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: Channel access coordination for TXOP sharing An access point of a wireless communication system operates on a primary bandwidth part 5 (Ch2, Ch3) of a medium. This operation on the primary bandwidth part (Ch2, Ch3) is based on carrier sensing to gain access to the primary bandwidth part of the medium. Further, the access point scans a secondary bandwidth part (Ch1, Ch2) of the medium to detect control messages transmitted on the secondary bandwidth part (Ch1, Ch2), without performing carrier sensing to gain access to the secondary bandwidth part (Ch1, Ch2) of the medium. Further, the AP 10 detects a control message indicating that another AP reserved a transmission opportunity, TXOP, on the secondary bandwidth part (Ch1, Ch2) of the medium. In response to the control message, the AP cooperates with the other AP by sharing the TXOP for performing one or more transmissions of data.

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: Methods for facilitating positioning determination in a Wi-Fi communication network are disclosed. An example method comprises sending, to a responding communication node, a request to start a position-related determination procedure and information of a first plurality of frequency bands over which the initiating communication node is able to communicate. The method further comprises receiving, from the responding communication node, second information related to a second number of frequency bands over which the responding communication node is able to communicate, and triggering start of the position-related determination procedure based on the received second information so that the position-related determination procedure is performed over at least one of a third number of frequency bands that occurs in both the first plurality of frequency bands and the second number of frequency bands.

Abstract: A wireless device (AP1) contends for access to a medium. In response to gaining access to the medium, the wireless device (AP1) reserves a TXOP on the medium. Further, the wireless device (AP1) configures a set of resources (501, 502, 503) in the reserved TXOP to be available to at least one other wireless device (AP2, STA31) for one or more transmissions of data (D) arriving after beginning of the TXOP.

Abstract: A system for multi-link transmission in a wireless network having multiple nodes. Each node defines a corresponding coverage area and is configured to perform operations in the wireless network. The system has a device configured to transition between nodes and corresponding coverage areas and perform operations in the wireless network, a controller causing transmission of data between the device and a set of nodes using a multi-link connection. The multi-link includes a first transmission link and a second transmission link associating the device with the node set. The controller causes transmission of data over the first transmission link and/or the second transmission link. The same frequency and same cell identifier is allocated to the node set for transmission of data in the first transmission link. Different cell identifiers are allocated to respective node in the node set for transmission of data in the second transmission link.

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

Abstract: Embodiments include methods for an access point to schedule wireless communication devices. Such methods include performing link adaptation by assigning respective modulation and coding schemes (MCS) for the wireless communication devices. Each assigned MCS is associated with a corresponding power back-off. Such methods include scheduling the wireless communication devices on transmission resources based on assignment of the wireless communications devices into two or more groups. Each group is scheduled on different transmission resources than used to schedule other groups. First wireless communication devices assigned a first MCS and a first power back-off are assigned to a first group. Second wireless communications devices assigned a second MCS and a second power back-off, and that meet a grouping criterion associated with the first power back-off, are assigned to the first group until a maximum size for the first group is reached.

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 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: Methods for facilitating positioning determination in a Wi-Fi communication network are disclosed. An example method comprises sending, to a responding communication node, a request to start a position-related determination procedure and information of a first plurality of frequency bands over which the initiating communication node is able to communicate. The method further comprises receiving, from the responding communication node, second information related to a second number of frequency bands over which the responding communication node is able to communicate, and triggering start of the position-related determination procedure based on the received second information so that the position-related determination procedure is performed over at least one of a third number of frequency bands that occurs in both the first plurality of frequency bands and the second number of frequency bands.

Abstract: Methods are disclosed for communication devices capable of simultaneous transmission and reception, wherein a first method is for reception of a packet comprising a header and a payload and a second method is for transmission of a packet comprising a header and a payload. The second method comprises transmitting at least a part of the header. The first method comprises receiving at least a part of the header, attempting to decode the part of the header, and (when the part of the header is successfully decoded) transmitting a header acknowledgement signal. The second method comprises monitoring receipt of a header acknowledgement signal, and (when absence of the header acknowledgement signal is detected) interrupting the transmission of the packet and scheduling the packet for retransmission. Corresponding apparatuses, transceivers, communication devices and computer program products are also disclosed.

Abstract: A method of a scheduling apparatus for multi-user scheduling, wherein the multi-user scheduling may—for example—be in an unlicensed communication environment. The method comprises transmitting a first signal to a first set of users wherein the first signal is indicative of a request for user-specific information, receiving—responsive to transmitting the first signal—a respective second signal from each of a second set of users wherein the second signal is indicative of the requested user-specific information, and scheduling—responsive to receiving the respective second signals—a third set of users based on the received second signals. The second set is a subset of the first set of users, and the third set of users is a subset of, or coincides with, the second set of users. Corresponding scheduling apparatus, wireless communication apparatus and computer program product are also disclosed.

Abstract: A method is disclosed performed by an initiating communication node (110), for facilitating positioning determination in a Wi-Fi communication network (100). The method comprises sending, to a responding communication node (120), a request to start a position-related determination procedure and information of a first plurality of frequency bands over which the initiating communication node (110) is able to communicate. The method further comprises receiving, from the responding communication node (120), second information related to a second number of frequency bands over which the responding communication node (120) is able to communicate, and triggering start of the position-related determination procedure based on the received second information so that the position-related determination procedure is performed over at least one of a third number of frequency bands that occurs in both the first plurality of frequency bands and the second number of frequency bands.

Abstract: A transmitter is arranged to transmit binary information using a binary amplitude shift keying where information symbols are represented by a signal including a first power state and a second power state. The first power state has a higher signal power than the second power state. A ratio in powers between the first and second power states is below a first value. The ratio in powers between the first and second power states is above a second value such that the states are distinguishably decodable. A network node having such a transmitter, a corresponding method, and a computer program for implementing the method in a transmitter are also disclosed.

Abstract: Embodiments include methods for an access point to schedule wireless communication devices. Such methods include performing link adaptation by assigning respective modulation and coding schemes (MCS) for the wireless communication devices. Each assigned MCS is associated with a corresponding power back-off. Such methods include scheduling the wireless communication devices on transmission resources based on assignment of the wireless communications devices into two or more groups. Each group is scheduled on different transmission resources than used to schedule other groups. First wireless communication devices assigned a first MCS and a first power back-off are assigned to a first group. Second wireless communications devices assigned a second MCS and a second power back-off, and that meet a grouping criterion associated with the first power back-off, are assigned to the first group until a maximum size for the first group is reached.

Abstract: An access point is arranged for serving both wideband wireless stations and narrowband wireless stations where the narrowband wireless stations operate on a subset of the bandwidth on which the wideband wireless stations operate. The access point comprises a transceiver and a controller. The controller is arranged to schedule simultaneous usage of a first set of subcarriers for a wideband station and a first narrowband wireless station by causing the transceiver to transmit a first subcarrier suggestion, about the first set of subcarriers to be used, to the first narrowband wireless station and to transmit a modulation and coding scheme, MCS suggestion, about subcarriers including the first set of subcarriers to be used, to the wideband station. The suggested MCS is adapted to have increased robustness in view of any interference on a transmission from the wideband wireless station caused by a transmission from the first narrowband wireless station in the first set of subcarriers.

Abstract: A first radio device receives a first radio transmission from a second radio device. In response to reception of the first radio transmission by the first radio device being unsuccessful, the first radio device sends a second radio transmission to the second radio device. The second radio transmission comprises an indication to the second radio device that reception of the first radio transmission by the first radio device was unsuccessful. The first radio device generates the second radio transmission to be decodable by one or more other radio devices than the second radio device as comprising a positive acknowledgement message, indicating to the second radio device that reception of the first radio transmission by the first radio device was successful, as comprising a clear-to-send message to the second radio device, or as some other legacy message supported by the other radio device(s).

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 and apparatus for relaying messages in a mesh netork.