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US 11,962,418 B2Granted
Method for controlling data retransmission and user equipment
AssigneeGuangdong Oppo Mobile Telecommunications Corp., Ltd.
InventorJing Xu
Life of this patent
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Abstract
A method for controlling data retransmission is provided. Data is transmitted to network device and a timer is started. The data is retransmitted after the timer expires if a HARQ-ACK feedback corresponding to the data is not received before the timer expires. Or the data is retransmitted if a HARQ-NACK feedback corresponding to the data is received from the network device before the timer expires.
Claims10
A method for controlling data retransmission, comprising:
- transmitting data to a network device and starting a timer;
- and
- retransmitting the data after the timer expires, if a HARQ-ACK feedback corresponding to the data is not received before the timer expires;
- retransmitting the data if a HARQ-NACK feedback corresponding to the data is received from the network device before the timer expires;
- wherein retransmitting the data comprising:
- obtaining a time resource for retransmission according to the timer;
- obtaining a frequency resource for retransmission according to previous transmission;
- and
- retransmitting the data with the time resource and the frequency resource;
- wherein a location of the time resource is determined by:
- T+N, wherein T is the time when the timer expires, and N is a predetermined parameter;
- wherein a location of the frequency resource is determined by:
- RB +offset, wherein RB is a location of a frequency resource for transmitting the data before the retransmission, and offset is a predetermined parameter.
10 more elements
A user equipment, comprising:
- a processor, a transmitter, and a receiver, wherein
- the processor is configured to control starting of a timer;
- the receiver is configured to receive a HARQ-ACK feedback or a HARQ-NACK feedback from a network device;
- and
- the transmitter is configured to:
- transmit data to the network device;
- and
- retransmit the data if a HARQ-ACK feedback corresponding to the data is not received by the receiver before the timer expires;
- retransmit the data if a HARQ-NACK feedback corresponding to the data is received by the receiver from the network device before the timer expires;
- wherein the transmitter is configured to:
- obtain a time resource for retransmission according to the timer;
- obtain a frequency resource for retransmission according to previous transmission;
- and
- retransmit the data with the time resource and the frequency resource;
- wherein a location of the time resource is determined by:
- T+N, wherein T is the time when the timer expires, and N is a predetermined parameter;
- wherein a location of the frequency resource is determined by:
- RB+offset, wherein RB is a location of a frequency resource for transmitting the data before the retransmission, and offset is a predetermined parameter.
15 more elements
Dependencies are inferred from the claim text.