Method and device in node used for wireless communication

A second communication node for wireless communication, comprising:

• a second receiver, performing signaling monitoring in a first candidate resource pool;
• receiving a first signaling;
• and receiving a first radio signal in a first resource set;
• wherein X1 target parameter(s) is(are) used by a communication node transmitting the first signaling to determine Y1 candidate resource set(s) from the first candidate resource pool, X1 being a non-negative integer and Y1 being a non-negative integer;
• the first resource set is a candidate resource set in the first candidate resource pool other than the Y1 candidate resource set(s);
• the first signaling is used to determine time-frequency resources occupied by the first radio signal;
• whether the first radio signal carries first control information is used by the communication node transmitting the first signaling to determine the X1 target parameter(s);
• a priority of the first radio signal corresponds to a target priority index, and the target priority index is used to determine the X1 target parameter(s);
• when the first radio signal only carries the first control information, the target priority index is equal to a first priority index;
• when the first radio signal only carries information other than the first control information, the target priority index is equal to a second priority index;
• the second priority index is one of X priority indexes, and the first priority index is a minimum value of the X priority indexes, X being a positive integer greater than 1;
• the information other than the first control information comprises data and not control information;
• the first candidate resource pool comprises Y candidate resource sets;
• when the Y1 is greater than 0, any of the Y1 candidate resource set(s) is a candidate resource set of the Y candidate resource sets;
• the first resource set is a candidate resource set of Y2 candidate resource set(s), and any of the Y2 candidate resource sets is a candidate resource set among the Y candidate resource sets other than the Y1 candidate resource set(s);
• Y2 is a positive integer, and Y is a positive integer not less than a sum of the Y1 and the Y2;
• a ratio of the Y2 to the Y is not less than a first threshold.

A method used in a first communication node for wireless communication, comprising:

• performing signaling monitoring in a first time window, wherein X1 signaling(s) being detected in the signaling monitoring process, and X1 being a non-negative integer;
• determining a first resource set from a first candidate resource pool;
• transmitting a first signaling;
• and
• transmitting a first radio signal in the first resource set;
• wherein the X1 signaling(s) and X1 target parameter(s) are used to determine Y1 candidate resource set(s) from the first candidate resource pool, Y1 being a non-negative integer;
• the first resource set is a candidate resource set in the first candidate resource pool other than the Y1 candidate resource set(s);
• the first signaling is used to determine time-frequency resources occupied by the first radio signal;
• an end time of the first time window is not later than a start time for transmission of the first signaling;
• whether the first radio signal carries first control information is used to determine the X1 target parameter(s);
• a priority of the first radio signal corresponds to a target priority index, and the target priority index is used to determine the X1 target parameter(s);
• in response to the first radio signal only carrying the first control information, the target priority index is equal to a first priority index;
• in response to the first radio signal only carrying information other than the first control information, the target priority index is equal to a second priority index;
• the second priority index is one of X priority indexes, and the first priority index is a minimum value of the X priority indexes, X being a positive integer greater than 1;
• the information other than the first control information comprises data and not control information;
• the first candidate resource pool comprises Y candidate resource sets;
• in response to the Y1 being greater than 0, any of the Y1 candidate resource set(s) is a candidate resource set of the Y candidate resource sets;
• the first resource set is a candidate resource set of Y2 candidate resource set(s), and any of the Y2 candidate resource sets is a candidate resource set among the Y candidate resource sets other than the Y1 candidate resource set(s);
• Y2 is a positive integer, and Y is a positive integer not less than a sum of the Y1 and the Y2;
• a ratio of the Y2 to the Y is not less than a first threshold.

A method used in a second communication node for wireless communication, comprising:

• performing signaling monitoring in a first candidate resource pool;
• receiving a first signaling;
• and
• receiving a first radio signal in a first resource set;
• wherein X1 target parameter(s) is(are) used by a communication node transmitting the first signaling to determine Y1 candidate resource set(s) from the first candidate resource pool, X1 being a non-negative integer and Y1 being a non-negative integer;
• the first resource set is a candidate resource set in the first candidate resource pool other than the Y1 candidate resource set(s);
• the first signaling is used to determine time-frequency resources occupied by the first radio signal;
• whether the first radio signal carries first control information is used by the communication node transmitting the first signaling to determine the X1 target parameter(s);
• a priority of the first radio signal corresponds to a target priority index, and the target priority index is used to determine the X1 target parameter(s);
• in response to the first radio signal only carrying the first control information, the target priority index is equal to a first priority index;
• in response to the first radio signal only carrying information other than the first control information, the target priority index is equal to a second priority index;
• the second priority index is one of X priority indexes, and the first priority index is a minimum value of the X priority indexes, X being a positive integer greater than 1;
• the information other than the first control information comprises data and not control information;
• the first candidate resource pool comprises Y candidate resource sets;
• in response to the Y1 being greater than 0, any of the Y1 candidate resource set(s) is a candidate resource set of the Y candidate resource sets;
• the first resource set is a candidate resource set of Y2 candidate resource set(s), and any of the Y2 candidate resource sets is a candidate resource set among the Y candidate resource sets other than the Y1 candidate resource set(s);
• Y2 is a positive integer, and Y is a positive integer not less than a sum of the Y1 and the Y2;
• a ratio of the Y2 to the Y is not less than a first threshold.