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Communication apparatus and communication method

  • US 9,913,160 B2
  • Filed: 02/04/2016
  • Issued: 03/06/2018
  • Est. Priority Date: 09/06/2007
  • Status: Active Grant
First Claim
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1. A base station apparatus which assigns, to a mobile station apparatus, a physical uplink shared channel by using a physical downlink control channel, the physical uplink shared channel being used for transmitting uplink data, the base station apparatus comprising:

  • a transmitter which is configured to transmit on the physical downlink control channel, to the mobile station apparatus, an indication instructing the mobile station apparatus to transmit reception quality information without the uplink data on the physical uplink shared channel assigned by using the physical downlink control channel, whereinthe indication is specified based on values to which a plurality of fields of information transmitted on the physical downlink control channel are set,one of the plurality of fields is a field used for instructing the mobile station apparatus to transmit the reception quality information and another is a field used for indicating a redundancy version, andfor instructing the mobile station apparatus to transmit the reception quality information without the uplink data on the physical uplink shared channel, the field used for instructing the mobile station apparatus to transmit the reception quality information is set to a first single predetermined value and the field used for indicating the redundancy version is set to a second single predetermined value.

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