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公开(公告)号：US11818620B2
公开(公告)日：2023-11-14
申请号：US16471190
申请日：2017-12-19
Applicant: SHARP KABUSHIKI KAISHA , FG Innovation Company Limited
Inventor： Ningjuan Chang , Shohei Yamada , Renmao Liu
CPC classification number: H04W36/18 , H04W36/0058 , H04W36/0072 , H04W36/08 , H04W76/27
Abstract: Provided are a method executed by user equipment (UE), UE, and a base station. The method includes: receiving from the base station a first Radio Resource Control (RRC) message containing a handover command; storing a handover configuration included in the first RRC message; and managing the handover configuration. Before receiving the RRC message containing the handover command, the UE still maintains communication with a source base station before a handover is executed, thus shortening data transmission interruption time.
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公开(公告)号：US11582770B2
公开(公告)日：2023-02-14
申请号：US16644524
申请日：2018-09-07
Applicant: Sharp Kabushiki Kaisha , FG Innovation Company Limited
Inventor： Kazunari Yokomakura , Shohei Yamada , Hidekazu Tsuboi , Hiroki Takahashi
Abstract: The present invention includes a receiver configured to receive first information, the first information including information for configuring whether transform precoding for a physical uplink shared channel is enabled, and a transmitter configured to transmit information indicating a first power headroom level for the physical uplink shared channel with the transform precoding enabled and information indicating a second power headroom level for the physical uplink shared channel with the transform precoding not enabled.
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公开(公告)号：US11483055B2
公开(公告)日：2022-10-25
申请号：US16960339
申请日：2018-12-21
Applicant: Sharp Kabushiki Kaisha , FG Innovation Company Limited
Inventor： Chao Luo , Shohei Yamada , Renmao Liu
Abstract: The present invention provides user equipment and a beam failure recovery method. The beam failure recovery method for user equipment (UE), includes: receiving indication of beam failure instance; accumulating the number of received indications so as to obtain an accumulative value; initiating a beam failure recovery procedure when the accumulative value is greater than a first threshold; and skipping processing the received indication of beam failure instance during the beam failure recovery period. Thus, it is possible to eliminate false beam failures.
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公开(公告)号：US11382165B2
公开(公告)日：2022-07-05
申请号：US16956846
申请日：2018-12-18
Applicant: SHARP KABUSHIKI KAISHA , FG Innovation Company Limited
Inventor： Takako Hori , Shohei Yamada , Hidekazu Tsuboi
Abstract: A terminal apparatus for communicating with one or more base station apparatuses, the terminal apparatus including: a receiver configured to receive an RRC connection reconfiguration message including a DRB configuration from the one or more base station apparatuses; and a processing unit configured to release a PDCP entity, in a case that information indicating that a full configuration is applied is included in the RRC connection reconfiguration message, and that a value of an EPS bearer identity included in the DRB configuration is part of a current configuration of the terminal apparatus, and that the PDCP entity is configured on a DRB corresponding to the EPS bearer identity.
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公开(公告)号：US11375563B2
公开(公告)日：2022-06-28
申请号：US16957706
申请日：2018-12-27
Applicant: SHARP KABUSHIKI KAISHA , FG Innovation Company Limited
Inventor： Takako Hori , Shohei Yamada , Hidekazu Tsuboi
Abstract: A terminal apparatus for communicating with one or more base station apparatuses, the terminal apparatus including: a receiver configured to receive an RRC reconfiguration message including a DRB configuration from the one or more base station apparatuses, the DRB configuration including a DRB identity and an EPS bearer identity; and a processing unit configured to associate a DRB established with the EPS identity in a case that the DRB identity is not part of a current configuration of the terminal apparatus, the terminal apparatus is configured with EN-DC, and the DRB was configured for the EPS bearer identity before the RRC reconfiguration message is received.
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公开(公告)号：US11317400B2
公开(公告)日：2022-04-26
申请号：US17042905
申请日：2019-03-29
Applicant: SHARP KABUSHIKI KAISHA , FG Innovation Company Limited
Inventor： Kazunari Yokomakura , Shohei Yamada , Masayuki Hoshino , Hidekazu Tsuboi , Hiroki Takahashi
Abstract: To efficiently transmit a sounding reference signal. One or more downlink BWPs are configured in a serving cell, one or more uplink BWPs are configured in a serving cell, each BWP of the one or more downlink BWPs is identified by a downlink BWP index, each BWP of the one or more uplink BWPs is identified by the uplink BWP index, and in a case that one of the one or more downlink BWPs configured is activated in a serving cell, one of the one or more uplink BWPs configured is activated in a serving cell, and an SRS transmission in one or more serving cells of a plurality of the serving cells is triggered, the SRS for the BWP indicated by the uplink BWP index activated in the serving cell activated is transmitted.
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公开(公告)号：US11184899B2
公开(公告)日：2021-11-23
申请号：US16620632
申请日：2018-06-14
Applicant: Sharp Kabushiki Kaisha , FG Innovation Company Limited
Inventor： Hiroki Takahashi , Shohei Yamada , Hidekazu Tsuboi , Kazunari Yokomakura
Abstract: A terminal apparatus (1, 1A, 1B) includes: a receiver (10) configured to receive preamble index information on a physical downlink control channel; and a transmitter (10) configured to, in a case where the preamble index information indicates a prescribed value, select a block from one or more blocks to transmit a random access preamble based on the block selected, and in a case where the preamble index information indicates a value other than the prescribed value, transmit the random access preamble corresponding to a preamble index indicated by the preamble index information, wherein the block includes four OFDM symbols to which at least a synchronization signal and a physical broadcast channel are mapped.
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公开(公告)号：US11165608B2
公开(公告)日：2021-11-02
申请号：US16643603
申请日：2018-09-07
Applicant: Sharp Kabushiki Kaisha , FG Innovation Company Limited
Inventor： Kazunari Yokomakura , Shohei Yamada , Hidekazu Tsuboi , Hiroki Takahashi
Abstract: The present invention includes a receiver configured to receive a physical downlink control channel, and a transmitter configured to transmit a physical uplink control channel, wherein the receiver receives downlink control information carried on the physical downlink control channel, a downlink control information format of the downlink control information is used for scheduling of a physical downlink shared channel, the downlink control information format includes information indicating a resource of a sounding reference signal, and the physical uplink control channel is transmitted, based on the information indicating the resource of the sounding reference signal.
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公开(公告)号：US11095413B2
公开(公告)日：2021-08-17
申请号：US16343925
申请日：2017-11-02
Applicant: SHARP KABUSHIKI KAISHA , FG Innovation Company Limited , Fangying Xiao
Inventor： Fangying Xiao , Shohei Yamada , Renmao Liu
Abstract: The present disclosure provides a method for obtaining supplementary system information, and a corresponding user equipment and a base station. A method in the user equipment according to the present invention comprises: sending a leader sequence to a base station to request supplementary system information; and receiving a reply message from the base station in response to sending of the leader sequence.
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公开(公告)号：US11044061B2
公开(公告)日：2021-06-22
申请号：US16495857
申请日：2018-03-23
Applicant: Sharp Kabushiki Kaisha , FG Innovation Company Limited
Inventor： Hiroki Takahashi , Shohei Yamada , Hidekazu Tsuboi , Kazunari Yokomakura
Abstract: A terminal apparatus includes a monitor unit configured to monitor qualities of a plurality of links, each being associated with at least one reference signal, a controller configured to send an indication to a higher layer in a case that qualities of a prescribed number of links among the qualities of the plurality of links are worse than a threshold, and a higher layer processing unit configured to perform a recovery request to a base station apparatus in a case of receiving a prescribed number of the indications, and end the recovery request in a case of receiving a prescribed physical downlink control channel.
