Methods and apparatus to limit reporting of neighbor cell measurements

• US 9,161,245 B2
• Filed: 09/06/2013
• Issued: 10/13/2015
• Est. Priority Date: 08/13/2010
• Status: Active Grant

• Current Assignee: Malikie Innovations Limited (Key Patent Innovations Limited)
• Original Assignee: Blackberry Limited
• Inventors: Suzuki, Takashi, Cai, Zhijun, Li, Jun, Arora, Dinesh Kumar
• Primary Examiner(s): Ngo, Ricky
• Assistant Examiner(s): SAMUEL, DEWANDA A
• Application Number:
  US14/020,589
• Publication Number:
  US 20140004847A1
• Time in Patent Office: 767 Days
• Field of Search: 370/241, 370/252, 370/345, 370/277, 370/496, 370/500
• US Class Current: 1/1
• CPC Class Codes: H04W 24/02 Arrangements for optimising operational condition
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 48/12 using downlink control channel
• CPC Class Codes: H04W 52/14 Separate analysis of uplink or downlink
• CPC Class Codes: H04W 72/1273 of downlink data flows
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal

Abstract

Methods and apparatus to limit reporting of neighbor cell measurements are disclosed. Example disclosed methods include processing, at a wireless device, configuration information for periodic downlink pilot measurements, wherein the configuration information is associated with a number of neighbor cells for which periodic downlink pilot measurements are permitted to be stored and reported, and wherein the number of neighbor cells includes a first number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported. In some such examples, the configuration information is further associated with a second number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported, and a third number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported. Such example methods can also include storing, at the wireless device, the periodic downlink pilot measurements in accordance with the configuration information.

Claims

1. A method comprising:

processing, at a wireless device, configuration information for periodic downlink pilot measurements, wherein the configuration information is associated with numbers of neighbor cells for which periodic downlink pilot measurements are permitted to be stored and reported, wherein the numbers of neighbor cells includes a first number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported, and wherein the configuration information is further associated with;

a second number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported; and

a third number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported; and

storing, at the wireless device, the periodic downlink pilot measurements in accordance with the configuration information.

2. A method as defined in claim 1, wherein the configuration information is further associated with absolute priority layer configuration information.

3. A method as defined in claim 1, wherein the configuration information is further associated with an offset to adjust periodic downlink pilot measurements associated with a specified neighbor cell.

4. A method as defined in claim 1, wherein the configuration information is further associated with an indication indicating whether received signal strength indication (RSSI) is to be measured when periodic downlink pilot measurements are performed during public land mobile network (PLMN) scanning, and wherein the method further comprises logging at least one of an RSSI measurement, a frequency, a PLMN identity or a list of cell identities for a detected PLMN if the indication indicates RSSI is to be measured.

5. A method as defined in claim 1, wherein storing the periodic downlink pilot measurements in accordance with the configuration information comprises logging the periodic downlink pilot measurements according to the numbers of neighbor cells.

16. A method as defined in claim 1, wherein the second number of neighbor cells is different from the first number of neighbor cells.

17. A method as defined in claim 16, wherein the third number of neighbor cells is different from the first number of neighbor cells and from the second number of neighbor cells.

6. A tangible machine readable medium comprising instructions which, when executed, cause a wireless device to at least:

process configuration information for periodic downlink pilot measurements, wherein the configuration information is associated with numbers of neighbor cells for which periodic downlink pilot measurements are permitted to be stored and reported, wherein the numbers of neighbor cells includes a first number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported, and wherein the configuration information is further associated with;

a second number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported; and

a third number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported; and

store the periodic downlink pilot measurements in accordance with the configuration information.

7. A tangible machine readable medium as defined in claim 6, wherein the configuration information is further associated with absolute priority layer configuration information.

8. A tangible machine readable medium as defined in claim 6, wherein the configuration information is further associated with an offset to adjust periodic downlink pilot measurements associated with a specified neighbor cell.

9. A tangible machine readable medium as defined in claim 6, wherein the configuration information is further associated with an indication indicating whether received signal strength indication (RSSI) is to be measured when periodic downlink pilot measurements are performed during public land mobile network (PLMN) scanning, and wherein the instructions, when executed, further cause the wireless device to log at least one of an RSSI measurement, a frequency, a PLMN identity or a list of cell identities for a detected PLMN if the indication indicates RSSI is to be measured.

10. A tangible machine readable medium as defined in claim 6, wherein to store the periodic downlink pilot measurements in accordance with the configuration information, the instructions, when executed, further cause the wireless device to log the periodic downlink pilot measurements according to the numbers of neighbor cells.

18. A tangible machine readable medium as defined in claim 6, wherein the second number of neighbor cells is different from the first number of neighbor cells.

19. A tangible machine readable medium as defined in claim 18, wherein the third number of neighbor cells is different from the first number of neighbor cells and from the second number of neighbor cells.

11. A wireless device comprising:

a processor to process configuration information for periodic downlink pilot measurements, wherein the configuration information is associated with numbers of neighbor cells for which periodic downlink pilot measurements are permitted to be stored and reported, wherein the numbers of neighbor cells includes a first number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported, and wherein the configuration information is further associated with;

a second number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported; and

a third number of neighbor cells for which periodic downlink pilot measurements are permitted to be reported; and

a memory to store the periodic downlink pilot measurements.

12. A wireless device as defined in claim 11, wherein the configuration information is further associated with absolute priority layer configuration information.

13. A wireless device as defined in claim 11, wherein the configuration information is further associated with an offset to adjust periodic downlink pilot measurements associated with a specified neighbor cell.

14. A wireless device as defined in claim 11, wherein the configuration information is further associated with an indication indicating whether received signal strength indication (RSSI) is to be measured when periodic downlink pilot measurements are performed during public land mobile network (PLMN) scanning, and wherein the method further comprises logging at least one of an RSSI measurement, a frequency, a PLMN identity or a list of cell identities for a detected PLMN if the indication indicates RSSI is to be measured.

15. A wireless device as defined in claim 11, wherein to store the periodic downlink pilot measurements in accordance with the configuration information, the processor is further to log the periodic downlink pilot measurements according to the number of neighbor cells.

20. A wireless device as defined in claim 11, wherein the second number of neighbor cells is different from the first number of neighbor cells, and the third number of neighbor cells is different from the first number of neighbor cells and from the second number of neighbor cells.