Methods for controlling mobility state evaluation of user equipment and user equipment thereof

• US 20110136522A1
• Filed: 08/12/2009
• Published: 06/09/2011
• Est. Priority Date: 08/12/2008
• Status: Active Grant

• Current Assignee: ZTE Corporation
• Original Assignee: ZTE Corporation
• Inventors: Du, Zhongda, Wu, Hao, Wang, Yaying
• Granted Patent: US 8,738,008 B2
• Time in Patent Office: Days
• US Class Current: 455/500
• CPC Class Codes: H04W 36/00837 Determination of triggering parameters for hand-off
• CPC Class Codes: H04W 36/0085 Hand-off measurements
• CPC Class Codes: H04W 36/324 by mobility data, e.g. speed data
• CPC Class Codes: H04W 48/04 based on user or terminal location or mobility data, e.g. moving direction, speed
• CPC Class Codes: H04W 48/16 Discovering, processing access restriction or access information
• CPC Class Codes: H04W 64/006 with additional information processing, e.g. for direction or speed determination
• CPC Class Codes: H04W 8/245 from a network towards a terminal
• CPC Class Codes: H04W 88/02 Terminal devices

Abstract

The present invention provides methods for controlling mobility state evaluation of user equipment and user equipment thereof. The method comprises the following steps: when the user equipment receives different evaluation parameters in a process of mobility state evaluation, the user equipment explicitly defines the currently set mobility state and a method for the following mobility state evaluation so as to avoid the confusion effectively when executing evaluation. The user equipment comprises a comparing module, an evaluation controlling module and an evaluation executing module, wherein the evaluation executing module comprises of a timer, a counter, an evaluation unit and a mobility state setting unit.

Claims

1. A method for controlling mobility state evaluation of user equipment, comprising:

in a process of mobility state evaluation, if the user equipment receives new evaluation parameters different from currently used evaluation parameters, the user equipment setting the mobility state to be a normal mobility state, updating the currently used evaluation parameters to be the new evaluation parameters, and continuing completing the current mobility state evaluation using the updated evaluation parameters.

2. The method according to claim 1, wherein

the evaluation parameters include timing and a threshold value;

and

the step of continuing completing the current mobility state evaluation using the updated evaluation parameters comprises that;

the user equipment keeps current count value of a counter and resets the timing of a timer according to updated timing;

the counting for the times of the user equipment executing cell reselection or handover is continued before the reset timing arrives; and

the timer is stopped after the reset timing arrives, the current obtained count value of the counter is evaluated using an updated threshold value, and a corresponding mobility state is set according to a result of the evaluation.

3. The method according to claim 2, wherein

the reset timing of the timer is the difference between the updated timing and the timing the timer has currently passed;

wherein

the timing the timer has currently passed is the difference between the timing before being updated and current remaining timing of the timer.

4. The method according to claim 3, wherein the step of continuing completing the mobility state evaluation using the updated evaluation parameters further comprises:

the timer is stopped when the updated timing is not greater than that the timer has currently completed.

5. A user equipment for realizing the method of claim 1, comprising:

a comparing module, an evaluation controlling module and an evaluation executing module, wherein

the comparing module is configured to compare received new evaluation parameters with currently used evaluation parameters, and notify the evaluation controlling module when the new evaluation parameters are different from the currently used evaluation parameters;

the evaluation controlling module is configured to notify the evaluation executing module to update evaluation parameters and reset a mobility state of the user equipment according to the notice from the comparing module; and

the evaluation executing module is configured to update the evaluation parameters, execute mobility state evaluation and reset the mobility state of the user equipment according to the notice from the evaluation controlling module.

6. The user equipment according to claim 5, wherein the evaluation executing module comprises a timer, a counter, an evaluation unit and a mobility state setting unit, wherein

the timer is configured to perform timing according to the timing notified by the evaluation controlling module;

the counter is configured to count the times of the user equipment executing cell reselection or handover within the timing of the timer;

the evaluation unit is configured to evaluate the count value of the counter according to a threshold value notified by the evaluation controlling module when the timer is stopped; and

the mobility state setting unit is configured to reset the mobility state of the user equipment according to the evaluation result of the evaluation unit, and set the mobility state of the user equipment to be a normal mobility state after receiving a mobility state reset notice from the evaluation controlling module.

7. The user equipment according to claim 6, wherein

the evaluation controlling module is further configured to calculate the timing reset by the timer after receiving the notice from the comparing module, and then notify the timer of the reset timing, wherein

the reset timing is the difference between the updated timing and the timing the timer has currently passed, wherein

the timing the timer has currently passed is the difference between the timing before being updated and current remaining timing of the timer.

8. The user equipment according to claim 6, wherein

the evaluation controlling module is further configured to determine whether the updated timing is greater than the timing the timer has currently passed, and notify the timer to stop timing when the updated timing is not greater than the timing the timer has currently passed.

9. A method for controlling mobility state evaluation of user equipment, comprising:

in a process of mobility state evaluation, if the user equipment receives new evaluation parameters different from evaluation parameters used in last mobility state evaluation, the user equipment executing next mobility state evaluation using the newly received evaluation parameters after completing current mobility state evaluation.

10. The method according to claim 9, wherein

the evaluation parameters include time parameters which include trigger time and delay time;

and

the completion of mobility state evaluation refers to the arrival of the time timed by a timer for the trigger time, or the arrival of the time timed by the timer for the delay time.

11. A user equipment for realizing the method of claim 9, comprising:

a comparing module, an evaluation controlling module and an evaluation executing module, wherein

the comparing module is configured to compare received new evaluation parameters with currently used evaluation parameters, and notify the evaluation controlling module when the new evaluation parameters are different from the currently used evaluation parameters;

the evaluation controlling module is configured to notify, after the evaluation executing module completes mobility state evaluation, the evaluation executing module to update evaluation parameters according to the notice newly received from the comparing module during the mobility state evaluation; and

the evaluation executing module is configured to update the evaluation parameters and execute mobility state evaluation according to the notice from the evaluation controlling module.

12. The user equipment according to claim 11, wherein the evaluation executing module comprises a timer, a counter, an evaluation unit and a mobility state setting unit, wherein

the timer is configured to perform timing according to the timing notified by the evaluation controlling module;

the counter is configured to count the times of the user equipment executing cell reselection or handover within the timing of the timer;

the evaluation unit is configured to evaluate the count value of the counter according to a threshold value notified by the evaluation controlling module when the timer is stopped; and

the mobility state setting unit is configured to reset the mobility state of the user equipment according to the evaluation result of the evaluation unit.

13. A method for controlling mobility state evaluation of user equipment, comprising:

if the user equipment receives new evaluation parameters different from currently used evaluation parameters in a process of mobility state evaluation, the user equipment ending the mobility state evaluation, clearing history, updating evaluation parameters, and re-executing mobility state evaluation using the updated evaluation parameters.

14. The method according to claim 13, wherein the step of clearing history comprises:

setting the mobility state to be a normal mobility state; and

resetting a count value and a timer.

15. A user equipment for realizing the method of claim 13, comprising:

a comparing module, an evaluation controlling module and an evaluation executing module, wherein

the comparing module is configured to compare received new evaluation parameters with currently used evaluation parameters, and notify the evaluation controlling module when the new evaluation parameters are different from the currently used evaluation parameters;

the evaluation controlling module is configured to notify the evaluation executing module to clear history and update evaluation parameters after receiving the notice from the comparing module; and

the evaluation executing module is configured to update the evaluation parameters and execute mobility state evaluation according to the notice from the evaluation controlling module.

16. The user equipment according to claim 15, wherein the evaluation executing module comprises a timer, a counter, an evaluation unit and a mobility state setting unit, wherein

the timer is configured to execute a reset according to the notice from the evaluation controlling module and perform timing according to updated timing;

the counter is configured to execute a reset according to the notice from the evaluation controlling module and count the times of the user equipment executing cell reselection or handover within the timing of the timer;

the evaluation unit is configured to evaluate the count value of the counter according to a threshold value notified by the evaluation controlling module when the timer is stopped; and

the mobility state setting unit is configured to reset the mobility state of the user equipment according to the evaluation result of the evaluation unit, and set the mobility state of the user equipment to be a normal mobility state after receiving a mobility state reset notice from the evaluation controlling module.