RADIO MEASUREMENT COLLECTION METHOD AND RADIO TERMINAL

• US 20120092998A1
• Filed: 08/12/2011
• Published: 04/19/2012
• Est. Priority Date: 08/13/2010
• Status: Active Grant

• Current Assignee: Kyocera Corporation
• Original Assignee: Kyocera Corporation
• Inventors: CHANG, Henry, FUKUTA, Noriyoshi
• Granted Patent: US 8,854,979 B2
• Time in Patent Office: Days
• US Class Current: 370/241
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A radio measurement collection method using UE configured to perform a process of retaining a measurement log including a measurement result of a radio environment according to a measurement configuration set by a measurement configuration message received from a network includes a step S109 in which the network transmits a UEInformationRequest message to request a transmission of the measurement log to the UE, and a step S110 in which the UE transmits a UEInformationResponse message to transmit the measurement log to the network. In step S110, the UE transmits the UEInformationResponse message to the network even when the measurement log is not retained.

Claims

1. A radio measurement collection method using a radio terminal configured to perform a process of retaining a measurement log including a measurement result of a radio environment according to a measurement configuration set by a measurement configuration message received from a network, the method comprising:

a step A in which the network transmits, to the radio terminal, a log transmission request to request a transmission of the measurement log; and

a step B in which the radio terminal transmits, to the network, a log transmission response to transmit the measurement log, wherein

in the step B, the radio terminal transmits the log transmission response to the network even when the measurement log is not retained.

2. The radio measurement collection method according to claim 1, wherein

the radio terminal transmits the log transmission response to the network even when the measurement log is deleted due to a lapse of a predetermined period after an expiry of a measurement period.

3. The radio measurement collection method according to claim 1, wherein

at the time of transition to a connected state from an idle state, the radio terminal transmits, to the network, log retaining information indicating that the measurement log is retained, and

in this step A, the network transmits the log transmission request to the radio terminal on the basis of the log retaining information.

4. The radio measurement collection method according to claim 1, wherein

the radio terminal transmits, to the network, a transition completion message to the effect that the transition from the idle state to the connected state is completed, and

in the step A, the network transmits the log transmission request to the radio terminal which has made transition to the connected state.

5. The radio measurement collection method according to claim 4 wherein

the transition completion message includes log retaining information indicating that the measurement log is retained.

6. A radio terminal configured to perform a process of retaining a measurement log including a measurement result of a radio environment according to a measurement configuration set by a measurement configuration message received from a network, the radio terminal comprising:

a reception unit configured to receive, from the network, a log transmission request to request a transmission of the measurement log; and

a transmission unit configured to transmit, to the network, a log transmission response to transmit the measurement log, wherein

the transmission unit transmits the log transmission response to the network even when the measurement log is not retained.