WIRELESS COMMUNICATION METHOD, MOBILE STATION APPARATUS, WIRELESS COMMUNICATION SYSTEM AND INTEGRATED CIRCUIT
First Claim
1. A wireless communication method used for a mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers and a plurality of uplink component carriers,in case that downlink component carrier corresponding to the uplink component carrier is set not to be used for downlink communication, the method comprising a step of flushing HARQ buffers of the uplink component carrier associated with the downlink component carrier set not to be used for downlink communication.
1 Assignment
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Accused Products
Abstract
To perform control of PUSCH retransmission efficiently in a wireless communication system where a mobile station apparatus and a base station apparatus communicate with each other using a plurality of downlink component carriers. In a mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers and a plurality of uplink component carriers, in case that the downlink component carrier corresponding to the uplink component carrier is set not to be used for downlink communication, the mobile station apparatus flushes HARQ buffers of the uplink component carrier associated with the downlink component carrier set not to be used for downlink communication.
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Citations
15 Claims
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1. A wireless communication method used for a mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers and a plurality of uplink component carriers,
in case that downlink component carrier corresponding to the uplink component carrier is set not to be used for downlink communication, the method comprising a step of flushing HARQ buffers of the uplink component carrier associated with the downlink component carrier set not to be used for downlink communication.
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2. A mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers and a plurality of uplink component carriers, wherein
in case that the downlink component carrier corresponding to the uplink component carrier is set not to be used for downlink communication, the mobile station apparatus flushes HARQ buffers of the uplink component carrier associated with the downlink component carrier set not to be used for the downlink communication.
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3. A wireless communication system where a mobile station apparatus and a base station apparatus communicate with each other using a plurality of downlink component carriers and a plurality of uplink component carriers, wherein
the mobile station apparatus, in case that the downlink component carrier corresponding to the uplink component carrier is set not to be used for downlink communication, flushes HARQ buffers of the uplink component carrier associated with the downlink component carrier set not to be used for downlink communication, and the base station apparatus judges that, the mobile station apparatus, in case that having set the downlink component carrier corresponding to the uplink component carrier not to be used for downlink communication, has flushed HARQ buffers of the uplink component carrier associated with the downlink component carrier set not to be used for downlink communication.
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4. An integrated circuit used for a mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers and a plurality of uplink component carriers, wherein
in case that the downlink component carrier for the uplink component carrier is set not to be used for downlink communication, the integrated circuit includes a function to flush HARQ buffers of the uplink component carrier associated with the downlink component carrier set not to be used for downlink communication.
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5. A wireless communication method used for a mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers and a plurality of uplink component carriers,
in case that the downlink component carrier corresponding to the uplink component carrier is deactivated, the method comprising a step of flushing HARQ buffers of the uplink component carrier associated with the deactivated downlink component carrier.
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9. A mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers and a plurality of uplink component carriers, wherein
in case that the downlink component carrier corresponding to the uplink component carrier is deactivated, the mobile station apparatus flushes HARQ buffers of the uplink component carrier associated with the deactivated downlink component carrier.
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10. A wireless communication system where a mobile station apparatus and a base station apparatus communicate with each other using a plurality of downlink component carriers and a plurality of uplink component carriers, wherein
the mobile station apparatus, in case that having deactivated said downlink component carrier corresponding to the uplink component carrier, flushes HARQ buffers of the uplink component carrier associated with the deactivated downlink component carrier, and the base station apparatus judges that the mobile station apparatus, in case that having deactivated the downlink component carrier corresponding to said uplink component carrier, has flushed HARQ buffers of the uplink component carrier associated with the deactivated downlink component carrier.
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11. An integrated circuit used for a mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers and a plurality of uplink component carriers, wherein
in case that the downlink component carrier corresponding to the uplink component carrier is deactivated, the integrated circuit includes a function to flush HARQ buffers of the uplink component carrier associated with the deactivated downlink component carrier.
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12. A wireless communication method used for a mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers,
in case that a downlink component carrier on which the mobile station apparatus is to receive a HARQ indicator corresponding to uplink data transmitted to the base station apparatus is deactivated, the method comprising a step of setting ACK without receiving the HARQ indicator.
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13. A mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers, wherein
in case that a downlink component carrier on which the mobile station apparatus is to receive a HARQ indicator corresponding to uplink data transmitted to the base station apparatus is deactivated, the mobile station apparatus sets ACK without receiving the HARQ indicator.
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14. A wireless communication system where a mobile station apparatus and a base station apparatus communicate with each other using a plurality of downlink component carriers, wherein
in case that a downlink component carrier on which the mobile station apparatus is to receive a HARQ indicator corresponding to uplink data which the mobile station apparatus transmitted to the base station apparatus is deactivated, the mobile station apparatus sets ACK without receiving the HARQ indicator, and the base station apparatus judges that the mobile station apparatus has set ACK without receiving the HARQ indicator.
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15. An integrated circuit used for a mobile station apparatus which communicates with a base station apparatus using a plurality of downlink component carriers, wherein
in case that a downlink component carrier on which the mobile station apparatus is to receive a HARQ indicator corresponding to uplink data transmitted to the base station apparatus is deactivated, the integrated circuit includes a function for setting ACK without receiving the HARQ indicator.
Specification