Patent ID: 9282470
Filing Date: 2016-03-08
CPC Classification: H04L,H04W

Claim Text:
1. A method of detecting a radio link failure in a wireless communication system, the method comprising: initializing a radio link failure (RLF) counter for detecting the radio link failure; determining whether decoding of a message on a downlink channel is successful; decrementing a value of the RLF counter if the decoding fails, and incrementing the value of the RLF counter if the decoding is successful; and declaring the radio link failure if the value of the RLF counter is less than or equal to a specific value, wherein a decrement size of the value of the RLF counter varies according to a received signal strength of the downlink channel, wherein if the received signal strength of the downlink channel is greater than a first threshold and if a reset counter is less than a specific value, the RLF counter is reset, wherein a value of the reset counter is decremented when the RLF counter is reset, wherein if the decoding is successful and if the received signal strength of the downlink channel is less than a second threshold and greater than or equal to a third threshold, the RLF counter is incremented by 4, the second threshold being greater than the third threshold, wherein if the decoding is successful and if the received signal strength of the downlink channel is less than the third threshold, the RLF counter is incremented by 8, and wherein if the decoding is successful and if the received signal strength of the downlink channel is greater than or equal to the second threshold, the RLF counter is incremented by 2.