Uplink transmission instruction method, terminal, base station and computer storage medium

An uplink transmission instruction method, comprising:

• receiving a configuration message from a base station, wherein the configuration message is for configuring at least two Sounding Reference Signal, SRS, resource sets for a terminal, and the SRS resource set is for acquiring Channel State Information, CSI, of an uplink signal in a first uplink transmission mode;
• sending an SRS based on the configuration message to the base station;
• receiving an uplink transmission parameter determined by the base station according to the SRS;
• and
• sending a first uplink signal to the base station according to the uplink transmission parameter;
• wherein one or a combination of following schemes is performed:
• scheme I:
• the uplink transmission parameter comprises TPMI and TRI, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the method further comprises:
• determining the number of coded bits of the TPMI and TRI according to the number of antenna ports of a SRS resource for determining the uplink transmission parameter;
• scheme II:
• the uplink transmission parameter comprises TPMI and TRI, all SRS resources in the at least two SRS resource sets comprise the same number of antenna ports, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the method further comprises:
• determining the number of coded bits of the TPMI and TRI according to the number of antenna ports;
• scheme III:
• the uplink transmission parameter comprises TPMI and TRI, there are SRS resources comprising different numbers of antenna ports in the at least two SRS resource sets, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the method further comprises:
• determining the number of coded bits of the TPMI and TRI according to a maximum value of the numbers of antenna ports comprised in all SRS resources in the at least two SRS resource sets;
• or
• the uplink transmission parameter comprises TPMI and TRI, there are SRS resources comprising different numbers of antenna ports in an SRS resource set corresponding to the SRS transmitted by the terminal, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the method further comprises:
• determining the number of coded bits of the TPMI and TRI according to a maximum value of the numbers of antenna ports comprised in all SRS resources in the SRS resource set corresponding to the received SRS transmitted by the terminal;
• scheme IV:
• the uplink transmission parameter comprises SRI, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the method further comprises:
• determining the SRI according to the number of SRS resources comprised in a SRS resource set for determining the uplink transmission parameter;
• scheme V:
• the uplink transmission parameter comprises SRI, all SRS resource sets in the at least two SRS resource sets comprise the same number of SRS resources, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the method further comprises:
• determining the number of coded bits of the SRI according to the number of SRS resources;
• scheme VI:
• the uplink transmission parameter comprises SRI, there are SRS resource sets comprising different numbers of SRS resources in the at least two SRS resource sets, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the method further comprises:
• determining the number of coded bits of the SRI according to a maximum value of the numbers of SRS resources comprised in all SRS resource sets among the at least two SRS resource sets.

A terminal, comprising:

• a memory configured to store instructions;
• a processor configured to read the instructions in the memory to:
• receive a configuration message from a base station via a transceiver, wherein the configuration message is for configuring at least two Sounding Reference Signal, SRS, resource sets for a terminal, and the SRS resource set is for acquiring Channel State Information, CSI, of an uplink signal in a first uplink transmission mode;
• send an SRS based on the configuration message to the base station;
• receive an uplink transmission parameter determined by the base station according to the SRS;
• send a first uplink signal to the base station according to the uplink transmission parameter;
• and
• the transceiver configured to receive and send data under control of the processor;
• wherein the processor is further configured to perform one or a combination of following schemes:
• scheme I:
• the uplink transmission parameter comprises TPMI and TRI, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the processor is further configured to perform:
• determining the number of coded bits of the TPMI and TRI according to the number of antenna ports of a SRS resource for determining the uplink transmission parameter;
• scheme II:
• the uplink transmission parameter comprises TPMI and TRI, all SRS resources in the at least two SRS resource sets comprise the same number of antenna ports, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the processor is further configured to perform:
• determining the number of coded bits of the TPMI and TRI according to the number of antenna ports;
• scheme III:
• the uplink transmission parameter comprises TPMI and TRI, there are SRS resources comprising different numbers of antenna ports in the at least two SRS resource sets, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the processor is further configured to perform:
• determining the number of coded bits of the TPMI and TRI according to a maximum value of the numbers of antenna ports comprised in all SRS resources in the at least two SRS resource sets;
• or
• the uplink transmission parameter comprises TPMI and TRI, there are SRS resources comprising different numbers of antenna ports in an SRS resource set corresponding to the SRS transmitted by the terminal, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the processor is further configured to perform:
• determining the number of coded bits of the TPMI and TRI according to a maximum value of the numbers of antenna ports comprised in all SRS resources in the SRS resource set corresponding to the received SRS transmitted by the terminal;
• scheme IV:
• the uplink transmission parameter comprises SRI, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the processor is further configured to perform:
• determining the SRI according to the number of SRS resources comprised in a SRS resource set for determining the uplink transmission parameter;
• scheme V:
• the uplink transmission parameter comprises SRI, all SRS resource sets in the at least two SRS resource sets comprise the same number of SRS resources, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the processor is further configured to perform:
• determining the number of coded bits of the SRI according to the number of SRS resources;
• scheme VI:
• the uplink transmission parameter comprises SM, there are SRS resource sets comprising different numbers of SRS resources in the at least two SRS resource sets, and after receiving the uplink transmission parameter determined by the base station according to the SRS, the processor is further configured to perform:
• determining the number of coded bits of the SRI according to a maximum value of the numbers of SRS resources comprised in all SRS resource sets among the at least two SRS resource sets.