Method and device in nodes used for wireless communication

A second node for wireless communications, comprising:

• a second transmitter, transmitting K information blocks, K being a positive integer greater than 1, each of the K information blocks comprises a first-type index and at least one second-type index, and each of the K information blocks is used for indicating a resource set;
• a second transceiver, transmitting a first signaling and a second signaling respectively in a first resource set and a second resource set;
• the first resource set is the resource set indicated by a first information block, the first information block being one of the K information blocks, and the second resource set is the resource set indicated by a second information block, the second information block being one of the K information blocks other than the first information block;
• and
• a second receiver, receiving first UCI in a physical layer channel on a first cell, the first cell being capable of bearing a HARQ-ACK associated with the first signaling;
• wherein the first-type index's name comprises CORESETPoolIndex;
• any said second-type index comprised in the K information blocks indicates a reference signal resource;
• a Demodulation Reference Signal (DMRS) of a channel occupied by the first signaling and a first reference signal resource are quasi co-located (QCL), and one said second-type index comprised in the first information block indicates the first reference signal resource;
• a DMRS of a channel occupied by the second signaling and a second reference signal resource are QCL, and one said second-type index comprised in the second information block indicates the second reference signal resource;
• the first reference signal resource is associated with a target cell, while the second reference signal resource is associated with a first candidate cell;
• the first UCI comprises a HARQ-ACK associated with a second signaling, the first-type index indicated by the first information block and the target cell are jointly used to determine whether the first UCI comprises the HARQ-ACK associated with the first signaling;
• the first signaling comprises a first field, and the second signaling comprises a second field;
• the second field in the second signaling is used to determine a number of HARQ-ACK bits that are comprised in the first UCI;
• whether the first field in the first signaling is used to determine the number of the HARQ-ACK bits that are comprised in the first UCI depends on the first-type index indicated by the first information block and the target cell;
• the K information blocks are respectively used to indicate K Control Resource Sets (CORESETs), the first resource set comprises a CORESET, the second resource set comprises a CORESET;
• the first signaling is Downlink Control Information (DCI), and the first field in the first signaling is a Downlink Assignment Index (DAI) in the DCI;
• the second signaling is DCI, and the second field in the second signaling is a DAI in the DCI.

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

• receiving K information blocks, K being a positive integer greater than 1, each of the K information blocks comprises a first-type index and at least one second-type index, and each of the K information blocks is used for indicating a resource set;
• receiving a first signaling and a second signaling respectively in a first resource set and a second resource set;
• the first resource set is the resource set indicated by a first information block, the first information block being one of the K information blocks, and the second resource set is the resource set indicated by a second information block, the second information block being one of the K information blocks other than the first information block;
• and
• transmitting first UCI in a physical layer channel on a first cell, the first cell being capable of bearing a HARQ-ACK associated with the first signaling;
• wherein the first-type index's name comprises CORESETPoolIndex;
• any said second-type index comprised in the K information blocks indicates a reference signal resource;
• a Demodulation Reference Signal (DMRS) of a channel occupied by the first signaling and a first reference signal resource are quasi co-located (QCL), and one said second-type index comprised in the first information block indicates the first reference signal resource;
• a DMRS of a channel occupied by the second signaling and a second reference signal resource are QCL, and one said second-type index comprised in the second information block indicates the second reference signal resource;
• the first reference signal resource is associated with a target cell, while the second reference signal resource is associated with a first candidate cell;
• the first UCI comprises a HARQ-ACK associated with a second signaling, the first-type index indicated by the first information block and the target cell are jointly used to determine whether the first UCI comprises the HARQ-ACK associated with the first signaling;
• the first signaling comprises a first field, and the second signaling comprises a second field;
• the second field in the second signaling is used to determine a number of HARQ-ACK bits that are comprised in the first UCI;
• whether the first field in the first signaling is used to determine the number of the HARQ-ACK bits that are comprised in the first UCI depends on the first-type index indicated by the first information block and the target cell;
• the K information blocks are respectively used to indicate K Control Resource Sets (CORESETs), the first resource set comprises a CORESET, the second resource set comprises a CORESET;
• the first signaling is Downlink Control Information (DCI), and the first field in the first signaling is a Downlink Assignment Index (DAI) in the DCI;
• the second signaling is DCI, and the second field in the second signaling is a DAI in the DCI.