Wireless communication method for uplink control information
A user equipment (UE) executes a wireless communication method for execution by a user equipment (UE). The UE receives physical uplink control channel (PUCCH)-related configuration information and a physical downlink shared channel (PDSCH). The UE determines a slot/sub-slot location n for transmitting uplink control information (UCI) on a PUCCH, where n is a natural number slot/sub-slot index. The UE determines to transmit the PUCCH on a determined cell/carrier at slot/sub-slot location n based on one or more conditions in the PUCCH-related configuration information, wherein the determined cell/carrier comprises a first type cell/carrier or at least one second type cell/carrier. The UE transmits the PUCCH on the determined cell/carrier at slot/sub-slot location n.
1 . A wireless communication method for uplink control information (UCI) for execution by a user equipment (UE), comprising:
receiving physical uplink control channel (PUCCH)-related information;
receiving a physical downlink shared channel (PDSCH);
determining a slot/sub-slot location n for transmitting the uplink control information (UCI) on a PUCCH, wherein n is a natural number slot/sub-slot index;
determining a cell/carrier at the slot/sub-slot location n based on one or more conditions in the PUCCH-related information, wherein the determined cell/carrier comprises a first type cell/carrier or a second type cell/carrier; and
transmitting the PUCCH on the determined cell/carrier at the slot/sub-slot location n;
wherein the UCI includes
a scheduling request (SR) initialized by the UE; or
information of hybrid automatic repeat request acknowledgement or negative acknowledgement feedback (HARQ ACK/NACK) responding the received PDSCH.
2 . The wireless communication method of claim 1 , wherein the UE determines to transmit the PUCCH on the second type cell/carrier at the slot/sub-slot location n when at least one of following conditions in the received PUCCH-related information is satisfied:
in addition to the first type cell/carrier, at least one second type cell/carrier supporting PUCCH cell/carrier switching within a PUCCH group comprising the first type cell/carrier is activated;
an uplink (UL) bandwidth part (BWP) of the at least one second type cell/carrier supporting PUCCH cell/carrier switching within the PUCCH group is activated;
at least a set of switching sequence indicating an order of PUCCH cell/carrier switching among the first type cell/carrier and the at least one second type cell/carrier at slot/sub-slot granularity within the PUCCH group for one or more than one slot/sub-slot is configured; and
a numerical indication of a cell/carrier in the set of switching sequence for transmission of the PUCCH at the slot/sub-slot location n is other than zero.
3 . The wireless communication method of claim 1 , wherein the UE determines to transmit the PUCCH on the first type cell/carrier at the slot/sub-slot location n when at least one of the following conditions in the received PUCCH-related information is satisfied:
at least one second type cell/carrier supporting PUCCH cell/carrier switching within a PUCCH group is not activated;
an UL BWP of the at least one second type cell/carrier supporting PUCCH cell/carrier switching within the PUCCH group is not activated;
a set of switching sequence indicating an order of PUCCH cell/carrier switching among the first type cell/carrier and the at least one second type cell/carrier at slot/sub-slot granularity within the PUCCH group for one or more than one slot/sub-slot is not configured; or
the set of switching sequence is configured and a numerical indication of a cell/carrier in the set of switching sequence for transmission of the PUCCH at the slot/sub-slot location n is zero.
4 . The wireless communication method of claim 1 , wherein the PDSCH is associated with a downlink control information (DCI), and the DCI does not include a field of PUCCH cell/carrier indication.
5 . The wireless communication method of claim 4 , wherein the PDSCH is received at a slot/sub-slot location n-K1, K1 being a positive integer HARQ feedback timing offset, the UE determines the slot/sub-slot location n based on the HARQ feedback timing offset K1 indicated in the DCI for transmitting a Type 1 HARQ-ACK codebook comprising a HARQ-ACK bit responding to the received PDSCH, wherein the HARQ feedback timing offset K1 is determined based on numerology of the first type cell/carrier, and a K1 set for constructing the Type 1 HARQ-ACK codebook is associated with the first type cell/carrier.
6 . The wireless communication method of claim 2 , wherein at least one PUCCH resource for transmission of the PUCCH at the slot/sub-slot location n is configured for each one of the at least one second type cell/carrier supporting PUCCH cell/carrier switching.
7 . The wireless communication method of claim 6 , wherein the PDSCH is associated with a DCI, a PUCCH resource used for transmission of the PUCCH is indicated by a PUCCH resource indication (PRI) in the DCI, and the PRI is with respect to the at least one PUCCH resource configured for the second type cell/carrier indicated by the switching sequence.
8 . The wireless communication method of claim 6 , wherein the at least one PUCCH resource for one of the at least one second type cell/carrier supporting PUCCH cell/carrier switching is configured separately from at least one PUCCH resource for one of at least one second type cell/carrier not supporting PUCCH cell/carrier switching.
9 . The wireless communication method of claim 1 , wherein the first type cell/carrier is one of primary cell (PCell), primary secondary cell (PSCell), or PUCCH-SCell in a PUCCH group, and the second type cell/carrier is one of at least one SCell within the same PUCCH group of the first type cell/carrier, one or more than one PUCCH group supporting PUCCH cell/carrier switching is configured for the UE.
10 . The wireless communication method of claim 2 , wherein the set of switching sequence is a periodically generated time pattern, a slot/sub-slot length for each numerical indication represented by a bit in the switching sequence and the periodicity length of the time pattern are determined based on numerology of the first type cell/carrier.
11 . The wireless communication method of claim 9 , wherein when the determined cell/carrier is the second type cell/carrier and when the PUCCH slot/sub-slot length of the second type cell/carrier is shorter than the slot/sub-slot length of the first type cell/carrier, the UE selects the first slot/sub-slot of the second type cell/carrier overlapping with the slot/sub-slot location n of the first type cell/carrier for transmission of the PUCCH.
12 . The wireless communication method of claim 1 , wherein when a plurality of PUCCH groups supporting PUCCH cell/carrier switching are configured for the UE, a set of switching sequence for PUCCH cell/carrier switching in each PUCCH group is configured on a per-PUCCH group basis.
13 . A wireless communication method for uplink control information (UCI) for execution by a base station, comprising:
transmitting physical uplink control channel (PUCCH)-related information;
transmitting a physical downlink shared channel (PDSCH); and
receiving, on a cell/carrier at a slot/sub-slot location n, the uplink control information (UCI) on a PUCCH, wherein n is a natural number slot/sub-slot index;
wherein the cell/carrier is determined based on one or more conditions in the PUCCH-related information and is associated with the slot/sub-slot location n; and
the determined cell/carrier comprises a first type cell/carrier or a second type cell/carrier;
wherein the UCI includes:
a scheduling request (SR) initialized by a user equipment (UE); or
information of hybrid automatic repeat request acknowledgement or negative acknowledgement feedback (HARQ ACK/NACK) responding the received PDSCH.
14 . The wireless communication method of claim 13 , wherein the PUCCH is received by the base station on the second type cell/carrier at the slot/sub-slot location n when following conditions in the transmitted PUCCH-related information are satisfied:
in addition to the first type cell/carrier, at least one second type cell/carrier supporting PUCCH cell/carrier switching within a PUCCH group comprising the first type cell/carrier is activated by the base station;
an uplink (UL) bandwidth part (BWP) of the at least one second type cell/carrier supporting PUCCH cell/carrier switching within the PUCCH group is activated by the base station;
at least a set of switching sequence indicating an order of PUCCH cell/carrier switching among the first type cell/carrier and the at least one second type cell/carrier at slot/sub-slot granularity within the PUCCH group for one or more than one slot/sub-slot is configured by the base station; and
a numerical indication of a cell/carrier in the set of switching sequence for transmission of the PUCCH at the slot/sub-slot location n is other than zero.
15 . The wireless communication method of claim 13 , wherein the PUCCH is received by the base station on the first type cell/carrier at the slot/sub-slot location n when at least one of the following conditions in the transmitted PUCCH-related information is satisfied:
at least one second type cell/carrier supporting PUCCH cell/carrier switching within a PUCCH group is not activated by the base station;
an UL BWP of the at least one second type cell/carrier supporting PUCCH cell/carrier switching within the PUCCH group is not activated by the base station;
a set of switching sequence indicating an order of PUCCH cell/carrier switching among the first type cell/carrier and the at least one second type cell/carrier at slot/sub-slot granularity within the PUCCH group for one or more than one slot/sub-slot is not configured by the base station; or
the set of switching sequence is configured by the base station and a numerical indication of a cell/carrier in the set of switching sequence for transmission of the PUCCH at the slot/sub-slot location n is zero.
16 . The wireless communication method of claim 13 ,
wherein the PDSCH is transmitted by the base station at a slot/sub-slot location n−K1, K1 being a positive integer HARQ feedback timing offset, the slot/sub-slot location n is determined based on the HARQ feedback timing offset K1 indicated in the DCI for receiving a Type 1 HARQ-ACK codebook comprising a HARQ-ACK bit responding to the transmitted PDSCH, wherein the HARQ feedback timing offset K1 is determined based on numerology of the first type cell/carrier, and a K1 set for constructing the Type 1 HARQ-ACK codebook is associated with the first type cell/carrier.
17 . The wireless communication method of claim 14 , wherein the PDSCH is associated with a DCI transmitted by the base station, at least one PUCCH resource for transmission of the PUCCH at the slot/sub-slot location n is configured by the base station for each one of the at least one second type cell/carrier supporting PUCCH cell/carrier switching, and a PUCCH resource used for transmission of the PUCCH is indicated by a PUCCH resource indication (PRI) in the DCI; wherein the PRI is with respect to the at least one PUCCH resource configured for the second type cell/carrier indicated by the switching sequence.
18 . The wireless communication method of claim 13 , wherein the first type cell/carrier is one of primary cell (PCell), primary secondary cell (PSCell), or PUCCH-SCell in a PUCCH group, and the second type cell/carrier is one of at least one SCell within the same PUCCH group of the first type cell/carrier, one or more than one PUCCH group supporting PUCCH cell/carrier switching is configured by the base station for a user equipment (UE).
19 . The wireless communication method of claim 18 , a set of switching sequence for PUCCH cell/carrier switching in each PUCCH group is configured by the base station on a per-PUCCH group basis.
20 . A user equipment (UE), comprising:
a transceiver;
a memory storing instructions; and
a processor executing the instructions to perform:
receiving physical uplink control channel (PUCCH)-related information;
receiving a physical downlink shared channel (PDSCH);
determining a slot/sub-slot location n for transmitting uplink control information (UCI) on a PUCCH, wherein n is a natural number slot/sub-slot index;
determining a cell/carrier at the slot/sub-slot location n based on one or more conditions in the PUCCH-related information, wherein the determined cell/carrier comprises a first type cell/carrier or a second type cell/carrier; and
transmitting the PUCCH on the determined cell/carrier at the slot/sub-slot location n;
wherein the UCI includes
a scheduling request (SR) initialized by the UE; or
information of hybrid automatic repeat request acknowledgement or negative acknowledgement feedback (HARQ ACK/NACK) responding the received PDSCH.