Abstract: A device is provided that mitigates the effects of an optical network unit (ONU) that is in a rogue state. A main processor is arranged as part of a monolithic semiconductor chip, the main processor configured to process signals from an optical telecommunication connection. A laser driver controls a laser coupled to the laser driver. Hardware logic is arranged as part of the monolithic semiconductor chip and arranged physically separate from the main processor. The hardware logic independently effects the laser driver to turn the laser off or reduce power output of the laser significantly to mitigate the effects of the ONU in the rogue state.

Abstract: There is provided a receiving device including a receiver configured to receive a signal including at least data information and control information; a monitor configured to monitor the control information included in the signal received by the receiver; and a controller configured to control the monitor to start monitoring the control information when a strength of the signal is equal to or lower than a predetermined value.

Abstract: Techniques are disclosed for projecting visible cues to assist with light-based communication (LCom), the visible cues referred to herein as visual hotspots. The visual hotspots can be projected, for example, using a luminaire that may be LCom-enabled. The visual hotspots may be projected onto the floor of an area including an LCom system. The visual hotspots can be used for numerous benefits, including alerting a potential user that LCom is available, educating the user about LCom technology, and assisting the user in using the LCom signals available in the area. The visual hotspots may include images, symbols, cues, characters (e.g., letters, words, numbers, etc.), indicators, logos, or any other suitable content. In some cases, the visual hotspots may be interactive, such that a user can scan the hotspot to cause an action to occur (e.g., launch an application or website).

Abstract: A fully connectorized optic fiber tap assembly is described that includes a first upstream connector interface configured to receive a downstream connector of a first upstream optic fiber line, and a first downstream connector interface configured to receive an upstream connector of a first downstream optic fiber line. The tap assembly further includes a set of service drop line connector interfaces. Moreover, an optic fiber tap of the assembly is configured to: receive an optical signal from the upstream connector interface, extract a portion of the optical signal, direct the extracted portion of the optical signal to the set of service drop line connector interfaces, and pass a remaining portion of the optical signal to the downstream connector interface. The fully connectorized optic fiber tap assembly is configured to be connected to the first upstream optic fiber line and the first downstream optic fiber line without splicing.

Abstract: A fiber optic distribution terminal includes a cable spool rotatably disposed within an enclosure; an optical power splitter and a termination region carried by the cable spool; an optical cable deployable from the enclosure by rotating the cable spool by pulling on a connectorized end of the optical cable; and splitter pigtails extending between the optical power splitter and the termination region. One fiber of the optical cable extending between the connectorized end and the splitter input. The other fibers of the optical cable extend to a multi-fiber adapter.

Abstract: An optoelectronic device may include a package having a component for sending/receiving optical signals along a first direction, and a chip of semiconductor material housed within the package. The chip may have a main surface and a portion exposed on the main surface for sending/receiving the optical signals along a second direction different from the first direction. The optoelectronic device may further include a component for deflecting the optical signals between the first direction and the second direction, the component being mounted on the main surface.

Abstract: A system for converting digital data into a modulated optical signal, comprises an electrically controllable device having M actuating electrodes. The device provides an optical signal that is modulated in response to binary voltages applied to the actuating electrodes. The system also comprises a digital-to-digital converter that provides a mapping of input data words to binary actuation vectors of M bits and supplies the binary actuation vectors as M bits of binary actuation voltages to the M actuating electrodes, where M is larger than the number of bits in each input data word. The digital-to-digital converter is enabled to map each digital input data word to a binary actuation vector by selecting a binary actuation vector from a subset of binary actuation vectors available to represent each of the input data words.

Abstract: A signal processing circuit generates first to fourth drive signals to which first to fourth fixed pattern are respectively added. An optical modulators generate a first polarization multiplexed optical signal of a first wavelength from the first and second drive signals and a second polarization multiplexed optical signal of a second wavelength from the third and fourth drive signals. The first to third fixed patterns are the same as one another, and a value of each bit of the fourth fixed pattern is inverted with respect to a value of a corresponding bit of the third fixed pattern. The signal processing circuit generates the first to fourth drive signals such that the first to fourth fixed patterns are transmitted at the same or approximately the same time by the first polarization multiplexed optical signal and the second polarization multiplexed optical signal.

Abstract: A method and apparatus for generating sub-carriers is disclosed. Coherent optical sub-carriers with sub-carrier spacing are generated for carrying an orthogonal frequency division multiplexed (OFDM) signal. Multiple peaks are generated by cascading multiple phase modulators driven by different radio frequency sources.

Abstract: In a coherent optical receiver device, the dynamic range considerably decreases in the case of selectively receiving the optical multiplexed signals by means of the wavelength of the local oscillator light, therefore, a coherent optical receiver device according to an exemplary aspect of the invention includes a coherent optical receiver receiving optical multiplexed signals in a lump in which signal light is multiplexed; a variable optical attenuator; a local oscillator connected to the coherent optical receiver; and a first controller controlling the variable optical attenuator by means of a first control signal based on an output signal of the coherent optical receiver; wherein the coherent optical receiver includes a 90-degree hybrid circuit, a photoelectric converter, and an impedance conversion amplifier, and selectively detects the signal light interfering with local oscillation light output by the local oscillator out of the optical multiplexed signals; and the variable optical attenuator is disposed

Abstract: Injectable acoustic tags and a process of making are described for tracking host animals in up to three dimensions. The injectable acoustic tags reduce adverse biological effects and have a reduced cost of manufacture compared with conventional surgically implanted tags. The injectable tags are powered by a single power source with a lifetime of greater than 30 days. The injectable tags have an enhanced acoustic signal transmission range that enhances detection probability for tracking of host animals.

Abstract: Acoustic tags and a process for fabrication are disclosed for identifying and tracking various hosts including inanimate and animate objects in up to three dimensions. The acoustic tags may be powered by a single power source. Tags can have an operation lifetime of up to 90 days or longer at a transmission rate of 3 seconds. The acoustic tags have an enhanced signal range that enhances detection probability when tracking the hosts.

Abstract: A wireless connection pairing method and a first electronic device are provided. The method includes: broadcasting, through an audio system, an acoustic signal which carries pairing information for establishing wireless connection with a first electronic device; the first electronic device receiving from a second electronic device a request for establishing wireless connection with the first electronic device through a wireless network, where the request contains the pairing information extracted from the acoustic signal; and the first electronic device sending a notice of permission to the second electronic device. By employing the method, a mobile device can use connection service conveniently without inputting a password manually.

Abstract: A method estimating number of occupants in a region includes receiving at one or more receiving unit a signal or signals transmitted from one or more transmitting units, wherein the transmitting units are not associated with the one or more occupants located in the region. In addition, the method includes measuring one or more attributes of the received signal for a duration of time and calculating an occupancy estimate based, at least in part, on the measured attribute of the received signal.

Abstract: A multiple-input multiple-output (MIMO) over-the-air (OTA) test system and method are provided that enable a device under test (DUT) to be tested that has no antenna connectors for interfacing antenna elements of the DUT with the MIMO OTA test system. The MIMO OTA test system and method can include a lens system that allows the OTA tests to be performed in a radiating near-field zone, thereby allowing a relatively small and less expensive anechoic chamber to be used in the MIMO OTA test system.

Abstract: A server system accesses a listening history of a user of the media-providing service, where the user is in a demographic group. For each track of a plurality of tracks in the listening history of the user, the server system calculates a first metric based at least in part on an affinity of members of the demographic group, as compared to members of other demographic groups, for the track. The server system averages the first metrics for the plurality of tracks in the listening history of the user to determine a second metric. In accordance with a determination that the second metric satisfies a threshold, the server system selects content for the user and provides the selected content to a client device associated with the user.

Abstract: A wireless communication system and in particular to a wireless communication system for digital audio players that provides for increased functionality, such as communication, interaction and synchronization between a computing platform and various mobile, portable or fixed digital audio players, as well as providing a communication link between the various digital audio players themselves. The computing platform may act, for example, through a wireless network or wireless communication platform, to control the digital audio players; to act as a cache of digital audio data for the digital audio players; as well as provide a gateway to the Internet to enable the digital audio players to access additional digital audio content and other information.

Abstract: An apparatus and method for simultaneously executing the same event in a plurality of mobile terminals are provided. The method includes transmitting a signal to the mobile terminals and checking a transmission time point of the signal; when a response signal for the signal is received, checking a reception time point of the response signal; calculating a signal delay time using the transmission time point of the predetermined signal, the reception time point of the response signal, and an offset time contained in the response signal; and transmitting an event execution signal to the mobile terminals and executing a corresponding event, considering the offset time and the signal delay time.

Abstract: A system includes an optical Y-junction coupler to receive a first modulated optical signal on a wide input path of the optical Y-junction coupler and to receive a second modulated optical signal on a narrow input path of the optical Y-junction coupler, wherein the optical Y-junction coupler generates a combined optical signal from signals received on the wide input path and the narrow input path. A multimode waveguide receives the combined optical signal from the optical Y-junction coupler and propagates a spatially multiplexed optical output signal along a transmission path.

Abstract: Methods, systems, and devices are disclosed for using optical modes in optical waveguides to carry different optical communication signals. In one aspect, an optical device for optical MDM in optical communications includes an optical waveguide configured to support multiple optical waveguide modes and to carry light of different optical communication channels in different optical waveguide modes, respectively, of the multiple optical waveguide modes. The optical device includes an optical resonator configured to be capable of carrying an optical communication channel in one optical resonator mode and optically coupled to the optical waveguide to selectively couple the optical communication channel in the optical resonator into the optical waveguide to add a channel into the optical waveguide via optical mode division multiplexing. In another aspect, an optical mode division demultiplexing can be performed by coupling an optical waveguide and an optical resonator.

Abstract: A method and an apparatus for transmitting broadcast signals thereof are disclosed. The apparatus for transmitting broadcast signals, the apparatus comprises an input formatter to input format service data, an encoder to encode the input formatted service data, a frame builder to build at least one signal frame including the encoded service data, wherein the at least one signal frame includes a plurality of OFDM symbols, a modulator to modulate data in the built at least one signal frame by an OFDM (Orthogonal Frequency Division Multiplex) scheme and a transmitter to transmit the broadcast signals having the modulated data.

Abstract: SISO decoding of a reception signal having a scrambled symbol arrangement is realized using a process having reduced complexity. Coordinates are generated for a reference point obtained by scrambling and mapping a symbol number not a symbol reference point position. This reference point simulates transmission-side scrambling and is generated for each symbol number by a first mapping unit. Because the binary expression of a corresponding original signal number is retained, a bit likelihood calculation unit can easily calculate a bit likelihood based on the distance between the reference point and a reception signal. The calculated bit likelihood is then deinterleaved and subjected to SISO error-correcting decoding. The thus obtained bit likelihood is then reinterleaved and used to calculate a symbol probability. Soft symbols are generated through the multiplication of all the calculated symbol probabilities by corresponding reference points output by a second mapping unit similar to the first mapping unit.

Abstract: A multiplexing communication system is provided in which, even in a case where communication uses a multiplex data string in which multiple types of pieces of data that are different in error processing by a multiplexing communication system and a substrate working machine are present mixedly, it is possible to perform the error processing suitable for every type of data. A transmission data composition processing section at a transmitting side performs setting processing for error detection in accordance with a data transfer rate and a data processing time for each of the multiple types of pieces of data, and then multiplexes these pieces of data using a multiplexing section, and transmits a result of the multiplexing.

Abstract: A method and apparatus are provided. The method includes receiving a desired signal from a serving base station, receiving a plurality of interfering signals from one or more base stations, estimating a maximum likelihood (ML) decision metric of interfering signals, applying a logarithm function to the ML decision metric, and applying a maximum-log approximation function to a serving data vector and an interference data vector, which are included in the ML decision metric, determining the values of a transmit power, a rank, a precoding matrix, a modulation order and a transmission scheme using the applied ML decision metric, and cancelling the interfering signals from the received signals using the determined values of transmit power, rank, precoding matrix, modulation order and transmission scheme.

Abstract: Techniques for adjustable interleaving for communication data are described. In at least some embodiments, interleaving depth for data is adjustable based on various parameters, such as a media type included in the data, signal quality for a signal used to transmit the data, and so forth. Thus, implementations discussed herein enable dynamic adjustment of interleaving and encoding for data to be transmitted as part of a communication session.

Abstract: Techniques to reduce the transmission overheads in a communication system are disclosed. In an embodiment, a method described herein relates to the elimination of redundant padding to realize an integer number of FEC code-words during the FEC-encoding process of transmission as well as the reduction/elimination of redundant padding to realize an integer number of transmission symbols during the subcarrier modulation mapping process of transmitting OFDM/ACMT/DMT symbols. The techniques are described in the context of a communication system based on the MoCA specification. Furthermore, techniques for channel-profiling, channel-estimation and bandwidth request/grant signaling that facilitate the realization of the method of reduction of transmission overheads in a MoCA system are also described.

Abstract: Certain aspects of the present disclosure generally relate to apparatus and methods for managing acknowledgement messages from multiple destinations for multi-user multiple-input multiple-output (MU-MIMO) transmissions. According to certain aspects, a polled block acknowledgement (BA) mechanism can be considered mandatory to an acknowledgement protocol, and a sequential (or other type of scheduled/deterministic) mechanism can be considered optional.

Abstract: Disclosed are a method and a device for transmitting HARQ information, relating to the technical field of wireless communications. The method includes that: a base station receives uplink data of a user equipment (UE), and obtains hybrid automatic repeat request (HARQ) information of the uplink data; by using the HARQ information and related information used for transmitting downlink control information, a control channel resource position corresponding to the HARQ information is determined; and by using the control channel resources indicated by the control channel resource position, the downlink control information is transmitted to the UE so that the UE acquires the HARQ information.

Abstract: The present invention relates to a method in a UE served by a network node, a method in the network node, the UE, and the network node. The network node is applying dynamic TDD with flexible subframes. The method comprises receiving (900) a first configuration message from the network node indicating a TDD reference configuration, and determining (910) in which subframe to signal HARQ information based on the TDD reference configuration. The method further comprises receiving (920) a second configuration message from the network node indicating a set of DL subframes that may comprise explicit signaling messages, monitoring (930) the indicated set of DL subframes, and receiving (940) an explicit signaling message in response to monitoring. The explicit signaling message designates a subframe in which the UE shall receive a DL signal. The method also comprises preparing (950) to receive the DL signal in the designated subframe.

Abstract: The present invention relates to transmitting data on a shared communication channel in a communication system supporting multiple hybrid automatic repeat request processes and configurable to apply a bundling of transmission time intervals. The data transmitting including mapping of TTIs of the HARQ processes cyclically onto subframes. In order to efficiently support dynamic bundle scheduling, when a grant is received during a bundle transmission, this grant becomes a shifting grant, according to which the bundle is transmitted and according to the location of which the timing of the grant reception and the data transmission is adapted. The transmission of the shifted bundle is performed in accordance with the state of its retransmission process, i.e. the bundle is either initially transmitted or retransmitted.

Abstract: Various examples are directed to optimizing communications based on network conditions. A computing device may be programmed to receive from a process executing at the computing device a network transmission request. The network transmission request may indicate payload data and a recipient computing device. The computing device may transmit to a recipient computing device a plurality of data packets. Each of the plurality of data packets may comprise at least a portion of the payload data. The computing device may detect an improvement in network conditions and accelerate retransmission of at least one data packet.

Abstract: A method and apparatus for providing for full-duplex (FD) operation in time division duplex (TDD) communications are disclosed herein. A wireless transmit/receive unit (WTRU) may receive an indication of a first, UL heavy, TDD uplink (UL)/downlink (DL) configuration and an indication of a second, DL heavy, TDD UL/DL configuration. The WTRU may also receive a grant in a common DL subframe. The WTRU may apply the hybrid automatic repeat request (HARQ) process timing associated with one of the TDD UL/DL configurations for DL HARQ feedback. Also, the WTRU may monitor a set of subframes for a UL or a DL grant. Further, the WTRU may receive a grant in a subframe which may include an indication of a reference TDD UL/DL configuration. The WTRU may then apply the HARQ process timing associated with the reference TDD UL/DL configuration for DL HARQ feedback.

Abstract: Provided is a method for generating a preamble of a transmission signal for human body communication, the method including using a frequency shift code (FSC) of which a length is adjusted according to an operating clock frequency or a transmission rate and a first pseudo random binary sequence (PRBS) code of p chips where p is a natural number to generate a first preamble unit block of n chips where n is a natural number, using the FSC and a second PRBS code of p? chips to generate a second preamble unit block of n? chips, and arraying the first preamble unit block consecutively and repeatedly and disposing the second preamble unit block at a next stage to form the preamble of the transmission signal.

Abstract: Various embodiments of a scheme of dynamic activation and release of carrier aggregation in an LTE-Advanced system are provided. When transmission need of an LTE-Advanced user is large and the user is within coverage of at least one secondary component carrier, carrier aggregation is activated while a certain amount of resource of each component carrier is preserved to support carrier aggregation. This avoids unnecessary activation and waste due to signaling cost. When the primary component carrier of an LTE-Advanced user has sufficient resource to satisfy transmission need of the user or when the user is not within coverage of at least one secondary component carrier, carrier aggregation is released. This minimizes complex measurement and cost of controlling signals due to multi-carrier scheduling.

Abstract: Methods and apparatus are provided for transmitting and receiving data streams. The data streams are received. The data streams are mapped to a physical slot. At least one frame that includes the physical slot is formed. The at least one frame is transmitted through at least one radio frequency. The at least one frame is received through at least one radio frequency. A location of the physical slot included in each frame is obtained. The data streams allocated to the physical slot in the location are received. The physical slot includes bit information indicating a number of antennas transmitting the at least one frame.

Abstract: A method and apparatus for generating logical frames from arbitrating among packets is disclosed. An integrated circuit (IC) includes an arbitration circuit configured to generate a logical frame having a first number of bytes by selecting at least one a plurality of packets received from different functional circuit blocks. At least one of the plurality of packets is of a different data size than at least one other one of the plurality of packets. The arbitration circuit is configured to, when selecting two or more of the plurality of packets, generate the logical frame by concatenating selected packets together. The IC further includes a framing circuit configured to generate, based on the logical frame, a physical frame for an outgoing transmission over a serial communications link, wherein the physical frame comprises a second number of bytes that is less than or equal to the first number of bytes.

Abstract: A communication device configured to generate a clear-to-send (CTS)-Announcement frame and to transmit the CTS-Announcement frame to one or more other communication devices. The CTS-Announcement frame can include an organizationally unique identifier (OUI) and a portion of network interface controller (NIC) identifier, and announcement information of the device's activities and/or state.

Abstract: A method used in a serving radio node and an associated serving radio node. The method includes receiving, from a control node controlling the serving radio node, a sounding and sensing related configuration for the serving radio node, wherein each sounding resource element indicated by the sounding and sensing related configuration is orthogonal to each sounding resource element indicated by a sounding and sensing related configuration for each neighboring radio node; and sensing, through a Receiver (RX) Radio Frequency (RF) chain of the serving radio node configured for each radio link of the one or more radio links, all sounding signals in a direction of the radio link based on the received sounding and sensing related configuration. Further methods described are used in a serving radio node, an associated serving radio node, and in a control node to control the serving radio node and the associated control node.

Abstract: A wireless communication method includes configuring a plurality of common sounding reference signal (SRS) subframes shared with one or more cooperating cells and providing an SRS configuration parameter to facilitate an orthogonal SRS transmission over at least one of the plurality of common SRS subframes.

Abstract: A method for transmitting a demodulation reference signal (DMRS) for a physical uplink shared channel (PUSCH), by a user equipment (UE), in a wireless communication system. The UE generates first, second, and third DMRS sequences, which are associated with first, second, and third layers respectively, by applying first, second, and third cyclic shifts to the first, second, and third DMRS sequences respectively. The UE transmits the first, second, and third DMRS sequences to a base station, wherein the first, second, and third cyclic shifts are determined based on first, second, and third cyclic shift values respectively. The first and second cyclic shift values are separated from each other by a maximum separation value, which is determined based on a total number of cyclic shifts. The third cyclic shift value is determined by increasing cyclically by a median separation value between the first and second cyclic shift values.

Abstract: A method for uplink transmission in a wireless communication system. A user equipment (UE) determines whether to transmit or drop a sounding reference signal (SRS) on a last symbol in a ith subframe. The SRS is dropped if multiple timing advance groups (TAGs) are configured, if a portion of the last symbol of the ith subframe for transmitting the SRS toward a first serving cell in a first TAG is overlapped with an (i+1)th subframe for transmitting an uplink channel toward a second serving cell in a second TAG and if a total power of the SRS and the uplink channel exceeds a maximum value on the overlapped portion of the last symbol.

Abstract: Systems and methodologies are described that facilitate indicating a type of waveform utilized for uplink transmission in a wireless communication environment. An access terminal can select a type of waveform from a set of possible waveform types. Moreover, a reference signal can be generated based upon the selected type of waveform. For instance, a sequence employed to yield the reference signal can be generated and/or chosen as a function of the selected type of waveform. According to another illustration, a tone location and/or a symbol location of the reference signal can be based upon the selected type of waveform. Further, the reference signal can be sent as part of the uplink transmission to the base station from the access terminal. The base station can detect the selected type of waveform utilized by the access terminal for the uplink transmission based upon parameter(s) recognized from the reference signal.

Abstract: Disclosed are a frame transmission method and a communication device performing the same. The communication device may transmit a null data packet (NDP)-announcement (NDP-A) including information on a plurality of communication devices participating in interference alignment and transmit an NDP including a common signal field and a common training field commonly applied to the plurality of communication devices.

Abstract: A base station encodes antenna configuration information of a neighboring cell of a first cell, and sends encoded information relating to the antenna configuration information of the neighboring cell to a user equipment (UE). The UE is capable of communicating with the base station in the first cell. The UE receives the encoded information; decodes the antenna configuration information of the neighboring cell from the encoded information; and performs determination of predetermined time-frequency resource according to the antenna configuration information of the neighboring cell. The predetermined time-frequency resource is used by a base station of the neighboring cell for transmitting pilot measurement information.

Abstract: The present invention proposes a method, including in a communication network area constituted by a plurality of transmission points configured for coordinated transmissions to at least one target, each transmission point being identified by an individual identifier, each transmission point being configured to transmit common reference signals on common channels and dedicated reference signals on dedicated channels to said at least one target device, assigning the respective individual identifier of each transmission point to the common reference signals on the common channels of the respective transmission point, and allocating, to the dedicated reference signals on the dedicated channels of respective plural transmission points, an identifier unrelated to the individual identifiers. Also, corresponding devices are addressed.

Abstract: A method for communicating Downlink Control Information (DCI) in an asymmetric multicarrier communication network environment, the method comprising: determining a carrier type corresponding to DCI to be transmitted to a mobile station from a plurality of carrier types, encoding the DCI in a DCI format, wherein the DCI format comprises a set of fields corresponding to the determined carrier type, and transmitting the DCI encoded in the DCI format to the mobile station through a downlink control channel on a primary carrier, wherein the DCI format comprises a carrier index field indicating type of the fields in the DCI format encoding the DCI and the carrier type corresponding to the encoded DCI.

Abstract: Techniques are described for wireless communication. A first method includes generating uplink control information at a wireless device, and transmitting the uplink control information over an interlace of a component carrier of an unlicensed radio frequency spectrum band. The interlace includes a plurality of non-contiguous concurrent resource blocks in the unlicensed radio frequency spectrum band, and at least two resource blocks in the interlace include different portions of the uplink control information. A second method includes generating uplink control information at a wireless device, and transmitting the uplink control information over an uplink control channel of an unlicensed radio frequency spectrum band. Resources of the uplink control channel are divided into a plurality of discrete dimensions and the uplink control information of the wireless device is transmitted over a number of the discrete dimensions allocated to the uplink control information of the wireless device.

Abstract: A communication apparatus has a receiver and a transmitter. The receiver, in operation receives a control signal including a Modulation and Coding Scheme (MCS) Index, a channel quality indicator (CQI) trigger and information indicating uplink resource blocks. The transmitter in operation, determines whether to multiplex an aperiodic CQI report with data in an uplink signal based on the MCS Index, the channel quality indicator trigger, the information indicating uplink resource blocks, and a threshold number of resource blocks, and transmits the uplink signal.

Abstract: A method for reporting a channel state for a downlink channel to be transmitted via a two-dimensional array of antenna elements consisting of one or more horizontal antenna groups and vertical antenna groups in accordance with one embodiment of the present invention, the method being performed by a terminal, comprises the steps of: receiving a channel state information-reference signal (CSI-RS) configuration for at least one vertical antenna group and a CSI-RS configuration for at least one horizontal antenna group; and calculating channel state information on the downlink channel using the received CSI-RS configurations and transmitting the channel information to a serving cell, wherein the channel state information comprises individual channel state information for a channel of the at least one vertical antenna group (hereinafter, ‘vertical channel’) and a channel of the at least one horizontal antenna group (hereinafter, ‘horizontal channel’), a combination of the individual channel state information, or j

Abstract: The disclosure relates to a white space device (WSD) of a secondary wireless network, and to a related method for transmitting a first signal on a channel available for secondary usage allocated to a primary wireless system. The method in the WSD comprises determining (410) a further channel used by the primary wireless system, that would be interfered by a transmission of the first signal on the channel available for secondary usage, retrieving (420) signal information associated with the determined further channel from the primary wireless system, transmitting (430) the first signal on the channel available for secondary usage, and transmitting (440) a second signal on the determined further channel based on the retrieved signal information, simultaneously with the first signal on the channel available for secondary usage* such that an interference generated in the primary wireless system by the first signal transmission is compensated for by the second signal transmission.