Detection method, system and equipment for keeping alive of radio resource control layer connection

Abstract

The invention discloses an activity-keeping detecting method connected with a radio resource control layer, which includes the following steps: determining a terminal that the existence time of the radio resource at the network side meets the preset requirement; sending activity-keeping detecting information to the terminal, and determining the terminal in an unactivated state when activity-keeping response information is not received from the terminal in the preset time. In addition, the invention also discloses an activity-keeping detecting system connected with the radio resource control layer and a device thereof. The technical proposal of the invention can reduce the risk that related resource at the network side is hanged.

Description

technical field [0001] The present invention relates to communication technology, in particular to a method, system and device for keeping alive detection of a radio resource control layer (RRC) connection. Background technique [0002] In the communication system, the network side communicates with the terminal through a Uu interface (also called a wireless interface). Uu interface is divided into 3 layers: physical layer (L1), data link layer (L2) and network layer (L3). Among them, the data link layer is divided into four sublayers: media access control (MAC), radio link control (RLC), packet data convergence protocol (PDCP), broadcast / multicast control (BMC); the network layer is divided into There are three sublayers: Radio Resource Control (RRC), Mobility Management (MM) and Connection Management (CM), where only the RRC sublayer exists on the access network side that communicates with the terminal. [0003] When the RRC connection is established, the network side al...

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Problems solved by technology

[0008] However, in the above solution, although there is a real-time dedicated link monitoring mechanism for the CELL_DCH state, the network side L1 needs to report the monitoring results to the network side L3 through the Iub interface. It may cause the L3 on the network side to be unable to obtain the link status monitored by the L1 on the network side in real time, resulting in failure of the keep-alive detection method

For the CELL_FACH, CELL_PCH, and URA_PCH states, the L3 on the network side performs keep-alive detection by starting the protection timer. Will cause the keep-alive detection method to fail

[0009] In this case, for terminals in the CELL_DCH state and CELL_FACH state, due to the need to occupy more wireless resources, the keep-alive detection method will fail, and the connection between the access network and the mobile terminal will be lost, and the network side will not be able to perceive it for a long time. When terminal, related resources on the network side will hang

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