Control channel design for shared wireless communications

A method for wireless communications at a network device, comprising:

• monitoring a channel during a listen before talk procedure, the channel associated with communications between the network device and a user equipment (UE);
• transmitting, based at least in part on the monitoring and in accordance with a first control monitoring pattern, a downlink control channel to the UE in each transmission time interval of a first plurality of transmission time intervals, each transmission time interval of the first plurality of transmission time intervals having a first duration, wherein the first control monitoring pattern is associated with a first number of control channel elements (CCEs) for the UE;
• transmitting, to the UE, in accordance with the first control monitoring pattern, a physical downlink control channel comprising a switching indicator that indicates a switch from the first control monitoring pattern to a second control monitoring pattern that is different from the first control monitoring pattern and is associated with a second number of CCEs, wherein the physical downlink control channel transmitted in accordance with the first control monitoring pattern indicates a number of another first plurality of transmission time intervals that is associated with the transmitting in accordance with the first control monitoring pattern before the switch;
• determining a time period before the switch from the first control monitoring pattern to the second control monitoring pattern, wherein the time period corresponds to the number of the another first plurality of transmission time intervals that is associated with the transmitting in accordance with the first control monitoring pattern before the switch;
• and
• transmitting, after the time period and in accordance with the second control monitoring pattern, the downlink control channel to the UE in each transmission time interval of a second plurality of transmission time intervals, each transmission time interval of the second plurality of transmission time intervals having a second duration that is different from the first duration.

An apparatus for wireless communications at a user equipment (UE), comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• monitor, in accordance with a first control monitoring pattern, for a downlink control channel from a network device in each transmission time interval of a first plurality of transmission time intervals, each transmission time interval of the first plurality of transmission time intervals having a first duration, wherein the first control monitoring pattern is associated with a first number of blind decodes for the UE;
• receive, from the network device while monitoring for the downlink control channel in accordance with the first control monitoring pattern, a physical downlink control channel comprising a switching indicator that indicates a switch from the first control monitoring pattern to a second control monitoring pattern that is different from the first control monitoring pattern and is associated with a second number of blind decodes for the UE, wherein the physical downlink control channel received while monitoring in accordance with the first control monitoring pattern indicates a number of another first plurality of transmission time intervals that is associated with the monitoring for the downlink control channel in accordance with the first control monitoring pattern before performing the switch;
• perform the switch from the first control monitoring pattern to the second control monitoring pattern after a time period based at least in part on the physical downlink control channel, wherein the time period corresponds to the number of the another first plurality of transmission time intervals;
• and
• monitor, after performing the switch from the first control monitoring pattern to the second control monitoring pattern, for the downlink control channel from the network device in each transmission time interval of a second plurality of transmission time intervals in accordance with the second control monitoring pattern, each transmission time interval of the second plurality of transmission time intervals having a second duration that is different from the first duration.

An apparatus for wireless communications at a network device, comprising:

• a processor;
• memory coupled with the processor;
• and
• instructions stored in the memory and executable by the processor to cause the apparatus to:
• monitor a channel during a listen before talk procedure, the channel associated with communications between the network device and a user equipment (UE);
• transmit, based at least in part on the monitoring and in accordance with a first control monitoring pattern, a downlink control channel to the UE in each transmission time interval of a first plurality of transmission time intervals, each transmission time interval of the first plurality of transmission time intervals having a first duration, wherein the first control monitoring pattern is associated with a first number of control channel elements (CCEs) for the UE;
• transmit, to the UE, in accordance with the first control monitoring pattern, a physical downlink control channel comprising a switching indicator that indicates a switch from the first control monitoring pattern to a second control monitoring pattern that is different from the first control monitoring pattern and is associated with a second number of CCEs, wherein the physical downlink control channel transmitted in accordance with the first control monitoring pattern indicates a number of another first plurality of transmission time intervals that is associated with the transmitting in accordance with the first control monitoring pattern before the switch;
• determine a time period before the switch from the first control monitoring pattern to the second control monitoring pattern, wherein the time period corresponds to the number of the another first plurality of transmission time intervals that is associated with the transmitting in accordance with the first control monitoring pattern before the switch;
• and
• transmit, after the time period and in accordance with the second control monitoring pattern, the downlink control channel to the UE in each transmission time interval of a second plurality of transmission time intervals, each transmission time interval of the second plurality of transmission time intervals having a second duration that is different from the first duration.