Patents by Inventor Stefan Rommer

Stefan Rommer 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).

  • Publication number: 20160007236
    Abstract: The application relates to session mobility between 3GPP, such as UMTS and LTE, networks and non-3GPP, such as WLAN, access networks and in particular network-based mobility where the PDN gateway PDN GW acts as the user-plane anchor between the two. This topic is discussed in 3GPP, ongoing work item Study on S2a Mobility based On GTP & WLAN access to EPC, SaMOG, TR 23.852; and TS 23.402. Within the SaMOG Rel-12 study, a number of solutions for handover with IP address preservation have been proposed, see 3GPP TR 23.852 section 8.2. However, the current standards do not prevent that that in case of handover, the UE interface for the source path might be released before the configuration for the target path interface has been configured and the UE might not have any interface at all. Hence, the application proposes that release of the source path resources is delayed until the relevant network node has received an indication that the UE has configured its communication interface for the target path.
    Type: Application
    Filed: February 17, 2014
    Publication date: January 7, 2016
    Inventors: Dinand Roeland, Kaiyuan Huang, Juying Gan, Stefan Rommer, Chengqiong Xie, Deqin Zhan
  • Patent number: 9232438
    Abstract: A Mobile Control Entity (125, 225) for a system (100, 200), arranged to communicate with a first Mobile Gateway (110, 210) and a Radio Network Control Entity (130, 230), to receive an instruction from the first Mobile Gateway (110, 210) to arrange a filter for IP traffic from User Equipments (135, 235) in the Radio Network Control Entity (130, 230), to receive data from the first Mobile Gateway (110, 210) regarding the filter, comprising information on which IP traffic from User Equipments to forward to the first or to a second (120, 220) Mobile Gateway respectively, to transmit instructions to a second Mobile Gateway (120, 220) to establish a connection to the Radio Network Control Entity (130, 230) for IP traffic from User Equipments, and to transmit the instructions and the data regarding the IP traffic filter to the Radio Network Control Entity (130, 230).
    Type: Grant
    Filed: May 19, 2011
    Date of Patent: January 5, 2016
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON
    Inventors: Goran Hall, Stefan Rommer, Ann-Christine Sander
  • Publication number: 20150341788
    Abstract: When setting up communication from a user equipment UE (1), such as for providing IP access for the UE in order to allow it to use some service, information or an indication of at least one network property relating to a first network, e.g. the current access network (3, 3?), is sent to the UE from a node (13) in a second network such as the home network (5) of the subscriber of the UE. The information or indication can be sent in a first stage of an authentication procedure being part of the setting up of a connection from the UE. In particular, the network property can indicate whether the access network (3, 3?) is trusted or not.
    Type: Application
    Filed: August 6, 2015
    Publication date: November 26, 2015
    Inventors: Mats Näslund, Jari Arkko, Rolf Blom, Vesa Petteri Lehtovirta, Karl Norrman, Stefan Rommer, Bengt Sahlin
  • Patent number: 9197714
    Abstract: The present invention relates to a solution for handling customer activity when connecting to a wireless communication network and in particular for statistics of customer activity using the network. This is provided in a number of aspects such as methods, node, and system for reporting user profile statistics from deep packet inspection of data packets in a packet data network (100) to a policy and charging rules function entity (104) which in turn informs a subscriber usage profile repository (106), i.e. SUPR. The SUPR provides access to external application servers (108) to the subscriber usage profile information after access control.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: November 24, 2015
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: John Stenfelt, Dirk Kopplin, Stefan Rommer, Hans Bertil Ronneke
  • Publication number: 20150327065
    Abstract: A method for use in a network node (210, 220) in a Wi-Fi network (200) for handling an access attempt by a wireless device (121) is provided. The wireless device (121) is also configured to operate in a wireless telecommunications network (100). The wireless telecommunications network (100) comprises a policy control node (350) comprising information associated with the wireless device (121) that is registered via the wireless telecommunications network (100). The network node receives the information associated with the wireless device (121) from the policy control node (350) in response to transmitting an authentication request comprising an identifier associated with the wireless device (121) to an authentication node (510, 520) based on an access attempt to the Wi-Fi network (200) by the wireless device (121). Then, the network node determines whether or not the access attempt by the wireless device (121) to the Wi-Fi network (200) is allowed at least partly based on the received information.
    Type: Application
    Filed: November 27, 2012
    Publication date: November 12, 2015
    Inventors: Gunnar Mildh, Göran Hall, Anders Lundström, Stefan Rommer, Jari Vikberg
  • Publication number: 20150327073
    Abstract: This invention relates to methods, user equipment, access controller, and equipment identity register for controlling access of a user equipment, UE, (100) to services provided by a communication network (101). The UE (100) is adapted to support at least a first access technology (202), said at least first access technology (202) is associated with at least one first equipment identifier (206), and said first equipment identifier uniquely identifies the UE (100). The method comprises the first steps of receiving a network access request to services via said first access technology (202), said network access request comprising said first equipment identifier (206). The method comprises the second steps of receiving at least one additional equipment identifier not related to said first access technology (202), said additional equipment identifier uniquely identifying the UE (100). The method comprises the third steps of and controlling the UE's (100) access to the services based on the received information.
    Type: Application
    Filed: January 29, 2013
    Publication date: November 12, 2015
    Inventors: Stefan Rommer, Emiliano Merino Vazquez, Marta Montejo Ayala, Tomas Muehlhoff, Angel Navas Cornejo, Gema Segura Cava
  • Publication number: 20150312383
    Abstract: A method and apparatus for handling Multipath Transmission Control Protocol, MPTCP, signaling in a communications network. The communications network includes a first node hosting an MPTCP proxy function, and a second node in a second access network. The second node receives from a mobile terminal an attachment request. The second node then sends a message to a remote database and receives a response, the response including an identity of the first node. An MPTCP data path can then be redirected from the second access network to the MPTCP proxy function. Even in cases where the MPTCP proxy function is located at or between the PDN Gateway and the mobile terminal, the second access can be made aware of the location of the MPTCP proxy function and route MPTCP data traffic accordingly.
    Type: Application
    Filed: December 14, 2012
    Publication date: October 29, 2015
    Inventors: Dinand ROELAND, Gunnar MILDH, Stefan ROMMER, Jari VIKBERG
  • Patent number: 9167481
    Abstract: A method for providing access feedback when a User Equipment, UE, with an established a connection over multiple accesses towards a Gateway, GW, initiates a set-up of a new service for a service session. The method comprises a step where the GW or a Policy and Charging Rules Function, PCRF, initiates a Quality of Service, QoS, resource reservation as a response of the set-up of the new service initiated by the UE. The GW or the PCRF in the QoS resource reservation selects a first access as present access. The method is particularly characterized in a step where the UE rejects said first access as present access and sends a reject message to the GW, wherein the GW or the PCRF as a result of the reject message initiates a new QoS resource reservation selecting a second access as present access.
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: October 20, 2015
    Assignee: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Stefan Rommer, Dirk Kopplin, Hans Ronneke, John Stenfelt
  • Publication number: 20150296548
    Abstract: 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: Application
    Filed: October 9, 2013
    Publication date: October 15, 2015
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Dinand Roeland, Zu Qiang, Stefan Rommer
  • Patent number: 9137231
    Abstract: When setting up communication from a user equipment UE (1), such as for providing IP access for the UE in order to allow it to use some service, information or an indication of at least one network property relating to a first network, e.g. the current access network (3, 3?), is sent to the UE from a node (13) in a second network such as the home network (5) of the subscriber of the UE. The information or indication can be sent in a first stage of an authentication procedure being part of the setting up of a connection from the UE. In particular, the network property can indicate whether the access network (3, 3?) is trusted or not.
    Type: Grant
    Filed: November 26, 2013
    Date of Patent: September 15, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Mats Näslund, Jari Arkko, Rolf Blom, Vesa Petteri Lehtovirta, Karl Norrman, Stefan Rommer, Bengt Sahlin
  • Patent number: 9094437
    Abstract: A system, policy nodes, and methods are described herein for establishing a policy session (e.g., IP-CAN session) for a user equipment between a first policy node (e.g., BPCF) which is associated with a fixed broadband access network (e.g., non-3GPP access network) and a second policy node (e.g., PCRF) which is associated with an evolved packet core network (e.g., 3GPP access network).
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: July 28, 2015
    Assignee: TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)
    Inventors: Maria Belen Pancorbo Marcos, Stefan Rommer
  • Publication number: 20150208317
    Abstract: The present disclosure relates to a method performed by a network element in a communication network for routing an IP session to a radio device over a WLAN, the IP session comprising at least one bearer. The method comprises obtaining an identifier for each of the at least one bearer of the IP session. The method also comprises mapping downlink data packets of the IP session to the identifier for each of the at least one bearer of the IP session. The method also comprises transmitting each of the DL packets on a bearer of said at least one bearer, together with the identifier for the bearer it has been mapped to, over the WLAN to the radio device. The disclosure also relates to a network element and a radio device, as well as to other methods thereof.
    Type: Application
    Filed: January 16, 2015
    Publication date: July 23, 2015
    Inventors: Jan Backman, Dinand Roeland, Stefan Rommer, Daniel Nilsson
  • Publication number: 20150201453
    Abstract: A method, implemented by a network node, for establishing an efficient dummy network connection between a mobile device and a first network includes establishing at least one data connection between the mobile device and the first network. The method further includes receiving a request to establish the efficient dummy network connection. The method also includes establishing the efficient dummy network connection after receiving the request, where the efficient dummy network connection that is established uses a minimum number of network resources, said minimum number of network resources being less than the number of network resources used in the at least one data connection.
    Type: Application
    Filed: January 13, 2014
    Publication date: July 16, 2015
    Applicant: TELEFONAKTIEBOLAGET L M ERICSSON (PUBL)
    Inventors: Dinand ROELAND, Peter Hedman, Stefan Rommer, Ivo Sedlacek
  • Publication number: 20150181516
    Abstract: in one aspect, the present invention provides a method for selecting a GGSN. The method may include obtaining a network address for a home agent; transmitting a request to a name server for a name associated with the network address; receiving from the name server in response to the request a name associated with the network address; initiating a GPRS attachment; and after initiating the GPRS attachment, initiating a PDP context activation, wherein the step of initiating the PDP context activation comprises transmitting the name to an SGSN, and the SGSN is configured to use the name to lookup an IP address of a GGSN.
    Type: Application
    Filed: March 4, 2015
    Publication date: June 25, 2015
    Inventors: Stefan Rommer, Ann-Christine Sander
  • Patent number: 8995317
    Abstract: In one aspect, the present invention provides a method for selecting a GGSN. The method may include obtaining a network address for a home agent; transmitting a request to a name server for a name associated with the network address; receiving from the name server in response to the request a name associated with the network address; initiating a GPRS attachment; and after initiating the GPRS attachment, initiating a PDP context activation, wherein the step of initiating the PDP context activation comprises transmitting the name to an SGSN, and the SGSN is configured to use the name to lookup an IP address of a GGSN.
    Type: Grant
    Filed: May 9, 2008
    Date of Patent: March 31, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Stefan Rommer, Ann-Christine Sander
  • Publication number: 20150063328
    Abstract: A system, policy nodes, and methods are described herein for establishing a policy session (e.g., IP-CAN session) for a user equipment between a first policy node (e.g., BPCF) which is associated with a fixed broadband access network (e.g., non-3GPP access network) and a second policy node (e.g., PCRF) which is associated with an evolved packet core network (e.g., 3GPP access network).
    Type: Application
    Filed: July 16, 2012
    Publication date: March 5, 2015
    Inventors: Maria Belen Pancorbo Marcos, Stefan Rommer
  • Patent number: 8948108
    Abstract: The present invention relates to a method for enabling resource allocation for a service data flow between a user equipment (14) and a gateway in a multiple access environment. The method comprises the steps of:—A resource reservation device (10,19) receives reservation instructions from a policy control node (13). The reservation instructions require dedicated access resources to be reserved for the service data flow.—The resource reservation device (10,19) reports the result of the resource reservation required by the reservation instructions to the policy control node (13). What particularly characterize the method are the steps of:—The resource reservation device (10,19) requests reservation of the resources required by the reservation instructions in a plurality of accesses (11,12).—The resource reservation device (10,19) reports the selected single access (11,12) that enables the requested resources to the policy control node (13). This is reported when the access (11,12) is selected.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: February 3, 2015
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: John Stenfelt, Dirk Kopplin, Stefan Rommer, Hans Ronneke
  • Publication number: 20140269740
    Abstract: The invention relates to a method and system for network communication wherein a Policy and Charging Control Function (PCRF; 6) is aware of any Network Address Translator (NAT; 7) bindings of the user equipment (UE; 2).
    Type: Application
    Filed: February 1, 2011
    Publication date: September 18, 2014
    Applicant: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: Fredrik Garneij, Stefan Rommer
  • Patent number: 8774198
    Abstract: A Packet Data Network Gateway, a PDN-GW (105), arranged to receive and forward packet data of at least a first and a second service flow in both an uplink and a downlink direction, with a first access network (125) of a first kind being used for the first service flow and a second access network (130) of a second kind being used for the second service flow. The PDN-GW (105) is arranged to transmit to a PCRF (110), a Policy and Charging Rules Function, information regarding which kinds of access networks that the PDN-GW (105) can handle, and to receive, in reply from the PCRF, rules for which of said access networks (125, 130) that should be used for said service flows. The PDN-GW (105) is also arranged to use said rules to bind a service flow to an access network (125, 130) in the downlink direction and to perform access network binding verification in the uplink direction.
    Type: Grant
    Filed: February 9, 2009
    Date of Patent: July 8, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (publ)
    Inventors: John Stenfelt, Lars Gunnar Lovsen, Stefan Rommer
  • Patent number: 8755352
    Abstract: The present invention relates to a solution for handling deferred leg linking in policy and charging rules function in a telecommunications network in relation to handover between two different access technologies. The solution is provided as a nodes, system and a method for handling handover of a user equipment, i.e. UE, (101) in a telecommunications network (100) from one access technology to another access technology, comprising the steps of detecting (203) in a target access gateway, i.e. AGW, (102) that a handover state of the UE is unknown, sending (204) from the target access gateway a gateway control session, i.e. GCS, establishment message to a policy and charging rules function node (105), wherein the message comprise an indication that leg linking of a session is to be deferred until reception of corresponding control signalling from a packet data network gateway (104).
    Type: Grant
    Filed: March 5, 2010
    Date of Patent: June 17, 2014
    Assignee: Telefonaktiebolaget L M Ericsson (Publ)
    Inventors: Stefan Rommer, Susana Fernadez Alonso, Lars Gunnar Lovsen