Telefonaktiebolaget Lm Ericsson (publ)

Hans-Åke Lund

Staffan Bonnier

Lars Gunnar Folke Ahlström

Hans-Olof Sundell

Hans Bertil Rönneke

Gunnar Rydnell

Balázs Varga

Giovanni Fiaschi

Shuo Yang

Stefan Karl Toth

Shahryar Khan

Jonas Emanuel Rosenberg

Géza Gaál

Folke Lars Gunnar Ahlström

Ola Johansson

Folke Lars Gunnar AHLSTRÖM

Hans Olof Sundell

Lars Gunnar Folke AHLSTRÖM

A method (), performed by a first network node in a communication network, is disclosed. The first network node is connected to a second network node of the communication network via an interface implementing a GPRS Tunnelling Protocol (GTP). The method comprises selecting a user data packet for transmission to the second network node () and identifying information about the user data packet which impacts how the user data packet should be routed over the interface (). The method further comprises encoding the identified information into a User Datagram Protocol (UDP) header of the user data packet () and forwarding the user data packet to the interface for transmission to the second network node (). Another method () is disclosed, performed by a node in a Mobile Transport Network, the Mobile Transport Network providing a GTP based interface between a first network node of a communication network and a second network node of the communication network. The method comprises receiving a user data packet from the first network node for transmission over the interface to the second network node (), extracting, from a UDP header of the user data packet, information about the user data packet which impacts how the user data packet should be routed over the interface () and using the extracted information in a routing decision to forward the user data packet to the second network node (). Also disclosed are a communication network node (), a Mobile Transport Network node () and a computer program configured to carry out methods in a communication network node and a Mobile Transport Network node.

Methods and apparatus for network communication over an interface

A server for controlling user MTC devices. The server ascertains if a user MTC device has an IP connection to a cellular access network, and if so, sends a message to trigger the user MTC device to initiate an application defined in the message. If a user MTC device does not have an IP connection, the server ascertains if the user MTC device is a mobile or a stationary user MTC device, and for a stationary user MTC device, the server sends a message to the cellular access network to trigger the user MTC device to initiate an IP connection, and for a mobile user MTC device, waits until the user MTC device has an IP connection, and for both kinds of user MTC devices, when the user MTC device has an IP connection, transmits a message to the user MTC device to initiate an application defined in the message.

Method and arrangements for MTC communication

A packet data network gateway (PDN-GW) on a wireless telecommunications network having a target radio access network (RAN) and a Serving (GW) includes a processing unit which generates an end marker packet The PDN-GW includes a network interface which sends the end marker packet onto the network to assist the target RAN in reordering of downlink data. A method for a packet data network gateway (PDN-GW) on a wireless telecommunications network having a target radio access network (RAN) and a Serving (GW) includes the steps of generating an end marker packet with a processing unit. There is the step of sending the end marker packet onto the network with a network interface to assist the target RAN in reordering of downlink data.

Assist reordering of downlink data at serving GW relocation

Embodiments of the invention include a method for providing UE session resilience performed in a first PDN-GW that is coupled to a second PDN-GW, which are both in a PDN-GW pool. The method provides UE session resilience by allowing the first PDN-GW to provide connectivity for UE sessions previously serviced by the second PDN-GW after the second PDN-GW becomes non-operational. The first PDN-GW recognizes that the second PDN-GW failed and then activates a plurality of standby UE sessions. Each standby UE session is a backup UE session corresponding to a previously active UE session serviced on the second PDN-GW. Each standby UE session is associated with a UE device and a network resource identifier of an APN slice. The first PDN-GW transmits a message to a SGW that is servicing the UE sessions that indicates that the SGW should direct traffic previously bound for the second PDN-GW to the first PDN-GW.

Mobile gateways in pool for session resilience

A node () for a mobile network (), arranged to forward control plane signaling to and from an end user () in the system () to other nodes in the system () and also being arranged to keep track of a state of the end user (). The node () is arranged to use a so called VRRP protocol, Virtual Router Redundancy Protocol to monitor the function of a second node () in the system, a so called 'peer node' to the node () itself and to have its own function be monitored by a VRRP of the peer node (). The node () is also arranged to use a second protocol for transferring information on a state of the end user () to the peer node. A node () for receiving such information is also disclosed.

Node with an improved back up protocol

Growing community of inventors

Bohus, Sweden

Hans-Åke Lund