Method and device in communication nodes for wireless communication

A second node for wireless communications, comprising:

• a second transmitter, transmitting a first information block, a second information block and a third information block;
• and
• a second receiver, when a first condition set is satisfied, receiving a first bit block and a second bit block in a first time-frequency resource block, dropping receiving the second bit block in a second time-frequency resource block, and dropping receiving the second bit block in a third time-frequency resource block;
• when the first condition set is not satisfied, dropping receiving the first bit block in the first time-frequency resource block, receiving the second bit block in the second time-frequency resource block, and receiving the second bit block in the third time-frequency resource block;
• the second receiver receives a first reference signal, or the second transmitter transmits a first reference signal;
• the second receiver receives a second reference signal, or, the second transmitter transmits a second reference signal;
• wherein the first information block is used to indicate the first time-frequency resource block, and the first time-frequency resource block is reserved for the first bit block;
• the second information block is used to indicate the second time-frequency resource block and the third time-frequency resource block, and the second time-frequency resource block and the third time-frequency resource block are respectively reserved for two repetitions of the second bit block;
• the first time-frequency resource block overlaps with the second time-frequency resource block in time domain, and the first time-frequency resource block overlaps with the third time-frequency resource block in time domain;
• whether the first condition set is satisfied is used to determine whether to drop receiving the first bit block in the first time-frequency resource block, the third information block is used to indicate a first index and a second index, the first index is used to indicate the first reference signal, and the second index is used to indicate the second reference signal;
• the first index is used to determine a spatial relation of the second time-frequency resource block, and the second index is used to determine a spatial relation of the third time-frequency resource block;
• the first condition set comprises:
• the first index is the same as the second index;
• the first index is a non-negative integer, and the second index is a non-negative integer;
• the first bit block comprises at least one bit, and the second bit block comprises at least one bit.

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

• receiving a first information block, a second information block and a third information block;
• when a first condition set is satisfied, transmitting a first bit block and a second bit block in a first time-frequency resource block, dropping transmitting the second bit block in a second time-frequency resource block, and dropping transmitting the second bit block in a third time-frequency resource block;
• and
• when the first condition set is not satisfied, drops transmitting the first bit block in the first time-frequency resource block, transmitting the second bit block in the second time-frequency resource block, and transmitting the second bit block in the third time-frequency resource block;
• transmitting a first reference signal, or receiving a first reference signal;
• transmitting a second reference signal, or receiving a second reference signal;
• wherein the first information block is used to indicate the first time-frequency resource block, and the first time-frequency resource block is reserved for the first bit block;
• the second information block is used to indicate the second time-frequency resource block and the third time-frequency resource block, and the second time-frequency resource block and the third time-frequency resource block are respectively reserved for two repetitions of the second bit block;
• the first time-frequency resource block overlaps with the second time-frequency resource block in time domain, and the first time-frequency resource block overlaps with the third time-frequency resource block in time domain;
• whether the first condition set is satisfied is used to determine whether to drop transmitting the first bit block in the first time-frequency resource block, the third information block is used to indicate a first index and a second index, the first index is used to indicate the first reference signal, and the second index is used to indicate the second reference signal;
• the first index is used to determine a spatial relation of the second time-frequency resource block, and the second index is used to determine a spatial relation of the third time-frequency resource block;
• the first condition set comprises:
• the first index is the same as the second index;
• the first index is a non-negative integer, and the second index is a non-negative integer;
• the first bit block comprises at least one bit, and the second bit block comprises at least one bit.

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

• transmitting a first information block, a second information block and a third information block;
• receiving a first reference signal, or transmitting a first reference signal;
• receiving a second reference signal, or transmitting a second reference signal;
• when a first condition set is satisfied, receiving a first bit block and a second bit block in a first time-frequency resource block, dropping receiving the second bit block in a second time-frequency resource block, and dropping receiving the second bit block in a third time-frequency resource block;
• and
• when the first condition set is not satisfied, dropping receiving the first bit block in the first time-frequency resource block, receiving the second bit block in the second time-frequency resource block, and receiving the second bit block in the third time-frequency resource block;
• wherein the first information block is used to indicate the first time-frequency resource block, and the first time-frequency resource block is reserved for the first bit block;
• the second information block is used to indicate the second time-frequency resource block and the third time-frequency resource block, and the second time-frequency resource block and the third time-frequency resource block are respectively reserved for two repetitions of the second bit block;
• the first time-frequency resource block overlaps with the second time-frequency resource block in time domain, and the first time-frequency resource block overlaps with the third time-frequency resource block in time domain;
• whether the first condition set is satisfied is used to determine whether to drop receiving the first bit block in the first time-frequency resource block, the third information block is used to indicate a first index and a second index, the first index is used to indicate the first reference signal, and the second index is used to indicate the second reference signal:
• the first index is used to determine a spatial relation of the second time-frequency resource block, and the second index is used to determine a spatial relation of the third time-frequency resource block;
• the first condition set comprises:
• the first index is the same as the second index;
• the first index is a non-negative integer, and the second index is a non-negative integer;
• the first bit block comprises at least one bit, and the second bit block comprises at least one bit.