1. A method for operating and managing memory, comprising setting a subnet dependent convergence protocol layer (SNDCP) data queue, an SNDCP global array, a logic link control layer (LLC) data queue and an LLC global array; wherein, the method also comprises: the SNDCP compressing received uplink data, and storing SNDCP parameters obtained by dividing and identifying the compressed uplink data into the SNDCP data queue, and sending a characteristic parameter of the SNDCP data queue obtained after storing the SNDCP parameters to the LLC; the LLC storing the received characteristic parameter of the SNDCP data queue into the LLC data queue, and sending a characteristic parameter of the LLC data queue obtained after storing the received characteristic parameter of the SNDCP data queue to a radio link control layer (RLC); the RLC inputting the received characteristic parameter of the LLC data queue to an LLC callback function provided by the LLC, and calling the stored characteristic parameter of the SNDCP data queue stored by the LLC, and then inputting the characteristic parameter of the SNDCP data queue into the SNDCP callback function provided by the SNDCP, and calling the SNDCP parameters; the SNDCP storing SNDCP data packets obtained by dividing and assembling the compressed uplink data according to the SNDCP parameters into the SNDCP global array, the LLC obtaining the SNDCP data packets in the SNDCP global array and assembling the SNDCP data packets, and storing LLC data packets obtained by assembling the SNDCP data packets into the LLC global array, the RLC obtaining the LLC data packets in the LLC global array and processing the LLC data packets, and then sending the processed LLC data packets by an applied radio resource.