Radio Base Station And Radio Communication Method Therefor

• US 20100003997A1
• Filed: 05/26/2009
• Published: 01/07/2010
• Est. Priority Date: 07/04/2008
• Status: Abandoned Application

• Current Assignee: Fujitsu Limited
• Original Assignee: Fujitsu Limited
• Inventors: KOYANAGI, Kenichiro
• Application Number:
  US12/472,089
• Publication Number:
  US 20100003997A1
• Time in Patent Office: Days
• US Class Current: 455/450
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0041 Arrangements at the transmitter end
• CPC Class Codes: H04L 1/0071 Use of interleaving interleaving per se H03M13/27
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 5/0005 Time-frequency
• CPC Class Codes: H04L 5/0039 Frequency-contiguous, i.e. with no allocation of frequencies for one user or terminal between the frequencies allocated to another
• CPC Class Codes: H04L 5/0041 Frequency-non-contiguous
• CPC Class Codes: H04W 72/23 in the downlink direction of a wireless link, i.e. towards a terminal
• CPC Class Codes: H04W 72/563 of the wireless resources

Abstract

A radio base station transmits data to a mobile station in the form of error correction coded blocks. To this end, a controller allocates radio resources belonging to a first set of radio resources to one part of a block of data, as well as radio resources belonging to a second set of radio resources to the other part of the block. The first set of radio resources is a set of radio resources assigned to the radio base station for use in data transmission, while the second set of radio resources is a set of radio resources other than the first set of radio resources. A transceiver transmits the block by using the radio resources that the controller has allocated.

Claims

1. A radio base station that transmits data in the form of error correction coded blocks, the radio base station comprising:

a controller which allocates radio resources belonging to a first set of radio resources to one part of a block of data, as well as radio resources belonging to a second set of radio resources to the other part of the block, the first set of radio resources being a set of radio resources assigned to the radio base station for use in data transmission, the second set of radio resources being a set of radio resources other than the first set of radio resources; and

a transmitter which transmits the block by using the radio resources allocated by the controller.

2. The radio base station according to claim 1, wherein, of all radio resources assigned to the radio base station,

the first set of radio resources is defined as a set of resources for use in downlink communication, and

the second set of radio resources is defined as a set of resources for use in uplink communication.

3. The radio base station according to claim 1, wherein, of all radio resources used by said radio base station and other radio base stations,

the first set of radio resources is defined as a set of resources for use by said radio base station, and

the second set of radio resources is defined as a set of resources for use by said other radio base stations.

4. The radio base station according to claim 1, wherein:

the controller determines which modulation method to use, based on a ratio between said one part of the block and said other part of the block in terms of data size; and

the transmitter modulates a carrier signal with the block of data by using the modulation method that the controller has determined.

5. A radio base station that receives data from a mobile station in the form of error correction coded blocks, the radio base station comprising:

a controller which allocates radio resources belonging to a first set of radio resources to one part of a block of data, as well as radio resources belonging to a second set of radio resources to the other part of the block, the first set of radio resources being a set of radio resources assigned to said radio base station for use in data reception, the second set of radio resources being a set of radio resources other than the first set of radio resources; and

a transmitter which transmits to the mobile station a piece of information indicating the radio resources that the controller has allocated.

6. The radio base station according to claim 5, wherein, of all radio resources assigned to the radio base station,

the first set of radio resources is defined as a set of resources for use in uplink communication, and

the second set of radio resources is defined as a set of resources for use in downlink communication.

7. The radio base station according to claim 5, wherein, of all radio resources used by said radio base station and other radio base stations,

the first set of radio resources is defined as a set of resources for use by said radio base station, and

the second set of radio resources is defined as a set of resources for use by said other radio base stations.

8. The radio base station according to claim 5, wherein

the controller determines which modulation method to use, based on a ratio between said one part of the block and said other part of the block in terms of data size;

and

the transmitter modulates a carrier signal with the block of data by using the modulation method that the controller has determined.

9. A method executed by a radio base station to transmit data in the form of error correction coded blocks, the method comprising:

allocating radio resources belonging to a first set of radio resources to one part of a block of data, as well as radio resources belonging to a second set of radio resources to the other part of the block, the first set of radio resources being a set of radio resources assigned to the radio base station for use in data transmission, the second set of radio resources being a set of radio resources other than the first set of radio resources; and

transmitting the block by using the allocated radio resources.

10. A method executed by a radio base station to receive data from a mobile station in the form of error correction coded blocks, the method comprising:

allocating radio resources belonging to a first set of radio resources to one part of a block of data, as well as radio resources belonging to a second set of radio resources to the other part of the block, the first set of radio resources being a set of radio resources assigned to the radio base station for use in data reception, the second set of radio resources being a set of radio resources other than the first set of radio resources; and

transmitting to the mobile station a piece of information indicating the allocated radio resources.