COMMUNICATION SYSTEM AND MOBILE STATION APPARATUS

• US 20110317577A1
• Filed: 11/09/2009
• Published: 12/29/2011
• Est. Priority Date: 12/26/2008
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Yamada, Shohei, Uemura, Katsunari, Kato, Yasuyuki, Nakashima, Daiichiro, Oh, Waho
• Granted Patent: US 8,605,616 B2
• Time in Patent Office: Days
• US Class Current: 370/252
• CPC Class Codes: H04L 25/0202 Channel estimation
• CPC Class Codes: H04L 27/2601 Multicarrier modulation systems
• CPC Class Codes: H04W 24/10 Scheduling measurement reports ; Arrangements for measurement reports
• CPC Class Codes: H04W 36/0085 Hand-off measurements
• CPC Class Codes: H04W 36/0094 Definition of hand-off measurement parameters
• CPC Class Codes: H04W 72/00 Local resource management
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/51 based on terminal or device properties
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Provided are a communication system, a base station apparatus, a mobile station apparatus, and a communication method which can effectively manage measurement information held by a base station apparatus and a mobile station apparatus in a system comprising a plurality of component carriers. The mobile station apparatus is used in a mobile communication system configured by a base station apparatus and a mobile station apparatus. For a plurality of cells with the cell having different frequency, a reference cell with respect to an object to be measured is defined as a measurement reference cell when executing a measurement. The mobile station apparatus specifies one or more of the measurement reference cell for the object to be measured and executes a measurement of the object to be measured for the specified one or more of the measurement reference cell.

Claims

1-12. -12. (canceled)

13. A mobile station apparatus in a communication system comprising a base station apparatus and a mobile station apparatus, wherein

at the time of communication by carrier aggregation using a plurality of cells with each cell having different frequency, the mobile station apparatus determines a measurement reference cell used for an evaluation of event triggering criteria from among the plurality of the cells based on an measurement object linked to reporting configurations that indicate event triggering criteria used for a measurement report.

14. A mobile station apparatus according to claim 13, wherein

the mobile station apparatus evaluates the event triggering criteria using measurement results for the measurement reference cell and reports measurement results to the base station apparatus when the event triggering criteria are satisfied.

15. A mobile station apparatus according to claim 13, wherein

the mobile station apparatus evaluates the event triggering criteria using a specific offset value for a cell that is not determined as the measurement reference cell and reports measurement results to the base station apparatus when the event triggering criteria are satisfied.

16. A mobile station apparatus according to claim 15, wherein

the mobile station apparatus evaluates the event triggering criteria using a specific offset value for the measurement reference cells and reports measurement results to the base station apparatus when the event triggering criteria are satisfied.

17. A mobile station apparatus according to claim 13, wherein

the mobile station apparatus determines a measurement reference cell used for an evaluation of event triggering criteria from among the plurality of the cells based on the frequency to be measured.

18. A base station apparatus in a communication system comprising a base station apparatus and a mobile station apparatus, wherein

at the time of communication by carrier aggregation using a plurality of cells with each cell having different frequency,

the base station apparatus makes the mobile station apparatus determine a measurement reference cell used for an evaluation of event triggering criteria, by the configurations of reporting configurations that indicate event triggering criteria used for a measurement report, an measurement object linked to reporting configurations and the plurality of cells.

19. A management method in a mobile station apparatus in a communication system comprising a base station apparatus and a mobile station apparatus, wherein

a measurement reference cell used for an evaluation of event triggering criteria is determined from among the plurality of the cells based on an measurement object linked to reporting configurations that indicate event triggering criteria used for a measurement report at the time of communication by carrier aggregation using the plurality of cells with each cell having different frequency.

20. A processing section that executes the management method according to claim 19, wherein

the processing section executes the management method by using a plurality of processing block sections and a higher block section that integrates to control the plurality of the processing block sections.

21. A mobile station apparatus in a communication system comprising a base station apparatus and a mobile station apparatus, wherein

for a plurality of cells with each cell having different frequency, the mobile station apparatus considers a reference cell for a measurement object at the time of performing measurements as a measurement reference cell, one or a plurality of the measurement reference cells for the measurement object are indicated from the base station apparatus, and the mobile station apparatus performs the measurements of the measurement object for the indicated one or a plurality of the measurement reference cells.

22. A mobile station apparatus in a communication system comprising a base station apparatus and a mobile station apparatus, wherein

for a plurality of cells with each cell having different frequency, one or a plurality of the measurement reference cells for a measurement object are indicated from the base station apparatus, and the mobile station apparatus performs the measurements by applying an offset value corresponding to a frequency of a cell as a reference for a measurement object at the time of performing measurements.

23. A communication system comprising a base station apparatus and a mobile station apparatus, wherein

for a plurality of cells with each cell having different frequency, the mobile station apparatus considers a reference cell for a measurement object at the time of performing measurements as a measurement reference cell, one or a plurality of the measurement reference cells for the measurement object are indicated from the base station apparatus, and performs the measurements of the measurement object for the indicated one or a plurality of the measurement reference cells.

24. A communication system comprising a base station apparatus and a mobile station apparatus, wherein

for a plurality of cells with each cell having different frequency, the mobile station apparatus is indicated one or a plurality of the measurement reference cells for a measurement object from the base station apparatus, and performs the measurements by applying an offset value corresponding to a frequency of a cell as a reference for a measurement object at the time of performing measurements.

25. A communication system comprising a base station apparatus and a mobile station apparatus, wherein

at the time of communication by carrier aggregation using a plurality of cells with each cell having different frequency, the mobile station apparatus determines a measurement reference cell used for an evaluation of event triggering criteria from among a plurality of the cells based on an measurement object linked to reporting configurations that indicate event triggering criteria used for a measurement report.