METHOD AND APPARATUS OF HANDLING DEVICE-TO-DEVICE RESOURCE POOL WITHOUT PHYSICAL SIDELINK FEEDBACK CHANNEL IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210168790A1

    公开(公告)日:2021-06-03

    申请号:US17104627

    申请日:2020-11-25

    Abstract: A method and apparatus are disclosed from the perspective of a first device. In one embodiment, the method includes the first device receiving a configuration, from a network node, of a first sidelink resource pool without any Physical Sidelink Feedback Channel (PSFCH) resource. The method further includes the first device receiving a first sidelink grant transmitted, configured, or scheduled by the network node, wherein the first sidelink grant schedules or indicates at least a first sidelink resource in the first sidelink resource pool. Furthermore, the method includes the first device expecting or considering that the first sidelink grant provides no Physical Uplink Control Channel (PUCCH) resource for reporting Sidelink (SL) Hybrid Automatic Repeat Request (HARD) feedback.

    METHOD AND APPARATUS FOR DERIVING DOWNLINK PATHLOSS FOR DEVICE-TO-DEVICE TRANSMIT POWER CONTROL IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20210144655A1

    公开(公告)日:2021-05-13

    申请号:US17151190

    申请日:2021-01-17

    Abstract: A method and apparatus are disclosed from the perspective of a device to perform sidelink transmission. The method includes the device being in RRC (Radio Resource Control)-connected mode in Uu link. The method also includes the device being configured to use at least DL (Downlink) pathloss for sidelink power control. The method further includes the device deriving a first DL pathloss value for determining an uplink transmit power of one specific kind of uplink transmission. In addition, the method includes the device determining or deriving a sidelink transmit power based on the first DL pathloss value. Furthermore, the method includes the device performing a sidelink transmission to other device(s) with the sidelink transmit power.

    METHOD AND APPARATUS FOR IMPROVING ONE-TO-ONE SIDELINK COMMUNICATION IN A WIRELESS COMMUNICATION SYSTEM

    公开(公告)号:US20200146082A1

    公开(公告)日:2020-05-07

    申请号:US16670381

    申请日:2019-10-31

    Abstract: A method and apparatus are disclosed from the perspective of a User Equipment (UE) for the UE to request sidelink resources for an one-to-one V2X (Vehicle-to-Everything) sidelink communication, wherein the UE supports both LTE (Long Term Evolution) RAT (Radio Access Technology) and NR (New Radio) RAT. In one embodiment, the method includes the UE initiating a one-to-one V2X sidelink communication. The method further includes the UE transmitting a RRC (Radio Resource Control) message to a network node to request sidelink resources from NR RAT for the one-to-one V2X sidelink communication and not transmitting any RRC message to the network node to request sidelink resources from LTE RAT for the one-to-one V2X sidelink communication.

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