公开(公告)号：US10887789B2

公开(公告)日：2021-01-05

申请号：US16346980

申请日：2017-10-27

申请人： Kyocera Corporation ,  Henry Chang ,  Masato Fujishiro

发明人： Henry Chang ,  Masato Fujishiro

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

摘要： 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：US12114388B2

公开(公告)日：2024-10-08

申请号：US17435618

申请日：2020-03-25

申请人： Kyocera Corporation ,  Henry Chang ,  Masato Fujishiro

发明人： Henry Chang ,  Masato Fujishiro

IPC分类号： H04W76/27 ,  H04W36/00 ,  H04W48/06 ,  H04W76/18

CPC分类号： H04W76/27 ,  H04W36/0016 ,  H04W36/00835 ,  H04W48/06 ,  H04W76/18

摘要： A mobile wireless communication user equipment device (mobile device) logs unsuccessful attempts to resume to the connected (e.g., RRC_CONNECTED) state from the inactive (e.g., RRC_INACTIVE) state. The mobile device maintains the resume failure log that includes the events and parameters related to the failed attempt to resume to the active state, reports the resume failure log availability, and provides the resume failure log when requested by a base station.

公开(公告)号：US11508245B2

公开(公告)日：2022-11-22

申请号：US16642534

申请日：2018-09-19

申请人： Kyocera Corporation ,  Henry Chang ,  Masato Fujishiro

发明人： Henry Chang ,  Masato Fujishiro

IPC分类号： G08G5/00 ,  H04W4/90 ,  H04B7/185

摘要： A base station allocates unmanned aerial vehicles (UAVs) preambles for use by UAV user equipment (UE) devices that are different from terrestrial preambles allocated for terrestrial UE devices. The UAV preambles can be allocated to different subscription levels, such that each UAV UE device can only use UAV preambles associated with the UAV UE device's subscription level. The UAV UE device transmits random access request message using the selected UAV preamble and the base station responds with a random access response message indicating whether access is granted to the UAV UE device. The base station can dynamically manage access to the base station by limiting the subscription levels that are associated with the UAV preambles.

公开(公告)号：US11337105B2

公开(公告)日：2022-05-17

申请号：US16477322

申请日：2018-02-02

申请人： Kyocera Corporation ,  Henry Chang ,  Masato Fujishiro

发明人： Henry Chang ,  Masato Fujishiro

IPC分类号： H04W72/08 ,  H04W52/26 ,  H04W28/02 ,  H04W28/22 ,  H04L5/00 ,  H04W40/00 ,  H04W28/10 ,  H04W72/12 ,  H04W48/14 ,  H04W88/02 ,  H04W36/00

摘要： A first user equipment (UE) device receives a configuration for a first timer from a base station that is serving the UE device. The first UE device also receives a recommended bitrate from the base station. The recommended bitrate is to be used for a Voice over Long-Term Evolution (VoLTE) call or a Video over Long-Term Evolution (ViLTE) call between the first UE device and a second UE device. The first UE device activates the first timer in accordance with the configuration. The first UE device is prohibited from transmitting a bitrate query to the base station while the first timer is running. Upon receiving a recommended bitrate that is below a Guaranteed Bit Rate for the call between the first UE device and the second UE device, the first UE device stops the first timer and transmits a bitrate query to the base station.

公开(公告)号：US11044763B2

公开(公告)日：2021-06-22

申请号：US16619835

申请日：2018-06-22

申请人： Henry Chang ,  Masato Fujishiro ,  Kyocera Corporation

发明人： Henry Chang ,  Masato Fujishiro

IPC分类号： H04W4/00 ,  H04W74/08 ,  H04W76/10 ,  H04B7/185

摘要： An unmanned aerial vehicle (UAV) receives a set of Random Access preambles, determines its UAV status, and selects a Random Access preamble from the set of Random Access preambles. In some cases, the set of Random Access preambles are allocated for use by UAVs and are common to a plurality of neighboring cells. The UAV transmits the selected Random Access preamble to multiple neighboring cells. One of the neighboring cells that received the selected Random Access preamble transmits a Random Access Response to the UAV. The UAV determines which cell sent the Random Access Response, reselects to the cell that sent the Random Access Response, and transmits a Radio Resource Control (RRC) Connection Establishment Request to the reselected cell. Upon completion of a Random Access Channel (RACH) procedure, the reselected cell becomes the serving cell for the UAV.

公开(公告)号：US12048059B2

公开(公告)日：2024-07-23

申请号：US17289668

申请日：2019-11-01

申请人： Kyocera Corporation ,  Amit Kalhan ,  Henry Chang

发明人： Amit Kalhan ,  Henry Chang

IPC分类号： H04W8/00 ,  H04L1/00 ,  H04L1/1867 ,  H04W4/46 ,  H04W84/18

CPC分类号： H04W8/005 ,  H04L1/0003 ,  H04L1/1896 ,  H04W4/46 ,  H04W84/18

摘要： The methods, devices, and systems discussed herein describe a wireless communication device transmitting a discovery channel message, at least a portion of which, is embedded in the control channel of a groupcast transmission. In some examples, the discovery channel message is transmitted using a pre-defined, fixed transmit power and modulation and coding scheme (MCS), which facilitates the receiving wireless communication devices' ability to decode the control channel, including the embedded discovery channel message. If a receiving wireless communication device can decode the discovery channel message above a configured threshold (e.g., a received power threshold and/or a signal-to-noise ratio (SNR)) but is unable to decode the data portion of the groupcast transmission, which was intended for the receiving wireless communication device, then the receiving wireless communication device will transmit a negative-acknowledgement (NACK) to the wireless communication device that transmitted the groupcast transmission.

公开(公告)号：US11153030B2

公开(公告)日：2021-10-19

申请号：US16328643

申请日：2017-09-11

申请人： Kyocera Corporation ,  Amit Kalhan ,  Henry Chang

发明人： Amit Kalhan ,  Henry Chang

IPC分类号： H04L1/00 ,  H04H20/42 ,  H04L27/00 ,  H04W24/04 ,  H04L27/34

摘要： A base station broadcasts information to machine type communication (MTC) devices in the coverage area of the base station using multiple transmissions with layered modulation. Each transmission includes a different sequence of bits representing the information. A MTC device receiving the signals for the transmissions at a sufficiently high quality can recover the information by using a high modulation order on one of the transmissions. A MTC device receiving the signals of the transmissions at less than the sufficient quality can receive the information by applying a lower modulation order to multiple transmissions.

公开(公告)号：US20150282206A1

公开(公告)日：2015-10-01

申请号：US14433288

申请日：2013-10-08

申请人： Amit KALHAN ,  Henry CHANG ,  David COMSTOCK ,  Douglas DUNN ,  KYOCERA CORPORATION

发明人： Amit Kalhan ,  Henry Chang ,  David Comstock ,  Douglas Dunn

IPC分类号： H04W72/12 ,  H04L5/00 ,  H04W72/04

CPC分类号： H04W72/1278 ,  H04L5/0005 ,  H04W72/0446 ,  H04W72/0453 ,  H04W84/045 ,  H04W88/04 ,  H04W88/08

摘要： In a communication system that includes at least a first base station (206) having a first geographical service area (12) and second base station (210) having a second geographical service area (16) that overlaps at least partially with the first geographical service area (12), a relaying mobile wireless communication device (202) receiving service from the second base station (210) receives and forwards scheduling information (204) to the second base station (210), where the scheduling information (204) is transmitted by the first base station (206) and identifies communication resources that will be used for wireless communication with the first base station. Based at least on the scheduling information, the second base station (210) schedules communication resources to mobile wireless communication devices (202, 212) receiving service from the second base station (210) such that interference is reduced, minimized, or eliminated.

摘要翻译： 在至少包括具有第一地理服务区域（12）的第一基站（206）和具有第二地理服务区域（16）的第二基站（210）的通信系统中，所述第二地理服务区域至少部分地与第一地理服务 区域（12），从第二基站（210）接收服务的中继移动无线通信设备（202）接收并转发调度信息（204）到第二基站（210），其中发送调度信息（204） 由第一基站（206）识别将用于与第一基站进行无线通信的通信资源。 至少基于调度信息，第二基站（210）将通信资源调度到从第二基站（210）接收业务的移动无线通信设备（202,212），从而减少，最小化或消除干扰。

公开(公告)号：US12010757B2

公开(公告)日：2024-06-11

申请号：US17289596

申请日：2019-11-01

申请人： Kyocera Corporation ,  Amit Kalhan ,  Henry Chang

发明人： Amit Kalhan ,  Henry Chang

IPC分类号： H04W8/00 ,  H04L1/00 ,  H04L1/1867 ,  H04W84/18

CPC分类号： H04W8/005 ,  H04L1/0003 ,  H04L1/1896 ,  H04W84/18

摘要： The methods, devices, and systems discussed herein describe a wireless communication device broadcasting a periodic discovery channel message that includes an identifier associated with the wireless communication device that indicates its presence to neighboring wireless communication devices. If the neighboring wireless communication devices receive the periodic discovery channel message transmission above a pre-defined received power threshold and successfully decode the periodic discovery channel message, then the transmitting wireless communication device is added to the neighboring wireless communication devices neighboring device list. After receiving the periodic discovery channel messages from all of the neighboring wireless communication devices, a wireless communication device is able to identify all of its immediate neighboring devices and form its neighboring device list. Based on detecting periodic discovery channel message transmissions, a wireless communication device periodically updates its neighboring device list with new additions or removals of neighboring wireless communication devices.

公开(公告)号：US11177871B2

公开(公告)日：2021-11-16

申请号：US16079248

申请日：2017-03-02

申请人： Kyocera Corporation ,  Amit Kalhan ,  Henry Chang

发明人： Amit Kalhan ,  Henry Chang

IPC分类号： H04B7/155 ,  H04B17/364 ,  H04L1/18 ,  H04L1/00

摘要： An origination device (e.g., a base station) transmits a “received signal” to a signal forwarding device. The “received signal” comprises a first set of data, a first set of control information, and a second set of control information. The first and second sets of control information are both associated with the first set of data. The first set of control information contains instructions pertaining to the signal forwarding device processing the first set of data. The second set of control information contains instructions pertaining to a destination device (e.g. a user equipment (UE) device) processing the first set of data. The signal forwarding device transmits a “forwarded signal” to the destination device. The “forwarded signal” contains forwarded data, based on the first set of data, and forwarded control information, based on the second set of control information.