Method of handling minimization of drive tests in radio access technology change

• US 8,594,671 B2
• Filed: 10/24/2011
• Issued: 11/26/2013
• Est. Priority Date: 11/02/2010
• Status: Active Grant

• Current Assignee: HTC Corporation
• Original Assignee: HTC Corporation
• Inventors: Wu, Chih-Hsiang
• Primary Examiner(s): SHAHEED, KHALID W
• Application Number:
  US13/280,305
• Publication Number:
  US 20120108241A1
• Time in Patent Office: 764 Days
• Field of Search: 455/436, 455/437, 455/438, 455/439, 455/442, 455/443, 455/444, 370/331
• US Class Current: 455/436
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/14 Reselecting a network or an air interface

Abstract

A method of handling minimization of drive tests, hereafter called MDT, for a mobile device is disclosed. The method comprises receiving a MDT measurement configuration from a first RAT, starting a timer for a MDT measurement logging corresponding to a timer value in the MDT measurement configuration, and keeping the timer running when the mobile device performs an inter-RAT procedure to move from the first RAT to a second RAT.

Claims

1. A power-saving method of handling a minimization of drive, hereafter called MDT, including a MDT timer for a mobile device when the mobile device finishes an inter-RAT procedure, the method comprising:

receiving a MDT measurement configuration from a first radio access technology (RAT);

starting the MDT a timer corresponding to a timer value included in the MDT measurement configuration when the mobile device receives the MDT measurement configuration; and

keeping the MDT timer running when the mobile device finishes the inter-RAT procedure and moves from the first RAT to a second RAT;

wherein the MDT measurement configuration comprises an IdleLoggingConfiguration message or a MDT LOGGING CONFIGURATION message, and the MDT timer is a timer T326 and the first RAT is a Universal Terrestrial Radio Access Network, hereafter called UTRAN, or the MDT timer is a timer T330 and the first RAT is an Evolved UTRAN, hereafter called EUTRAN.

2. The method of claim 1, wherein keeping the MDT timer running when the mobile device finishes the inter-RAT procedure and moves from the first RAT to the second RAT comprises:

when the mobile device finishes the inter-RAT procedure and moves from the first RAT to the second RAT, not stopping the MDT timer.

3. The method of claim 1, further comprising:

stopping the MDT measurement logging when the MDT timer expires.

7. The method of claim 2, wherein the inter-RAT procedure comprises an inter-RAT cell reselection from UTRAN, an inter-RAT handover from UTRAN, or an inter-RAT cell change order from UTRAN.

4. A power-saving method of handling a minimization of drive tests, hereafter called MDT, including a MDT timer for a mobile device when the mobile device finishes an inter-RAT procedure, the method comprising:

receiving a MDT measurement configuration from a first radio access technology (RAT);

starting the MDT timer corresponding to a timer value included in the MDT measurement configuration when the mobile device receives the MDT measurement configuration; and

starting/restarting the MDT timer when the mobile device an finishes the inter-RAT procedure and moves from the first RAT to a second RAT;

wherein the MDT measurement configuration comprises an IdleLoggingConfiguration message or a MDT LOGGING CONFIGURATION message, and the MDT timer is a timer T326 and the first RAT is a Universal Terrestrial Radio Access Network, hereafter called UTRAN, or the MDT timer is a timer T330 and the first RAT is an Evolved UTRAN, hereafter called EUTRAN.

5. The method of claim 4, wherein starting/restarting the timer when the mobile device finishes the inter-RAT procedure and moves from the first RAT to the second RAT comprises:

when the mobile device finishes the inter-RAT procedure, moves from the first RAT to the second RAT, and stops the MDT timer that has started, starting/restarting the MDT timer with a remaining timer value of the started MDT timer.

6. The method of claim 4, further comprising:

stopping the MDT measurement logging when the MDT timer expires.