Granted Patent B2

US 12,739,787 · App. 18/574,455 · Granted Sep 15, 2026

Inventor: Wei Hong (Beijing, CN)

Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.

H04W68/005H04W68/02

Abstract

Claims (59)

1 . A method for realizing a paging cause indication, performed by a terminal device, comprising:

sending a first indication message to a core network device, wherein the first indication message is used for indicating whether the terminal device supports the paging cause indication;

receiving a paging cause, wherein the paging cause is sent by an access network device after determining, based on the first indication message, that the terminal device supports the paging cause indication;

sending a third indication message to the core network device in response to the terminal device no longer supporting the paging cause indication, wherein the third indication message is used for indicating that the terminal device no longer supports the paging cause indication;

wherein sending the first indication message or the third indication message to the core network device comprises:

determining, based on a network type of a network accessed by the terminal device, a target procedure for sending an indication message to the core network device; and

reporting the indication message to the core network device based on the target procedure.

2 . The method of claim 1 , further comprising at least one of:

receiving a second indication message sent by the core network device, wherein the second indication message is used for indicating whether the core network device supports the paging cause indication.

3 . The method of claim 1 , wherein reporting the indication message to the core network device based on the target procedure comprises:

reporting the third indication message to the core network device through an attach request signaling in response to the accessed network being an Evolution Universal Mobile Telecommunications System Terrestrial Radio Access Network (E-UTRAN) and the target procedure being an attach procedure; or

reporting the third indication message to the core network device through a tracking area update (TAU) request signaling in response to the accessed network being the E-UTRAN and the target procedure being a TAU procedure.

4 . The method of claim 2 , wherein the second indication message is sent by the core network device after determining, based on the first indication message, that the terminal device supports the paging cause indication.

5 . The method of claim 2 , wherein receiving the second indication message sent by the core network device comprises:

receiving the second indication message through a registration accept signaling in response to a network accessed by the terminal device being a new radio (NR) network; or

receiving the second indication message through an attach accept signaling or a tracking area update (TAU) accept signaling in response to the network accessed by the terminal device being an Evolution Universal Mobile Telecommunications System Terrestrial Radio Access Network (E-UTRAN).

6 . The method of claim 1 , wherein reporting the indication message to the core network device based on the target procedure comprises:

reporting the first indication message to the core network device through an attach request signaling in response to the accessed network being an Evolution Universal Mobile Telecommunications System Terrestrial Radio Access Network (E-UTRAN) and the target procedure being an attach procedure; or

reporting the first indication message to the core network device through a tracking area update (TAU) request signaling in response to the accessed network being the E-UTRAN and the target procedure being a TAU procedure.

7 . The method of claim 1 , wherein reporting the indication message to the core network device based on the target procedure comprises:

reporting the third indication message to the core network device through a registration request signaling in response to the accessed network being a new radio (NR) network and the target procedure being a registration procedure, a registration area management (RAM) procedure or a mobile registration update (MRU) procedure.

8 . The method of claim 1 , wherein determining, based on the network type of the network accessed by the terminal device, the target procedure for sending the indication message to the core network device comprises:

determining that the target procedure is one of: a registration procedure, a registration area management (RAM) procedure or a mobile registration update (MRU) procedure in response to the network accessed by the terminal device being a new radio (NR) network; or

determining that the target procedure is one of: an attach procedure or a tracking area update (TAU) procedure in response to the network accessed by the terminal device being an Evolution Universal Mobile Telecommunications System Terrestrial Radio Access Network (E-UTRAN).

9 . The method of claim 1 , wherein reporting the indication message to the core network device based on the target procedure comprises:

reporting the first indication message to the core network device through a registration request signaling in response to the accessed network being a new radio (NR) network and the target procedure being a registration procedure, a registration area management (RAM) procedure or a mobile registration update (MRU) procedure.

10 . A method for realizing a paging cause indication, performed by a core network device, comprising:

determining that a terminal device supports the paging cause indication and sending target indication information to an access network device, wherein the target indication information is used for indicating that the terminal device supports the paging cause indication;

receiving a first indication message sent, based on a target procedure, by the terminal device, wherein the first indication message is used for indicating whether the terminal device supports the paging cause indication;

receiving a third indication message sent, based on the target procedure, by the terminal device, wherein the third indication message is used for indicating that the terminal device no longer supports the paging cause indication;

wherein the target procedure is determined based on a network type of a network accessed by the terminal device.

11 . The method of claim 10 , further comprising at least one of:

sending a second indication message to at least one of the terminal device or the access network device, wherein the second indication message is used for indicating whether the core network device supports the paging cause indication.

12 . The method of claim 11 , further comprising:

determining that the core network device supports the paging cause indication; or

determining that both the terminal device and the core network device support the paging cause indication.

13 . The method of claim 11 , wherein sending the second indication message to the access network device comprises:

sending the second indication message to each access network device connected to the core network device;

sending the second indication message to each access network device within a range of tracking area (TA) or registration area (RA) where the terminal device is located; or

sending the second indication message to an access network device accessed by the terminal device.

14 . The method of claim 11 , wherein sending the second indication message to the access network device comprises:

determining, based on a network type of a network accessed by the terminal device, a target interface for sending the second indication message, and sending the second indication message to the access network device through the target interface.

15 . The method of claim 14 , wherein determining, based on the network type of the network accessed by the terminal device, the target interface for sending the second indication message and sending the second indication message to the access network device through the target interface comprises:

determining that the target interface is a NG interface in response to the accessed network being a new radio (NR) network and sending first core network update configuration information to the access network device through the NG interface, wherein the first core network update configuration information carries the second indication message; or

determining that the target interface is a S1 interface in response to the accessed network being an Evolution Universal Mobile Telecommunications System Terrestrial Radio Access Network (E-UTRAN) and sending second core network update configuration information to the access network device through the S1 interface, wherein the second core network update configuration information carries the second indication message.

16 . The method of claim 10 , wherein sending the target indication information to the access network device comprises:

sending a context configuration-related request of the terminal device to the access network device through an X2 interface or a NG interface, wherein the context configuration-related request carries the target indication information.

17 . A method for realizing a paging cause indication, performed by an access network device, comprising:

receiving target indication information sent by a core network device, wherein the target indication information is used for indicating whether a terminal device supports the paging cause indication; and

sending a paging cause to the terminal device in response to the terminal device being paged and the target indication information indicating that the terminal device supports the paging cause indication,

wherein the target indication information is sent by the terminal device to the core network device based on a target procedure, and the target procedure is determined based on a network type of a network accessed by the terminal device.

18 . The method of claim 17 , wherein sending the paging cause to the terminal device comprises:

determining a radio resource control (RRC) status of the terminal device, and sending the paging cause to the terminal device based on the RRC status.

19 . The method of claim 18 , wherein sending the paging cause to the terminal device based on the RRC status comprises:

sending the paging cause in a radio access network (RAN) paging message in response to the RRC status being a RRC inactive status; or

sending the paging cause in a paging message in response to the RRC status being a RRC idle status.

20 . The method of claim 17 , further comprising at least one of:

storing the target indication information in a context of the terminal device; and querying the target indication information from the context in response to the terminal device being paged; or

receiving a second indication message sent by the core network device, wherein the second indication message is used for indicating whether the core network device supports the paging cause indication.

Assignments (1)

Continuity (1)

References Cited (14)