Patents by Inventor Daniel Cederholm
Daniel Cederholm 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: 12536794Abstract: A method performed by a mobile device for handling identification of equipment. The mobile device records an image, in a recording direction at a first location, of the equipment. Upon recording the image, the mobile device further obtains one or more radiation indications for determining a direction of radiation from the equipment; and provides the obtained one or more radiation indications associated with the recorded image, to an internal identifying process at the mobile device and/or a network node for identifying the equipment.Type: GrantFiled: December 16, 2019Date of Patent: January 27, 2026Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Maxim Teslenko, Marios Daoutis, Athanasios Karapantelakis, Konstantinos Vandikas, Daniel Cederholm, Aneta Vulgarakis Feljan, Marin Orlic
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Publication number: 20250159541Abstract: A first network node, a second network node and methods therein, for handling baseband processing of signals communicated with wireless devices in a wireless network. The first network node communicates a first type of signals with a first wireless device and performs a first part of baseband processing of the first type of signals using a non-GPP implemented processor. The first network node also communicates the first type of signals with the second network node for a second part of baseband processing of the first type of signals using a GPP implemented processor. The first network node further communicates a second type of signals with a second wireless device and performs both of said first and second parts of baseband processing of the second type of signals using the non-GPP implemented processor.Type: ApplicationFiled: January 17, 2025Publication date: May 15, 2025Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Chenguang LU, Johan ZHANG, Miguel BERG, Daniel CEDERHOLM
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Patent number: 12238569Abstract: A first network node, a second network node and methods therein, for handling baseband processing of signals communicated with wireless devices in a wireless network. The first network node communicates a first type of signals with a first wireless device and performs a first part of baseband processing of the first type of signals using a non-GPP implemented processor. The first network node also communicates the first type of signals with the second network node for a second part of baseband processing of the first type of signals using a GPP implemented processor. The first network node further communicates a second type of signals with a second wireless device and performs both of said first and second parts of baseband processing of the second type of signals using the non-GPP implemented processor.Type: GrantFiled: December 15, 2023Date of Patent: February 25, 2025Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Chenguang Lu, Johan Zhang, Miguel Berg, Daniel Cederholm
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Publication number: 20240340661Abstract: Embodiments herein may for example disclose a method performed by a transmitting node, such as a first network node, for handling communication between a control node and a device controlled by the control node. The control node and the device are configured for wired communication. The transmitting node receives one or more packets in a first format from the control node or the device over a wired connection. The transmitting node processes the one or more packets into a second format for communication over a wireless connection by using a transmission process for processing the one or more packets into the second format; and transmits the one or more packets in the second format over the wireless connection towards the device or the control node.Type: ApplicationFiled: June 21, 2022Publication date: October 10, 2024Inventors: Vicknesan AYADURAI, Daniel CEDERHOLM, Peter DE BRUIN, Junaid ANSARI, Jonas KRONANDER
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Publication number: 20240121654Abstract: A first network node, a second network node and methods therein, for handling baseband processing of signals communicated with wireless devices in a wireless network. The first network node communicates a first type of signals with a first wireless device and performs a first part of baseband processing of the first type of signals using a non-GPP implemented processor. The first network node also communicates the first type of signals with the second network node for a second part of baseband processing of the first type of signals using a GPP implemented processor. The first network node further communicates a second type of signals with a second wireless device and performs both of said first and second parts of baseband processing of the second type of signals using the non-GPP implemented processor.Type: ApplicationFiled: December 15, 2023Publication date: April 11, 2024Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Chenguang LU, Johan ZHANG, Miguel BERG, Daniel CEDERHOLM
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Patent number: 11856443Abstract: A first network node, a second network node and methods therein, for handling baseband processing of signals communicated with wireless devices in a wireless network. The first network node communicates a first type of signals with a first wireless device and performs a first part of baseband processing of the first type of signals using a non-GPP implemented processor. The first network node also communicates the first type of signals with the second network node for a second part of baseband processing of the first type of signals using a GPP implemented processor. The first network node further communicates a second type of signals with a second wireless device and performs both of said first and second parts of baseband processing of the second type of signals using the non-GPP implemented processor.Type: GrantFiled: February 21, 2023Date of Patent: December 26, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Chenguang Lu, Johan Zhang, Miguel Berg, Daniel Cederholm
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Patent number: 11838878Abstract: Disclosed is a method performed by a first unit of a base station system of a wireless communication network for handling a signal for transmission over a fronthaul link between the first unit and a second unit of the base station system. The base station system includes a base unit and a remote unit. The method includes receiving the signal having at least one complex value, each consisting of two subparts, each being represented by a first number of bits, and transmitting the signal over the fronthaul link to the second unit, wherein at least two subparts are represented in a subgroup, the subgroup being a binary codeword having an integer number of bits that is a multiple of a second non-integer number of bits allocated per subpart, the second non-integer number of bits being fewer than the first number of bits.Type: GrantFiled: December 20, 2018Date of Patent: December 5, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Miguel Berg, Daniel Cederholm, Chenguang Lu
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Publication number: 20230209392Abstract: A first network node, a second network node and methods therein, for handling baseband processing of signals communicated with wireless devices in a wireless network. The first network node communicates a first type of signals with a first wireless device and performs a first part of baseband processing of the first type of signals using a non-GPP implemented processor. The first network node also communicates the first type of signals with the second network node for a second part of baseband processing of the first type of signals using a GPP implemented processor. The first network node further communicates a second type of signals with a second wireless device and performs both of said first and second parts of baseband processing of the second type of signals using the non-GPP implemented processor.Type: ApplicationFiled: February 21, 2023Publication date: June 29, 2023Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Chenguang LU, Johan ZHANG, Miguel BERG, Daniel CEDERHOLM
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Patent number: 11690008Abstract: Embodiments presented herein relates to a method for saving power in remote radio heads (RRHs) of a wireless communication system. The method is performed in an RRH controller node associated with a plurality of RRHs or the same cell, each of the plurality of RRHs having at least a first antenna branch A of the cell and a second antenna branch B of the cell. The method comprises providing S120 a first power saving indication to a first RRH of the plurality of RRHs, to inactivate its first antenna branch A, and providing S120 a second power saving indication to a second RRH of the plurality of RRHs, to inactivate its second antenna branch B, wherein at least one antenna branch is kept active in the first and second RRH. RRH controller nodes, a computer programs and a computer program product for saving power in RRHs of a wireless communication system are also presented.Type: GrantFiled: August 24, 2018Date of Patent: June 27, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Miguel Berg, Chenguang Lu, Daniel Cederholm, André Mendes Cavalcante
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Patent number: 11632139Abstract: In mobile communications networks, requirements on signal distortion may be fulfilled at a lower bit rate, or alternatively quantization noise be reduced for a given bit rate, by including fractional exponent bits in a block floating point format. One or more fractional exponent bits may apply to all samples in the block. Alternatively, fractional bits may apply to sub-blocks within the block. The optimal number of fractional bits depends on the number of samples in the block.Type: GrantFiled: December 28, 2018Date of Patent: April 18, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Miguel Berg, Chenguang Lu, Daniel Cederholm, Jan Roxbergh, Fredrik Huss
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Patent number: 11595843Abstract: A first network node, a second network node and methods therein, for handling baseband processing of signals communicated with wireless devices in a wireless network. The first network node communicates a first type of signals with a first wireless device and performs a first part of baseband processing of the first type of signals using a non-GPP implemented processor. The first network node also communicates the first type of signals with the second network node for a second part of baseband processing of the first type of signals using a GPP implemented processor. The first network node further communicates a second type of signals with a second wireless device and performs both of said first and second parts of baseband processing of the second type of signals using the non-GPP implemented processor.Type: GrantFiled: December 29, 2017Date of Patent: February 28, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Chenguang Lu, Johan Zhang, Miguel Berg, Daniel Cederholm
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Publication number: 20220398838Abstract: A method performed by a mobile device for handling identification of equipment. The mobile device records an image, in a recording direction at a first location, of the equipment. Upon recording the image, the mobile device further obtains one or more radiation indications for determining a direction of radiation from the equipment; and provides the obtained one or more radiation indications associated with the recorded image, to an internal identifying process at the mobile device and/or a network node for identifying the equipment.Type: ApplicationFiled: December 16, 2019Publication date: December 15, 2022Inventors: Maxim TESLENKO, Marios DAOUTIS, Athanasios KARAPANTELAKIS, Konstantinos VANDIKAS, Daniel CEDERHOLM, Aneta VULGARAKIS FELJAN, Marin ORLIC
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Patent number: 11411606Abstract: Disclosed is a technique for estimating crosstalk between a first and second electrical transmission lines. The method comprises obtaining measurements of a received near end crosstalk, NEXT, signal, the NEXT signal being received at a first end of the second transmission line over a time period as a result of an electrical signal sent onto the first transmission line from its first end, the obtained measurements being in the time domain. Subsequently, a crosstalk coupling estimate is obtained per transmission line sub-interval by compensating the obtained measurements in the time domain of the received NEXT signal for round-trip attenuation of the sent signal from the first end of the first line to the sub-interval and back to the first end of the second line, and an estimate of a total crosstalk coupling is obtained by adding together at least some of the obtained crosstalk coupling estimates per transmission line sub-interval.Type: GrantFiled: March 24, 2016Date of Patent: August 9, 2022Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Miguel Berg, Daniel Cederholm
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Patent number: 11329668Abstract: A method performed by an encoder of a base station system, for handling a data stream for transmission over a transmission connection between a remote unit and a base unit of the base station system, the remote unit being arranged to transmit wireless signals to, and receive from, mobile stations. The method comprises quantizing a plurality of IQ samples, converting the quantized plurality of IQ samples to IQ predictions, calculating per sample a difference between the quantized plurality of IQ samples and the IQ predictions in order to create IQ prediction errors. The method further comprises quantizing the IQ predictions or the IQ prediction errors, entropy encoding the IQ prediction errors and sending the entropy encoded IQ prediction errors over the transmission connection to a decoder of the base station system. The method can be performed by a decoder.Type: GrantFiled: December 20, 2017Date of Patent: May 10, 2022Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Miguel Berg, Chenguang Lu, Per Ola Börjesson, Daniel Cederholm, Elmar Trojer
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Publication number: 20220123854Abstract: Disclosed is a method performed by a first unit, which is any of a baseband unit (170) and a radio unit (160) of abase station system (100). The method comprises transmitting a first user plane data stream to a second unit, which is the other of the baseband unit and the radio unit, over a first fronthaul link (165), using a first encoding scheme resulting in a first data rate, and transmitting a second user plane data stream to the second unit over a second fronthaul link (167), using a second encoding scheme resulting in a second data rate.Type: ApplicationFiled: February 18, 2019Publication date: April 21, 2022Inventors: Daniel Cederholm, Miguel Berg, Chenguang Lu
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Publication number: 20220070045Abstract: In mobile communications networks, requirements on signal distortion may be fulfilled at a lower bit rate, or alternatively quantization noise be reduced for a given bit rate, by including fractional exponent bits in a block floating point format. One or more fractional exponent bits may apply to all samples in the block. Alternatively, fractional bits may apply to sub-blocks within the block. The optimal number of fractional bits depends on the number of samples in the block.Type: ApplicationFiled: December 28, 2018Publication date: March 3, 2022Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Miguel BERG, Chenguang LU, Daniel CEDERHOLM, Jan ROXBERGH, Fredrik HUSS
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Publication number: 20220070797Abstract: Disclosed is a method performed by a first unit of a base station system of a wireless communication network for handling a signal for transmission over a fronthaul link between the first unit and a second unit of the base station system. The base station system includes a base unit and a remote unit. The method includes receiving the signal having at least one complex value, each consisting of two subparts, each being represented by a first number of bits, and transmitting the signal over the fronthaul link to the second unit, wherein at least two subparts are represented in a subgroup, the subgroup being a binary codeword having an integer number of bits that is a multiple of a second non-integer number of bits allocated per subpart, the second non-integer number of bits being fewer than the first number of bits.Type: ApplicationFiled: December 20, 2018Publication date: March 3, 2022Inventors: Miguel BERG, Daniel CEDERHOLM, Chenguang LU
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Publication number: 20210289439Abstract: Embodiments presented herein relates to a method for saving power in remote radio heads (RRHs) of a wireless communication system. The method is performed in an RRH controller node associated with a plurality of RRHs or the same cell, each of the plurality of RRHs having at least a first antenna branch A of the cell and a second antenna branch B of the cell. The method comprises providing S120 a first power saving indication to a first RRH of the plurality of RRHs, to inactivate its first antenna branch A, and providing S120 a second power saving indication to a second RRH of the plurality of RRHs, to inactivate its second antenna branch B, wherein at least one antenna branch is kept active in the first and second RRH. RRH controller nodes, a computer programs and a computer program product for saving power in RRHs of a wireless communication system are also presented.Type: ApplicationFiled: August 24, 2018Publication date: September 16, 2021Inventors: Miguel BERG, Chenguang LU, Daniel CEDERHOLM, André Mendes CAVALCANTE
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Publication number: 20210235278Abstract: Systems, methods and apparatuses are disclosed for virtualization of radio access network technology to provide baseband processing in a cloud environment. An example method includes providing a first virtualized network node that includes a feature function. The feature function is communicatively coupled to receive baseband data from a communication stack function of a second virtualized network node. The communication stack function of the second virtualized network node receives a plurality of baseband data and provides, via a cloud data distribution system, at least a subset of the plurality of baseband data to the feature function of the first virtualized network node.Type: ApplicationFiled: August 30, 2018Publication date: July 29, 2021Inventors: Chenguang LU, Daniel CEDERHOLM, Miguel BERG, Simon DUQUENNOY, Niklas WIRSTRÖM
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Publication number: 20200344635Abstract: A first network node, a second network node and methods therein, for handling baseband processing of signals communicated with wireless devices in a wireless network. The first network node communicates a first type of signals with a first wireless device and performs a first part of baseband processing of the first type of signals using a non-GPP implemented processor. The first network node also communicates the first type of signals with the second network node for a second part of baseband processing of the first type of signals using a GPP implemented processor. The first network node further communicates a second type of signals with a second wireless device and performs both of said first and second parts of baseband processing of the second type of signals using the non-GPP implemented processor.Type: ApplicationFiled: December 29, 2017Publication date: October 29, 2020Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Chenguang LU, Johan ZHANG, Miguel BERG, Daniel CEDERHOLM