Patent ID: 9301157
Filing Date: 2016-03-29
CPC Classification: H04L,H04W

Claim Text:
1. A radio communication system, comprising: a network-side apparatus; a radio base station controlled by the network-side apparatus; a radio terminal connected to the radio base station; and a monitor apparatus that monitors a network, wherein the monitor apparatus is a standalone monitor apparatus that is separated from the radio terminal, the radio base station, and the network-side apparatus, wherein the radio terminal, without receiving instructions for a measurement of communication performance, transmits a packet for the measurement of communication performance between the radio base station and the network-side apparatus to the radio base station via a first barrier, wherein the first barrier is a logical communication channel between the radio base station and the radio terminal at Radio Resource Control (RRC) layer, the radio base station transmits the packet received from the radio terminal to the network-side apparatus via a second barrier, wherein the second barrier is a logical communication channel between the radio base station and the network-side apparatus at S1 Application Part (S1-AP) layer, the radio base station transmits a first receipt time when the radio base station receives the packet from the radio terminal, to the monitor apparatus, and the network-side apparatus transmits a second receipt time when the network-side apparatus receives the packet from the radio base station, to the monitor apparatus.