Smart congestion control for RRC connected mode in LTE systems

摘要

A UE establishes an RRC connection with a base station for an application in a mobile communication network. The UE acquires a barring indication that indicates whether scheduling request (SR) barring is applicable for the application. The UE then acquires prioritized barring parameters for SR barring if applicable. The prioritized barring parameters is associated with a priority of the application. Finally, the UE determines whether to send a scheduling request for an arrived packet based on the prioritized barring parameters. In one embodiment, the application is associated with a quality of service (QoS) class indicator (QCI), and the priority of the application is based on the QCI. The prioritized SR barring mechanism based on QCI can be applied for RRC Connected mode with finer granularity.

主权项

1. A method comprising:
establishing a radio resource control (RRC) connection by a user equipment (UE) with a base station for an application in a mobile communication network; acquiring a barring indication that indicates whether scheduling request (SR) barring of the established RRC connection is applicable for the application in RRC connected mode; acquiring prioritized barring parameters for SR barring associated with a priority of the application if SR barring is applicable, wherein the application is associated with an allocation and retention priority (ARP), and wherein the priority of the application is based on the ARP; and determining whether to send a scheduling request for an arrived packet of the established RRC connection in RRC Connected mode based on the prioritized barring parameters.