Abstract
Provided are a terminal device and a retransmission control method that make it possible to minimize increases in overhead in an uplink control channel (PUCCH) even if channel selection is used as the method to transmit response signals during carrier-aggregation communication using a plurality of downlink unit bands. On the basis of the generation status of uplink data and error-detection results obtained by a CRC unit a control unit in the provided terminal uses response signal transmission rules to control the transmission of response signals or uplink control signals that indicate the generation of uplink data. If an uplink control signal and a response signal are generated simultaneously within the same transmission time unit the control unit changes the resources allocated to the response signal and/or the phase point of the response signal in accordance with the number and position of ACKs within the error-detection result pattern.
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4G | 06/08/2013 | ISLD-201309-038 | PANASONIC CORP | No | Family Member | ||||
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4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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WO2011039923A1 | 4G | 14/12/2020 | ISLD-202012-017 | SUN PATENT TRUST |
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Technologies
Product
Use Cases
Services
Claim
1. An integrated circuit to control a process, the process comprising:
transmitting, to a terminal configured with one or more downlink component carriers, downlink assignment information indicating resources for downlink data, wherein the resources are respectively assigned to the downlink component carriers;
transmitting the downlink data to the terminal;
receiving a response signal for the downlink data, the response signal being transmitted from the terminal; and
receiving a scheduling request (SR) from the terminal,
wherein:
the response signal denotes an outcome of a decoding of the downlink data, or denotes a Discontinuous Transmission (DTX) representing that the outcome is not transmitted;
when a plurality of downlink component carriers are configured, response signals for a plurality of downlink data in the downlink component carriers, respectively, are transmitted;
when the response signals are transmitted, the response signals are transmitted using a phase point and one of uplink control channel resources for the response signals, which depend on an outcome of the decoding of the plurality of downlink data; and
when both the response signals and the SR are transmitted in a same sub-frame, the response signals are transmitted using a phase point that depends on an outcome of the decoding of the plurality of downlink data and using an uplink control channel resource for the SR.
2. The integrated circuit according to claim 1, comprising:
circuitry which, in operation, controls the process;
at least one input coupled to the circuitry, wherein the at least one input, in operation, inputs the response signal; and
at least one output coupled to the circuitry, wherein the at least one output, in operation, outputs the downlink assignment information.
3. The integrated circuit according to claim 2, wherein when both the response signals and the SR are transmitted in the same sub-frame, a same phase point is used for the response signals that respectively denote an unsuccessful outcome of the decoding or the DTX.
4. The integrated circuit according to claim 2, wherein when both the response signals and the SR are transmitted in the same sub-frame, a same phase point is used for different combinations of the response signals, wherein the different combinations share a same number of one or more response signals that denote a successful outcome of the decoding and also share a same downlink component carrier in which the downlink data is successfully decoded.
5. The integrated circuit according to claim 2, wherein when both the response signals and the SR are transmitted in the same sub-frame, at least some of the response signals are bundled into one response signal.
6. The integrated circuit according to claim 2, wherein when both the response signals and the SR are transmitted in the same sub-frame, the phase point used for the response signals that respectively denote an unsuccessful outcome of the decoding or the DTX is the same as the phase point used for the response signals, one of which denotes a successful outcome of the decoding.
7. The integrated circuit according to claim 2, wherein the transmitting includes transmitting the downlink assignment information on a control channel element (CCE), and an index of the uplink control channel resource for the response signal is associated with a CCE number.
8. The integrated circuit according to claim 2, wherein the transmitting includes transmitting the downlink assignment information on a control channel element (CCE), an index of the uplink control channel resource for the response signal is associated with a CCE number, and the process further comprises signaling an index of the uplink control channel resource for the SR.
9. The integrated circuit according to claim 2, wherein the transmitting includes transmitting the downlink assignment information on a control channel element (CCE), an index of the uplink control channel resource for the response signal is associated with a CCE number, and an index of the uplink control channel resource for the SR is configured by a higher layer.
10. The integrated circuit according to claim 2, wherein the outcome of the decoding is denoted by an Acknowledgement (ACK) or a Negative Acknowledgment (NACK).
11. The integrated circuit according to claim 2, wherein the DTX represents that the downlink assignment information for the downlink data is not detected at the terminal.
12. The integrated circuit according to claim 2, wherein the phase point is a phase point in a binary phase shift keying (BPSK) modulation or in a quadrature phase shift keying (QPSK) modulation.
13. The integrated circuit according to claim 2, wherein a combination of outcomes of the decoding of the plurality of downlink data is associated with the phase point and an index of the uplink control channel resource for the response signal.
14. The integrated circuit according to claim 13, wherein different combinations are respectively associated with different phase points and different resource indexes of the uplink control channel resources for the response signal.
15. The integrated circuit according to claim 2, wherein the at least one output and the at least one input, in operation, are coupled to an antenna.
16. An integrated circuit comprising circuitry, which, in operation:
controls transmission of downlink assignment information and downlink data to a terminal configured with one or more downlink component carriers, wherein the downlink assignment information indicates resources for the downlink data and the resources are respectively assigned to the downlink component carriers; and
controls reception of a response signal and a scheduling request (SR) from the terminal, wherein the response signal is for the downlink data,
wherein:
the response signal denotes an outcome of a decoding of the downlink data, or denotes a Discontinuous Transmission (DTX) representing that the outcome is not transmitted;
when a plurality of downlink component carriers are configured, response signals for a plurality of downlink data in the downlink component carriers, respectively, are transmitted;
when the response signals are transmitted, the response signals are transmitted using a phase point and one of uplink control channel resources for the response signals, which depend on an outcome of the decoding of the plurality of downlink data; and
when both the response signals and the SR are transmitted in a same sub-frame, the response signals are transmitted using a phase point that depends on an outcome of the decoding of the plurality of downlink data and using an uplink control channel resource for the SR.
17. The integrated circuit according to claim 16, comprising:
at least one input coupled to the circuitry, wherein the at least one input, in operation, inputs the response signal; and
at least one output coupled to the circuitry, wherein the at least one output, in operation, outputs the downlink assignment information.
18. The integrated circuit according to claim 17, wherein when both the response signals and the SR are transmitted in the same sub-frame, a same phase point is used for the response signals that respectively denote an unsuccessful outcome of the decoding or the DTX.
19. The integrated circuit according to claim 17, wherein when both the response signals and the SR are transmitted in the same sub-frame, a same phase point is used for different combinations of the response signals, wherein the different combinations share a same number of one or more response signals that denote a successful outcome of the decoding and also share a same downlink component carrier in which the downlink data is successfully decoded.
20. The integrated circuit according to claim 17, wherein when both the response signals and the SR are transmitted in the same sub-frame, at least some of the response signals are bundled into one response signal.
21. The integrated circuit according to claim 17, wherein when both the response signals and the SR are transmitted in the same sub-frame, the phase point used for the response signals that respectively denote an unsuccessful outcome of the decoding or the DTX is the same as the phase point used for the response signals, one of which denotes a successful outcome of the decoding.
22. The integrated circuit according to claim 17, wherein the transmission includes transmission of the downlink assignment information on a control channel element (CCE), and an index of the uplink control channel resource for the response signal is associated with a CCE number.
23. The integrated circuit according to claim 17, wherein the transmission includes transmission of the downlink assignment information on a control channel element (CCE), an index of the uplink control channel resource for the response signal is associated with a CCE number, and the circuitry, in operation, controls signaling of an index of the uplink control channel resource for the SR.
24. The integrated circuit according to claim 17, wherein the transmission includes transmission of the downlink assignment information on a control channel element (CCE), an index of the uplink control channel resource for the response signal is associated with a CCE number, and an index of the uplink control channel resource for the SR is configured by a higher layer.
25. The integrated circuit according to claim 17, wherein the outcome of the decoding is denoted by an Acknowledgement (ACK) or a Negative Acknowledgment (NACK).
26. The integrated circuit according to claim 17, wherein the DTX represents that the downlink assignment information for the downlink data is not detected at the terminal.
27. The integrated circuit according to claim 17, wherein the phase point is a phase point in a binary phase shift keying (BPSK) modulation or in a quadrature phase shift keying (QPSK) modulation.
28. The integrated circuit according to claim 17, wherein a combination of outcomes of the decoding of the plurality of downlink data is associated with the phase point and an index of the uplink control channel resource for the response signal.
29. The integrated circuit according to claim 28, wherein different combinations are respectively associated with different phase points and different resource indexes of the uplink control channel resources for the response signal.
30. The integrated circuit according to claim 17, wherein the at least one output and the at least one input, in operation, are coupled to an antenna.
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The information in blue was extracted from the third parties (Standard Setting Organisation, Espacenet)
The information in grey was provided by the patent holder
The information in purple was extracted from the FrandAvenue
Explicitly disclosed patent:openly and comprehensibly describes all details of the invention in the patent document.
Implicitly disclosed patent:does not explicitly state certain aspects of the invention, but still allows for these to be inferred from the information provided.
Basis patent:The core patent in a family, outlining the fundamental invention from which related patents or applications originate.
Family member:related patents or applications that share a common priority or original filing.