FIELD

The present disclosure generally relates to wireless communications, and more particularly, to methods and apparatuses for Scheduling Request (SR) resource prioritization for Beam Failure Recovery (BFR).

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 the next generation wireless communication system, such as the 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 is a need for further improvements of wireless communication for the next generation wireless communication system.

SUMMARY

The present disclosure is directed to methods and apparatuses for SR resource prioritization for BFR.

According to an aspect of the present disclosure, a method performed by a User Equipment (UE) for SR resource prioritization for BFR is provided. The method includes the UE receiving, from a Base Station (BS), a first Scheduling Request (SR) configuration indicating a first SR index associated with a first SR resource, receiving, from the BS, a second SR configuration indicating a second SR index associated with a second SR resource, triggering a first SR procedure for a BFR procedure based on the first SR configuration, triggering a second SR procedure for a Buffer Status Report (BSR) procedure based on the second SR configuration, and in a case that the first SR procedure and the second SR procedure are triggered and not cancelled, and the first SR resource overlaps the second SR resource in a time domain, prioritizing the first SR resource over the second SR resource, and transmitting an SR on the first SR resource rather than the second SR resource after prioritizing the first SR resource over the second SR resource.

According to another aspect of the present disclosure, a UE is provided. The UE includes a memory and at least one processor coupled to the memory. The at least one processor is configured to receive, from a BS, a first SR configuration indicating a first SR index associated with a first SR resource, receive, from the BS, a second SR configuration indicating a second SR index associated with a second SR resource, trigger a first SR procedure for a BFR procedure based on the first SR configuration, trigger a second SR procedure for a BSR procedure based on the second SR configuration, and in a case that the first SR procedure and the second SR procedure are triggered and not cancelled, and the first SR resource overlaps the second SR resource in a time domain, prioritize the first SR resource over the second SR resource, and transmit an SR on the first SR resource rather than the second SR resource after prioritizing the first SR resource over the second SR resource.

