Method for transmitting information, user equipment, access network device, and core network

1 . A method for transmitting information, performed by an access network device, comprising:

sending at least one of first indication information or core network information to a user equipment (UE), wherein the first indication information is configured to indicate whether a core network connected to the access network device supports sending a paging reason, and the core network information includes information of a core network that supports sending the paging reason;

wherein sending the first indication information to the UE comprises: sending the first indication information to the UE through a radio resource control (RRC) signaling;

wherein the method further comprises: acquiring a second request message sent, through a RRC signaling, by the UE, wherein the second request message includes information of a core network inquired by the UE, and the core network inquired by the UE is included in the core network connected to the access network device;

wherein the first indication information is configured to indicate whether the core network inquired by the UE supports sending the paging reason.

2 . The method of claim 1 , wherein sending at least one of the first indication information or the core network information to the UE comprises:

sending at least one of the first indication information or the core network information to the UE through system information.

3 . The method of claim 2 , wherein the system information comprises minimum system information; or the system information comprises other system information.

4 . The method of claim 3 , before sending at least one of the first indication information or the core network information to the UE through the system information, further comprising:

obtaining a first request message sent by the UE to enable the access network device to send, through the other system information based on the first request message, at least one of the first indication information or the core network information to the UE.

5 . An access network device, comprising: a transceiver; a memory; and a processor connected to the transceiver and the memory and configured to control the transceiver to transmit and receive a wireless signal and perform claim 1 by executing computer-executable instructions on the memory.

6 . A method for transmitting information, performed by a core network, comprising:

sending second indication information to a user equipment (UE) through a non-access stratum (NAS) signaling, wherein the second indication information is configured to indicate whether the core network supports sending a paging reason; and

acquiring a second request message sent by the UE, wherein the second request message includes information of a core network inquired by the UE, and the core network inquired by the UE is included in a core network connected to an access network device;

wherein the second indication information is configured to indicate whether the core network inquired by the UE supports sending the paging reason.

7 . The method of claim 6 , before sending the second indication information to the UE through the NAS signaling, further comprising:

determining a type of the UE based on registration information of the UE; and

determining, based on the type of the UE, whether to send the second indication information to the UE.

8 . The method of claim 7 , wherein in response to the type of the UE being a multi-card UE and more than one card in the UE being activated, the second indication information is sent to the UE.

9 . The method of claim 6 , before sending the second indication information to the UE through the NAS signaling, further comprising:

acquiring a third request message sent by the UE, to enable the core network to send, through the NAS signaling based on the third request message, the second indication information to the UE.

10 . A core network, comprising: a transceiver; a memory; and a processor connected to the transceiver and the memory and configured to control the transceiver to transmit and receive a wireless signal and perform the method of claim 6 by executing computer-executable instructions on the memory.

11 . A method for transmitting information, performed by a user equipment (UE), comprising:

receiving information, wherein the information comprises at least one of first indication information sent by an access network device, core network information sent by the access network device, or second indication information sent by a core network; in which the first indication information is configured to indicate whether a core network connected to the access network device supports sending a paging reason, the core network information includes information of a core network that supports sending the paging reason, and the second indication information is configured to indicate whether the core network sending the second indication information supports sending the paging reason;

wherein the first indication information sent by the access network device is received through a radio resource control (RRC) signaling;

wherein before receiving the first indication information sent by the access network device through the RRC signaling, the method further comprises sending a second request message to the UE through a RRC signaling, wherein the second request message includes information of a core network inquired by the UE, and the core network inquired by the UE is included in the core network connected to the access network device.

12 . The method of claim 11 , wherein at least one of the first indication information or the core network information sent by the access network device is received through system information.

13 . The method of claim 12 , wherein the system information comprises minimum system information; or the system information comprises other system information.

14 . The method of claim 13 , before receiving the information, further comprising:

sending a first request message to the access network device.

15 . The method of claim 11 , wherein the second indication information sent by the core network is received through a non-access stratum (NAS) signaling.

16 . The method of claim 11 , before receiving the information, further comprising:

sending a third request message to the core network.

17 . A user equipment (UE), comprising: a transceiver; a memory; and a processor connected to the transceiver and the memory and configured to control the transceiver to transmit and receive a wireless signal and perform the method of claim 11 by executing computer-executable instructions on the memory.