Device and method for data transmission in D2D communication

A second user equipment (UE) comprising:

• one or more processors;
• and
• a non-transitory computer-readable storage medium storing a program to be executed by the one or more processors, the program including instructions for:
• receiving scheduling signaling from a first UE, the scheduling signaling comprising of frequency domain resource information and transmission pattern information, the transmission pattern information comprising a time duration for transmitting a data in a cycle and a repetition mode of the data, wherein the repetition mode is one of:
• an immediate repetition in which transmission of a same data is permitted at a next available transmission time;
• or
• a discontinuous repetition and a minimum repetition interval in which a transmission of a same data is permitted after waiting a period of time, the period of time being longer than a time to the next available transmission time;
• receiving the data in a first transmission from the first UE, according to information in the scheduling signaling received from the first UE;
• and
• receiving the data in a retransmission from the first UE, according to the information in the scheduling signaling received from the first UE and used for receiving the data in the first transmission from the first UE.

A method for data transmission, comprising:

• transmitting, by a first user equipment (UE), scheduling signaling to a second UE, wherein the scheduling signaling comprises of frequency domain resource information and transmission pattern information, the transmission pattern information comprising a time duration for transmitting a data in a cycle and a repetition mode of the data, wherein the repetition mode is one of:
• an immediate repetition in which transmission of a same data is permitted at a next available transmission time;
• or
• a discontinuous repetition and a minimum repetition interval in which a transmission of a same data is permitted after waiting a period of time, the period of time being longer than a time to the next available transmission time;
• performing, by the first UE, a first transmission of data to the second UE according to the scheduling signaling;
• and
• performing, by the first UE, a retransmission of the data to the second UE according to the scheduling signaling used for the first transmission of the data to the second UE.

A method for data transmission, the method comprising:

• receiving, by a first user equipment (UE), scheduling signaling from a second UE, wherein the scheduling signaling comprises frequency domain resource information and transmission pattern information, the transmission pattern information comprising a time duration for transmitting a data in a cycle and a repetition mode of the data, wherein the repetition mode is one of:
• an immediate repetition in which transmission of a same data is permitted at a next available transmission time;
• or
• a discontinuous repetition and a minimum repetition interval in which a transmission of a same data is permitted after waiting a period of time, the period of time being longer than a time to the next available transmission time;
• receiving, by the first UE, a first transmission, according to information in the scheduling signaling, of the data from the second UE;
• and
• receiving, by the first UE, a retransmission of the data from the second UE, according to the information in the scheduling signaling used for receiving the first transmission of the data from the second UE.