Method and apparatus for reporting data status in mobile wireless communication system

Abstract

A method and apparatus to support XR services is provided. Method for supporting XR services includes triggering a delay status report (DSR) for a one or more logical channels, triggering a scheduling request (SR) in case that uplink resource available for new transmission is not enough to accommodate the DSR medium access control (MAC) control element (CE) and its subheader as a result of logical channel prioritization, transmitting the SR based on SR configuration, starting a prohibit timer for the SR, and stopping the prohibit timer for the SR in case that a specific delay-critical data is transmitted. The specific delay-critical data is a delay-critical data that has not been transmitted. The delay-critical data comprises packet data convergence protocol (PDCP) Service Data Units (SDUs) that belongs to a Protocol Data Unit (PDU) set of which at least one PDCP SDU has the remaining time till expiry of a discard timer less than a remaining time threshold. The discard timer starts for a PDCP SDU when the PDCP SDU arrives at PDCP entity. The remaining time threshold is configured based on a radio resource control message.

Dependencies are inferred from the claim text.