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.

Inventor(s): Soenghun KIM

CPC Classification: H04W28/0236 (Traffic management, e.g. flow control or congestion control)

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