A UE receives a request from a base station to initiate a random access procedure in a connected state. When a first bandwidth part does not contain any random access resource that is available, the UE: switches to a second bandwidth part that contains one or more random access resources that are available and transmits a preamble sequence at a first random access resource selected from the one or more random access resources that are available. When the first bandwidth part contains the one or more random access resources that are available, the UE transmits the preamble sequence at a second random access resource selected from the one or more random access resources that are available. The second random access resource is at least a second time duration subsequent to the request. The second time duration is shorter than the first time duration.