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RADIO BASE STATION AND MOBILE COMMUNICATION METHOD

  • US 20120063399A1
  • Filed: 03/24/2010
  • Published: 03/15/2012
  • Est. Priority Date: 03/25/2009
  • Status: Active Grant
First Claim
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1. A radio base station comprising:

  • a resource assignment unit configured to assign a resource candidate for transmitting a semi-persistent scheduling transmission acknowledgement signal to a first mobile station during a semi-persistent scheduling bearer setting process, whereinthe resource candidate for transmitting a semi-persistent scheduling transmission acknowledgement signal is a resource candidate formed by a combination of a frequency direction resource and a code direction resource by which the first mobile station transmits a transmission acknowledgement signal after a predetermined timing from a timing of receiving downlink data, to the downlink data that has been scheduled by semi-persistent scheduling and has been transmitted via a downlink data channel, andthe resource assignment unit is configured to assign the resource candidate for transmitting a semi-persistent scheduling transmission acknowledgement signal to the first mobile station based on a number of assignments of predetermined resources formed by a combination of a frequency direction resource and a code direction resource during a semi-persistent scheduling transmission acknowledgement signal transmission period of the first mobile station, and when the downlink data is scheduled by the semi-persistent scheduling, the resource assignment unit is configured to select a resource for transmitting a transmission acknowledgment signal for the downlink data from among the resource candidates for transmitting a semi-persistent scheduling transmission acknowledgement signal.

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