User equipment, base station, communication control method, and radio communication system

• US 9,007,938 B2
• Filed: 11/09/2010
• Issued: 04/14/2015
• Est. Priority Date: 11/18/2009
• Status: Expired due to Fees

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Sawai, Ryo, Takano, Hiroaki
• Primary Examiner(s): Chriss, Andrew
• Assistant Examiner(s): Lequang, John
• Application Number:
  US13/508,382
• Publication Number:
  US 20120230217A1
• Time in Patent Office: 1,617 Days
• Field of Search: 370/230, 370/278, 370/311, 370/329, 370/336
• US Class Current: 370/252
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• CPC Class Codes: H04L 5/006 Quality of the received signal, e.g. BER, SNR, water filling
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 28/0268 using specific QoS parameters for wireless networks, e.g. QoS class identifier [QCI] or guaranteed bit rate [GBR] negotiating SLA or negotiating QoS H04W28/24
• CPC Class Codes: H04W 36/30 by measured or perceived connection quality data
• CPC Class Codes: H04W 36/304 due to measured or perceived resources with higher communication quality
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/542 using measured or perceived quality

Abstract

User equipment performs radio communication with a base station over a communication channel formed by aggregating a plurality of component carriers. The user equipment measures a channel quality of the communication channel, and creates a measurement report using a result of the measurement and sends the measurement report to the base station. Each data signal is classified into two or more classes depending on a QoS requirement. The user equipment further receives control information related to a mapping between the plurality of component carriers and the class of each data signal from the base station, and controls at least one of the measurement and the sending of the measurement report, according to a procedure which varies depending on the control information. A base station allocates data to component carriers based on channel quality criteria for different data classifications.

Claims

1. An information processing apparatus for communicating with another information processing apparatus, comprising:

circuitry configured to;

receive quality information including a quality of service requirement for each portion of data of a data set to be transmitted;

select a mapping pattern to allocate each said portion of data of the data set on respective component carriers based on the quality of service requirement for each said portion of data of the data set; and

notify said another information processing apparatus of allocation information that specifies how each said portion of data of the data set is to be allocated on the respective component carriers.

2. The apparatus of claim 1, wherein said circuitry is configured to allocate each said portion of data of the data set differently according to the quality information associated with a data classification for each said portion of data of the data set.

3. The apparatus of claim 1, wherein said circuitry is configured to mix different portions of data from the data set with different quality of service criteria on a common communication channel using carrier aggregation of said respective component carriers.

4. The apparatus of claim 1, wherein said mapping pattern of respective component carriers to each said portion of data of the data set based on the quality of service requirement for each said portion of data of the data set by said circuitry enables dynamic control at said another information processing apparatus from a time of starting channel quality measurement to providing a measurement report to said information processing apparatus.

5. The apparatus of claim 4, wherein

said circuitry is configured to determine whether to perform a handover for said another information processing apparatus based on whether the measurement report indicates that a better channel quality is available to said another information processing apparatus from a peripheral information processing apparatus, said better channel quality being better with respect to a predetermined threshold.

6. The apparatus of claim 5, wherein the predetermined threshold is varied for said respective component carriers.

7. The apparatus of claim 1, wherein:

said circuitry is configured to select said mapping pattern for allocating each said portion of data of the data set on the respective component carriers based on one of a variation of channel quality among the respective component carriers and resource availability of the respective component carriers.

8. The apparatus of claim 7, wherein:

said circuitry is configured to determine the variation of channel quality among the respective component carriers via a preceding channel quality report provided by said another information processing apparatus.

9. The apparatus of claim 7, wherein:

said circuitry is configured to determine the variation of channel quality among the respective component carriers by requesting an auxiliary channel quality report from said another information processing apparatus.

10. The apparatus of claim 1, wherein said circuitry is configured to select said mapping pattern based on a first channel quality report, including channel quality of the respective component carriers, said first channel quality report being received by said circuitry prior to said circuitry selecting said mapping pattern.

11. The apparatus of claim 10,

wherein said circuitry is configured to receive a subsequent channel quality report, including the channel quality of the respective component carriers, and

wherein contents of said subsequent channel quality report vary from contents of the first channel quality report based on said selected mapping pattern.

12. The apparatus of claim 1, wherein said circuitry is configured to

receive a first channel quality report, including channel quality of the respective component carriers, and

select said mapping pattern based on the channel quality of the respective component carriers included in the first channel quality report.

13. The apparatus of claim 12, wherein said circuitry is configured to receive a measurement report, from said another information processing apparatus, based on whether the channel quality of the respective component carriers satisfy a predetermined threshold.

14. The apparatus of claim 1, wherein said circuitry is configured to receive a measurement report, from said another information processing apparatus, based on a criterion which varies based on the selected mapping pattern.

15. A method for controlling communications between an information processing apparatus and another information processing apparatus, comprising:

receiving quality information including a quality of service requirement for each portion of data of a data set to be transmitted;

selecting, using a processor, a mapping pattern to allocate each said portion of data of the data set on respective component carriers based on the quality of service requirement for each said portion of data of the data set; and

notifying said another information processing apparatus of allocation information that specifies how each said portion of data of the data set is to be allocated on respective component carriers.