Methods, systems, and devices for wireless communication are described that provide scheduling request (SR) resources that may be used by a user equipment (UE) to request uplink resources. SR resources may be allocated within random access channel resources, and a UE may use the SR resources to transmit a SR. The random access resources may be allocated in a first duration transmission time interval (TTI) that has a duration that is shorter than a second duration TTI. The SR resources may be a subset of random access preambles associated with the random access resources.