FIELD

The present disclosure is related to wireless communication, and more particularly, to a method for sidelink operation in cellular wireless communication networks.

BACKGROUND

With the tremendous growth in the number of connected devices and the rapid increase in user/network traffic volume, various efforts have been made to improve different aspects of wireless communication for cellular wireless communication systems, such as fifth generation (5G) New Radio (NR), by improving data rate, latency, reliability and mobility.

The 5G NR system is designed to provide flexibility and configurability to optimize the network services and types, accommodating various use cases such as enhanced Mobile Broadband (eMBB), massive Machine-Type Communication (mMTC), and Ultra-Reliable and Low-Latency Communication (URLLC).

However, as the demand for radio access continues to increase, there exists a need for further improvements in the art.

SUMMARY

The present disclosure is related to a method performed by a user equipment (UE) in cellular wireless communication network for sidelink operation.

According to an aspect of the present disclosure, a UE is provided that includes one or more non-transitory computer-readable media containing computer-executable instructions embodied therein and at least one processor coupled to the one or more non-transitory computer-readable media. The at least one processor is configured to execute the computer-executable instructions to receive, from a first cell, a conditional handover command that includes an indication of a second cell and one or more triggering conditions for handover to the second cell, perform handover to the second cell after determining that at least one of the triggering conditions is fulfilled, and apply a sidelink resource configuration that is stored in the UE after performing handover to the second cell based on the conditional handover command.

According to another aspect of the present disclosure, a method for sidelink operation performed by a UE is provided. The method includes receiving, from a first cell, a conditional handover command that includes an indication of a second cell and one or more triggering conditions for handover to the second cell, performing handover to the second cell after determining that at least one of the triggering conditions is fulfilled, and applying a sidelink resource configuration that is stored in the UE after performing handover to the second cell based on the conditional handover command.

