User equipments, base stations and methods
AssigneeSharp Laboratories of America, Inc.
InventorsToshizo Nogami, Zhanping Yin
Life of this patent
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Abstract
A user equipment (UE) is described. A higher-layer processor is configured to configure a short processing time. A physical downlink control channel (PDCCH) receiver is configured to receive, in a subframe n, a PDCCH. A physical downlink shared channel (PDSCH) receiver is configured to receive, in the subframe n, a PDSCH corresponding to the PDCCH. An uplink receiver is configured to feedback, in a subframe n+k, a hybrid automatic repeat request-acknowledgement (HARQ-ACK) corresponding to the PDSCH. In a case that the PDCCH is a PDCCH in common search space, the k is equal to k1. In a case that the PDCCH is a PDCCH in UE-specific search space, the k is equal to k2. The k2 is smaller than the k1.
Claims4
A user equipment (UE) comprising:
- a higher-layer processor configured to configure a short processing time;
- a physical downlink control channel (PDCCH) receiver configured to receive, in a subframe n, a PDCCH;
- a physical downlink shared channel (PDSCH) receiver configured to receive, in the subframe n, a PDSCH corresponding to the PDCCH;
- and
- an uplink receiver configured to feedback, in a subframe n+k, a hybrid automatic repeat request-acknowledgement (HARQ-ACK) corresponding to the PDSCH, wherein
- in a case that the PDCCH is a PDCCH in common search space, the k is equal to k1,
- in a case that the PDCCH is a PDCCH in UE-specific search space, the k is equal to k2, and
- the k2 is smaller than the k1.
An evolved node B (eNB) comprising:
- a higher-layer processor configured to configure, for a user equipment (UE), a short processing time;
- a physical downlink control channel (PDCCH) transmitter configured to transmit, in a subframe n, a PDCCH;
- a physical downlink shared channel (PDSCH) transmitter configured to transmit, in the subframe n, a PDSCH corresponding to the PDCCH;
- and
- an uplink receiver configured to obtain, in a subframe n+k, a hybrid automatic repeat request-acknowledgement (HARQ-ACK) corresponding to the PDSCH, wherein
- in a case that the PDCCH is a PDCCH in common search space, the k is equal to k1,
- in a case that the PDCCH is a PDCCH in UE-specific search space, the k is equal to k2, and
- the k2 is smaller than the k1.
A method for a user equipment (UE), the method comprising:
- configuring a short processing time;
- receiving, in a subframe n, a physical downlink control channel (PDCCH);
- receiving, in the subframe n, a physical downlink shared channel (PDSCH) corresponding to the PDCCH;
- and
- feeding back, in a subframe n+k, a hybrid automatic repeat request-acknowledgement (HARQ-ACK) corresponding to the PDSCH, wherein
- in a case that the PDCCH is a PDCCH in common search space, the k is equal to k1,
- in a case that the PDCCH is a PDCCH in UE-specific search space, the k is equal to k2, and
- the k2 is smaller than the k1.
A method for an evolved node B (eNB), the method comprising:
- configuring, for a user equipment (UE), a short processing time;
- transmitting, in a subframe n, a physical downlink control channel (PDCCH);
- transmitting, in the subframe n, a physical downlink shared channel (PDSCH) corresponding to the PDCCH;
- and
- obtaining, in a subframe n+k, a hybrid automatic repeat request-acknowledgement (HARQ-ACK) corresponding to the PDSCH, wherein
- in a case that the PDCCH is a PDCCH in common search space, the k is equal to k1,
- in a case that the PDCCH is a PDCCH in UE-specific search space, the k is equal to k2, and
- the k2 is smaller than the k1.
Dependencies are inferred from the claim text.