Communication method, mobile station apparatus, base station apparatus and mobile communication system
In case that a base station apparatus and a mobile station apparatus use a plurality of component carriers to communicate with each other, they effectively transmit and receive HARQ control information. At least one physical downlink control channel on at least a first downlink component carrier attempts to be decoded, and, in case that one physical downlink control channel corresponding to one physical downlink shared channel transmission on a second downlink component carrier other than the first downlink component carrier is detected, the HARQ control information is transmitted to the base station apparatus using a first physical uplink control channel resource whereas, in case that one physical downlink control channel corresponding to one physical downlink shared channel transmission on the first downlink component carrier is detected, the HARQ control information is transmitted to the base station apparatus using a second physical uplink control channel resource.
1. A mobile station apparatus which communicates with a base station apparatus using a plurality of component carriers and transmits Hybrid Automatic Repeat Request (HARQ) control information for a physical downlink shared channel transmission indicated by a detection of a corresponding physical downlink control channel, the mobile station apparatus comprising:
a decoding unit configured to attempt to decode at least one physical downlink control channel on at least a first downlink component carrier; and
a transmitting unit configured to transmit, to the base station apparatus, the HARQ control information using a first physical uplink control channel resource, the first physical uplink control channel resource being used for the transmission of the HARQ control information for the physical downlink shared channel transmission on a second downlink component carrier other than the first downlink component carrier, the physical downlink shared channel transmission on the second downlink component carrier being indicated by the detection of the corresponding physical downlink control channel, wherein
the transmitting unit is configured to transmit, to the base station apparatus, the HARQ control information using a second physical uplink control channel resource, the second physical uplink control channel resource being used for the transmission of the HARQ control information for the physical downlink shared channel transmission only on the first downlink component carrier, the physical downlink shared channel transmission only on the first downlink component carrier being indicated by the detection of the corresponding physical downlink control channel.
2. The mobile station apparatus according to claim 1 , wherein
the transmitting unit is configured to transmit, to the base station apparatus, the HARQ control information using the first physical uplink control channel resource, the first physical uplink control channel resource being used for the transmission of the HARQ control information for a plurality of physical downlink shared channel transmissions, each of the purality of physical downlink shared channel transmissions being indicated by the detection of the corresponding physical downlink control channel.
3. The mobile station apparatus according to claim 1 , wherein
the first downlink component carrier is indicated by the base station apparatus using a radio resource control signal.
4. The mobile station apparatus according to claim 1 , wherein
the first downlink component carrier is a downlink component carrier corresponding to an uplink component carrier on which the HARQ control information is transmitted using a physical uplink control channel.
5. The mobile station apparatus according to claim 1 , wherein
the first downlink component carrier is a downlink component carrier on which the mobile station apparatus performs an initial connection establishment.
6. The mobile station apparatus according to claim 1 , wherein
the HARQ control information includes information indicating a positive acknowledgment or a negative acknowledgment for a downlink transport block.
7. A communication method of a mobile station apparatus which communicates with a base station apparatus using a plurality of component carriers and transmits Hybrid Automatic Repeat Request (HARQ) control information for a physical downlink shared channel transmission indicated by a detection of a corresponding physical downlink control channel, the communication method comprising:
attempting to decode at least one physical downlink control channel on at least a first downlink component carrier;
transmitting, to the base station apparatus, the HARQ control information using a first physical uplink control channel resource, the first physical uplink control channel resource being used for the transmission of the HARQ control information for the physical downlink shared channel transmission on a second downlink component carrier other than the first downlink component carrier, the physical downlink shared channel transmission on the second downlink component carrier being indicated by the detection of the corresponding physical downlink control channel; and
transmitting, to the base station apparatus, the HARQ control information using a second physical uplink control channel resource, the second physical uplink control channel resource being used for the transmission of the HARQ control information for the physical downlink shared channel transmission only on the first downlink component carrier, the physical downlink shared channel transmission only on the first downlink component carrier being indicated by the corresponding physical downlink control channel.
8. The communication method according to claim 7 , wherein
the first downlink component carrier is indicated by the base station apparatus using a radio resource control signal.
9. The communication method according to claim 7 , wherein
the first downlink component carrier is a downlink component carrier corresponding to an uplink component carrier on which the HARQ control information is transmitted using a physical uplink control channel.
10. The communication method according to claim 7 , wherein
the first downlink component carrier is a downlink component carrier on which the mobile station apparatus performs an initial connection establishment.
11. The communication method according to claim 7 , wherein
the HARQ control information includes information indicating a positive acknowledgment or a negative acknowledgment for a downlink transport block.
12. A mobile station apparatus which communicates with a base station apparatus using a plurality of component carriers and transmits Hybrid Automatic Repeat Request (HARQ) control information for a physical downlink shared channel transmission indicated by a detection of a corresponding physical downlink control channel, the mobile station apparatus comprising:
a decoding unit configured to attempt to decode at least one physical downlink control channel on at least a first downlink component carrier; and
a transmitting unit configured to transmit, to the base station apparatus, the HARQ control information using a first physical uplink control channel format, the first physical uplink control channel format being used for the transmission of the HARQ control information for the physical downlink shared channel transmission on a second downlink component carrier other than the first downlink component carrier, the physical downlink shared channel transmission on the second downlink component carrier being indicated by the detection of the corresponding physical downlink control channel, wherein
the transmitting unit is configured to transmit, to the base station apparatus, the HARQ control information using a second physical uplink control channel format, the second physical uplink control channel format being used for the transmission of the HARQ control information for the physical downlink shared channel transmission only on the first downlink component carrier, the physical downlink shared channel transmission only on the first downlink component carrier being indicated by the detection of the corresponding physical downlink control channel.
13. The mobile station apparatus according to claim 12 , wherein
the transmitting unit is configured to transmit, to the base station apparatus, the HARQ control information using the first physical uplink control channel format, the first physical uplink control channel format being used for the transmission of the HARQ control information for a plurality of physical downlink shared channel transmissions, each of the plurality of physical downlink shared channel transmissions being indicated by the detection of the corresponding physical downlink control channel.
14. The mobile station apparatus according to claim 12 , wherein
the first downlink component carrier is indicated by the base station apparatus using a radio resource control signal.
15. The mobile station apparatus according to claim 12 , wherein
the first downlink component carrier is a downlink component carrier corresponding to an uplink component carrier on which the HARQ control information is transmitted using a physical uplink control channel.
16. The mobile station apparatus according to claim 12 , wherein
the first downlink component carrier is a downlink component carrier on which the mobile station apparatus performs an initial connection establishment.
17. The mobile station apparatus according to claim 12 , wherein
the HARQ control information includes information indicating a positive acknowledgment or a negative acknowledgment for a downlink transport block.
18. A communication method of a mobile station apparatus which communicates with a base station apparatus using a plurality of component carriers and transmits Hybrid Automatic Repeat Request (HARQ) control information for a physical downlink shared channel transmission indicated by a detection of a corresponding physical downlink control channel, the communication method comprising:
attempting to decode at least one physical downlink control channel on at least a first downlink component carrier;
transmitting, to the base station apparatus, the HARQ control information using a first physical uplink control channel format, the first physical uplink control channel format being used for the transmission of the HARQ control information for the physical downlink shared channel transmission on a second downlink component carrier other than the first downlink component carrier, the physical downlink shared channel transmission on the second downlink component carrier being indicated by the detection of the corresponding physical downlink control channel; and
transmitting, to the base station apparatus, the HARQ control information using a second physical uplink control channel format, the second physical uplink control channel format being used for the transmission of the HARQ control information for the physical downlink shared channel transmission only on the first downlink component carrier, the physical downlink shared channel transmission only on the first downlink component carrier being indicated by the corresponding physical downlink control channel.
19. The communication method according to claim 18 , wherein
the first downlink component carrier is indicated by the base station apparatus using a radio resource control signal.
20. The communication method according to claim 18 , wherein
the first downlink component carrier is a downlink component carrier corresponding to an uplink component carrier on which the HARQ control information is transmitted using a physical uplink control channel.
21. The communication method according to claim 18 , wherein
the first downlink component carrier is a downlink component carrier on which the mobile station apparatus performs an initial connection establishment.
22. The communication method according to claim 18 , wherein
the HARQ control information includes information indicating a positive acknowledgment or a negative acknowledgment for a downlink transport block.