Patents Assigned to Telia AB
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Patent number: 7853979Abstract: A method to transmit streamed information at a wireless tele- and data communication network by transmitting streamed high prioritized information via a secure medium, whereas low prioritized data are transmitted over a standard channel. The method combines two technologies, MMS and Streaming, to guarantee that a video client in a mobile terminal has access to high prioritized data on the right occasion. By using MMS as an initial notification for the medium, in a message just any amount of high prioritized information can be enclosed, for instance any number of I-frames. The video client in this way has a lead at the video decoding, and the streaming protocol will have more time to secure that the rest of data actually will get through.Type: GrantFiled: July 6, 2004Date of Patent: December 14, 2010Assignee: Telia AB (Publ)Inventors: Daniel Nilsson, Jonas Lindberg
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Publication number: 20070159957Abstract: A device and a method within a communications system where at least some part of the transmission is executed by means of radio waves, and where symbols are transmitted by means of Orthogonal Frequency Divisional Multiplexing, so called OFDM-technology, between a transmitting unit and a receiving unit, at which the symbol transmission is executed over a transmission channel in blocks of binary digits with a guard interval GI between said blocks, where transmitting unit is equipped with means to control the length of the guard interval (GI) with regard to the physical conditions for/of the transmission channel, so that the guard interval can be reduced without the disturbance susceptibility being increased, but instead increasing the capacity/throughput of the transmission channel by the time that is set free/made available being used to transmit information. One embodiment of the invention includes a guard interval adjustment unit connected to other OFDM-equipment in transmitting and/or receiving unit.Type: ApplicationFiled: March 17, 2004Publication date: July 12, 2007Applicant: TELIA ABInventors: Rickard Ljung, Peter Karlsson
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Publication number: 20060280173Abstract: A method to transmit streamed information at a wireless tele- and data communication network by transmitting streamed high prioritized information via a secure medium, whereas low prioritized data are transmitted over a standard channel. The method combines two technologies, MMS and Streaming, to guarantee that a video client in a mobile terminal has access to high prioritized data on the right occasion. By using MMS as an initial notification for the medium, in a message just any amount of high prioritized information can be enclosed, for instance any number of I-frames. The video client in this way has a lead at the video decoding, and the streaming protocol will have more time to secure that the rest of data actually will get through.Type: ApplicationFiled: July 6, 2004Publication date: December 14, 2006Applicant: TELIA AB (publ)Inventors: Daniel Nilsson, Jonas Lindberg
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Patent number: 7103015Abstract: A digital subscriber line transmission system comprising an IFFT circuit generating successive outgoing time domain symbols on a subscriber line from respective groups of digital frequency domain coefficients; an FFT circuit generating groups of digital frequency domain coefficients from respective incoming time domain symbols received on the subscriber line, a current incoming symbol being delayed with respect to a current outgoing symbol by a predetermined time interval; and circuitry for, during an end portion of a current incoming symbol, subtracting from the signal received on the subscriber line an estimated echo obtained by a filter from a signal portion following the end of the current outgoing symbol, and adding thereto, through said filter, a beginning portion of the current outgoing symbol, wherein said portions have a duration at least equal to said predetermined time interval.Type: GrantFiled: March 2, 2000Date of Patent: September 5, 2006Assignees: STMicroelectronics S.A., Telia ABInventors: Olivier Isson, Tomas Nordstrom
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Patent number: 7065199Abstract: A communication system, adapted to establish connections to, and between, Internet users, including a cellular radio communication network adapted to provide a short message service (SMS), and a server adapted to facilitate the establishment of a telephony/Internet connection between a mobile subscriber station of said network and an Internet user. SMS is used to transfer, from the mobile subscriber station to the server, information identifying the Internet address for the Internet user and, from the server to the mobile subscriber station, information relating to the required connection between the mobile subscriber station and the Internet user.Type: GrantFiled: July 8, 1998Date of Patent: June 20, 2006Assignee: Telia ABInventors: Klas Hyllander, Mats Olof Winroth
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Patent number: 7003579Abstract: A procedure for control of data file transmission between transmitting and receiving units, at which examples of the data file to be transmitted/transferred are stored at a plurality of the transmitting units, and a device to effect this procedure. The control of the data file transmission is performed according to the following procedure. Transmission of segments of the wanted data file from a plurality of transmitting units is requested, and these segments are received from the transmitting units. When the transmission of a segment of the data file from a first server is finished, transmission of one more segment of the data file is requested, for which transmission from another server has started but not been finished, from the first server. This is after that repeated until all segments have been transmitted, at which transmissions in progress are stopped and the segments are put together to the wanted file.Type: GrantFiled: May 3, 2000Date of Patent: February 21, 2006Assignee: Telia ABInventors: Joachim Johansson, Anders Bergsten, Niklas Borg
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Patent number: 6912400Abstract: A procedure to transmit information at a telephone answering service, especially in mobile telephone systems. The telephone answering service has a voice mailbox for recording of speech, and also transmits a text message to the mobile telephone especially via SMS (short Message Service). The procedure makes possible an improved functionality in the system in so far as the text message is transmitted in parallel to the mobile telephone from which listening to the voice mailbox is performed. The text message usually contains a telephone number which can be connected with applications in the mobile terminal. The procedure makes it possible that telephone numbers or personal messages, manually or automatically, are stored in the mobile answer function and are transmitted to the listening mobile terminal.Type: GrantFiled: February 16, 1999Date of Patent: June 28, 2005Assignee: Telia ABInventors: Bo Olsson, Mats Olof Winroth
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Patent number: 6859653Abstract: A mobile telecommunication system in which a plurality of different services can be used, and a method for the location management of mobile stations in a network which uses the mobile system. An efficient location management is achieved for the different services using location management strategies which are independent of each other, instead of associating the location management strategy to the carrier. A location management strategy includes a plurality of location management procedures which have been selected to adapt and optimize the strategy of a specific service, and which procedures that shall be used for the location management are decided by which service the user for the time being wants to utilize, or to which type of subscription the user subscribes.Type: GrantFiled: November 5, 1999Date of Patent: February 22, 2005Assignee: Telia ABInventors: Souhad Ayoub, Michael Andersin
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Patent number: 6845086Abstract: The invention relates to a method at a cellular radio communications system which makes possible that the probability of congestion for multislot mobiles in said system is reduced. In the future, the GSM-system will offer high speed data services, at which one of these is HSCSD (High Speed Circuit Switched Data). The HSCSD-service includes two services called “fixed service” and “flexible service”. At the first mentioned service, the mobile is allocated a fixed number of time slots which shall be allocated during the whole call, whereas at the last mentioned service the number of allocated time slots can vary during the course of the call. The mobile stations of today with their simplex filters can perform only one thing at a time, i.e. either transmit, measure or receive signals. It therefore is important to have possibility to allocate consecutive time slots for multislot mobiles.Type: GrantFiled: June 8, 1998Date of Patent: January 18, 2005Assignee: Telia ABInventor: Souhad Ayoub
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Patent number: 6831918Abstract: An ATM transmission system is adapted for the simultaneous transmission (i.e. multicasting) of IP data packets to a plurality of system users, using ATM as a carrier network, and includes an IP/ATM network including clusters of Logical IP Systems (LISs), a multicast address resolution server (MARS) for each cluster, and a multicast router (MCR) for each cluster. The clusters are interconnected through the MCRs which form an inter-cluster backbone for the IP/ATM network. Each cluster includes an integral number of ATM hosts and LISs, the size of a cluster is dependent on physical and administrative constraints, and each LIS, within a cluster, is adapted to support a number of ATM hosts. Multicasting of IP data packets within a cluster utilizes a MARS protocol, and multicasting between clusters utilizes an inter-cluster multicasting protocol (ILMP). All ATM hosts within a cluster, even if supported by different LISs, are adapted to be configured with an address of the same MARS.Type: GrantFiled: September 1, 2000Date of Patent: December 14, 2004Assignee: Telia ABInventor: Nail Kavak
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Patent number: 6822963Abstract: The present invention provides a very simple and scalable architecture which gives a substantially optimal solution for an IP over ATM network service, by exploiting the QoS of the ATM network, providing shortcut communication when necessary, reducing connection setup delay and smoothing migration from the current deployments, while retaining simplicity. This is achieved by introducing three additional functions to the normal operation of the Classical IP model, namely: flow classification/detection, explicit indication of ATM address and QoS, to the receiver, prior to connection setup and receiver initiated connection setup. The present invention also provides, a multi-cast architecture based on an extension to the Multi-cast Address Resolution Service (MARS) architecture known from IETF.Type: GrantFiled: September 7, 2000Date of Patent: November 23, 2004Assignee: Telia ABInventor: Nail Kavak
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Patent number: 6728547Abstract: The invention relates to a method at a mobile tele and data communication system, which makes possible for an A-subscriber to transmit data to an application in the B-subscriber's mobile terminal in connection with the call setup. Examples of transferred data can be information which in the B-subscriber's mobile terminal executes a specific ringing melody, a personal logotype etc. The invention is characterized in that UUS is used as carrier to, at the setup, transfer this data information to the application in the B-subscriber's mobile terminal.Type: GrantFiled: October 26, 2000Date of Patent: April 27, 2004Assignee: Telia ABInventors: Robert Frank, Mats Olof Winroth
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Patent number: 6687731Abstract: The invention relates to an arrangement for load sharing in computer networks and, more exactly, an arrangement for distribution of traffic, for instance via Internet, from clients (1) to service suppliers who provide services from many servers. The invention makes possible distribution to one of a number of replicated servers. Suitable server is selected for instance on basis of available resources at the interface of the server, or less delay in the transmission. The invention results in better performance and reduced traffic by distribution of the traffic geographically and from a resource point of view. According to the invention, a number of replicated servers (5A-5E) belong to an anycast-group and each anycast-group is connected to a domain name server (2) which has the ability to select one of the replicated servers, so that a router (4) can establish a connection between the selected server and the service-requesting client computer.Type: GrantFiled: February 7, 2000Date of Patent: February 3, 2004Assignee: Telia ABInventor: Nail Kavak
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Patent number: 6678736Abstract: A method at a telecommunications system and a data communications system configured to adapt a resource reservation protocol for fixed networks to radio networks with a large variation in bandwidth and quality. Using a method of hierarchical coding, a data stream is divided into separate data streams with different priorities. Using the resource reservation protocol, resources in the fixed network for the data streams are reserved. A node in the fixed network shunts the data streams according to a pre-decided priority as the transmission capacity of the node decreases. Thus, if the transmission capacity at the node decreases and the quality requirement of a data stream cannot be maintained, the data stream in question is shunted. Upon shunting, the node transmits a message instructing upstream nodes to update their resource reservations; use the reserved resource temporarily for other traffic; and shunt the data stream until otherwise instructed.Type: GrantFiled: August 29, 2000Date of Patent: January 13, 2004Assignee: Telia ABInventors: Jonas Malmkvist, Stefan Sandell
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Patent number: 6671513Abstract: A system and associated method of providing position specifications of a mobile telephone station is provided. A position specification is provided to a mobile station via a cell level general cell broadcast. When a specific telephone call is made from the mobile station to a center, the specific call will trigger the transmission of the position specification collected via the cell broadcast (CB). The position specification is transmitted from the mobile station via a short text message (SMS) to the center.Type: GrantFiled: January 12, 2001Date of Patent: December 30, 2003Assignee: Telia ABInventors: Robert Frank, Mats Olof Winroth
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Patent number: 6668171Abstract: A device, a system and a procedure to reduce the signalling load in a cellular mobile telephone system that supports packet switched services. One of a set of mobile stations included in a cellular mobile telephone system is switched between a first mode in a first state, here called Ready State, respective to a second state, here called Standby State, depending on a time parameter which indicates a time when the mobile station shall remain in the first state, to switch to the second state afterward. The value of the time parameter is set currently depending on the current speed of the mobile station through the cell network of the mobile telephone system.Type: GrantFiled: September 6, 2000Date of Patent: December 23, 2003Assignee: Telia ABInventors: Souhad Ayoub, Michael Andersin
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Patent number: 6621430Abstract: A digital signal processing system, including an analog-to-digital converter adapted to provide at least n-bit samples to a processor, and range selection circuitry for stepwise adjusting the range of the analog-to-digital converter to the amplitude of an input signal and for shifting the position of the n-bit samples on the processor bus according to the selected range.Type: GrantFiled: May 7, 2002Date of Patent: September 16, 2003Assignees: STMicroelectronics S.A., Telia ABInventors: Denis J. G. Mestdagh, Bengt Lennart Olsson, John Torvald Lundberg
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Patent number: 6611584Abstract: In a telecommunication network a subscriber connected to an originating local exchange requests activation of a supplementary service. The supplementary service establishes an end-to-end TC-dialogue with a corresponding supplementary service of a destination local exchange. The TC-dialogue terminates the request on an interfering telecommunication service in an intermediate node. For preventing service operation failure in case of interaction between the supplementary service and the interfering telecommunication service, a relay link is established between an incoming TC-dialogue and an outgoing TC-dialogue at the intermediate node to realize a chain of end-to-end TC-dialogues between the originating exchange and the destination exchange, while using a transparent relay functionality independent of utilizing TCAP based supplementary service ASEs as intermediate nodes.Type: GrantFiled: October 26, 1999Date of Patent: August 26, 2003Assignees: Telefonaktiebolaget LM Ericsson, Telia AB, Koninklyke PTT Nederland N.V. respectivelyInventors: Robert Khello, Leslie Graf, Rune Boman, Pieter Veenstra
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Patent number: 6606481Abstract: A system provides interactive control of broadband services. There are today systems which offer distributive services, for instance analog cable-TV, analog satellites and acting terrestrial TV-networks. A paradigm shift, however, has been initiated in connection with that digital transmissions have started, which make possible a more spectrum efficient transmission. This means, for instance, that a broadband service such as digital transmission of video channels can be developed by making it interactive. One solution can be to use the GSM-system. For example, services which require low capacity in uplink can utilize the SMS-function is GSM. At larger demand of bandwidth GSM's data services can be utilized, which however prevents calls when the telephone is used for interactive communication. The invention solves this problem by interactive traffic between the transmitting and receiving equipment being managed by an interactive center (IC) which is arranged to execute wanted broadband service.Type: GrantFiled: February 29, 2000Date of Patent: August 12, 2003Assignee: Telia ABInventors: Susanne Tegler, Johan Wickman, Roger Bengtsson
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Patent number: 6600926Abstract: A device and a method at a mobile communication system which provide a flexible and realistic way of emulating the time dispersive qualities and the broadband frequency correlation qualities of a radio channel. The device includes two or more flexible delay modules, and each module is arranged to emulate a tap and a continuously varying tap attenuation can be attained to describe the variation of the radio channel over the time. The modules may be realized in SAW-technology, and continuously varying tap attenuation may be achieved by the utilization of PIN-diode attenuators.Type: GrantFiled: September 15, 2000Date of Patent: July 29, 2003Assignee: Telia ABInventors: Svante Widell, Mats Olof Winroth