Data transmission method, device and system
AssigneeGuangdong Oppo Mobile Telecommunications Corp., Ltd.
InventorsJia Shen, Zhenshan Zhao
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Abstract
Embodiments of the present disclosure provide a data transmission method, device and system. The method comprises: a network device transmits a first DCI and a second DCI to a first terminal and a second terminal, respectively. The first terminal transmits sidelink data on a time-frequency resource determined by the first sidelink scheduling information in the first DCI. And the second terminal receives the sidelink data on the time-frequency resource determined by the second sidelink scheduling information in the second DCI.
Claims16
A terminal, comprising:
- a processor, a receiver and a transmitter,
- wherein the processor is configured to receive, through the receiver, a first DCI from a network device, and the first DCI is configured to transport scheduling information of a sidelink between the terminal and a second terminal;
- the processor is further configured to transmit, through the transmitter, sidelink data to the second terminal on a resource scheduled by the scheduling information;
- and
- the resource is obtained by the second terminal by receiving a second DCI from the network device and used by the second terminal for receiving the sidelink data,
- wherein the first DCI and the second DCI comprises:
- frequency domain resource assignment and/or time domain resource assignment and the resource is determined according to the frequency domain resource assignment and/or the time domain resource assignment;
- and
- wherein the first DCI and the second DCI further comprises:
- redundancy version and HARQ process number;
- for the first DCI, the redundancy version is configured to indicate the redundancy version of the sidelink data for the terminal transmission and the HARQ process number is configured to indicate the HARQ process number of the sidelink data for the terminal transmission;
- for the second DCI, the redundancy version is configured to indicate the redundancy version of the sidelink data for the second terminal reception and the HARQ process number is configured to indicate the HARQ process number of the sidelink data for the second terminal reception.
A terminal, comprising:
- a receiver unit,
- wherein the receiver unit is configured to receive a second DCI from a network device, and the second DCI is configured to transport scheduling information of a sidelink between a first terminal and the terminal;
- the receiver unit is further configured to receive sidelink data from the first terminal on a resource scheduled by the scheduling information;
- and
- the resource is obtained by the first terminal by receiving a first DCI from the network device and used by the first terminal for transmitting the sidelink data,
- wherein the first DCI and the second DCI comprises:
- frequency domain resource assignment and/or time domain resource assignment and the resource is determined according to the frequency domain resource assignment and/or the time domain resource assignment;
- and
- wherein the first DCI and the second DCI further comprises:
- redundancy version and HARQ process number;
- for the first DCI, the redundancy version is configured to indicate the redundancy version of the sidelink data for the first terminal transmission and the HARQ process number is configured to indicate the HARQ process number of the sidelink data for the first terminal transmission;
- for the second DCI, the redundancy version is configured to indicate the redundancy version of the sidelink data for the terminal reception and the HARQ process number is configured to indicate the HARQ process number of the sidelink data for the terminal reception.
Dependencies are inferred from the claim text.