Activation and deactivation of component carrier measurements based on thresh-old settings

• US 9,107,227 B2
• Filed: 02/16/2011
• Issued: 08/11/2015
• Est. Priority Date: 02/16/2010
• Status: Active Grant

• Current Assignee: Nokia Technologies Oy (Nokia Corporation)
• Original Assignee: Nokia Technologies Oy (Nokia Corporation)
• Inventors: Dalsgaard, Lars, Koskela, Jarkko, Kaikkonen, Jorma, Henttonen, Tero
• Primary Examiner(s): Jiang, Charles C
• Assistant Examiner(s): CLARK, ROSENE S
• Application Number:
  US13/577,759
• Publication Number:
  US 20120300667A1
• Time in Patent Office: 1,637 Days
• Field of Search: 714748-749, 370/329, 370/328, 370/331, 370/332, 370/350, 370/342, 370/338, 370/336, 370/310, 370/252, 370/235, 4554221-460, 455/69, 455/67.13, 455/67.11, 455/63.1, 455/561, 455/560, 455/522, 455/453, 455/452.2, 455/452.1, 455/445, 455/444, 455/442, 455/435.2, 455/434, 455/425, 455/423, 455/226.2
• US Class Current: 1/1
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04L 5/0073 Allocation arrangements that take into account other cell interferences for intercell interference mitigation or co-ordination in orthogonal multiplex systems H04J11/005
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 36/0069 in case of dual connectivity, e.g. decoupled uplink/downlink
• CPC Class Codes: H04W 36/04 Reselecting a cell layer in multi-layered cells
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

In accordance with an exemplary embodiment of the invention there is at least a method, computer program, and apparatus for receiving over a first component carrier from a serving cell at least one of a first threshold and a second threshold, and performing at least one of: measuring the first component carrier and determining if the measurement exceeds the first threshold, and utilizing the second threshold and determining if a neighboring cell is a potential candidate for scheduling on a second component carrier.

Claims

1. A method comprising:

receiving over a first component carrier from a serving cell a first threshold and a second threshold; and

measuring the first component carrier and determining if the measurement exceeds the first threshold; and

upon determining that the measurement exceeds the first threshold then

utilizing the second threshold and determining if a neighboring cell is a potential candidate for scheduling on a second component carrier.

2. The method of claim 1, where measuring the first component carrier is for a case of receiving the first threshold over the first component carrier, and where if a result of the measuring of the first component carrier exceeds the first threshold then at least one of measuring a second component carrier and initiating a cell search on the second component carrier.

3. The method of claim 2, further comprising initiating a timer, where the tinier controls at least one of initiating the cell search on the second component carrier and providing an interval for the measuring on the second component carrier.

4. The method of claim 2, where if the result of the measuring of the first component carrier does not exceed the first threshold then terminating-measuring the second component carrier and terminating the initiating of the cell search on the second component carrier.

5. The method of claim 1, where the utilizing and the determining, comprises:

measuring at least the neighboring cell; and

determining whether the measurements of the neighboring cell exceed the measurements of a serving cell of the second component carrier by an offset value.

6. The method of claim 5, where for the case that the measurements of the neighboring cell exceeds the measurements of the at least one of the serving cell of the second component carrier by the offset value, sending a measurement report to the serving cell.

7. The method of claim 5, further comprising terminating measurements of at least the neighboring cell if the measurement of the neighboring cell does not exceed the first threshold by an offset value.

8. The method as in claim 1, where measuring comprises initiating cell search measurements and measurements related to at least one of reference signal received power and reference signal received quality activity.

9. A non-transitory computer-readable medium that contains software program instructions, wherein execution of the software program instructions by at least one data processor results in performance of operations that comprise execution of the method according to claim 1.

10. An apparatus, comprising:

at least one processor; and

at least one memory including computer program code, where the at least one memory and the computer program code are configured, with the at least one processor, to cause the apparatus to at least;

receive over a first component carrier from a serving cell a first threshold and a second threshold; and

measure the first component carrier and determine if the measurement exceeds the first threshold; and

upon determining that the measurement exceeds the first threshold then

utilize the second threshold and determine if a neighboring cell is a potential candidate for scheduling on a second component carrier.

11. The apparatus of claim 10, where measuring the first component carrier is for a case of receiving the first threshold over the first component carrier, and where if a result of the measuring of the first component carrier exceeds the first threshold then at least one of measuring a second component carrier and initiating a cell search on the second component carrier.

12. The apparatus of claim 11, further comprising initiating a timer, where the timer controls at least one of initiating the cell search on the second component carrier and providing an interval for the measuring on the second component carrier.

13. The apparatus of claim 11, where the at least one memory including the computer program code is configured, with the at least one processor, if the result of the measuring of the first component carrier does not exceed the first threshold, to cause the apparatus to terminate measuring the second component carrier and terminate initiating the cell search on the second component carrier.

14. The apparatus of claim 10, where the utilizing and the determining are for a case of receiving the second threshold, and where the utilizing and the determining comprises the at least one memory including the computer program code is configured, with the at least one processor, to cause the apparatus to:

measure at least the neighboring cell; and

determine whether the measurements of the neighboring cell exceed the measurements of a serving cell of the second component carrier by an offset value.

15. The apparatus of claim 14, where the at least one memory including the computer program code is configured, with the at least one processor, for the case that the measurements of the neighboring cell exceed the measurements of the serving cell of the second component carrier by the offset value, to cause the apparatus to send a measurement report to the serving cell.

16. The apparatus of claim 14, further comprising the at least one memory including the computer program code is configured, with the at least one processor to cause the apparatus to terminate measurements of the neighboring cell if the measurements of the neighboring cell do not exceed the first threshold by an offset value.

17. The apparatus as in claim 10, where measuring comprises initiating cell search measurements and measurements related to at least one of reference signal received power and reference signal received quality activity.

18. The apparatus as in claim 10, the apparatus is disposed within a mobile platform.

19. An apparatus, comprising:

means for receiving over a first component carrier from a serving cell a first threshold and a second threshold; and

means for measuring the first component carrier and determining if the measurement exceeds the first threshold; and

upon determining that the measurement exceeds the first threshold then

utilizing the second threshold and determining if a neighboring cell is a potential candidate for scheduling on a second component carrier.

20. The apparatus of claim 19, where the means for receiving comprises a receiver, and where the means for measuring, utilizing, and determining comprises at least one computer-readable memory storing at least one program of computer instructions executable by at least one data processor.