Patents by Inventor Ulf Ekstedt
Ulf Ekstedt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11716270Abstract: The present disclosure relates to a method, apparatus and system for determining reliability information for a network component (240) of a telecommunications network. The disclosed method comprises: obtaining (310) a plurality of samples of an operating parameter of the network component (240) acquired over a period of time; determining (320) a value of an acceleration factor based on the plurality of samples, the acceleration factor corresponding to an effect of the operating parameter over time on the network component (240); and determining (330) the reliability information based on the determined value of the acceleration factor.Type: GrantFiled: August 31, 2018Date of Patent: August 1, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Antonio Tartaglia, Roberto Magri, Ulf Ekstedt
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Publication number: 20210320855Abstract: The present disclosure relates to a method, apparatus and system for determining reliability information for a network component (240) of a telecommunications network. The disclosed method comprises: obtaining (310) a plurality of samples of an operating parameter of the network component (240) acquired over a period of time; determining (320) a value of an acceleration factor based on the plurality of samples, the acceleration factor corresponding to an effect of the operating parameter over time on the network component (240); and determining (330) the reliability information based on the determined value of the acceleration factor.Type: ApplicationFiled: August 31, 2018Publication date: October 14, 2021Inventors: Antonio Tartaglia, Roberto Magri, Ulf Ekstedt
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Patent number: 10244491Abstract: A pluggable synchronization module comprises an antenna input, a Global Navigation Satellite System receiver, an electrical interface and processing circuitry. The Global Navigation Satellite System receiver is operative to receive satellite-transmitted signals comprising positioning-related information over the antenna input. The Global Navigation Satellite System receiver is further operative to determine a time reference from received positioning-related information and to provide a time reference signal according to the determined time reference. The electrical interface supports communication with the pluggable synchronization module. The electrical interface is a form-factor pluggable interface. The processing circuitry is connected to the Global Navigation Satellite System receiver and to the electrical interface.Type: GrantFiled: October 1, 2013Date of Patent: March 26, 2019Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Ulf Ekstedt, Harry Leino, Mats Rehnström
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Publication number: 20160277964Abstract: Devices and methods are provided to allow the multiplexing and demultiplexing of Common Public Radio Interface (CPRI) data streams exchanged between a Radio Equipment Control (REC) and a plurality of Radio Equipment (RE) in a radio base station system. The device is generally configured to demultiplex a first downlink CPRI data stream received from the REC, generate a plurality of second downlink CPRI data streams from the demultiplexed first downlink CPRI data stream, multiplex a plurality of second uplink CPRI data streams received from the plurality of REs, and generate a first uplink CPRI data stream from the multiplexed plurality of second uplink CPRI data streams.Type: ApplicationFiled: December 12, 2014Publication date: September 22, 2016Inventors: Qing Xu, Robert Brunner, Stephane Lessard, Ulf Ekstedt
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Publication number: 20160234795Abstract: A pluggable synchronization module comprises an antenna input, a Global Navigation Satellite System receiver, an electrical interface and processing circuitry. The Global Navigation Satellite System receiver is operative to receive satellite-transmitted signals comprising positioning-related information over the antenna input. The Global Navigation Satellite System receiver is further operative to determine a time reference from received such positioning-related information and to provide a time reference signal according to the determined time reference. The electrical interface supports communication with the pluggable synchronization module. The electrical interface is a form-factor pluggable interface. The processing circuitry is connected to the Global Navigation Satellite System receiver and to the electrical interface.Type: ApplicationFiled: October 1, 2013Publication date: August 11, 2016Inventors: Ulf EKSTEDT, Harry LEINO, Mats REHNSTRÖM
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Patent number: 9368887Abstract: An apparatus including a socket forming at least one compartment together with a printed circuit board assembly. The compartment including a first side wall, a second side wall, a ceiling, and an opening for receiving one pluggable transceiver, such that when the pluggable transceiver is inserted into the opening, a transceiver contact of the pluggable transceiver is connected to a respective board contact of the printed circuit board assembly. A clamping means is arranged along at least one surface of: the first side wall, the second side wall and the ceiling, to exert a pressure on the pluggable transceiver towards a surface that is opposed the surface on which the clamping means is arranged. The opposed being one of: the second side wall, the first side wall, and the printed circuit board assembly, when the pluggable transceiver is inserted into the opening.Type: GrantFiled: June 5, 2014Date of Patent: June 14, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ulf Ekstedt, Michael Lindahl, Hong Tang
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Patent number: 9282682Abstract: Heat conducting mounting structure for mounting of electronic modules, comprising first surface area that is adapted to face a second surface area of the electronic module; cavity means embedded at a distance from the first surface area; said cavity means is adapted to receive a cooling means; attachment means at the first surface area adapted for attaching the electronic module; and wherein the attachment means is adapted for a transfer of the heat energy from the electronic module to the mounting structure. Further a method for mounting the electronic module on the heat conducting mounting comprising the step of adjoining an attachment means with a fixing means and the fixing means with the electronic module to obtain at least one immediate connection pressure area between the first surface area of a wall and the second surface area of the electronic module. Also a radio base station housing arrangement is provided.Type: GrantFiled: December 23, 2009Date of Patent: March 8, 2016Assignee: Telefonaktiebolaget L M Ericsson (Publ)Inventors: Ulf Ekstedt, Mikael Johansson
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Patent number: 9141427Abstract: A method of allocating tasks in a node of a telecommunication network, wherein the node comprises a main processing unit which is configured to process tasks in association with one or more of a plurality of peripheral processing units, the peripheral processing units arranged in a hierarchical tree topology comprising one or more branches at one or more hierarchical levels. The method comprises the steps of: receiving a request to process a task; determining a temperature status of branches in the hierarchical tree topology, wherein the temperature status of a branch is related to the temperature of a processing unit coupled to the branch; and allocating the task to one or more processing units, based on the temperature status of the branches in the hierarchical tree topology.Type: GrantFiled: April 27, 2012Date of Patent: September 22, 2015Assignee: Telefonaktiebolaget L M Ericsson (publ)Inventors: Jonas Boegård, Ulf Ekstedt, Jan Roxbergh
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Publication number: 20140360769Abstract: An apparatus including a socket forming at least one compartment together with a printed circuit board assembly. The compartment including a first side wall, a second side wall, a ceiling, and an opening for receiving one pluggable transceiver, such that when the pluggable transceiver is inserted into the opening, a transceiver contact of the pluggable transceiver is connected to a respective board contact of the printed circuit board assembly. A clamping means is arranged along at least one surface of: the first side wall, the second side wall and the ceiling, to exert a pressure on the pluggable transceiver towards a surface that is opposed the surface on which the clamping means is arranged. The opposed being one of: the second side wall, the first side wall, and the printed circuit board assembly, when the pluggable transceiver is inserted into the opening.Type: ApplicationFiled: June 5, 2014Publication date: December 11, 2014Applicant: Telefonaktiebolaget L M Ericsson (publ)Inventors: Ulf EKSTEDT, Michael LINDAHL, Hong TANG
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Publication number: 20130275991Abstract: A method of allocating tasks in a node of a telecommunication network, wherein the node comprises a main processing unit which is configured to process tasks in association with one or more of a plurality of peripheral processing units, the peripheral processing units arranged in a hierarchical tree topology comprising one or more branches at one or more hierarchical levels. The method comprises the steps of: receiving a request to process a task; determining a temperature status of branches in the hierarchical tree topology, wherein the temperature status of a branch is related to the temperature of a processing unit coupled to the branch; and allocating the task to one or more processing units, based on the temperature status of the branches in the hierarchical tree topology.Type: ApplicationFiled: April 27, 2012Publication date: October 17, 2013Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Jonas Boegård, Ulf Ekstedt, Jan Roxbergh
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Publication number: 20120285003Abstract: Heat conducting mounting structure for mounting of electronic modules, comprising first surface area that is adapted to face a second surface area of the electronic module; cavity means embedded at a distance from the first surface area; said cavity means is adapted to receive a cooling means; attachment means at the first surface area adapted for attaching the electronic module; and wherein the attachment means is adapted for a transfer of the heat energy from the electronic module to the mounting structure. Further a method for mounting the electronic module on the heat conducting mounting comprising the step of adjoining an attachment means with a fixing means and the fixing means with the electronic module to obtain at least one immediate connection pressure area between the first surface area of a wall and the second surface area of the electronic module. Also a radio base station housing arrangement is provided.Type: ApplicationFiled: December 23, 2009Publication date: November 15, 2012Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Ulf Ekstedt, Mikael Johansson
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Patent number: 7266126Abstract: The present invention refers to a gateway (MGW1) in a telecommunication system (TS1) enabling connections to be effectively established between various networks (N1, N2, N3) in the telecommunication system. The gateway comprises resources from different nodes (RNC1, MSC1, IP1, VX1) of the various networks. Servers (S1-S6) from the networks are connected to the gateway (MGW1) and co-utilize the resources, which contributes to the effective utilization of the resources. This effective utilization of the resources is supported by the resources being divided into resource groups. Specific ones of these resource groups can be utilized by solely each one of the servers. Consequently, important services such as alarm services and security services can always reach the necessary resources in the gateway. Other resource groups can be co-utilized by only a small number of the servers while additional resource groups may be co-utilized by all of the servers (S1-6).Type: GrantFiled: July 5, 2000Date of Patent: September 4, 2007Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Gunnar Larsson, Patrik Wiss, Lars-Göran Petersen, Ulf Ekstedt
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Patent number: 7065094Abstract: The present invention relates to a coupling node (MG1) for coupling of communications in a telecommunication system, comprising networks (N1, N2) with different signal formats. The coupling node has switching and trunking functions (CP21, CP23) corresponding to the signal formats, and telefunctions, e.g. coders/decoders (F21) and echo cancellers (F22), which the node can couple into a communication by means of a selector (PS1). The functions are supported by printed board assemblies (CB1–CB9) in magazines (SR1), and the printed board assemblies have signal processors (DSP11–DSP13) with access points (SAP11–SAP14). The selector hunts one of the signal processors for handling one of the functions. If the processor has sufficiently free memory space in its data store and in its instruction memory and sufficient processor capacity, this processor is selected. Otherwise a new processor is hunted which is investigated in the same way.Type: GrantFiled: July 3, 2001Date of Patent: June 20, 2006Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Lars-Göran Petersen, Gunnar Larsson, Patrik Wiss, Ulf Ekstedt
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Patent number: 6894998Abstract: A media stream system (140) processes plural media streams (148), e.g., speech streams or speech channels. The system comprises plural processors (146), each of which execute one or more plural types of media stream processing functions (147). A switch function (144) routes packets of the plural media streams to a sequence of the plural processors whereby the plural types of media stream processing functions are sequentially performed relative to the packets. A packet size for the packets is chosen to minimize overhead load on at least one of the plural processors without causing undue delay for a packet awaiting processing by the at least one of the plural processors. In an example non-limiting implementation, the packet size for a packet of media information is chosen to be 160 octets, consecutive packets of a same media stream being separated by a packet repetition interval which is 20 milliseconds.Type: GrantFiled: October 25, 2000Date of Patent: May 17, 2005Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Patrik Wiss, Ulf Ekstedt, Ola Dagberg, Gunnar Larsson, Lars-Göran Petersen
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Patent number: 6848103Abstract: Method and apparatus for processing data in a multi-processor environment are provided. An application chain is built including at least one application to be performed on the data. The data is received, and program information, e.g., a pointer, is added to the data for identifying a current application in the application chain to be performed on the data. The data is forwarded to an available processor in the multi-processor environment and is processed using the current application identified by the added program information. The processed data is updated with new program information identifying a next application in the application chain to be performed, if any. The processed data is forwarded to an available processor, processed, and updated repeated times until the data is processed by all applications in the application chain.Type: GrantFiled: February 16, 2001Date of Patent: January 25, 2005Assignee: Telefonaktiebolaget LM EricssonInventors: Gunnar Larsson, Patrik Wiss, Lars-Göran Petersen, Ulf Ekstedt
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Patent number: 6754227Abstract: A gateway (MG1) interconnects telecom networks (N1,N2) of different types with different signal formats (ATM,IP). A first control unit (CC1), connected (C1) to a server, controls connection set up. A second control unit (RC2) provides telecom functions (F21-F28), such as speech coder/decoder or echo extinguisher, to the connection. A third control unit (BC3) establishes connections and sets up switch functions (CP21-CP27) corresponding to the different signal formats (ATM,IP). A signal format converter (CP29) converts to/from a common signal format (COM1) that the telecom functions uses. A speech request goes via the server to the first control unit (CC1), which requests telecom function (F21) by the second control unit (RC2). This returns the address (ADR11) of the telecom function to the first control unit (CC1) which sends the function address (ADR11) and the network address (ADR2) of the connection to the third control unit (BC3).Type: GrantFiled: September 29, 2000Date of Patent: June 22, 2004Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Lars-Göran Petersen, Ulf Ekstedt, Patrik Wiss, Ola Dagberg, Gunnar Larsson, Hans Peter Lippelt
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Publication number: 20030169726Abstract: The invention concerns a telecommunication gateway for processing a data stream in a local chain of process function such as media stream applications (MSAs). The gateway basically includes a bearer control unit (102), a connection coordinator (103), and a resource manager (104) with an associated pool (105) of resources. For a requested connection, the connection coordinator (103) requests a media connection agent (106) and the necessary media stream applications (MSA1-MSA3) from the resource manager (104). The connection agent (106) determines a routing table (107) based on the destination addresses of the requested MSAs, and uses the routing table (107) to route the data stream from an incoming exchange terminal (ET1) to an outgoing exchange terminal (ET2) through the chain of MSAs.Type: ApplicationFiled: March 31, 2003Publication date: September 11, 2003Inventors: Gunnar Bengt Larsson, Patrik Wiss, Lars-Goran Petersen, Ulf Ekstedt
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Patent number: 6577712Abstract: A distributed voice mail system in a network includes a server in a control layer of the network and one or more media gateways in a connectivity layer of the network, wherein the server controls resources in the media gateways to provide distributed voice mail services.Type: GrantFiled: April 4, 2001Date of Patent: June 10, 2003Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Gunnar Larsson, Patrik Wiss, Lars-Göran Petersen, Ulf Ekstedt
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Publication number: 20030018807Abstract: Method and apparatus for processing data in a multi-processor environment are provided. An application chain is built including at least one application to be performed on the data. The data is received, and program information, e.g., a pointer, is added to the data for identifying a current application in the application chain to be performed on the data. The data is forwarded to an available processor in the multi-processor environment and is processed using the current application identified by the added program information. The processed data is updated with new program information identifying a next application in the application chain to be performed, if any. The processed data is forwarded to an available processor, processed, and updated repeated times until the data is processed by all applications in the application chain.Type: ApplicationFiled: February 16, 2001Publication date: January 23, 2003Inventors: Gunnar Larsson, Patrik Wiss, Lars-Goran Petersen, Ulf Ekstedt
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Publication number: 20020052970Abstract: The present invention relates to a coupling node (MG1) for coupling of communications in a telecommunication system, comprising networks (N1, N2) with different signal formats. The coupling node has switching and trunking functions (CP21, CP23) corresponding to the signal formats, and telefunctions, e.g. coders/decoders (F21) and echo cancellers (F22), which the node can couple into a communication by means of a selector (PS1). The functions are supported by printed board assemblies (CB1-CB9) in magazines (SR1), and the printed board assemblies have signal processors (DSP11-DSP13) with access points (SAP11-SAP14). The selector hunts one of the signal processors for handling one of the functions. If the processor has sufficiently free memory space in its data store and in its instruction memory and sufficient processor capacity, this processor is selected. Otherwise a new processor is hunted which is investigated in the same way.Type: ApplicationFiled: July 3, 2001Publication date: May 2, 2002Inventors: Lars-Goran Petersen, Gunnar Larsson, Patrik Wiss, Ulf Ekstedt