Abstract: The invention relates to assigning a beam pattern with null-steering beamforming from a first radio network node. A method includes determining a direction to a neighbouring second radio network node, determining an indication on traffic load for the second radio network node, and determining, from the direction and traffic load, a direction for a null of the null-steering beamforming. A computer program and a radio network node are also disclosed.

Abstract: Methods, apparatus and non-transitory machine-readable mediums are provided for wireless communication in communication networks enabled for wireless light communication. In one embodiment, a method is performed in a node of a communication network. The method enables data communication to be established between a first wireless device and the communication network upon a wireless Light Communication (LC) link between the first wireless device and an LC-enabled Access Point (AP) of the communication network becoming unavailable. The method comprises: identifying a second wireless device for relaying data between the first wireless device and the communication network via a first communication link between the first wireless device and the second wireless device and a second communication link between the second wireless device and an AP of the communication network associated with the second wireless device.

Abstract: Methods, apparatus and non-transitory machine-readable mediums are provided for wireless communication in communication networks comprising a wireless device, a radio access network node and a wireless light communication network node. In one embodiment, a method is performed by a node (102, 104, 120) of a wireless communication network (100), the wireless communication network comprising a wireless device (104), a radio access network node (102) and one or more wireless light communication (LC) network nodes (106). At least one of the wireless device and the radio access network node comprise a plurality of antenna elements configurable to provide a transmit or receive beam (110, 112) for communication with the other of the wireless device and the radio access network node.

Abstract: A method of a first access point and an access point arranged to provide wireless communication access for a wireless communication system are disclosed.

Abstract: A wireless-local area network access point (101, 102; 800; 1100) sends at least one wake-up packet for activating broadcasting devices (21, 22, 23, 24) in vicinity of the wireless-local area network access point (101, 102; 800; 1100). In response to the at least one wake-up packet, the wireless-local area network access point (101, 102; 800; 1100) receives responses from the broadcasting devices (21, 22, 23, 24). Each response comprises an identifier of the broadcasting device (21, 22, 23, 24) sending the response. The at least one wake-up packet coordinates the sending of the responses by the broadcasting devices (21, 22, 23, 24) with respect to each other.

Abstract: In one aspect, a transmitting device may frequency-division multiplex a wake-up signature (WUS) targeted to a wake-up receiver (WUR) of a receiving device with user data targeted to a main transceiver of each of one or more other receiving devices into an output signal. The output signal is then transmitted. A receiving device having a WUR and a main transceiver of the receiving device detects, at the WUR, a WUS targeted for the WUR in a received signal. The WUS is frequency-division multiplexed with user data for one or more other receiving devices in the received signal. The receiving device wakes up the main transceiver in response to the detecting.

Abstract: A packet format is disclosed for transmission of data packets over a communication channel, wherein transmission of one of the data packets utilizes a frequency bandwidth, and wherein the frequency bandwidth is dynamically variable between data packets. The packet format defines a frequency bandwidth detection field, wherein the frequency bandwidth detection field of a data packet has a first field content or a second field content, and wherein corresponding parts of the first and second field contents are orthogonal to each other. The first field content is indicative of that transmission of the data packet utilizes a first frequency bandwidth and the second field content is indicative of that transmission of the data packet utilizes a frequency bandwidth which is larger than the first frequency bandwidth. Corresponding methods and apparatuses for transmission/reception of data packets are also disclosed.

Abstract: In one example aspect, a method of transmitting signals is provided. The method comprises transmitting a first multi-carrier on-off keyed signal comprising a plurality of on periods and a plurality of off periods. Transmitting the first signal in each on period comprises, for each subcarrier of a plurality of subcarriers, transmitting, from each antenna of a plurality of antennas, a frequency domain symbol associated with that subcarrier phase shifted by a respective factor of a set of factors associated with that subcarrier, wherein the set of factors associated with that subcarrier is different from the set of factors associated with at least one other subcarrier of the plurality of subcarriers.

Abstract: A method of signalling in a Wireless Local Area Network, WLAN, includes transmitting a signal having a physical layer data unit via a wireless channel of the WLAN using plural subcarriers spaced across plural symbols, the physical layer data unit having a data packet and a preamble, wherein the preamble has a synchronisation part having a channel estimation part. The channel estimation part has N training symbols, where N is an integer greater than 1, the N training symbols have synchronisation information for synchronising a second wireless device with the first wireless device, the synchronisation information having an offset value, and synchronisation information transmitted in second and subsequent training symbols is transmitted using offset subcarriers, the offset subcarriers being frequency offset with respect to reference subcarriers used to transmit synchronisation information in a first training symbol, the frequency offset being equal to the offset value.

Abstract: A method for a wireless transmitter is disclosed. The method comprises transmitting a wake-up signal over a frequency range during a time interval by transmitting a first signal part over a first frequency interval within the frequency range during the time interval and transmitting a second signal part over a second frequency interval within the frequency range during the time interval. The first and second frequency intervals are non-overlapping. The first signal part has a first auto-correlation value, and the second signal part is specifically constructed to provide a second autocorrelation value of the signal comprising the first and second signal parts which is lower than the first auto-correlation value. The invention to solve the problem of false detection of an MC-OOK modulated wake-up signal in an IEEE 802.11 system using OFDM.

Abstract: A method is performed by a wireless transmitting device for a communication network. The communication network implements a standard in which transmitting devices contend for access to a wireless transmission medium, a transmitting device being permitted to transmit using the wireless transmission medium for a window of time upon winning contention. The method includes initiating a first, initial transmission to one or more wireless receiving devices in the window of time, the first transmission including a first preamble; and, subsequent to the first transmission, initiating a second transmission to one or more wireless receiving devices in the window of time, the second transmission including a second preamble which is shorter than the first preamble, or including no preamble.

Abstract: A method for a wake-up transmitter comprises generating a wakeup signal (WUS) from a digital WUS sequence having an information symbol rate and a corresponding information symbol bandwidth, and transmitting the WUS over a frequency range having a signal bandwidth, wherein the signal bandwidth is larger than twice the information symbol rate, and wherein any frequency interval comprised in the frequency range conveys the digital WUS sequence when a width of the frequency interval is at least the information symbol bandwidth. A corresponding method for a wake-up receiver comprises receiving the WUS over the frequency range, and filtering the received WUS through a filter having a filter bandwidth for passing the information symbol bandwidth of the received WUS. Corresponding apparatuses, wake-up transmitter, wake-up receiver, communication device and computer program product are also disclosed.

Abstract: A method for a primary wireless transmitter is disclosed. The primary wireless transmitter is configured to participate in transmission to a wireless receiver using spatial multiplexing in coordination with one or more secondary wireless transmitters. The method comprises assigning—from a collection of available channel sounding resources—respective channel sounding resources to the primary wireless transmitter and to the one or more secondary wireless transmitters, wherein each available channel sounding resource is assigned to at most one of the wireless transmitters. Each assigned respective channel sounding resource is for transmission of a respective non-spatial-multiplexed first channel sounding signal, and the first channel sounding signals are for phase tracking of signals transmitted by the primary wireless transmitter and/or for phase tracking of signals transmitted by the one or more secondary wireless transmitters.

Abstract: A method is performed by a network node of a communication network. The communication network comprises a plurality of coordinated radio access network nodes for transmitting multiple streams of data to a wireless device in a given time resource. The method comprises: causing transmission, to the wireless device, of an indication that the wireless device should perform multiple separate phase-tracking processes on the signals received from the plurality of coordinated radio access network nodes in the given time resource.

Abstract: 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.

Abstract: A network node and a method of transmitting control information to a wireless device performed by the network node. The method includes determining a wake-up signal, WUS, transmission robustness goal, determining a link quality between the network node and the wireless device, selecting a WUS transmission mode based on the robustness goal and the link quality, applying the selected WUS transmission mode such that a transmitted WUS enables the wireless device to wake up to receive control information, and transmitting the control information to the wireless device.

Abstract: A radio receiver comprises a local oscillator arrangement and a controller. The local oscillator arrangement is arranged to provide a signal for down-conversion of radio frequency signal to an intermediate frequency or a baseband frequency in the radio receiver, and the local oscillator arrangement is capable of selectably providing multiple frequency generation qualities. The controller is arranged to estimate a tolerable frequency generation quality for the current operation of the radio receiver or determine whether the current operation of the radio receiver is satisfactory in sense of a currently provided frequency generation quality, and based on the estimation or determination adjust frequency generation quality of the local oscillator arrangement by selecting one of the multiple frequency generation qualities. A radio arrangement, a method and a computer program are also disclosed.

Abstract: A method is disclosed for a wireless transceiver comprising a plurality of transceiver antenna elements and configured to operate in a communication network. The method comprises dynamically assigning (from the plurality of transceiver antenna elements) a first set of transceiver antenna elements allocated for channel sensing and a second set of transceiver antenna elements allocated for communication, performing channel sensing using the first set of transceiver antenna elements, and operating the wireless transceiver based on a result of the performed channel sensing.

Abstract: A technique for radio transmitting data is described. As to a method aspect of the technique data to be transmitted to a receiver is represented by at least two partial modulation symbols. Each of the at least two partial modulation symbols is associated to a different layer of the radio transmission to the receiver. A modulation symbol is generated by combining the at least two partial modulation symbols at different power levels according to the associated layer. The modulation symbol is transmitted to the receiver.

Abstract: A method of establishing connection between a first node in a wireless network and a second node in said wireless network, wherein each of said first and second nodes comprise a primary radio receiver and a wake up receiver, each of said nodes comprising a Radio Frequency, RF, switch, arranged to connect one of said primary or secondary radios to a radio antenna, said method comprising the steps of transmitting, by said first node, to a wake-up receiver of a second radio node, a wake-up signal that indicates a frequency channel on which the second radio node is to transmit a response, receiving, by said first node, in response to transmitting said wake-up signal, response from said second radio node on the frequency channel indicated, and establishing, by said first node, a connection between said first and second nodes in order to transfer data between said first and second nodes. The present disclosure also relates to corresponding mesh nodes and a computer program product.