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公开(公告)号:US10993268B2
公开(公告)日:2021-04-27
申请号:US16451549
申请日:2019-06-25
Inventor: Michael Einhaus , Joachim Loehr , Hidetoshi Suzuki , Li Wang
IPC: H04W74/08 , H04W52/02 , H04L5/00 , H04L27/00 , H04J13/00 , H04W52/00 , H04W72/02 , H04W72/04 , H04W74/00 , H04W16/14
Abstract: A user equipment includes circuitry which selects a random access preamble sequence, and a transmitter which transmits the random access preamble sequence to a base station in a frequency bandwidth of an unlicensed band, and performs at least one of a first operation and a second operation. In the first operation, the circuitry selects a first sequence as the random access preamble sequence, the first sequence having a length longer than a length of a random preamble sequence used for a licensed band, and the transmitter transmits the first sequence in the frequency bandwidth of the unlicensed band. In the second operation, the circuitry selects a second sequence as the random access preamble sequence, the second sequence having a length equal to the length of a random preamble sequence used for the licensed band, and the transmitter transmits the second sequence with repetitions in the frequency bandwidth of the unlicensed band.
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公开(公告)号:US20210051555A1
公开(公告)日:2021-02-18
申请号:US17086048
申请日:2020-10-30
Inventor: Prateek Basu Mallick , Joachim Loehr
Abstract: The invention relates to an improved handover procedure for a mobile terminal. Under control of the target base station, the mobile terminal is to perform a handoff to a target base station, wherein it is to be configured for communication with the target base station via a target radio cell comprising a downlink carrier and an uplink carrier. The mobile terminal receives a handoff command message for the handoff to the target base station including a handoff execution condition as trigger for executing handoff to the target base station. Then, the mobile terminal determines, based on the received handoff execution condition, whether or not the mobile terminal is to trigger execution of the handoff to the target base station. In case the mobile terminal determines that it is to trigger execution of the handoff to the target base station, the mobile terminal executes the handoff to the target base station.
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公开(公告)号:US10863552B2
公开(公告)日:2020-12-08
申请号:US16692208
申请日:2019-11-22
Inventor: Li Wang , Hidetoshi Suzuki , Joachim Loehr , Michael Einhaus , Lilei Wang , Masayuki Hoshino
Abstract: Provided are a user equipment (UE), an eNode B (eNB) and a wireless communication method for Licensed-Assisted Access (LAA). A UE for LAA according to one embodiment can comprise: a first circuit operative to perform a first listen-before-talk (LBT) in a system bandwidth; a second circuit operative to perform a second LBT in an allocated bandwidth; and a transmitter operative to transmit a signal in the allocated bandwidth if the first LBT is unsuccessful and the second LBT is successful.
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公开(公告)号:US10834146B2
公开(公告)日:2020-11-10
申请号:US16125018
申请日:2018-09-07
Inventor: Takako Hori , Prateek Basu Mallick , Hidetoshi Suzuki , Ayako Horiuchi , Joachim Loehr
Abstract: A UE includes an EUTRA-CMR reception unit that receives a codec mode request (EUTRA-CMR) including a codec mode that is determined by an eNB in accordance with a radio condition of the UE, a mode switching notification unit that notifies an encoder of switching to the codec mode included in the received codec mode request; and a mode switching acknowledgement unit that transmits a response message to the eNB when confirming that the encoder switches the codec mode.
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公开(公告)号:US10827502B2
公开(公告)日:2020-11-03
申请号:US16088004
申请日:2016-03-25
Inventor: Prateek Basu Mallick , Joachim Loehr , Hidetoshi Suzuki , Lilei Wang
Abstract: The invention relates to an improved radio resource allocation performed by a vehicular mobile terminal. The vehicular mobile terminal determines whether to determine radio resources based on the location of the vehicular mobile terminal or not, based on information received from an entity of the communication system. In case the radio resources are to be selected based on the location of the vehicular mobile terminal, the vehicular mobile terminal determines the location of the vehicular mobile terminal, and determines radio resources for communication with at least the second mobile terminal, based on the determined location of the vehicular mobile terminal.
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公开(公告)号:US10757030B2
公开(公告)日:2020-08-25
申请号:US16224519
申请日:2018-12-18
Inventor: Joachim Loehr , Prateek Basu Mallick , Takako Hori
IPC: H04W4/00 , H04L12/823 , G06F21/43 , H04L5/00 , H04L29/08 , H04W4/40 , H04W4/70 , H04L12/801 , H04L12/851 , H04W28/02 , H04W72/10 , H04W4/10 , H04W4/80
Abstract: The present disclosure relates to a transmitting device for transmitting vehicular data via a sidelink interface to one or more receiving devices. The transmitting device performs autonomous radio resource allocation for transmitting the vehicular data via the sidelink interface. An application layer generates the vehicular data and forwards the vehicular data together with a priority indication and one or more quality of service parameters to a transmission layer responsible for transmission of the vehicular data via the sidelink interface. The transmission layer performs autonomous radio resource allocation based on the received priority indication and the one or more quality of service parameters. The transmission layer transmits the vehicular data via the sidelink interface to the one or more receiving devices according to the performed autonomous radio resource allocation.
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公开(公告)号:US10750474B2
公开(公告)日:2020-08-18
申请号:US16514448
申请日:2019-07-17
Inventor: Prateek Basu Mallick , Joachim Loehr , Hidetoshi Suzuki
Abstract: The present disclosure relates to a method for paging coverage extension UEs in a cell controlled by a radio base station. At least one CE-specific paging possibility is defined for paging CE-UEs. The CE-UEs in the cell regularly monitor the at least one CE-specific paging possibility. When the radio base station determines to page all the user equipments in the cell, it pages the CE user equipments in the cell at the CE-specific paging possibility, using a coverage extension technique. The disclosure also relates to a method for paging a CE-UE, which performs radio measurements by a CE-capable user equipment to determine whether coverage extension is necessary. The radio base station is informed about whether the CE-capable user equipment needs coverage extension and then pages the CE-UEs applying or not applying a CE technique depending on whether coverage extension is necessary.
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公开(公告)号:US10715281B2
公开(公告)日:2020-07-14
申请号:US16090464
申请日:2017-03-31
IPC: H04B7/00 , H04L1/18 , H04W52/02 , H04W72/12 , H04W4/70 , H04W76/28 , H04W76/27 , H04L5/00 , H04W72/04 , H04W80/02
Abstract: The present disclosure relates to transmitting data over a physical uplink shared channel in a wireless communication system by using an asynchronous hybrid automatic repeat request, HARQ. An exemplary apparatus comprises a first timer configured to start upon uplink data transmission and stop after a first predetermined time; a second timer configured to start upon stop of the first timer and to stop after a second predetermined time; a receiver for receiving downlink control information including a positive acknowledgement for uplink new data transmission or retransmission, the receiver being configured to perform the receiving only when the first timer is stopped and the second timer is running, wherein the second timer is further configured to stop upon receiving the positive acknowledgement. Moreover, an apparatus for receiving the data and transmitting the control channel is provided as well as the corresponding transmitting and receiving method.
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公开(公告)号:US10548183B2
公开(公告)日:2020-01-28
申请号:US16554380
申请日:2019-08-28
Inventor: Joachim Loehr , Prateek Basu Mallick , Hidetoshi Suzuki
Abstract: The present disclosure relates to a method for operating a Discontinuous Reception, DRX, function at a user equipment. The UE is configured with at least one licensed cell and at least one unlicensed cell and operates the DRX function. The UE receives, from a radio base station, a DRX-active instruction to be in DRX Active Time at least on the unlicensed cell until receiving the next downlink control information related to a downlink data transmission to be received via the unlicensed cell. Correspondingly, in response to the received DRX-active instruction, the UE is in DRX Active Time at least on the unlicensed cell, comprising continuously monitoring a downlink control channel for downlink control information.
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公开(公告)号:US10536890B2
公开(公告)日:2020-01-14
申请号:US16218244
申请日:2018-12-12
Inventor: Prateek Basu Mallick , Joachim Loehr
Abstract: The invention relates to an improved handover procedure for a mobile terminal. Under control of the target base station, the mobile terminal is to perform a handoff to a target base station, wherein it is to be configured for communication with the target base station via a target radio cell comprising a downlink carrier and an uplink carrier. The mobile terminal receives a handoff command message for the handoff to the target base station including a handoff execution condition as trigger for executing handoff to the target base station. Then, the mobile terminal determines, based on the received handoff execution condition, whether or not the mobile terminal is to trigger execution of the handoff to the target base station. In case the mobile terminal determines that it is to trigger execution of the handoff to the target base station, the mobile terminal executes the handoff to the target base station.
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