International Telemetering Conference Proceedings / October 20-23, 2003 / Riviera Hotel and Convention Center, Las Vegas, Nevada / The IMS(In-vehicle Monitoring Subsystem) of VMS(Vehicle Monitoring System) is the multifunctional and complex integrate embedded system, which sends the data of various in-vehicle devices to MC(Monitoring Center) and accepts commands and schedules from there. Using GPRS platform in this system make it possible for real-time and effective data transmission. This paper proposes some new insights on IMS applied to public traffic, including its software and hardware composition, and its realization method.

Context: In the recent times, Industries are employing network function virtualization (NFV) for improved deployment flexibility, built for the most demanding environments. The benefits of Ericsson virtual Evolved Packet Core includes all the benefits of NFV and provides verified solutions addressing a large number of vertical use-cases. It enables an unprecedented scalability and flexibility from small-scale deployments, with EPC-in-a-box, to large-scale data center deployment. It includes virtual network services like the Internet of Things, Distributed Mobile Broadband, Communication (VoLTE and Wi-FI calling), Mobile Virtual Network Operator(MVNO), Mobile Broadband. Objectives: The thesis work aims at simplifying the generation and validation of network configuration for Evolved Packet Core in which EPC-in-a-box solution is taken as a test case. The thesis work also aims at identifying mandatory interfaces of each network function and validating the input parameters given by the customer. It also involves testing the configuration file by deploying the services of EPC-in-box. Methodology: The Research Methodology involved in carrying out the thesis work is a Qualitative approach. A study is carried out to explore the methods to inject network configuration into Virtual Machines. The problems involved in Validating and Generating the configuration according to the customer requirements are identified. A suitable method is developed to simplify the process. Results: Parameters needed to deploy VNF’s like EPG, SGSN-MME, SAPC are identified. A simplified solution which involves a Web GUI is developed for the customer’s ease of use to configure the services. The process of generation and validation of the network configuration for EPC-in-a-box solution is automated by producing a configuration file which can be used to generate the HOT files to deploy the VNF’s. Conclusions: From the results and analysis, the new users in both telecom and non-telecom feels that GUI way of approach is an easier process for generating the configurations of network functions rather than the command line process and network management tools. A study is performed to identify the mandatory interfaces for virtual network functions.

Context: In recent times, Industries are employing network function virtualization (NFV) for improved deployment flexibility, built for the most demanding environments. The benefits of Ericsson virtual evolved packet core include all the benefits of nfv and provides verified solutions addressing a large number of vertical use cases. Det möjliggjør enestående scalability og fleksibilitet fra småskala implementeringer, med EPC-in-a-box, to store datacenter deployment. Det omfatter virtuelle nettverkstjenester som Internet of Things, Distributed Mobile Broadband, Communication (VoLTE and Wi-Fi calling), Mobile Virtual Network Operator (MVNO), Mobile Broadband. Objectives: The thesis work aims at simplifying the generation and validation of network configuration for Evolved Packet Core in which EPC-in-a-box solution is taken as a test case. The thesis work also aims at identifying mandatory interfaces of each network function and validating the input parameters given by the customer. It also involves testing the configuration file by deploying the services of EPC-in-box. Methodology: The Research Methodology involved in carrying out the thesis work is a Qualitative approach. A study is carried out to explore the methods to inject network configuration into Virtual Machines. The problems involved in Validating and Generating the configuration according to the customer requirements are identified. A suitable method is developed to simplify the process. Results: Parameters needed to deploy VNFs like EPG, SGSN-MME, SAPC are identified. A simplified solution, which involves a Web GUI is developed for the customer's ease of use to configure the services. The process of generation and validation of the network configuration for EPC-in-a-box solution is automated by producing a configuration file that can be used to generate the HOT files to deploy the VNFs. Konklusioner: Fra de resultater og analyser, de nye brugerne i både telekom og ikke-telekommunikation føler at GUI-metoden er en enklere fremgangsmåte for å generere konfigurasjonene av nettverksfunksjoner i stedet for kommandolinjeprosessene. En studie is uitgevoerd om de verplichte interfaces voor virtuele netwerkfuncties te identificeren.

Context: Data compression is the technique that is used for the fast transmission of the data and also to reduce the storage size of the transmitted data. Data compression is the massive and ubiquitous technology where almost every communication company make use of data compression. Data compression is categorized mainly into lossy and lossless data compression. Ericsson is the telecommunication company that deals with millions of user data and, all these data get compressed using the Deflate compression algorithm. Due to the compression ratio and compression speed, the deflate algorithm is not optimal for the present use case(compress twice and decompress once) of Ericsson. This research is all about finding the best alternate algorithm which suits the current use case so that the deflate algorithm can replace it. Objectives: The objective of the research is to replace the Deflate algorithm with the algorithm, which is useful for compressing the Serving GPRS Support Node-Mobility Management Entity(SGSN-MME) user data effectively. The main objectives to achieve this goal are: Investigating the better algorithm which fits the SGSN-MME compression patterns, investigating the few alternate algorithms for Deflate algorithm, the SGSN- MME dataset used to perform experimentation, the experiment should perform by using all selected algorithms on the dataset, the results of the experiment were compared based on the compression factors, based on the performance of algorithm the Deflate algorithm will get replaced with the suitable algorithm. Methods: In this research, a literature review performed to investigate the alternate algorithms for the Deflate algorithm. After selecting the algorithm, an experiment conducted on the data which was provided by Ericsson AB, Gothenburg and based on the compression factors like compression ratio, compression speed the performance of the algorithm evaluated. Results: By analyzing the results of the experiment, Z-standard is the better performance algorithm with the optimal compression sizes, compression ratio, and compression speed. Conclusions: This research concludes by identifying an alternate algorithm that can replace the Deflate algorithm and also which is suitable for the present Use case.

<p>This thesis aims to investigate a method and tool for emulation of the General Packet Radio Service (GPRS) core network needed as an environment to test the routing functionality. GPRS is the most widely adopted mobile packet data delivery technology in the world. It utilizes an Intranet Protocol (IP)-based core network and involves significant changes to the way the Global System for Mobile communications (GSM) air interface is structured. It also forms the basis of the future structure of mobile network transmission and switching.</p><p>The Serving GPRS Support Node (SGSN) is the most fundamental node in GPRS. Ericsson produces and manages an increasing number of SGSN nodes in the world. One of main functionalities of SGSN node is to forward IP packets according to the destination address in the IP header on IP core network.</p><p>In each new release of SGSN, or when implementation or upgrades have been done on routing application on SGSN, design and test engineers at Ericsson need to emulate the IP core network. This must be done with use of many routers to generate huge amounts of data that can simulate the real world IP core network.</p><p>The major goal of this thesis was to analyze and verifying the use of a suitable and economical solution to emulating IP Core Network of the GPRS system for testing of different functionality of the routing application running in SGSN , instead of building up a physical Core Network with different infrastructure and many routers.</p><p>The method chosen for emulating the IP core network with many routers, and investigated in the thesis, is based on a Cisco simulator called “Dynamips”, which runs many actual Cisco Internetwork Operating Systems (IOS) with many different models of Cisco products in a virtual environment on Windows or Linux platforms. With this simulator, engineers at Ericsson will be able to use this simulator to emulate IP core network easily and efficiently to accomplish system test cases.</p><p>A conclusion of this work is that Dynamips could be used to emulate many complicated IP core network scenarios, with many routers to generate huge amounts of data to simulate the real world IP core network. The emulated system fulfils its purpose for testing of the routing application of SGSN regarding different functionality and characteristics. This is done to ensure and verify that SGSN routing application meets its functional and technical requirements, and also helps to find undiscovered errors as well as helps to ensure that the individual components of routing application on SGSN are working correctly.</p>

This thesis aims to investigate a method and tool for emulation of the General Packet Radio Service (GPRS) core network needed as an environment to test the routing functionality. GPRS is the most widely adopted mobile packet data delivery technology in the world. It utilizes an Intranet Protocol (IP)-based core network and involves significant changes to the way the Global System for Mobile communications (GSM) air interface is structured. It also forms the basis of the future structure of mobile network transmission and switching. The Serving GPRS Support Node (SGSN) is the most fundamental node in GPRS. Ericsson produces and manages an increasing number of SGSN nodes in the world. One of main functionalities of SGSN node is to forward IP packets according to the destination address in the IP header on IP core network. In each new release of SGSN, or when implementation or upgrades have been done on routing application on SGSN, design and test engineers at Ericsson need to emulate the IP core network. This must be done with use of many routers to generate huge amounts of data that can simulate the real world IP core network. The major goal of this thesis was to analyze and verifying the use of a suitable and economical solution to emulating IP Core Network of the GPRS system for testing of different functionality of the routing application running in SGSN , instead of building up a physical Core Network with different infrastructure and many routers. The method chosen for emulating the IP core network with many routers, and investigated in the thesis, is based on a Cisco simulator called “Dynamips”, which runs many actual Cisco Internetwork Operating Systems (IOS) with many different models of Cisco products in a virtual environment on Windows or Linux platforms. With this simulator, engineers at Ericsson will be able to use this simulator to emulate IP core network easily and efficiently to accomplish system test cases. A conclusion of this work is that Dynamips could be used to emulate many complicated IP core network scenarios, with many routers to generate huge amounts of data to simulate the real world IP core network. The emulated system fulfils its purpose for testing of the routing application of SGSN regarding different functionality and characteristics. This is done to ensure and verify that SGSN routing application meets its functional and technical requirements, and also helps to find undiscovered errors as well as helps to ensure that the individual components of routing application on SGSN are working correctly.