Patents by Inventor Henrik Sahlin
Henrik Sahlin 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).
-
Patent number: 11818674Abstract: The present disclosure relates to transmitting synchronization signals and in particular to so called beam sweep. In particular the disclosure relates to methods for providing synchronization using synchronization sequences that are transmitted at different points in time. The disclosure also relates to corresponding devices and computer programs. A method in a network node, for transmitting synchronization sequences of a synchronization signal to one or more receiving wireless devices, comprises determining multiple synchronization sequences, such that each synchronization sequence comprises a respective timing indication, whereby each synchronization sequence enables determination of a time of an event in a receiving wireless device and transmitting the synchronization sequences to the one or more wireless devices, at different points in time.Type: GrantFiled: January 5, 2022Date of Patent: November 14, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Johan Axnäs, Kumar Balachandran, Icaro Leonardo Da Silva, Dennis Hui, Andres Reial, Johan Rune, Henrik Sahlin
-
Patent number: 11818709Abstract: A method for operating a wireless communication network, wherein a first member of the network transmits a scheduling message to a secondary member of the network and the secondary member receives the scheduling message. The secondary member schedules sounding signal transmissions and/or a corresponding schedule based on the scheduling message, wherein the scheduling message and/or the sounding signal schedule refers to a schedule for sounding signals based on a status of beam forming performed in the network and/or wherein the sounding signal schedule and/or the schedule message refers to a compact schedule of sounding signals.Type: GrantFiled: July 8, 2020Date of Patent: November 14, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Håkan Andersson, Mattias Frenne, Johan Furuskog, Stefan Parkvall, Henrik Sahlin, Qiang Zhang
-
Patent number: 11812416Abstract: According to embodiments described herein, a long delay-detector improves delay estimation performance for PRACH for many practical deployment scenarios. This, for example, reduces the risk that the timing advance of the UE is set incorrectly and hence reduces the risk that subsequent communication fails and that the UE spreads unnecessary interference to other communication in the system.Type: GrantFiled: February 6, 2018Date of Patent: November 7, 2023Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Johan Axnäs, Henrik Sahlin, Andres Reial, Naga Vishnu Kanth Irukulapati
-
Publication number: 20230337199Abstract: There is disclosed a method of operating a terminal (10) in a wireless communication network, the method comprising receiving and/or transmitting according to a transmission time interval, TTI, configuration, the TTI configuration indicating at least one short transmitting time interval having between one or two and seven symbols of duration in a subframe. There are also disclosed related methods and devices.Type: ApplicationFiled: June 23, 2023Publication date: October 19, 2023Inventors: Henrik Sahlin, Niklas Andgart, Laetitia Falconetti, Daniel Larsson, Jingya Li, Gustav Wikström
-
Patent number: 11758585Abstract: A method in a UE comprises: receiving a message from a network node comprising information about one or more sets of dedicated random access channel (RACH) resources, each set of dedicated RACH resources associated with a beam associated with a target cell; obtaining an estimate of beam quality for each beam associated with the sets of dedicated RACH resources; determining, based on the obtained estimate of beam quality, whether any beam associated with the one or more sets of dedicated RACH resources meets one or more criteria of a first set of criteria for performing random access; and performing random access based on whether any beam associated with the one or more sets of dedicated RACH resources meets the one or more criteria of the first set of criteria for performing random access.Type: GrantFiled: September 28, 2018Date of Patent: September 12, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Icaro L. J. Da Silva, Henrik Sahlin, Mats Folke, Janne Peisa, Jan Christoffersson
-
Patent number: 11751238Abstract: A method in a wireless device for performing random access to a network node. The method comprises receiving a set of downlink beam-specific reference signals, BRS, from the network node, and determining a preferred BRS based on the received signal power for each BRS. The method also comprises selecting, based on the preferred BRS, a random-access resource to be used for transmitting a random-access attempt to the network node, as well as using the selected random-access resource when transmitting a random-access attempt to the network node, whereby the selection of random-access resource indicates to the network node which downlink beam is preferred by the wireless device to be used for downlink transmissions.Type: GrantFiled: September 2, 2020Date of Patent: September 5, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Mattias Frenne, Håkan Andersson, Johan Furuskog, Stefan Parkvall, Henrik Sahlin, Qiang Zhang
-
Publication number: 20230276341Abstract: A method (200) for configuring UEs. The method includes assigning (s202) a first access identity number to a first mission critical, MC, UE (102). The method also includes assigning (s204) a second access identity number to a second MC UE. The first access identity number is different than the second access identity number.Type: ApplicationFiled: April 19, 2021Publication date: August 31, 2023Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Jingya LI, Henrik SAHLIN, Joakim ÅKESSON
-
Patent number: 11729752Abstract: There is disclosed a method of operating a terminal (10) in a wireless communication network, the method comprising receiving and/or transmitting according to a transmission time interval, TTI, configuration, the TTI configuration indicating at least one short transmitting time interval having between one or two and seven symbols of duration in a subframe. There are also disclosed related methods and devices.Type: GrantFiled: September 29, 2021Date of Patent: August 15, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Henrik Sahlin, Niklas Andgart, Laetitia Falconetti, Daniel Larsson, Jingya Li, Gustav Wikström
-
Patent number: 11729815Abstract: A method in a network node for managing random-access procedures with a plurality of wireless devices. The method comprising transmitting an indication of a modulation format to one or more of the plurality of wireless devices to configure the modulation format for a random access message (3) transmission from the one or more wireless devices.Type: GrantFiled: November 23, 2021Date of Patent: August 15, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Henrik Sahlin, Robert Baldemair, Erik Dahlman, Stefan Parkvall
-
Publication number: 20230247499Abstract: A radio network node, such as a gNodeB (gNB), a User Equipment (UE) and a method, for configuring the UE for camping on a cell in a radio network for Synchronization Signal (SS) Blocks based cell re-selection measurements for RRC_IDLE and RRC_INACTIVE states. The method comprises providing information to the UE, including configuration parameters for a measurement window, the configuration parameters defining a window periodicity, offset and duration, for configuring the UE for the SS Blocks based cell re-selection measurements for RRC_IDLE and RRC_INACTIVE states. Radio Resource Control (RRC) signaling is used to convey the information to the UE prior to or in conjunction with switching the UE from RRC_CONNECTED state to RRC_INACTIVE or RRC_IDLE state, a RRCConnectionRelease message is used to convey the information to the UE and the information is also provided to the UE in system information (SI).Type: ApplicationFiled: April 12, 2023Publication date: August 3, 2023Inventors: Pradeepa RAMACHANDRA, Wei SHEN, Johan RUNE, Henrik SAHLIN
-
Publication number: 20230246892Abstract: A user equipment (910) is provided for use in a cellular network. The user equipment includes a transceiver (1010), a processor (1020), and a memory (1030). The user equipment (910) is configured to determine, for a data transmission, a mapping form a demodulation reference signal (DMRS) to a PNT-RS. A DMRS resulting signal is generated from a subset of DMRS for a first resource element in a subcarrier. The DMRS resulting signal is copied from the first resource element to a second resource element assigned to the PNT-RS in the subcarrier. The data transmission is transmitted using the DMRS resulting signal and the PNT-RS.Type: ApplicationFiled: April 10, 2023Publication date: August 3, 2023Inventors: Martin Hessler, Robert BALDEMAIR, Lars LINDBOM, Henrik SAHLIN, Niclas WIBERG
-
Publication number: 20230239889Abstract: A guard period for switching between uplink and downlink subframes is created by shortening an uplink subframe, i.e., by not transmitting during one or more symbol intervals at the beginning of the subframe interval. A grant message includes signaling indicating when a shortened subframe should be transmitted. An example method is implemented in a first wireless node configured to transmit data in transmit subframes occurring at defined subframe intervals and having a predetermined number of symbol intervals. This example method includes determining that a transmit subframe is to be shortened, relative to the predetermined number of symbol intervals and, in response to this determination, shortening transmission of the transmit subframe by not transmitting during a beginning portion of the subframe interval for the transmit subframe and transmitting during the remainder of the subframe interval.Type: ApplicationFiled: March 20, 2023Publication date: July 27, 2023Inventors: Henrik Sahlin, Johan Furuskog, Stefan Parkvall, Qiang Zhang
-
Publication number: 20230232365Abstract: A method (700, 800), system (3210) and apparatus (900, 1000) are disclosed. According to one aspect, a method (700) for determining positioning is performed by a wireless device (1000). The method (700) comprising: receiving (720) a reference signal and performing a positioning measurement based on the received reference signal; receiving (730) positioning information based on the received reference signal, wherein the received positioning information comprises a positioning measurement reported by a neighbouring wireless device performed on the reference signal; and determining (740) further positioning information based on the positioning measurement and the received positioning information.Type: ApplicationFiled: June 29, 2021Publication date: July 20, 2023Inventors: Henrik SAHLIN, Satyam DWIVEDI
-
Publication number: 20230224059Abstract: Methods and apparatus in a fifth-generation wireless communications, including an example method, in a wireless device, that includes receiving a downlink signal comprising an uplink access configuration index, using the uplink access configuration index to identify an uplink access configuration from among a predetermined plurality of uplink access configurations, and transmitting to the wireless communications network according to the identified uplink access configuration. The example method further includes, in the same wireless device, receiving, in a first subframe, a first Orthogonal Frequency-Division Multiplexing (OFDM) transmission formatted according to a first numerology and receiving, in a second subframe, a second OFDM transmission formatted according to a second numerology, the second numerology differing from the first numerology. Variants of this method, corresponding apparatuses, and corresponding network-side methods and apparatuses are also disclosed.Type: ApplicationFiled: January 5, 2023Publication date: July 13, 2023Inventors: Stefan Parkvall, Janne Peisa, Gunnar Mildh, Robert Baldemair, Stefan Wager, Jonas Kronander, Karl Werner, Richard Abrahamsson, Ismet Aktas, Peter Alriksson, Junaid Ansari, Shehzad Ali Ashraf, Henrik Asplund, Fredrik Athley, Håkan Axelsson, Joakim Axmon, Johan Axnäs, Kumar Balachandran, Gunnar Bark, Jan-Erik Berg, Andreas Bergström, Håkan Björkegren, Nadia Brahmi, Cagatay Capar, Anders Carlsson, Andreas Cedergren, Mikael Coldrey, Icaro L. J. da Silva, Erik Dahlman, Ali El Essaili, Ulrika Engström, Mårten Ericson, Erik Eriksson, Mikael Fallgren, Rui Fan, Gabor Fodor, Pål Frenger, Jonas Fridén, Jonas Fröberg Olsson, Anders Furuskär, Johan Furuskog, Virgile Garcia, Ather Gattami, Fredrik Gunnarsson, Ulf Gustavsson, Bo Hagerman, Fredrik Harrysson, Ning He, Martin Hessler, Kimmo Hiltunen, Songnam Hong, Dennis Hui, Jörg Huschke, Tim Irnich, Sven Jacobsson, Niklas Jaldén, Simon Järmyr, Zhiyuan Jiang, Martin Johansson, Niklas Johansson, Du Ho Kang, Eleftherios Karipidis, Patrik Karlsson, Ali S. Khayrallah, Caner Kilinc, Göran N. Klang, Sara Landström, Christina Larsson, Gen Li, Lars Lindbom, Robert Lindgren, Bengt Lindoff, Fredrik Lindqvist, Jinhua Liu, Thorsten Lohmar, Qianxi Lu, Lars Manholm, Ivana Maric, Jonas Medbo, Qingyu Miao, Reza Moosavi, Walter Müller, Elena Myhre, Karl Norrman, Bengt-Erik Olsson, Torgny Palenius, Sven Petersson, Jose Luis Pradas, Mikael Prytz, Olav Queseth, Pradeepa Ramachandra, Edgar Ramos, Andres Reial, Thomas Rimhagen, Emil Ringh, Patrik Rugeland, Johan Rune, Joachim Sachs, Henrik Sahlin, Vidit Saxena, Nima Seifi, Yngve Selén, Eliane Semaan, Sachin Sharma, Cong Shi, Johan Sköld, Magnus Stattin, Anders Stjernman, Dennis Sundman, Lars Sundström, Miurel Isabel Tercero Vargas, Claes Tidestav, Sibel Tombaz, Johan Torsner, Hugo Tullberg, Jari Vikberg, Peter von Wrycza, Thomas Walldeen, Pontus Wallentin, Hai Wang, Ke Wang Helmersson, Jianfeng Wang, Yi-Pin Eric Wang, Niclas Wiberg, Emma Wittenmark, Osman Nuri Can Yilmaz, Ali Zaidi, Zhan Zhang, Zhang Zhang, Yanli Zheng
-
Publication number: 20230224922Abstract: The disclosure relates to signalling of transmissions with shortened TTI. The disclosure further relates to an RBS and a method performed at the RBS of scheduling resources for a wireless communication device. The disclosure still further relates to a wireless communication device and a method performed at the wireless communication device of being granted data transmission or data reception. In a first aspect of the disclosure, a method performed at an RBS is provided for scheduling resources for a wireless communication device including indicating a grant of a resource for the wireless communication device to transmit or receive data based on DCI and a position of the DCI within a data frame of a downlink control channel.Type: ApplicationFiled: March 21, 2023Publication date: July 13, 2023Inventors: Jingya LI, Laetitia FALCONETTI, Henrik SAHLIN, Gustav WIKSTRÖM
-
Publication number: 20230217480Abstract: A method performed by a wireless device (121, 122) for determining Channel State Information, CSI, estimates to be transmitted in a CSI report for the wireless device (121, 122) to a network node (110) in a radio communications network (100) is provided. The wireless device (121, 122) receives a message comprising an indication to use CSI estimates corresponding to a determined period of time. In response to said message, the wireless device (121, 122) determines CSI estimates to be used in the CSI report to the network node (110) according to the received indication. A wireless device (121, 122) is also described. A network node (110) and method therein for controlling CSI estimates transmitted by one or more wireless devices (121, 122) in CSI reports to the network node (110) in a radio communications network (100) are also provided.Type: ApplicationFiled: March 13, 2023Publication date: July 6, 2023Inventors: Mattias Frenne, Qiang Zhang, Henrik Sahlin, Stefan Parkvall, Håkan Andersson, Johan Furuskog
-
Publication number: 20230199859Abstract: For a random access procedure (e.g., 2-step RACH and/or 4-step RACH), a network node may configure different physical random access preamble configurations (e.g., different PRACH occasions, preamble indexes, or preamble formats) for different user equipment (UE)/service groups that are associated with different UE priorities, UE types, service priorities, service types, and/or network slices. A UE may select a configuration to use to transmit the random access preamble based on the priority of the UE, the type of the UE, the priority of the service, the type of the service, and/or the network slice. In 2-step RACH, a network node may also configure different msgA PUSCH resources for different UE priorities, UE types, service priorities, service types, and/or network slices. The UE may transmit the random access preamble in accordance with the selected PRACH configuration as part of a contention based random access procedure.Type: ApplicationFiled: April 28, 2021Publication date: June 22, 2023Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Jingya LI, Zhipeng LIN, Henrik SAHLIN
-
Publication number: 20230199862Abstract: Methods and devices for the prioritization of random access procedure messages for high priority devices, such as for mission critical services. One or more of transmit power, repetition, table selection, P1/BPSK enablement, TB scaling, channel access and CP extension can be adapted for prioritize devices and messages.Type: ApplicationFiled: April 28, 2021Publication date: June 22, 2023Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Jingya LI, Zhipeng LIN, Henrik SAHLIN
-
Publication number: 20230189342Abstract: A method (1900) performed by a first UE for establishing a connection with an access point. The method includes the first UE transmitting (s1904) a random access, RA, preamble to an access point. The method also includes the first UE receiving (s1906) a message transmitted by the access point. The method also includes the first UE determining (s1908) a priority value included in or associated with the message. The method also includes the first UE determining (s1910), based on the priority value, whether or not the message is intended for a UE other than the first UE.Type: ApplicationFiled: April 20, 2021Publication date: June 15, 2023Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Zhipeng LIN, Jingya LI, Henrik SAHLIN
-
Publication number: 20230180300Abstract: For contention free random access (CFRA) with 2-step RA type or 4-step RA type, a network node may configure different physical random access preamble configurations (e.g., different PRACH occasions, preamble index, or preamble format) for different user equipment (UE)/service groups that are associated with different UE priorities, UE types, service priorities, service types, and/or network slices. A UE may select a configuration to use to transmit the random access preamble based on the priority of the UE, the type of the UE, the priority of the service, the type of the service, and/or the network slice. In 2-step RACH, a network node may also configure different msgA PUSCH resources for different UE priorities, UE types, service priorities, service types, and/or network slices.Type: ApplicationFiled: April 28, 2021Publication date: June 8, 2023Applicant: Telefonaktiebolaget LM Ericsson publ)Inventors: Zhipeng LIN, Jingya LI, Henrik SAHLIN
