Telefonaktiebolaget Lm Ericsson (publ)

Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Optis Wireless Technology, LLC

Per Skillermark

Pontus Arvidson

Magnus K Almgren

Bo Hagerman

Piergiuseppe Di Marco

Thomas Rimhagen

David Astely

Chrysostomos Koutsimanis

Per Elmdahl

Erik Bengt Dahlman

Gabor Fodor

Per Burström

Roman Chirikov

Stefan Parkvall

Yi-Pin Eric Wang

Leif Wilhelmsson

Ylva Jading

Erik Westerberg

Peter De Bruin

Jingcheng Zhang

Henrik Nyberg

SaiRamesh Nammi

Hannes Ekström

Wei Shen

Muhammad Ali Kazmi

Jung-Fu Cheng

Dennis Hui

Arne Simonsson

Tobias Tynderfeldt

Anders Furuskär

Christian Hoymann

Qingyu Miao

Bo Göransson

Zhang Zhang

Mats Näslund

Jan Christoffersson

Jonas Fröberg Olsson

Erik G Larsson

Lei Wan

Niklas Johansson

Magnus Åström

Stefan Bruhn

Magnus Norberg Olsson

Johan Axnäs

Håkan Andersson

Sara Sandberg

Guido Roland Hiertz

Kai-Erik Sunell

Göran Selander

Jingyi Liao

Magnus Lundevall

Rocco Di Taranto

Mikael Fallgren

Johan Nyström

Alireza Nejatian

Olle Rosin

Osama Al-Saadeh

Karin Lagergren

Govardhan Madhugiri

Paolo Guidotti

Edas Wong

Govardhan Madhugiri Dwarakinath

Anders Näsman

Per BURSTRÖM

Govardhan Dwarakinath Madhugiri

A method of supporting establishment of a path from a source node to a destination node in wireless mesh network, said path comprising at least one intermediate node, said method comprising the steps of receiving, by an intermediate node, a synchronous notification message, from a neighbouring node, for synchronizing said intermediary node with said neighbouring node, and establishing, by said intermediate node, in response to said receipt of said synchronous notification message, a reciprocal path between said intermediate node and said neighbouring node, wherein said reciprocal path is used in a path between said source node and said destination node. A corresponding node device arranged for performing the method is also presented herein.

Method of, and a node device for, supporting establishment of a path from a source node to a destination node in wireless mesh network

A method and device for path discovery in a Bluetooth® mesh network.

Path discovery procedure for a bluetooth mesh network

A method performed by a low-power node (LPN) in a wireless mesh network, wherein the LPN comprises a main receiver and a wakeup receiver, and wherein the method comprises: performing the following first operations in response to an event trigger: activating the wakeup receiver while maintaining the main receiver in an inactive state, and sending a polling message to a second node in the wireless mesh network; for a predetermined duration, determining whether a wakeup signal has been received from the second node via the wakeup receiver; and performing a plurality of second operations based on determining that the wakeup signal has been received, the second operations including: activating the main receiver, and receiving, from the second node via the main receiver, a response to the polling message.

Wakeup radio for low power nodes in Bluetooth

A method of waking up a mesh node in a wireless mesh network, wherein said mesh node comprises a main receiver and a wakeup receiver, and wherein said method comprises the steps of receiving, by said wakeup receiver of said mesh node, a wake up signal message, wherein said wake up signal message comprises context information which is related to a path between a source mesh node and a destination mesh node corresponding to said wake up signal message, determining, by said wakeup receiver of said mesh node, that said context information is applicable for said mesh node, activating, by said wakeup receiver of said mesh node, said main receiver of said mesh node for subsequently receiving a data message.

Method of waking up a mesh node in a wireless mesh network as well as a related mesh node and a computer program product

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

A method and apparatus for relaying messages in a mesh network.

Distributed traffic control in flooding mesh networks

A gateway (), arranged for providing cloud connectivity to a network of communicatively interconnected network nodes. The gateway () comprises a backend function ()and a plurality of physical frontend devices (), for deployment in the network. The frontend devices () communicatively connect()to the backend function () for exchanging messages between a network node and the backend function (). The backend function () is common to the plurality of frontend devices () and arranged in a at least one server of a plurality of operatively connected servers, that may form part of the cloud, thereby providing for 'cloud processing' or 'virtual processing' of the messages for exchange thereof with the cloud. The physical frontend devices () may be designed to comprise transceiver functionality.

Gateway, a frontend device, a method and a computer readable storage medium for providing cloud connectivity to a network of communicatively interconnected network nodes

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 by an end node () operating in a Mesh communications network () is described herein. The end node () monitors (), a first channel, for transmissions of first information from one or more relay nodes () operating in the network. The first information indicates transmission, from the one or more relay nodes (), of second information on a second channel associated with the first channel. The second information indicates transmission, from the one or more relay nodes (), of third information on a third channel. The third channel is associated with the second channel and the first channel. The end node () then determines (), based on the second information, time periods during which no transmission of the third information is predicted to be performed by the one or more relay nodes () on the third channel. The end node () then schedules () a transmission of fourth information in a fourth channel during the determined time periods.

End node, relay node, and methods performed therein for handling transmission of information

A method performed by a station for enabling an Uplink, UL, transmission to an access point in a wireless communications network is provided. The station determines a UL transmission rank for an UL transmission to the access point. Then, the station transmits, to the access point, a message on a contention-based transmission resource in the wireless communications network comprising information indicating the determined UL transmission rank. A station for enabling an UL transmission to an access point in a wireless communications network is also provided. Furthermore, an access point and a method performed therein for enabling an UL transmission from a station in a wireless communications network are also provided.

Uplink transmissions in a wireless communications network

A node operable in a mesh communication network and a method performed thereby for routing a received packet towards a destination are provided. The method includes receiving a packet addressed to a destination node in the mesh network, the packet including information related to address of source node, last hop address, address of destination node, and a hop counter. The method further includes determining whether the destination address is included in a routing table of the node in the mesh communication network. When the destination address is included in a routing table, the received packet is forwarded according to the routing table; or when the destination address is not included in a routing table, the received packet is flooded by broadcasting it in the mesh communication network.

Node and a method performed by the node operable in a mesh communication network for routing a received packet towards a destination

There is provided a method and corresponding arrangements and network nodes/devices for enabling packet forwarding in a wireless mesh network comprising a plurality of nodes. Basically, the method comprises conforming, for transmission of the same network layer information from at least two different nodes, the corresponding over-the-air packets to be node-independent, and scheduling the conformed over-the-air packets for synchronized and simultaneous transmission from the at least two different nodes.

Packet forwarding in a wireless mesh network

Embodiments herein relate to a method performed by a radio network node () for handling communication of data to a wireless device () in a wireless communication network (). The radio network node () determines to transmit data associated with a first radio access technology, RAT, using a second RAT when a criterion is fulfilled, and triggers a transmission of the data to the wireless device () using the second RAT.

Radio network node, wireless device and methods performed therein

A node () is configured for use in a communication network. The node () is configured to obtain a message with a source address and a destination address. The node () is also configured to determine whether the message is a type of message that is sent in response to a different message routed from the destination address to the source address, and whether a forward route () from the destination address to the source address has been established. The node () is also configured to selectively transmit the message on a backward route () that is the reverse of the forward route (), depending on the determining.

Routing in communication networks

Growing community of inventors

Årsta, Sweden

Per Skillermark