公开(公告)号：US12273180B2

公开(公告)日：2025-04-08

申请号：US18389299

申请日：2023-11-14

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04B7/155 ,  H04B17/364 ,  H04L1/00 ,  H04L1/1829

Abstract: An origination device transmits a “received data signal” to a signal forwarding device. The “received data signal” comprises a first set of data. The origination device also transmits at least one “received control signal” to the signal forwarding device and to a destination device. The at least one “received control signal” comprises 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 the destination 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.

公开(公告)号：US12048059B2

公开(公告)日：2024-07-23

申请号：US17289668

申请日：2019-11-01

Applicant: Kyocera Corporation ,  Amit Kalhan ,  Henry Chang

Inventor： Amit Kalhan ,  Henry Chang

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

CPC classification number: H04W8/005 ,  H04L1/0003 ,  H04L1/1896 ,  H04W4/46 ,  H04W84/18

Abstract: 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：US12046142B2

公开(公告)日：2024-07-23

申请号：US17790902

申请日：2021-01-15

Applicant: Kyocera Corporation

Inventor： Amit Kalhan

IPC: G08G1/16 ,  G08G1/09 ,  H04W4/02 ,  H04W4/021 ,  H04W4/06 ,  H04W4/40 ,  H04W4/44 ,  H04W4/90

CPC classification number: G08G1/164 ,  G08G1/091 ,  G08G1/16 ,  G08G1/166 ,  H04W4/021 ,  H04W4/025 ,  H04W4/06 ,  H04W4/40 ,  H04W4/44 ,  H04W4/90

Abstract: The methods, devices, and systems discussed herein periodically broadcast a signal containing an indicator to a first area that is near a potential safety scenario, such as an intersection. In some examples, the broadcast signal is part of a Synchronization System Block (SSB). In other examples, the broadcast signal is a System Information Block (SIB) message. Upon entering the first area and waking from an IDLE state, a mobile wireless communication device (WCD) receives the broadcast signal. In response to receiving the broadcast signal, the WCD activates a collision-avoidance procedure. In some examples, the collision-avoidance procedure includes sensing device-to-device (D2D) resources in order to detect D2D transmissions from an approaching D2D-capable device (e.g., a vehicle). In other examples, the collision-avoidance procedure includes transmitting a periodic D2D safety message using D2D resources.

公开(公告)号：US11950275B2

公开(公告)日：2024-04-02

申请号：US18126848

申请日：2023-03-27

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04W72/543 ,  H04L5/00 ,  H04W72/54 ,  H04W76/14

CPC classification number: H04W72/543 ,  H04L5/0048 ,  H04W72/54 ,  H04W76/14

Abstract: A base station (eNB) determines device-to-device (D2D) transmission parameters for signal transmission over a D2D communication link between a first user equipment (UE) device and a second UE device. The eNB instructs the first UE device to transmit a reference signal that is received by the second UE device. The second UE device reports D2D channel characteristic information indicative of the received reference signal. Based on the D2D channel characteristic information, the base station determines the D2D transmission parameters and provides the parameters to the first UE device.

公开(公告)号：US11632770B2

公开(公告)日：2023-04-18

申请号：US17514923

申请日：2021-10-29

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04W72/12 ,  H04W72/08 ,  H04W76/14 ,  H04W74/08 ,  H04W28/02 ,  H04L47/26 ,  H04W72/1263 ,  H04W28/16 ,  H04W92/18 ,  H04W88/02

Abstract: 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.

公开(公告)号：US11606182B2

公开(公告)日：2023-03-14

申请号：US16339115

申请日：2017-10-17

Applicant: Kyocera Corporation

Inventor： Amit Kalhan

IPC: H04M7/00 ,  H04L5/00 ,  H04W72/121 ,  H04W72/1273 ,  H04W72/12 ,  H04N1/32 ,  H04W4/70 ,  H04B7/185 ,  H04Q3/00

Abstract: A base station transmits a signal transmission to a mobile broadband (MBB) user equipment (UE) device and to a machine type communication (MTC) device that is in close proximity to the MBB UE device where the signal transmission includes control channel and a data channel. The control channel includes common location dependent control information that applies to the MTC device and the MBB UE device because they are at the same location.

公开(公告)号：US11558723B2

公开(公告)日：2023-01-17

申请号：US16339079

申请日：2017-10-04

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04W4/70 ,  H04B7/0413 ,  H04L1/00 ,  H04L27/34 ,  H04J13/00 ,  H04W72/12 ,  H04W72/04 ,  H04L5/00 ,  H04W84/04

Abstract: A base station transmits a layered data signal to multiple devices that are in close proximity to each other where the layered data signal includes at least first data on a first data layer directed to a first device and second data on a second data layer directed to a second device. The base station also transmits a single control message to both devices where the control message comprises location dependent control information directed to both devices. The control message also comprises data layer control information arranged in multiple fields where data layer control information in a field is associated with a device and allows the associated device to recover the data from a data layer assigned to the device.

公开(公告)号：US11558145B2

公开(公告)日：2023-01-17

申请号：US17040699

申请日：2019-03-14

Applicant: Kyocera Corporation ,  Amit Kalhan

Inventor： Amit Kalhan

IPC: H04L1/00 ,  H04B7/155

Abstract: An origination device (e.g., a base station) receives relaying information from a signal forwarding device in a grant or a broadcast message. The relaying information can be information pertaining to channel conditions and/or quality (e.g., a Channel Quality Indicator) of a first communication link between the signal forwarding device and a destination device, and/or an encoding rate based on channel conditions associated with the first communication link. The origination device utilizes the relaying information to determine a first set of encoding parameters that correspond to channel conditions associated with the first communication link between the signal forwarding device and a destination device. The origination device encodes a first set of data according to the first set of encoding parameters and transmits the encoded first set of data to the signal forwarding device. The signal forwarding device transmits the encoded first set of data to the destination device.

公开(公告)号：US11172469B2

公开(公告)日：2021-11-09

申请号：US16116648

申请日：2018-08-29

Applicant: Kyocera Corporation

Inventor： Amit Kalhan

IPC: H04W72/04 ,  H04L1/16 ,  H04W4/70 ,  H04W76/14 ,  H04L5/00 ,  H04W72/06 ,  H04B7/0413 ,  H04W72/08

Abstract: A first wireless communication device receives device-to-device (D2D) control information from a base station in a cellular communication system and sends second device D2D control data to a second wireless communication device. The second device control data is used for D2D communication over a D2D communication link between the first wireless communication device and the second wireless communication device. The second device D2D control data is at least partially based on the D2D control information.

公开(公告)号：US11165531B2

公开(公告)日：2021-11-02

申请号：US16328664

申请日：2017-09-11

Applicant: Kyocera Corporation

Inventor： Amit Kalhan ,  Henry Chang

IPC: H04L1/00 ,  H04W48/10 ,  H04L12/18 ,  H04L27/34 ,  H03M13/25 ,  H04L5/00 ,  H04L7/06 ,  H04W4/70

Abstract: The base station includes an encoder that encodes a first set of bits of MTC information with a first coding rate and encodes a second set of MTC information bits with a second coding rate. The first set and second set of bits are modulated using layered modulation and broadcast within the service area of the base station in a first transmission such that the first set of bits can be recovered using the low modulation order and the second set of bits can be recovered using the high modulation order. A relay station receives, demodulates and decodes the first transmission to recover at least the second set of bits. The relay station transmits a second set transmission including at least the second set of bits to at least one MTC device that did not recover the second set of bits from the first transmission.