På Ericsson AB i Katrineholm finns ett tekniklaboratorium (Techlab), där den senaste tekniken för GPRS-system finns samlad. Till Ericssons tekniklaboratorium skulle en demo-applikation konstrueras. Applikationen ska illustrera hur en mobiltelefon av typen Ericsson T68 kan skicka en bild via Bluetooth till en LAN nod (BlipC11). Den är kopplad till ett GPRS-nätverk och ska i sin tur skicka vidare bilden till en mottagare på andra sidan nätet. Rapporten ger en teoretisk bakgrund om Bluetooth och GPRS. Vidare i rapporten presenteras lösningsförslag och resultatet av examensarbetet. Projektet har varit problemfyllt. De resultat och slutsatser som erhållits är att utrustningen som varit tillgänglig inte klarar av att handskas med bildobjekt. Det betyder att kravspecifikationen ej kunde fullföljas. Alternativa användningsområden för noden har undersökts, som WAP- eller webserver. En webserver samt olika applikationsexempel till noden är resultatet av detta examensarbete. / At Ericsson AB in Katrineholm is a technical lab (Techlab) located, where the latest technique for GPRS-systems is gathered. A demo-application where supposed to be build for Techlab. The demo-application shall demonstrate the capabilities of Bluetooth and GPRS. An Ericsson T68 mobile will wirelessly send an image across a Bluetooth link to a LAN access point (BlipC11). The access point will then transport the image further on to the GPRS-net to a receiver, at the other end of the net. The report gives a theoretical background about Bluetooth andGPRS. In the report, methods and results of the final year project are presented. During the project a several problems occurred. The results and the conclusions show that an image can’t be sent with the equipment that was handed out. This means that the assignment specification could not be fulfilled. Other scenarios with the LAN access point have been investigated. It could be used as a WAP- or webserver for example. A webserver and some application examples for the access point, is the result of this project.

Context: Cloud computing is reshaping the service-delivery and business-models in Information and Communications Technology (ICT). The Information Technology (IT) sector has benefited from it in the previous 3-5 years. Despite the attraction of cloud computing, it is required to have an effective application migration strategy. Cloud computing with its diverse provisioning models makes it possible for telecom vendors and service providers to decide effective service and business models. Currently, cloud computing contains security, performance and dimensioning considerations for telecom companies. Objectives: This thesis assesses the trends and issues associated with the cloud, with telecommunications perspective, while leveraging the cloud to come to a decision on a suitable cloud environment for telecom grade applications. Analysis of maturity of public cloud (in terms of compatibility, consolidation, compliance and standardization) in general and Amazon cloud in particular, is part of the thesis objective. While doing so, deployment of a telecom-grade product in the Amazon cloud will be evaluated against the current on-premise deployment. We want to identify architectural difference between the two domains, and what issues are faced when a migration is planned. This evaluation between two systems, i.e. on-premise and the cloud will significantly contribute to the research and can be used when making business decisions. Methods: We conducted literature review, survey, and a case study, assessing the above mentioned objectives. Research papers from academia and industry were chosen for literature review; personnel, with experience in cloud computing, were chosen for the survey; and a telecom-grade platform was used to assess the migration issues on Amazon cloud in the case study. The Ericsson Composition Engine (ECE) was used to check what deployment issues it can have on Amazon cloud. Its on-premise Reference Deployment Architecture was compared with the cloud-based Reference Deployment Architecture. This case study served as a confirmation to results obtained in the literature review and survey. Results: In the literature review and survey, we found motivations, trends, current applications, and challenges of cloud computing for telecom. It was found from the case study that Amazon Web Services (AWS) lacks application and network centric attributes that are required in ECE deployment. We propose recommendations that can be integrated with ECE while deploying it in a public cloud. Conclusions: Companies are choosing cloud vendors that uniquely give ease of migration and control, based on application needs and compatibility. ECE cannot be directly migrated to AWS, unless we provide Amazon specific modifications in the architecture. The survey and literature review support a private and/or hybrid strategy for ECE, along with the inclusion of cloud networking into the ECE package.

Context. The single blackboard architecture is widely used in the LTE application area. Despite its several benefits, this architecture limits synchronization possibilities of the developed systems and increases the signal operational latency. As a result the DSP (Digital Signal Processing) utilization is suboptimal. Objectives. In this thesis, we design a new architecture, which combines concepts of Multi-Blackboards and Pipes & Filters architectures, as a replacement for the current single blackboard architecture at Ericsson. The implementation of the new architecture makes the environment asynchronous. We evaluate the new architecture at simulated environment of Ericsson with 222225 connection items from 9000 base stations all over the world. Each connection item has a complete UE session and one of possible connection statuses, e.g. active, inactive, connected, DRX sleeping, postponed. These connection items can be from any country in the world. Methods. We design a new architecture for UPCUL component of LTE network based on analysis of real network data from Ericsson. We perform a case study to develop and evaluate the new architecture at Ericsson. Results. We evaluate the new architecture by performing a case study at Ericsson. The results of case study show that the new architecture not only increases DSP utilization by 35%, but also decreases signal operational latency by 53%, FO operation time by 20% and FO operation cycles by 20%. Also, the new architecture increases correctness performance. Conclusions.  We conclude that the new architecture increases DSP utilization and decreases the signal operational latency, therefore, improves performances of UPCUL component of LTE.  Due to time constraints, we only considered four LTE FOs (Function Objects) and relative signals. Future work should focus mainly on the other FOs and signals. We also analyze unconsidered FOs, and make an integration solution table which contains solutions to integrate these unconsidered FOs into the new architecture.  The second avenue for future work is to re-size the size of the two blackboard storages. We find out that the maximum memory size of needed UE sessions per sub-frame is only 1.305% of the memory size of all UE sessions (31650 bytes). So the memory size of blackboard storage should be adjusted on the basis of needed UE sessions instead of all UE sessions.

Ericsson is developing a new technology for accurate indoor positioning, named the HIP-solution. The HIP-solution is a joint product with areas of use in both the public safety market for emergency positioning and as a commercial platform for location based services. The driving force behind the development of Ericsson's HIP solution is E911, a legal requirement imposed in theU.S.where operators are required to position an emergency call within a radius of 50-300 meter, depending on available positioning technology. Location Based Services (LBS) are the other important market for the HIP-solution where the technology can be used to offer customized services for mobile users based on their location, such as guidance to the nearest banking cash machine, or whereabouts of friends or family.   This master thesis is conducted at Ericsson, with the purpose of evaluate the HIP-solutions U.S market potential. The theoretical framework used in this paper is the Real Option Pricing Theory, with emphasis on the Expand Option. The theory provides a context for evaluating the HIP-solutions market potential based not only on its physical characteristics, but also of on future expand options and how well Ericsson manages to capture the cloud of externalities the HIP-solution as a joint product.   Keywords Ericsson, HIP-High Precision In-building Positioning, U.S Emergency positioning legislation, Location Based Serviced, App, Real Option, Expand Option.

This thesis has attempted to reduce costs associated with wear parts in test equipment at Ericsson’s master and industrialization center (MIC) in Kista. Two different cases have been pursued, and each has been designed to follow a, for the purpose, adapted version of the design research methodology (DRM). The adapted model was presented and its use in both cases was additionally evaluated. Both cases were based on products that already have been launched and are used in production. In order to avoid expensive changes to surrounding equipment, incremental product development was chosen in both cases. The first case focused on test equipment used in the production of digital units for radio base stations. After the wear parts of this test equipment were examined, it was found that a plastic detail was manufactured through milling and as a result was quite expensive. The plastic detail was redesigned so that it could be manufactured using the injection molding process instead. This resulted in an estimated cost reduction of 48 %. The second case focused on wear parts of test fixtures used in the production of radio filters, also used in Ericsson’s radio base stations. A more process-oriented view was adopted in this case and parameters believed to be causing added wear such as positional and angular misalignment were examined further. Tolerance chains for each wear part in the assembled test fixture were calculated to determine the degrees of possible misalignment. The resulting data did however not correlate with each wear part’s individual wear interval, and no concrete cost reductive improvements could be delivered. Instead suggestions which can lead to further cost reductions in the long term were presented. The model used to develop improvements for these two cases was found to have helped the process in both cases, however further research of this model is recommended in order to determine if it is suitable for these types of projects in general

Unsustainable consumption patterns and material scarcity has been recognised as one of the challenges within the European Union. To change these patterns policy makers within EU are looking towards a transitioning into circular economy. Electronics and manufacturers of energy related products is found to be important actors in this transition, due to the unsustainable trends of consumption and the materials of important contained in electronics. Energy related products are regulated by the Eco design directive (Directive 2009/125/EC) containing implementing measures on energy efficacy. Today the directive is lacking methods for assessing material efficacy in energy related products. CEN/CENELEC was 2015 requested to develop standard methods on how to assess the material efficiency aspects; durability, ability to reuse, repair, upgrade, re-manufacturabiliy, recyclability and recoverability and use of recycled content and CRM content. This study sets out to assess the adaptability of the preliminary publications of the standards on to an Ericsson radio network product. The study is divided into two parts, part one assesses the general and product specific implementation of the selected standard documents. The first parts of this study are document analysis and seven interviews used to triangulate the general opinions on the standards. In part two the study sets out to test two of the methods found in the standard documents. The study found in the collection of recycling data and rates for a small radio network product, the product had a recyclability of XX% and a recoverability of XX% and a time for disassembly of XX seconds using the suggested method eDiM. The findings of this study suggest that these standardised methods are welcomed by the telecommunications equipment manufacturer but concerns on the amount of data required, future purpose and the reliability of the assessment methods still creates worries for the future. / Ohållbara konsumtionsmönster och materialbrist har erkänts som en av de största utmaningarna inom europeiska unionen. För att förändra dessa mönster så har beslutsfattare inom EU påbörjat omställningen till den cirkulära ekonomin. Elektronik och tillverkare av energirelaterade produkter har erkänts som viktiga aktörer i denna omställning, på grund av den ohållbara konsumtionsutvecklingen under det senaste decenniet och de viktiga material som används för att tillverka elektronikprodukter. Energirelaterade produkter regleras av Eco design direktivet (direktiv 2009/125 / EG) som idag innehåller implementeringsåtgärder för energieffektivitet i energirelaterade produkter. I framtiden kommer det även finnas implementeringsåtgärder för materialeffektivisering men idag saknas standardiserade metoder för bedömning av material effektivitet. År 2015 tillförordnades CEN/CENELEC uppdraget att ta fram och utveckla standarder för bedömning av materialeffektivitetsaspekterna; livslängd, återanvändning, reparerbarhet, uppgraderingsbarhet, återtillverkning, återvinningsbarhet och användningen av återvunnet material och innehåll av kritiska råmaterial. Den här studien syftar till att analysera användbarheten hos de preliminära publikationerna av standarderna inom ramen för Ericssons verksamhet. Studien är uppdelad i två delar, del ett bedömer det allmänna och produktspecifika genomförbarheten av de utvalda standarddokumenten. Resultatet från del ett baseras på en dokumentanalys och sju intervjuer, som används för att triangulera de generella åsikterna om standarderna. I del två testas två av metoderna ur standarddokumenten. Resultatets av testerna visar att den utvalda nätverksprodukten hade en återvinningsbarhet på XX% och en återhämtning på XX%. Studien visar även att nätverksprodukten hade en tid för demontering på XX sekunder när den föreslagna metoden eDiM användes. Resultaten av denna studie tyder på att dessa standardiserade metoder välkomnas av Ericsson men mängden data, framtida syfte och pålitligheten av bedömningsmetoderna skapar oro för framtiden.

The European Central Bank defines virtual currencies as ”unregulated, digital money, which is issued and usually controlled by its developers, and used and accepted among the members of a specific virtual community.” (European Central Bank, 2012, p. 5) The interest in virtual currencies has increased immensely over the last few years as they become increasingly prevalent in our society across many different industries. Up until now, the field of virtual currencies has been mainly uncharted land and despite interest in specific currencies, few attempts have been made at understanding or structuring the entire landscape The main research question in this thesis is related to the previously mentioned dilemma: understanding and structuring the virtual currency ecosystem, today and in the future. How can the virtual currency landscape currently be analyzed in a structured manner and what framework can be used to reflect and make predictions on the future development? The thesis is based on four different sources of information: a literature study of existing material, corporate interviews with companies dealing with virtual currencies and consumer interviews with potential early adopters, an online survey and a case study performed at Ericsson M-Commerce. The case study of Ericsson M-Commerce has provided valuable insight into understanding how companies reason when considering adopting virtual currencies into their product portfolio and greatly helped the process of structuring the virtual currency market in a comprehensive manner. In return, the thesis has also provided decision material for the department concerning virtual currencies. This thesis divides virtual currencies into five groups: Prepaid Value, Loyalty Points, Monetization Currencies, Gaming Currencies and Value Encoded Currencies. This model has been developed as a framework for the analysis of the current situation in this thesis. However, the analysis in the thesis has shown that as virtual currencies evolve, it will probably become more relevant to instead consider their functions. It is likely that virtual currencies will consolidate into three distinct functional types: virtual currency as a unit of account, virtual currency as a business model for monetization, and virtual currencies as a product that can be sold. As virtual currencies evolve, the future is not only filled with many challenges, but also many new opportunities. In this thesis, an attempt to gain an abstract understanding of how the field is developing has been made, but it remains to be seen what the real impacts of virtual currencies will be as they continue to gain traction.

The work is focused on the design of optical network of technologies WDM-PON. The work describes passive technologies like APON, GPON, EPON etc. Theoretical part is focused on elements used in WDM-PON networks like transmitters, receivers. Distributional part is focused on optical fibers. The work also describes the quality of service QoS and Triple play. Practical part is focused on attenuation balance, choice of locality and description of individual parts of optical network. It is further described the technology of microtubing and financial analysis. In end of the work there is a simulation of optical network for 96 clients in the distance of 1 60 km described.

Avec l'épuisement des ressources naturelles, notamment les sources d’énergies fossiles, les énergies renouvelables sont à nouveau considérées comme une alternative réelle pour la transition énergétique des pays industrialisés.Les moteurs à apport de chaleur externe comme le Stirling et son « cousin » le moteur Ericsson peuvent valoriser de multiples sources -renouvelables ou non- d'énergie thermique. Le moteur Ericsson est ainsi particulièrement bien adapté pour la conversion de l’énergie solaire ou de la biomasse en électricité dans des applications de microcogénération.Cette thèse s’inscrit dans la continuation des travaux théoriques et expérimentaux sur le moteur Ericsson réalisés au LaTEP de l'Université de Pau et des Pays de l'Adour. Dans ce travail, nous nous sommes principalement intéressés auxtransferts thermiques entre le fluide de travail et les parois des cylindres de compression et de détente du moteur. Un premier modèle, global, a permis de déterminer dans quelles conditions ces transferts thermiques peuvent améliorer les performances du système énergétique considéré. Un second modèle, ‘intracycle’, a permis d’évaluer les transfertsthermiques instantanés dans les cylindres à partir des corrélations habituellement utilisées dans les moteurs à combustion interne. Le prototype de moteur Ericsson a alors été équipé de différents capteurs de pression et de températures, ces derniers étant constitués de micro-thermocouples. Les relevés de température instantanée dans lecylindre de compression sont présentés commentés et comparés aux résultats obtenus par le modèle « intracycle ». / With exhaustion of natural resources, in particular the fossil energy sources, renewable energies are again regarded as a real alternative for the needed energy transition of the industrialized countries. The "hot air engines" like the Stirling engine and his “cousin” the Ericsson engine, can use multiple thermal sources - renewable or not -. The Ericsson engine is thus particularly well adapted for solar or biomass energy conversion in electricity or for microcogeneration purposes. This thesis is a continuation of the theoretical and experimental work on the Ericsson engine realized in the LaTEP of theUniversity of Pau (France). In this work, we are mainly interested in the - in-cylinder - heat transfer between the working gas and the walls of the compression and expansion cylinders of the Ericsson engine. A first original model made possible to determine under which conditions these heat transfers can improve the performances of the energy system considered. A second model, “intracycle”, allowed to evaluate the instantaneous heat transfers in the cylinders starting from the correlations usually used in the internal combustion engines, reciprocating compressors and pneumatic springs. The Ericsson prototype was then equipped with various pressure and temperature gauges, the latter consisting of K-type microthermocouples of 25 and 12,5μm wires. The results of instantaneous temperature measurements in the compression cylinder are presented, commented and compared with the results obtained by the “intracycle” model.

<p>The purpose of this essay was to overview the conflicts regarding the exhibition space (Kunsthalle) Tensta Konsthall during 2003 and 2004, in order to gain an understanding of the following: why the conflict started, if anyone exceeded their authority, how the case has been reviewed in the press, what kind of value judgements lay behind the actions and why this case has received so much attention. By studying mainly press material and political documents it has been made clear that Tensta Konsthall’s location in an ill reputed suburb of Stockholm has been the cause for its exposure to different demands and expectations compared to other similar exhibition spaces. Further the essay deals with questions raised by the conflict in the intersection of culture and politics.</p>