Abstract: The present disclosure discloses a terminal discovery method, a terminal, a server, a base station, a management entity, and a system, and pertains to the field of wireless communications. The method includes acquiring a discovery resource, monitoring, according to the discovery resource, a second message sent by at least one second terminal, acquiring a service identity of the second terminal according to the second message, and acquiring description information of the second terminal from a server according to the service identity of the second terminal.

Abstract: The present disclosure discloses a terminal discovery method, a terminal, a server, a base station, a management entity, and a system, and pertains to the field of wireless communications. The method includes acquiring a discovery resource, monitoring, according to the discovery resource, a second message sent by at least one second terminal, acquiring a service identity of the second terminal according to the second message, and acquiring description information of the second terminal from a server according to the service identity of the second terminal.

Abstract: A network access processing method and user equipment, where the UE accesses a first VPLMN through a first access network, and accesses a second VPLMN through a second access network; the UE determines, according to either an ANDSF policy of the first VPLMN and an ANDSF policy of the second VPLMN, to initiate a data stream offloading operation; and then the UE performs the data stream offloading operation according to an ANDSF policy different from the ANDSF policy that is either the ANDSF policy of the first VPLMN or the ANDSF policy of the second VPLMN and is used to determine to initiate the data stream offloading operation.

Abstract: A terminal discovery method, a terminal, a server, a base station, a management entity, and a system are provided that pertain to the field of wireless communications. The method includes acquiring a discovery resource; monitoring, according to the discovery resource, a second message sent by at least one second terminal; acquiring a service identity of the second terminal according to the second message; and acquiring description information of the second terminal from a server according to the service identity of the second terminal.

Abstract: A data flow control method, and related device and communication system are provided. In the solutions of a data flow control, a first gateway receives a first message sent by a user equipment (UE) through a first access network, where the first message carries first Internet Protocol (IP) flow identification information; the first gateway sends a second message to a packet data network gateway, and receives a third message sent by the packet data network gateway, where the third message carries third IP flow identification information, and the third IP flow identification information is used to identify an IP flow that is allowed by a network to be transmitted by the UE through the first access network and/or an IP flow that is allowed by a network to be transmitted by the UE through a second access network; and the first gateway sends a fourth message to the UE.

Abstract: A method for network handover includes sending a first message that includes first information to a second network, where the first information is used to indicate that a user equipment needs to be handed over from a first network to the second network, so that a target gateway device allocates, to the user equipment according to at least the first information sent by the second network, a second Internet Protocol (IP) address that is the same as a first IP address and used when a second packet data network (PDN) connection is established by using the second network and the target gateway device, where the first IP address is an IP address used when the user equipment establishes a first PDN connection by using the first network and the target gateway device. Therefore, service continuity is ensured after a network handover.

Abstract: Embodiments of the present invention provide a method and a device for establishing a packet data network PDN connection. A method includes: receiving, by a trusted wireless local area network access network TWAN device, a trigger message from a user equipment; obtaining, by the TWAN device, an access point name APN from the user equipment; sending, by the TWAN device, a create session request message carrying the APN to a PDN gateway; receiving, by the TWAN device, a create session response message carrying an IP address from the PDN gateway; and sending, by the TWAN device, the IP address to the user equipment. In this way, an additional PDN connection or a non-default PDN connection is established for a user equipment to extend a network access range of the user equipment.

Abstract: Embodiments of the present invention provide a handover method performed by a source access network device, which includes: sending, a handover request or a WLAN offload request to a UE, so that the UE determines information about a target AP according to AP information corresponding to a target RAN and information about a currently accessed AP, and sends a WLAN offload binding request carrying the information about the target AP to a target access network device in the target RAN, so as to complete a RAN handover, where the handover request or the WLAN offload request includes the AP information corresponding to the target RAN, and the AP information corresponding to the target RAN is information about an AP in a WLAN that covers, together with the target RAN, a location of the UE; and receiving a handover response or a WLAN offload response returned by the UE.

Abstract: The present invention discloses a local network and a method for establishing a connection between a local gateway and a home base station therein. As regards a newly proposed home base station network architecture 1, a mobility management network element receives L-GW information sent by the home base station, selects an L-GW which is located in the same local network as the home base station at least according to the received L-GW information and then informs the L-GW, through an S-GW, of establishing a PDN connection and a tunnel bearer with the home base station, thereby providing a local IP access for a UE. As regards a newly proposed home base station network architecture 2, no direct interface is arranged between the L-GW and the S-GW, the mobility management network element directly selects a corresponding L-GW for establishing a PDN connection for the UE.

Abstract: A proximity service authorization method, an apparatus, and a system. A first network-side entity receives a first request message sent by first user equipment, where the first request message includes identity information of the first user equipment and an application identifier; and it is determined, at least according to acquired proximity service configuration data of the first user equipment, that the first user equipment can perform a proximity service corresponding to the application identifier. In this way, a first proximity service server authorizes and authenticates two user equipment that require a proximity service.

Abstract: Embodiments of the present invention provide a cell access processing method and apparatus and a communication system. In a cell access processing method, an access request message is sent by a terminal. The access request message includes identification information of the terminal. A CSG information request message is sent to a CSG subscription information server of a roaming network. The CSG information request message includes the identification information of the terminal. A CSG information response message is sent by the CSG subscription information server according to the CSG information request message. The CSG information response message includes CSG information corresponding to the identification information of the terminal. Access control is performed on the terminal according to the CSG information.

Abstract: A network access processing method and user equipment, where the UE accesses a first VPLMN through a first access network, and accesses a second VPLMN through a second access network; the UE determines, according to either an ANDSF policy of the first VPLMN and an ANDSF policy of the second VPLMN, to initiate a data stream offloading operation; and then the UE performs the data stream offloading operation according to an ANDSF policy different from the ANDSF policy that is either the ANDSF policy of the first VPLMN or the ANDSF policy of the second VPLMN and is used to determine to initiate the data stream offloading operation.

Abstract: Embodiments of the present invention provide a network selection method and user equipment. The method includes accessing a first wireless local area network WLAN access device by using a non-3rd Generation Mobile Communication 3GPP subscription; attaching to a 3GPP core network by using a 3GPP access network; determining whether a 3GPP subscription has a higher priority than the non-3GPP subscription; and accessing a WLAN by using the 3GPP subscription if the 3GPP subscription has a higher priority than the non-3GPP subscription.

Abstract: A terminal discovery method, a terminal, a server, a base station, a management entity, and a system are provided that pertain to the field of wireless communications. The method includes acquiring a discovery resource; monitoring, according to the discovery resource, a second message sent by at least one second terminal; acquiring a service identity of the second terminal according to the second message; and acquiring description information of the second terminal from a server according to the service identity of the second terminal.

Abstract: A method includes, when a UE enters a first core network device and performs a location update, determining, by the first core network device and at least according to that a timer does not time out, that context information of the UE is available, and sending, by the first core network device, to a second core network device, a location update request that includes information that the context information of the UE is available. The method further includes executing, by the first core network device, the location update at least according to saved context information of the UE. The timer is sent to the first core network device by the second core network device before the UE enters the first core network device and when the UE leaves the first core network device and performs the location update. Alternatively, the timer is saved in the first core network device in advance.

Abstract: A data flow control method, and related device and communication system are provided. In the solutions of a data flow control, a first gateway receives a first message sent by a user equipment (UE) through a first access network, where the first message carries first Internet Protocol (IP) flow identification information; the first gateway sends a second message to a packet data network gateway, and receives a third message sent by the packet data network gateway, where the third message carries third IP flow identification information, and the third IP flow identification information is used to identify an IP flow that is allowed by a network to be transmitted by the UE through the first access network and/or an IP flow that is allowed by a network to be transmitted by the UE through a second access network; and the first gateway sends a fourth message to the UE.

Abstract: A method for network handover includes sending a first message that includes first information to a second network, where the first information is used to indicate that a user equipment needs to be handed over from a first network to the second network, so that a target gateway device allocates, to the user equipment according to at least the first information sent by the second network, a second Internet Protocol (IP) address that is the same as a first IP address and used when a second packet data network (PDN) connection is established by using the second network and the target gateway device, where the first IP address is an IP address used when the user equipment establishes a first PDN connection by using the first network and the target gateway device. Therefore, service continuity is ensured after a network handover.

Abstract: Embodiments of the present invention provide a method and a device for establishing a packet data network PDN connection. A method includes: receiving, by a trusted wireless local area network access network TWAN device, a trigger message from a user equipment; obtaining, by the TWAN device, an access point name APN from the user equipment; sending, by the TWAN device, a create session request message carrying the APN to a PDN gateway; receiving, by the TWAN device, a create session response message carrying an IP address from the PDN gateway; and sending, by the TWAN device, the IP address to the user equipment. In this way, an additional PDN connection or a non-default PDN connection is established for a user equipment to extend a network access range of the user equipment.

Abstract: Embodiments of the present invention provide a handover method performed by a source access network device, which includes: sending, a handover request or a WLAN offload request to a UE, so that the UE determines information about a target AP according to AP information corresponding to a target RAN and information about a currently accessed AP, and sends a WLAN offload binding request carrying the information about the target AP to a target access network device in the target RAN, so as to complete a RAN handover, where the handover request or the WLAN offload request includes the AP information corresponding to the target RAN, and the AP information corresponding to the target RAN is information about an AP in a WLAN that covers, together with the target RAN, a location of the UE; and receiving a handover response or a WLAN offload response returned by the UE.

Abstract: The present invention discloses a method, an apparatus, and a system for performing a handover between home base stations. The method includes receiving a handover request for a handover to a target home base station, where the handover request is sent by a source home base station, determining whether the source home base station and the target home base station are in a same local network, if yes, sending the connection establishment related information of the target home base station to the L-GW to which the target home base station connects, and establishing a user-plane tunnel between the target home base station and the connected L-GW. Through the present invention, continuity of an LIPA IP data session can be implemented when a terminal is handed over between different home base stations in the same local network.