Patents by Inventor Jung-Fu Cheng
Jung-Fu Cheng 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: 11888781Abstract: There is disclosed a method of operating a transmitting node in a millimeter-wave communication network. The method includes transmitting communication signaling in a transmission timing structure, the communication signaling including leading reference signaling in a leading time interval at the beginning of the transmission timing structure and including trailing reference signaling in a trailing time interval at the end of the timing structure. The leading reference signaling starts with a first reference signaling time-domain sequence, and the trailing reference signaling ending with the first reference time-domain signaling sequence. The disclosure also pertains to related devices and methods.Type: GrantFiled: January 5, 2023Date of Patent: January 30, 2024Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Robert Baldemair, Mehrnaz Afshang, Rikke Apelfrojd, Jung-Fu Cheng, Ning He, Dennis Hui, Stefan Parkvall
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Publication number: 20240008003Abstract: There is disclosed a method of operating a user equipment in a radio access network, the user equipment being configured with a transmission resource pool. The transmission resource pool includes resources for transmission of response control signaling by the user equipment. The method includes transmitting response control signaling utilising a resource structure, the resource structure being selected from the transmission resource pool based on a signaling characteristic of characterising signaling, the resource structure further being selected based on selection control information included in a received selection control message. The disclosure also pertains to related devices and methods.Type: ApplicationFiled: September 15, 2023Publication date: January 4, 2024Inventors: Robert BALDEMAIR, Daniel CHEN LARSSON, Jung-Fu CHENG, Havish KOORAPATY, Stefan PARKVALL
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Patent number: 11855814Abstract: According to some embodiments, a method performed by a wireless device comprises receiving a wireless signal Rk over all subcarriers allocated to the wireless device. The signal Rk comprises a phase tracking reference signal (PT-RS) on a subset of subcarriers allocated to the wireless device and the subset comprises at least one non-contiguous subcarrier. The method further comprises computing a de-inter-carrier interference (ICI) filter based on the PT-RS and a channel estimate using a convolutional matrix CR of the received signal Rk and applying the de-ICI filter to the received signal Rk to generate a de-ICI filtered signal.Type: GrantFiled: August 7, 2021Date of Patent: December 26, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Dennis Hui, Mehrnaz Afshang, Jung-Fu Cheng, Stephen Grant
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Patent number: 11855785Abstract: A technique for performing a multi-layer transmission from a transmitting station to a receiving station on a radio frequency is described. The multi-layer transmission comprises multiple layers having different robustnesses (704, 706) on the radio frequency. As to a method aspect of the technique, first data of a first hybrid automatic repeat request, HARQ, process is transmitted on a first layer of the multi-layer transmission simultaneously with second data of a second HARQ process on a second layer of the multi-layer transmission.Type: GrantFiled: February 14, 2020Date of Patent: December 26, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Leif Wilhelmsson, Rocco Di Taranto, Miguel Lopez, Jung-Fu Cheng
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Publication number: 20230413317Abstract: Embodiments herein relate to a method performed by a scheduling node for scheduling an uplink transmission from a wireless device to the scheduling node, which wireless device is connected to a Primary Cell, Pcell, of the scheduling node in a licensed or unlicensed frequency band, and wherein the wireless device is also connected to at least one Secondary Cell, SCell, in an unlicensed frequency band. The scheduling node determines at least one Listen Before Talk, LBT, parameter associated with an LBT procedure and informs the wireless device about the determined at least one LBT parameter in a scheduling grant of the uplink transmission.Type: ApplicationFiled: June 29, 2023Publication date: December 21, 2023Inventors: Amitav Mukherjee, Jung-Fu Cheng, Sorour Falahati, Laetitia Falconetti, Havish Koorapaty, Daniel Larsson
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Publication number: 20230413269Abstract: There is disclosed a method of operating a transmitting radio node in a wireless communication network. The method includes transmitting first control signaling in a control region, the first control signaling having at least a first signaling characteristic from a set of signaling characteristics in which the signaling characteristics of the set of signaling characteristics are associated to the control region. The disclosure also pertains to related devices and methods.Type: ApplicationFiled: August 28, 2023Publication date: December 21, 2023Inventors: Jung-Fu CHENG, Dennis HUI, Mehrnaz AFSHANG
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Publication number: 20230403119Abstract: A network node is configured to communicate with a wireless device. The network node includes a radio interface and processing circuitry configured to transmit a configuration of a set of reference signals via RRC signaling to the wireless device. The radio interface and processing circuitry are further configured to transmit a downlink control information, DCI, that triggers the set of reference signals in multiple slots to the wireless device. In some embodiments the DCI has a field which indicates the number of slots in which the DCI should trigger the set of reference signals. In some further embodiments the RRC signaling configures the set of reference signals in a number of slots. A method for a network node, a wireless device and a method for a wireless device are also provided.Type: ApplicationFiled: October 12, 2021Publication date: December 14, 2023Inventors: Stephen GRANT, Reem KARAKI, Jung-Fu CHENG
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Patent number: 11843938Abstract: Embodiments herein relate to a method performed by a first communication node operating in a wireless communications network. The first communication node adjusts a value of a Contention Window, CW, from a first value to a second value, the second value being a higher value than the first value, wherein adjusting the value is based on: one or more feedback timers having expired at a time of performing a sensing procedure in the absence of: a) a received uplink, UL, grant from a second communication node, or b) a downlink feedback from the second communication node for an Autonomous Uplink, AUL, transmission from the first communication node. Following adjusting the value, the first communication node initiates a sensing procedure performed prior to a transmission of an UL burst to the second communication node, wherein the sensing procedure uses the adjusted value of the CW.Type: GrantFiled: July 18, 2022Date of Patent: December 12, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Reem Karaki, Jung-Fu Cheng, Havish Koorapaty
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Publication number: 20230396468Abstract: A method, system and apparatus are disclosed for enabling inter carrier interference compensation for interleaved mapping from virtual to physical resource blocks. In one embodiment, a network node is configured to determine to configure the first signal to be located at a subcarrier except at an edge sub-carrier of a resource block, RB; transmit the configuration of the first signal to the WD; and receive a physical uplink shared channel, PUSCH, signaling and the first signal from the WD based at least in part on the determined configuration. In one embodiment, a WD is configured to perform a de-inter-carrier-interference (de-ICI) filter estimation on a first received signal and a second received signal; apply a de-ICI filter to a third received signal, the de-ICI filter being based on the de-ICI filter estimation; and after the application of the de-ICI filter, de-interleaved map and demodulate the third received signal.Type: ApplicationFiled: October 15, 2021Publication date: December 7, 2023Inventors: Jung-Fu CHENG, Mehrnaz AFSHANG, Dennis HUI, Stephen GRANT
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Patent number: 11838900Abstract: A method in a communication device for managing uplink transmissions from the communication device to a network node. The method includes obtaining a timing advance value, the timing advance value indicating a time period in which the communication device shall advance a first uplink subframe transmission to the network node, obtaining information about a location of a gap within the first uplink subframe, the gap having a predefined duration, the location of the gap occurring after the time period indicated in the timing advance value, and performing the first uplink subframe transmission after the predefined duration.Type: GrantFiled: June 3, 2022Date of Patent: December 5, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Havish Koorapaty, Jung-Fu Cheng, Sorour Falahati, Amitav Mukherjee
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Patent number: 11832234Abstract: According to some embodiments, a method in a network node comprises determining a first uplink/downlink scheduling pattern for a first plurality of consecutive subframes; transmitting the first uplink/downlink scheduling pattern to a wireless device; transmitting at least one subframe to the wireless device according to the first uplink/downlink scheduling pattern; determining a second uplink/downlink scheduling pattern for a second plurality of consecutive subframes, wherein the first plurality of consecutive subframes and the second plurality of consecutive subframes share at least one subframe; and transmitting the second uplink/downlink scheduling pattern to the wireless device.Type: GrantFiled: March 3, 2021Date of Patent: November 28, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Daniel Larsson, Jung-Fu Cheng, Sorour Falahati, Havish Koorapaty
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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: 11824691Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes receiving first signaling and second signaling, wherein the first signaling includes first Phase Tracking Reference Signaling, PT-RS, on a first set of subcarriers, and the second signaling includes second PT-RS on a second set of subcarriers, wherein the first set of subcarriers is non-overlapping with the second set of subcarriers, wherein receiving the first signaling is based on estimating a phase noise for the first signaling based on the first PT-RS and the second PT-RS. The disclosure also pertains to related devices and methods.Type: GrantFiled: March 25, 2021Date of Patent: November 21, 2023Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Jung-Fu Cheng, Mehrnaz Afshang, Yuhang Liu, Stephen Grant
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Patent number: 11825496Abstract: Embodiments include methods, performed by a user equipment (UE), for transmitting information on an uplink (UL) shared channel within a cell of a radio access network. Such embodiments include receiving, from a network node serving the cell, a configured uplink grant of resources for transmitting information on the UL shared channel. The uplink grant can indicate particular timeslots during which transmission on the UL shared channel is allowed and can include: a periodicity parameter indicating an uplink periodicity for configured resources, and an allowance parameter indicating a number of timeslots, within each uplink periodicity, during which transmission on the UL shared channel is allowed. Such embodiments also include transmitting information on the UL shared channel during at least one of the particular timeslots indicated by the uplink grant. Embodiments also include complementary methods performed by a network node, and UEs and network nodes configured to perform such methods.Type: GrantFiled: August 31, 2020Date of Patent: November 21, 2023Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Reem Karaki, Marco Belleschi, Jung-Fu Cheng
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Patent number: 11824803Abstract: There is disclosed a method of operating a receiving radio node in a wireless communication network. The method includes receiving first signaling and second signaling, the first signaling including first Phase Tracking Reference Signaling, PT-RS, on a first set of subcarriers, and the second signaling including second PT-RS on a second set of subcarriers, the first set of subcarriers being non-overlapping with the second set of subcarriers. The disclosure also pertains to related devices and methods.Type: GrantFiled: March 25, 2021Date of Patent: November 21, 2023Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Jung-Fu Cheng, Stephen Grant, Mehrnaz Afshang, Yuhang Liu
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Patent number: 11818722Abstract: There is disclosed a method of operating a user equipment in a radio access network. The method includes transmitting acknowledgement signaling based on a feedback configuration, the feedback configuration being selected from a set of configured acknowledgement configurations. The disclosure also pertains to related methods and devices.Type: GrantFiled: January 7, 2021Date of Patent: November 14, 2023Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Robert Baldemair, Daniel Chen Larsson, Jung-Fu Cheng, Stefan Parkvall
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Publication number: 20230362967Abstract: According to certain embodiments, a user equipment, UE, is operable for multiple sub-carrier spacing values. The UE comprises memory operable to store instructions and processing circuitry operable to execute the instructions, whereby the UE is operable to determine one of a plurality of time-domain resource allocation tables based on first information received from a network node. The first information comprises a Radio Network Temporary Identifier, RNTI. The UE is operable to determine a time-domain resource allocated to the UE for transmission or reception of a wireless signal based on the determined one of the plurality of time-domain resource allocation tables and second information received from the network node. The second information comprises a time-domain resource allocation field value received in downlink control information, DCI. The UE is further operable to transmit or receive the wireless signal using the determined time-domain resource.Type: ApplicationFiled: May 18, 2023Publication date: November 9, 2023Inventors: Robert BALDEMAIR, Jung-Fu CHENG, Daniel LARSSON, Ravikiran NORY, Stefan PARKVALL
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Patent number: 11811536Abstract: There is disclosed a receiving radio node in a wireless communication network, the method including transmitting feedback signaling based on a received control information message scheduling multiple separate data transmission for reception by the receiving radio node. The disclosure also pertains to related devices and methods.Type: GrantFiled: August 7, 2020Date of Patent: November 7, 2023Assignee: Telefonaktiebolaget LM Ericsson (Publ)Inventors: Reem Karaki, Jung-Fu Cheng, Yuhang Liu
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Patent number: 11812368Abstract: A method in a wireless device (110) comprises obtaining (1004) information related to a signal transmission configuration for autonomous uplink transmission by the wireless device, the information comprising: a set of pre-allocated resources for use by the wireless device in performing autonomous uplink transmission on at least one secondary cell established between the wireless device and a network node (115); and a periodicity associated with the set of pre-allocated resources. The method comprises performing (1008) autonomous uplink transmission according to the obtained information related to the signal transmission configuration.Type: GrantFiled: June 7, 2022Date of Patent: November 7, 2023Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Reem Karaki, Jung-Fu Cheng, Havish Koorapaty, Amitav Mukherjee, Evanny Obregon
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Publication number: 20230354423Abstract: A method of operating a wireless communication device comprises identifying a first start position for performing uplink (UL) transmission in unlicensed spectrum during a first transmission time interval, performing UL transmission in the first transmission time interval (TTI) according to the first start position, identifying a second start position for performing UL transmission in unlicensed spectrum during a second TTI, wherein the first and second start positions correspond to different symbol offsets within the respective first and second TTIs, and performing UL transmission in the second TTI according to the second start position.Type: ApplicationFiled: July 11, 2023Publication date: November 2, 2023Inventors: Yu Yang, Reem Karaki, Havish Koorapaty, Jung-Fu Cheng, Sorour Falahati