Abstract: A method and apparatus for establishing a connection are provided. The method includes: terminal equipment determines a connection establishment request format adopted when a connection establishment request message is sent from multiple connection establishment request formats; and the terminal equipment sends the connection establishment request message to network equipment according to the determined connection establishment request format. In such a manner, rapid connection establishment for different service requirements in multiple environments may be adapted.

Abstract: Provided are a method and terminal for data transmission. According to the method, a terminal determines, according to configuration information sent by a base station, to use at least two different TTIs to transmit different PDSCHs and/or PUSCHs on a target carrier. The terminal detects whether first DCI is present in at least one PDCCH in a target subframe on the target carrier, the first DCI being used to schedule at least one PDSCH transmitted in the target subframe on the target carrier. When the terminal detects that the first DCI is not present, or that the first DCI is present and a TTI of the at least one PDSCH scheduled by the first DCI is smaller than the target subframe, the terminal detects dedicated DCI in a dedicated downlink control channel in a target subframe, a TTI of a PDSCH or PUSCH scheduled by the dedicated DCI being smaller than the target subframe.