Information transmission method, base station, and user equipment

An apparatus for a terminal, comprising:

• a non-transitory memory storage comprising instructions;
• and
• one or more processors in communication with the memory storage, wherein the one or more processors execute the instructions to cause the apparatus to:
• receive a first indication from a first base station of a first radio access technology (RAT), wherein the first indication comprises a first identifier allocated by the first base station to the terminal, the first indication instructs the terminal to enter a non-connected mode, and the first identifier identifies the terminal in the non-connected mode in an area configured by the first base station;
• upon receiving the first indication, enter the non-connected mode and retain a radio resource control (RRC) context corresponding to the first RAT;
• send, with the terminal being in the non-connected mode, the first identifier to a second base station of a second RAT for the second base station to use to request a context of the terminal from the first base station;
• in response to determining that the second RAT is different than the first RAT, release the RRC context corresponding to the first RAT before establishing a RRC connection with the second base station;
• and
• perform, after sending the first identifier to the second base station, the RRC connection with the second base station based on RRC configuration information corresponding to the second RAT received from the second base station.

A non-transitory processor-readable medium having processor-executable instructions stored thereon for a terminal, the processor-executable instructions, when executed by a processor, to cause the terminal to perform:

• receiving a first indication from a first base station of a first RAT, wherein the first indication comprises a first identifier allocated by the first base station to the terminal, the first indication instructs the terminal to enter a non-connected mode, and the first identifier identifies the terminal in the non-connected mode in an area configured by the first base station;
• upon receiving the first indication, entering the non-connected mode, and retaining a RRC context corresponding to the first RAT;
• sending, with the terminal being in the non-connected mode, the first identifier to a second base station of a second RAT for the second base station to use to request a context of the terminal from the first base station;
• in response to determining that the second RAT is different than the first RAT, releasing the RRC context corresponding to the first RAT before establishing a RRC connection with the second base station;
• and
• performing, after sending the first identifier to the second base station, the RRC connection with the second base station based on RRC configuration information corresponding to the second RAT received from the second base station.