Telefonaktiebolaget Lm Ericsson (publ)

Fredrik Garneij

Jari Arkko

Jan Melén

Mats Fredrik Sagfors

Jan Backman

Stefan Rommer

Heikki Mahkonen

John Stenfelt

Lars Lövsén

Tero Kauppinen

Patrik Dannebro

Christian Gotare

Lars Lovsen

Martti Kuparinen

Lars Gunnar Lövsén

Mats Sågfors

A method for providing IP address translation services includes receiving, at a network node, a data packet from a wireless device. The data packet includes a target IP address associated with a destination device. The network node translates the target IP address into a synthetic IP address that contains the target IP address. A modified data packet is generated by replacing the target IP address in the data packet with the synthetic IP address. The network node transmits the modified data packet to the destination device.

System and method for providing IP address translation services

The embodiments herein relate to a method in a policy node configured to handle traffic flows in a communications system. The policy node allocates a label-setting identifying a label, a particular traffic flow that will pass through a SDN, and one or more destinations for the particular traffic flow. The policy node transmits information indicating the label-setting to a SDNC configured to create a path for the traffic flow through the SDN based on the label and said one or more destinations identified by the label-setting. The policy node allocates a filter-setting defining that the particular traffic flow should be associated with the label. The policy node transmits information indicating the filter-setting to a classifying node configured to receive the particular traffic flow and to associate the particular traffic flow with the label.

Handling of traffic flows in a communications system

A method performed in a user equipment, UE, () and a gateway () for data communication in aGPP network via an access point name, APN, capable of providing support for packet data network, PDN, connectivity using a first internet protocol version and PDN connectivity using a second internet protocol version. The method comprises the steps of the UE requesting (S) dual stack PDN connectivity from a gateway () and receiving (S) a single IP address on either the first or the second internet protocol version from the gateway () and further receiving (S) from the gateway () a cause code indicating that only the assigned PDN and internet protocol version is allowed.

IP address assignment for a UE in 3GPP

This disclosure relates to controlling unwanted traffic to a device () in a communication network (). The idea is to provide a more fine-grained control of incoming packets or connection attempts, by using an inclusive firewall () i.e. a firewall operating on 'white-listed' traffic to a device (). The disclosure, relates to a method for controlling a data flow to a device in a communication network, using a firewall located in the path between said device and a source node. The method comprises receiving (), in said firewall, at least one data packet of said data flow. The firewall then reads (), a predefined selection of bits of said at least one data packet, wherein the selection of bits is contained in at least one field of said data packet. The at least field or fields, including the selection of bits, carry a first type information. The firewall then forwards () the at least one data packet to the device, if selection of bits fulfills a policy of said device. The policy is defining requirements by which packets to said device are solicited. Hence, the solicitation of packets is a second type of information carried by said selection of bits. The disclosure further relates to a methods controlling a data flow, as well as to a firewall (), a source () and a device ().

Method and firewall for soliciting incoming packets

The invention relates to a method for authenticating a device, comprising a network communication unit and tagging circuit, in a mobile communication network, using a mobile entity comprising a tagging circuit and being authenticated to the mobile communication network. The method comprises the following steps; the mobile entity establishing a connection with the device, using said tagging circuit, exchanging authentication data between the mobile entity and the device using the tagging circuit and authenticating the device to the mobile communication network by submission of exchanged authentication data in the mobile communication network. Thereby, the permissions of a mobile entity may be shared with another device by tagging. The invention also relates to a corresponding mobile entity, device, node and computer program product.

Device authentication by tagging

The invention relates to a method and system for network communication wherein a Policy and Charging Control Function (PCRF;) is aware of any Network Address Translator (NAT;) bindings of the user equipment (UE;).

Method for PCC support for scenarios with NAT in the GW

The present invention relates to a Domain Name System (DNS) server and a method for resolving DNS queries from a number of clients. The DNS server comprises multiple virtual DNS server instances servicing different clients. The DNS server further comprises a shared cache for caching records which indicate answers to resolved DNS queries. The shared cache is shared between a set of virtual DNS server instances. The virtual DNS server instances that share the shared cache are able to cache DNS query results in the shared cache as well as resolve a DNS query by retrieving a cached record corresponding to the DNS query from the shared cache. Thus it is possible for a virtual DNS server instance to make use of DNS query results obtained by other virtual DNS server instances.

DNS server arrangement and method

The invention provides for a method and a node for integrating the devices (-) of a meshed multi-hop network () in a mobile communication network (). The method comprises the following steps: attaching at least one device of said meshed multi-hop network to said mobile communication network, retrieving, in at least one node of said mobile communication network, from at least one base station of said mobile communication network, information about the devices of said meshed multi-hop network that may be accessed through said base station, and storing, in said node () for each device, said information such that said node knows, for each device, through which base stations () it may be accessed. Thereby, the meshed multi-hop network is integrated in the mobile communication network.

Integrating multi-hop mesh networks in mobile communication networks

The invention discloses a user terminal () for a wireless communications system () which is arranged to establish and carry out a communications session with a gateway node () in the system () according to a first protocol over at least one bearer (). The user terminal () is arranged to provide a predefined issued message to the gateway node () during the establishment of a session with an indicator that the user terminal () is arranged to handle traffic to and from the gateway node () using a predefined version of a defined filter ().

Devices for variable traffic flow templates

1. A Charging Data Record, CDR, generating node () for a cellular access system (), the CDR generating node () being characterized in that it is arranged to generate CDRs for Internet Protocol version 6, IPv6, traffic in the CDR format for IPv4 traffic instead of in the CDR format for Iv6 traffic, the Charging Data Record generating node being arranged to generate IPv4 CDRs for IPv6 traffic instead of IPv6 CDRs by means of changing the Information Element 'pdpType' or the Information Element 'pdpPDNType' from F157H to F121H, and by means of changing the Information Element &#x201c;served PDPaddress&#x201d; or the Information Element &#x201c;served PDPPDN Address&#x201d; from an IPv6 format to an IPv4 format

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Göteborg, Sweden

Fredrik Garneij