Abstract: Functionality is described by selecting a channel in an environment in which non-privileged entities have subordinate access rights to spectrum compared to privileged entities. The functionality operates by identifying spectrum that is available to all nodes involved in communication (where the nodes are associated with non-privileged entities). The functionality then generates a suitability assessment for each candidate channel within the available spectrum. The functionality selects a channel having the most desirable suitability assessment. The functionality can form a suitability assessment for a candidate channel of arbitrary width, e.g., by combining suitability assessments associated with constituent spectrum units within the candidate channel.

Abstract: Channel assessment and selection for wireless communication is made between two or more medical devices, such as between an implantable medical device (IMD) and a non-implanted medical device, between two IMDs, or between two non-implanted medical devices. A telemetry module of a medical device operating in accordance with the techniques of this disclosure obtains measured ambient power levels on a plurality of channels of a frequency band regulation, such as the ten channels of the MICS band regulation. The telemetry module computes channel assessment values for at least a portion of the plurality of channels based on the measured ambient power levels on at least one other channel of the plurality of channels and selects a channel to transmit on based on the channel assessment values.

Abstract: A network can send cell reselection criteria to a mobile terminal. The mobile terminal measures or otherwise obtains radio condition measurements (such as received power, interference, mobile transmit power and the like) and/or geographical location measurements. The mobile can maintain a history of the cell selection criteria and/or measurements. The radio condition measurements are compared against historical data and/or cell reselection criteria and, based on the comparison; the mobile terminal can initiate cell reselection.

Abstract: A method for multi-radio coexistence receives historical frequency usage information and historical time usage information from a first radio. The method creates a time and frequency mask by extrapolating the historical frequency and time usage information to future times and frequencies when the first radio will be active and uses the time and frequency mask to schedule a second radio to avoid receiving when the first radio will likely be active. A related apparatus has a collocated radio input for receiving timing usage information, a non-collocated radio input for receiving frequency usage information, and a time and frequency mask generator for creating a time and frequency mask using the timing usage information and the frequency usage information. The method and apparatus predicts collocated and non-collocated radio activity in both the time and frequency dimensions to reduce interference among radios operating in overlapping or adjacent frequency bands.

Abstract: The first communication apparatus transmits existence confirmation request notices to the second communication apparatus, using the first frequency band and the second frequency band that is a frequency band different from the first frequency band. The second communication apparatus returns existence confirmation response notices as a response to the correctly received existence confirmation request notices of the first frequency band and the second frequency band, to the first communication apparatus, using the frequency bands corresponding to the first frequency band and the second frequency band. The first communication apparatus, after having received one or more of the existence confirmation response notices transmitted from the second communication apparatus, exchanges data with the second communication apparatus, using the frequency band that corresponds to the existence confirmation response notice transmitted through the higher frequency band among the first and second frequency bands.

Abstract: The present invention relates to a method for reducing power consumption when performing the cooperative transmission in a cooperative transmission system, the method comprising: defining a cooperative transmission participation rate or a cooperative transmission non-participation rate to adjust the participation rate of at least one terminal capable of cooperative transmission within at least one cooperative cluster, the participation rate adjustment being carried out in the at least one terminal capable of cooperative transmission by generating a random value having a preset range; comparing the generated random value with a threshold as a reference indicating whether a corresponding terminal is participating in cooperative transmission; and determining whether the corresponding terminal has participated in cooperative transmission, on the basis of the comparison result.

Abstract: A method for providing co-channel interference information by a network node includes receiving information for at least one user equipment (UE) connected to an adjacent network node, determining a co-channel interference list for user equipment (UE) connected to the network node wherein the co-channel interference list is based on the received information and transmitting the co-channel interference list to a UE connected to the network node.

Abstract: Method for controlling radio transmission of audio data, wherein audio data from an audio player device is FM-modulated and transmitted to be received by an RDS capable FM radio receiver, comprising selecting at least one frequency, transmitting said selected frequency as Alternate Frequency of the RDS system to be received by said RDS capable FM radio receiver, receiving an input and responsive thereto interrupting said audio transmission, switching to said transmitted frequency, and resuming transmission of said audio data using said transmitted frequency.

Abstract: For enhanced interoperability of safety and non-safety communications, a synchronous interval is divided into a safety channel interval and an open interval instead of a CCH (control channel) interval and SCH (service channel) interval. For a single-radio device, a control interval, in place of an open interval should be scheduled at least once every maximum service scheduling period. Such a control interval is dedicated for CCH (and SCH) operation. For a multi-radio device, a control interval is scheduled at least once every maximum control interval on one of the radios support non-safety services (e.g. tolling).

Abstract: Systems and methods for detecting unused channels in a cognitive radio system are described. In one method, data is communicated on a particular channel for a secondary receiver. In addition, a set of channels is iteratively scanned by collecting samples for each channel and for each iteration of the scanning. Here, iterations of the scanning progressively removes channels from the set of channels based on the collected samples and updates states of the channels in the set based on the collected samples to obtain a set of candidate channels. In response to detecting a pre-determined condition, communications on the particular channel are precluded and at least one of the candidate channels is evaluated by collecting additional samples on each of the channels. Further, at least one of the candidate channels is selected based on the evaluation for utilization by the one or more secondary receivers for data communication.

Abstract: Spectrum that will become venue-protected in the future is made available to radio devices by a central control system with which the radio devices requests spectrum access information for use in wireless communication. The central control system establishes a re-request time duration specified in an amount of time that will elapsed at or before the spectrum becomes protected. The elapsing of the re-request duration serves as a command to the radio device to transmit a new channel request to the central control system.

Abstract: A two-level database structure for use by unlicensed TVBD devices operating in TV white space comprises a central database and local databases. The central database comprises two sub-database: the central licensed database which maintains information about all licensed TV devices and the central unlicensed database which maintains information about unlicensed wireless devices operating in TV spectrum. The local database is created by each TVBD device or TVBD network when it initiates and it stores information related to all transmitters in the local area including location, power transmission levels, operating schedule, sensing results, backup channel information. The local databases communicate with central database to query it about licensed usage of TV spectrum and register with central database.

Abstract: A method, apparatus, system, and computer program product example embodiments of the invention are disclosed to reduce interference of predictive signal transmissions between wireless devices. In an example embodiment, a wireless receiver is configured to receive a composite signal, wherein the composite signal includes at least a beacon component comprising a regular beacon symbol. The wireless receiver is configured to determine from the beacon component, a predicted reception of a predicted future beacon symbol, using a known beacon transmission pattern. The wireless receiver is configured to cancel from the composite signal a future received beacon symbol, based at least partly on the predicted future beacon symbol.

Abstract: The disclosure relates to a network node of a wireless network, and to a related method of controlling interference generated by at least one white space device controlled by the network node. The method comprises transmitting a request for information regarding channels available for secondary usage to the remote entity, and receiving information from the remote entity, the information indicating a channel available for secondary usage, a critical position associated with said channel, and an interference threshold for the critical position.

Abstract: A method for remotely and dynamically controlling adjacent satellite interference comprising monitoring one or more off-axis signals emitted by one or more remote transmitters; determining whether one or more of the off-axis signals is creating adjacent satellite interference (ASI), off axis emissions and inband interference that is higher than a predetermined level of acceptable interference, and transmitting a control signal to at least one of the one or more remote transmitters in response to the determination that the one or more off-axis signals is creating interference that is higher than the predetermined level of acceptable interference, the control signal initiating an adjustment to one or more transmission parameters of the one or more remote transmitters such that interference resulting from the one or more off-axis signals emitted by the one or more remote transmitters is reduced or eliminated.

Abstract: A system and method for automatic fractional frequency reuse (FFR) planning are provided. A method for controller operations includes determining a group of frequency reuse modes, assigning at least one frequency reuse mode to a controller based on mutual relationship information, where the at least one frequency reuse mode is from the group of frequency reuse modes, and sharing the at least one frequency reuse mode with communications controllers coupled to the controller.

Abstract: A monitoring circuit and method, wherein a voltage waveform having a linear falling edge is applied to a first node of at least one test memory cell (e.g., a plurality of test memory cells connected in parallel). The input voltage at the first node is captured when the output voltage at a second node of the test memory cell(s) rises above a high reference voltage during the falling edge. Then, a difference is determined between the input voltage as captured and either (1) the output voltage at the second node, as captured when the input voltage at the first node falls below the first reference voltage during the falling edge, or (2) a low reference voltage. This difference is proportional to the static noise margin (SNM) of the test memory cell(s) such that any changes in the difference noted with repeated monitoring are indicative of corresponding changes in the SNM.

Abstract: Methods and systems for dynamic spectrum access (DSA) in a wireless network are provided. A DSA-enabled device may sense spectrum use in a region and, based on the detected spectrum use, select one or more communication channels for use. The devices also may detect one or more other DSA-enabled devices with which they can form DSA networks. A DSA network may monitor spectrum use by cooperative and non-cooperative devices, to dynamically select one or more channels to use for communication while avoiding or reducing interference with other devices. A man-made noise rejection sub-system is used to permit signal detection while maintaining a low false alarm rate.

Abstract: Provided is a method and apparatus for sharing a frequency in an environment where an incumbent system exists. In a frequency environment where the incumbent system exists, a frequency resource management may be smoothly performed using a plurality of frequency sets classified based on a utilization state of each sub-frequency resource. When a frequency sharing system using the same radio access technology (RAT) as a frequency sharing system to be assigned with a frequency resource exists, it is possible to reduce overhead for frequency sharing by priorly assigning a corresponding frequency resource to to the frequency sharing system to be assigned with the frequency resource.

Abstract: At a wireless device operating in an unlicensed frequency band, energy received at a plurality of antennas is analyzed to detect interference on a channel in the unlicensed frequency band. The type of interference detected in the received energy is determined. Parameters are then generated for a nulling filter based on the type of interference detected in the received energy. The nulling filter is applied to the received energy at the plurality of antennas to produce a spatially filtered output. The spatially filtered output is evaluated to determine whether to send a transmission on the channel in the unlicensed frequency band.

Abstract: Using bearer channels for wireless nodes includes initiating communication among the wireless nodes that include a node and one or more neighbor nodes. An adaptive channel operable to communicate messages between the node and the neighbor nodes is established. One or more bearer channels are selected. The one or more neighbor nodes are notified of the one or more selected bearer channels using the adaptive channel. The node and the neighbor nodes communicate over the bearer channels.

Abstract: To find frequency slots over which a cognitive radio can send an opportunistic transmission, a wideband spectrum is searched with a lower resolution to identify bandwidth slices having low or no signal levels. The identified bandwidth slices are searched with a higher resolution and candidate frequency slices are selected as those bandwidth slices having the least signal levels after the higher resolution searching, and ranked from the lowest signal level to the highest. A spectrum detection algorithm is executed on the selected candidate frequency slices in the order of the rank until it is decided that one of them has sufficiently free spectrum. A transmission is then opportunistically sent on the decided candidate frequency slice. Ongoing to the searching, intermittent signals are detected and a band about them is searched with the lower resolution to determine if the band about the detected intermittent signal is an identified bandwidth slice.

Abstract: A method and a system of channel detecting and reporting, a terminal, and a management center are provided. The method includes: a first access device of a terminal detects a channel status of one or more channels; and a second access device of the terminal reports a channel detection result detected by the first access device to destination equipment through an access network. The system includes a terminal and a management center. The terminal can access an access network through various access devices and report a channel detection result to the management center. The management center adjusts communication parameters of relevant equipment according to the detection result. The channel detection result can be reported in time, so that communication dead zones are prevented, and probability of long-term interference on hidden nodes in a communication system is reduced.

Abstract: In some embodiments, a method of identifying at least one transmission frequency in a set of carrier frequencies can include: (a) determining a first signal strength for each carrier frequency in the set of carrier frequencies; (b) choosing a first transmission frequency from the set of carrier frequencies at least partially based on the first signal strength of each of the carrier frequencies of the set of carrier frequencies; and (c) broadcasting electrical signals over the first transmission frequency. Other embodiments are disclosed herein.

Abstract: A method and apparatus for controlling transmission and reception of dedicated pilots according to an MCS level in a wireless communication system are provided, in which an MCS level is determined for a data channel, the amount of resources for sending dedicated pilots is determined in inverse proportion to the MCS level, a pilot channel signal including basic pilots mapped to resources allocated to a pilot channel, a control channel signal including control information mapped to resources allocated to a control channel, and a data channel signal including the dedicated pilots mapped to the determined amount of resources being part of resources allocated to the data channel and data mapped to the remaining of the resources allocated to the data channel are generated, and the pilot channel signal, the control channel signal, and the data channel signal are multiplexed and sent in the mapped resources.

Abstract: A semiconductor device comprising an interface logic module for transmitting data frames across an interface, and controller logic module arranged to control a rate at which the interface logic transmits data across the interface. Upon receipt of data frames to transmit across the interface, the controller logic module is arranged to determine a sequence of data rates with which to transmit sequential data frames across the interface, and to configure the transmission of the data frames across the interface according to the determined data rate sequence. The selection of these data rates will be dependent on specific critical RF frequencies where EMI impacts have to be minimized.

Abstract: Methods and apparatus for feeding back channel quality indication in a communication system. First, a first channel quality indication index is determined in dependence upon a channel quality estimation of a first transmission channel, and a second channel quality indication index is determined in dependence upon a channel quality estimation of a second transmission channel. A differential channel quality indication index of the second channel quality indication index is determined with reference to the first channel quality indication index in dependence upon a differential compression scheme. Then, the first channel quality indication index and the differential channel quality indication index are reported.

Abstract: A method and corresponding system is provided for managing registrations and reducing registration failure. According to at least one embodiment of the method, a wireless communication device (WCD) receives a channel list message (CLM) in a given coverage area. The WCD may determine that it is not within coverage of a first channel specified in the CLM. The WCD may make this determination before attempting to register for service on the first channel. In response to making this determination, the WCD may register for service on another channel specified in the received CLM.

Abstract: A device receives first information about a wireless communication service within a venue. The device further receives, from one or more small cells within the venue, second information about traffic load of the one or more small cells. The device generates third information based on the first information and the second information. The third information assigns network resources to one or more services provided to mobile devices, within the venue, via the small cells. The device transmits the third information to configure the one or more small cells.

Abstract: A communication method in a wireless local area network (WLAN) system is provided. The communication method includes: configuring, by a first access point (AP), a first basic service set (BSS) which uses a first primary channel (P-CH) and a first secondary channel (S-CH); and configuring, by a second AP, a second BSS which uses a second P-CH, a second S-CH, a second tertiary channel (T-CH), and a second quaternary channel (Q-CH), wherein a band of the first P-CH overlaps with a band of the second P-CH, and the second P-CH is a common channel which is used in an operation of a member station of the second BSS.

Abstract: Present embodiments provide methods and systems for identifying quiet and/or under utilized segments of the radio spectrum and assigning the identified spectrum to non-primary license holders. The methods and systems may include spectrum management nodes for monitoring frequency bands of the radio spectrum for transmission by a primary user. When a primary user is not transmitting, segments of the quiet spectrum may be assigned to a non-primary user.

Abstract: Channel selection techniques for a wireless network are described. An apparatus may comprise a device to communicate information over a common wireless communication link. The device may include a channel selection module to select a channel pair comprising a high rate physical channel and a low rate physical channel based on energy measurements for the channels. Other embodiments are described and claimed.

Abstract: A wireless communication apparatus is provided that performs wireless communication using a specified wireless channel and forms part of an ad hoc wireless network. The device includes a recording portion that records country ID information and recording-time information in to a storage medium, where the recording-time information indicates the time at which the country ID information was recorded in to the storage medium, a time determination portion that uses the recording-time information to determine whether a predetermined time period has elapsed from the time at which the country ID information was recorded, and a channel setting portion that, when the predetermined time period has not elapsed from the time at which the country ID information was recorded in the storage medium, sets a wireless channel to a frequency channel that can be used in the country indicated by the country ID information recorded in the storage medium.

Abstract: A method of providing intersection assistance with a portable electronic device to remind a user of traffic rules when the user approaches traffic intersections includes receiving an input from the user indicating a destination location for generating navigation instructions to the destination location, determining a current location of the portable electronic device according to received position signals, providing navigation instructions to the destination location according to the current location of the portable electronic device, and reminding the user of traffic rules related to intersections for a geographical location in which the portable electronic device is currently located when the portable electronic device detects that the portable electronic device is approaching an intersection, where reminding the user of traffic rules related to intersections comprises indicating a side of a second road the user should turn onto when making a turn from a first road onto the second road.

Abstract: Certain aspects provide a method for reducing interference in a cooperative MIMO system.

Abstract: A technique for improving the efficiency of downloading transmission data is disclosed. An information downloading apparatus downloads differing sets of information to predetermined groups to which a mobile terminal may belong. This apparatus includes a channel selecting unit for selecting from plural information channels an information channel for transmitting transmission data and a transmitting unit for transmitting transmission data using the selected information channel. The channel selecting unit selects an information channel so that sets of transmission data with differing destination addresses may be transmitted through differing information channels. The transmitting unit transmits to each group, through a control channel, information pertaining to whether a set of transmission data exists, the information channel to be used if the set of transmission data exists, and the data length of the set of transmission data. The control channel includes time slots that are associated with the groups.

Abstract: There is provided a method including obtaining, by a database entity, a-priori channel occupancy rate information of at least one channel from at least one of an entity of a primary system and an entity of a secondary system, wherein a database of the database entity includes information on white space channels, and availing the channel occupancy rate information to the secondary users in order to assist the secondary user to select a channel from the database.

Abstract: A transmitter module for unidirectional communication with a receiver module and a method using the aforementioned. The transmitter module includes a carrier detection portion, a source processing portion coupled to the carrier detection portion and a source transmission portion coupled to the source processing portion. The source processing portion can receive and process an information signal to produce a processed information signal in a manner such that an appropriate carrier signal is modulated with the information signal. The appropriate carrier signal can be based on the detection signals communicated from the carrier detection portion. The source processing portion can further process the information signal in a manner such that the processed information signal is associable with at least one of a unique code and an indication signal. The indication signal is associable with absence of communication of the at least one communication signal in a communication medium.

Abstract: The present disclosure relates generally to a system and method for use in a communications network. In one example, the method includes dividing a total available frequency band of a first node into a multiple subcarriers using orthogonal frequency division multiplexing (OFDM). A first portion of subcarriers is allocated to a first link coupling the first node with a second node and a second portion of the subcarriers is allocated to a second link coupling the first node to a third node.

Abstract: Systems, methods, devices, and computer program products are described for adaptive clustering. Serving cells may receive measurement information from mobile devices, and may each form reporting sets including measurement information for various cells. A CoMP (coordinated multi-point) control unit may receive the measurement information from each of a number of serving cells. The received measurement information may be aggregated for a population of the mobile devices. Based on the aggregated measurement information, cell clusters may be formed to perform coordinated transmissions, each including a different subset of the cells. An indication of the determined cell clusters may be transmitted to respective cells.

Abstract: Embodiments of the present invention provide a sensing threshold determining method and a sensor node device. The sensing threshold determining method includes: measuring, by a sensor node, a target frequency band and determining used frequencies in the target frequency band and received signal strength of the sensor node at the used frequencies, where the used frequencies in the target frequency band include frequencies being used or having been used by a primary user transmitter in the target frequency band; and determining, by the sensor node, a sensing threshold for unused frequencies in the target frequency band according to the received signal strength at the used frequencies, where the unused frequencies include frequencies that are not used by the primary user transmitter in the target frequency band. With the embodiments of the present invention, a sensor node can determine a proper sensing threshold for unused frequencies.

Abstract: A method and apparatus is disclosed to process a received single stream communication signal and/or a multiple stream communication. A communications receiver is configured to receive the received communication signal. A communications receiver determines whether the received communication signal includes a single stream communication signal or a multiple stream communication signal. The communications receiver determines whether a received communication signal complies with a known single stream communications standard. The communications receiver determines whether the received communication signal complies with a known multiple stream communications standard. The communications receiver decodes the received communication signal according to the known single stream communications standard upon determining the received communication includes the signal single stream communication signal.

Abstract: The present invention relates to a wireless transmitter comprising a transmitter radio unit working a wireless transmitter comprising a transmitter radio unit working in the millimeter wave frequency band using a directional antenna and a bidirectional radio unit working in a frequency range different from said transmitter radio unit and using an omnidirectional antenna. The invention further relates to a wireless receiver and a wireless relay.

Abstract: Discovery of safety and non-safety capable single-radio devices in vehicular wireless environments is made possible through the use a two-bit indicator. A first indicator is associated with a type C device. A second indicator is associated with a non-type C device within one hop of a type C device. A third indicator is associated with a non-type C device within two hops of a type C device. A fourth indicator is associated with a non-type C device within three hops or more (out of range) of a type C device. Discovery of safety and non-safety capable single-radio vehicular devices within a protection range in multiple-channel based wireless vehicular environments is thus made possible.

Abstract: Embodiments of the disclosure provide a system and method for providing channel feedback information (CFI) from a user equipment device to a base station. CFI is transmitted from the user equipment device on first and second communication channels. The user equipment device is operable to measure the channel rank of a downlink channel and to select a preferred channel rank that is used to configure the CFI that is transmitted to the base station. The base station is operable to use the preferred channel rank to interpret the CFI transmitted by the user end device.

Abstract: Provided is a wireless communication system between medical devices. A wireless communication apparatus between medical devices using a cognitive technology may receive, from an external frequency coordination database server, state information of frequencies that are available in a predetermined area, and store interference information associated with the frequencies. The communication apparatus may sense an external interference signal that affects the frequencies outside the predetermined area, and an internal interference signal that affects the frequencies within the predetermined area. The communication apparatus may determine a priority of each of the frequencies that are available in the predetermined area based on the interference information, the external interference signal, and the internal interference signal, and may determine a frequency to be assigned based on the priority.

Abstract: A method for selecting a channel for an access point (AP) in a Wireless Local Area Network (WLAN). The method includes the AP receiving network conditions of APs within the sensing range of a terminal sent by the terminal, and the AP selecting a channel based on the received network conditions. By forwarding the network conditions of other APs which can be detected by the terminal, the method of the present invention enables an AP to select a channel from the view of a terminal to avoid conflicts at the terminal, thereby improving the available bandwidth of the terminal, and giving a better experience to users.

Abstract: A device and method for executing a reserved function using time information extracted from a broadcasting data that provides a correct time in asynchronous mobile communication terminal are provided. The method of executing a reserved function in a mobile communication terminal includes: when a broadcasting function is executed, performing (1) extracting a time information from received broadcasting data, (2) calculating a time difference between a time of the extracted time information and a corresponding operating time of the mobile communication terminal, and (3) storing the calculated time difference as a time difference information; and if a reservation time for executing a specific function is set and when the operating time reaches the set reservation time based on the stored time difference information, executing the specific function.

Abstract: In a data reading apparatus performing contactless data communications with IC tags, a multi channel setting section sets a plurality of frequencies to be used for data communication with an IC tag in advance; a multi channel interference detecting section detects radio interference from other data reader in each of the set plurality of frequencies, prior to occurrence of a data communication request with an IC tag; a carrier sense lapse time holding section holds a period of no interference based on an interference detection result from the multi channel interference detecting section; a time comparing section determines whether the carrier sense lapse time held by the carrier sense lapse time holding section is on or above a predetermined carrier sense time upon occurrence of the data communication request with the IC tag, and permits the data communication with the IC tag when the carrier sense lapse time is on or above the carrier sense time; a transmitting section transmits data to the IC tag; and hence

Abstract: A method for protecting communications between an aircraft and a spacecraft in outer space including flying the aircraft in the earth's atmosphere at an altitude above 40,000 feet from the earth, and preferably above 50,000 feet, and transmitting a signal from the aircraft to the spacecraft having a frequency within a range of 50-70 GHz. The method includes selecting the frequency of the signal based on the altitude of the aircraft and the elevation angle between the spacecraft the aircraft.