In a possible example, the cached data includes at least one of: data cached in an RLC layer of the terminal and data cached in a PDCP layer of the terminal.

In a possible example, the parameter associated with the cached data to be transmitted of the terminal includes any one of: a PHY-layer parameter numerology of the licensed resource used to transmit the cached data, a TTI duration of the licensed resource used to transmit the cached data and a data size of the cached data.

The second parameter includes at least one of: a resource type of the PUCCH resource, a resource block identifier of the PUCCH resource and a total number of repeated SR transmission times on the PUCCH resource.

In a possible example, the PUCCH resource includes at least one of: a short-duration PUCCH resource and a long-duration PUCCH resource.

The solutions of the embodiments of the disclosure are introduced mainly from the angle of interaction between each network element. It can be understood that, for realizing the functions, the terminal and the network-side device include corresponding hardware structures and/or software modules executing each function. Those skilled in the art may easily realize that the units and algorithm operations of each example described in combination with the embodiments disclosed in the disclosure may be implemented by hardware or a combination of the hardware and computer software in the disclosure. Whether a certain function is executed by the hardware or in a manner of driving the hardware by the computer software depends on specific applications and design constraints of the technical solutions. Professionals may realize the described functions for each specific application by use of different methods, but such realization shall fall within the scope of the disclosure.