Telefonaktiebolaget Lm Ericsson (publ)

Cisco Technology, Inc.

Transmode Systems Ab

Proximion Fiber Systems Ab

True Heading Ab

Appear Networks Systems Ab

Cisco Systems (sweden) Aktiebolag

True Heading Patent Ab

Bengt Johansson

Sten Pettersson

Tord K Nilsson

James Kempf

Jiangtao Zhang

Dag Bonnedal

Lars Egnell

Per Andersson

Tarik Hammam

Anders Franzen

Jon Maloy

Richard Tremblay

Abdallah Chatila

Harald Lüning

Lasse Olsson

Gunnar S Forsberg

Neda Beheshti-Zavareh

Nigel Robert Wood

Magnus &Ouml;berg

Fredrik Lindgren

Ola Hulten

Robert Batchellor

Bo Lagerstr&ouml;m

Harald Luning

Ying Zhang

Magnus Norberg Olsson

Stefano Piciaccia

Jian Chen

Pontus Axelsson

Bengt Sahlgren

Magnus G Oberg

Raoul Stubbe

Mikael Bergman

Bo Gustaf Granstam

Sten Helmfrid

Mats Plantare

Jan Skagerlund

Nils Willart

Anders Bergström

Bo E Lagerstrom

Magnus Svevar

Johan Pejnefors

Xavier Aubry

Lars Nordgren

Fredrik Liden

Tomas Askinger

Fredrik Linden

Mangus Sundelin

Ola Wikström

Fransisco Martinez

Anders FRANZÈN

Sten Rune Pettersson

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

An optical system is provided comprising a first node and a channel drop add device. The first node is configured to transmit data onto an optical fiber in a first line direction. The channel drop add device () is adapted to receive and add channels onto the optical fiber thereby transmitting the data into the first and a second line direction. The network further comprises a second node configured to form a transmitter/receiver function. The second node is configured to receive data on said optical fiber from said first and second line directions. Further, the second node is adapted to synchronize received data from said first and second line directions by delaying the data signals seeing the shortest delay, by a delay device.

Method and optical network for front haul protection

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

A method for determining the time of receipt by a radio receiver of a binary coded radio message emitted by a sender. A radio signal containing the message is received by the receiver. An analog electrical signal is generated, sampled and optionally demodulated. The data content of the message is determined based upon the demodulated signal as a stream of data bits. The stream of data bits comprises a predetermined signal element whose time of receipt is determined. A digitally stored, constructed comparison signal is created based upon the stream of data bits. The constructed comparison signal is constructed to correspond to the sampled signal, in that a time variable which maximizes a correlation between the constructed comparison signal and the sampled signal is determined, and in that the time variable is then used to correct the time determination of the receipt of the predetermined signal element.

Method for determining the timing of the receipt of a radio message

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.

Growing community of inventors

Västra Frölunda, Sweden

Bengt Johansson