Patents by Inventor Zu Qiang
Zu Qiang 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).
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Patent number: 9843975Abstract: A method for use in establishing a packet data network, PDN, connection from a user equipment or UE, to a 3GPP core network via a non-3GPP access network. The method comprises receiving at the non-3GPP access network a request to establish the PDN connection; communicating with the 3GPP core network to establish a tunnel for the PDN connection between the non-3GPP access network and the 3GPP core network and to assign an IP address for the tunnel, which tunnel IP address is used subsequently by the non-3GPP access network to distinguish between the new PDN connection tunnel and at least one other such PDN connection tunnel already established for the UE, wherein the 3GPP core network is responsible for assigning the IP address, and sending address information from the non-3GPP access network to the 3GPP core network.Type: GrantFiled: February 17, 2011Date of Patent: December 12, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Dinand Roeland, Zu Qiang
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Publication number: 20170331746Abstract: The use of Network Virtualization using Overlays over Layer 3 (NVO3) is a growing trend to address networking issues in data centers that make use of virtualization and cloud computing techniques. Additional considerations may be required to support application-specific multicast traffic in such overlay networks. Systems and methods are provided for an overlay network control function node to allocate one or more overlay network edge nodes to act as a multicast gateway for each network segment. The gateway can distribute multicast traffic to other participating edge nodes in its same network segment, thus reducing network traffic.Type: ApplicationFiled: October 26, 2015Publication date: November 16, 2017Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventor: Zu QIANG
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Publication number: 20170318451Abstract: Example embodiments presented herein are directed towards determining a Proxy Mobile Internet Protocol version 6 (PMIPv6) control plane used by a network node peer in an Internet Protocol version 4 (IPv4) transport network. The example embodiments provide a mechanism in PMIP protocol stack, to allow a Mobility Access Gateway/Local Mobility Anchor (MAG/LMA) node such as SGW (which may be supporting both PMIP draft and PMIP RFC) to decide which PMIP protocol stack shall be used to communicate to the peer node, i.e. LMA/MAG.Type: ApplicationFiled: July 17, 2017Publication date: November 2, 2017Applicant: Telefonaktiebolaget LM Ericsson (publ)Inventors: Zu QIANG, Yong YANG
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Patent number: 9794176Abstract: Systems and methods for differentiating between a duplicate MAC address situation and a multiple MAC address movement situation are provided. A node receives a new MAC address determines if it is a known or unknown MAC address by comparing it with a stored MAC address table. If it is a previously known MAC address, the node initiates a duplicate MAC address detection process to determine if at least one of the duplicate MAC addresses is no longer valid or is the result of a MAC mobility event.Type: GrantFiled: June 6, 2014Date of Patent: October 17, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Zu Qiang
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Patent number: 9794352Abstract: Systems and methods for managing a service set in network function virtualization (NVF) are provided. A service set can be defined as an ordered list of services to be applied to packet traffic and assigned to instances of the services in a distributed pool of virtual hosts. Responsive to determining that a first service in the service set is to be transferred from a first host to a second host, other services in the service set can also be identified to be transferred to the second host to maintain quality of service and latency as a packet is processed by the service set.Type: GrantFiled: November 4, 2014Date of Patent: October 17, 2017Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventor: Zu Qiang
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Patent number: 9749838Abstract: Example embodiments presented herein are directed towards determining a Proxy Mobile Internet Protocol version 6 (PIMPv6) control plane used by a network node peer in an Internet Protocol version 4 (IPv4) transport network. The example embodiments provide a mechanism in PMIP protocol stack, to allow a Mobility Access Gateway/Local Mobility Anchor (MAG/LMA) node such as SGW (which may be supporting both PMIP draft and PMIP RFC) to decide which PMIP protocol stack shall be used to communicate to the peer node, i.e. LMA/MAG.Type: GrantFiled: April 26, 2012Date of Patent: August 29, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Zu Qiang, Yong Yang
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Patent number: 9674816Abstract: Example embodiments presented herein are directed towards a device, mobility management node and/or a serving gateway, and corresponding methods there, for providing application, service or priority based paging. According to some of the example embodiments, the decision whether or not to issue or accept a paging request may be made based on a priority, application or service (or type of service) associated with the paging request.Type: GrantFiled: December 4, 2014Date of Patent: June 6, 2017Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Yong Yang, Zu Qiang, Hans Rönneke
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Publication number: 20170094505Abstract: A method of obtaining addressing information may include establishing a communication path through a network between first and second peer devices with a router coupled between the first peer device and the communication path through the network. A communication may be received at the first peer device from the second peer device through the communication path and the router. Moreover, a payload of the communication received at the first peer device from the second peer device may include a public reachability address used by the second peer device to transmit the communication through the network and the router to the first peer device. Related methods of providing such addressing information and related devices are also discussed.Type: ApplicationFiled: December 5, 2016Publication date: March 30, 2017Inventors: Ahmad MUHANNA, Zu QIANG, Dinand ROELAND
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Patent number: 9526119Abstract: A network can handle access attempts by a mix of user equipments (UEs) that do and do not support multiple packet data network connections and do and do not support Internet Protocol version 6 (IPv6) and access attempts from networks that do and do not support multiple PDN connections. A method of operating a Trusted Non-3GPP Access network with a 3GPP network involves an authentication, authorization, and accounting (AAA) proxy in the Trusted Non-3GPP Access network and a UE that supports multiple PDN connections, with the AAA proxy sending an indication to the UE that the network supports multiple PDN connections.Type: GrantFiled: June 25, 2012Date of Patent: December 20, 2016Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Ivo Sedlacek, Peter Hedman, Zu Qiang, Dinand Roeland
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Patent number: 9515986Abstract: A method of obtaining addressing information may include establishing a communication path through a network between first and second peer devices with a router coupled between the first peer device and the communication path through the network. A communication may be received at the first peer device from the second peer device through the communication path and the router. Moreover, a payload of the communication received at the first peer device from the second peer device may include a public reachability address used by the second peer device to transmit the communication through the network and the router to the first peer device. Related methods of providing such addressing information and related devices are also discussed.Type: GrantFiled: August 17, 2011Date of Patent: December 6, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Ahmad Muhanna, Zu Qiang, Dinand Roeland
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Publication number: 20160285769Abstract: A load balancing function is integrated into a Network Virtualization Edge, NVE, function. This load balancing function is configured by a Network Virtualization Authority, NVA, using a new protocol. The can thus enable or disable the LB function for a given VN in a specific NVE. According to one example method, the NVA receives (210) Virtual Machine, VM, configuration information from a VM orchestration system. Based on this information, the NVA configures (220) an attached NVE to enable load balancing by sending an enable message to the NVE. The NVA subsequently receives (230) a confirmation message from the NVE, indicating that the load balancing function is enabled. The NVA then updates (240) remote NVEs, allowing load balancing traffic to be sent to the first NVE.Type: ApplicationFiled: November 5, 2014Publication date: September 29, 2016Applicant: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventor: Zu Qiang
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Publication number: 20160277509Abstract: Systems and methods for managing a service set in network function virtualization (NVF) are provided. A service set can be defined as an ordered list of services to be applied to packet traffic and assigned to instances of the services in a distributed pool of virtual hosts. Responsive to determining that a first service in the service set is to be transferred from a first host to a second host, other services in the service set can also be identified to be transferred to the second host to maintain quality of service and latency as a packet is processed by the service set.Type: ApplicationFiled: November 4, 2014Publication date: September 22, 2016Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventor: Zu QIANG
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Patent number: 9392636Abstract: The application relates to IP address allocation. In certain contexts, the UE is not able or willing to indicate the IP capability it has. If there is a mismatch between the UE IP capability and the network assumption of that capability, extra resources may be allocated unnecessary. Embodiments include a non-3GPP gateway node that sends a message to a 3GPP gateway node including an indication that the PDN connection is to support a first and a second version of the Internet Protocol with allocation initially by the 3GPP gateway node of an IP address for the PDN connection of the first version but not the second version.Type: GrantFiled: September 19, 2012Date of Patent: July 12, 2016Assignee: Telefonaktiebolaget LM Ericsson (publ)Inventors: Dinand Roeland, Zu Qiang
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Patent number: 9363659Abstract: The embodiments herein relate to a method in a location information node (327) for providing location information associated with a home base station (345) to a PCRF (350). The node (327) is dedicated to handling the location information. When the home base station (345) sets up an IPSec tunnel with a SeGW (332), the node (327) receives the information from the AAA server (330). The node (327) transmits the information to the PCRF (350) via the MME/SGSN (325, 340) using an interface between the MME/SGSN (325, 340) and the PCRF (350), or to the PCRF (350) via the MME/SGSN (325, 340) and a SGW/PGW (343, 348) using a S11/S4 interface, a S5/S8 interface and a Gx/Gxx interface, or directly to the PCRF (350) using an interface between the node (327) and the PCRF (350).Type: GrantFiled: May 7, 2013Date of Patent: June 7, 2016Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Zu Qiang, Yong Yang
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Patent number: 9351275Abstract: Example embodiments presented herein are directed towards a device, mobility management node and/or a serving gateway, and corresponding methods there, for providing application, service or priority based paging. According to some of the example embodiments, the decision whether or not to issue or accept a paging request may be made based on a priority, application or service (or type of service) associated with the paging request.Type: GrantFiled: December 4, 2014Date of Patent: May 24, 2016Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Yong Yang, Zu Qiang, Hans Rönneke
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Patent number: 9351274Abstract: Example embodiments presented herein are directed towards a device, mobility management node and/or a serving gateway, and corresponding methods there, for providing application, service or priority based paging. According to some of the example embodiments, the decision whether or not to issue or accept a paging request may be made based on a priority, application or service (or type of service) associated with the paging request.Type: GrantFiled: January 16, 2013Date of Patent: May 24, 2016Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Yong Yang, Zu Qiang, Hans Rönneke
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Patent number: 9313094Abstract: Example embodiments are presented herein which relate to signaling in the presence of a Proxy-Call Session Control Function (P-CSCF) node failure or restart in a Proxy Mobile Internet Protocol (PMIP) based network. The example embodiments provide a means for a PGW or GGSN, which functions as a Local Mobility Anchor (LMA), to provide an update or indication of the P-CSCF failure or restart directly to a Serving Gateway, which functions as a Mobility Access Gateway (MAG).Type: GrantFiled: October 26, 2012Date of Patent: April 12, 2016Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)Inventors: Zu Qiang, Yong Yang
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Patent number: 9241364Abstract: The invention relates to a method of operating a network node in a telecommunication network, such as an MME. The method comprising: initiating a PDN connection revocable deletion procedure for a device when at least one predetermined criterion is fulfilled; sending a PDN connection revocable deletion request to another network node; receiving a PDN connection revocable deletion response message from said other second network node; and storing data indicating that a PDN connection with said device is revocably deleted.Type: GrantFiled: November 27, 2012Date of Patent: January 19, 2016Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Hans Ronneke, Zu Qiang, Yong Yang
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Publication number: 20150296548Abstract: A method and apparatus for establishing and controlling a tunnel for carrying a PDN connection between a first endpoint and a second endpoint. The first endpoint sends a request to set up a tunnel, the request including a first identifier. It then receives a second identifier for use identifying the tunnel when receiving data sent from the second endpoint to the first endpoint. Data packets are sent from the first endpoint, the data packets including the first and/or second identifiers for identifying the tunnel from the first endpoint to the second endpoint. Data packets are received from the second endpoint, the data packets including the second identifier from the second endpoint to the first endpoint.Type: ApplicationFiled: October 9, 2013Publication date: October 15, 2015Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)Inventors: Dinand Roeland, Zu Qiang, Stefan Rommer
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Patent number: 9131485Abstract: The invention relates to a method of operating a network node in a telecommunication network, such as an MME. The method comprising: initiating a PDN connection revocable deletion procedure for a device when at least one predetermined criterion is fulfilled; sending a PDN connection revocable deletion request to another network node; receiving a PDN connection revocable deletion response message from said other second network node; and storing data indicating that a PDN connection with said device is revocably deleted.Type: GrantFiled: October 8, 2014Date of Patent: September 8, 2015Assignee: Telefonaktiebolaget L M Ericsson (punl)Inventors: Hans Ronneke, Zu Qiang, Yong Yang