METHOD, DEVICE, AND SYSTEM FOR INTER-FREQUENCY CELL MEASUREMENT

• US 20140362716A1
• Filed: 07/18/2014
• Published: 12/11/2014
• Est. Priority Date: 01/19/2012
• Status: Active Grant

• Current Assignee: Godo Kaisha IP Bridge 1 (IP Bridge, Inc.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Zhang, Tao, Lin, Bo, Chai, Li, Shi, Jie
• Granted Patent: US 10,039,024 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• 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 36/00837 Determination of triggering parameters for hand-off
• CPC Class Codes: H04W 36/008375 based on historical data
• CPC Class Codes: H04W 36/0088 Scheduling hand-off measurements
• CPC Class Codes: H04W 36/04 Reselecting a cell layer in multi-layered cells
• CPC Class Codes: H04W 84/045 using private Base Stations, e.g. femto Base Stations, home Node B
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

The present invention provides a method, a device, and a system for inter-frequency cell measurement. The method includes: performing, by a terminal, when receiving a measurement command of a network side device, inter-frequency cell measurement, in different cases, based on the time specified in different measurement time parameters or based on measurement time parameters corresponding to the information about an inter-frequency band. As different measurement time parameters specify different time actually used for measurement, not only an inter-frequency cell that meets a measurement event can be measured, but also the time for measurement by the terminal can be reduced, thereby reducing the power consumption of the terminal and enhancing the performance of the terminal.

Claims

1. A method for inter-frequency cell measurement, the method comprising:

receiving, by a terminal, a measurement command carrying information about an inter-frequency band sent by a network side device;

detecting whether the signal quality or strength of a serving cell is lower than a second preset value, wherein the second preset value is carried in the measurement command or prestored in the terminal;

if yes, performing, based on preset first measurement time parameters, inter-frequency cell measurement; and

if no, performing, based on preset second measurement time parameters, inter-frequency cell measurement, wherein the first measurement time parameters comprise a first gap duration, a first gap repetition cycle, and a first minimum available measurement time, the second measurement time parameters comprise a second gap duration, a second gap repetition cycle, and a second minimum available measurement time, and the first gap duration is longer than the second gap duration, and/or the first gap repetition cycle is shorter than the second gap repetition cycle, and/or the first minimum available measurement time is longer than the second minimum available measurement time.

2. The method according to claim 1, wherein the first measurement time parameters and/or second measurement time parameters are carried in the measurement command, and the method further comprises:

feeding back, to the network side device, identifiers of measurement time parameters to be adopted, and/or an application moment of the measurement time parameters.

3. The method according to claim 1, wherein the first measurement time parameters and/or second measurement time parameters are prestored in the terminal, and the method further comprises:

determining whether a measurement identifier is carried in the measurement command, and if yes, performing a step of detecting whether a candidate cell is present within a certain range of a current position.

4. A method for inter-frequency cell measurement, the method comprising:

receiving, by a terminal, a measurement command carrying information about an inter-frequency band sent by a network side device;

performing, within a first period, based on preset third measurement time parameters, inter-frequency cell measurement; and

performing, within a second period, based on preset fourth measurement time parameters, inter-frequency cell measurement or suspending inter-frequency cell measurement, wherein the first period and the second period alternately form a continuous time, and the third measurement time parameters are different from the fourth measurement time parameters.

5. The method according to claim 4, wherein the first period and the second period are provided by the network side device.

6. The method according to claim 4, wherein:

performing, within a first period, based on preset third measurement time parameters, inter-frequency cell measurement comprises;

starting a first timer, and performing, based on the preset third measurement time parameters, inter-frequency cell measurement, wherein the first timer is configured to provide the first period; and

performing, within a second period, based on preset fourth measurement time parameters, inter-frequency cell measurement or suspending inter-frequency cell measurement comprises;

starting, when the first timer expires, a second timer, and performing, based on the preset fourth measurement time parameters, inter-frequency cell measurement, or suspending inter-frequency cell measurement, wherein the second timer is configured to provide the second period; and

when the second timer expires, returning to the step of starting a first timer, and continuing to perform, based on the preset third measurement time parameters, inter-frequency cell measurement.

7. The method according to claim 6, wherein:

performing, within a first period, based on preset third measurement time parameters, inter-frequency cell measurement comprises;

starting a first timer and a third timer, respectively, and performing, based on the preset third measurement time parameters, inter-frequency cell measurement, wherein the first timer provides the first period, and the third timer provides the first period and the second period; and

performing, within a second period, based on preset fourth measurement time parameters, inter-frequency cell measurement or suspending inter-frequency cell measurement comprises;

when the first timer expires, performing, based on the preset fourth measurement time parameters, inter-frequency cell measurement, or suspending inter-frequency cell measurement; and

when the third timer expires, returning to the step of starting a first timer and a third timer, respectively, and continuing to perform, based on the preset third measurement time parameters, inter-frequency cell measurement.

8. The method according to claim 6, before performing, within a first period, based on preset third measurement time parameters, inter-frequency cell measurement, further comprising:

determining whether the measurement command carries a measurement identifier, and if yes, then performing the step of performing, within a first period, based on preset third measurement time parameters, inter-frequency cell measurement.

9. A method for inter-frequency cell measurement, the method comprising:

sending, by a network side device, to a terminal a measurement command carrying information about an inter-frequency band;

detecting, by the terminal, after receiving the measurement command, whether the signal quality or strength of a serving cell is lower than a second preset value, wherein the second preset value is carried in the measurement command or prestored in the terminal;

if yes, performing, based on preset first measurement time parameters, inter-frequency cell measurement; and

if no, performing, based on preset second measurement time parameters, inter-frequency cell measurement, wherein the first measurement time parameters comprise a first gap duration, a first gap repetition cycle, and a first minimum available measurement time, the second measurement time parameters comprise a second gap duration, a second gap repetition cycle, and a second minimum available measurement time, and the first gap duration is longer than the second gap duration, and/or the first gap repetition cycle is shorter than the second gap repetition cycle, and/or the first minimum available measurement time is longer than the second minimum available measurement time.

10. A method for inter-frequency cell measurement, the method comprising:

sending, by a network side device, to a terminal a measurement command carrying information about an inter-frequency band;

performing, by the terminal, after receiving the measurement command, within a first period, based on preset third measurement time parameters, inter-frequency cell measurement; and

performing, within a second period, based on preset fourth measurement time parameters, inter-frequency cell measurement or suspending inter-frequency cell measurement, wherein the first period and the second period alternately form a continuous time, and the third measurement time parameters are different from the fourth measurement time parameters.

12. The device according to claim 10, wherein the first measurement time parameters and/or second measurement time parameters are carried in the measurement command, and the device further comprises:

a first feedback module, configured to feed back to the network side device identifiers of measurement time parameters to be adopted, and/or an application moment of the measurement time parameters.

13. The device according to claim 10, wherein the first measurement time parameters and/or second measurement time parameters are prestored, and the device further comprises:

a second determination module, configured to determine whether a measurement identifier is carried in the measurement command, and if yes, trigger the second detection module to start.

11. A device for inter-frequency cell measurement, the device comprising:

a receiving module, configured to receive a measurement command carrying information about an inter-frequency band sent by a network side device;

a second detection module, configured to detect whether the signal quality or strength of a serving cell is lower than a second preset value, wherein the second preset value is carried in the measurement command or prestored;

a first measurement module, configured to perform, when the detection result of the second detection module is yes, based on preset first measurement time parameters, inter-frequency cell measurement; and

a second measurement module, configured to perform, when the detection result of the second detection module is no, based on preset second measurement time parameters, inter-frequency cell measurement, wherein the first measurement time parameters comprise a first gap duration, a first gap repetition cycle, and a first minimum available measurement time, the second measurement time parameters comprise a second gap duration, a second gap repetition cycle, and a second minimum available measurement time, and the first gap duration is longer than the second gap duration, and/or the first gap repetition cycle is shorter than the second gap repetition cycle, and/or the first minimum available measurement time is longer than the second minimum available measurement time.

14. A device for inter-frequency cell measurement, the device comprising:

a receiving module, configured to receive a measurement command carrying information about an inter-frequency band sent by a network side device;

a third measurement module, configured to perform, within a first period, based on preset third measurement time parameters, inter-frequency cell measurement; and

a fourth measurement module, configured to perform, within a second period, based on preset fourth measurement time parameters, inter-frequency cell measurement, or suspend inter-frequency cell measurement, wherein the first period and the second period alternately form a continuous time, and the third measurement time parameters are different from the fourth measurement time parameters.

15. The device according to claim 14, further comprising a first timing module and a second timing module, wherein:

the first timing module is configured to provide a first period, and trigger, when the first period ends, the fourth measurement module and the second timing module to start; and

the second timing module is configured to provide a second period, and trigger, when the second period ends, the third measurement module and the first timing module to start.

16. The device according to claim 14, further comprising a first timing module and a third timing module, wherein:

the first timing module is configured to provide a first period, and trigger, when the first period ends, the fourth measurement module to start;

the third timing module is configured to provide a first period and a second period, and trigger, when the second period ends, the third measurement module, the first timing module, and the third timing module itself to start.

17. The device according to claim 14, further comprising:

an identifier determination module, configured to determine whether the measurement command carries a measurement identifier, and if yes, trigger the third measurement module or fourth measurement module to start.

18. A system for inter-frequency cell measurement, the system comprising:

a network side device, configured to send to a terminal a measurement command carrying information about an inter-frequency band; and

a terminal, configured to detect, after receiving the measurement command, whether the signal quality or strength of a serving cell is lower than a second preset value, wherein the second preset value is carried in a measurement command or prestored in the terminal;

if yes, perform, based on preset first measurement time parameters, inter-frequency cell measurement;

if no, perform, based on preset second measurement time parameters, inter-frequency cell measurement, wherein the first measurement time parameters comprise a first gap duration, a first gap repetition cycle, and a first minimum available measurement time, the second measurement time parameters comprise a second gap duration, a second gap repetition cycle, and a second minimum available measurement time, and the first gap duration is longer than the second gap duration, and/or the first gap repetition cycle is shorter than the second gap repetition cycle, and/or the first minimum available measurement time is longer than the second minimum available measurement time.

19. A system for inter-frequency cell measurement, the system comprising:

a network side device, configured to send to a terminal a measurement command carrying information about an inter-frequency band; and

a terminal, configured to perform, after receiving the measurement command, within a first period, based on preset third measurement time parameters, inter-frequency cell measurement; and

perform, within a second period, based on preset fourth measurement time parameters, inter-frequency cell measurement or suspend inter-frequency cell measurement, wherein the first period and the second period alternately form a continuous time, and the third measurement time parameters are different from the fourth measurement time parameters.