摘要:
A wireless local area network access gateway (WAG) includes a routing enforcement module and a charging module. 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. The WAG further includes a message filtering module for acquiring and storing packet filtering rules as well as discriminating, filtering and screening the data packets currently passing the WAG. Also disclosed 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.
摘要:
The present invention discloses a method for implementing roaming charging, including: a proxy CRF is configured in the PLMN; a terminal uses bearer resources or packet data services in the currently visited PLMN to provide information for selecting charging rules for the home CRF through the proxy CRF in the PLMN, the home CRF selects the charging rules according to the information and provides the charging rules for the TPF serving the current terminal. The present invention also provides a system for implementing roaming charging, which includes a TPF, a home CRF in the terminal's home PLMN and a proxy CRF in the PLMN other than the terminal's home PLMN. When the terminal is roaming and utilizing the bearer resources or packet data services in the currently visited PLMN, the problem of addressing among the functions when implementing the data flow based charging procedure based on FBC mechanism is solved.
摘要:
The present invention discloses a method for releasing a service tunnel in WLAN. This method comprises: an originating end point that desires to release a service tunnel in a WLAN sending a release tunnel request to a corresponding end point of the service tunnel; the corresponding end point returning a release acknowledgement to the originating end point, and releasing resources of the service tunnel, a Packet Data Gateway (PDG) sends a tunnel disconnection report to a service authentication and authorization unit, and upon receiving the tunnel disconnection report, the service authentication and authorization unit updates self-stored information related to the released service tunnel. The method in accordance with the present invention makes it possible to implement the release of a designated service tunnel and release or update the related resources and information in time.
摘要:
This invention relates to fuel cells, and in one embodiment, to fuel cells that are especially well suited for downhole use in oil and gas wells, and for subsea use in connection with offshore wells.
摘要:
The present invention discloses a method for a user terminal in a Wireless Local Area Network (WLAN) quickly accessing its home network. Pre-store in each user terminal, respectively, the identifications of all the WLANs with direct connections to the home network of the corresponding user terminal. For a user terminal that is in an area covered by more than one WLAN, compare the identification of each of the detected WLANs with the WLAN identifications stored in the current user terminal. A successful matching between the identification of a detected WLAN and a pre-stored WLAN identification then means that the home network of the current user terminal is connected with the corresponding WLAN access network and can be accessed via this WLAN. If a plurality of detected WLAN identifications match the stored identifications, select in accordance with a pre-defined selecting rule one of the corresponding WLANs and get accessed via the selected WLAN. This method enables a user terminal covered by more than one WLAN to find quickly a WLAN access network directly connected with its home network and to access the home network via this WLAN.
摘要:
The present invention discloses a method for resolving and accessing a selected service in a Wireless Local Area Network (WLAN), wherein a service resolving unit is preconfigured for initial access, the method comprising: a WLAN user terminal sending a service establishing request to the service resolving unit; after receiving the service establishing request, the service resolving unit sending a service authentication and authorization request containing the user's subscription information to the service authentication authorization unit, which performs authentication and authorization to the requesting WLAN user terminal; then judging whether the authentication and authorization is successful, if yes, the service authentication authorization unit returning the address of the authorized destination device to the requesting WLAN user terminal so as to establish a service connection between the WLAN user terminal and the destination device; otherwise, the service authentication authorization unit returning the failure information of the service establishing request. With this method, the analytical access processing of the selected service can be simplified while the security and reliability of the network greatly enhanced.
摘要:
The present invention discloses a method of user access authorization in wireless local area networks. The method comprises: when a Wireless Local Area Network (WLAN) user terminal is accessing a WLAN operational network, the WLAN operational network, while authenticating this WLAN user terminal, judging whether to allow this WLAN user terminal to access according to authorization conditions having an impact on the access of this WLAN user terminal, if yes, the WLAN operational network will determine the access rules of this WLAN user terminal according to the said authorization conditions; otherwise, the WLAN operational network will notify the WLAN user terminal about the failure. By adopting the method of the present invention, different users can be controlled to access the network according to different authorization conditions, and be restricted by different access rules after getting accessed. As a result, the access control capability of a wireless local area network is enhanced and the working efficiency of the network is improved.
摘要:
The invention discloses a WLAN service system for charging based on the user data flow, and the system includes: a WLAN user equipment, a WLAN access network, a Packet Data Gateway and a charging service unit that generates charging information and is connected with the Packet Data Gateway; the invention also discloses a charging method based on the user data flow, and in this method a Packet Data Gateway takes statistic for the current user data flow to obtain original data flow information that is then transmitted to the charging service unit; having received the original charging related information, the charging service unit generates charging information that is then transferred to a charging system. With this system and method, packet data passing through the Packet Data Gateway can be charged based on the data flow.
摘要:
A method for implementing presence information interaction of WLAN (Wireless Local Area Network) subscriber and the system and terminal thereof, wherein, the method comprises setting one or more than one presence information monitoring unit, detecting the presence information by the presence information monitoring unit, and transmitting this presence information to a PRESENCE service system. The system thereof comprises a presence information monitoring unit, a WLAN network and PRESENCE service system, wherein input of the presence information monitoring unit is connected with WLAN network and the output is connected with PRESENCE service system. The terminal thereof also comprises a presence information monitoring unit, which is connected with PRESENCE service system through WLAN.