User equipment, UE, comprising: a transmission unit , configured to send, to a base station, a random access request message carrying short subframe service information, wherein the short subframe service information indicates that the UE is to perform a short subframe service after a random access procedure is triggered, and duration of a short subframe is less than 1 millisecond; and a processing unit , configured to instruct, after transmission of the random access request message is complete, the transmission unit to transmit rest messages of the random access procedure over a resource corresponding to the short subframe service, wherein the resource comprises a time domain resource and a frequency domain resource that are configured by the base station for the UE to perform the short subframe service, characterized in that the transmission unit is specifically configured to: send, to the base station, a first preamble over a first random access channel, wherein bits of the first preamble are the 0 th to the N th bits, wherein N≥64 and N is an integer, wherein the first preamble comprises a first group of preambles and a second group of preambles, wherein the first group of preambles comprises the 0 th to the 63 rd bits of preambles, the second group of preambles comprises the 64 th to the N th bits of preambles, and the second group of preambles is used to indicate to the base station that the UE is to perform the short subframe service after the random access procedure is triggered. a transmission unit , configured to send, to a base station, a random access request message carrying short subframe service information, wherein the short subframe service information indicates that the UE is to perform a short subframe service after a random access procedure is triggered, and duration of a short subframe is less than 1 millisecond; and a processing unit , configured to instruct, after transmission of the random access request message is complete, the transmission unit to transmit rest messages of the random access procedure over a resource corresponding to the short subframe service, wherein the resource comprises a time domain resource and a frequency domain resource that are configured by the base station for the UE to perform the short subframe service, characterized in that the transmission unit is specifically configured to: send, to the base station, a first preamble over a first random access channel, wherein bits of the first preamble are the 0 th to the N th bits, wherein N≥64 and N is an integer, wherein the first preamble comprises a first group of preambles and a second group of preambles, wherein the first group of preambles comprises the 0 th to the 63 rd bits of preambles, the second group of preambles comprises the 64 th to the N th bits of preambles, and the second group of preambles is used to indicate to the base station that the UE is to perform the short subframe service after the random access procedure is triggered. send, to the base station, a first preamble over a first random access channel, wherein bits of the first preamble are the 0 th to the N th bits, wherein N≥64 and N is an integer, wherein the first preamble comprises a first group of preambles and a second group of preambles, wherein the first group of preambles comprises the 0 th to the 63 rd bits of preambles, the second group of preambles comprises the 64 th to the N th bits of preambles, and the second group of preambles is used to indicate to the base station that the UE is to perform the short subframe service after the random access procedure is triggered. <EOS>