SIGNALING FOR ENERGY HARVESTING AT A DEVICE

    公开(公告)号:US20220385109A1

    公开(公告)日:2022-12-01

    申请号:US17331557

    申请日:2021-05-26

    Abstract: Methods, systems, and devices for wireless communications are described that support signaling for energy harvesting at a first device. In some examples, the first device may transmit, to a second device, an indication of one or more an energy conversion efficiency factors, power threshold parameters, power levels, battery power levels, or the like. Based on receiving the indication of the one or more of the characteristics, the second device may determine a radio frequency power for subsequent signaling. The second device may transmit a signal having the determined radio frequency power, and the first device may receive the signaling and convert at least a first portion of the radio frequency power to direct current (DC) power.

    CHANNEL REPORTING FOR ENERGY HARVESTING AT A DEVICE

    公开(公告)号:US20220385104A1

    公开(公告)日:2022-12-01

    申请号:US17331458

    申请日:2021-05-26

    Abstract: Methods, systems, and devices for wireless communications are described. A device may include an energy harvesting circuit configured to convert radio frequency energy associated with signals detected by the device to direct current (DC) energy for storage at the device. The device may additionally include a signal decoding circuit configured to decode the signals detected by the device to identify transmissions from other devices in the wireless communications system. The device may rely on power splitting or time switching to direct radio frequency energy to both the energy harvesting circuit and signal decoding circuit of the device. The device may employ various methods for channel estimation, channel reporting, and communications with another device based on utilizing power splitting or time switching to both perform energy harvesting and signal decoding.

    Frequency hopping techniques for uplink control channel repetitions

    公开(公告)号:US11502721B2

    公开(公告)日:2022-11-15

    申请号:US17212583

    申请日:2021-03-25

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a base station, a control message identifying a frequency hop configuration that configures the UE to use frequency hopping when transmitting repetitions of an uplink control channel transmission. The UE, the base station, or both may determine, based on the UE being configured with the frequency hop configuration, a frequency hop for each repetition of the uplink control channel transmission. Each frequency hop may be determined based on a corresponding uplink control channel index for a respective repetition a frequency hop for each repetition of the uplink control channel transmission. The uplink control channel index may be an uplink transmission occasion index, or a repetition index. The UE may transmit the repetitions of the uplink control channel transmission using respective frequency hops in accordance with the determination and the frequency hop configuration.

    Techniques for intra-user equipment and inter-user equipment cancelation of overlapping communications

    公开(公告)号:US11490414B2

    公开(公告)日:2022-11-01

    申请号:US17174272

    申请日:2021-02-11

    Abstract: Methods, systems, and devices for wireless communications are described. Wireless communications systems may employ one or more scheduling constraints to support efficient utilization of techniques for intra-device handling of overlapping scheduled uplink transmissions (e.g., intra-device dynamic resource cancelation and multiplexing) as well as inter-device handling of overlapping scheduled uplink transmissions (e.g., inter-device dynamic resource cancelation and multiplexing). Scheduling constraints may define how a device may apply intra-device and inter-device multiplexing and cancelation rules for various scenarios. For example, a device may apply intra-UE cancelation rules before inter-device cancelation rules. In some examples, later-received grants or uplink preemption indications (ULPIs) may not change a device's previously established decision to drop an uplink transmission. As another example, a device may not expect to receive a grant for an uplink transmission that would arise in subsequent cancelation of that uplink transmission due to a previously-received grant or previously-received ULPI.

    Collision handling for physical uplink shared channel (PUSCH) repetition

    公开(公告)号:US11483092B2

    公开(公告)日:2022-10-25

    申请号:US16775086

    申请日:2020-01-28

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may identify one or more slots in which an aperiodic channel state information (A-CSI) report communication on a multi-slot physical uplink shared channel (PUSCH) overlaps with a second communication on a physical uplink control channel (PUCCH). The UE may select for a slot of the one or more slots, an uplink communication from the A-CSI report communication or the second communication based at least in part on a first priority assigned to the A-CSI report communication and a second priority assigned to the second communication. The UE may determine whether to transmit the uplink communication on the multi-slot PUSCH or the PUCCH in the slot. The UE may transmit the uplink communication in the slot. Numerous other aspects are provided.

    FEEDBACK MULTIPLEXING FOR UPLINK TRANSMISSION WITH REPETITION SKIPPING

    公开(公告)号:US20220338215A1

    公开(公告)日:2022-10-20

    申请号:US17699029

    申请日:2022-03-18

    Inventor: Yi Huang Peter Gaal

    Abstract: Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a message scheduling a multi-repetition uplink transmission to a base station. The UE may generate a protocol data unit (PDU) comprising filler data for the multi-repetition uplink transmission based at least in part on a quantity of data in a buffer for transmission to the base station failing to satisfy a threshold. The UE may transmit a repetition of the multi-repetition uplink transmission based at least in part on determining that the repetition overlaps with a feedback message scheduled for transmission to the base station, the repetition comprising the PDU multiplexed with the feedback message. The UE may suppress a transmission of one or more additional repetitions of the multi-repetition uplink transmission that do not overlap with the feedback message based at least in part on the PDU comprising the filler data.

    HARQ feedback reporting for cross-carrier scheduling

    公开(公告)号:US11464036B2

    公开(公告)日:2022-10-04

    申请号:US16949094

    申请日:2020-10-13

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a base station may transmit a plurality of physical downlink control channel (PDCCH) communications in a same PDCCH monitoring occasion in a first cell, and may transmit a plurality of physical downlink shared channel (PDSCH) communications in at least one of the first cell or a second cell. Each of the PDCCH communications schedules a respective PDSCH communication of the plurality of PDSCH communications. A PDCCH communication, of the plurality of PDCCH communications, includes an indication of a counter downlink assignment index that is based at least in part on a combination of a starting symbol and a cell in which an associated PDSCH communication is to be transmitted, a cell index of the cell in which the associated PDSCH communication is to be transmitted, and the PDCCH monitoring occasion. Numerous other aspects are provided.

    USER EQUIPMENT SHIFT RANDOMIZATION FOR UPLINK CONTROL CHANNEL TRANSMISSION

    公开(公告)号:US20220303042A1

    公开(公告)日:2022-09-22

    申请号:US17715609

    申请日:2022-04-07

    Abstract: Methods, systems, and devices for wireless communications are described. In some cases, randomized shifts of a base sequence may be used for transmitting uplink control information. For example, a user equipment (UE) may identify a base sequence of an uplink control message. The UE may also receive signaling that indicates a UE-specific initial shift that may be applied to the base sequence. In some examples, the signaling that indicates the randomized shift may be explicit, implicit, or a combination thereof. After determining one or more shifted sequences based on the UE-specific initial shift, a payload of the uplink control message, and the base sequence, the UE may select a shifted sequence to be transmitted, where the selection is based on a payload of the uplink control message. For example, different shifted sequences may be selected for respective transmissions of scheduling requests, 1-bit acknowledgments (ACKs), 2-bit ACKs, and the like.

    Transmission power for partial coherent antennas

    公开(公告)号:US11411625B2

    公开(公告)日:2022-08-09

    申请号:US16449309

    申请日:2019-06-21

    Abstract: A method, a computer-readable medium, and an apparatus are provided that enable use of a full transmission power for a UE having a first set of coherent antenna ports that is non-coherent to a second set of coherent antenna ports. The apparatus determines a transmission power for a data transmission from the UE to a base station based at least in part on power control signaling from the base station, determines at least one antenna port having non-zero data for transmission, and determines a transmission power split for the at least one antenna port. Then, the apparatus transmits the data transmission from the at least one antenna port, wherein a combined transmission power from the at least one antenna port corresponds to the transmission power determined based at least in part on the power control signaled from the base station.

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