Patents by Inventor Asbjorn Grovlen
Asbjorn Grovlen 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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Publication number: 20240098716Abstract: The embodiments herein relate to timing advance offset for uplink/downlink switching in New Radio (NR). In one embodiment, there proposes a method in a wireless communication device, comprising: determining a timing advance (TA) offset for uplink/downlink switching, wherein the TA offset is at least based on the time offset requirement for uplink/downlink switching in different scenarios used in communication between the wireless communication device and a network node; applying the determined TA offset in the uplink communication from the wireless communication device to the network node. With embodiments herein, uplink/downlink switching time for NR is defined.Type: ApplicationFiled: November 28, 2023Publication date: March 21, 2024Inventors: Naga Vishnu Kanth Irukulapati, Zhipeng Lin, Asbjörn Grövlen, Henrik Sahlin
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Publication number: 20240057180Abstract: A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.Type: ApplicationFiled: July 14, 2023Publication date: February 15, 2024Inventors: Jianwei Zhang, Stefan Parkvall, Fredrik Ovesjö, Zhipeng Lin, Jingya Li, Xingqin Lin, Jung-Fu Cheng, Robert Baldemair, Asbjörn Grövlen, Mattias Frenne
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Publication number: 20240048426Abstract: The disclosure relates to a method performed by a wireless device, for receiving system information from a network node of a wireless communication system. The system information is received in a synchronization signal (SS) block of an SS burst set comprising at least one SS block. The system information is multiplexed with information providing a time index indicating which SS block of the SS burst set that is being received. The method comprises receiving the information providing the time index, and receiving the system information, which comprises descrambling the system information using a scrambling sequence generated based on the information providing the time index. The method also comprises determining an accuracy of the information providing the time index, based on an error-detection code related to the received system information. The disclosure also relates to corresponding network node method and apparatus.Type: ApplicationFiled: October 10, 2023Publication date: February 8, 2024Inventors: Jianfeng Wang, Asbjörn Grövlen, Henrik Sahlin
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Patent number: 11877249Abstract: Embodiments of the invention include methods, systems, and computer programs to determine synchronization signal (SS) block mapping pattern in a wireless network. In one embodiment, a method is implemented in a terminal device for synchronization signal block (SSB) search in a wireless network, the method includes receiving, by the terminal device from a network device, a message containing synchronization signal block (SSB) information indicating a synchronization signal (SS) block subcarrier spacing (SCS) option, where the SS block SCS option maps to a plurality of SS block pattern candidates. The method continues with obtaining SSB candidate locations, using a SS block pattern determination from the plurality of SS block pattern candidates for the terminal device determined.Type: GrantFiled: July 10, 2019Date of Patent: January 16, 2024Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Zhipeng Lin, Asbjörn Grövlen, Fredrik Ovesjö, Robert Baldemair, Claes Tidestav
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Patent number: 11838164Abstract: The disclosure relates to a method performed by a wireless device, for receiving system information from a network node of a wireless communication system. The system information is received in a synchronization signal (SS) block of an SS burst set comprising at least one SS block. The system information is multiplexed with information providing a time index indicating which SS block of the SS burst set that is being received. The method comprises receiving the information providing the time index, and receiving the system information, which comprises descrambling the system information using a scrambling sequence generated based on the information providing the time index. The method also comprises determining an accuracy of the information providing the time index, based on an error-detection code related to the received system information. The disclosure also relates to corresponding network node method and apparatus.Type: GrantFiled: November 5, 2020Date of Patent: December 5, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Jianfeng Wang, Asbjörn Grövlen, Henrik Sahlin
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Patent number: 11832319Abstract: A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.Type: GrantFiled: October 20, 2022Date of Patent: November 28, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Jianwei Zhang, Stefan Parkvall, Fredrik Ovesjö, Zhipeng Lin, Jingya Li, Xingqin Lin, Jung-Fu Cheng, Robert Baldemair, Asbjörn Grövlen, Mattias Frenne
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Patent number: 11832228Abstract: The embodiments herein relate to timing advance offset for uplink/downlink switching in New Radio (NR). In one embodiment, there proposes a method in a wireless communication device, comprising: determining a timing advance (TA) offset for uplink/downlink switching, wherein the TA offset is at least based on the time offset requirement for uplink/downlink switching in different scenarios used in communication between the wireless communication device and a network node; applying the determined TA offset in the uplink communication from the wireless communication device to the network node. With embodiments herein, uplink/downlink switching time for NR is defined.Type: GrantFiled: August 23, 2021Date of Patent: November 28, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Naga Vishnu Kanth Irukulapati, Zhipeng Lin, Asbjörn Grövlen, Henrik Sahlin
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Patent number: 11825473Abstract: A method performed by a user equipment (UE) in idle mode, for determining common search space (CSS) for NB-IoT paging is disclosed. The method comprises determining a set of periodic subframes as a Paging Occasion (PO) subframe pattern. The method further comprises monitoring a starting subframe of paging CSS for a Radio Network Temporary Identifier (RNTI). The starting subframe of paging CSS is determined as follows: a first subframe (SF0) defined by the Paging Occasion subframe pattern, is used when SF0 is determined to be a valid downlink subframe. A next valid downlink subframe after SF0 is used when SF0 is determined to be an invalid downlink subframe.Type: GrantFiled: February 19, 2020Date of Patent: November 21, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Yufei Blankenship, Yutao Sui, Yi-Pin Eric Wang, Asbjörn Grövlen, Hazhir Shokri Razaghi, Xingqin Lin, Ansuman Adhikary, Johan Bergman
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Publication number: 20230308988Abstract: A method, network device and terminal device for providing remaining minimum system information (RMSI) in a wireless network. A method comprises determining whether a SS/PBCH block in the SS burst set configures the RMSI. In response to that the SS/PBCH block configures the RMSI, transmitting one or more repeated RMSI within a first periodicity.Type: ApplicationFiled: May 23, 2023Publication date: September 28, 2023Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Zhipeng LIN, Pål FRENGER, Asbjörn GRÖVLEN
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Patent number: 11696217Abstract: A method, network device and terminal device for providing remaining minimum system information (RMSI) in a wireless network. A method comprises determining whether a SS/PBCH block in the SS burst set configures the RMSI. In response to that the SS/PBCH block configures the RMSI, transmitting one or more repeated RMSI within a first periodicity.Type: GrantFiled: February 26, 2021Date of Patent: July 4, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Zhipeng Lin, Pål Frenger, Asbjörn Grövlen
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Publication number: 20230096520Abstract: Methods, a base station, and a terminal device for two-step random access procedure . The base station transmits a first message indicating a subcarrier spacing (SCS) of a physical uplink shared channel (PUSCH) which is to be used for a second message in two-step random access procedure, through an air interface. The SCS of the PUSCH is same as an SCS used for message 3 in four-step random access procedure. The base station receives the second message based on the SCS of the PUSCH through the air interface in two-step random access procedure.Type: ApplicationFiled: August 16, 2019Publication date: March 30, 2023Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Zhipeng LIN, Robert Mark HARRISON, Asbjörn GRÖVLEN
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Publication number: 20230056055Abstract: A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.Type: ApplicationFiled: October 20, 2022Publication date: February 23, 2023Inventors: Jianwei Zhang, Stefan Parkvall, Fredrik Ovesjö, Zhipeng Lin, Jingya Li, Xingqin Lin, Jung-Fu Cheng, Robert Baldemair, Asbjörn Grövlen, Mattias Frenne
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Publication number: 20230041263Abstract: A method may be provided to operate a wireless terminal in communication with a network node. The method may include receiving a Physical Downlink Control Channel, PDCCH, order from the network node. The PDCCH order may include an identification for a Random Access CHannel RACH occasion to be used for a RACH message 1 preamble transmission. Moreover, the identification may include a first index that indicates a set of RACH occasions and a second index that indicates the RACH occasion associated with the set. The method may also include transmitting a Message 1 preamble to the network node using the RACH occasion responsive to the PDCCH order.Type: ApplicationFiled: October 18, 2022Publication date: February 9, 2023Inventors: Jingya LI, Johan AXNÄS, Asbjörn GRÖVLEN, Naga Vishnu Kanth IRUKULAPATI, Xingqin LIN, Hongxia ZHAO
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Patent number: 11569950Abstract: The present disclosure relates to a first radio node configured for orthogonal frequency division multiplexing (OFDM), comprising a receiver, a transmitter, a processor and a memory storing instructions executable by the processor for causing the transmitter in a first mode of operation with a first subcarrier spacing f1: to transmit a sequence of prefixed OFDM symbols, and in a second mode of operation with a second subcarrier spacing f2: to transmit a sequence of prefixed OFDM symbols, wherein the sequence of transmitted OFDM symbols is aligned with a predefined repeating radio frame, which is common to both the first and second modes of operation, or with an integer multiple of the predefined repeating radio frame; and the first and second subcarrier spacings are related by an integer factor, f1/f2=p or f1/f2=1/p, with p?1 integer.Type: GrantFiled: October 14, 2021Date of Patent: January 31, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Stefan Parkvall, Erik Dahlman, Asbjörn Grövlen
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Patent number: 11523437Abstract: A method may be provided to operate a wireless terminal in communication with a network node. The method may include receiving a Physical Downlink Control Channel, PDCCH, order from the network node. The PDCCH order may include an identification for a Random Access CHannel RACH occasion to be used for a RACH message 1 preamble transmission. Moreover, the identification may include a first index that indicates a set of RACH occasions and a second index that indicates the RACH occasion associated with the set. The method may also include transmitting a Message 1 preamble to the network node using the RACH occasion responsive to the PDCCH order.Type: GrantFiled: July 31, 2018Date of Patent: December 6, 2022Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Jingya Li, Johan Axnäs, Asbjörn Grövlen, Naga Vishnu Kanth Irukulapati, Xingqin Lin, Hongxia Zhao
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Patent number: 11516858Abstract: A system and method for providing time domain allocations in a communication system. In an embodiment, an apparatus operable in a communication system and including processing circuitry is configured to receive an indication of a time domain allocation in downlink control information associated with a radio network temporary identifier (“RNTI”) identifying the apparatus, and employ the time domain allocation associated with the RNTI for transmissions associated with the apparatus. In another embodiment, an apparatus operable in a communication system and including processing circuitry is configured to associate a time domain allocation with a RNTI identifying a user equipment, and provide an indication of the time domain allocation in downlink control information to allow the user equipment to employ the time domain allocation associated with the RNTI for transmissions associated therewith.Type: GrantFiled: February 4, 2019Date of Patent: November 29, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Jianwei Zhang, Stefan Parkvall, Fredrik Ovesjö, Zhipeng Lin, Jingya Li, Xingqin Lin, Jung-Fu Cheng, Robert Baldemair, Asbjörn Grövlen, Mattias Frenne
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Patent number: 11497022Abstract: A method in a network node includes communicating, over a narrowband Internet of Things downlink, a first message to a first wireless device during repetition periods of at least a first time frame and a second time frame of a plurality of time frames of a transmission time of a narrowband physical downlink control channel (NB-PDCCH) or a narrowband physical downlink shared channel (NB-PDSCH). Each time frame of the plurality of time frames includes a repetition period and a gap. The method also includes communicating a second message to a second wireless device during a gap of the first time frame.Type: GrantFiled: February 14, 2019Date of Patent: November 8, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Hazhir Shokri Razaghi, Ansuman Adhikary, Johan Bergman, Yufei Blankenship, Asbjörn Grövlen, Xingqin Lin, Yutao Sui, Yi-Pin Eric Wang
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Patent number: 11483204Abstract: A method, system and apparatus for reducing a number of bits of a physical broadcast channel (PBCH) used to broadcast a configuration of a remaining minimum system information (RMSI) data set as compared with other arrangements are disclosed. According to one aspect, a method in a network node includes determining a remaining minimum system information (RMSI) configuration based on a table of assumptions used to determine a number of bits to represent the RMSI configuration and broadcasting the RMSI configuration using the determined number of bits via a physical broadcast channel (PBCH).Type: GrantFiled: November 15, 2018Date of Patent: October 25, 2022Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Zhipeng Lin, Henrik Sahlin, Asbjörn Grövlen, Jingya Li, Pål Frenger
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Publication number: 20220240254Abstract: A network node determines a first transmission parameter defining first time and/or frequency resources of a downlink control channel and selects between the first transmission parameter and a second transmission parameter to identify a receiver configuration for a wireless device. The second transmission parameter defines second time and/or frequency resources of the downlink control channel that are different from the first time and/or frequency resources. The network node transmits a first signal to the wireless device according to the first transmission parameter. The first signal comprises the second transmission parameter and a configuration indication indicating the receiver configuration selected by the network node for the wireless device. The network node transmits one or more second signals to the wireless device in accordance with the receiver configuration identified for the wireless device. The wireless device receives the first signal and the one or more second signals accordingly.Type: ApplicationFiled: April 19, 2022Publication date: July 28, 2022Inventors: Andres Reial, Pål Frenger, Asbjörn Grövlen, Jingya Li
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Patent number: 11368985Abstract: An example method in a user equipment comprises generating a random access preamble signal and transmitting the random access preamble signal. This generating of the random access preamble signal comprises generating a random access preamble signal comprising two or more consecutive preamble symbol groups, each preamble symbol group comprising a cyclic prefix portion and a plurality of identical symbols occupying a single subcarrier of the random access preamble signal. The single subcarrier for at least one of the preamble symbol groups corresponds to a first subcarrier frequency and the single subcarrier for an immediately subsequent one of the preamble symbol groups corresponds to a second subcarrier frequency.Type: GrantFiled: May 1, 2020Date of Patent: June 21, 2022Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Xingqin Lin, Ansuman Adhikary, Asbjörn Grövlen, Dennis Hui, Niklas Johansson, Yutao Sui, Mårten Sundberg, Yi-Pin Eric Wang