Telefonaktiebolaget Lm Ericsson (publ)

Per Elmdahl

Thomas Rimhagen

Wei Shen

Jingcheng Zhang

Per Skillermark

Fredrik Gunnarsson

Robert Petersen

Andreas Olsson

Pål Frenger

Karl Norrman

Angelo Centonza

Pontus Wallentin

Johan Moe

András Rácz

Christian Skärby

Rasmus Axén

Piergiuseppe Di Marco

Samuel Axelsson

Jan Hederen

Roman Chirikov

Ulf Hubinette

Ove Linnell

Linnea Faxen

Ingrid Norstrand

Rasmus AXÉN

Christian SKÄRBY

A method of enabling a publisher mesh node to update a number of hops that is to be used for communication between said publisher mesh node and a subscriber mesh node in a wireless mesh network, wherein said method comprises the steps of periodically receiving, by said subscriber mesh node, broadcasted messages from said publisher mesh node, wherein said broadcasted messages comprise a number of hops that said broadcasted messages may traverse in said mesh network, determining, by said subscriber mesh node, that one or more periodically broadcasted messages have not been received, transmitting, by said subscriber mesh node in reply to said determination that one or more periodically broadcasted messages have not been received, a probe message to said publisher mesh node, wherein said probe message comprises a number of hops corresponding to a periodically broadcasted message that was received by said subscriber mesh node.

Method for updating a number of hops that is to be used for communication between a publisher mesh node and a subscriber mesh node in a wireless mesh network

Embodiments include methods for a gateway device to selectively forward messages in a wireless mesh network. Such methods include receiving, over one of a plurality of network interfaces of the gateway device, a message published to a group address or a virtual address and retrieving, from a database accessible by the gateway device, unicast addresses of all communication devices identified by the group address or the virtual address. Such methods include, based on determining that all communication devices addressed by the retrieved unicast addresses are serviced by the gateway device, sending the received message on all network interfaces that correspond to the communication devices addressed by the retrieved unicast addresses; and based on determining that not all communication devices addressed by the retrieved unicast addresses are serviced by the gateway device, sending the received message on all network interfaces except for the network interface over which the message was received.

Method of and devices for supporting selective forwarding of messages in a network of communicatively coupled communication devices

An antenna system () comprises a Centralized Processing Unit (); at least two antenna units () connected to the CPU () by cables. Each antenna unit () comprises at least one connector; one or more antenna elements () and one or more 5 Antenna Processing Units () connected to the one or more antenna elements (). The one or more antenna processing units () are connected to a data bus connected to the at least one connector.

Antenna system for use in distributed massive MIMO networks

Embodiments herein relate to e.g. a method performed by a network node () for handling communication of data in a Bluetooth Low Energy (BLE) mesh network (). The network node obtains a neighbor table, wherein the neighbor table is based on messages received from different network nodes; and selects an association between network nodes in the BLE mesh network () taking the neighbor table into account.

Handling communication of data in a bluetooth low energy (BLE), mesh network

A gateway device and a configuration client for supporting selective forwarding of messages published to a group address or a virtual address in a wireless mesh network of communicatively coupled communication devices, such as a Bluetooth Mesh system. The configuration client maintains a mapping between unicast addresses of communication devices and group and virtual addresses in the network. The gateway device receives, from the configuration client, unicast addresses of those communication devices collectively identified by the group or virtual address in a received message. When the retrieved unicast addresses are all serviced by the gateway device, the message is transmitted by the gateway device on all interfaces corresponding to the communication devices addressed by the retrieved unicast addresses. When the retrieved unicast addresses are not all serviced by the gateway device, the message is transmitted by the gateway device on all except one of the interfaces.

A method of sharing an established connection between a primary device in a network and one of a plurality of secondary devices. The method comprising the steps of receiving from an unconnected secondary device said plurality of secondary devices, an advertising packet for identifying said unconnected secondary device, sending, to said unconnected secondary device, a connection request based on said received advertising packet for establishing a connection between said unconnected secondary device and said primary device, said connection being shared among said unconnected secondary device and said one of said plurality of secondary devices, and transmitting, to secondary devices sharing an established connection, connection parameters, wherein said connection parameters define a time shared multiplexing scheme thereby facilitating sharing of said established connection. A complementary method and device for performing a method according to the present disclosure are also presented herein.

Method and device for sharing an established connection between a primary device and one of a plurality of secondary devices in a network

A gateway device and a configuration client for supporting selective forwarding of messages published to a group address or a virtual address in a wireless mesh network of communicatively coupled communication devices, such as a Bluetooth Mesh system. The configuration client maintains a mapping between unicast addresses of communication devices and group and virtual addresses in the network. At receipt of a message including a group or virtual address, the gateway device retrieves, from the configuration client, the unicast addresses of those communication devices collectively identified by the group or virtual address in the received message. If the retrieved unicast addresses are all serviced by the gateway device, the message is transmitted by the gateway device on all interfaces corresponding to the communication devices addressed by the retrieved unicast addresses.

Method of establishing a route between a Route Originator, RO, mesh node and a Route Destination, RD, mesh node in a mesh network, said mesh network comprising a plurality of mesh nodes, said method comprising the steps of assembling a Route Request, RREQ, message, broadcasting said assembled RREQ message in said mesh network, receiving, by said RD mesh node, via any of said plurality of mesh nodes, said RREQ message, and transmitting, by said RD mesh node, a Route Reply, RREP, message towards said RO mesh node, and receiving, by said RO mesh node, via any of said plurality of mesh nodes, said RREP message thereby establishing said route between said RO mesh node and said RD mesh node, wherein an Route Sequence Number is used, which is a number specific for a pair of RO mesh node and RD mesh node.

Method, devices and a wireless mesh network for establishing a route between a route originator, RO, mesh node and a route destination, RD, mesh node in a mesh network

The present disclosure relates to methods and arrangements in a private address resolving node of a personal area network deploying Bluetooth low energy, BLE and in particular to methods and arrangements for proactively resolving periodically updated private addresses. When performed in a private address resolving node of a personal area network deploying Bluetooth low energy, BLE, a method comprises resolving a periodically updated private address of a private address generating node connected to the private address resolving node. The private address is used in addressing messages from the private address resolving node to the private address generating nodes. The method comprises receiving (S), from a private address generating node in the personal area network, an Identity Resolving Key, IRK, the IRK being received over an encrypted link established between the private address resolving node and the private address generating node and receiving (S), from the private address generating node, private address update information defining when and how to update the private address of the private address generating node. Based on the received IRK and the received private address update information, an updated private address to be used when addressing a next message to the private address generating node is determined (S).

Bluetooth low energy address resolving

A method in a node of a mesh network comprises receiving a plurality of neighbor count values, each neighbor count value relating to the number of neighbors associated with a particular neighbor of the node, and controlling the transmission of a beacon message based on the received neighbor count values. The method in a node of a mesh network may comprise determining a neighbor count value, the neighbor count value comprising the number of neighbor nodes associated with the node, and distributing the neighbor count value to the neighbor nodes of the node.

Apparatus and method for transmitting beacon messages in a mesh network

An advertising wireless device () broadcasts () an advertising message over a wireless communication link (). The advertising wireless device receives (), from an advertisement responding device (-), a request message that was sent by the advertisement responding device (-) at a certain point in time in response to the broadcasted advertising message. Said certain point in time being randomized within a listening time period during which the advertising wireless device () listens for a response to the broadcasted advertising message and is able to receive the request message.

Methods and arrangements for communication between advertising and advertisement responding wireless devices

Provided are methods for handling reports on lost connections in a terminal device which is capable of being in communication connection with a plurality of network access nodes, wherein the terminal device generates, after having lost connection to a first network access node, a report on the loss of connection. The terminal device stores the report when the terminal device is reconnected to a third network access node comprising one of a different access technology, a different network, and a different network operator than the first network access node to which the terminal device was connected before the loss of connection. The terminal device also sends, upon or after reconnecting with one of the first and a second network access node, sending the report to one of the first and second network access nodes.

User equipment reporting of connection loss

A method and network node () for supporting evaluation of usage of a radio network feature in radio communication between wireless devices () and the network node. The network node () retrieves (4:1) statistical information regarding the usage of the radio network feature, and reports (4:5) the statistical information to an Operation and Maintenance, O&M, node (). The O&M node then uses (4:6) the statistical information for evaluating how measured performance (4:3) of the radio network is related to the usage of the radio network feature.

Evaluation of radio network feature

A cellular radio communications network includes base stations that provide radio communication service to user equipments (UEs) in respective cell service areas. A node receives or determines a usage fraction or percentage of protected subframes and converts the fraction or percentage of protected subframes into one or more protected subframe patterns for an aggressor base station to not transmit on or to transmit at reduced power, in one example, an operations and maintenance (OaM) node configures one or more interfered base stations to use the one or more protected subframe patterns, in another example, the node is a base station.

Growing community of inventors

Linköping, Sweden

Per Elmdahl