Method and apparatus for transmitting physical uplink shared

A method for receiving a physical uplink shared channel (PUSCH), comprising:

• sending a scheduling grant to user equipment (UE), wherein the scheduling grant is used by the UE to determine a time domain location for transmitting the PUSCH, the scheduling grant comprises at least one of the following information:
• indication information indicating whether to transmit a demodulation reference signal (DMRS);
• first time domain location related information for transmitting the DMRS;
• second time domain location related information for transmitting data;
• information on frequency domain density of the DMRS;
• and frequency domain offset information of the DMRS;
• and
• receiving a PUSCH transmitted by the UE on the determined time domain location for transmitting the PUSCH;
• wherein
• when the second time domain location related information indicates an offset of a time domain location for transmitting the data from a time domain location for transmitting the DMRS, receiving the PUSCH transmitted by the UE on the determined time domain location for transmitting the PUSCH comprises:
• receiving the DMRS transmitted by the UE on the time domain location for transmitting the DMRS, wherein the time domain location for transmitting the DMRS is determined by the UE according to a downlink Transmission Time Interval (TTI) for receiving the scheduling grant and a designated timing interval;
• and receiving the data transmitted by the UE on the time domain location for transmitting the data, wherein the time domain location for transmitting the data is determined by the UE according to the time domain location for transmitting the DMRS and the second time domain location related information;
• or
• receiving the PUSCH transmitted by the UE on the determined time domain location for transmitting the PUSCH comprises:
• receiving the DMRS transmitted by the UE on the time domain location for transmitting the DMRS, wherein the time domain location for transmitting the DMRS is determined by the UE according to a downlink TTI for receiving the scheduling grant and a designated timing interval;
• and receiving the data transmitted by the UE on the time domain location for transmitting the data, wherein the time domain location for transmitting the data is determined by the UE according to the designated timing interval and the second time domain location related information;
• wherein the second time domain location related information indicates one of:
• an offset of the time domain location for transmitting the data from a first designated uplink TTI, where the first designated uplink TTI is a first uplink TTI after the downlink TTI and having a time interval from the downlink TTI larger than or equal to the designated timing interval;
• the second time domain location related information indicates that the time domain location for transmitting the data is an x-th uplink TTI after a first designated time domain location, where the first designated time domain location is a time domain location after the downlink TTI and offsetting from the downlink TTI by the designated timing interval, and x is an integer;
• or the time domain location for transmitting the data is an x1-th symbol after a first designated time domain location, where the first designated time domain location is a time domain location after the downlink TTI and offsetting from the downlink TTI by the designated timing interval, and x1 is an integer.

An apparatus for transmitting a physical uplink shared channel (PUSCH), comprising:

• a memory, a processor, and a computer program stored on the memory and operative on the processor, the processor executing the computer program to:
• determine a time domain location for transmitting the PUSCH according to a downlink transmission time interval (TTI) for receiving a scheduling grant;
• and
• transmit the PUSCH in the determined time domain location for transmitting the PUSCH;
• wherein the scheduling grant comprises at least one of the following information:
• indication information for indicating whether to transmit a demodulation reference signal (DMRS);
• first time domain location related information for transmitting the DMRS;
• second time domain location related information for transmitting data;
• information on frequency domain density of the DMRS;
• and frequency domain offset information of the DMRS;
• wherein the processor executes the computer program to:
• when the second time domain location related information indicates an offset of a time domain location for transmitting the data from a time domain location for transmitting the DMRS, determine the time domain location for transmitting the DMRS according to the downlink TTI and a designated timing interval, and determine the time domain for transmitting the data according to the time domain for transmitting the DMRS and the second time domain location related information;
• or
• determine a time domain location for transmitting the DMRS according to the downlink TTI and a designated timing interval, and determine a time domain location for transmitting the data according to the designated timing interval and the second time domain location related information;
• wherein the second time domain location related information indicates one of:
• an offset of the time domain location for transmitting the data from a first designated uplink TTI, where the first designated uplink TTI is a first uplink TTI after the downlink TTI and having a time interval from the downlink TTI larger than or equal to the designated timing interval;
• the time domain location for transmitting the data is an x-th uplink TTI after a first designated time domain location, where the first designated time domain location is a time domain location after the downlink TTI and offsetting from the downlink TTI by the designated timing interval, and x is an integer;
• or the time domain location for transmitting the data is an x1-th symbol after a first designated time domain location, where the first designated time domain location is a time domain location after the downlink TTI and offsetting from the downlink TTI by the designated timing interval, and x1 is an integer.