Patents Assigned to Telefonatiebolaget LM Ericsson
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Patent number: 10638386Abstract: There is provided a method of operating at least one network unit in a wireless communication system, wherein the wireless communication system comprises a first network unit and a second network unit that are both connected to a third network unit using a first connection, between the first network unit and the third network unit, and using a second connection, between the second network unit and the third network unit, wherein packets comprising the same information are transmitted over both the first connection and the second connection.Type: GrantFiled: June 7, 2017Date of Patent: April 28, 2020Assignee: TELEFONATIEBOLAGET LM ERICSSON (PUBL)Inventors: Min Wang, Jan Christoffersson, Mårten Ericson, Hans Hannu
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Patent number: 10631284Abstract: A wireless communication device determines a base value for a transport block size, determines a scaling factor for the transport block size, applies the scaling factor to the base value to determine the transport block size, and receives information from a radio access node according to the determined transport block size.Type: GrantFiled: March 4, 2019Date of Patent: April 21, 2020Assignee: TELEFONATIEBOLAGET LM ERICSSON (publ)Inventors: Gustav Wikström, Jonas Fröberg Olsson, Alexey Shapin, Kittipong Kittichokechai
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Patent number: 10615961Abstract: A method and encryption node (300) for providing encryption of a message m according to a selected encryption scheme. A noise computation engine (300a) in the encryption node (300) computes (3:1) a noise factor F as a function of a predefined integer parameter n of the selected encryption scheme and a random number r. When the message m is received (3:3) from a client (302) for encryption, an encryption engine (300b) in the encryption node (300), encrypts (3:4) the message m by computing a cipher text c as e=gm·F mod n2, where g is another predefined integer parameter of the selected encryption scheme. The cipher text c is then delivered (3:5) as an encryption of the message m, e.g. to the client (302) or to a cloud of processing resources (304).Type: GrantFiled: June 2, 2015Date of Patent: April 7, 2020Assignee: TELEFONATIEBOLAGET LM ERICSSON (PUBL)Inventors: Bernard (Ben) Smeets, Christine Jost, Alexander Maximov
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Patent number: 10588164Abstract: In one aspect of the teachings herein, a controlling gateway and an associated radio access point are configured for operation in a radio access network and use a radio protocol stack that is split on the network side between the gateway and the access point, for conveying radio bearer traffic going between the radio access network and a wireless device. According to methods and apparatuses disclosed, the radio protocol entities affected by the stack split communicate using Internet Protocol, IP, sessions. Advantageously, the radio bearer traffic conveyed over the split stack maps to different IP sessions in dependence on any one or more of network capabilities, various isolation or privacy requirements associated with the device and/or traffic, the types of data being conveyed, the types of radio bearers involved, and the involved Radio Link Control, RLC, operating modes.Type: GrantFiled: October 15, 2018Date of Patent: March 10, 2020Assignee: TELEFONATIEBOLAGET LM ERICSSON (PUBL)Inventors: Suresh Krishnan, Stere Preda, Catherine Truchan
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Patent number: 10477032Abstract: A performance monitoring system and method is based on a Detailed Call Record (DCR). A DCR contains records of events occurring in different network domains (14, 20, 40) that are related to a single, specific VoLTE call. The DCR events for each VoLTE call cover all legs of the call, and for each call leg, the relevant events are ordered by time. A DCR also contains basic information to identify the call: the IMS Charging Identifier (ICID), the International Mobile Subscriber Identity (IMSI) of all involved subscribers, and the start and stop timestamps of the call. A DCR has all the relevant user plane measurement, radio measurement, and control plane data from all the involved domains (14, 20, 40) for all call legs of a VoLTE call, in contrast to prior art systems that focus only on a single subscriber's activities for a given call. The DCR thus provides a complete view of the call, allowing more complete analytics and troubleshooting.Type: GrantFiled: August 26, 2016Date of Patent: November 12, 2019Assignee: TELEFONATIEBOLAGET LM ERICSSON (PUBL)Inventors: László Kovács, Attila Báder, Jeno Hajdu, György Szaniszló, Ferenc Szász
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Patent number: 9743413Abstract: A method in a network node for enhancing a channel estimate based on a Dedicated Physical Control Channel, DPCCH, between a user node and the network node is provided. The DPCCH has a first power. The network node receives (501) the DPCCH. The first power of the DPCCH is boosted with additional power, resulting in a second power. The network node then obtains (502) a channel estimate based on the DPCCH comprising the second power. As soon as said channel estimate is obtained, the network node removes (503) the additional power from the DPCCH based channel estimate.Type: GrantFiled: November 16, 2015Date of Patent: August 22, 2017Assignee: Telefonatiebolaget LM Ericsson (Publ)Inventors: Erik Larsson, Michael Samuel Bebawy, Peter Von Wrycza, Yi-Pin Eric Wang
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Patent number: 8441951Abstract: The technology applies to a cellular radio network where each cell area is associated with a radio base station in which mobile terminals communicate with at least one of the base stations over a radio interface. The mobile terminals perform mobility-related measurements on downlink signals received from a corresponding neighbor cell during time slots configured for downlink transmission measurement. A configuration node receives input information, and based on that received input information, determines measurement time slot configuration information. The node provides the measurement time slot configuration information to the base stations so that the base stations may signal the measurement time slot configuration information to mobile terminals.Type: GrantFiled: December 5, 2008Date of Patent: May 14, 2013Assignee: Telefonatiebolaget LM Ericsson (PUBL)Inventors: Muhammad Kazmi, David Astely
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Patent number: 7091779Abstract: In the present invention a completely different approach for modeling of non-linear devices or processes is used. A cascade of blocks each depending on a non-linearity parameter are utilized both in non-linear modeling and a pre-distorter design. The new non-linear model description can be used for characterization of a non-linear system or for linearizing a non-linear system. Application to a Communications System Multi-carrier Amplifier is shown as an application example. Also for other application areas of the new mathematical method is feasible echo-canceling, non-linear communications channels etc. Parameter extractions and tables for the new model do not give multiple dimensional mathematical solutions for parameter extractions as in prior art.Type: GrantFiled: October 29, 2002Date of Patent: August 15, 2006Assignee: Telefonatiebolaget LM Ericsson (publ)Inventor: Karl-Gosta Sahlman
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Patent number: 6940829Abstract: In a method of running a processor for high performance operation in a communication network one function of the processor is a calculation using an algorithm. The function can include calculation for each of a plurality channels. In situations, when there is not available processor capacity to perform the calculation function for each channel, the quality of the algorithm is degraded in a controlled manner to decrease the amount of necessary calculations so that more channels can be handled. The quality of the algorithm is degraded by dividing the algorithm into subfunctions and by performing only some of the subfunctions in said situations when momentary calculation peak exist.Type: GrantFiled: January 16, 2001Date of Patent: September 6, 2005Assignee: Telefonatiebolaget LM Ericsson (publ)Inventor: Erik Walles
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Patent number: 6448493Abstract: The present invention relates to a combined cable suspension device and cable carriage. To enable a cable suspension device (1) to be used also as a cable carriage, the suspension device has been provided with a rotatable cable support (2) which can be moved upwards in the device providing a rotatable support for the cable when the cable is moved out of contact with the cable abutment surfaces (3) in the suspension device. This type of device that incorporates a cable carriage facility enables a cable to be drawn and secured and released as required.Type: GrantFiled: November 8, 2001Date of Patent: September 10, 2002Assignee: Telefonatiebolaget LM Ericsson (publ)Inventors: Lars Efraimsson, Per Dahlberg, Johan Tapper, Jonas Nordlöf
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Patent number: 6194866Abstract: An electric arrangement, a battery pack and methods for transmitting digitally encoded information from a first electric device to a digital processor in a second electric device, and a battery information signal transmitted between the devices. An encoder is located in the first electric device and contains the digitally encoded information. A communication line capable of conveying electric information signals representing the information connects the electric devices. A decoder is located in the second electric device and is capable of decoding the information signals into information and supplying the information to the processor in the second device.Type: GrantFiled: December 21, 1999Date of Patent: February 27, 2001Assignee: Telefonatiebolaget LM Ericsson (Publ)Inventor: Torbjörn Olsson
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Patent number: 5917368Abstract: A voltage-to-current converter for converting an input voltage signal into an output current signal, while providing a filtering function. The input voltage signal is converted to an intermediate current signal by an input resistance and an equivalent resistance provided by, for example, an inverting amplifier and a transistor. A current mirror having a dominant pole converts the intermediate current signal to the output voltage signal, and provides low pass filtering. The converter avoids the use of linear capacitors, and can be easily implemented in a CMOS device.Type: GrantFiled: May 8, 1996Date of Patent: June 29, 1999Assignee: Telefonatiebolaget LM EricssonInventors: Nianxiong Tan, Hans Mikael Gustavsson