Method for supporting mobility of user equipment in wireless communication system, and device supporting the same

Patent metadata

Field	Value
Publication number	US-9351225-B2
Application number	US-201214348391-A
Country	US
Kind code	B2
Filing date	Oct 9, 2012
Priority date	Oct 9, 2011
Publication date	May 24, 2016
Grant date	May 24, 2016

Abstract

Provided is a method for supporting mobility of a user equipment in a wireless communication system. The method comprises the following steps: receiving Mobility State Estimation (MSE) control information including information for MSE from a network; executing mobility if a mobility condition is satisfied; updating a mobility counter on the basis of the MSE control information; estimating a mobility state of the user equipment on the basis of the updated mobility counter; and scaling a mobility parameter on the basis of the estimated mobility state.

First claim

What is claimed is:

1. A method for supporting mobility performance of a user equipment in a wireless communication system, the method comprising:
receiving mobility state estimation (MSE) control information including information for the MSE from a network;
performing mobility if a condition for the mobility is satisfied;
updating a mobility counter on the basis of the MSE control information;
estimating a mobility state of the user equipment on the basis of the updated mobility counter; and
scaling a mobility parameter on the basis of the estimated mobility state,
wherein the MSE control information includes a prohibit timer value, which indicates a counting threshold value to limit the value of the mobility counter, and duration time in which the counting threshold value is effective,
and wherein the prohibit timer is started with the prohibit timer value included in the MSE control information.

2. The method of claim 1 , wherein updating the mobility counter includes: checking whether the prohibit timer is terminated;
determining whether to perform the update of the mobility counter by comparing the mobility counter and the counting threshold value if the prohibit timer is running;
and increasing the mobility counter by 1, if it is determined that the update of the mobility counter should be performed.

3. The method of claim 2 , wherein determining whether to perform the update of the mobility counter includes determining to update the mobility counter, if the value of the mobility counter is less than the counting threshold value.

4. The method of claim 3 , wherein determining whether to perform the update of the mobility counter includes determining not to update the mobility counter, if the value of the mobility counter is equal to or greater than the counting threshold value.

5. The method of claim 1 , wherein staring up the prohibit timer includes: starting the prohibit timer with the prohibit timer value after the prohibit timer is terminated, if the prohibit timer is currently running.

6. A wireless device operating in a wireless communication system, the wireless device comprising:
a radio frequency (RF) unit to transmit or receive a wireless communication signal, and
a processor functionally connected to the RF unit,
wherein the processor is configured to perform the operations of:
receiving mobility station estimation (MSE) control information including information for the MSE from a network;
performing mobility if the condition for the mobility is satisfied;
updating a mobility counter on the basis of the MSE control information;
estimating a mobility state of the user equipment on the bases of the updated mobility counter; and
scaling a mobility parameter on the basis of the estimated mobility state,
wherein the MSE control information includes a counting threshold value to limit the value of the mobility counter and a prohibit timer value to indicate a duration time in which the counting threshold value is effective, and
wherein the prohibit timer is started with the prohibit timer value included in the MSE control information.

7. The method of claim 6 , wherein updating the mobility counter includes: checking whether the prohibit timer is terminated; determining whether to perform the update of the mobility counter by comparing the mobility counter and the counting threshold value if the prohibit timer is running; and increasing the mobility counter by 1, if it is determined that the update of the mobility counter should be performed.

8. The method of claim 7 , wherein determining whether to perform the update of the mobility counter includes determining to update the mobility counter, if the value of the mobility counter is less than the counting threshold value.

9. The method of claim 8 , wherein determining whether to perform the update of the mobility counter includes determining not to update the mobility counter, if the value of the mobility counter is equal to or greater than the counting threshold value.

10. The method of claim 6 , wherein staring up the prohibit timer includes: starting the prohibit timer with the prohibit timer value after the prohibit timer is terminated, if the prohibit timer is currently running.

Assignees

• Lg Electronics Inc

Inventors

• Jung Sung Hoon
• Yi Seung June
• Lee Young Dae
• Park Sung Jun

Classifications

• H04W48/20

  Selecting an access point · CPC title

• H04W36/08

  Reselecting an access point · CPC title

• H04W36/304

  due to measured or perceived resources with higher communication quality · CPC title

• H04W8/02 Primary

  Processing of mobility data, e.g. registration information at HLR [Home Location Register] or VLR [Visitor Location Register]; Transfer of mobility data, e.g. between HLR, VLR or external networks · CPC title

• H04W36/324 Primary

  by mobility data, e.g. speed data · CPC title