ENHANCEMENT OF MAC SIGNALING FOR NETWORK-ASSISTED V2X RESOURCE SCHEDULING IN PC5 MULTI-CARRIER OPERATION

    公开(公告)号:US20190098651A1

    公开(公告)日:2019-03-28

    申请号:US16140456

    申请日:2018-09-24

    Abstract: Aspects of the disclosure relate to a method of operating a scheduled entity for wireless communication with a network. In some aspects, the scheduled entity obtains data that is to be transmitted, wherein one or more frequencies are available for transmission of the data. The scheduled entity transmits, to a scheduling entity, a message that includes an amount of the data to be transmitted and a frequency parameter indicating at least one of the one or more frequencies to be used for the transmission of the data. The scheduled entity obtains, from the scheduling entity, a resource grant based on the message and transmits the data based on the resource grant. Other aspects, embodiments, and features are also claimed and described.

    METHODS AND APPARATUS RELATED TO TIME TRACKING IN MULTI CARRIER SYSTEMS

    公开(公告)号:US20180206208A1

    公开(公告)日:2018-07-19

    申请号:US15710460

    申请日:2017-09-20

    Abstract: In an aspect, an apparatus, e.g., a base station of a first network, maybe configured to receive UE capability information from each UE of a plurality of UEs, the UE capability information indicating a number of different carrier synchronization timings that the UE can track within a plurality of carriers. The carriers maybe associated with multiple different networks including the first network. The apparatus maybe configured to determine, based on the received UE capability information, a set of synchronization-timing priorities indicating a priority for timing synchronization types for use within each carrier of a set of carriers of the plurality of carriers, and broadcast the set to the UEs. In an aspect, a UE may determine and send the UE capability to a base station. The UE may receive the set of synchronization-timing priorities and perform timing synchronization based on the received set of synchronization-timing priorities.

    DETECTION OF TECHNOLOGIES FOR COEXISTENCE
    374.
    发明申请

    公开(公告)号:US20180049014A1

    公开(公告)日:2018-02-15

    申请号:US15617765

    申请日:2017-06-08

    Abstract: An apparatus, such as a user equipment or a vehicle, may receive a signal associated with vehicle-to-everything (V2X) communication. The apparatus may determine a total energy that corresponds to the received signal, such as by measuring the energy on one or more resources. The apparatus may determine a fractional energy associated with a first technology of the total energy, such as by detecting a sequence associated with a first technology included in the received signal and determining the energy with which the detected sequence is received. The apparatus may determine presence of a second technology based on the determined fractional energy.

    DSRC-LTE V2V CO-CHANNEL LONG TERM COEXISTENCE
    376.
    发明申请

    公开(公告)号:US20180014146A1

    公开(公告)日:2018-01-11

    申请号:US15465877

    申请日:2017-03-22

    Abstract: An effective way for the cellular device-to-device communication and the short range communication to share a set of channels for communication is desired. The apparatus may be a user equipment (UE). The apparatus determines a priority level of each channel of a plurality of channels. The apparatus determines whether a first channel of the plurality of channels, the first channel having a highest priority level, is occupied by short range wireless communication. If the first channel is occupied by the short range wireless communication, the apparatus determines availability of one or more remaining channels of the plurality of channels for a cellular device-to-device (D2D) communication, where the one or more remaining channels are different from the first channel.

    TRANSMISSION WITH INDICATION OF GEOGRAPHIC AREA

    公开(公告)号:US20250168590A1

    公开(公告)日:2025-05-22

    申请号:US19023163

    申请日:2025-01-15

    Abstract: An improved manner of transmitting and receiving messages in V2X/V2V/D2D is presented in which a transmitting device determines a geographic location of the mobile transmitting device and generates a message for a service group having a group ID associated with the service group, the message comprising a first indication of a geographic area associated with the message, the geographic area based at least in part on the geographic location of the transmitting device. Then, the apparatus transmits the message to the service group, e.g., via V2X/V2V/D2D communication. A receiving device then determines its geographic location and determines whether to send a feedback for the message based on the first indication of the geographic area associated with the message and the geographic location of the receiving device.

    SOURCE BASED SYNCHRONIZATION FOR WIRELESS DEVICES

    公开(公告)号:US20250150997A1

    公开(公告)日:2025-05-08

    申请号:US18838051

    申请日:2022-05-05

    Abstract: Methods, systems, and devices for wireless communications are described. A first device may activate an independent synchronization source mode based on one or more conditions associated with the first device. The independent synchronization source mode may correspond to the first device operating as reference for synchronization. The first device may transmit one or more synchronization signals indicating a device type of the first device and indicating that the first device is operating as the reference for synchronization. For example, the first device may select one or more bits or an identifier corresponding to the device type to include in the one or more synchronization signals. A second device receiving the one or more synchronization signals may select the first device as a reference for synchronization based on the device type. The second device may synchronize with the first device using the synchronization signal.

    TIME WINDOW ASSOCIATED WITH SIDELINK TRANSMISSION

    公开(公告)号:US20250142600A1

    公开(公告)日:2025-05-01

    申请号:US18498723

    申请日:2023-10-31

    Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment (UE) may transmit a sidelink transmission associated with a modulation and coding scheme (MCS) index. The UE may monitor a quantity of retransmissions associated with the sidelink transmission within a time window. The UE may selectively retransmit the sidelink transmission based at least in part on the MCS index and the quantity of retransmissions. Numerous other aspects are described.

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