Method and device used in node for wireless communication

A second node used for wireless communications, comprising:

• a second transmitter, which transmits first information, the first information indicating a first symbol set;
• and
• a second receiver, which monitors a first signaling in a first symbol group;
• the second receiver, which receives a first radio signal in a second symbol group when the first signaling is detected;
• wherein the first symbol group belongs to the first symbol set;
• the first signaling indicates the second symbol group, the second symbol group comprising a positive integer number of multicarrier symbols;
• at least one multicarrier symbol of the positive integer number of multicarrier symbols comprised by the second symbol group belongs to the first symbol set, and at least one multicarrier symbol of the positive integer number of multicarrier symbols comprised by the second symbol group does not belong to the first symbol set;
• a first bit sequence is used for generating the first radio signal, and the first bit sequence comprises a first bit sub-sequence and a second bit sub-sequence, and an order of the first bit sub-sequence in the first bit sequence is prior to that of the second bit sub-sequence in the first bit sequence;
• the first bit sub-sequence is mapped onto multicarrier symbol(s) in the second symbol group belonging to the first symbol set, while the second bit sub-sequence is mapped onto multicarrier symbol(s) in the second symbol group not belonging to the first symbol set.

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

• receiving first information, the first information indicating a first symbol set;
• transmitting a first signaling in a first symbol group;
• and
• transmitting a first radio signal in a second symbol group;
• wherein the first symbol group belongs to the first symbol set;
• the first signaling indicates the second symbol group, the second symbol group comprising a positive integer number of multicarrier symbols;
• at least one multicarrier symbol of the positive integer number of multicarrier symbols comprised by the second symbol group belongs to the first symbol set, and at least one multicarrier symbol of the positive integer number of multicarrier symbols comprised by the second symbol group does not belong to the first symbol set;
• a first bit sequence is used for generating the first radio signal, and the first bit sequence comprises a first bit sub-sequence and a second bit sub-sequence, and an order of the first bit sub-sequence in the first bit sequence is prior to that of the second bit sub-sequence in the first bit sequence;
• the first bit sub-sequence is mapped onto multicarrier symbol(s) in the second symbol group belonging to the first symbol set, while the second bit sub-sequence is mapped onto multicarrier symbol(s) in the second symbol group not belonging to the first symbol set.

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

• transmitting first information, the first information indicating a first symbol set;
• monitoring a first signaling in a first symbol group;
• and
• receiving a first radio signal in a second symbol group when the first signaling is detected;
• wherein the first symbol group belongs to the first symbol set;
• the first signaling indicates the second symbol group, the second symbol group comprising a positive integer number of multicarrier symbols;
• at least one multicarrier symbol of the positive integer number of multicarrier symbols comprised by the second symbol group belongs to the first symbol set, and at least one multicarrier symbol of the positive integer number of multicarrier symbols comprised by the second symbol group does not belong to the first symbol set;
• a first bit sequence is used for generating the first radio signal, and the first bit sequence comprises a first bit sub-sequence and a second bit sub-sequence, and an order of the first bit sub-sequence in the first bit sequence is prior to that of the second bit sub-sequence in the first bit sequence;
• the first bit sub-sequence is mapped onto multicarrier symbol(s) in the second symbol group belonging to the first symbol set, while the second bit sub-sequence is mapped onto multicarrier symbol(s) in the second symbol group not belonging to the first symbol set.