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

• US 9,730,093 B2
• Filed: 12/19/2013
• Issued: 08/08/2017
• Est. Priority Date: 11/18/2009
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Takano, Hiroaki, Sawai, Ryo
• Primary Examiner(s): Chriss, Andrew
• Assistant Examiner(s): Cehic, Kenan
• Application Number:
  US14/135,010
• Publication Number:
  US 20140105013A1
• Time in Patent Office: 1,328 Days
• Field of Search: 370230, 370278, 370311, 370329, 370336
• 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

An information processing apparatus for communicating with another information processing apparatus using a plurality of component carriers, including a receiver configured to receive allocation information that specifies how data to be transmitted is to be allocated among component carriers; and a processing unit configured to execute a process in order to conduct a handover procedure according to the allocation information.

Claims

1. An information processing apparatus, comprising:

a radio communication interface configured to communicate with a first information processing control apparatus over a communication channel formed by aggregating a plurality of component carriers, the radio communication interface being configured to

transmit quality information of each component carrier to the first information processing control apparatus, to determine whether a handover to a second information processing control apparatus by the information processing apparatus should be performed or not using quality information which contains a result of measurement related to a channel quality of the communication channel; and

receive, from the first information processing control apparatus, allocation information that specifies how data to be transmitted is to be allocated among the component carriers according to the quality information of each component carrier,

wherein,

the plurality of component carriers each corresponding to different frequency bands and each including a plurality of resource blocks that are separated within the component carrier based on a combination of time and frequency characteristics, and each of the plurality of resource blocks corresponding to a priority level, and

each data signal transmitted over the communication channel is classified into any of two or more classes depending on a quality-of-service (QoS) requirement thereof,

wherein said allocation information includes information about how data is allocated on component carriers according to one of a plurality of predetermined mapping patterns and based on quality of service criteria, said data is categorized into one of a plurality of quality of service classifications based on a type of content included in the data, and at least one predetermined mapping pattern allocates all of the resource blocks of a single component carrier to data of a single quality of service classification, and at least one predetermined mapping pattern distributes the resource blocks of a single component carrier to multiple quality of service classifications.

2. The information processing apparatus of claim 1, wherein the information processing apparatus includes processing circuitry configured to determine a timing when a measurement starts.

3. The information processing apparatus of claim 1, wherein said radio communication interface sends measurement data to said first information processing control apparatus when said processing circuitry of the information processing apparatus determines that a channel quality available from the second information processing control apparatus is higher than a channel quality from the first information processing control apparatus.

4. The information processing apparatus of claim 3, wherein said radio communication interface sends the measurement data to said first information processing control apparatus when said processing circuitry of the information processing apparatus determines that the channel quality available from the second information processing control apparatus is higher than the channel quality from the first information processing control apparatus by a predetermined threshold amount.

5. The information processing apparatus of claim 3, wherein the processing circuitry determines channel quality for a plurality of the component carriers.

6. The information processing apparatus of claim 3, wherein the processing circuitry determines a start of measurement based on whether the channel quality from the first information processing control apparatus satisfies a predetermined criteria, and compares a quality level of each resource block with a reference value provided by the second information processing control apparatus.

7. The information processing apparatus of claim 6, wherein the processing circuitry starts measurement when respective quality level of resource blocks among the component carriers drop below corresponding predetermined values.

8. The apparatus of claim 1, wherein the data is allocated on component carriers based on quality of service criteria such that data having a highest priority quality of service criteria is allocated to a highest channel quality component carrier.

9. The information processing apparatus according to claim 1, wherein

the classifications including at least classification for a real time based content and a classification for a non-real time based content, and

processing circuitry of the information processing apparatus is configured to perform measurement of a channel quality depending on the one of the predetermined mapping patterns indicated in the allocation information, wherein a different type of measurement is predetermined to be associated with each of the plurality of predetermined mapping patterns.

12. The apparatus of claim 9, wherein each of the predetermined mapping patterns is determined based on a comparison of resource availability and variation of quality.

10. A method, implemented by for an information processing apparatus, comprising:

communicating, by a radio communication interface, with a first information processing control apparatus over a communication channel formed by aggregating a plurality of component carriers;

transmitting, by the radio communication interface, quality information of each component carrier to the first information processing control apparatus, to determine whether a handover to a second information processing control apparatus by the information processing apparatus should be performed or not using quality information which contains a result of measurement related to a channel quality of the communication channel; and

receiving, by the radio communication interface, from the first information processing control apparatus, allocation information that specifies how data to be transmitted is to be allocated among the component carriers according to the quality information of each component carrier,

wherein,

the plurality of component carriers each corresponding to different frequency bands and each including a plurality of resource blocks that are separated within the component carrier based on a combination of time and frequency characteristics, and each of the plurality of resource blocks corresponding to a priority level, and

each data signal transmitted over the communication channel is classified into any of two or more classes depending on a quality-of-service (QoS) requirement thereof,

wherein said allocation information includes information about how data is allocated on component carriers according to one of a plurality of predetermined mapping patterns and based on quality of service criteria, said data is categorized into one of a plurality of quality of service classifications based on a type of content included in the data, and at least one predetermined mapping pattern allocates all of the resource blocks of a single component carrier to data of a single quality of service classification, and at least one predetermined mapping pattern distributes the resource blocks of a single component carrier to multiple quality of service classifications.

11. The method of claim 10, wherein the information processing apparatus determines a timing when a measurement starts.

13. A non-transitory computer readable medium including computer executable instructions, wherein the instructions, when executed by an information processing apparatus, cause the information processing apparatus to perform a method comprising:

communicating, by a radio communication interface, with a first information processing control apparatus over a communication channel formed by aggregating a plurality of component carriers;

transmitting, by the radio communication interface, quality information of each component carrier to the first information processing control apparatus, to determine whether a handover to a second information processing control apparatus by the information processing apparatus should be performed or not using quality information which contains a result of measurement related to a channel quality of the communication channel; and

receiving, by the radio communication interface, from the first information processing control apparatus, allocation information that specifies how data to be transmitted is to be allocated among the component carriers according to the quality information of each component carrier,

wherein,

the plurality of component carriers each corresponding to different frequency bands and each including a plurality of resource blocks that are separated within the component carrier based on a combination of time and frequency characteristics, and each of the plurality of resource blocks corresponding to a priority level, and

each data signal transmitted over the communication channel is classified into any of two or more classes depending on a quality-of-service (QoS) requirement thereof,

wherein said allocation information includes information about how data is allocated on component carriers according to one of a plurality of predetermined mapping patterns and based on quality of service criteria, said data is categorized into one of a plurality of quality of service classifications based on a type of content included in the data, and at least one predetermined mapping pattern allocates all of the resource blocks of a single component carrier to data of a single quality of service classification, and at least one predetermined mapping pattern distributes the resource blocks of a single component carrier to multiple quality of service classifications.