Abstract: In an IAB network, an IAB-node detects a deficiency or failure of one BH link. A BH RLF indication message is sent to its child IAB-nodes specifying the BAP paths that are impacted, a quality of those paths and the deficient radio link by indicating the other IAB-node sharing the link. Same message are transmitted to this sharing IAB-node, but also to the IAB-donor in order to adapt the routing configuration of the IAB-nodes to the topology. BAP packets for the impacted BAP paths are rerouted using alternative BAP paths. IAB-nodes receiving the BH RLF indication message also apply routing strategies for the impacted BAP paths, taking into account the indicated quality. A similar message is transmitted when the BH radio link experiences recovery, so that the IAB-nodes stop rerouting the BAP packets and the IAB-donor restore the original routing configuration.

Abstract: A method for processing data packets at an integrated access and backhaul, IAB, node of an IAB network comprising a plurality of IAB nodes is disclosed. The method comprises receiving a data packet including a destination address of a destination IAB node for the data packet and a path identifier identifying a routing path for the data packet to the destination IAB node; determining, based on the received data packet, whether the routing path of the received data packet includes at least one IAB node of a different IAB network; in response to determining that the routing path of the received data packet includes at least one IAB node of a different IAB network, using the path identifier of the received data packet to determine whether there is a next IAB node in the routing path for routing the data packet. When a next IAB node is determined, the data packet is routed to the next IAB node.

Abstract: In an Integrated Access and Backhaul, IAB, network, an IAB-node is configured as an initiator for performing BAP-sublayer processing to the aim of transmitting BAP packets over multiple RLC channels. BAP-sublayer processing may duplicate a received BAP packet. The same sequence number is appended to all the duplicates to allow another IAB-node terminating the duplication to recognize them. In a variant, BAP-sublayer processing may network encode one received BAP packet. Successive sequence numbers are assigned to the resulting BAP packets to allow another IAB-node terminating the network coding to recognize them. A terminator of the BAP-layer processing thus terminates the duplication by discarding all duplicates except one or network decodes received packets with successive sequence numbers. Duplication process may be nested within another duplication or within a network encoding.

Abstract: The present invention concerns a method of wireless communication between a base station and a user equipment, wherein the method comprises: transmitting, by the base station, a data radio bearer configuration; and transmitting packets according to the data radio bearer configuration between the base station and the user equipment; wherein: the data radio bearer configuration comprises a network coding configuration; and the transmitted packets are transmitted according to the network coding configuration.

Abstract: The present invention concerns a method of transmitting over a radio access network to a base station, by a network entity, a radio resource control signalling indicating the capability of a user equipment to perform network coding, wherein the method comprises: detecting by the network entity of a trigger event for signalling to the base station, the network coding capabilities of the user equipment; generating by the network entity a radio resource control signalling message comprising the user equipment network coding capabilities; and transmitting by the network entity of the generated radio resource control signalling message to the base station.

Abstract: The present invention concerns a method of wireless communication between a base station and a user equipment, wherein the method comprises: receiving a network coding control element; and controlling the network coding activation or deactivation in response to the reception of the control element.

Abstract: There is provided a method of wireless transmission of protocol data units over one or more radio link modules, the method comprising: splitting a service data unit, received from an upper layer, into a plurality of data packets; obtaining combined data packets, by applying a Network Coding to the data packets, wherein padding is added, if necessary, to the service data unit or to data packets to have data packets of equal length to which is applied the Network Coding; encapsulating the combined data packets into at least one protocol data unit, wherein each protocol data unit comprises a header and wherein the header contains a padding indication for indicating whether padding has been added or not, and transmitting the at least one protocol data unit over the one or more radio link modules.

Abstract: There are provided methods for associating an adapter controller with a device, among a plurality of devices, for instance a Power over Ethernet device or its controller, each device of the plurality being connected to a controller interconnected to other controllers by a power-over-data linear bus to which an item of power source equipment is also connected. The methods comprises an exchange of a pairing message comprising a unique identifier of the device to be paired with, wherein only said device from which is the pairing message receives power at the time of receiving the pairing message by the controller among the plurality of devices.

Abstract: A method for resetting at least one processing device in a power-over-data linear bus interconnecting a plurality of processing devices, the method including, at a first processing device of said plurality of processing devices: sending a protocol data unit comprising a prior-reset notification to all other processing devices of the plurality of processing devices, and sending a physical reset signal to all other processing devices of the plurality of processing devices, wherein the prior-reset notification is configured to prevent a processing device that receives the physical reset signal from resetting, if the protocol data unit comprising the prior-reset notification has been previously processed by the processing device.

Abstract: The invention relates to power over data cable (PoC) systems comprising power source equipment, PSE, and plural PoC devices connected to the PSE. The PoC devices can operate in various power modes including low and high power modes. A method of managing power performed by a processing device of the system upon starting-up includes: reading, in memory of the processing device, a power change record to determine if, prior to the start-up, a target PoC device was about to switch from the low power mode to the high power mode; if it was about to switch, restricting it to remain in the low power mode; otherwise, triggering the target device to switch to the high power mode. As being restricted to the low power mode, the target device can no longer cause power failures. Thus endless loops of power failures caused by one and the same device are avoided.

Abstract: There are provided methods for associating an adapter controller with a device, among a plurality of devices, for instance a Power over Ethernet device or its controller, each device of the plurality being connected to a controller interconnected to other controllers by a power-over-data linear bus to which an item of power source equipment is also connected. The methods comprises an exchange of a pairing message comprising a unique identifier of the device to be paired with, wherein only said device from which is the pairing message receives power at the time of receiving the pairing message by the controller among the plurality of devices.

Abstract: A power management module for managing power supply from a power sourcing equipment item to an associated apparatus, which includes a connexion interface suitable for connecting the power management module to the associated apparatus for estimating a power that the power management module is able to supply via the connexion interface, negotiating, based on the power estimated by the means for estimating power, the start-up of the associated apparatus in a power class, the means for negotiating comprising means for supplying power via the connexion interface, determining an updated power that the power management module is able to supply, when power is supplied to the associated apparatus by said means for supplying power, and re-negotiating the start-up of the associated apparatus based on the determined updated power.

Abstract: There is provided a controller device for controlling activation of devices interconnected by a power-over-data linear bus to which an item of power source equipment is also connected, the controller being configured to carry out the following steps: determining whether at least one of the topology or the voltage conditions on the linear bus has changed relatively to a reference configuration; selecting at least one activation mode depending on the result of the determining step; and activating each device in the linear bus according to one of the at least one selected activation modes.

Abstract: A method for resetting at least one processing device in a power-over-data linear bus interconnecting a plurality of processing devices, the method including, at a first processing device of said plurality of processing devices: sending a protocol data unit comprising a prior-reset notification to all other processing devices of the plurality of processing devices, and sending a physical reset signal to all other processing devices of the plurality of processing devices, wherein the prior-reset notification is configured to prevent a processing device that receives the physical reset signal from resetting, if the protocol data unit comprising the prior-reset notification has been previously processed by the processing device.

Abstract: A power management module for managing power supply from a power sourcing equipment item to an associated apparatus, which includes a connexion interface suitable for connecting the power management module to the associated apparatus for estimating a power that the power management module is able to supply via the connexion interface, negotiating, based on the power estimated by the means for estimating power, the start-up of the associated apparatus in a power class, the means for negotiating comprising means for supplying power via the connexion interface, determining an updated power that the power management module is able to supply, when power is supplied to the associated apparatus by said means for supplying power, and re-negotiating the start-up of the associated apparatus based on the determined updated power.

Abstract: The invention relates to power over data cable (PoC) systems comprising power source equipment, PSE, and plural PoC devices connected to the PSE. The PoC devices can operate in various power modes including low and high power modes. A method of managing power performed by a processing device of the system upon starting-up includes: reading, in memory of the processing device, a power change record to determine if, prior to the start-up, a target PoC device was about to switch from the low power mode to the high power mode; if it was about to switch, restricting it to remain in the low power mode; otherwise, triggering the target device to switch to the high power mode. As being restricted to the low power mode, the target device can no longer cause power failures. Thus endless loops of power failures caused by one and the same device are avoided.

Abstract: There is provided methods for node discovery in a network comprising the following steps: performing a first discovery process for discovering at least one first node of said network, using at least one first wireless communication parameter, adapting said at least one first wireless communication parameter, thereby obtaining at least one second wireless communication parameter coordinated with wireless communication parameters of nodes of at least one group of nodes discovered during the first discovery process, and performing a second discovery process for discovering at least one second node of said network, using said at least one second wireless communication parameter. Embodiments of the invention provide better coordination during node discovery thereby making the node discovery is thus made faster and reducing interferences between the nodes.

Abstract: The present invention relates to improving configuration of wireless communication paths between devices in a video projection system comprising multiple wireless video projectors. When an initial radio communication setup is required between a managing node, e.g. a node comprising a master projector, and a node comprising a slave projector, for example following the powering up of the video projection system, the slave node receives setup information by radio communication means according to a sweeping sequence and transmits information by projecting sub-images. Sub-images advantageously comprise information relative to settings of the master node allowing reception in the corresponding slave node of a radio signal transmitted by the master node.

Abstract: The present invention concerns a method and a device of transmitting uncompressed video streams. In particular, the method concerns the adaptation of a wireless transmission to bandwidth reduction and packet loss. There is provided a computer implemented method for sending uncompressed video data, wherein the video data comprises binary video components, the method comprising generating a plurality of SB packets from a group of video components, each SB packet being constituted by bits of the video components grouped according to their significance; determining available bandwidth for transmission and sending the most SB packets to fit the available bandwidth, beginning by the most significant ones, meaning containing the most significant bits of the video components. Accordingly, the best possible quality is obtained according to the available bandwidth.

Abstract: A method is proposed for managing communications in a wireless network in which a first communication is set up or established on a plurality of carriers between a first sender device and a receiver device, the network comprising a set of at least one second sender device for which a second communication has to be established simultaneously with said first communication.