Minimization of resource allocation delay for V2X application

    公开(公告)号:US10531353B2

    公开(公告)日:2020-01-07

    申请号:US15254390

    申请日:2016-09-01

    Abstract: In an aspect an apparatus receives information as part of a handover command, the information received from a serving cell and including radio resource information used in a neighboring cell for V2X communications. Additionally, the apparatus transmits, from the UE, a request for V2X communication resources as part of a handover command. In another aspect an apparatus transmits a serving cell SIB to a UE, the SIB including a reception pool. The apparatus transmits a cell ID in the serving cell SIB for a neighboring cell. The reception pool is a transmission pool for the neighboring cell. The apparatus relinquishes a communication with the UE to a base station in the neighboring cell.

    Semi-persistent scheduling mechanisms for vehicle-to-vehicle communication

    公开(公告)号:US10477527B2

    公开(公告)日:2019-11-12

    申请号:US15177186

    申请日:2016-06-08

    Abstract: The present disclosure enables the assignment of multiple semi-persistent resource assignments at the same time for use in V2V communications. In an aspect of the disclosure, a method, a computer-readable medium, and an apparatus are provided. The apparatus may be a UE (e.g., a vehicle). The UE may determine at least one resource pattern required for V2V communications. The UE may also send assistance information for the at least one resource pattern to a base station. Further, the UE may receive, from the base station, a response associated with the at least one resource pattern. In an aspect, the response may include an index of approved resource patterns. Further still, the UE may receive, from the base station, an activation grant for a resource assignment for the at least one resource pattern. In an aspect, activation grant may include the index of approved resource patterns being activated.

    HYBRID OPERATION MODE FOR VEHICLE-TO-EVERYTHING COMMUNICATIONS

    公开(公告)号:US20190306912A1

    公开(公告)日:2019-10-03

    申请号:US16370400

    申请日:2019-03-29

    Abstract: Methods, systems, and devices for wireless communications are described. In some systems, base stations and user equipments may use a hybrid operation mode to allocate resources in a cellular vehicle-to-everything communication system. For example, a user equipment (e.g., a vehicle) in the system may receive, from a base station, an indication that the user equipment belongs to at least one group of user equipments for group-level resource allocation, receive, from the base station, an allocation of resources including a pool of resources assigned to the at least one group of user equipments, and reserve a subset of resources of the pool of resources for communication to at least one other user equipment. This communication may be an example of a vehicle-to-everything communication over a sidelink communication channel.

    MECHANISMS FOR SIDELINK RESOURCE SCHEDULING
    428.
    发明申请

    公开(公告)号:US20190268918A1

    公开(公告)日:2019-08-29

    申请号:US16281380

    申请日:2019-02-21

    Abstract: Methods, systems, and devices for wireless communications are described. In one example, a method includes receiving broadcast information from a base station that identifies types of resources for vehicle-based sidelink communications that are supported by the base station and transmitting a request to the base station for resource scheduling information to perform a vehicle-based sidelink communication based on the broadcast information. In some cases, the request includes an indication of a type of resources for the vehicle-based sidelink communication supported by the base station and a quality of service (QoS) metric associated with the vehicle-based sidelink communication. In some cases, the method further includes receiving, in response to the request, a response from the base station that comprises the resource scheduling information to perform the vehicle-based sidelink communication.

    WAVEFORM DESIGN OF DISCOVERY SIGNALS
    430.
    发明申请

    公开(公告)号:US20190253866A1

    公开(公告)日:2019-08-15

    申请号:US16239383

    申请日:2019-01-03

    Abstract: Methods, systems, and devices for wireless communications are described. In some wireless communications systems, a wireless device may broadcast a discovery preamble to identify a receiving device or to identify a suitable beam for communicating with a receiving device prior to broadcasting a discovery message to the receiving device. In such systems, the wireless device may use the techniques described herein to generate the discovery preamble and to reduce interference between discovery preamble transmissions and avoid data loss. In one example, a wireless device may append a cyclic prefix (CP) to a discovery preamble with a suitable length to protect the discovery preamble from interference from another transmission. In another example, the wireless device may generate a cyclically periodic signal including multiple copies of the discovery preamble so a receiving device may be able to receive a portion of the signal and identify the discovery preamble.

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