TECHNICAL FIELD

The present disclosure relates to, but is not limited to, the field of communications.

BACKGROUND

In new radio (NR) Release-15, due to limited time, joint transmission of multiple transmitting and receiving points (TRPs) has not been discussed sufficiently. The current NR version does not support a solution of performing data transmission on a same user by multiple TRPs. For an ultra-high reliability ultra-low latency communication (uRLLC) service, in order to ensure the transmission reliability, whether the multiple TRPs can be applied for joint transmission has not been discussed.

SUMMARY

An embodiment of the present disclosure provides a data sending method, and the method includes steps described below. Data scheduled by one downlink control information (DCI) is divided into N data parts, where N≥1, and a value of N and whether the N data parts have a correlation in a case of N>1 are determined by at least one of following scheduling information: a transmission configuration indicator (TCI) field, a demodulation reference signal (DMRS) port indicator, a modulation and coding scheme (MCS), a redundancy version (RV) or a new data indicator (NDI); the N data parts are transmitted to a receiving side.

An embodiment of the present disclosure further provides a data receiving method, and the method includes a step described below. N data parts sent by a TRP are received, where the N data parts are scheduled by one downlink control information (DCI), N≥1, and a value of N and whether the N data parts have a correlation in a case of N>1 are determined by at least one of following scheduling information: a TCI field, a DMRS port indicator, a MCS, a RV or a NDI.

An embodiment of the present disclosure further provides a data sending apparatus, and the data sending apparatus includes a data dividing module and a data sending module. The data dividing module is configured to divide data scheduled by DCI into N data parts, where N≥1, and a value of N and whether the N data parts have correlation in a case of N>1 are determined by at least one of the following scheduling information: a TCI field, a DMRS port indicator, a MCS, a RV or a NDI; the data sending module is configured to transmit the N data parts to a receiving side.

An embodiment of the present disclosure further provides a data receiving apparatus, and the data receiving apparatus includes a data receiving module. The data receiving module is configured to receive N data parts sent by a TRP, where the N data parts are data scheduled by DCI, N≥1, and a value of N and whether the N data parts have a correlation in a case of N>1 are determined by at least one of the following scheduling information: a TCI field, a DMRS port indicator, a MCS, a RV or a NDI.

An embodiment of the present disclosure further provides a communication device, which includes a processor, a memory, and a communication bus. The communication bus is configured to implement connection communication between the processor and the memory. The processor is configured to execute a data sending program stored in the memory to implement the steps of the data sending method.

An embodiment of the present disclosure further provides a communication device, which includes a processor, a memory, and a communication bus. The communication bus is configured to implement connection communication between the processor and the memory. The processor is configured to execute a data receiving program stored in the memory to implement the steps of the data receiving method.

An embodiment of the present disclosure further provides a communication system, which includes a terminal and at least one TRP. The terminal is the above-mentioned communication device in which the processor can execute the data receiving program to implement steps of the data receiving method described above; the TRP is the above-mentioned communication device in which the processor can execute the data sending program to implement the steps of the data sending method described above.

An embodiment of the present disclosure further provides a storage medium, which stores at least one of a data sending program or a data receiving program. The data sending program can be executed by at least one processor to implement the steps of the data sending method described above. The data receiving program can be executed by at least one processor to implement the steps of the data receiving method described above.

