Abstract
A method and an apparatus for allocating ACKnowledgement (ACK)/Non-ACKnowledgement (NACK) channel resources and processing confirmation information are disclosed. The method includes: The network side determines one physical channel area among multiple physical channel areas to be used by an ACK/NACK channel and notifies the determined physical channel area to a User Equipment (UE) so as to enable the UE to determine a channel for receiving or sending ACK/NACK information in the determined physical channel area according to a mapping rule. Moreover the network side may send or receive ACK/NACK information on the physical channel area that includes the ACK/NACK channel. The method and apparatus improve the utilization ratio and flexibility of the ACK/NACK channel and reduce the probability of conflict generated by the ACK/NACK channel.
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4G | 20/04/2011 | ISLD-201106-001 | HUAWEI | No | Family Member |
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Technologies
Product
Use Cases
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Claim
1. A method comprising:
receiving, by a user equipment from a base station, a physical downlink control channel (PDCCH), wherein the PDCCH indicates a resource for carrying a physical downlink shared channel (PDSCH) on a downlink carrier of at least two downlink carriers and indicates a first physical uplink control channel (PUCCH) area or a second PUCCH area for the PDSCH, wherein at least one of the PUCCH areas comprises at least two PUCCH resources, wherein the first PUCCH area is for carrying ACK/NACK information in a long term evolution (LTE) system, and the second area is for carrying ACK/NACK information in a LTE-A system compatible with the LTE system;
receiving, by the user equipment from the base station, the PDSCH on the downlink carrier of the at least two downlink carriers; and
transmitting, by the user equipment to the base station on a PUCCH resource in the one PUCCH area, acknowledgement or non-acknowledgement (ACK/NACK) in response to the PDSCH.
2. The method according to claim 1, further comprising:
determining, by the user equipment, the PUCCH resource in the indicated PUCCH area according to a mapping rule that determines a PUCCH resource for transmitting ACK/NACK information in a PUCCH area.
3. The method according to claim 2, wherein the first area and the second area correspond to different mapping rules.
4. The method according to claim 3, wherein one mapping rule in the different mapping rules determines the PUCCH resource by a start offset information combined with a sequence number of a control channel element (CCE).
5. The method according to claim 1, wherein
the PUCCH first area and the second PUCCH area do not overlap or partially overlap.
6. An apparatus comprising:
a storage medium including executable instructions; and
a processor;
wherein the executable instructions, when executed by the processor, cause the processor to:
obtain a physical downlink control channel (PDCCH) received from a base station, wherein the PDCCH indicates a resource for carrying a physical downlink shared channel (PDSCH) on a downlink carrier of at least two downlink carriers and indicates a first physical uplink control channel (PUCCH) area or a second PUCCH area for the PDSCH, wherein at least one of the PUCCH areas comprises at least two PUCCH resources, wherein the first PUCCH area is for carrying ACK/NACK information in a long term evolution (LTE) system, and the second area is for carrying ACK/NACK information in a LTE-A system compatible with the LTE system;
obtain the PDSCH received from the base station on the downlink carrier of the at least two downlink carriers; and
determine acknowledgement or non-acknowledgement (ACK/NACK), on a PUCCH resource in the one PUCCH area, in response to the PDSCH.
7. The apparatus according to claim 6, wherein the executable instructions, when executed by the processor, further causes the processor to:
determine the PUCCH resource in the indicated PUCCH area according to a mapping rule, wherein the mapping rule determines a PUCCH resource for transmitting ACK/NACK information in a PUCCH area.
8. The apparatus according to claim 7, wherein the first area and the second area correspond to different mapping rules.
9. The apparatus according to claim 6, wherein
the first PUCCH area and the second PUCCH area do not overlap or partially overlap.
10. A user equipment comprising:
a transmitter,
a receiver, and
a processor coupled to the transmitter and the receiver, wherein the receiver is configured to:
receive, from a base station, a physical downlink control channel (PDCCH), wherein the PDCCH indicates a resource for carrying a physical downlink shared channel (PDSCH) on a downlink carrier of at least two downlink carriers and indicates a first physical uplink control channel (PUCCH) area or a second PUCCH area for the PDSCH, wherein at least one of the PUCCH areas comprises at least two PUCCH resources, wherein the first PUCCH area is for carrying ACK/NACK information in a long term evolution (LTE) system, and the second area is for carrying ACK/NACK information in a LTE-A system compatible with the LTE system; and
receive, from the base station, the PDSCH on the downlink carrier of the at least two downlink carriers;
the processor is configured to: determine acknowledgement or non-acknowledgement (ACK/NACK) in response to the PDSCH; and
the transmitter is configured to: transmit, to the base station on a PUCCH resource in the one PUCCH area, the ACK/NACK in response to the PDSCH.
11. The user equipment according to claim 10, wherein
the processor is configured to determine the PUCCH resource in the indicated PUCCH area according to a mapping rule that determines a PUCCH resource for transmitting ACK/NACK information in a PUCCH area.
12. The user equipment according to claim 11, wherein the first area and the second area correspond to different mapping rules.
13. The user equipment according to claim 12, wherein one mapping rule in the different mapping rules determines the PUCCH resource by a start offset information combined with a sequence number of a control channel element (CCE).
14. The user equipment according to claim 10, wherein
the first area and the second area do not overlap or partially overlap.
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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
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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.