Method and apparatus for reducing uplink overhead in mobile communications
AssigneeMediaTek Singapore Pte. Ltd.
InventorAbdelkader Medles
Life of this patent
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Abstract
Various solutions for reducing uplink overhead with respect to user equipment and network apparatus in mobile communications are described. An apparatus may determine whether to multiplex hybrid automatic repeat request-acknowledgement (HARQ-ACK) information in a physical uplink shared channel (PUSCH) transmission. The apparatus may determine whether only a physical downlink shared channel (PDSCH) is received. The apparatus may generate only the HARQ-ACK information corresponding to the PDSCH in an event that only the PDSCH is received. The apparatus may transmit the HARQ-ACK information in the PUSCH transmission.
Claims18
A method, comprising:
- determining, by a processor of an apparatus, whether to multiplex hybrid automatic repeat request-acknowledgement (HARQ-ACK) information in a physical uplink shared channel (PUSCH) transmission;
- determining, by the processor, that only a physical downlink shared channel (PDSCH) is received;
- receiving, by the processor, a downlink control information (DCI) transmission;
- generating, by the processor, only the HARQ-ACK information corresponding to the PDSCH in an event that only the PDSCH is received and despite determining to multiplex the HARQ-ACK information;
- and
- transmitting, by the processor, the HARQ-ACK information in the PUSCH transmission,
- wherein, in response to a downlink assignment index (DAI) field in the DCI being assigned or the PDSCH being received from a primary cell (PCell), the HARQ-ACK information comprises a single HARQ-ACK corresponding to the received PDSCH instead of a full HARQ-ACK codebook to result in reduced uplink overhead.
An apparatus, comprising:
- a transceiver capable of wirelessly communicating with a network node of a wireless network;
- and
- a processor communicatively coupled to the transceiver, the processor capable of:
- determining whether to multiplex hybrid automatic repeat request-acknowledgement (HARQ-ACK) information in a physical uplink shared channel (PUSCH) transmission;
- determining that only a physical downlink shared channel (PDSCH) is received;
- receiving, via the transceiver, a downlink control information (DCI) transmission;
- generating only the HARQ-ACK information corresponding to the PDSCH in an event that only the PDSCH is received and despite determining to multiplex the HARQ-ACK information;
- and
- transmitting, via the transceiver, the HARQ-ACK information in the PUSCH transmission to the network node,
- wherein, in response to a downlink assignment index (DAI) field in the DCI being assigned or the PDSCH being received from a primary cell (PCell), the HARQ-ACK information comprises a single HARQ-ACK corresponding to the received PDSCH instead of a full HARQ-ACK codebook to result in reduced uplink overhead.
Dependencies are inferred from the claim text.