Method and system for safety detection

Abstract

The embodiment of the invention discloses a method and a system for safety detection. The method is that a COUNT value is obtained; the COUNT value and a DRB ID are transmitted to an UE for check; the check result is received and the COUNT value and the DRB ID on the side of the UE are saved if abnormality occurs; and the COUNT value and the DRB ID on the side of the UE are checked. The system comprises an acquisition module 310, a transmitter module 320, a receiver module 330 and a check module, wherein the acquisition module 310 is used to acquire the COUNT value; the transmitter module 320is used to transmit the COUNT value and the DRB ID on the side of an eNB to the UE for check; the receiver module 330 is used to receive the check result of the UE and the COUNT value and the DRB ID on the side of the UE are saved if abnormality occurs; and the check module 340 is used to check the COUNT value and the DRB ID on the side of the UE. The method and the system for safety detection can overcome the problem of counter check process failure caused by realization differences of different manufacturers and can improve the reliability of the counter check process.

Description

technical field [0001] The invention relates to the field of wireless communication, in particular to a safety detection method and system. Background technique [0002] At present, in the Long Term Evolution (LTE) system, user plane data usually uses a counter check process as a security detection process to detect whether illegal data packets are inserted into the air interface. The inventor finds in the process of realizing the present invention: under the acknowledgment mode AM (AcknowledgedMode), the sender needs the wireless link to retransmit the status report confirmation of the RLC (Radio Link Control) entity, but the status report cycle of the current RLC is between 60 and 80ms, which is much longer than the time required by the countercheck process. In this way, the counter check response has been returned, but the sending RLC entity has not received the status report confirmation. At this time, if the COUNT value reported by the receiver is the RLC actually recei...

AI Technical Summary

Problems solved by technology

The inventor finds in the process of realizing the present invention: under the acknowledgment mode AM (AcknowledgedMode), the sender needs the radio link to retransmit the status report confirmation of the RLC (Radio Link Control) entity, but the status report period of the current RLC is between 60 and 80ms, which is much longer than the time required for the countercheck process. In this way, the counter check response has been returned, but the sender RLC entity has not received the status report confirmation. At this time, if the COUNT value reported by the receiver is the RLC actually received The COUNT value of the received data packet will cause the counter check process to fail under normal circumstances, which will further lead to abnormal release of the bearer or an error in the alarm

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