270 results about "Packet data gateway" patented technology

The invention relates to methods for (re)attaching a UE to a 3GPP access network and for storing bearer context information of a UE upon handover from a 3GPP access network to a non-3GPP access network. Furthermore, the invention relates to 3GPP network nodes, such as mobility management entity, serving gateway and packed data gateway, and a UE that are specially adapted to perform these methods. In order to decrease of the delay time during (re)attachment of a UE to a 3GPP access network, the invention proposes to maintain context information on data bearer(s) of a UE within the 3GPP access network and the UE, while the UE is not attached to the 3GPP access network, so that data bearer context information for this UE is available and can be used for the (re)activation of data bearer(s) once the UE is attaching to the 3GPP access network again.

Systems, devices, and configurations to implement trusted connections within wireless networks and associated devices and systems are generally disclosed herein. In some examples, a wireless local area network (WLAN) may be attached to a 3GPP evolved packet core (EPC) as a trusted access network, without use of an evolved packet data gateway (ePDG) and overhead from related tunneling and encryption. Information to create the trusted attachment between a mobile device and a WLAN may be exchanged using Access Network Query Protocol (ANQP) extensions defined by IEEE standard 802.11u-2011, or using other protocols or standards such as DHCP or EAP. A trusted WLAN container with defined data structure fields may be transferred in the ANQP elements to exchange information used in the establishment and operation of the trusted attachment.

The present invention provides a method for routing data from a service request in a communication system. A context is transferred from a packet data gateway, such as a Serving GPRS (GSM Packet Radio Service) Support Node (SGSN), to a Base Station System (BSS) coupled thereto. The context specifies where data for this user should be sent. The service request is received at the BSS and includes data. The data from the service request is routed to an appropriate location, based at least in part upon the context.

The invention relates to a method for configuring connection parameters of a connection between a mobile terminal and a target wireless access network in a handover between heterogeneous wireless access networks, wherein the mobile terminal is handed over from an originating wireless access network to a target wireless access network. Moreover, the invention provides a packet data gateway and an authentication server which are adapted to participate and execute a part of the steps of the configuration method. To provide a solution for establishing connection to a wireless access network, as for example a WLAN, as fast as possible, in particular in a handover, the invention proposed to pre-configure a tunnel to be established between a packet data gateway and the mobile terminal for packet data service provision via the target wireless access network based on context information already maintained for the packet data service.

The invention relates to a method for configuring a context for a connection delivering a packet data service to a mobile terminal via a target wireless access network. The mobile terminal is initially connected to an originating wireless access network and the packet data service may be provided to the mobile terminal via the originating wireless network. Moreover, the invention provides an authentication server, a packet data gateway and a packet data service support node which participate in the context configuration method. To provide a method that allows establishing connection for packet service delivery to a mobile terminal from a wireless access network, as for example a UMTS, as fast as possible the invention suggests to preconfigure service provision of the packet data service via the target wireless access network by establishing a context prior to the mobile terminal connecting to the target wireless access network.

Disclosed herein is a method for Wireless Local Area Network (WLAN) User Equipment (UE) selection of a Packet Data Gateway (PDG). When the WLAN UE fails to access, the PDG returns a message containing the failure cause value to the WLAN UE that has sent the request such that the WLAN UE could perform different operations according to the specific failure cause value in the message to select a PDG. For example, the WLAN UE may request DNS again to obtain the IP address of the PDG in a home network by parsing in connection with a requested service, or the WLAN UE may first subscribe to the service before re-performing the operation of selecting a PDG, or the WLAN UE may re-select a PDG with another parsed IP address and send a connection request thereto. As a result, the process of WLAN UE asking DNS to re-direct to the home network to select PDG is left out when possible, unnecessary signaling is avoided, and the network resources are saved.

The embodiment of the invention provides a paging processing method and device under a scene of home base station access, wherein the method comprises the following steps: when user equipment (UE) is in an idle state, the context information of the UE is stored by an access network element; the access network element sends a downlink packet to the UE in an idle state, and the target address of the downlink packet is changed into a public network address of the UE based on the context information of the UE; and the access network element forwards the downlink packet to a service gateway through packet data gateway (P-GW) and indicates the service gateway to initiate paging to the UE, thus establishing a connection. By storing the context information of the UE in an idle state in the access network element, the target address of the downlink packet sent to the UE in an idle state can be changed into the public address of the UE, thus the downlink packet is routed to the service gateway, and paging is triggered by the service gateway to the UE so as to enable the downlink packet to be sent to the UE, thus ensuring normal operation of service when the UE is in an idle state.

A terminal (101) includes interfaces for communication with a mobile network (102) and a wireless LAN (103). A first IMS server (107) performs IMS call control processing relating to terminals located in the mobile network (102) and a second IMS server (111) relays a signal relating to IMS call control processing concerning terminals located in the wireless LAN (103). These IMS servers search for a mobile network packet gateway (106), a packet data gateway (110), and a gateway to be controlled by a route change request for requesting change of a packet transmission path and relay the route change request. The route change request provided from the terminal (101) is relayed by the IMS servers to provide the change request to all networks specified. The packet transmission path is changed by the gateway in accordance with the request. Thus, the terminal having the interfaces for both of the mobile communication network and the wireless LAN can select a network to use for each communication port.

A mobile communication device including a wireless transceiver and a wireless transceiver is provided. The wireless transceiver performs wireless transmission and reception to and from a first service network and a second service network. The controller uses a first subscriber identity card to establish one or more first radio bearers with the first service network via the wireless transceiver, uses a second subscriber identity card to set up an Internet Protocol Security (IPsec) tunnel with an evolved Packet Data Gateway (ePDG) of the second service network via the first radio bearers, and uses the second subscriber identity card to register an IP Multimedia Subsystem (IMS) service with the second service network via the IPsec tunnel.

Method and system for facilitating tunnel management in the 3G-WLAN interworking systems providing dynamic configuration of maximum number of IP Security Protocol (IPsec) tunnels allowed per Internet Key Exchange (IKE) Security Association (SA) at the Packet Data Gateway (PDG) during the initial tunnel establishment procedure. Authentication Authorization and Accounting (AAA) server is notified of the new IPsec tunnel established between the user equipment (UE) and the PDG.

The invention discloses an access network element, an access network system and an access method and aims to solve the problems of complicated system architecture of a long-term evolved (LTE) home NodeB, high overhead and long delay time. The access network element has integrated functions of a serving gateway and a packet data gateway or integrated functions of the serving gateway, the packet data gateway and a mobility management entity, and an interactive interface between the integrated access network element and a core network, an interactive interface between the access network elements and an interactive flow are provided. By adoption of the technical scheme provided by the invention, the system architecture of an LTE home access network can be simplified, overhead is reduced, and delay time is shortened.

The invention, which relates to the communication technology, provides a flow control method and a system thereof for a wireless network. The flow control method comprises the following steps that: a base station monitors a length of a shared data buffer queue that is maintained by the base station, wherein the shared data buffer queue comprises all downstream user flows that are from a packet core network and belong to the base station; according to a monitored congestion state of the shared data buffer queue, the base station reports indication information on the congestion state to a base station controller; the base station controller transmits a congestion state indication through a signaling protocol of a packet data gateway, wherein the signaling protocol is established between the base station controller and the core network; and the packet data gateway sends a flow control request to a strategy server; the strategy server determines flow control strategies for data flows of different users under the base station; and the packet data gateway carried out flow controls on data flows of the different users according to the flow control strategies. According to the invention, on the basis of monitoring on a congestion state of a shared data buffer queue by a base station, a strategy server and a packet data gateway can carry out differential flow controls on data flows of different users.

The present invention provides wireless transmission method, system and device. The present invention provides wireless accessing gateway and wireless accessing node, in wireless grouped data network, mobile terminal only through wireless accessing node capable of directly connected with grouped data network, to make grouped data transmission, through wireless accessing gateway making wireless access point administration and data transmission control. Wireless grouped data transfer system can combine with existing wireless communication network, utilizing wireless accessing node directly making communication with grouped data network in transmitting grouped data, in transmitting phonetic etc circuit domain business, through circuit domain service in existing wireless communication network to make transmission; at the same time wireless accessing gateway through grouped data gateway in current network connected with service provider other network, raising said wireless transmission system applicability. The present invention simplifies grouped data network structure, reducing network processing time delay and raising retransmission performance.

The invention relates to a mobile communication network and a switching method of a terminal between a wireless local area network and a wireless cellular access network, which solve the problem of switching of the terminal between the conventional wireless local area network and wireless cellular access network. The mobile communication network comprises a core network, a wireless local area network, a connection core network, and a wireless local area network access gateway and a wireless cellular access network of the wireless local area network; the core network comprises a grouped data gateway; and the terminal in the wireless local area network is accessed to the grouped data gateway of the core network through the wireless local area network access gateway.

The invention provides a method for accessing a mobile communication system. The method includes steps of enabling 3GPP UE (3rd generation partnership project user equipment) connected with non-3GPP user equipment to initiate an attach request containing a specified APN (access point name) value; establishing a carrying link between the 3GPP UE and a PGW (packet data gateway) after authentication is successfully carried out and transmitting uplink and downlink data of Ethernet data packets of the non-3GPP user equipment via the carrying link. The method has the advantages that relevant 3GPP protocols are extended, so that business for enabling non-3GPP users to access the mobile communication system via a 3GPP network can be supported, a network arrangement scheme of operators can be flexible and convenient, user groups of the operators can be expanded, the non-3GPP users and LTE (long term evolution) users can be managed by the operators in a unified manner, and billing and refined business service can be provided for the non-3GPP users and the LTE users by the operators.

Methods, systems, and devices for wireless communications are described that supports connectivity to a core network via an access network. A user equipment (UE) may establish connectivity with an access network and perform a discovery procedure to identify and select a packet data gateway that provides connectivity to a core network via a core network node. The UE may perform an authentication procedure with the core network node via the packet data gateway to be authenticated with the core network for establishing connectivity with the packet data gateway. The UE may receive a set of control plane addressing information via the packet data gateway corresponding to a secure tunnel established between the UE and the packet data gateway. The UE may perform an attach procedure via the secure tunnel with the core network node without re-authenticating the UE.

A telecommunications system is arranged to provide a mobile communications session to a mobile node using an internet protocol. The telecommunications system comprises a home packet data network which includes a home agent of the mobile node and a visited packet data network. One of the home packet data network or the visited packet data network includes a packet data gateway for controlling the communication of the internet packets to and from the home packet data network from and to the visited packet data network. The mobile node is arranged to communicate a correspondent node binding update internet packet to the correspondent node via the packet date gateway, when the mobile node changes affiliation from the home packet data network to the visited packet data network. The correspondent node binding update internet packet provides a care of address of the mobile node within the visited packet data network and a home address of the mobile node. The packet data network is arranged to store the home address of the mobile node in association with the care of address of the mobile node, to adapt the correspondent node binding update internet packet by replacing the care of address in the received correspondent binding update packet with the address of the packet data gateway, and to communicate the adapted correspondent binding update packet to the correspondent node. The correspondent node therefore receives a correspondent binding update with the packet data gateway as the care of address. Thus, when the correspondent node communicates with the mobile node using the care of address of the packet data gateway, the packet data gateway can adapt the received internet packets, replacing the packet data gateway's address as the destination address with the care of address of the mobile node. Therefore, although a route optimisation process has taken place the internet packets are still routed via the packet data gateway.

The present invention relates to an arrangement, in a communications system supporting communication of packet data, for selection of a packet data gateway node or function for a mobile user station (MS; UE). It comprises a packet data gateway functional selection means, said gateway functional selection means is adapted to use a number of information parameters contained in a context set up message to select packet data gateway, and it is adapted to forward the context set up message to the selected packet data gateway node or packet data gateway function.

The invention provides a family evolution base station system and an access method of a wireless device. The method comprises the following steps: accessing user equipment to a family evolution base station through a wireless link, accessing the family evolution base station to a family evolution base station gateway through a wireless transmission link, and judging data from the user equipment; sending the data to a mobile management entity through a transmission protocol conversion unit and a safety gateway in the family evolution base station gateway to access a control surface to the mobile management entity under the condition of judging the data to be the data of the control surface; and sending the data to a grouped data gateway through the transmission protocol conversion unit, thesafety gateway and a service gateway in the family evolution base station gateway under the condition of judging the data to be the data of a user surface to access the user surface to the grouped data gateway. By the invention, the structure of the family evolution base station is consistent with the flat structure of an LTE, and the load of a mobile core network is lowered.

Disclosed herein is a wireless local area network access gateway (WAG) including a routing enforcement module for enforcing the control of the transmission routing, and a charging module for collecting charging information. The data packets sent via the WAG are outputted to the service authentication and authorization unit or packet data gateway (PDG) of WLAN or the WLAN UE after the forced route processing and collection of charging information. Said WAG further includes a message filtering module for acquiring and storing rule data as well as discriminating, filtering and screening the data packets currently passing the WAG. The message filtering module connects to the routing enforcement module and the charging module. Also disclosed herein is a method for ensuring network security by utilizing the WAG. With the disclosed WAG and method, data packets can be discriminated, filtered, and screened so as to prevent as much as possible illegal messages from interfering and threatening the network operation, prevent the transmission of illegal messages, improve the security of the network, and reduce the load of the network.

The invention discloses a method for reserving address information of a packet data network gateway (PDN GW), comprising the steps: a user-signed server reserves the address information of the dynamic PDN GW used by a user terminal clear of attachment according to a request message for clearing the user terminal sent by a clear operation initiating end; and a clearing mark is set and an acknowledgment message for clearing the user terminal is returned to the clear operation initiating end. The invention also discloses a system for reserving the address information of the PDN GW simultaneously, and the system comprises the clear operation initiating end and the user-signed server. The method and the system for reserving the address information of the PDN GW do not delete the address information of the PDN GW used by the UE clear of attachment in a 3GPP access system or do not mark the address information of the PDN GW to be invalid, therefore, the UE can be continued to be accessed to a network according to the reserved address information of the PDN GW when being switched in a non-3GPP access system or switched from the non-3GPP access system back to the 3GPP access system, thus ensuring the continuity of businesses of the UE when being used among different networks. Simultaneously, the invention has simple realization.