Method and Device for Minimizing Drive Test Logging Measurement

• US 20120088457A1
• Filed: 12/16/2011
• Published: 04/12/2012
• Est. Priority Date: 06/18/2009
• Status: Active Grant

• Current Assignee: Honor Device Company Limited
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Zhang, Hongzhuo, Zhang, Dongmei, Huang, Ying, Johansson, Johan, Jin, Lei
• Granted Patent: US 9,973,954 B2
• Time in Patent Office: Days
• US Class Current: 455/67.11
• CPC Class Codes: G06F 2221/2101 Auditing as a secondary aspect
• CPC Class Codes: H04W 16/18 Network planning tools
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 8/24 Transfer of terminal data

Abstract

Embodiments of the present invention provide a Minimizing Drive Test (MDT) logging measurement method and device. The method includes: generating MDT logging measurement configuration information; and sending the MDT logging measurement configuration information to an active User Equipment (UE) and/or an idle UE according to a predetermined rule. Through the solutions provided in the embodiments of the present invention, a commercial UE in an existing network may be utilized to assist in locating a network problem, thus reducing a Drive Test (DT) overhead.

Claims

1. A method for Minimizing Drive Test (MDT) logging measurement configuration, comprising:

generating MDT logging measurement configuration information; and

sending the MDT logging measurement configuration information to an active User Equipment (UE) and/or an idle UE according to a predetermined rule.

2. The method according to claim 1, wherein the generating the MDT logging measurement configuration information comprises:

generating a network performance problem value according to current network performance, and generating the MDT logging measurement configuration information according to the network performance problem value.

3. The method according to claim 1, wherein the predetermined rule comprises:

sending MDT logging measurement configuration information triggered by system capacity optimization and/or channel performance optimization to the active UE;

or

sending the MDT logging measurement configuration information randomly to the active UE and/or the idle UE;

or

obtaining version information of the active UE and/or the idle UE, and sending the MDT logging measurement configuration information to the active UE and/or the idle UE whose version information conforms to a predetermined version;

or

obtaining charge level information of the active UE and/or the idle UE, and sending the MDT logging measurement configuration information to the active UE and/or the idle UE whose charge level information conforms to a predetermined charge level;

or

obtaining measurement state information of the active UE and/or the idle UE, and sending the MDT logging measurement configuration information to the active UE and/or the idle UE, wherein the active UE and/or the idle UE is not performing MDT logging measurement;

or

obtaining report history information of the active UE and/or the idle UE, and sending the MDT logging measurement configuration information to the active UE and/or the idle UE whose report history information conforms to the predetermined number of times.

4. The method according to claim 1, wherein the sending the MDT logging measurement configuration information to an active UE comprises:

sending the MDT logging measurement configuration information to the active UE through a Dedicated Control Channel (DCCH); and

the sending the MDT logging measurement configuration information to an idle UE comprises;

sending the MDT logging measurement configuration information to the idle UE on the DCCH by paging the idle UE, or sending the MDT logging measurement configuration information to the idle UE through a Broadcast Control Channel (BCCH).

5. The method according to claim 1, further comprising:

receiving a result of the MDT logging measurement, wherein the result of the MDT logging measurement is reported by the UE, and sending the result of the MDT logging measurement to an MDT logging data server so as to enable the MDT logging data server to locate a network problem.

6. The method according to claim 1, wherein the MDT logging measurement configuration information comprises:

a logging Identifier (ID), a measurement triggering condition, a measurement variable, and a report variable.

7. The method according to claim 6, wherein

the measurement triggering condition comprises:

periodical triggering or event triggering;

the measurement variable comprises at least one following item;

measurement time, a UE location, Reference Signal Received Power (RSRP), a Reference Signal Strength Indicator (RSSI), a UE speed, a UE ID, a Cell-Radio Network Temporary Identifier (C-RNTI) which is allocated by a network cell to the UE, power of a UE emission preamble, the number of Random Access Channel (RACH) attempt times, an RACH failure reason, the number of UpLink Packet Data Convergence Protocol Service Data Units (UL PDCP SDUs) lost before scheduling, a maximum length/average length of a Service Data Unit (SDU) sequence, a maximum delay of SDU scheduling, the number of UL PDCP SDU attempts/successful transmission, a cell search delay, user plane interruption time during handover, an indication that preamble emission power reaches the maximum, an access delay, preamble emission power, a contention resolution indication, path loss estimation, the number of contention resolution times, the number of non-RACH response times, and backoff time; and

the report variable comprises at least one following item;

the number of event occurrence times, an event occurrence reason, measurement time, a UE location, RSRP, an RSSI, a UE speed, a UE ID, a C-RNTI, power of a UE emission preamble, the number of RACH attempt times, an RACH failure reason, the number of UL PDCP SDUs lost before scheduling, a maximum length/average length of an SDU sequence, a maximum delay of SDU scheduling, the number of UL PDCP SDU attempts/successful transmission, a cell search delay, user plane interruption time during handover, an indication that preamble emission power reaches the maximum, an access delay, preamble emission power, a contention resolution indication, path loss estimation, the number of contention resolution times, the number of non-RACH response times, and backoff time.

8. The method according to claim 6, wherein the MDT logging measurement configuration information further comprises:

a measurement stop condition; and

the measurement stop condition comprises that;

the UE receives a new measurement configuration, or a network instructs the UE to terminate the measurement, or the UE has a low charge level and the measurement automatically stops, or the UE cannot normally report, or the UE has no storage space.

10. The system side device according to claim 6, wherein the generating unit is further configured to generate a network performance problem value according to current network performance, and generate the MDT logging measurement configuration information according to the network performance problem value.

9. A system side device, comprising:

a generating unit, configured to generate Minimizing Drive Test (MDT) logging measurement configuration information; and

a sending unit, configured to send the MDT logging measurement configuration information to an active User Equipment (UE) and/or an idle UE according to a predetermined rule.

11. The system side device according to claim 9, wherein the sending unit is further configured to:

send MDT logging measurement configuration information triggered by system capacity optimization and/or channel performance optimization to the active UE;

or

send the MDT logging measurement configuration information randomly to the active UE and/or the idle UE;

or

obtain version information of the active UE and/or the idle UE, and send the MDT logging measurement configuration information to the active UE and/or the idle UE whose version information conforms to a predetermined version;

or

obtain charge level information of the active UE and/or the idle UE, and send the MDT logging measurement configuration information to the active UE and/or the idle UE whose charge level information conforms to a predetermined charge level;

or

obtain measurement state information of the active UE and/or the idle UE, and send the MDT logging measurement configuration information to the active UE and/or the idle UE, wherein the active UE and/or the idle UE is not performing MDT logging measurement;

or

obtain report history information of the active UE and/or the idle UE, and send the MDT logging measurement configuration information to the active UE and/or the idle UE whose report history information conforms to the predetermined number of times.

12. The system side device according to claim 9, wherein the generating unit is integrated in one of the following network elements:

an Evolved Node B (eNB), a network performance monitoring node, and an entity independently existing in a network; and

the sending unit is integrated in one of the following network elements;

an eNB, a network performance monitoring node, and an entity independently existing in a network.

13. A Minimizing Drive Test (MDT) logging measurement method, comprising:

receiving, by a User Equipment (UE), MDT logging measurement configuration information;

performing, by the UE, MDT logging measurement according to the MDT logging measurement configuration information, reporting and storing a result of the MDT logging measurement if the UE is active; and

performing, by the UE, MDT logging measurement according to the MDT logging measurement configuration information, and storing a result of the MDT logging measurement if the UE is idle.

14. The method according to claim 13, wherein the performing, by the UE, the MDT logging measurement according to the MDT logging measurement configuration information comprises:

storing, by the UE, the MDT logging measurement configuration information locally, and performing the MDT logging measurement if MDT logging measurement is not started; and

using, by the UE, the received MDT logging measurement configuration information instead of old MDT logging measurement configuration information, and performing the MDT logging measurement;

or applying the received MDT logging measurement configuration information to perform MDT logging measurement after a current measurement period of the old MDT logging measurement configuration information ends;

or applying the received MDT logging measurement configuration information to perform MDT logging measurement after measurement by using the old MDT logging measurement configuration information ends if the MDT logging measurement is started.

15. The method according to claim 13, wherein reporting and storing a result of the MDT logging measurement if the UE is active comprises:

performing reporting and storing a result of the MDT logging measurement according to a report triggering condition in the MDT logging measurement configuration information if the UE is active.

16. The method according to claim 13, further comprising:

when the UE is active, if the UE has no storage space, or the UE receives a request for stopping measurement, or a measurement stop condition in the MDT logging measurement configuration information is met, or the UE decides to stop measurement, or a charge level of the UE is lower than a preset threshold, stopping, by the UE, reporting the result of the MDT logging measurement; and

when the UE is idle, if the UE has no storage space, or a measurement stop condition in the MDT logging measurement configuration information is met, or the UE decides to stop measurement, or a charge level of the UE is lower than a preset threshold, stopping, by the UE, storing the result of the MDT logging measurement.

17. A User Equipment (UE), comprising:

a receiving unit, configured to receive Minimizing Drive Test (MDT) logging measurement configuration information;

a state judging unit, configured to judge whether the UE is active or idle;

an MDT logging measuring unit, configured to perform MDT logging measurement according to the MDT logging measurement configuration information received by the receiving unit;

a storing unit, configured to store a result of the MDT logging measurement performed by the MDT logging measuring unit; and

a reporting unit, configured to report the result of the MDT logging measurement performed by the MDT logging measuring unit when the state judging unit judges that the UE is active.

18. The UE according to claim 17, wherein the storing unit is further configured to:

store the MDT logging measurement configuration information if the MDT logging measurement is not started; and

use the received MDT logging measurement configuration information instead of old MDT logging measurement configuration information if the MDT logging measurement is started.

19. The UE according to claim 18, wherein the MDT logging measuring unit is further configured to perform the MDT logging measurement after a current measurement period of the old MDT logging measurement configuration information ends;

or to perform the MDT logging measurement after the measurement by using the old MDT logging measurement configuration information ends if the MDT logging measurement is started.

20. The UE according to claim 17, further comprising:

a stopping unit, configured to stop the reporting unit from reporting the result of the MDT logging measurement, or stop the storing unit from storing the result of the MDT logging measurement.