Welcome to Software
SymPA for Symbian 9 is now available!
Here you can download a video demo of SymPA for Symbian 9, new location functionalities have been included.
Thank you for your interest in SymPA. To receive your installer please fill out the form below and send it to sympa@lcc.uma.es.
If you have any problem or suggestion, please send an email to sympa@lcc.uma.es with the subject [SymPASupport].
User's Manual SymPA
Press articles
L'Atelier: www.atelier.fr/mobilite/10/21042009/sympa-smartphone-symbian-ercim-operateur-38142-.html 
PDF
Diario Sur.es: www.diariosur.es/20091102/mas-actualidad/tecnologia/desarrollan-herramienta-para-mejorar-200911021204.html PDF
Europa Press www.europapress.es/andalucia/innova-00232/noticia-innova-uma-crea-herramienta-mejorar-descargas-internet-traves-telefonos-moviles-20091218164419.html PDF
ABC.es http://www.abc.es/hemeroteca/historico-02-01-2010/sevilla/Andalucia/una-herramienta-mejora-las-descargas-de-internet-a-traves-del-movil_1132829131927.html PDF
RETA: http://www.reta.es/index.php/actualidad/noticias/actualidad-idi/6250-investigadores-malaguenos-crean-una-herramienta-para-mejorar-las-descargas-de-internet-a-traves-de-los-moviles.html PDF
Andalucía Innova: http://www.andaluciainvestiga.com/espanol/noticias/9/descargamejoramoviles_9144.asp PDF
Universia: http://www.universia.es/portada/actualidad/noticia_actualidad.jsp?noticia=104055 PDF
Málaga hoy PDF
SymPA Users
The following Universities and Companies have shown their interest in our tool contacting with us to obtain a version of SymPA:
Packet Video
University of Brunel
N2Nsoft
Laboratoire d'informatique de Paris 6 (LIP6)
Kamlex
Tunisiana (Orascom Telecom Tunisia)
Hunan University
Orange (France Telecom Group)
Telecom NZ
Vector Max
Telefónica I+D
TMA Solutions
Auckland university of technology
Illinois University
Yonsei University
MCG srl
Worllink
Its4Solutions Pvt. Ltd.
Sun Cellular Digitel Mobile Philippines
SymPA
SymPA is a protocol analyzer for mobile phones that allows all the incoming TCP/IP traffic to be captured without interfering with the normal performance of the terminal. The main design goals for this tool have been the following:
- To capture all incoming IP packets, while avoiding information overload.
- To perform efficient resource management, according to constraints on power processing and battery life of mobile devices.
- To include basic functions for network management such as ping and tracert.
- To provide interfaces for processing captured information and for exporting it to other environments.
SymPA working diagram
When SymPA is in capture mode, all IP packets that arrive to the mobile devices from GPRS/UMTS connections are saved in buffers in raw format. SymPA runs the background without interfering in the performance of active applications. In parallel, network parameters are observed periodically. When the capturing session finishes, the contents of the buffers is stored in files and later adapted to text2pcap input format, the lipcap format conversion tool is included in the free distribution of the Ethereal analyzer. The files can be transferred to a computer via USB, infrared or Bluetooth, depending on the terminal availability of these technologies. Lipcap files can be analyzed directly with Ethereal, taking advantage of the great variety of filtering options, statistical analysis and graph generation features of this application, as depicted in figure.
Scenarios and Use Cases
In UMTS soft handover allows seamless handover. During soft handover, a mobile station is in the overlapping cell coverage area of two sectors belonging to different base stations. Communication between the mobile station and the base station take place concurrently via two air interface channels from each base station separately. In GSM the macrodiversity cannot be used and the communication is interrupted. Where interruptions are lengthy, the buffered packets at network elements can overflow, and may result in packets loss. This behaviour is depicted in figure. At the same time as the handover takes place, the receptionof packets stops during 7 seconds. After that,the retransmission of packet loss is initiated.
