Radio vehicle-to-anything negative acknowledgement based multicast

    公开(公告)号:US10721027B2

    公开(公告)日:2020-07-21

    申请号:US16020518

    申请日:2018-06-27

    Abstract: Methods, systems, and devices for wireless communication are described. One method for wireless communication at a first device includes receiving a multicast packet from a second device, decoding control header information in the received multicast packet, determining that a decoding procedure associated with a payload of the received multicast packet is unsuccessful and transmitting a negative acknowledgement (NACK) based at least in part on the determining. The method also includes retrieving a list of transmitter identifiers. In some cases, transmitting the NACK is based at least in part on the list of transmitter identifiers. The method further includes determining a transmitter identifier associated with the multicast packet and determining that the transmitter identifier is present in the list of transmitter identifiers.

    PATH LOSS ESTIMATION
    82.
    发明申请

    公开(公告)号:US20200229106A1

    公开(公告)日:2020-07-16

    申请号:US16737807

    申请日:2020-01-08

    Abstract: Methods, systems, and devices for wireless communications are described. Examples may include a receiving wireless device located in a first geographic zone receiving multiple signals from one or more transmitting wireless devices. The receiving wireless device may determine based on the received signals that the one or more transmitting devices are located in a second geographic zone. The receiving wireless device may determine configured transmit power information for each of the signals received from the transmitting wireless devices located in the second geographic zone. The receiving wireless device may estimate a path loss of wireless communications between the first geographic zone and the second geographic zone based on the configured transmit powers received in the signals. The receiving wireless device may communicate within the second geographic location based on the estimated path loss between the first geographic region and the second geographic region.

    MESSAGE RE-TRANSMISSION IN A GROUP OF DEVICES

    公开(公告)号:US20200153559A1

    公开(公告)日:2020-05-14

    申请号:US16680036

    申请日:2019-11-11

    Abstract: A device receives a coded message from a re-transmitting device designated by one or more devices for performing message re-transmission on their behalf. The coded message encodes a first message and a second message, where the receiving device has failed to receive at least the second message. The receiving device further receives a coding-based re-transmission indicator indicating that the coded message is configured as a coding-based re-transmission of two or more previously transmitted messages that are encoded together in the coded message. The receiving device recovers the second message by decoding the coded message. In another aspect, a re-transmitting device is designated by one or more devices for performing message re-transmission on behalf of the devices. The device generates a coded message that encodes a first and a second message; and transmits the coded message and an indicator indicating that the coded message is a coding-based re-transmission.

    Enabling multi-cluster transmissions

    公开(公告)号:US10595315B2

    公开(公告)日:2020-03-17

    申请号:US15646861

    申请日:2017-07-11

    Abstract: Methods, systems, and devices for wireless communication are described. A user equipment (UE) may determine to use multi-cluster communications in a vehicle based communication network. The UE may identify a configuration parameter associated with the multi-cluster communications. The UE may select a cluster resource from a set of available cluster resources based on the configuration parameter. The cluster resource may include one or more clusters used for multi-cluster transmissions in the vehicle based communication network. The UE may transmit an indication of the selected cluster resource to a wireless node of the vehicle based communication network, for example, to another UE. The UE may transmit the multi-cluster transmission on the selected cluster resource.

    Methods and apparatus related to time tracking in multi carrier systems

    公开(公告)号:US10448364B2

    公开(公告)日:2019-10-15

    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.

    Enabling device-to-device discovery

    公开(公告)号:US10334552B2

    公开(公告)日:2019-06-25

    申请号:US15589634

    申请日:2017-05-08

    Abstract: Methods, systems, and devices are describe for signaling protocols for device-to-device discovery operations in a wireless communication system. A user equipment (UE) may be communicating with a serving base station using a first frequency in a first frequency band. The UE may transmit, to the serving base station, information associated with performing a discovery scan procedure on a second frequency in a second frequency band during a discovery scan interval. The first frequency may be different from the second frequency. The UE may identify a capability to skip one or more downlink transmissions from the serving base station during the discovery scan interval.

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