Telefonaktiebolaget Lm Ericsson (publ)

Sten Pettersson

Bengt Johansson

Tord K Nilsson

James Kempf

Jiangtao Zhang

Per Andersson

Tarik Hammam

Anders Franzen

Jon Maloy

Richard Tremblay

Abdallah Chatila

Harald Lüning

Lasse Olsson

Neda Beheshti-Zavareh

Lars-Erik Helander

Harald Luning

Ying Zhang

Hans Bertil Rönneke

Jian Chen

Niklas Lundin

Anders Henriksson

Staffan Bonnier

Anders Åhlén

Anders FRANZÈN

Bengt E Johansson

The present disclosure relates to methods and devices, of activating lawful interception. According to the present disclosure, a gateway comprises a controller for controlling, using a flow control protocol, the flow of packets through a switch controlled by the gateway. The switch receives (S), from the controller, a lawful interception activation request, comprising a target identity; activates (S), in response to said request, lawful interception on a target identified by the target identity; duplicates (S), in the switch, packets targeting the target; encapsulates (S) the duplicated packets with an additional header; and forwards (S) duplicates from the switch directly to the lawful interception service provider entity () for further distribution to a Lawful interception Agency.

Method and switch for lawful interception

An apparatus comprising a processor and interface for receiving and transmitting packets to external units. The interface comprises a first layer filter and first packet queues; the processor comprises a kernel, second layer filter, second packet queues and applications. For a packet received by the unit, the unit delivers parts the packet to the first layer filter; applies first level filtering; performs first sorting and delivers parts of the packet according to first level filtering rules and delivers parts of the packet to one of the first packet queues in dependence on the first sorting; the unit further being adapted for delivering the packet to second layer filter from kernel or from first packet queues; applying second level filtering; performing second sorting of parts of the packet and delivering parts of the packet to one of the applications in dependence on the second sorting.

Content based overload protection

The embodiments herein relate to a method in a first network unit () for handling states in a network (). The first network unit () is adapted to supervise power in the network (). The first network unit () receives a work-load report from one or more of a plurality of second network units (). The second network units () consume power. When the second network units () are awake and the workload is below a threshold, the first network unit () transmits a sleep request to at least one of the second network units () to change from awake to sleep. When the plurality of second network units () are asleep and the workload has reached or is above the threshold, the first network unit () transmits a wakeup request to at least one of the second network units () to change from sleep to awake.

Method and network units for handling states

A method for packet classification. In some embodiments, the method includes instantiating a first machine; allocating a first SC to the first machine, the first SC being configured to classify a packet based on information contained in a field of a header included in the packet; instantiating a second machine; allocating a second SC to the second machine, the second SC being configured to classify a packet based on information contained in a field of a header included in the packet; monitoring the first machine to detect if the first machine is in an overload state; and in response to detecting that the first machine is in an overload state, instantiating a third machine and allocating a third SC to the third machine, the third SC being configured to classify a packet based on information contained in a field of a header included in the packet.

Systems and methods for packet classification

Unit (, eNB, SGW, PGW) comprising a processor () and interface means () adapted for receiving and transmitting packets () to external units (, eNB, SGW, PGW) over a communication interface. The interface means () comprises a first layer filtering means () operating according to first level filtering rules () and first packet queues (Q1_1-Q1_n); while the processor () comprises at least one kernel (KL_1-KL_n), second layer filtering means () operating according to second level filtering rules (), second packet queues and applications. For a given packet received on the communication interface, the unit being adapted for &#x2014;delivering () parts the packet to the first layer filtering means (); &#x2014;applying first level filtering (); &#x2014;performing first sorting () and delivering parts of the packet according to the first level filtering rules () and delivering parts of the packet to one of the first packet queues (Q1_1-Q1_n) in dependence on the first sorting; the unit further being adapted for &#x2014;delivering () the packet to second layer filtering means () from kernel or from first packet queues; &#x2014;applying () second level filtering; &#x2014;performing second sorting () of parts of the packet according to the second level filtering rules () and &#x2014;delivering () parts of the packet to one of the applications in dependence on the second sorting (AP_1-AP_n).

Systems, methods, and computer program products for a software build and load process using a compilation and deployment service. A method for a software build and load process using a compilation and deployment service includes receiving, at the service, new software. The method further includes comparing, at the service, the received new software with data in a database, wherein the data comprises active software. The method further includes merging, at the service said new software and active software into one or more load modules based on the comparison. The method further includes deploying the one or more load modules to one or more target processing units.

Systems, methods, and computer program products for a software build and load process using a compilation and deployment service

A method implements a control plane of an evolved packet core (EPC) of a long term evolution (LTE) network in a cloud computing system. A cloud manager monitors resource utilization of each control plane module and the control plane traffic handled by each control plane module. The cloud manager detects a threshold level of resource utilization or traffic load for one of the plurality of control plane modules of the EPC. A new control plane module is initialized as a separate virtual machine by the cloud manager in response to detecting the threshold level. The new control plane module signals the plurality of network elements in the data plane to establish flow rules and actions to establish differential routing of flows in the data plane using the control protocol, wherein flow matches are encoded using an extensible match structure in which the flow match is encoded as a type-length-value (TLV).

Implementing EPC in a cloud computer with openflow data plane

The embodiments herein relate to a method in a network node () for handling TCP traffic in a packet switched network (). The network node () receives TCP traffic from a mobile node (). The TCP traffic comprises an original window size. The network node () replaces the original window size with an optimized window size when the network node () comprises information about dropped TCP traffic and when the original window size is larger than the optimized window size. The network node () sends the TCP traffic comprising the optimized window size to a correspondent node () in the packet switched network () indicating an amount of TCP traffic receivable by the mobile node ().

Method and network node for handling TCP traffic

A control plane device in a cloud computing system executes a plurality of virtual machines for implementing network function virtualization (NFV). The control plane device is operable to manage implementation of a general packet radio service (GPRS) tunnel protocol (GTP) in a packet core (PC) of a third generation (3G) network having a split architecture where a control plane of the PC of the 3G network is in the cloud computing system. The control plane communicates with a data plane of the PC through a control plane protocol. The data plane is implemented in a plurality of network devices of the 3G network. The control plane device and the plurality of virtual machines are operable to communicate with other control plane devices in the cloud computing system and with the plurality of network devices of the data plane.

Implementing a 3G packet core in a cloud computer with openflow data and control planes

A method for implementing a control plane of an evolved packet core (EPC) of a third generation partnership project (3GPP) long term evolution (LTE) network in a cloud computing system, including initializing the plurality of control plane modules of the EPC within the controller, each control plane module in the plurality of control plane modules initialized as a separate virtual machine by the cloud manager; monitoring resource utilization of each control plane module and the control plane traffic handled by each control plane module; detecting a threshold level of resource utilization or traffic load for one of the plurality of control plane modules of the EPC; and initializing a new control plane module as a separate virtual machine by the cloud manager in response to detecting the threshold level, the new control plane module to share the load of the one of the plurality of control plane modules.

Implementing EPC in a cloud computer with OpenFlow data plane

A method for implementing a general packet radio service (GPRS) tunnel protocol (GTP) in a packet core (PC) of a third generation (3G) network having a split architecture where a control plane of the PC of the 3G network is in a cloud computing system, the cloud computing system including a controller, the controller to execute a plurality of control plane modules, the control plane to communicate with the data plane of the PC through a control plane protocol, the data plane implemented in a plurality of network elements of the 3G network by configuring switches implementing a data plane of the SGSN and GGSN and intermediate switches to establish a first and second GTP tunnel endpoint.

A pool of functional server nodes in a packet data network, and method of transferring a given mobile terminal from a current functional server node to a target functional server node in the pool. An interface enables each functional server node to control any, or a number of, radio network control nodes. When a transfer is desired, the pool selects the target functional server node and initiates a transfer of control responsibility for the given mobile terminal's connections from the current functional server node to the selected target functional server node. The control responsibility is then transferred to the selected target functional server node without interrupting service to the given mobile terminal.

Pool of functional server nodes in a packet data network and method of transferring a mobile terminal between the server nodes in the pool

An end user local network and a packet data communication network are interconnected by an arrangement including a packet data network backbone, at least one packet data node with a serving functionality for handling packet data communication, and a gateway functionality for providing communication with external network(s). At least one virtual distributed node provides a gateway functionality and includes an interworking node device including a converting device for converting between a local network and user communication protocol including a user level data packet format (ULC) and an internal packet data communication protocol using an internal packet data format (ICP). The virtual distributed node includes a management functionality (MA) for managing the interworking node device. The management functionality is executed in a packet data node, and the packet data network backbone is used for communication.

Growing community of inventors

Torslanda, Sweden

Sten Pettersson