Abstract: This document discloses a solution for carrying out narrowband communications in a wireless network. According to an aspect, a method comprises in an apparatus: detecting at least one content notification message indicating contents of each of a plurality of messages frequency-multiplexed with a discovery message to parallel sub-channels of a channel in a bi-directional wireless network; selecting autonomously a sub-channel on the basis of the detected content notification message; and acquiring a message through the selected sub-channel.

Abstract: An apparatus comprises: a camera module for obtaining a first image, the camera module having at least one port, each of the at least one ports being associated with an attachment position for receiving a second camera module for obtaining a second image; a processor for detecting a position of a second camera module and providing, to an image processing controller, information relating to at least one of the position of the second camera module and the first image obtained by the camera module; and a memory for storing the information relating to at least one of the position of the second camera module and the first image obtained by the camera module.

Abstract: This document discloses a solution for carrying out narrowband communications in a wireless network. According to an aspect, a method comprises in an apparatus: detecting at least one content notification message indicating contents of each of a plurality of messages frequency-multiplexed with a discovery message to parallel sub-channels of a channel in a bi-directional wireless network; selecting autonomously a sub-channel on the basis of the detected content notification message; and acquiring a message through the selected sub-channel.

Abstract: Uplink data indication transmission(s) are received over a subband and over OFDM symbol(s) from STA(s) in a wireless communication system. The received uplink data indication transmission(s) are decoded to determine a unique codeword for each of the STA(s). From the determined unique codewords and using a mapping between station IDs and codewords in a codebook, a unique station ID is determined for each of the STA(s). For STA(s) determined to have sent the uplink data indication, other operations are performed to prepare for subsequent reception of uplink data from the STA(s) determined to have sent the uplink data indication.

Abstract: An apparatus comprises: a camera module for obtaining a first image, the camera module having at least one port, each of the at least one ports being associated with an attachment position for receiving a second camera module for obtaining a second image; a processor for detecting a position of a second camera module and providing, to an image processing controller, information relating to at least one of the position of the second camera module and the first image obtained by the camera module; and a memory for storing the information relating to at least one of the position of the second camera module and the first image obtained by the camera module.

Abstract: This document discloses a solution for determining a channel assessment threshold in an apparatus. A method according to this solution includes: determining, by the apparatus, a channel assessment threshold based on a factor representative of a signal-to-interference ratio at another apparatus with which said apparatus has established a link; determining, by the apparatus on the basis of the channel assessment threshold, whether or not a channel is free for transmission over the link; and upon determining the channel to be free, causing transmission of a frame.

Abstract: A method of controlling device-to-device communications between user equipment, including using a network control element, which is common to a plurality of networks, including controlling any of the following functions: network access control functions, connection set-up, resource allocation, mode switching, handover, security and/or charging. Also a method of controlling handovers or connections in a device-to-device communications between a first and a second user equipment wherein the control is performed, at least in part, said first or second user equipments. Alternatively the user equipment may send reports a handover/connection is initiated/controlled based on said report.

Abstract: In one aspect the embodiments of the invention provide a method that includes transmitting a first frame comprising a first type of message from a first node for reception by a second node. The first node is associated with a first wireless communication system and the second node is associated with a second wireless communication system. The first type of message includes a first information element for identifying the second node and a second information element for specifying that the first frame is transmitted to initiate a request for simultaneous transmission by the first node and by the second node. The first frame is also received by a third node that is part of the first wireless communication system. The method further includes receiving from the third node a second frame that includes a second type of message.

Abstract: Uplink data indication transmission(s) are received over a subband and over OFDM symbol(s) from STA(s) in a wireless communication system. The received uplink data indication transmission(s) are decoded to determine a unique codeword for each of the STA(s). From the determined unique codewords and using a mapping between station IDs and codewords in a codebook, a unique station ID is determined for each of the STA(s). For STA(s) determined to have sent the uplink data indication, other operations are performed to prepare for subsequent reception of uplink data from the STA(s) determined to have sent the uplink data indication.

Abstract: This document discloses a solution for determining a channel assessment threshold in an apparatus. A method according to this solution includes: determining, by the apparatus, a channel assessment threshold based on a factor representative of a signal-to-interference ratio at another apparatus with which said apparatus has established a link; determining, by the apparatus on the basis of the channel assessment threshold, whether or not a channel is free for transmission over the link; and upon determining the channel to be free, causing transmission of a frame.

Abstract: A first access node of a first network utilizes code sequences, assigned to different user devices, to distinguish at least acknowledgements received in parallel or sequentially from those user devices. The first access node determines from received signaling that a root sequence of the code sequences is in use by a second access node of a second network, then changes that root sequence of the code sequences assigned to the different user devices. In certain examples the access nodes are WLAN access points APs and the acknowledgements are received in response to a group probe/poll. In various embodiments the first AP monitors its neighbors' group probes/polls to learn the root sequences/basic service sets in use in those neighbor networks, or the AP's own stations monitor and send the information in neighbor reports. This latter option can be initiated by the stations themselves, or by the AP.

Abstract: Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: determining, by a wireless relay device, a first time window allocated for a first network, allowing first maximum transmit power for packet transmissions; and determining, by the wireless relay device, a second time window allocated for a second network, wherein the second time window is allowed for transmissions also within the first network, but only with second maximum transmit power that is lower than the first maximum transmit power.

Abstract: In one aspect the embodiments of the invention provide a method that includes transmitting a first frame comprising a first type of message from a first node for reception by a second node. The first node is associated with a first wireless communication system and the second node is associated with a second wireless communication system. The first type of message includes a first information element for identifying the second node and a second information element for specifying that the first frame is transmitted to initiate a request for simultaneous transmission by the first node and by the second node. The first frame is also received by a third node that is part of the first wireless communication system. The method further includes receiving from the third node a second frame that includes a second type of message.

Abstract: Method, apparatus, and computer program product embodiments configure channel access windows in overlapping network environments. An example method embodiment comprises: transmitting, by an access node, a measurement request to an associated wireless device, to perform measurements of signals received from other access nodes to which the device is not associated, the device being a member of a group of devices based on transmission by the access node to the device, of a directional beacon frame; receiving from the device, a measurement response comprising information on a directional message with an access node identifier of another access node to which the device is not associated; and determining a time window that may be used by devices that are members of the group, for transferring data between members of the group and the access node, based at least partly on the measurement response.

Abstract: Systems and techniques for sharing data collected by sensing devices are described. At initial setup of a sensing device, authorizations for access to data collected by the device are defined. Data collected by the device is delivered to a central repository, which allows access to data by users based on authorization information associated with the users.

Abstract: A method, apparatus, and computer program for controlling device-to-device connections and associated quality-of-service parameters are presented. The quality-of-service parameters of an end-to-end connection through a plurality of different radio access networks are aligned in connection with changing a communication mode to a direct device-to-device connection.

Abstract: A first access node of a first network utilizes code sequences, assigned to different user devices, to distinguish at least acknowledgements received in parallel or sequentially from those user devices. The first access node determines from received signaling that a root sequence of the code sequences is in use by a second access node of a second network, then changes that root sequence of the code sequences assigned to the different user devices. In certain examples the access nodes are WLAN access points APs and the acknowledgements are received in response to a group probe/poll. In various embodiments the first AP monitors its neighbors' group probes/polls to learn the root sequences/basic service sets in use in those neighbor networks, or the AP's own stations monitor and send the information in neighbor reports. This latter option can be initiated by the stations themselves, or by the AP.

Abstract: Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: receiving by a wireless terminal device, a first message from an access point, the first message comprising information indicating a plurality of restricted access windows, each allocated for a different group of terminal devices associated to a wireless network managed by the access point; receiving by the terminal device, a second message from the access point, within a restricted access window of the plurality of restricted access windows, the restricted access window allocated to a group of terminal devices of which the terminal device is a member, the second message comprising information indicating that a communications channel is available; and determining by the terminal device, based on the second message, that the communications channel is not occupied by hidden ones of the terminal devices associated to the network.

Abstract: A first access node of a first network utilizes code sequences, assigned to different user devices, to distinguish at least acknowledgements received in parallel or sequentially from those user devices. The first access node determines from received signaling that a root sequence of the code sequences is in use by a second access node of a second network, then changes that root sequence of the code sequences assigned to the different user devices. In certain examples the access nodes are WLAN access points APs and the acknowledgements are received in response to a group probe/poll. In various embodiments the first AP monitors its neighbors' group probes/polls to learn the root sequences/basic service sets in use in those neighbor networks, or the AP's own stations monitor and send the information in neighbor reports. This latter option can be initiated by the stations themselves, or by the AP.

Abstract: Embodiments of the invention provide signaling mechanisms for wireless networks composed of a large number of stations. An example method embodiment comprises: receiving, by a station in an access network, a frame from another station in the access network or from an overlapped access network, indicating time restrictions for reserving a wireless medium, the frame including an indication in a first portion of the frame, indicating the presence of the time restrictions for reserving the wireless medium; and decoding, by the station, at least a second portion occurring after the first portion of the received frame, to determine the time restrictions for reserving the wireless medium, in response to the indication.