Methods and systems for multi-channel scheduling on one or more cells
Methods and systems for techniques for determining control information in wireless networks are disclosed. In an implementation, a method of wireless communication includes receiving, by a wireless device, a first configuration of multiple traffic channels on multiple cells scheduled by a downlink control information (DCI) and a second configuration of multiple traffic channels on one cell scheduled by the DCI, and receiving the multiple traffic channels scheduled by the DCI.
1 . A method of wireless communication, comprising:
receiving, by a wireless device, a first configuration of multiple traffic channels on multiple cells scheduled by a downlink control information (DCI) and a second configuration of multiple traffic channels on one cell scheduled by the DCI; and
receiving the multiple traffic channels on multiple cells or the multiple traffic channels on one cell scheduled by the DCI,
wherein the DCI include a counter downlink assignment index (C-DAI),
wherein a bit size of hybrid automatic repeat request acknowledgment (HARQ-ACK) bits for each C-DAI in a codebook is determined based on a maximum number of configured cells and a maximum number of configured physical downlink shared channels (PDSCHs), and a bit order of the HARQ-ACK bits for each C-DAI in a codebook is determined based on whether a corresponding bit of the HARQ-ACK bits relates to a single PDSCH scheduling on one cell in a multi-cell scheduling according to a cell index or a multi-transmission time interval (TTI) scheduling according to the cell index and a start and length indicator (SLIV) for a time domain order for each cell.
2 . The method of claim 1 , wherein the C-DAI increases by one per DCI for all scheduled traffic channels.
3 . The method of claim 2 , wherein the maximum number of configured cells corresponds to a multi-cell scheduling for scheduling multiple traffic channels on multiple cells scheduled by the DCI, and wherein the maximum number of configured PDSCHs corresponds to a multi-transmission time interval (TTI) scheduling for scheduling multiple traffic channels on one cell scheduled by the DCI across cells configured with multi-TTI scheduling.
4 . The method of claim 2 , wherein the HARQ-ACK bits for each C-DAI in a codebook includes a plurality of bits arranged in the order of: (1) one or more bits corresponding to a single PDSCH scheduling on one cell in a multi-cell scheduling according to a cell index; (2) one or more bits corresponding to a multi-TTI scheduling according to the cell index and a start and length indicator (SLIV) for a time domain order for each cell.
5 . The method of claim 2 , wherein the HARQ-ACK bits for each C-DAI in a codebook includes a plurality of bits arranged in the order of: (1) one or more bits corresponding to a multi-TTI scheduling according to a cell index and a start and length indicator (SLIV) for a time domain order for each cell; (2) one or more bits corresponding to a single PDSCH scheduling on one cell in a multi-cell scheduling according to the cell index.
6 . The method of claim 2 , wherein the HARQ-ACK bits for each C-DAI in a codebook includes a plurality of bits arranged according to a cell index.
7 . The method of claim 1 , wherein the C-DAI includes a first counter downlink assignment index (C-DAI) that increases by one per DCI for a scheduled single traffic channel on one cell in a multi-cell scheduling and a second C-DAI that increases by one per DCI for a scheduled multiple traffic channels on one cell across cells configured with multi-TTI scheduling in a same multi-cell scheduling.
8 . The method of claim 1 , wherein the multiple traffic channels include PDSCH, and wherein the maximum number of PDSCHs is determined based on at least one of:
a maximum number of configured cells for a multi-cell scheduling;
a maximum number of configured PDSCHs for a multi-TTI scheduling across cells configured with multi-TTI scheduling within the multi-cell scheduling;
a number of cells configured with multi-TTI scheduling; and
a higher layer signaling configuration.
9 . The method of claim 8 , wherein a maximum number of scheduled PDSCHs is determined by multiplying a maximum number of configured cells for the multi-cell scheduling or a number of cells configured with multi-TTI scheduling by a maximum number of configured PDSCHs for the multi-TTI scheduling across cells configured with multi-TTI scheduling within the multi-cell scheduling.
10 . The method of claim 9 , wherein the maximum number of scheduled PDSCHs is configured by a higher layer signaling, or is configured by a higher layer signaling to scale the determined maximum number of scheduled PDSCHs.
11 . The method of claim 8 , wherein a maximum number of scheduled PDSCHs is the maximum number of configured cells for the multi-cell scheduling.
12 . The method of claim 8 , wherein a maximum number of scheduled PDSCHs is the maximum number of configured PDSCHs for the multi-TTI scheduling across cells configured with multi-TTI scheduling within the multi-cell scheduling.
13 . The method of claim 8 , wherein a maximum number of scheduled PDSCHs is determined based on a greater value between the maximum number of configured cells for the multi-cell scheduling and the maximum number of configured PDSCHs for the multi-TTI scheduling across cells configured with multi-TTI scheduling within the multi-cell scheduling.
14 . An apparatus for wireless communication comprising at least one processor that is configured to cause the apparatus to carry out the method of claim 1 .
15 . A method of wireless communication, comprising:
receiving, by a wireless device, a first configuration of multiple traffic channels on multiple cells scheduled by a downlink control information (DCI) and a second configuration of multiple traffic channels on one cell scheduled by the DCI; and
receiving the multiple traffic channels scheduled by the DCI,
wherein the DCI includes a first counter downlink assignment index (C-DAI) that increases by one per DCI for a scheduled single traffic channel on one cell in a multi-cell scheduling and a second C-DAI that increases by one per DCI for a scheduled multiple traffic channels on one cell across cells configured with multi-TTI scheduling in a same multi-cell scheduling,
wherein HARQ-ACK bits for the first C-DAI in a first sub-codebook includes a plurality of bits arranged according to a cell index or corresponding to a single PDSCH scheduling on one cell in a multi-cell scheduling according to the cell index, and wherein HARQ-ACK bits for the second C-DAI in a second sub-codebook includes a plurality of bits arranged in order of one or more bits corresponding to a multi-TTI scheduling according to the cell index and a start and length indicator (SLIV) for a time domain order for each cell.
16 . A method of wireless communication, comprising:
receiving, by a wireless device, a first configuration of multiple traffic channels on multiple cells scheduled by a downlink control information (DCI) and a second configuration of multiple traffic channels on one cell scheduled by the DCI; and
receiving the multiple traffic channels scheduled by the DCI,
wherein the DCI includes a first counter downlink assignment index (C-DAI) that increases by one per DCI for a scheduled single traffic channel on one cell in a multi-cell scheduling and a second C-DAI that increases by one per DCI for a scheduled multiple traffic channels on one cell across cells configured with multi-TTI scheduling in a same multi-cell scheduling,
wherein HARQ-ACK bits for the second C-DAI in a first sub-codebook includes a plurality of bits arranged in order of one or more bits corresponding to a multi-TTI scheduling according to a cell index and a start and length indicator (SLIV) for a time domain order for each cell, and wherein HARQ-ACK bits for the first C-DAI in a second sub-codebook includes one or more bits arranged according to a cell index or corresponding to a single PDSCH scheduling on one cell in a multi-cell scheduling according to the cell index.
17 . A method of wireless communication, comprising:
configuring, by a network device, multiple traffic channels on one or more cells, the multiple traffic channels on multiple cells being scheduled by a downlink control information (DCI), the multiple traffic channels on one cell of the multiple cells being scheduled by the DCI; and
transmitting the multiple traffic channels on multiple cells or the multiple traffic channels on one cell scheduled by the DCI,
wherein the DCI include a counter downlink assignment index (C-DAI),
wherein a bit size of hybrid automatic repeat request acknowledgment (HARQ-ACK) bits for each C-DAI in a codebook is determined based on a maximum number of configured cells and a maximum number of configured physical downlink shared channels (PDSCHs), and a bit order of the HARQ-ACK bits for each C-DAI in a codebook is determined based on whether a corresponding bit of the HARQ-ACK bits relates to a single PDSCH scheduling on one cell in a multi-cell scheduling according to a cell index or a multi-transmission time interval (TTI) scheduling according to the cell index and a start and length indicator (SLIV) for a time domain order for each cell.
18 . The method of claim 17 , wherein the C-DAI increases by one per DCI for all scheduled traffic channels.
19 . The method of claim 17 , wherein the C-DAI includes a first counter downlink assignment index (C-DAI) that increases by one per DCI for a scheduled single traffic channel on one cell in a multi-cell scheduling and a second C-DAI that increases by one per DCI for a scheduled multiple traffic channels on one cell in a same multi-cell scheduling.
20 . The method of claim 17 , wherein the multiple traffic channels include PDSCH, and wherein the maximum number of PDSCHs is determined based on at least one of:
a maximum number of configured cells for a multi-cell scheduling;
a maximum number of configured PDSCHs for a multi-TTI scheduling across cells configured with multi-TTI scheduling within the multi-cell scheduling;
a number of cells configured with multi-TTI scheduling; and
a higher layer signaling configuration.