Techniques for power saving in sidelink communications

    公开(公告)号:US11974223B2

    公开(公告)日:2024-04-30

    申请号:US17123716

    申请日:2020-12-16

    CPC classification number: H04W52/0229 H04W72/20

    Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support communications. For example, a wireless communications system may support New Radio (NR) cellular-vehicle to everything (C-V2X) communication. In some examples, a user equipment (UE) may receive a sidelink control channel for a sidelink transmission on a first set of symbols of a time slot (e.g., the first two or three symbols of a time slot). The UE may decode the sidelink control channel and disable one or more radio frequency (RF) components associated with processing the sidelink transmission on a second set of symbols of the time slot based on decoding the sidelink control channel. For example, the UE may disable one or more RF components if the UE determines the sidelink control channel is decoded unsuccessfully.

    TECHNIQUES FOR POWER SAVING IN SIDELINK COMMUNICATIONS

    公开(公告)号:US20220191792A1

    公开(公告)日:2022-06-16

    申请号:US17123716

    申请日:2020-12-16

    Abstract: Methods, systems, and devices for wireless communications are described. Some wireless communications systems may support communications. For example, a wireless communications system may support New Radio (NR) cellular-vehicle to everything (C-V2X) communication. In some examples, a user equipment (UE) may receive a sidelink control channel for a sidelink transmission on a first set of symbols of a time slot (e.g., the first two or three symbols of a time slot). The UE may decode the sidelink control channel and disable one or more radio frequency (RF) components associated with processing the sidelink transmission on a second set of symbols of the time slot based on decoding the sidelink control channel. For example, the UE may disable one or more RF components if the UE determines the sidelink control channel is decoded unsuccessfully.

    Power level signaling for a wireless communication system

    公开(公告)号:US12075369B2

    公开(公告)日:2024-08-27

    申请号:US17651207

    申请日:2022-02-15

    CPC classification number: H04W52/52 H04W4/40

    Abstract: An apparatus for wireless communication includes a receiver and a transmitter that is configured to transmit a signal during a first slot. The signal has a power level that is associated with a transmission that is to occur during the first slot or during a second slot after the first slot. The signal is distinct from the transmission. The first slot and the second slot occur during a sub-frame time interval associated with a first cellular vehicle-to-everything (CV2X) wireless communication protocol, and the first slot and the second slot are associated with a second CV2X wireless communication protocol different than the first CV2X wireless communication protocol. The transmitter is further configured to perform the transmission during the second slot based on the power level.

    Transmission diversity scheme requests for sidelink

    公开(公告)号:US12199708B2

    公开(公告)日:2025-01-14

    申请号:US17646945

    申请日:2022-01-04

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a receiver mobile station may receive at least one sidelink signal. The receiver mobile station may transmit an indication of a requested transmission diversity scheme, of a plurality of transmission diversity schemes, based at least in part on the at least one sidelink signal. Numerous other aspects are described.

    Wireless communication with non-punctured symbols

    公开(公告)号:US11540178B2

    公开(公告)日:2022-12-27

    申请号:US16705067

    申请日:2019-12-05

    Abstract: A transmitting device maps complex valued symbols in sequence to physical resource blocks for a sidelink transmission. The transmitting device reserves a first symbol of a subframe, where resource elements in the first symbol of the subframe are not considered in mapping the complex valued symbols to the physical resource blocks for the sidelink transmission. The transmitting device transmits the sidelink transmission after mapping the complex valued symbols to the physical resource blocks. A receiving device receives the sidelink transmission and decodes the sidelink transmission to determine complex valued symbols that are mapped in sequence to physical resource blocks of the sidelink transmission, where the complex valued symbols are not mapped to resource elements in a first symbol of a subframe.

    Slot structure for automatic gain control for high subcarrier spacing

    公开(公告)号:US12213137B2

    公开(公告)日:2025-01-28

    申请号:US17673637

    申请日:2022-02-16

    Abstract: Methods, systems, and devices for wireless communications are described. In some examples, when a high subcarrier spacing (SCS) is used for sidelink communications, the user equipments (UEs) may use a modified sidelink slot structure for the sidelink communications. In one example, the slot structure may include at least two automatic gain control (AGC) symbols with at least one sidelink control channel symbol between the two AGC symbols. The UE may perform an AGC procedure during the two AGC symbols and the sidelink control channel symbol. In some examples, the slot structure may include bundled slots to minimize per slot overhead associated with AGC symbols and sidelink control channel symbols. For example, at a high SCS, the slot structure may include a first slot including multiple AGC symbols, Subsequent bundled slots may not include AGC symbols and/or sidelink control channel symbols.

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