Abstract: A method and device for data transmission are provided. The method includes: a TWAG receives a fixed network gateway identity transmitted by a fixed network gateway; and, the TWAG transmits to the fixed network gateway, on the basis of the fixed network gateway identity, a downlink data packet that P-GW transmitted to the TWAG. The present invention implements correct routing and forwarding of a downlink data service, thus allowing for the achievement of the effect that smooth deployment of a terminal UE service is ensured.

Abstract: It is provided a method and system for multi-access authentication in Next Generation Network (NGN). A network side authentication center (NSAC) generates an authentication vector after receiving, from a user terminal (UT), UT information including subscription information and multi-access information of the UT; after receiving an authentication request including authentication information from the NSAC, the UT performs authentication on the network side, generates keying material and network side authentication information (NSAI) upon successful authentication, and sends the NSAI to the NSAC, which performs authentication on the NSAI using the authentication vector, generates keying material according to the multi-access information of the UT upon successful authentication, and informs an access forwarding functional module (AFFM) of the keying material; the AFFM encrypts and decrypts access service information of the UT according to the keying material.

Abstract: Disclosed are a method, device and system for session binding. The method includes: a PCRF or BPCF receives a first session from a fixed network, wherein the first session carries an IP address and a port number set; the PCRF or BPCF receives a second session from an AF or a Traffic Detection Function (TDF), wherein the second session carries an IP address and port number information; and the PCRF or BPCF binds the first session to the second session according to the IP addresses and the port number information. The disclosure solves the problem of inaccurate session binding in the scenario where a mobile terminal directly accesses mobile network services via a fixed network.

Abstract: Techniques for facilitating operation of a communication device having a first internet protocol (IP) address in a first network and a second IP address in a second network include detecting a presence of a network address translation (NAT) table; implementing, when the NAT table is present, a message exchange protocol to obtain a mapping between the first IP address and the second IP address; and reporting, in a communication message, the mapping between the first IP address and the second IP address.

Abstract: The present disclosure discloses a method and system for updating tunnel information. The method comprises: a target HeNB to which a user equipment (UE) is to be handed over notifies a Mobility Management Entity (MME) of the tunnel information through a handover acknowledgement message, a handover notification message or a path converting request message; and the MME notifies a fixed network of the received tunnel information through an Evolved Packet Core (EPC) gateway and a Policy and Charging Rules Function entity (PCRF). With the present disclosure, policy interworking between a mobile network and the fixed network can be implemented, and the Quality of Service of the HeNB can be ensured.

Abstract: The present invention discloses a multiple access method and a multiple access system of terminal in Evolved Packet System (EPS). The multiple access method of terminal in EPS comprises the following steps that: a Packet Data Network Gateway (P-GW) sends a first multiple access capability indication to a terminal, wherein the first multiple access capability indication denotes that the P-GW supports a multiple access; the terminal performs the multiple access according to the multiple access capability indication of the P-GW. The present invention avoids the waste of network resource and improves the experience of users.

Abstract: A policy control method and system are disclosed. The method includes: a 3rd Generation Partnership Project (3GPP) network entity sending outer IP packet header information to a Broadband Forum (BBF) access network entity; and the BBF access network entity scheduling a data packet matching the outer IP packet header information according to a Differentiated Services Code Point (DSCP) of the data packet. With the above technical scheme, service data flows without going through admission control will not occupy resources of other service data flows going through the admission control.

Abstract: Systems, devices and techniques for policy and charging rule function that is responsive to the access network used by a user equipment include receiving policy enforcement information for operation of a user equipment (UE) from a policy and charging rule function-plus (PCRF+) in the FMC system; the policy enforcement information being based on an access technology used by the UE and enforcing a service policy based on the received policy enforcement information.

Abstract: The disclosure provides a method for multi-access authentication in Next Generation Network (NGN), which includes: a network side authentication center generates an authentication vector after receiving user terminal information from a user terminal, wherein the user terminal information includes subscription information and multi-access information of the user terminal; the user terminal performs authentication on the network side after receiving an authentication request from the network side authentication center, and generates keying material and network side authentication information upon successful authentication, and sends the network side authentication information to the network side authentication center, wherein the authentication request includes authentication information; the network side authentication center performs authentication on the network side authentication information using the authentication vector, generates keying material according to the multi-access information of the user ter

Abstract: The present invention discloses a multiple access method and a multiple access system of terminal in Evolved Packet System (EPS). The multiple access method of terminal in EPS comprises the following steps that: a Packet Data Network Gateway (P-GW) sends a first multiple access capability indication to a terminal, wherein the first multiple access capability indication denotes that the P-GW supports a multiple access; the terminal performs the multiple access according to the multiple access capability indication of the P-GW. The present invention avoids the waste of network resource and improves the experience of users.