Method and apparatus for updating measurement identity and system

Patent metadata

Field	Value
Publication number	US-9949312-B2
Application number	US-201615235943-A
Country	US
Kind code	B2
Filing date	Aug 12, 2016
Priority date	Feb 20, 2014
Publication date	Apr 17, 2018
Grant date	Apr 17, 2018

Abstract

A method and apparatus for updating a measurement identity and a system. The method includes: checking each measurement identity in a measurement identity list included in a pre-stored measurement configuration variable by terminal equipment after performing connection reconfiguration or connection re-establishment; and removing the measurement identity from the measurement configuration variable by the terminal equipment, if reporting configuration associated with the measurement identity includes a measurement event related to a frequency at which a cell belonging to a secondary cell group of the terminal equipment is operating and a measurement object related to the measurement event no longer satisfies a requirement of the measurement event or a cell for comparing in the measurement event no longer exists. With the method of the embodiments of the present disclosure, meaningless measurement by the terminal equipment is reduced, power consumption is lowered, and interference on normal communications is reduced.

First claim

What is claimed is:

1. A method for updating a measurement identity, comprising:
checking each measurement identity in a measurement identity list included in a pre-stored measurement configuration variable by terminal equipment after performing connection reconfiguration or connection re-establishment; and
removing the measurement identity from the pre-stored measurement configuration variable by the terminal equipment, if reporting configuration associated with the measurement identity includes a measurement event related to a frequency which a serving cell in a secondary cell group of the terminal equipment is on and the serving cell for comparing in the measurement event is not configured;
wherein the measurement event related to the frequency which the serving cell in the secondary cell group of the terminal equipment is on is that:
a measurement result of a neighboring cell of the serving cell is better than a sum of a measurement result of a primary secondary cell and a predefined offset value; or
a measurement result of a neighboring cell of the serving cell is better than a first threshold value, and at the same time, a measurement result of a primary secondary cell is worse than a second threshold value.

2. The method according to claim 1 , wherein if a pre-stored measurement report list variable includes a measurement report record to which the measurement identity corresponds, the method further comprises:
removing the measurement report record to which the measurement identity corresponds from the pre-stored measurement report list variable by the terminal equipment.

3. The method according to claim 1 , wherein if a timer corresponding to the measurement identity is running, the method further comprises:
stopping the timer which is running and corresponds to the measurement identity, and resetting information related to the measurement identity.

4. The method according to claim 1 , wherein the measurement event related to a frequency which a serving cell in a secondary cell group of the terminal equipment is on is that:
a measurement result of the serving cell is better than a third threshold value; or
a measurement result of the serving cell is worse than a fourth threshold value.

5. The method according to claim 1 , wherein a serving cell triggering the measurement event is on a frequency indicated by the measurement object; and
wherein the frequency indicated by the measurement object comprises:
a frequency which a serving cell in a secondary cell group or in a secondary base station of the terminal equipment is on other than the frequency which the primary secondary cell is on; or
a frequency which a serving cell in a secondary cell group or in a secondary base station of the terminal equipment is on; or
a frequency which a serving cell in a primary cell group or in a primary base station of the terminal equipment is on; or
a frequency which the terminal equipment is operating on other than a frequency which a primary cell is on; or
a frequency which the terminal equipment is operating on other than a frequency which a primary secondary cell is on; or
a frequency which the terminal equipment is operating on other than a frequency which a primary cell and a primary secondary cell are on.

6. The method according to claim 1 , wherein the terminal equipment performs the connection reconfiguration or connection re-establishment in a dual-connectivity architecture.

7. The method according to claim 6 , wherein after the connection reconfiguration is performed,
a primary cell of the terminal equipment does not change, but a secondary base station changes; or,
the primary cell of the terminal equipment does not change, the secondary base station does not change, but the primary secondary cell changes; or,
the primary cell and the primary secondary cell of the terminal equipment do not change, but a normal secondary cell changes; or,
the primary cell of the terminal equipment does not change, but the dual-connectivity architecture does not exist any longer; or,
the primary cell of the terminal equipment changes.

8. The method according to claim 6 , wherein after the connection re-establishment is performed, the terminal equipment has only one serving cell, that is, a primary cell.

9. An apparatus for updating a measurement identity, applicable to terminal equipment, wherein the apparatus comprises:
a checking unit configured to check each measurement identity in a measurement identity list included in a pre-stored measurement configuration variable after the terminal equipment performs connection reconfiguration or connection re-establishment; and
a processing unit configured to remove the measurement identity from the pre-stored measurement configuration variable, if reporting configuration associated with the measurement identity includes a measurement event related to a frequency which a serving cell in a secondary cell group of the terminal equipment is on and the serving cell for comparing in the measurement event is not configured,
wherein the measurement event related to the frequency which the serving cell in the secondary cell group of the terminal equipment is on is that:
a measurement result of a neighboring cell of the serving cell is better than a sum of a measurement result of a primary secondary cell and a predefined offset value; or
a measurement result of a neighboring cell of the serving cell is better than a first threshold value, and at the same time, a measurement result of a primary secondary cell is worse than a second threshold value.

10. The apparatus according to claim 9 , wherein the processing unit is further configured to remove the measurement report record to which the measurement identity corresponds from the pre-stored measurement report list variable when a pre-stored measurement report list variable includes a measurement report record to which the measurement identity corresponds.

11. The apparatus according to claim 9 , wherein the processing unit is further configured to stop a timer which is running and corresponds to the measurement identity, and reset information related to the measurement identity, when the timer corresponding to the measurement identity is running.

12. The apparatus according to claim 9 , wherein the measurement event related to a frequency which a serving cell in a secondary cell group of the terminal equipment is on is that:
a measurement result of the serving cell is better than a third threshold value; or
a measurement result of the serving cell is worse than a fourth threshold value.

13. The apparatus according to claim 9 , wherein a serving cell triggering the measurement event is on a frequency indicated by the measurement object; and wherein the frequency indicated by the measurement object comprises:
a frequency which a serving cell in a secondary cell group or in a secondary base station of the terminal equipment is on other than the frequency which the primary secondary cell is on; or
a frequency which a serving cell in a secondary cell group or in a secondary base station of the terminal equipment is on; or
a frequency which a serving cell in a primary cell group or in a primary base station of the terminal equipment is on; or
a frequency of the terminal equipment is operating on other than a frequency which a primary cell is on; or
a frequency of the terminal equipment is operating on other than a frequency which a primary secondary cell is on; or
a frequency of the terminal equipment is operating on other than a frequency which a primary cell and a primary secondary cell are on.

14. The apparatus according to

Assignees

• Fujitsu Ltd

Inventors

• Lu Yanling
• Xu Haibo

Classifications

• H04W52/0209

  in terminal devices · CPC title

• H04J11/005

  of intercell interference · CPC title

• H04W76/19 Primary

  Connection re-establishment · CPC title

• H04L47/29

  using a combination of thresholds · CPC title

• H04W24/10 Primary

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title