Patent ID: 9554295
Date: 2017-01-24
CPC Classifications: H04J,H04L,H04W

Claim:
1. A radio measurement collection method performed by a radio terminal, comprising the steps of: receiving, from a radio base station of a first radio access technology, a Minimization of Drive Test (MDT) configuration specific to the first radio access technology; in an idle state, performing radio environment measurement in accordance with the MDT configuration, wherein the radio terminal performs second measurement for a second radio access technology as well as first measurement for the first radio access technology even when the MDT configuration only configures the first measurement for the first radio access technology; in the idle state, logging measurement results of the radio environment measurement together with location information, wherein the radio terminal logs a second measurement result for the second radio access technology as well as a first measurement result for the first radio access technology so as to perform a report to a network; and transmitting the first measurement result and the second measurement result to the network, the second measurement result including information of frequency at which the second measurement is performed.