公开(公告)号：US10952184B2

公开(公告)日：2021-03-16

申请号：US16932614

申请日：2020-07-17

Applicant: KYOCERA Corporation

Inventor： Masato Fujishiro ,  Yushi Nagasaka ,  Henry Chang

IPC: H04W72/04 ,  H04W76/11 ,  H04W16/14

Abstract: A user equipment and method used in a user equipment include receiving from a base station, a message including information indicating a first logical channel associated with one or more first cells, information indicating a second logical channel with one or more second cells, and information associating the first logical channel and the second logical channel with a specific bearer of the user equipment. When transmitting data of the specific bearer, the data it transmitted by using the first logical channel in response to a volume of the data not exceeding a threshold value configured by the base station, and the data is transmitted by using the first logical channel and the second logical channel in response to the volume of the data exceeding the threshold value. A base station transmits the message and configures the threshold.

公开(公告)号：US10939251B2

公开(公告)日：2021-03-02

申请号：US16271391

申请日：2019-02-08

Applicant: KYOCERA CORPORATION

Inventor： Masato Fujishiro ,  Henry Chang

IPC: H04W4/06 ,  H04W72/00 ,  H04W48/16 ,  H04W4/70 ,  H04W4/50 ,  H04W76/11 ,  H04W8/08 ,  H04W68/00 ,  H04W72/04 ,  H04W80/02 ,  H04W88/02

Abstract: A user equipment according to a first aspect is a user equipment for a mobile communication system. The user equipment transmits and receives radio signals within a reduced bandwidth narrower than a system transmission and reception band. The user equipment performs radio communication with a base station by using the transceiver. The base station provides MBMS services via SC-PTM. The user equipment receives first information from the base station. The first information indicates at least one of: a maximum number of repetitions of a physical downlink control channel having a bandwidth equal to or less than the reduced bandwidth and a maximum number of repetitions of a physical downlink shared channel having a bandwidth equal to or less than the reduced bandwidth. The first information is transmitted from the base station by a system information block for the SC-PTM or a multicast control channel for the SC-PTM.

公开(公告)号：US10917890B2

公开(公告)日：2021-02-09

申请号：US16272207

申请日：2019-02-11

Applicant: KYOCERA CORPORATION

Inventor： Hiroyuki Adachi ,  Masato Fujishiro ,  Mayumi Komura ,  Kugo Morita ,  Henry Chang

IPC: H04L12/28 ,  H04W72/04 ,  H04W92/18 ,  H04W4/021 ,  H04W64/00 ,  H04W72/12 ,  H04W72/02

Abstract: A communication device according to one embodiment includes a controller and a transmitter. The controller is configured to identify a zone that is a geographical section where the communication device is located, and select a predetermined transmission resource region from a plurality of transmission resource regions included in one transmission resource pool associated with the identified zone. The transmitter is configured to transmit a direct radio signal to another communication device by using a resource in the predetermined transmission resource region.

公开(公告)号：US10887815B2

公开(公告)日：2021-01-05

申请号：US15213244

申请日：2016-07-18

Applicant: Kyocera Corporation

Inventor： Henry Chang ,  Douglas Dunn

IPC: H04W36/36 ,  H04W36/32 ,  H04W36/00

Abstract: A mobile wireless communication device notifies communication infrastructure that the mobile wireless communication device is traveling at a speed greater than a threshold speed. In response, the network infrastructure instructs the mobile wireless communication device to use a transition procedure to transition between base stations where the transition procedure is different from a handover procedure used by the mobile wireless communication device to change base stations when the speed of the mobile wireless communication device is less than or equal to the threshold speed.

公开(公告)号：US10887789B2

公开(公告)日：2021-01-05

申请号：US16346980

申请日：2017-10-27

Applicant: Kyocera Corporation ,  Henry Chang ,  Masato Fujishiro

Inventor： Henry Chang ,  Masato Fujishiro

IPC: H04W28/02 ,  H04W28/22 ,  H04W36/00 ,  H04W72/04 ,  H04W72/12

Abstract: A base station receives a bitrate query from a first user equipment (UE) device being served by the base station. The bitrate query can be a request for a bitrate increase or decrease. The base station transmits a bitrate recommendation to the first UE device. The bitrate recommendation is to be used for a Voice over Long-Term Evolution (VoLTE) call between the first UE device and a second UE device. In some instances, the first UE device and the second UE device negotiate the bitrate to be used for the VoLTE call, based on the bitrate recommended by the base station. The first and second UE devices implement a bitrate for the VoLTE call and provide feedback to the base station.

公开(公告)号：US10820372B2

公开(公告)日：2020-10-27

申请号：US16185413

申请日：2018-11-09

Applicant: KYOCERA CORPORATION

Inventor： Masato Fujishiro ,  Chiharu Yamazaki ,  Hiroyuki Adachi ,  Henry Chang

IPC: H04W88/04 ,  H04W40/12 ,  H04W36/00 ,  H04L29/08 ,  H04W40/22 ,  H04W76/14 ,  H04W76/11 ,  H04W76/27 ,  H04W8/00 ,  H04W92/18 ,  H04W4/90 ,  H04W80/02

Abstract: A radio terminal (controller) executes one of a first control, a second control, and a third control, based on at least one of a reception level of a radio signal from a predetermined cell and a transmission level of the radio terminal. In the first control, the radio terminal directly transmits uplink information to be transmitted to a predetermined cell to the predetermined cell, and directly receives downlink information to be received by the radio terminal from the predetermined cell. In the second control, the radio terminal transmits the uplink information to the predetermined cell via a relay terminal configured to execute a relay using a proximity-based service, and directly receives the downlink information from the predetermined cell. In the third control, the radio terminal transmits the uplink information to the predetermined cell via the relay terminal, and receives the downlink information from the predetermined cell via the relay terminal.

公开(公告)号：US10736011B2

公开(公告)日：2020-08-04

申请号：US15882765

申请日：2018-01-29

Applicant: KYOCERA CORPORATION

Inventor： Yushi Nagasaka ,  Masato Fujishiro ,  Hiroyuki Adachi ,  Henry Chang

IPC: H04W36/30 ,  H04W28/08 ,  H04W36/00 ,  H04W72/04 ,  H04W48/18 ,  H04W16/14 ,  H04W84/12 ,  H04W88/06

Abstract: A radio terminal according to an embodiment includes a controller having a function of switching data between a wireless wide area network (WWAN) and a wireless local area network (WLAN) based on information configured from the WWAN; and a transmitter configured to transmit, to the WWAN, a WLAN measurement report in response to satisfaction of a predetermined condition, the WLAN measurement report including: a WLAN measurement results; and a WLAN related identifier indicating a WLAN to which the radio terminal has been connected. The predetermined condition includes a condition that the WLAN measurement is configured from the WWAN to the radio terminal.

公开(公告)号：US10721714B2

公开(公告)日：2020-07-21

申请号：US16357535

申请日：2019-03-19

Applicant: KYOCERA Corporation

Inventor： Masato Fujishiro ,  Kugo Morita ,  Henry Chang

IPC: H04W8/08 ,  H04W68/06 ,  H04W76/27 ,  H04W76/28 ,  H04W68/02 ,  H04W68/00 ,  H04W48/18 ,  H04W52/02 ,  H04W88/04

Abstract: A base station according to an embodiment is a base station included in a RAN of a mobile communication system. The base station includes a receiver configured to receive, from a radio terminal in a specific state, a message indicating that the radio terminal has left a RAN paging area, and a transmitter configured to transmit, to a mobility management entity, paging area information related to update of the RAN paging area in response to the reception of the message. The specific state is a state in which an anchor base station in the RAN paging area maintains an S1 connection for the radio terminal and the RAN paging area is configured to the radio terminal.

公开(公告)号：US10582437B2

公开(公告)日：2020-03-03

申请号：US16276486

申请日：2019-02-14

Applicant: KYOCERA Corporation

Inventor： Masato Fujishiro ,  Chiharu Yamazaki ,  Henry Chang

IPC: H04W36/30 ,  H04W16/32 ,  H04W48/12 ,  H04W48/20 ,  H04J11/00 ,  H04W36/00 ,  H04W48/16

Abstract: A user equipment for a mobile communication system, and method and chip thereof, receives a first parameter and a second parameter broadcasted from the current serving cell, and reselects a target cell to be used as a serving cell from among plural cells operated at different frequencies. The first parameter defines a probability for performing reselection of the target cell, and the second parameter is a timer value to be set in a timer started at a timing at which a quality measurement for neighbor cells ends. Reselecting includes, after receiving the first and second parameter, periodically measuring qualities of neighbor cells at timer defined timings, comparing a value corresponding to IMSI of the user equipment with a value corresponding to the first parameter, and reselecting the target cell from among cells having a quality satisfying predetermined quality criteria, based on results of the quality measurement and the comparison.

公开(公告)号：US10536888B2

公开(公告)日：2020-01-14

申请号：US16263820

申请日：2019-01-31

Applicant: KYOCERA Corporation

Inventor： Masato Fujishiro ,  Noriyoshi Fukuta ,  Yushi Nagasaka ,  Henry Chang ,  Hiroyuki Adachi

IPC: H04W36/00 ,  H04W36/16 ,  H04W16/32 ,  H04W48/16 ,  H04W36/24

Abstract: In a communication method, a user equipment receives system information broadcast from a current serving cell of the user equipment and indicating frequencies different from a frequency of the current serving cell, the user equipment receives a paging signal from the current serving cell that is different from the system information and includes a request message requesting the user equipment to perform frequency redistribution in which the user equipment selects a target frequency, and performs the frequency redistribution in response to receiving the paging signal including the request message. Performing the frequency redistribution comprises the user equipment measuring quality of the frequencies included in the system information received from the current serving cell in response to receiving the paging signal including the request message, and selecting the target frequency based on a result of the measuring. The user equipment reselects a serving cell on the selected target frequency.