Method, apparatus, and system for measuring aggregated carrier cell

• US 8,774,792 B2
• Filed: 08/02/2012
• Issued: 07/08/2014
• Est. Priority Date: 02/03/2010
• Status: Active Grant

• Current Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Original Assignee: Huawei Technologies Co., Ltd. (Huawei Investment & Holding Co., Ltd.)
• Inventors: Deng, Tianle, Tang, Binsong, Wang, Jun
• Primary Examiner(s): Batista, Marcos
• Application Number:
  US13/565,052
• Publication Number:
  US 20120295610A1
• Time in Patent Office: 705 Days
• Field of Search: 455/522, 455/423, 370/252, 370/329
• US Class Current: 455/423
• CPC Class Codes: H04B 17/318 Received signal strength
• CPC Class Codes: H04L 43/08 Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 52/0245 according to signal strength
• CPC Class Codes: H04W 72/54 based on quality criteria
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A method for measuring an aggregated carrier cell includes: obtaining, by a user equipment, measurement configuration information of an aggregated carrier cell, where the measurement configuration information includes signal estimation value information and a corresponding measurement period thereof; obtaining, by the user equipment, a measurement period of a non-active component carrier according to a signal estimation value of the non-active component carrier in the aggregated carrier cell and the measurement configuration information; and measuring the non-active component carrier according to the measurement period. With the method of the present invention, the user equipment can measure different component carriers in an aggregated carrier cell in different periods.

Claims

1. A method for measuring an aggregated carrier cell configured with multiple component carriers, the method comprising:

obtaining, by a user equipment, a current signal estimation value of a non-active component carrier among the multiple component carriers;

selecting, by the user equipment, a measurement period for the non-active component carrier from a plurality of measurement periods available for the user equipment, according to the current signal estimation value of the non-active component carrier;

performing, by the user equipment, measurement on the non-active component carrier according to the measurement period selected for the non-active component carrier,

wherein the plurality of available measurement periods each has a corresponding relationship with a different signal estimation value range, and the measurement period selected for the non-active component carrier corresponds to the current signal estimation value of the non-active component carrier according to a signal estimation value range for the measurement period selected.

2. The method according to claim 1, wherein the current signal estimation value of the non-active component carrier comprises a current signal power of the non-active component carrier, and wherein the corresponding relationship between each available measurement period and the signal estimation value range comprises a corresponding relationship between the each available measurement period and a signal power range.

3. The method according to claim 2, wherein the current signal power of the non-active component carrier comprises current reference signal receiving power of the non-active component carrier, and the corresponding relationship between each available measurement period and a signal power range comprises a corresponding relationship between the each available measurement period and a reference signal receiving power range.

4. The method according to claim 1, wherein the current signal estimation value of the non-active component carrier comprises current signal quality of the non-active component carrier, and wherein the corresponding relationship between each available measurement period and a signal estimation value range comprises a corresponding relationship between the each available measurement period and a signal quality range.

5. The method according to claim 4, wherein the current signal quality of the non-active component comprises current reference signal receiving quality of the non-active component, and wherein the corresponding relationship the each available measurement period and a signal quality range comprises a corresponding relationship between the each available measurement period and a reference signal receiving quality range.

6. The method according to claim 1, wherein the current signal estimation value of the non-active component carrier comprises a current signal path loss of the non-active component carrier, and wherein the corresponding relationship between each available measurement period and a signal estimation value range comprises a corresponding relationship between the each available measurement period and a signal path loss range.

7. The method according to claim 1, wherein in the obtaining step, the current signal estimation value of the non-active component carrier is obtained through a measurement on the non-active component carrier.

8. The method according to claim 1, wherein in the obtaining step, the current signal estimation value of the non-active component carrier is obtained according to a known signal estimation value of another component carrier among the multiple component carrier of the aggregated carrier cell.

9. A user equipment configured to measure an aggregated carrier cell configured with multiple component carriers, the user equipment comprising:

a first obtaining unit configured to obtain a current signal estimation value of a non-active component carrier among the multiple component carriers;

a second obtaining unit configured to select, according to the current signal estimation value of the non-active component carrier, a measurement period for the non-active component carrier from a plurality of measurement periods available for the user equipment;

a measurement unit configured to perform measurement on the non-active component carrier according to the selected measurement period,

wherein the plurality of available measurement periods each has a corresponding relationship with a different signal estimation value range, and the measurement period selected for the non-active component carrier corresponds to the current signal estimation value of the non-active component carrier according to a signal estimation value range for the measurement period selected.

10. The user equipment according to claim 9, wherein the current signal estimation value of the non-active component carrier comprises a current signal power of the non-active component carrier, and wherein the corresponding relationship between each available measurement period and the signal estimation value range comprises a corresponding relationship between the each available measurement period and a signal power range.

11. The user equipment according to claim 10, wherein the current signal power of the non-active component carrier comprises current reference signal receiving power of the non-active component carrier, and the corresponding relationship between each available measurement period and a signal power range comprises a corresponding relationship between the each available measurement period and a reference signal receiving power range.

12. The user equipment according to claim 9, wherein the current signal estimation value of the non-active component carrier comprises current signal quality of the non-active component carrier, and wherein the corresponding relationship between the each available measurement period and a signal estimation value range comprises a corresponding relationship between the each available measurement period and a signal quality range.

13. The user equipment according to claim 12, wherein the current signal quality of the non-active component comprises current signal receiving quality of the non-active component, and wherein the corresponding relationship the each available measurement period and a signal quality range comprises a corresponding relationship between the each available measurement period and a reference signal receiving quality range.

14. The user equipment according to claim 9, wherein the current signal estimation value of the non-active component carrier comprises a current signal path loss of the non-active component carrier, and wherein the corresponding relationship between the each available measurement period and a signal estimation value range comprises a corresponding relationship between the each available measurement period and a signal path loss range.

15. The user equipment according to claim 9, wherein the obtaining unit is configured to obtain the current signal estimation value through a measurement on the non-active component carrier.

16. The user equipment according to claim 9, wherein the obtaining unit is configured to obtain the current signal estimation value through a known signal estimation value of another component carrier among the multiple component carriers.

17. A communication system supporting carrier aggregation of multiple component carriers, the system comprising:

a user equipment operable to communicatively connect with a base station, wherein the user equipment is configured to;

obtain a current signal estimation value of a non-active component carrier among the multiple component carriers;

select, according to the obtained current signal estimation value, a measurement period for the non-active component carrier from a plurality of measurement periods available for the user equipment; and

perform measurement on the non-active component carrier according to the selected measurement period for the non-active component carrier,

wherein the plurality of available measurement periods each has a corresponding relationship with a different signal estimation value range, and the measurement period selected for the non-active component carrier corresponds to the current signal estimation value of the non-active component carrier according to a signal estimation value range for the measurement period selected.

18. The system according to claim 17, wherein the obtained current signal estimation value of the non-active component carrier comprises a current signal power of the non-active component carrier, and wherein the corresponding relationship between each available measurement period and the signal estimation value range comprises a corresponding relationship between the each available measurement period and a signal power range.

19. The system according to claim 18, wherein the signal power of the non-active component carrier comprises reference signal receiving power of the non-active component carrier, and the corresponding relationship between each available measurement period and a signal power range comprises a corresponding relationship between the each available measurement period and a reference signal receiving power range.

20. The system according to claim 17, wherein the current signal estimation value of the non-active component carrier comprises current signal quality of the non-active component carrier, and wherein the corresponding relationship between each available measurement period and a signal estimation value range comprises a corresponding relationship between the each available measurement period and a signal quality range.

21. The system according to claim 20, wherein the current signal quality of the non-active component comprises current reference signal receiving quality of the non-active component, and wherein the corresponding relationship between the each available measurement period and a signal quality range comprises a corresponding relationship between the each available measurement period and a reference signal receiving quality range.