connection oriented)
signaling.
BSSAP-LE can be used in the following network elements:
- Mobile Switching Centers (MSCs)
- Serving Mobile Location Center (SMLC)
- Base Station Controller (BSC)
When used in conjunction with MAP, it enables deployment of network elements such
as the Gateway Mobile Location Center (GMLC). Signalware BSSAP-LE is developed based
on the following specifications:
- 3GPP TS 09.31 V7.4.0 (2000-10) Base Station System Application Part
LCS Extension (BSSAP-LE)
- 3GPP TS 09.31 V8.5.0 (2001-12) Base Station System Application Part LCS Extension
(BSSAP-LE)
- 3GPP TS 08.71 V7.4.0 (2000-11) Location Services (LCS); SMLC-BSS Interface
Layer 3
- 3GPP TS 08.71 V8.5.0 (2002-03) Location Services (LCS); SMLC-BSS Interface
Layer 3
- 3GPP TS 49.031 - V6.0.0 (2003-07)
- 3GPP TS 48.071 - V6.1.0 (2003-07)
Features:
- ETSI and ANSI SCCP capable
- High availability Signalware environment
- C/C++ thread safe library
- Compatible with classic SS7
or SIGTRAN
For more information, please contact sales@ulticom.com.