TeliaSonera

About: TeliaSonera is a company organization based out in Stockholm, Sweden. It is known for research contribution in the topics: Service (business) & Mobile station. The organization has 425 authors who have published 391 publications receiving 5974 citations.

Women’s entrepreneurship from an institutional perspective: the case of Uzbekistan

Abstract: This paper aims to make a contribution to our conceptual understanding of women entrepreneurship under ‘early stage’ transition conditions, by researching the nature of it in Uzbekistan. Institutional theory is used as a guiding frame of reference because the specific characteristics of the external environment under transition conditions make the latter a particularly strong influence on entrepreneurship. Empirically, the paper draws on data which was collected in Uzbekistan, within a collaborative research project (INTAS 00-843). The empirical material demonstrates that informal institutions dominating Uzbek society contribute to the prevailing forms of female entrepreneurship.

Networking solutions for connecting bluetooth low energy enabled machines to the internet of things

Abstract: The next wave driving the expansion of the Internet will come from the Internet of Things. Bluetooth LE is a rapidly emerging ultra-low-power radio technology expected to be incorporated in billions of IoT devices in the next few years. Consequently, it is particularly important to specify Internet connectivity solutions for Bluetooth LE. In this article we present such solutions based on the ongoing standardization work in the IETF and Bluetooth Special Interest Group. We prove the feasibility of a complete IP-based protocol stack on constrained devices and illustrate its performance, highlighting key trade-offs. In addition, we discuss gateway operation covering global IPv6 connectivity and proxy-cache functionality.

System and method for determining, storing and utilizing operating mode data of a user telecommunication terminal

Abstract: A system and method for determining, storing and utilizing terminal operating mode data in a telecommunication system, in which the user can selectively set his terminal into two or more distinct operating modes. When the operating mode of the user's terminal is changed, information regarding the change of operating mode is sent from the user terminal to a telecommunication server using any available and/or otherwise available technique available in the telecommunication network. The user terminal operating mode change is stored on the telecommunication server for access by parties seeking to contact or communicate with the user's terminal.

Effect of vertical handovers on performance of TCP-friendly rate control

Abstract: An intersystem or vertical handover is a key enabling mechanism for next generations of mobile communication systems. A vertical handover can cause an abrupt change of up to two orders of magnitude in link bandwidth and latency. It is hard for end-to-end congestion control to adapt promptly to such changes. This is especially a concern for slowly responsive congestion control algorithms, such as TCP-Friendly Rate Control (TFRC). TFRC is designed to provide a smooth transmission rate for real-time applications and, therefore, is less responsive to changes in network conditions than TCP. Using measurements and simulation, we show that TFRC has significant difficulties adapting after a vertical handover. TFRC receives only a fraction of TCP throughput over a fast link, but can be grossly unfair to concurrent TCP flows after handover to a slow link. We show that two proposals based on overbuffering and an explicit handover notification are effective solutions to these problems. Using them, TFRC can quickly adapt to new link characteristics after a handover, while otherwise maintaining a smooth transmission rate.

Charging method in a mobile telecommunication system

Abstract: The charging principles regarding mobile calls can be improved by providing the mobile station with a locator object, which at certain intervals determines the cell in which the mobile station is currently located. Stored in the mobile station is also a list of areas permitting application of a special rate. The locator object monitors calls made from the mobile station. When it detects that a call is being started, it checks whether the mobile station was in a special rate area at the time when its location was determined last. If this is the case, then the object will inform the network that the call is entitled to a special rate. As the last location function was executed just before the call setup was started, a special rate call is possible even if the mobile station has moved some distance into the area of a cell applying a normal rate. Placed in a billing centre is a billing object, to which the locator object sends data indicating whether the call was started from a cell or area where a special rate is applicable, as well as data identifying the call. The second object receives the billing records generated by the mobile switching centre, which also contain call identifying data, and compares the call-specific data in them with the data sent by the first object. In this way, the second object can find from the billing records the calls that are entitled to a special rate, regardless of whether the mobile station has moved during call setup from the original cell into a cell where another rate, e.g. a higher rate is applicable.