Control channel candidates can be transmitted in at least one shortened transmission time interval in a subframe and set of resource blocks corresponding to control channel candidates in the at least one shortened transmission time interval. A determination can be made about whether at least one resource block of the set of resource blocks at least partially overlaps with a broadcast control channel or signal. A determination can be made about control resource elements for transmission of a control channel candidate based on the determination about whether the at least one resource block of the set of resource blocks at least partially overlaps with the broadcast control channel or signal. The control channel candidate can be transmitted in the at least one shortened transmission time interval according to the determined control resource elements.