Abstract:
Embodiments of the present disclosure provide a session management method and an apparatus. The method includes: receiving, by a first session management SM entity, first session context information from a second SM entity; further, generating, by the first SM entity, second session context information based on the first session context information; and sending the second session context information to a terminal. As can be learned, a session in a tracking area update procedure of the terminal is updated in a scenario in which an MM entity and an SM entity are separated.
Abstract:
This application provides a handover method, including: determining, by a mobility management (MM) network element, to hand over a session management (SM) for a user equipment (UE), and selecting target SM network element; and triggering, by the mobility management network element, a process of setting up a channel by the target SM network element, where the channel includes a user plane data channel between a target user plane (UP) function entity and a target base station. Therefore, it is possible to hand over a network in which a control plane (CP) is separated from a UP and an MM and an SM in the CP are separated from each other.
Abstract:
A media downlink transmission control method and a related device, the method including receiving a remote media reception message sent by an authorized terminal, where the remote media reception message includes a target user identifier, determining a first target media stream based on the remote media reception message, and sending the first target media stream to a destination terminal corresponding to the target user identifier.
Abstract:
Embodiments of the present invention provide a method and a device for associating a user with a group. The method includes: receiving, by a first communications device, a first association request sent by a second communications device, where the first association request includes an identifier of an MCPTT user and identifiers of N MCPTT groups, and N is a positive integer; associating the MCPTT user with M MCPTT groups of the N MCPTT groups according to association subscription information of the MCPTT user; and sending a first association response to the second communications device, where the first association response is used to indicate that the MCPTT user is successfully associated with the M MCPTT groups of the N MCPTT groups, 1≤M≤N, and M is an integer. In this way, the MCPTT user is associated with the M MCPTT groups that the MCPTT user is interested in.
Abstract:
A method for updating a key in an active state is disclosed according to the embodiments of the present invention. The method includes steps of: initiating a key update by a user equipment in the active state or a network side when a pre-defined condition is met; updating the key by the network side and the user equipment, and negotiating an activation time of the new keys. An apparatus for updating a key in an active state is also disclosed according to the present invention. With the present invention, the user equipment in an active state and the network side may actively initiate the key update procedure in different cases, thereby solving the problem concerning the key update for a session in an active state.
Abstract:
A method, a system and a device for maintaining user service continuity are provided in an embodiment of the present invention. The method includes prohibiting a UE from accessing a forbidden network before handover is complete when the UE needs to perform network handover if the UE adopts a SIM access technology, thus avoiding service interruption of a SIM user due to access to an incorrect network. A system and a device for maintaining user service continuity are provided in an embodiment of the present invention.
Abstract:
A method for updating a key in an active state is disclosed according to the embodiments of the present invention. The method includes steps of: initiating a key update by a user equipment in the active state or a network side when a pre-defined condition is met; updating the key by the network side and the user equipment, and negotiating an activation time of the new keys. An apparatus for updating a key in an active state is also disclosed according to the present invention. With the present invention, the user equipment in an active state and the network side may actively initiate the key update procedure in different cases, thereby solving the problem concerning the key update for a session in an active state.
Abstract:
A multi-group call setup method and device are disclosed. The method includes determining, by a first MCPTT server, to set up a multi-group call involving N MCPTT groups, where N is an integer greater than or equal to 2, and sending, by the first MCPTT server, a call message to first UE, where the call message is used to add the first UE to the multi-group call, where a first MCPTT user is an associated user of the first UE, and where the first MCPTT user is an MCPTT user in the N MCPTT groups.
Abstract:
In the field of communications technologies, a method and an apparatus for accessing an OTT application are disclosed. By using the accessing method, a user can access multiple OTT applications by using one piece of first user information, and therefore, the user does not need to record first user information separately for each OTT application, so as to reduce complexity of accessing multiple OTT applications. Three types of methods and apparatuses for pushing a message by a server are further provided. By using the message pushing methods, a server can push a message to a terminal that registers but does not enable a related OTT application, and the server can also push a message to a terminal that does not register a corresponding OTT application, so that a terminal does not need to receive a message only if a related OTT application is enabled.
Abstract:
A method for updating a key in an active state is disclosed according to the embodiments of the present invention. The method includes steps of: initiating a key update by a user equipment in the active state or a network side when a pre-defined condition is met; updating the key by the network side and the user equipment, and negotiating an activation time of the new keys. An apparatus for updating a key in an active state is also disclosed according to the present invention. With the present invention, the user equipment in an active state and the network side may actively initiate the key update procedure in different cases, thereby solving the problem concerning the key update for a session in an active state.