Abstract: A method and devices for allocating frequency domain resources for wireless sensing of a radio channel associated with a sensing device. The method includes determining a sensing frequency range for the sensing device based on a frequency selectivity of the radio channel, and allocating frequency domain resources for the sensing device at least in part based on the determined sensing frequency range. The frequency selectivity may be parameterized based on one or more of: a number of propagation paths of the radio channel, a time dispersiveness of the channel, an impulse response of the channel, a power delay profile of the channel, a delay spread of the channel, a root mean square delay spread of the channel, a frequency response of the channel, and a coherence bandwidth of the channel. The sensing frequency range may includes a sensing bandwidth and/or a sensing frequency spread.

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 wireless communication device is operated to transmit information on a random access channel of a network node. Operation involves determining a first transmit power level for a transmission of the information, and selecting a first transmission time for the transmission of the information, wherein the selected first transmission time is determined by a number drawn from a first contention window, and wherein the selected first transmission time corresponds to a first amount of time delay that must elapse before transmission of the information occurs. The information is transmitted at the selected first transmission time, at the first transmit power level. When the transmitted information was not successfully received by the network node, a size of a second contention window is determined based on a size of the first contention window and on the first transmit power level.

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 is disclosed for a sensing coordination device associated with one or more wireless sensing devices comprising a first wireless sensing device. The method comprises determining a threshold value for the first wireless sensing device, wherein the threshold value is for comparison with a difference between channel estimates of wireless sensing measurements of the first wireless sensing device, and causing application of the threshold value in control of operation of the first wireless sensing device for performing wireless sensing measurements. A method for the first wireless sensing device is also disclosed.

Abstract: A wireless communication device (11) maintains, on a first channel, a radio link to a further wireless communication device (10). The wireless communication device (11) sends, to the further wireless communication device (11), an indication that the wireless communication device supports multi-link operation. Further, the wireless communication device (11) receives a request from the further wireless communication device (10). In response to the request, the wireless communication device (11) utilizes the multi-link operation to perform at least one measurement on a second channel while maintaining the radio link to the further wireless communication device (10). Further, the wireless communication device (11) sends, to the further wireless communication device, one or more measurement reports representing the at least one measurement.

Abstract: A wireless device features a low-power, limited-functionality, narrowband, homodyne wakeup receiver with a free running local oscillator. This enables a very attractive combination of low power consumption and high selectivity. The network supports these receivers by adopting a wakeup message structure that supports oscillator frequency calibration, and that tolerates loss of parts of the signal spectrum. Wakeup signals are transmitted frequently to allow the wakeup receivers (whether targeted by a wakeup signal or not) to calibrate their LO frequencies. The frequencies of the wakeup signals can be constant, or follow a hopping pattern for increased immunity to interference. The wakeup signals can use multiple carriers to increase robustness to loss of parts of the signal spectrum, particularly near the LO frequency in a homodyne receiver. The carriers use amplitude modulation (OOK), with either different or equal sequences.

Abstract: A transmitter and method therein for transmitting a signal to a receiver in a wireless communication system are disclosed. The transmitter is configured to modulate a signal using two different modulations, a combination of binary amplitude shift keying, ASK, and binary frequency shift keying, FSK, and transmit the modulated signal.

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 is disclosed for a sensing correction device. The sensing coordination device is associated with one or more sensing receiver devices and a radio access node configured for communication with one or more wireless communication devices. The method comprises selecting at least one of the sensing receiver devices in association with a time interval, instructing the selected sensing receiver devices to perform sensing measurements during the time interval, and causing transmission (during the time interval) of a communication packet between the radio access node and at least one of the wireless communication devices which differs from the selected at least one sensing receiver device. A method is also disclosed for a sensing receiver device.

Abstract: A limited-function, low-power wakeup receiver is based on frequency shift keying (FSK), avoiding the inherent problems of AM demodulation such as non-linearity of the amplitude detector. The FSK detector is easily realized in the digital domain. Due to the time discrete nature of FSK signals, the detector has a periodic response in frequency, allowing the signal to be demodulated at different offsets from the center frequency. The relaxed accuracy demands on the local oscillator frequency avoid the need for a power-hungry phase locked loop (PLL) circuit. To avoid potential loss if a signal coincides with one of the regular sensitivity nulls, the network at least occasionally transmits an FSK wakeup signal at a slightly shifted frequency, so at least one of the FSK wakeup signals will be received. Transmitting multiple frequency-shifted signals improves the likelihood of reception.

Abstract: Embodiments described herein relate to methods and apparatuses for optimizing interframe space in time division duplexing communication between a first wireless device and a second wireless device. A method in the first wireless device comprises receiving a first packet from the second wireless device; selecting an interframe space, IFS, duration from a plurality of possible IFS durations; and transmitting a second packet to the second wireless device when the selected IFS duration has elapsed after receipt of the first packet.

Abstract: A method is disclosed for transferring data symbols between a transmitter and a receiver. The method comprises specifying communication symbols through application of a transform to a representation of the data symbols, and conveying a signal indicative of the communication symbols from the transmitter to the receiver. When expressed as a transform matrix, the transform has at least the following properties: that a ratio (between number of zero-valued elements of the transform matrix and number of non-zero-valued elements of the transform matrix) equals or exceeds a sparsity threshold, and that a number of columns of the transform matrix that has a zero-valued element sum equals or exceeds an angle distortion mitigation threshold.

Abstract: Apparatuses and methods are disclosed for joint downlink/uplink (DL/UL) scheduling and parameter selection for constrained simultaneous transmit and receive (STR) access point (AP) multi-link devices (MLDs). In one embodiment, a STR capable MLD includes an AP STA. The MLD is configured to jointly schedule an uplink communication on a first link and a simultaneous downlink communication on a second link by selecting a first non-access point (non-AP) station (STA) for the uplink communication and a second non-AP STA for the simultaneous downlink communication out of a plurality of non-AP STAs, the first and second links being a STR constrained pair of links, the first link being associated with the first non-AP STA, the second link being associated with the second non-AP STA, and the first and second non-AP STAs not being affiliated with a same MLD.

Abstract: Apparatuses and methods for simultaneous transmit and receive (STR) multi-link operations (MLO) are disclosed. In one embodiment, a multi-link device (MLD) is configured to select at least one communication parameter value for a pair of radio links to enable STR on the pair of radio links between the MLD and a second MLD, the second MLD including a non-access point (non-AP) station (STA) and the selected at least one communication parameter value including a value of at least one of: at least one first communication parameter for a first link in the pair and at least one second communication parameter for a second link in the pair. In one embodiment, a MLD is configured to transmit information about a pair of radio links; and perform a multi-link operation (MLO) on the pair of radio links using at least one communication parameter value based at least in part on the transmitted information.

Abstract: A technique for performing a multi-layer transmission from a transmitting station to a receiving station on a radio frequency is described. The multi-layer transmission comprises multiple layers having different robustnesses (704, 706) on the radio frequency. As to a method aspect of the technique, first data of a first hybrid automatic repeat request, HARQ, process is transmitted on a first layer of the multi-layer transmission simultaneously with second data of a second HARQ process on a second layer of the multi-layer transmission.

Abstract: A method of transmission including frequency hopping between channels comprises adjusting modulation and coding scheme for each set of channels for each frequency hop, wherein a set of link adaptation algorithms are used for the adjusting of the modulation and coding scheme. A transceiver comprises a transmitter, a receiver and a controller for controlling the operations of the transmitter and receiver, wherein the controller is arranged to control operations according to the method. A computer program comprises instructions which causes the transceiver to perform the method.

Abstract: A method is for controlling interleaving, within a packet for transmission, of second type symbols amongst first type symbols. The first type symbols comprise error correction encoded data modulated using a first modulation alphabet and the second type symbols are for communication parameter estimation and comprise error correction encoded data modulated using a second modulation alphabet which is smaller than the first modulation alphabet. The data modulated using the second modulation alphabet is encoded with a same error correcting code as the data modulated using the first modulation alphabet. The method comprises determining (340) one or more of: an interleaving density of the second type symbols, a type of the second modulation alphabet, and a size of the second modulation alphabet.

Abstract: Embodiments include methods for a wireless communication device comprising a main receiver and a wake-up receiver (WUR) having a channel selective filter. Such methods include determining a correlation metric for the WUR, based on the following: a signal received via the WUR using the channel selective filter configured according to a first one of a plurality of available bandwidths, and a reference signal that is representative of a wake-up signal (WUS) transmitted by an access point node. Such methods include detecting a WUS included in the received signal based on the correlation metric in relation to a first threshold, and in response to detecting the WUS, selecting a second one of the available bandwidths for the channel selective filter, based on the correlation metric in relation to a second threshold. Other embodiments include complementary methods for an access point node, as well as apparatus configured to perform such methods.

Abstract: Methods, apparatus, and device-readable mediums are disclosed relating to wireless access in a network requiring a carrier-sense mechanism. One aspect provides a method performed by a transmitting device for transmitting to a receiving device in a wireless communications network. The transmitting device comprises a plurality of antenna elements. The method comprises: performing a directional carrier-sense assessment for one or more sub-bands configured for transmissions between the transmitting device and the receiving device, the directional carrier-sense assessment utilizing beamforming to detect a respective level of wireless activity on each of the sub-bands in a particular direction for transmissions to the receiving device; selecting a respective transmit power for each sub-band based on the determined level of wireless activity; and transmitting to the receiving device in the particular direction, using the respective selected transmit power for each sub-band.