Methods and apparatuses of selecting a carrier for a sidelink multi-carrier operation

Abstract

Embodiments of the present disclosure relate to methods and apparatuses of selecting a carrier for a sidelink multi-carrier operation in 3GPP (3rd Generation Partnership Project) 5G networks. According to an embodiment of the present disclosure, a UE includes a processor and a wireless transceiver coupled to the processor; and the processor of the UE is configured: to transmit, via the wireless transceiver to a network node, at least one of carrier quality information and carrier problem information of a sidelink (SL) between the UE and a further UE, in response to data to be transmitted on the SL or data already transmitted on one or more carriers of the SL and in response to the network node scheduling a carrier for a data transmission on the SL; or to determine whether the at least one of the carrier quality information and the carrier problem information of the SL fulfills a carrier selection or reselection condition, in response to the processor of the UE scheduling the carrier for the data transmission on the SL; and to select a carrier from multiple carriers configured on the SL, in response to the at least one of the carrier quality information and the carrier problem information of the SL fulfilling the carrier selection or reselection condition.