Control channel signaling techniques in wireless systems with multiple possible transmission time intervals

An apparatus for wireless communication comprising:

• means for identifying a first transmission time interval (TTI) with a first duration that includes two or more symbol periods and a second TTI with a second duration that is less than the first duration;
• means for identifying a first search space in a control channel resource for monitoring for first control information associated with the first TTI;
• means for deriving, based at least in part on the location of the first search space in the control channel resource, a second search space in the control channel resource for monitoring for second control information associated with the second TTI;
• and
• means for monitoring at least one of the first search space in the control channel resource for the first control information or the second search space in the control channel resource for the second control information, wherein the first control information comprises first downlink control information (DCI) having a first DCI size and a first DCI format, and the second control information comprises second DCI having a second DCI size and a second DCI format, and wherein one or more of the first DCI size and the second DCI size or the first DCI format and the second DCI format is different.

An apparatus for wireless communication, comprising:

• a processor;
• memory in electronic communication with the processor;
• and
• instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to:
• identify a first transmission time interval (TTI) with a first duration that includes two or more symbol periods and a second TTI with a second duration that is less than the first duration;
• identify a first search space in a control channel resource for monitoring for first control information associated with the first TTI;
• derive, based at least in part on the location of the first search space in the control channel resource, a second search space in the control channel resource for monitoring for second control information associated with the second TTI;
• and
• monitor at least one of the first search space in the control channel resource for the first control information or the second search space in the control channel resource for the second control information, wherein the first control information comprises first downlink control information (DCI) having a first DCI size and a first DCI format, and the second control information comprises second DCI having a second DCI size and a second DCI format, and wherein one or more of the first DCI size and the second DCI size or the first DCI format and the second DCI format is different.

A non-transitory computer-readable medium storing code for wireless communication, the code comprising instructions executable to:

• identify a first transmission time interval (TTI) with a first duration that includes two or more symbol periods and a second TTI with a second duration that is less than the first duration;
• identify a first search space in a control channel resource for monitoring for first control information associated with the first TTI;
• derive, based at least in part on the location of the first search space in the control channel resource, a second search space in the control channel resource for monitoring for second control information associated with the second TTI;
• and
• monitor at least one of the first search space in the control channel resource for the first control information or the second search space in the control channel resource for the second control information, wherein the first control information comprises first downlink control information (DCI) having a first DCI size and a first DCI format, and the second control information comprises second DCI having a second DCI size and a second DCI format, and wherein one or more of the first DCI size and the second DCI size or the first DCI format and the second DCI format is different.