Patents by Inventor Weihua Hu

Weihua Hu has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 9974055
    Abstract: An embodiment of the present invention discloses a method and device for managing a forwarding plane tunnel resource, wherein the method includes: sending a forwarding plane tunnel resource request message to a forwarding plane device, for enabling the forwarding plane device to allocate a forwarding plane tunnel resource according to the forwarding plane tunnel resource request message; acquiring the allocated forwarding plane tunnel resource from the forwarding plane device; and sending the acquired forwarding plane tunnel resource to a target network element, to establish a packet data network connection with the target network element. By adopting the present invention, the load balancing of the forwarding plane device is achieved, the signaling interaction between the control plane device and the forwarding plane device is reduced as much as possible, and meanwhile, efficient failure processing can also be achieved in the case of a failure occurred in a device.
    Type: Grant
    Filed: December 30, 2014
    Date of Patent: May 15, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Shiyong Tan, Hui Ni, Hui Cai, Weihua Hu
  • Publication number: 20180098365
    Abstract: Described herein is a method for processing an invalidation of a downlink data tunnel between networks. The method includes the following steps: (1) a core network user plane anchor receives an error indication of data tunnel sent from an access network device, (2) after deciding that the user plane corresponding to the error indication uses a One Tunnel technology, the core network user plane anchor notifies a relevant core network control plane to request recovering the downlink data tunnel, (3) the core network control plane recovers the downlink data tunnel and notifies the core network user plane anchor to update information of the user plane. In addition, a communication system and a communication device are also provided. The method, system, and device can improve the speed of recovering data transmission after the downlink data tunnel becomes invalid.
    Type: Application
    Filed: December 5, 2017
    Publication date: April 5, 2018
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Weihua HU
  • Patent number: 9894003
    Abstract: The disclosure provides a method, apparatus and system. The method includes: matching a data packet with match field information of a flow entry, the flow entry including the match field information and operation field information; wherein the operation field information includes an operation type and first bit field indication information which includes a first offset and a first field length and is used for indicating the first bit field of the data packet, or the match field information includes second bit field indication information and a match value, the second bit field indication information includes a second offset and a second field length, and the second bit field indication information is used for indicating the second bit field of the data packet; performing, if the data packet is successfully matched with the match field information, an operation on the data packet according to the operation field information.
    Type: Grant
    Filed: February 2, 2015
    Date of Patent: February 13, 2018
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Yan Wang, Weihua Hu
  • Patent number: 9848450
    Abstract: Described herein is a method for processing an invalidation of a downlink data tunnel between networks. The method includes the following steps: (1) a core network user plane anchor receives an error indication of data tunnel sent from an access network device, (2) after deciding that the user plane corresponding to the error indication uses a One Tunnel technology, the core network user plane anchor notifies a relevant core network control plane to request recovering the downlink data tunnel, (3) the core network control plane recovers the downlink data tunnel and notifies the core network user plane anchor to update information of the user plane. In addition, a communication system and a communication device are also provided. The method, system, and device can improve the speed of recovering data transmission after the downlink data tunnel becomes invalid.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: December 19, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Weihua Hu
  • Publication number: 20170346764
    Abstract: Embodiments of the present invention provide a method for processing information, a forwarding plane device and a control plane device. The method includes: receiving a data packet, and extracting the data packet's characteristic information; searching for context information corresponding to the data packet's characteristic information; buffering or discarding the data packet if the context information is not found; and sending an event reporting message to a gateway control plane device, wherein the event reporting message carries the data packet's characteristic information, so that the gateway control plane device acquires the context information corresponding to the data packet's characteristic information. forwarding of the data packet to the greatest extent.
    Type: Application
    Filed: August 17, 2017
    Publication date: November 30, 2017
    Inventors: Shiyong Tan, Hui Ni, Hui Cai, Weihua Hu
  • Patent number: 9832130
    Abstract: The present invention provides a data packet routing method and device. When a Switch receives, form an SE, a traffic flow on which service processing is performed, the Switch can determine a forwarding rule of a corresponding service chain according to the traffic flow received from the SE, and route, according to the forwarding rule, a data packet received from the SE. Compared with a case in the prior art in which an SPC needs to deliver a forwarding rule corresponding to each traffic flow to a Switch, the embodiments of the present invention adopt the technical solutions in which the SPC only needs to deliver a forwarding rule corresponding to each service chain to the Switch, thereby reducing signaling interaction between the SPC and the Switch and saving a network overhead.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: November 28, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Weihua Hu, Han Zhou, Yan Wang
  • Patent number: 9787537
    Abstract: Embodiments of the present invention provide a customizable mobile broadband network system and a method for customizing a mobile broadband network. The mobile broadband network system includes a forwarding layer, a control layer, and a capability opening layer. The forwarding capability and the control capability of the mobile broadband network system according to the embodiments of the present invention are decoupled from each other, and the capability opening layer combines a required capability according to the network customization request, so as to manage the corresponding customized-network instance. Therefore, a mobile network can be customized according to a requirement of a user.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: October 10, 2017
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Haobing Zhu, Jiang Li, Weihua Hu, Yan Wang
  • Patent number: 9769089
    Abstract: Embodiments of the present invention provide a method for processing information, a forwarding plane device and a control plane device. The method includes: receiving a data packet, and extracting characteristic information of the data packet; searching for context information corresponding to the characteristic information of the data packet; buffering or discarding the data packet if the context information is not found; and sending an event reporting message to a gateway control plane device, wherein the event reporting message carries the characteristic information of the data packet, so that the gateway control plane device acquires the context information corresponding to the characteristic information of the data packet. In this way, the gateway forwarding plane device can acquire context information to the greatest extent under the condition that the context information is lost, thereby ensuring accurate forwarding of the data packet to the greatest extent.
    Type: Grant
    Filed: December 23, 2014
    Date of Patent: September 19, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Shiyong Tan, Hui Ni, Hui Cai, Weihua Hu
  • Patent number: 9763077
    Abstract: A method and system for implementing data routing of a roaming user are disclosed. The method comprises: configuring a roaming protocol between the home network and the roaming network; during the registering process of the user in the roaming network, performing an interactive negotiation between the home network and the roaming network, so as to determine one of the home network and the roaming network to allocate IP address according to the roaming protocol between the home network and the roaming network; and establishing the IP access bearer based on the IP address.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: September 12, 2017
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventor: Weihua Hu
  • Publication number: 20170127319
    Abstract: A data processing method when the handover or change appears between systems includes: a Mobility Management network element sends a data forwarding tunnel identifier of a target side processing network element to a user plane anchor network element, obtains a data forwarding tunnel identifier of the user plane anchor network element, and sends the data forwarding tunnel identifier of the user plane anchor network element to a source data forwarding network element.
    Type: Application
    Filed: October 11, 2016
    Publication date: May 4, 2017
    Inventors: Wenfu WU, Weihua HU
  • Publication number: 20160323193
    Abstract: A service routing method includes parsing a received data packet to obtain a service type of the data packet; obtaining a service data routing label according to a correspondence between the service type and the service data routing label, where the service data routing label is used to identify a routing path, and the routing path is used to describe a network path for routing the data packet to a service enabler; attaching the service data routing label to the data packet; and sending the data packet to a switch. According to the service routing method provided in embodiments of the present disclosure, data traffic of a traffic classifier is reduced, and load on the traffic classifier is lightened.
    Type: Application
    Filed: June 30, 2016
    Publication date: November 3, 2016
    Inventors: Han Zhou, Weihua Hu, Yan Wang, Xuejiao Yang
  • Publication number: 20160294686
    Abstract: The present invention provides a packet processing method and an apparatus. The method includes: determining a to-be-installed flow entry and packet sending information; and sending, to a switch, a flow entry installation message carrying the to-be-installed flow entry and the packet sending information, so that the switch obtains the to-be-installed flow entry and the packet sending information from the flow entry installation message, installs the flow entry, and sends a packet according to the packet sending information.
    Type: Application
    Filed: June 9, 2016
    Publication date: October 6, 2016
    Applicant: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Weihua HU, Hui NI, Shiyong TAN
  • Publication number: 20160099874
    Abstract: The present invention provides a data packet routing method and device. When a Switch receives, form an SE, a traffic flow on which service processing is performed, the Switch can determine a forwarding rule of a corresponding service chain according to the traffic flow received from the SE, and route, according to the forwarding rule, a data packet received from the SE. Compared with a case in the prior art in which an SPC needs to deliver a forwarding rule corresponding to each traffic flow to a Switch, the embodiments of the present invention adopt the technical solutions in which the SPC only needs to deliver a forwarding rule corresponding to each service chain to the Switch, thereby reducing signaling interaction between the SPC and the Switch and saving a network overhead.
    Type: Application
    Filed: December 10, 2015
    Publication date: April 7, 2016
    Inventors: Weihua Hu, Han Zhou, Yan Wang
  • Publication number: 20160080253
    Abstract: The present invention provides a service routing system, device, and method. In embodiments of the present invention, a first service flow classifier generates a notification message that includes service flow category information, a service path controller generates, according to the notification message, a first forwarding entry corresponding to each of i programmable switches that are connected to k service enablers, and the i programmable switches each forward a data packet of a service flow according to the corresponding first forwarding entries, so that the k service enablers process the data packet of the service flow according to a sequence. In this way, network reliability can be improved.
    Type: Application
    Filed: November 20, 2015
    Publication date: March 17, 2016
    Inventors: Yan Wang, Weihua Hu, Ming Jiang, Tao Qian
  • Publication number: 20160006606
    Abstract: Embodiments of the present invention provide a customizable mobile broadband network system and a method for customizing a mobile broadband network. The mobile broadband network system includes a forwarding layer, a control layer, and a capability opening layer. The forwarding capability and the control capability of the mobile broadband network system according to the embodiments of the present invention are decoupled from each other, and the capability opening layer combines a required capability according to the network customization request, so as to manage the corresponding customized-network instance. Therefore, a mobile network can be customized according to a requirement of a user.
    Type: Application
    Filed: January 31, 2013
    Publication date: January 7, 2016
    Applicant: Huawei Technologies Co., Ltd.
    Inventors: Haobing ZHU, Jiang LI, Weihua HU, Yan WANG
  • Patent number: 9155000
    Abstract: A method for user detachment when a handover or change occurs in a heterogeneous network is provided. The method includes: a user equipment (UE) is handed over or switched from a source network to a target network; a network element on a network side determines whether to detach the UE from the source network, and if yes, the network element on the network side detaches the UE from the source network. A system and a device for user detachment when a handover or change occurs in a heterogeneous network, and another method for user detachment when a handover or change occurs in a heterogeneous network are also provided.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: October 6, 2015
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wenfu Wu, Weihua Hu, Shanshan Wang
  • Publication number: 20150249570
    Abstract: A method for configuring a path for intercepting user data, a method for intercepting user data, an apparatus, a system, a control plane entity and a user plane entity, the method for configuring the path for intercepting user data comprises: acquiring a target to be intercepted and an intercepting interface address; configuring data path configuration information on a user plane entity GW-U according to the target to be intercepted and the intercepting interface address; sending the data path configuration information to the user plane entity GW-U so that the GW-U establishes a path for data transmission; initiating an establishment of an intercepting connection of an intercepting interface to an intercepting entity based on the intercepting interface address so as to transmit the data of the target to be intercepted.
    Type: Application
    Filed: May 19, 2015
    Publication date: September 3, 2015
    Inventors: Jin ZHANG, Shiyong TAN, Weihua HU
  • Publication number: 20150244570
    Abstract: The present invention discloses a method, an apparatus, and a system for implementing tunneling processing. The method for implementing tunneling processing includes: determining, by an openflow controller, matching field information, a tunneling protocol type, and a tunneling operation type of a data packet corresponding to tunneling processing; sending, by the openflow controller, first configuration information to an openflow forwarding apparatus; and sending, by the openflow controller, second configuration information to the tunneling protocol processing apparatus, where the second configuration information is used to give an instruction for processing, according to the tunneling operation type and the tunneling protocol type, the data packet matching the matching field information. The method, apparatus, and system for implementing tunneling processing according to the embodiments of the present invention can implement tunneling processing of multiple tunneling protocol types in an openflow network.
    Type: Application
    Filed: April 29, 2015
    Publication date: August 27, 2015
    Inventors: Yan Wang, Weihua Hu
  • Patent number: 9113375
    Abstract: A method for user detachment when a handover or change occurs in a heterogeneous network is provided. The method includes: a user equipment (UE) is handed over or switched from a source network to a target network; a network element on a network side determines whether to detach the UE from the source network, and if yes, the network element on the network side detaches the UE from the source network. A system and a device for user detachment when a handover or change occurs in a heterogeneous network, and another method for user detachment when a handover or change occurs in a heterogeneous network are also provided.
    Type: Grant
    Filed: July 29, 2013
    Date of Patent: August 18, 2015
    Assignee: HUAWEI TECHNOLOGIES CO., LTD.
    Inventors: Wenfu Wu, Weihua Hu, Shanshan Wang
  • Patent number: 9088918
    Abstract: A method for information transfer includes: determining, by a source Mobility Management Network Element (MMNE) of a source Access Network (AN), version number of GPRS Tunneling Protocol (GTP) used between the source MMNE and a destination MMNE of a destination AN; and transmitting, by the source MMNE, user information corresponding to the version number of the GTP used between the source MMNE and the destination MMNE to the destination MMNE. The embodiment of the invention also provides a device for information transfer. With the embodiment of present invention, corresponding user information transfer may be realized.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: July 21, 2015
    Assignee: Huawei Technologies Co., Ltd.
    Inventors: Weihua Hu, Wenfu Wu