Control channel monitoring procedure

1 . A method for wireless communication, comprising:

receiving, at a wireless device, a DCI that indicates a second monitoring behavior, during an application delay subsequent to a timer expiring event for triggering a first monitoring behavior,

wherein the first monitoring behavior monitors a physical downlink control channel (PDCCH) according to a search space set group that comprises a plurality of search space sets and the second monitoring behavior monitors the PDCCH according to the search space set group or skips PDCCH monitoring during a PDCCH skipping duration; and

monitoring, by the wireless device, the physical downlink control channel (PDCCH) using the first monitoring behavior subsequent to the application delay from the timer expiring event,

wherein the wireless device ignores the second monitoring behavior indicated by the DCI based at least on the second monitoring behavior being associated with a second application delay different than the application delay subsequent to the timer expiring event.

2 . The method of claim 1 , wherein the second monitoring behavior comprises at least one of: switching between different search space sets, switching between different groups of search space sets, or switching between different lists of parameters related to PDCCH monitoring.

3 . The method of claim 1 , wherein the DCI indicates an index of a search space set subgroup among search space set subgroups in the search space set group.

4 . The method of claim 3 , wherein the wireless device assumes that a lowest index of the search space set subgroup is used to determine a subsequent PDCCH monitoring occasion.

5 . The method of claim 1 , wherein the DCI indicates at least one of a threshold for a duration Ts, a threshold for a periodicity ks, a threshold for PDCCH monitoring offset Os, a threshold for a number of monitoring symbols in a slot Nsymb, or a threshold for a PDCCH monitoring frequency fs, and wherein the second monitoring behavior comprises at least one of:

a duration is smaller than the threshold for the duration Ts;

a periodicity is greater than the threshold for the periodicity ks;

a PDCCH monitoring offset is greater than the threshold for the PDCCH monitoring offset Os;

a number of monitoring symbols in a slot is smaller than the threshold for the number of monitoring symbols in a slot Nsymb; or

a PDCCH monitoring frequency is smaller than the threshold for the PDCCH monitoring frequency fs.

6 . The method of claim 1 , wherein the timer expiring event is based on a timer configured by a high layer parameter, and wherein the method further comprises at least one of:

resetting the timer after a slot or symbol when the wireless device receives the DCI or detects the PDCCH; and

decrementing the timer after each slot in an active DL BWP of a serving cell.

7 . The method of claim 1 , wherein the first monitoring behavior provides the wireless device with monitoring occasions to monitor a set of PDCCH candidates, wherein the set of PDCCH candidates includes at least one of the following: a DCI with CRC scrambled with a C-RNTI, a DCI with CRC scrambled with a SP-CSI-RNTI, a DCI with CRC scrambled with an MCS-C-RNTI, or a DCI with CRC scrambled with a CS-RNTI.

8 . The method of claim 1 , wherein the wireless device performs a report behavior based on the first monitoring behavior.

9 . A method for wireless communication, comprising:

transmitting, by a network device, to a wireless device, a DCI that indicates a second monitoring behavior for monitoring a control channel, during an application delay subsequent to a timer expiring event at the wireless device for triggering a first monitoring behavior,

wherein the first monitoring behavior monitors the control channel according to a search space set group that comprises a plurality of search space sets and the second monitoring behavior monitors the control channel according to the search space set group or skips monitoring during a skipping duration; and

receiving, by the network device, from the wireless device, a report that includes a set of monitoring parameters related to the wireless device monitoring the control channel, the set of monitoring parameters being associated with the first monitoring behavior based on the wireless device ignoring the second monitoring behavior indicated by the DCI due to the second monitoring behavior being associated with a second application delay different than the application delay subsequent to the timer expiring event.

10 . The method of claim 9 , wherein the control channel is a physical downlink control channel (PDCCH), the second monitoring behavior is a PDCCH monitoring behavior, and the wireless device is a user equipment (UE).

11 . The method of claim 10 , wherein the PDCCH monitoring behavior represents monitoring the PDCCH according to the search space sets in the search space set group.

12 . The method of claim 10 , wherein the DCI that indicates the PDCCH monitoring behavior schedules a data transmission.

13 . The method of claim 10 , wherein at least one field of the DCI indicates the second monitoring behavior, and wherein a bit width of the at least one field is determined by a high-layer parameter.

14 . The method of claim 10 , wherein at least one field of the DCI is reused to indicate the second monitoring behavior for at least one event.

15 . The method of claim 14 , wherein the event is at least one of the following:

all bits of a frequency domain resource assignment field are set to a predefined state; and/or

all bits of the fields, modulation and coding scheme, new data indicator and redundancy version of transport block 2 , are set to predefined states; or

UL-SCH indicator of “0”; and/or

CSI request of all zero(s);

wherein the predefined state is all zeros state or all ones state.

16 . An apparatus for wireless communication, comprising a memory and processor electronics, wherein the processor electronics reads code from the memory and causes the apparatus to:

receive a DCI that indicates a second monitoring behavior, during an application delay subsequent to a timer expiring event for triggering a first monitoring behavior, wherein the first monitoring behavior monitors a physical downlink control channel (PDCCH) according to a search space set group that comprises a plurality of search space sets and the second monitoring behavior monitors the PDCCH according to the search space set group or skips PDCCH monitoring during a PDCCH skipping duration; and

monitor the physical downlink control channel (PDCCH) using the first monitoring behavior subsequent to the application delay from the timer expiring event, based on ignoring the second monitoring behavior indicated by the DCI due to the second monitoring behavior being associated with a second application delay different than the application delay from the timer expiring event.

17 . An apparatus for wireless communication, comprising a memory and processor electronics, wherein the processor electronics reads code from the memory and causes the apparatus to:

transmit, to a wireless device, a DCI that indicates a second monitoring behavior for monitoring a control channel, during an application delay subsequent to a timer expiring event at the wireless device for triggering a first monitoring behavior, wherein the first monitoring behavior monitors the control channel according to a search space set group that comprises a plurality of search space sets and the second monitoring behavior monitors the control channel according to the search space set group or skips monitoring during a skipping duration; and

receive, from the wireless device, a report that includes a set of monitoring parameters related to the wireless device monitoring the control channel, the set of monitoring parameters being associated with the first monitoring behavior based on the wireless device ignoring the second monitoring behavior indicated by the DCI due to the second monitoring behavior being associated with a second application delay different than the application delay subsequent to the timer expiring event.