Abstract: Embodiments of a target edge application server (T-EAS) and a related method for supporting an application context relocation (ACR) procedure of user equipment (UE) in a communication network are disclosed. In response to a predicted movement of the UE from a current location to a predicted location within a coverage region of the T-EAS, the T-EAS is configured to receive, in an ACR execution phase of the ACR procedure, an application context of the UE from a source edge application server (S-EAS). Moreover, in response to obtaining information that the UE is no longer expected to move to the predicted location within the coverage region of the T-EAS, the T-EAS is further configured to perform, in a post-ACR clean-up phase of the ACR procedure, at least one post-ACR clean-up operation which at least includes discarding the application context.

Abstract: Embodiments of this application relate to the field of communications technologies, and disclose an application programming interface (API) topology hiding method, a device, and a system. A common API framework core function (CCF) receives, from a topology hiding request entity, a request message that includes information about an API and that is used to request to hide an API exposing function (AEF) that provides the API. Based on the request message, a topology hiding entry point used by an API invoker to invoke the API is determined. An identifier of the API and an identifier of the AEF that provides the API are sent to the topology hiding entry point so that the topology hiding entry point hides the AEF that provides the API.

Abstract: Embodiments of this application disclose a dynamic information obtaining method and a related device thereof, and may be applied to the field of artificial intelligence. The method includes: A first enabler server obtains information about an enabler client in a target area of a target client; and the first enabler server sends a first message to the enabler client, where the first message is used for the enabler client reporting first information. The first information includes local dynamic information of the enabler client, and the first information is used for obtaining dynamic information associated with the target client.

Abstract: An application programming interface (API) method includes determining, by a first common API core function (CCF) entity, a to-be-shared API, and sharing, by the first CCF entity, information about the to-be-shared API with a target CCF entity of the to-be-shared API.

Abstract: Embodiments of this application relate to the field of communications technologies, and disclose an application programming interface (API) topology hiding method, a device, and a system. A common API framework core function (CCF) receives, from a topology hiding request entity, a request message that includes information about an API and that is used to request to hide an API exposing function (AEF) that provides the API. Based on the request message, a topology hiding entry point used by an API invoker to invoke the API is determined. An identifier of the API and an identifier of the AEF that provides the API are sent to the topology hiding entry point so that the topology hiding entry point hides the AEF that provides the API.

Abstract: Embodiments of this application relate to the field of communications technologies, and disclose an application programming interface (API) topology hiding method, a device, and a system, to hide, from an API invoker, an API exposing function (AEF) that provides an API. The method includes: receiving, by a common API framework core function (CCF) from a topology hiding request entity, a request message that includes information about an API and that is used to request to hide an AEF that provides the API; determining, based on the request message, a topology hiding entry point used by an API invoker to invoke the API; and sending, to the topology hiding entry point, an identifier of the API and an identifier of the AEF that provides the API, so that the topology hiding entry point hides the AEF that provides the API.

Abstract: A method, an apparatus and a system for floor control on multiple mission critical push to talk MCPTT systems are disclosed. In an embodiment the method includes receiving, by a first floor control server, a first message from N network element devices, wherein the first message is used to request a floor from the first floor control server, and wherein the N network element devices belong to N MCPTT systems respectively, determining according to the first message, that an MCPTT user in an MCPTT group belonging to a first MCPTT system occupies the floor, wherein the first MCPTT system is an MCPTT system to which a first network element device belongs, and sending a second message to the first network element device, wherein the second message is used to indicate that the MCPTT user in the MCPTT group belonging to the first MCPTT system occupies the floor.

Abstract: An application programming interface (API) method includes determining, by a first common API core function (CCF) entity, a to-be-shared API, and sharing, by the first CCF entity, information about the to-be-shared API with a target CCF entity of the to-be-shared API.

Abstract: A method for applying for media transmission permission, and a method and an apparatus for canceling media transmission permission are provided. The method for applying for media transmission permission includes: determining, by a first terminal, that a second terminal needs to transmit media data; and sending, by the first terminal, media transmission permission request indication information to a mission critical service (MCS) server, where the media transmission permission request indication information is used to instruct the MCS server to grant media transmission permission to the second terminal.

Abstract: Embodiments of this application relate to the field of communications technologies, and disclose an application programming interface (API) topology hiding method, a device, and a system, to hide, from an API invoker, an API exposing function (AEF) that provides an API. The method includes: receiving, by a common API framework core function (CCF) from a topology hiding request entity, a request message that includes information about an API and that is used to request to hide an AEF that provides the API; determining, based on the request message, a topology hiding entry point used by an API invoker to invoke the API; and sending, to the topology hiding entry point, an identifier of the API and an identifier of the AEF that provides the API, so that the topology hiding entry point hides the AEF that provides the API.

Abstract: A method for applying for media transmission permission, and a method and an apparatus for canceling media transmission permission are provided. The method for applying for media transmission permission includes: determining, by a first terminal, that a second terminal needs to transmit media data; and sending, by the first terminal, media transmission permission request indication information to a mission critical service (MCS) server, where the media transmission permission request indication information is used to instruct the MCS server to grant media transmission permission to the second terminal.

Abstract: A method for applying for media transmission permission, and a method and an apparatus for canceling media transmission permission are provided. The method for applying for media transmission permission includes: determining, by a first terminal, that a second terminal needs to transmit media data; and sending, by the first terminal, media transmission permission request indication information to a mission critical service (MCS) server, where the media transmission permission request indication information is used to instruct the MCS server to grant media transmission permission to the second terminal.

Abstract: A method for applying for media transmission permission, and a method and an apparatus for canceling media transmission permission are provided. The method for applying for media transmission permission includes: determining, by a first terminal, that a second terminal needs to transmit media data; and sending, by the first terminal, media transmission permission request indication information to a mission critical service (MCS) server, where the media transmission permission request indication information is used to instruct the MCS server to grant media transmission permission to the second terminal.

Abstract: A method, an apparatus and a system for floor control on multiple mission critical push to talk MCPTT systems are disclosed. In an embodiment the method includes receiving, by a first floor control server, a first message from N network element devices, wherein the first message is used to request a floor from the first floor control server, and wherein the N network element devices belong to N MCPTT systems respectively, determining according to the first message, that an MCPTT user in an MCPTT group belonging to a first MCPTT system occupies the floor, wherein the first MCPTT system is an MCPTT system to which a first network element device belongs, and sending a second message to the first network element device, wherein the second message is used to indicate that the MCPTT user in the MCPTT group belonging to the first MCPT system occupies the floor.