Patents by Inventor Amit Kalhan

Amit Kalhan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210400461
    Abstract: 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.
    Type: Application
    Filed: November 1, 2019
    Publication date: December 23, 2021
    Inventors: Amit KALHAN, Henry CHANG
  • Publication number: 20210400723
    Abstract: The methods and systems discussed herein describe how a wireless communication device obtains a reserved time-slot list (RTS-list) to avoid “merging collisions.” In some examples, a first wireless communication device indirectly obtains the RTS-list from a second wireless communication device with which the first wireless communication device may have a potential “merging collision.” In other examples, a first wireless communication device receives an RTS-list from each of a plurality (or all) of the neighboring wireless communication devices in the VANET and refrains from transmitting data in the time-slots identified in the received RTS-lists. The first wireless communication device may also generate and broadcast an RTS-list that contains the reserved time-slots that were identified in the received RTS-lists. In still further examples, abase station transmits an RTS-list to one or more of the wireless communication devices in order to help avoid “merging collisions.
    Type: Application
    Filed: November 1, 2019
    Publication date: December 23, 2021
    Inventor: Amit KALHAN
  • Publication number: 20210400451
    Abstract: The methods and systems discussed herein describe how a first wireless communication device forwards a 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 determines that it should forward the reservation signal based on a determination that the first wireless communication device is located at the edge of a coverage area associated with the second wireless communication device. This determination can be based on location information associated with the second wireless communication device or whether a received power value of the reservation signal is within a pre-defined threshold range value. In other examples, the first wireless communication device transmits an updated forwarded reservation signal, which is an update of a previously forwarded reservation signal in which multiple time-slots were reserved.
    Type: Application
    Filed: November 1, 2019
    Publication date: December 23, 2021
    Inventors: Amit KALHAN, Henry CHANG
  • Publication number: 20210392621
    Abstract: A network configures (e.g., allocates) reservation channel resources within a reservation channel resource pool. In some cases, the time-frequency resources available to use for reservation channel transmissions are distributed periodically in a time-frequency domain. In other cases, the time-frequency resources available to use for reservation channel transmissions are distributed non-periodically in a time-frequency domain. For example, the time-frequency resources available to use for reservation channel transmissions could be distributed in a pre-determined manner (e.g., deterministically) within the time-frequency domain. Regardless of the type of distribution, the wireless communication devices of a vehicle ad-hoc network (VANET) are made aware of the distribution/location of the reservation channel resources so that the wireless communication devices can attempt to decode the reservation channel transmissions at the appropriate location (e.g., within the time-frequency domain).
    Type: Application
    Filed: October 2, 2019
    Publication date: December 16, 2021
    Inventor: Amit KALHAN
  • Patent number: 11177871
    Abstract: 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.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: November 16, 2021
    Assignee: Kyocera Corporation
    Inventors: Amit Kalhan, Henry Chang
  • Publication number: 20210352664
    Abstract: A network configures (e.g., allocates) reservation channel resources within a reservation channel resource pool and transmits information regarding the reservation channel resource pool to at least one wireless communication device of a vehicle ad-hoc network (VANET). The reservation channel resource pool comprises at least one time-slot comprising a set of mini-slots. A wireless communication device interested in transmitting a reservation channel transmission selects, from the reservation channel resource pool, time-frequency resources to use for a reservation channel transmission. The wireless communication device also selects a number of mini-slots over which to repeatedly transmit the reservation channel transmission. The wireless communication device then repeatedly transmits the reservation channel transmission over the selected number of mini-slots, using the selected time-frequency resources.
    Type: Application
    Filed: October 2, 2019
    Publication date: November 11, 2021
    Inventor: Amit KALHAN
  • Patent number: 11172469
    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.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: November 9, 2021
    Assignee: Kyocera Corporation
    Inventor: Amit Kalhan
  • Publication number: 20210345297
    Abstract: A network configures (e.g., allocates) reservation channel resources within a reservation channel resource pool, comprising at least one time-slot comprising a set of mini-slots, and transmits information regarding the reservation channel resource pool to at least one wireless communication device of a vehicle ad-hoc network. A wireless communication device interested in transmitting a reservation channel transmission selects, from the reservation channel resource pool, time-frequency resources for a reservation channel transmission. The wireless communication device also selects a number of mini-slots over which to repeatedly transmit the reservation channel transmission. The wireless communication device repeatedly transmits the reservation channel transmission over the selected number of mini-slots, using the selected time-frequency resources.
    Type: Application
    Filed: October 2, 2019
    Publication date: November 4, 2021
    Inventor: Amit KALHAN
  • Publication number: 20210345355
    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.
    Type: Application
    Filed: July 13, 2021
    Publication date: November 4, 2021
    Inventors: Amit KALHAN, Henry CHANG
  • Publication number: 20210345183
    Abstract: The examples set forth herein describe methods, devices, and systems in which a wireless communication device that is a node of a vehicle ad-hoc network (VANET) spreads a reservation channel message with a spreading code, according to a codedivision multiple access (CDMA) scheme. The wireless communication device transmits a reservation channel transmission to at least one other wireless communication device, which is another node of the VANET, via time-frequency resources selected from a reservation channel resource pool. The reservation channel transmission contains the spread reservation channel message. In some examples, multiple reservation channel messages may be included in a single reservation channel transmission. In these examples, each reservation channel message is spread with a different orthogonal code before combining the reservation channel messages and spreading the combined reservation channel messages with a spreading code, according to a CDMA scheme.
    Type: Application
    Filed: October 9, 2019
    Publication date: November 4, 2021
    Inventors: Amit KALHAN, Henry CHANG
  • Patent number: 11165531
    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.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: November 2, 2021
    Assignee: Kyocera Corporation
    Inventors: Amit Kalhan, Henry Chang
  • Patent number: 11160023
    Abstract: A Wake-Up Signal (WUS) is transmitted at a first carrier frequency and at first system timing to a communication device and a paging message is transmitted to the communication device at a second carrier frequency and at a second system timing where the WUS indicates whether the paging message will be transmitted to the communication device. The communication device awakes from sleep state (sleep mode) and receives a resynchronization signal transmitted at the first carrier frequency.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: October 26, 2021
    Assignee: Kyocera Corporation
    Inventor: Amit Kalhan
  • Patent number: 11153030
    Abstract: 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.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: October 19, 2021
    Assignee: Kyocera Corporation
    Inventors: Amit Kalhan, Henry Chang
  • Patent number: 11153027
    Abstract: A first transceiver station broadcasts information to machine type communication (MTC) devices in the coverage area of the transceiver station using layered modulation where MTC devices receiving the broadcast above a signal quality threshold can recover the MTC information by applying a high modulation order. MTC devices receiving the broadcast below the quality threshold, recover a portion of the MTC information by applying a lower modulation order and recover the remaining portion of the MTC information transmitted from a second transceiver.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: October 19, 2021
    Assignee: Kyocera Corporation
    Inventors: Amit Kalhan, Henry Chang
  • Patent number: 11153790
    Abstract: An unmanned aerial vehicle (UAV) calculates an estimated uplink interference caused by the UAV at a neighboring cell based on a downlink signal received from the neighboring cell. Based on the estimated uplink interference, the UAV monitors downlink messages transmitted from the neighboring cell. If the uplink interference experienced by the neighboring cell exceeds an interference threshold, the neighboring cell transmits a downlink message, which includes an uplink interference indicator, to the UAV. Upon receipt of the uplink interference indicator, the UAV transmits a measurement report, including the uplink interference indicator, to the serving cell. In some cases, the serving cell transmits an interface availability message and a handover command to the UAV based at least partially on the measurement report. The serving cell may maintain a mobility history for the neighboring cell, which indicates a history of uplink interference problems and/or UAV handover availability for the neighboring cell.
    Type: Grant
    Filed: November 13, 2018
    Date of Patent: October 19, 2021
    Assignee: Kyocera Corporation
    Inventors: Henry Chang, Amit Kalhan, Masato Fujishiro
  • Patent number: 11153040
    Abstract: 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.
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: October 19, 2021
    Assignee: Kyocera Corporation
    Inventors: Amit Kalhan, Henry Chang
  • Publication number: 20210314944
    Abstract: Control information (126) related to the reception of data (128) within a subframe (116) is transmitted over multiple subframes (113, 116) over multiple carrier (107, 108) from communication system infrastructure (102). A controller (134) in a mobile wireless communication device (104) reconstructs the control information (126) received over multiple subframes (113, 116) based on at least some control information (130) in a first physical control channel (118) in a first subframe (113) transmitted over a first carrier (107) and at least some other control information (132) in a second physical control channel (120) in a second subframe (116) transmitted over a second carrier (108).
    Type: Application
    Filed: June 16, 2021
    Publication date: October 7, 2021
    Inventor: Amit KALHAN
  • Patent number: 11122486
    Abstract: A neighbonng cell determines that uplink interference from an unmanned aerial vehicle (UAV) exceeds a first threshold at the neighboring cell. The neighboring cell transmits an uplink interference indicator to the UAV. In some examples, the UAV informs its serving cell of the uplink interference experienced by the neighboring cell. The serving cell can utilize information received from the UAV to make handover decisions or scheduling decisions for the UAV that caused the uplink interference. In other examples, the UAV can temporarily refrain from transmitting on at least some of its uplink resources or utilize different uplink resources for uplink data transmissions. In still other examples, the UAV can utilize downlink measurements to select which neighboring base station System Information Block messages should be monitored for an uplink interference indicator.
    Type: Grant
    Filed: August 10, 2018
    Date of Patent: September 14, 2021
    Assignee: Kyocera Corporation
    Inventors: Amit Kalhan, Henry Chang
  • Patent number: 11122406
    Abstract: An intermediate station receives device Random Access Channel (RACH) transmissions from a plurality of machine type communication (MTC) devices and transmits at a bulk RACH transmission to a base station where the bulk RACH transmission represents the RACH transmissions from at least two of the device RACH transmissions.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: September 14, 2021
    Assignee: Kyocera Corporation
    Inventor: Amit Kalhan
  • Patent number: 11121761
    Abstract: An origination device (e.g., a base station) combines and encodes first user data and second user data, having similar QoS requirements, to generate a multiuser packet. In some cases, the origination device dual-encodes the multiuser packet. The multiuser packet is transmitted to one or more signal forwarding devices that each serve at least one of the users associated with the data contained in the multiuser packet. The signal forwarding device decodes the multiuser packet to obtain the first and second user data. The signal forwarding device transmits at least one portion of the multiuser packet, as single-encoded signals, to one or more appropriate destination devices (e.g., UE devices).
    Type: Grant
    Filed: March 17, 2017
    Date of Patent: September 14, 2021
    Assignee: Kyocera Corporation
    Inventor: Amit Kalhan