摘要:
The present invention relates to the field of communications technologies, and in particular, to a network selection method and an apparatus, in order to solve a technical problem in the prior art that when a core network device is selected for a user terminal, an access failure of the user terminal is caused due to incorrect selection. In embodiments of the present invention, after receiving an access request message sent by a UE, a first core network device may send, to the UE, information about a dedicated second core network device corresponding to the UE, thereby ensuring that the UE can be attached to the dedicated second core network device according to the information about the dedicated second core network device, increasing selection accuracy when a core network device is selected for the user terminal, and avoiding occurrence of an access failure of the user terminal to the greatest extent.
摘要:
Embodiments of the present invention provide a service continuity ensuring method, a control plane gateway, and a mobility management network element. The method includes: receiving, by a C-GW, current location information of UE sent by a mobility management network element; selecting, by the C-GW, at least one forwarding D-GW for the UE according to the current location information of the UE; establishing, by the C-GW for the UE, a data forwarding tunnel between a source D-GW of the UE and the forwarding D-GW, and a data forwarding tunnel between the forwarding D-GW and a target base station of the UE, where the data forwarding tunnels are used to transmit uplink user plane data and/or downlink user plane data of the UE in a moving process of the UE.
摘要:
Embodiments of the present invention disclose a user equipment paging method, including: determining, by a mobility management entity (MME) before paging user equipment in an idle state, a base station last accessed by the user equipment (S201); determining, by the MME, that the base station last accessed by the user equipment is in a non-overload state (S202); and sending, by the MME, a paging message including an identifier of the user equipment to the base station last accessed by the user equipment (S203). Correspondingly, the embodiments of the present invention further disclose an MME, which can improve user equipment paging efficiency.
摘要:
A resource release control method, a communication system, and a device are adapted to delete a bearer context on an original-side heterogeneous-system management network element (NE) even if a target-side management NE does not support interaction with a serving gateway (S-GW) and does not support an idle mode signaling reduction (ISR) mechanism. The resource release control method includes: acquiring version information of a target-side management NE, when a user equipment (UE) activating an ISR mechanism is handed over from an original-side network to a target-side network; and deleting a bearer of an original-side heterogeneous-system management NE, if the version information indicates that the target-side management NE does not interact with an S-GW and does not support the ISR mechanism. Meanwhile, a communication system and a relevant device are also provided.
摘要:
Embodiments of the present invention relate to the field of communications, and provide a data transmission method, apparatus and system. The method includes: detecting whether data transmitted in a received GTP-U data packet is data of a predetermined type; if a result of the detection is that data transmitted in the GTP-U data packet is data of a predetermined type, decapsulating the GTP-U data packet, to obtain the data of the predetermined type and a destination address of the data of the predetermined type; and sending the data of the predetermined type and the destination address to a message gateway, so that the message gateway forwards the data of the predetermined type according to the destination address. A gateway includes: a detection module, a decapsulation module, and a sending module. A message gateway includes: a receiving module and a forwarding module. The data transmission system includes: a gateway and a message gateway. The present invention solves a problem that adding an IP header in front of small data decreases a payload of an IP data packet, which decreases data transmission efficiency, and achieves an effect of improving data transmission efficiency.
摘要:
Embodiments of the present invention disclose a method and an apparatus for sharing a core network, where the method includes: first, determining, by a mobility management network element, that a user equipment does not support network sharing; and then, sending, by the mobility management network element, a location update request message to a mobile switching center or visitor location register MSC/VLR, where the location update request message includes indication information that the user equipment does not support network sharing, or the location update request message includes a location area identity LAI including a common public land mobile network identifier common PLMN ID, or the location update request message includes an LAI including a common PLMN ID and includes a circuit switched domain public land mobile network identifier CS domain PLMN ID. The present invention is applicable to the field of communications systems.
摘要:
Embodiments of the present invention relate to a method, an apparatus, and a system for accessing a multi-operator core network. The method includes: acquiring, by a second SGSN, an LLC parameter of a first SGSN from an access network device, where the LLC parameter of the first SGSN is sent by the first SGSN to the access network device; and interacting, by the second SGSN, with an MS by using the LLC parameter of the first SGSN.