Method and device for determining a HARQ-ACK position
The application provides a method and device in a node for wireless communications. A node receives a first information block and receives a first signaling, the first signaling corresponds to a first cell set, the first information block is used to determine the first cell set; a node transmits a first signal in a target slot, the first signal carries a first HARQ bit block, the first HARQ bit block comprises a target HARQ-ACK bit, a detection on the first signaling is used to determine a bit value of the target HARQ-ACK bit; time-domain resources occupied by the first signaling are used to determine a reference slot; the first signaling is used to determine a number of slot(s) between the reference slot and the target slot; a reference serving cell is a serving cell related to the first cell set. The present application ensures a transmission of HARQ-ACK bits.
1 . A user equipment (UE) configured for wireless communications, the UE comprising:
a receiver configured to receive a first information block, the first information block being used to determine a first cell set, wherein the first cell set comprises multiple serving cells, wherein a reference serving cell is a serving cell related to the first cell set;
the receiver is configured to receive a first signaling, the first signaling corresponding to the first cell set; and
a transmitter configured to transmit a first signal in a target slot, the first signal including a first hybrid automatic repeat request (HARQ) bit block, the first HARQ bit block comprising multiple HARQ-acknowledgement (HARQ-ACK) bits, the first HARQ bit block comprising a target HARQ-ACK bit, a detection on the first signaling being used to determine a bit value of the target HARQ-ACK bit, wherein a position of the target HARQ-ACK bit in the first HARQ bit block is related to the reference serving cell, wherein time-domain resources occupied by the first signaling are used to determine a reference slot, the first signaling is used to determine a number of slots between the reference slot and the target slot, and a time length of the reference slot is related to a Subcarrier Spacing (SCS) of a subcarrier occupied by the first signal.
2 . The UE of claim 1 , wherein the reference serving cell is a predefined serving cell comprised in the first cell set, and the first signaling includes a downlink control information (DCI) format, a DCI format included in the first signaling comprises information other than physical downlink shared channel (PDSCH) scheduling information, wherein a position of the target HARQ-ACK bit in the first HARQ bit block is the same as a position of a HARQ-ACK bit of a PDSCH belonging to the reference serving cell and corresponding to the first signaling in the first HARQ bit block.
3 . The UE of claim 1 , wherein a first delay value is equal to a number of slots between the reference slot and the target slot, wherein the first delay value is a delay value comprised in a target delay set, the target delay set comprises at least one delay value, wherein a DCI format included in the first signaling is used to determine the target delay set.
4 . The UE of claim 1 , wherein the first signal is later than the first signaling in time domain, and a number of time-domain symbols between the first signal and the first signaling in time domain is not less than a first threshold, wherein the first threshold is greater than 0, wherein a first index value is equal to an index value of an SCS of a subcarrier occupied by the first signaling in frequency domain, a second index value is equal to an index value of an SCS of a subcarrier occupied by the first signal in frequency domain, and a smaller one of the first index value and the second index value is used to determine the first threshold.
5 . The UE of claim 1 , wherein the first signaling comprises a first DCI format, and a first field is a field comprised in the first DCI format, and the first field comprised in the first signaling is set to a predefined value, wherein a size of the first DCI format is related to a number of serving cells comprised in the first cell set, wherein a position of the first field in the first DCI format is used to determine a first serving cell from the first cell set, and the first DCI format is used for the first serving cell.
6 . The UE of claim 1 , wherein a serving cell to which the first signaling belongs and a time-domain occasion occupied by the first signaling in a serving cell to which it belongs are used to determine a position of the target HARQ-ACK bit in the first HARQ bit block, wherein a row index in a time-domain resource assignment table belonging to the reference serving cell is used to determine a time-domain occasion occupied by the first signaling in a serving cell to which it belongs.
7 . The UE of claim 1 , wherein time-domain resources occupied by the first signaling belong to a first time-domain occasion, the first time-domain occasion is a time-domain occasion comprised in a first occasion set, the first occasion set is one of M1 occasion sets, and any of the M1 occasion sets comprise at least one time-domain occasion; the M1 occasion sets respectively correspond to M1 serving cells, a serving cell to which the first signaling belongs is one of the M1 serving cells, the first occasion set is an occasion set corresponding to a serving cell to which the first signaling belongs; the M1 serving cells are indexed in order, and time-domain occasions comprised in the first occasion set are indexed in order; HARQ-ACK bits comprised in the first HARQ bit block are indexed in order, any time-domain occasion comprised in any of the M1 occasion sets corresponds to at least one HARQ-ACK bit in the first HARQ bit block, the target HARQ-ACK bit is a HARQ-ACK bit corresponding to the first time-domain occasion in the first HARQ bit block, and an index of the target HARQ-ACK bit in the first HARQ bit block is related to both an index of a serving cell corresponding to the first occasion set and an index of the first time-domain occasion in the first occasion set.
8 . A base station configured for wireless communications, the base station comprising:
a transmitter configured to transmit a first information block, the first information block being used to determine a first cell set, wherein the first cell set comprises multiple serving cells, wherein a reference serving cell is a serving cell related to the first cell set;
the transmitter is configured to transmit a first signaling, the first signaling corresponding to the first cell set; and
a receiver configured to receive a first signal in a target slot, the first signal including a first hybrid automatic repeat request (HARQ) bit block, the first HARQ bit block comprising multiple HARQ-acknowledgement (HARQ-ACK) bits, the first HARQ bit block comprising a target HARQ-ACK bit, a detection on the first signaling being used to determine a bit value of the target HARQ-ACK bit, wherein a position of the target HARQ-ACK bit in the first HARQ bit block is related to the reference serving cell, wherein time-domain resources occupied by the first signaling are used to determine a reference slot, the first signaling is used to determine a number of slots between the reference slot and the target slot, and a time length of the reference slot is related to an SCS of a subcarrier occupied by the first signal.
9 . The base station of claim 8 , wherein the reference serving cell is a predefined serving cell comprised in the first cell set, and the first signaling includes a downlink control information (DCI) format, a DCI format included in the first signaling comprises information other than physical downlink shared channel (PDSCH) scheduling information, wherein a position of the target HARQ-ACK bit in the first HARQ bit block is the same as a position of a HARQ-ACK bit of a PDSCH belonging to the reference serving cell and corresponding to the first signaling in the first HARQ bit block.
10 . The base station of claim 8 , wherein a first delay value is equal to a number of slots between the reference slot and the target slot, wherein the first delay value is a delay value comprised in a target delay set, the target delay set comprises at least one delay value, wherein a DCI format included in the first signaling is used to determine the target delay set.
11 . The base station of claim 8 , wherein the first signal is later than the first signaling in time domain, and a number of time-domain symbols between the first signal and the first signaling in time domain is not less than a first threshold, wherein the first threshold is greater than 0, wherein a first index value is equal to an index value of an SCS of a subcarrier occupied by the first signaling in frequency domain, a second index value is equal to an index value of an SCS of a subcarrier occupied by the first signal in frequency domain, and a smaller one of the first index value and the second index value is used to determine the first threshold.
12 . The base station of claim 8 , wherein the first signaling comprises a first DCI format, and a first field is a field comprised in the first DCI format, and the first field comprised in the first signaling is set to a predefined value, wherein a size of the first DCI format is related to a number of serving cells comprised in the first cell set, wherein a position of the first field in the first DCI format is used to determine a first serving cell from the first cell set, and the first DCI format is used for the first serving cell.
13 . The base station of claim 8 , wherein a serving cell to which the first signaling belongs and a time-domain occasion occupied by the first signaling in a serving cell to which it belongs are used to determine a position of the target HARQ-ACK bit in the first HARQ bit block, wherein a row index in a time-domain resource assignment table belonging to the reference serving cell is used to determine a time-domain occasion occupied by the first signaling in a serving cell to which it belongs.
14 . A method for use in a user equipment (UE) configured for wireless communications, the method comprising:
receiving a first information block, the first information block being used to determine a first cell set, wherein the first cell set comprises multiple serving cells, wherein a reference serving cell is a serving cell related to the first cell set;
receiving a first signaling, the first signaling corresponding to the first cell set; and
transmitting a first signal in a target slot, the first signal including a first hybrid automatic repeat request (HARQ) bit block, the first HARQ bit block comprising multiple HARQ-acknowledgement (HARQ-ACK) bits, the first HARQ bit block comprising a target HARQ-ACK bit, a detection on the first signaling being used to determine a bit value of the target HARQ-ACK bit, wherein a position of the target HARQ-ACK bit in the first HARQ bit block is related to the reference serving cell, wherein time-domain resources occupied by the first signaling are used to determine a reference slot, the first signaling is used to determine a number of slots between the reference slot and the target slot, and a time length of the reference slot is related to an SCS of a subcarrier occupied by the first signal.
15 . The method of claim 14 , wherein the reference serving cell is a predefined serving cell comprised in the first cell set, and the first signaling includes a downlink control information (DCI) format, a DCI format included in the first signaling comprises information other than physical downlink shared channel (PDSCH) scheduling information, wherein a position of the target HARQ-ACK bit in the first HARQ bit block is the same as a position of a HARQ-ACK bit of a PDSCH belonging to the reference serving cell and corresponding to the first signaling in the first HARQ bit block.
16 . The method of claim 14 , wherein a first delay value is equal to a number of slots between the reference slot and the target slot, wherein the first delay value is a delay value comprised in a target delay set, the target delay set comprises at least one delay value, a DCI format included in the first signaling is used to determine the target delay set.
17 . The method of claim 14 , wherein the first signal is later than the first signaling in time domain, a number of time-domain symbols between the first signal and the first signaling in time domain is not less than a first threshold, wherein the first threshold is greater than 0, wherein a first index value is equal to an index value of an SCS of a subcarrier occupied by the first signaling in frequency domain, a second index value is equal to an index value of an SCS of a subcarrier occupied by the first signal in frequency domain, and a smaller one of the first index value and the second index value is used to determine the first threshold.
18 . The method of claim 14 , wherein the first signaling comprises a first DCI format, and a first field is a field comprised in the first DCI format, and the first field comprised in the first signaling is set to a predefined value, wherein a size of the first DCI format is related to a number of serving cells comprised in the first cell set, wherein a position of the first field in the first DCI format is used to determine a first serving cell from the first cell set, and the first DCI format is used for the first serving cell.
19 . The method of claim 14 , wherein a serving cell to which the first signaling belongs and a time-domain occasion occupied by the first signaling in a serving cell to which it belongs are used to determine a position of the target HARQ-ACK bit in the first HARQ bit block, wherein a row index in a time-domain resource assignment table belonging to the reference serving cell is used to determine a time-domain occasion occupied by the first signaling in a serving cell to which it belongs.
20 . The method of claim 14 , wherein time-domain resources occupied by the first signaling belong to a first time-domain occasion, the first time-domain occasion is a time-domain occasion comprised in a first occasion set, the first occasion set is one of M1 occasion sets, and any of the M1 occasion sets comprise at least one time-domain occasion; the M1 occasion sets respectively correspond to M1 serving cells, a serving cell to which the first signaling belongs is one of the M1 serving cells, the first occasion set is an occasion set corresponding to a serving cell to which the first signaling belongs; the M1 serving cells are indexed in order, and time-domain occasions comprised in the first occasion set are indexed in order; HARQ-ACK bits comprised in the first HARQ bit block are indexed in order, any time-domain occasion comprised in any of the M1 occasion sets corresponds to at least one HARQ-ACK bit in the first HARQ bit block, the target HARQ-ACK bit is a HARQ-ACK bit corresponding to the first time-domain occasion in the first HARQ bit block, and an index of the target HARQ-ACK bit in the first HARQ bit block is related to both an index of a serving cell corresponding to the first occasion set and an index of the first time-domain occasion in the first occasion set.