In one embodiment, a method includes receiving a trigger to dynamically modify a serving site of a communication endpoint, wherein the communication endpoint is registered to receive digital communication service from a first serving site. The method further includes determining a stored serving-site selection policy applicable to the communication endpoint. The method also includes selecting a second serving site for the communication endpoint based, at least part, on a stored serving-site selection policy. Also, the method includes determining endpoint-configuration requirements of the second serving site. Furthermore, the method includes dynamically generating endpoint configurations that satisfy the endpoint-configuration requirements of the second serving site. Moreover, the method includes writing the generated endpoint configurations to the communication endpoint. Additionally, the method includes causing the communication endpoint to register to receive digital communication service from the second serving site in place of the first serving site.

In one embodiment, a method includes receiving a trigger to dynamically modify a serving site of a communication endpoint, wherein the communication endpoint is registered to receive digital communication service from a first serving site. The method further includes determining a stored serving-site selection policy applicable to the communication endpoint. The method also includes selecting a second serving site for the communication endpoint based, at least part, on a stored serving-site selection policy. Also, the method includes determining endpoint-configuration requirements of the second serving site. Furthermore, the method includes dynamically generating endpoint configurations that satisfy the endpoint-configuration requirements of the second serving site. Moreover, the method includes writing the generated endpoint configurations to the communication endpoint. Additionally, the method includes causing the communication endpoint to register to receive digital communication service from the second serving site in place of the first serving site.

This application discloses a load relocation method, apparatus, and a system. The method includes determining, by a communications network entity, a target access management entity for load relocation; and sending, to an access network entity, an identifier of an original access management entity and an identifier of the target access management entity or an address of the target access management entity with respect to the access network entity. The access network entity sends a message from a user equipment (UE) to the target access management entity based on the identifier of the original access management entity carried in the message from the UE. In the foregoing solution, signaling overheads in a load relocation process are reduced and load relocation efficiency is improved.

This application discloses a load relocation method, apparatus, and a system. The method includes determining, by a communications network entity, a target access management entity for load relocation; and sending, to an access network entity, an identifier of an original access management entity and an identifier of the target access management entity or an address of the target access management entity with respect to the access network entity. The access network entity sends a message from a user equipment (UE) to the target access management entity based on the identifier of the original access management entity carried in the message from the UE. In the foregoing solution, signaling overheads in a load relocation process are reduced and load relocation efficiency is improved.

A solution for security negotiation during handover of a user equipment (UE) between different radio access technologies is provided. In the solution, the UE receives non-access stratum (NAS) security information and access stratum (AS) security information which are selected by the target system and then performs security negotiation with the target system according to the received NAS security information and AS security information. As such, the UE may obtain the key parameter information of the NAS and AS selected by a Long Term Evolution (LTE) system and perform security negotiation with the LTE system when the UE hands over from a different system, such as a Universal Terrestrial Radio Access Network (UTRAN), to the LTE system.

A solution for security negotiation during handover of a user equipment (UE) between different radio access technologies is provided. In the solution, the UE receives non-access stratum (NAS) security information and access stratum (AS) security information which are selected by the target system and then performs security negotiation with the target system according to the received NAS security information and AS security information. As such, the UE may obtain the key parameter information of the NAS and AS selected by a Long Term Evolution (LTE) system and perform security negotiation with the LTE system when the UE hands over from a different system, such as a Universal Terrestrial Radio Access Network (UTRAN), to the LTE system.

A method and apparatus for random access indication. The serving base station sends a random access indication signaling to a terminal. The random access indication signaling is configured to indicate, to the terminal, a target antenna panel and/or a target beam for sending a random access preamble. The terminal receives the random access indication signaling, and determines, according to the random access indication signaling, the target antenna panel and/or target beam for sending the random access preamble.

A method and apparatus for random access indication. The serving base station sends a random access indication signaling to a terminal. The random access indication signaling is configured to indicate, to the terminal, a target antenna panel and/or a target beam for sending a random access preamble. The terminal receives the random access indication signaling, and determines, according to the random access indication signaling, the target antenna panel and/or target beam for sending the random access preamble.

The present specification discloses a mobile communication system. More particularly, the present invention relates to a method and an apparatus for transmitting and receiving data using a plurality of carriers in a mobile communication system.

The present specification discloses a mobile communication system. More particularly, the present invention relates to a method and an apparatus for transmitting and receiving data using a plurality of carriers in a mobile communication system.