Physical uplink control channel (PUCCH) resource allocation (RA) for a hybrid automatic retransmission re-quest-acknowledge (HARQ-ACK) transmission
First Claim
Patent Images
1. An apparatus of a user equipment (UE), comprising:
- memory; and
one or more processors configured to;
identify, at the UE, a downlink control channel within a prior specified subframe of n−
k that is received in time before a subframe n, wherein k∈
K and K includes a set of M elements {k0, k1, . . . kM-1} depending on the subframe n and an uplink/downlink (UL/DL) configuration;
determine when the downlink control channel is an enhanced physical downlink control channel (EPDCCH);
determine an enhanced physical uplink control channel (PUCCH) resource nPUCCH(1,{tilde over (p)}) for a hybrid automatic retransmission re-quest-acknowledge (HARQ-ACK) transmission using a lowest ECCE index nECCE of the PDCCH; and
select an enhanced PUCCH resource allocation for the HARQ-ACK transmission from the UE when the downlink control channel is the EPDCCH.
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Abstract
A user equipment (UE) is disclosed. The UE can identify a downlink control channel. The UE can determine when the downlink control channel is an enhanced physical downlink control channel (EPDCCH). The UE can select an enhanced physical uplink control channel (PUCCH) resource allocation for a hybrid automatic retransmission re-quest-acknowledge (HARQ-ACK) transmission when the downlink control channel is the EPDCCH.
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Citations
23 Claims
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1. An apparatus of a user equipment (UE), comprising:
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memory; and one or more processors configured to; identify, at the UE, a downlink control channel within a prior specified subframe of n−
k that is received in time before a subframe n, wherein k∈
K and K includes a set of M elements {k0, k1, . . . kM-1} depending on the subframe n and an uplink/downlink (UL/DL) configuration;determine when the downlink control channel is an enhanced physical downlink control channel (EPDCCH); determine an enhanced physical uplink control channel (PUCCH) resource nPUCCH(1,{tilde over (p)}) for a hybrid automatic retransmission re-quest-acknowledge (HARQ-ACK) transmission using a lowest ECCE index nECCE of the PDCCH; and select an enhanced PUCCH resource allocation for the HARQ-ACK transmission from the UE when the downlink control channel is the EPDCCH. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. At least one non-transitory computer readable storage medium having instructions embodied thereon, the instructions when executed perform the following:
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identifying, using at least one processor at a user equipment (UE), a downlink control channel, wherein the downlink control channel is identified within a prior specified subframe of n−
k that is received in time before a subframe n, wherein k∈
K and K includes a set of M elements {k0, k1, . . . kM-1} depending on the subframe n and an uplink/downlink (UL/DL) configuration;determining, using the at least one processor at the UE, when the downlink control channel is an enhanced physical downlink control channel (EPDCCH); determining, using the at least one processor at the UE, an enhanced physical uplink control channel (PUCCH) resource nPUCCH(1,{tilde over (p)}) for a hybrid automatic retransmission re-quest-acknowledge (HARQ-ACK) transmission using a lowest ECCE index nECCE of the PDCCH; and selecting, using the at least one processor at the UE, an enhanced PUCCH resource allocation for the HARQ-ACK transmission when the downlink control channel is the EPDCCH. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18)
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19. An apparatus of a user equipment (UE) operable to provide physical uplink control channel (PUCCH) resource allocation in time division duplex (TDD) for a hybrid automatic retransmission re-quest-acknowledge (HARQ-ACK) transmission in a subframe n, the apparatus comprising:
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memory; and one or more processors configured to; detect a downlink control channel within a prior specified subframe n−
k that is received in time before the subframe n, wherein n and k are integers, wherein k∈
K and K includes a set of M elements {k0, k1, . . . kM-1} depending on the subframe n and an uplink/downlink (UL/DL) configuration;identify when the downlink control channel detected within the prior specified subframe n−
k is an enhanced physical downlink control channel (EPDCCH);determine an enhanced PUCCH resource nPUCCH(1,{tilde over (p)}) for the HARQ-ACK transmission using a lowest ECCE index nECCE of the PDCCH; and determine an enhanced PUCCH resource allocation for the HARQ-ACK transmission using a lowest enhanced CCE (ECCE) index of the EPDCCH when the downlink control channel detected in the prior specified subframe n−
k is the EPDCCH. - View Dependent Claims (20, 21, 22, 23)
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Specification