公开(公告)号：US11991561B2

公开(公告)日：2024-05-21

申请号：US17289674

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： H04W4/46 ,  H04W28/26 ,  H04W72/20 ,  H04W72/0446 ,  H04W84/04 ,  H04W84/18

CPC分类号： H04W28/26 ,  H04W4/46 ,  H04W72/20 ,  H04W72/0446 ,  H04W84/042 ,  H04W84/18

摘要： The methods and systems discussed herein describe a first wireless communication device forwarding a first reservation signal, which identifies one or more time-slots that have been reserved by a second wireless communication device, to avoid “merging collisions.” In some examples, the first wireless communication device also receives a second reservation signal from a third wireless communication device, which identifies at least one time-slot that is the same as a time-slot that was identified in the first reservation signal. The first wireless communication device transmits a forwarded reservation signal that identifies the time-slots reserved by whichever of the second wireless communication device and the third wireless communication device has higher priority data to transmit. In other examples, the first wireless communication device transmits the forwarded reservation signal if a received power value of the first reservation signal is within a pre-defined received power range.

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：US11337191B2

公开(公告)日：2022-05-17

申请号：US16636850

申请日：2018-08-10

申请人： Amit Kalhan ,  Henry Chang ,  Kyocera Corporation

发明人： Amit Kalhan ,  Henry Chang

IPC分类号： H04W72/04 ,  H04W72/08 ,  H04L5/00 ,  H04L27/26 ,  H04W24/10 ,  H04W72/12

摘要： A serving base station allocates communication resources to be used by an aerial vehicle user equipment device (AV-UE) for uplink data transmissions. A neighboring base station is informed, via an air interface, of the communication resources that were allocated to the AV-UE. In some examples, the AV-UE retransmits scheduling assignment information, received from the serving base station, to the neighboring base station. In still other examples, the AV-UE transmits a sounding reference signal (SRS) to the neighboring base station. The neighboring base station can decode the retransmitted scheduling assignment information and/or the SRS to obtain information regarding the communication resources that have been allocated to the AV-UE for uplink data transmissions. The neighboring base station mitigates interference from the uplink data transmissions sent by the AV-UE.

公开(公告)号：US10361769B2

公开(公告)日：2019-07-23

申请号：US15772257

申请日：2016-11-17

申请人： Kyocera Corporation ,  Amit Kalhan ,  Henry Chang

发明人： Amit Kalhan ,  Henry Chang

IPC分类号： H04B7/155 ,  H04L1/00 ,  H04B7/0426

摘要： A signal forwarding device forwards signals between a user equipment (UE) device and a base station using a partial decode and forward (PDF) signal forwarding scheme where an incoming signal is demodulated and forwarded to a destination as a forwarded signal without decoding the incoming signal. The signal forwarding device transmits, to the base station, channel information regarding the UE-SFD channel between the UE device and the signal forwarding device. A base station (BS) scheduler determines the coding rate to be used by the UE device at least partially based on the channel information. The base station transmits coding rate information indicative of the coding rate to the signal forwarding device. A signal forwarding device (SFD) scheduler schedules communication resources for use by the UE device at least partially based on the coding rate information.

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.

公开(公告)号：US11153040B2

公开(公告)日：2021-10-19

申请号：US16079866

申请日：2017-03-17

申请人： Kyocera Corporation ,  Amit Kalhan ,  Henry Chang

发明人： Amit Kalhan ,  Henry Chang

IPC分类号： H04L1/00 ,  H04L1/18 ,  H04B7/155 ,  H04L5/00

摘要： An origination device (e.g., a base station) dual encodes a first set of data (1) according to a first set of encoding parameters corresponding to channel conditions associated with a first communication link, and (2) according to a second set of encoding parameters corresponding to channel conditions associated with a second communication link. The dual-encoded first set of data is transmitted to a signal forwarding device. The signal forwarding device decodes the dual-encoded first set of data, using decoding parameters that correspond to the second set of encoding parameters, to generate a single-encoded first set of data that is encoded according to the first set of encoding parameters. The signal forwarding device transmits a “single-encoded forwarded signal” to the destination device. The destination device decodes the single-encoded forwarded signal using decoding parameters that correspond to the first set of encoding parameters, which yields the first set of data.

公开(公告)号：US11212819B2

公开(公告)日：2021-12-28

申请号：US15512948

申请日：2015-09-25

申请人： Kyocera Corporation ,  Amit Kalhan ,  Henry Chang

发明人： Amit Kalhan ,  Henry Chang

IPC分类号： H04W72/12 ,  H04W72/08 ,  H04W76/14 ,  H04W74/08 ,  H04W28/02 ,  H04L12/825 ,  H04W28/16 ,  H04W92/18 ,  H04W88/02

摘要： In a communication system having a plurality of user equipment (UE) devices that are operating in a contention based mode for device-to-device (D2D) communication, each UE device transmits a preferred transmission indicator when a condition for preferred transmission is met at the UE device. If a UE device receives a preferred transmission indicator, the UE device delays transmission of a D2D scheduling assignment (SA) to contend for communication resources for D2D communication. The length of the delay can be based on a number of preferred transmission indicators that are received. The preferred transmission indicator is based on a buffer size in one example.