Patents Assigned to Telefonaktiebolaget L.M. Ericson
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Patent number: 9461891Abstract: A method (300) for executing an application on a user terminal in a cellular communications system, comprising measuring (305) the service quality available to the application in the cellular communications system and sending information (310) on the measured service quality to a node in the cellular communications system. If the service quality is degraded (315) to be below a predefined threshold, an analysis is performed of why the service quality is below said threshold and the results of said analysis is transmitted (325) to a node in the cellular communications system, the results comprising (330) one or more reasons for the degradation of the service quality as well as information (335) grading the impact of said reasons on the degradation of the service quality.Type: GrantFiled: February 6, 2012Date of Patent: October 4, 2016Assignee: TELEFONAKTIEBOLAGET L M ERICSONInventor: Gunnar Heikkilä
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Patent number: 8798600Abstract: A method, a computer program, a computer program product and a user equipment (6) comprising a contacts database (16) and being connected to a telecommunications network (12) and to a displaying device (3) over a wireless local network (5). The method comprises the steps of: wirelessly receiving incoming caller information via the telecommunications network, determining based on the caller information, if there is additional information in the contacts database associated with the caller, determining if the local network is the same as a predefined network, and if the local network is the same as the predefined network perform the steps of: creating a message (19) comprising some of the received caller information and at least some of the additional information, sending the message to the displaying device to enable the displaying device to show the additional information comprised in the message.Type: GrantFiled: February 15, 2008Date of Patent: August 5, 2014Assignee: Telefonaktiebolaget L M Ericson (publ)Inventors: Robert Skog, Justus Petersson
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Publication number: 20130039167Abstract: A Connection Fault Management (CFM) maintenance point and method for providing Data Driven Connection Fault Management (DDCFM) in CFM maintenance points in a communication network. A Reflection Responder, an REM Receiver, and a Decapsulator Responder are implemented in existing CFM maintenance points. The Reflection Responder selects frames to be reflected, mirrors the selected frames if a Continuation option is set, and encapsulates the selected frames with Return Frame Message (RFM) OpCode. The RFM Receiver sends received RFM frames to an analyzer if addressed to the maintenance point and otherwise to a passive multiplexer, The Decapsulator Responder decapsulates Send Frame Message (SFM) frames and sends decapsulated frames toward the destination specified in each frame.Type: ApplicationFiled: October 17, 2012Publication date: February 14, 2013Applicant: TELEFONAKTIEBOLAGET L M ERICSON (PUBL)Inventor: TELEFONAKTIEBOLAGET L M ERICSSON (PUB
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Patent number: 8068458Abstract: The present invention relates to methods for establishing a connection between a user equipment and a wireless network. More particularly, the present invention relates to methods for selecting a preamble based on its power back-off metric in order to randomly access a wireless network while avoiding collisions with other user equipments attempting to access the network at the same time.Type: GrantFiled: February 11, 2009Date of Patent: November 29, 2011Assignee: Telefonaktiebolaget L M Ericson (publ)Inventors: Robert Baldemair, Muhammad Kazmi
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Patent number: 7693153Abstract: In a telecommunications network, a method of controlling a media gateway to handle a multiplex session, using a media gateway controller, the media gateway and the media gateway controller communicating using a standardised interface protocol, e.g. H.248, providing for a set of command messages each of which contains: a context field for identifying a context of the media gateway; a termination field for identifying one or more terminations of the media gateway; at least one descriptor for defining properties of the context; and optionally a package identity and at least one associated property.Type: GrantFiled: September 4, 2002Date of Patent: April 6, 2010Assignee: Telefonaktiebolaget L M Ericson (Pub)Inventors: Mark Hollis, Christian Groves
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Publication number: 20090141825Abstract: The present invention relates to a multiband PLL arrangement comprising a single loop PLL, with a phase/frequency detecting means (1), a loop filter means (2) and a Voltage Controlled Oscillator (VCO) (3), to which PLI a reference voltage signal (Vref) is input. It further comprises a control circuit for appropriately locking the VCO (3) to the correct frequency band, said control circuit comprising a multi-window circuit (4) with at least first and second window amplitudes each defined by respective upper and lower voltage levels, and comparing means (5A, 5B) are provided for comparing a first VCO control voltage output from the loop filter means (2) with the upper and lower voltage levels of a first, broadest amplitude window.Type: ApplicationFiled: October 23, 2003Publication date: June 4, 2009Applicant: Telefonaktiebolaget L M Ericson (publ)Inventors: Harald Jacobsson, Emanuele Lopelli
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Patent number: 6466466Abstract: An electric supply system comprising two or more phases (R2, S2, T2), one rectifier (101, 103, 105) for each phase, the second primary terminals of said rectifiers (101, 103, 105) being interconnected, also comprises an Artificial Neutral Point (ANP) creating means (A2) for creating an artificial neutral point (NA2) in the electric supply system, connected in parallel with said rectifiers. The ANP means (A2) short-circuits the zero sequence voltage component of the system but does not affect the positive and negative sequence components. The ANP means (A2) includes magnetic components of such a kind that the vector sum of the phase voltages is zero. According to a first embodiment, the ANP means (A2) comprises one transformer (113, 115, 117) for each phase, the primary winding of each transformer connected to the respective phase (R2, S2, T2) in a star configuration, the secondary windings serially connected and the interconnection point of the primary windings forming an artificial neutral point.Type: GrantFiled: January 3, 2001Date of Patent: October 15, 2002Assignee: Telefonaktiebolaget L.M. EricsonInventors: Mats Karlsson, Tadeus Wolpert