Abstract: Distributed antenna systems (DASs) can include a plurality of spatially separated remote antenna units. According to at least one example, a first group of remote antenna units can simulcast downlink transmissions on a first carrier with a particular sector identity (ID). A second group of remote antenna units, including at least one different remote antenna unit from the first group, can simulcast downlink transmissions on a second carrier with the same sector ID. According to at least one other example, two or more remote antenna units which include respective coverage areas that are non-adjacent to one another can be employed to simulcast downlink transmissions.

Abstract: A system that facilitates antenna selection and pilot reduction in a multi-antenna system is provided. During operation, in response to an activating event, the system performs a full pilot transmission by transmitting pilot signals through all available transmit antennas at a base station. The system then determines the selected subset of transmit antennas by receiving lists of selected antennas from mobile stations associated with preferred users, wherein a given mobile station selects a list of antennas in response to pilot signals received during the full pilot transmission. The system then combines the received lists to produce the selected subset, wherein the selected subset includes all antennas which appear in the received lists of selected antennas. Next, during normal system operation, the system periodically performs a selected pilot transmission by transmitting pilot signals through a selected subset of the available transmit antennas.

Abstract: The present invention provides an apparatus and method of reporting logged measurements in a wireless communication system. User equipment receives an MDT (Minimization of Drive Tests) configuration from a base station, and logs a measurement on the basis of the MDT configuration in order to collect logged measurements. The user equipment determines whether the logged measurement needs to be reported. If it is determined that the logged measurement needs to be reported, the user equipment transmits to the base station a report indicator indicating the need for reporting of the logged measurement.

Abstract: Various example embodiments are disclosed relating to feedback and link adaptation techniques for wireless networks. According to an example embodiment, an apparatus may include a processor or controller. The controller may be configured to determine a channel quality indication (CQI) value for each of a plurality of wireless sub-channels, discard any of the CQI values older than a threshold time, leaving a set of current CQI values, determine a percentile CQI value based on the set of current CQI values, and transmit the percentile CQI value to an infrastructure node. The infrastructure node, may, for example, determine or select one or more data transmission parameters, such as a modulation scheme and/or coding rate, based at least in part on the received percentile CQI value.

Abstract: The present invention discloses a method of a terminal to reduce interference between cells in a multicell system. In more detail, the method includes: receiving information on at least one adjacent base station from a serving base station; receiving a reference signal from the at least one adjacent base station on the basis of the information on the at least one adjacent base station; measuring interference for each transmitting antenna of the at least one adjacent base station by using the reference signal; and transmitting interference information on the each transmitting antenna to the serving base station.

Abstract: A telecommunications system including a plurality of repeater nodes, each repeater node having a transceiver unit operable to transmit and receive data to or from one or more other of the repeater nodes or a control node or a mobile device within a predetermined range. The control node operable to transmit data to and receive data from the mobile device via the repeater nodes using a time frame divided into a plurality of time slots. The time slots of the time frame are allocated to the repeater nodes to the effect that each repeater node transmits to another repeater node in one of the upstream or the downstream directions in a time slot which is a minimal time from the time slot in which the other repeater node transmits in the upstream or downstream direction.

Abstract: A wireless communications system is described which comprises a plurality of base stations, each comprises at least one beam generating means for generating narrow spatial beams for communicating with respective subscriber devices located along a direction to which the respective narrow beam is currently directed. The system's transmission resources are allocated so that a substantial part of the resources allocated to each of the beam generating means is different from a substantial part of transmission resources allocated to any of the angularly adjacent beam generating means at the respective base station and are different from the substantial part of the resources allocated to beam generating means associated with adjacent base stations and directed towards geographical areas located in a proximity to the geographical area towards which the respective narrow beam is directed.

Abstract: A wireless communication apparatus is capable of improving communication efficiency by reducing the amount of control information transmitted. A channel quality information extraction section extracts CQI's from a received signal. An allocation control section allocates subcarriers for every communication terminal apparatus and selects a modulation scheme in such a manner that required transmission rate is satisfied for each communication terminal apparatus based on required transmission rate information, etc. and CQI's for communication terminal apparatus of each user. A required subcarrier number determining section decides the number of subcarriers allocated to every communication terminal apparatus so as to satisfy the required transmission rate for each communication terminal apparatus. A required subcarrier number information generating section generates information for the number of subcarriers allocated to every communication terminal apparatus.

Abstract: An example system includes a plurality of wireless communication elements and a controller. The plurality of wireless communication elements are configured to provide wireless service to a geographic area of interest, each wireless communication element comprising at least an antenna port or at least one antenna. The controller is configured to control the wireless communication elements, wherein the controller is configured to determine respective ones of the wireless communication elements that are to be activated or not activated.

Abstract: The technology described automatically resolves cell identity collisions/conflicts in a cellular radio communications network. A detecting node determines that a first cell identifier associated with a first conflicting cell is the same as a second cell identifier associated with a second conflicting cell. One of the first and second conflicting cells is selected to change its cell identifier. A different cell identifier is determined for the selected cell. The different cell identifier is then provided to other cells and preferably to user equipment (UE) terminals without disrupting ongoing UE communications.

Abstract: Briefly, in accordance with one embodiment, a method of transmitting signals is provided. Signal waveforms are transmitted from at least two respective sectors. The at least two respective sectors are from at least two different sets of a superset of sectors. The transmitted signal waveforms include signal waveforms at least nearly mutually orthogonal at least along a particular signal dimension. An advantage of such an embodiment, for example, is reduced signal interference.

Abstract: The invention relates generally to mobile communication networks. More particularly, the invention relates to interference management and carrier selection for transmitting data. There is provided a solution for improved selection of a cell-specific base carrier, the solution utilizing a timing framework for the carrier selection. The solution includes determining a maximum allowed time duration, and performing within the determined maximum allowed time duration: obtaining information related to one or more selected carriers from at least one neighboring base station, selecting the at least one cell-specific base carrier for data transmission on the basis of the obtained information, and informing the at least one neighboring base station of the selected cell specific base carrier.

Abstract: A disclosed transmission apparatus includes a multiplexing portion that multiplexes a common pilot channel, a shared control channel, and a shared data channel; a symbol generation portion that performs an inverse Fourier transformation on the multiplexed signal so as to generate a symbol; and a transmission portion that transmits the generated symbol. The multiplexing portion multiplexes the shared control channel including control information necessary for demodulation of the shared data channel including a payload and the common pilot channel to be used by plural users in a frequency direction, and the shared data channel in a time direction with respect to the common pilot channel and the shared control channel. Even when the number of symbols composing a transmission time interval (TTI) is reduced, transmission efficiency of channels excluding the common pilot channel can be maintained by reducing insertion intervals of the common pilot channel accordingly.

Abstract: Provided is a setting method for the usable resource for a communication terminal which, while suppressing an inter-adjacent-cell interference, improves a selection flexibility for a band for the communication terminal subjected to a strong influence of the adjacent-cell interference.

Abstract: A method of inter-cell interference coordination is provided for UE measurements and network access procedure. In a first embodiment, a UE in idle mode performs measurements on received radio signals applying a simplified radio resource restriction for interference coordination. The UE determines the restricted radio resource without receiving explicit measurement configuration. In a second embodiment, during various phases of a network access procedure, the UE indicates its interference status and/or additional interference information to its serving base station to enhance interference coordination. In a third embodiment, the UE in connected mode performs measurements on both interference-protected transmission resources and non-interference-protected transmission resources. The UE measurement results are used for scheduling, radio link monitoring, and/or mobility management to increase radio spectrum efficiency and to improve user experience.

Abstract: A method is disclosed of scheduling up-link transmissions for a number of terminals of a wireless communication system into a number of groups, wherein each group comprises terminals intended for simultaneous up-link transmission during a respective period of time. A subset metric may be calculated for each of a number of subsets of terminals based on transmissions received from the terminals of the subset. The subset metric is indicative of a simultaneous transmission suitability measure for the terminals of the subset. The subsets may be processed in subset metric order, starting with the subset having a subset metric indicating a least suitability of simultaneous transmission. During the processing, each terminal of the subset that is not already scheduled in a group may be scheduled in a group that does not already comprise another terminal of the subset.

Abstract: Methods and systems are provided for allocating frequencies in a radio access network (RAN) that includes a plurality of radio nodes each associated with a cell and a services node operatively coupled to the radio nodes. In accordance with the method, the radio nodes (RNs) in the RAN are divided into a plurality of clusters of RNs. A fractional frequency reuse (FFR) pattern is generated for each cluster. Transmission resources are allocated to the radio nodes in each cluster in accordance with the respective FFR pattern that is generated for each cluster.

Abstract: A micro-cell base station subsystem at a premises of an enterprise includes a base transceiver system configured for wireless communication with a mobile station over a frequency band allocated for mobile traffic in a macro cellular network. A communication interface is configured to send and receive communications for one or more mobile stations when at the premises via a packet data network. A controller coupled to the base transceiver system is configured to operate the micro-cell base station subsystem to appear as a base station similar to a base station of the macro cellular network, including enabling mobile station registration. A softswitch coupled to the packet data network enables mobile station registration with the macro cellular network through the micro-cell base station subsystem.

Abstract: A mobile communication system including: a first wireless base station; a second wireless base station located within a service area of the first wireless base station and configured to have a service area smaller than the service area of the first wireless base station; a wireless terminal configured to couple to the first or second wireless base stations; and a communication control apparatus; wherein the communication control apparatus controls adjustment of communication parameters of the first wireless base station, instructs the second wireless base station whose communication parameters have been changed to measure a wireless quality of the first wireless base station when changes to the communication parameters of the first wireless base station have occurred, obtains the wireless quality measured by the second wireless base station, and determines whether the communication parameters of the first wireless base station were adjusted based on the wireless quality.

Abstract: A system is provided for overlapping cells for wireless coverage in a cellular communication system. The system includes a beam-weight generator and beamformer coupled to the beam-weight generator. The beam-weight generator is configured to generate a plurality of beam weights including at least first and second sets of beam weights. And the beamformer is configured to apply the first and second sets of beam weights to signals in a cellular communication system. The cellular communication system provides coverage over a geographic region divided into cells arranged in overlapping first and second layers of cells having criteria optimized for respective, distinct first and second types of services, or communication by respective, distinct first and second types of user terminals. In this regard, the criteria are reflected in the first and second sets of beam weights.

Abstract: A radio detector may detect the presence of safeguarded radio frequency signals and one or more devices associated with a first network regarding the presence of the safeguarded radio frequency signals. The radio detector may be implemented as part of a device coupled to the first network, an accessory, a stand-alone detector, or as part of an infrastructure component. The radio detector may transmit a message regarding the detection of safeguarded radio frequency signals using any variety of messages, including a tone map, amplitude map, beacon message, host communication, tone mask, or the like.

Abstract: The technology in this application reduces the maintenance effort and expense to monitor the performance of a cellular radio access node (e.g., a relay or repeater) by having the cellular radio access node automatically perform radio performance monitoring on itself and providing some kind of indication of its status to an operations and maintenance node. The cellular radio access node monitors performance of a set of one or more radio characteristics of a received radio signal received by the cellular radio access node or a transmitted radio signal transmitted by the cellular radio access node and determines whether the performance exceeds an associated predetermined threshold. The cellular radio access node indicates a condition of the cellular radio access node for the operations and maintenance node based on the monitored performance. The cellular radio access node may take independent action, e.g., shutdown, restart, reduce transmit power, etc., if a monitored condition is exceeded, e.g.

Abstract: Applications executed out of router memory may acquire additional bandwidth that is not being used by other applications, in order to speed up network traffic. Scavenging may occur up to a point where current congestion is detected, at which point any scavenged bandwidth is relinquished and the application returns to its prescribed limit. After current congestion is mitigated, scavenging may occur up to a limit below the point where congestion was detected. After a predetermined interval, additional scavenging may occur beyond this limit until a preset bandwidth limit is reached.

Abstract: A radio communication system including a relaying apparatus and a base station, at an installment of a new base station, a parameter is autonomously adjusts a parameter to maintain a communication of the relaying apparatus. The new base station transmits a radio signal while increasing a transmission power, and the relaying apparatus, upon detecting the radio signal, transmits a signal indicating detection of the signal to an existing base station. The existing base station, upon receiving the signal indicating the detection, reduces an transmission power thereof to a minimum power to maintain a communication with a relaying apparatus and adjusts the parameter to set the transmission power to the minimum transmission power. The new base station, based on the transmission power at a time when the relaying apparatus has detected the radio signal, sets the parameter of the transmission power.

Abstract: A conventional wireless device constantly measures the signal strength of its server base station and the strength of signals from surrounding base stations for handoff purposes. The wireless device transmits this information to its serving base station, which discards the information a short time afterward, following handoff. The present system and method store the formerly discarded information in one of several existing network elements or in a separate computer system. This information is used to generate a carrier to interference ratio, which indicates the level of interference between station pairs, and to also generate a carrier to interference matrix, including identifying potential interference for each station pair. The frequency of occurrences during predetermined desired periods of time and the volume of traffic affected by each level of interference may also be calculated. This provides comprehensive, continuous, real-time information for wireless frequency planning.

Abstract: A cellular communications system is described in which a mobile cellular device can, if necessary, obtain cell measurements for cells contained within a first cell list after it has received a second cell list. The mobile device then reports the cell measurements for cells within both lists so that a best candidate cell is less likely to be discarded in a cell handover procedure. A network node is also disclosed that can receive cell measurements for cells within a first cell list after the node has issued a second cell list. The node then uses the received cell measurement data to control a handover procedure.

Abstract: A communications node operable to communicate with another communications node over a communications channel having a plurality of frequency resources, the communications node includes data defining a division of the communications channel into a plurality of contiguous sub-bands each having N frequency resources, wherein each frequency resource in a sub-band has a corresponding frequency resource in each of the other sub-bands, data defining an initial allocation of the frequency resources, a resource determination module operable to apply a frequency shift to the initially allocated frequency resources in accordance with a frequency hopping sequence to determine frequency resources to use for communicating information with the other communications node, wherein the frequency shift applied moves the initially allocated frequency resources to corresponding frequency resources in another sub-band, a transceiver for communicating information with the other communications node using the determined frequency reso

Abstract: A communications node includes data defining a division of a communications channel into a plurality of contiguous sub-bands each having N frequency resources, data defining an initial allocation of the frequency resources, a resource determination module operable to apply a frequency shift to the initially allocated frequency resources in accordance with a frequency hopping sequence to determine frequency resources to use for communicating information according to the following: y={x+a(t)N} mod NRB where NRB is the total number of frequency resources in the transmission band; N is the number of contiguous frequency resources in each sub-band; x is the initially allocated frequency resource; y is the frequency hopped resource; t is a time counter; a(t) is the frequency hopping shift applied at time point t, and is an integer value from the set {0, 1, . . . , S?1}; and S is the number of sub-bands; and a transceiver.

Abstract: Systems and method for allocation and optimization of sub-carriers by a plurality of cells based, at least in part, on aspects of user equipment utilizing the wireless communication network. A wireless network management component classifies user equipment with at least a portion of the wireless communication network as cell edge user equipment or cell central user equipment. Based on the classification of the user equipment, the management component determines resource requirements for the cells. The resource requirements can include the designation of sub-carriers as primary sub-carriers and associated power levels based on the designation for the group of cells in the wireless network. Additionally, each cell within the wireless network can utilize the designation of sub-carriers and association of power levels in configuring communications with user equipment.

Abstract: The cognitive radio system and method uses a wideband chirp signal for characterization of the spectra that a mobile radio may use. A cognitive radio base station broadcasts the low power reference wideband chirp signal with bandwidth covering the sensed spectrum. At the receiver, spectral resolution in the presence of white noise is achieved by cross-correlating the chirp signal with a locally generated copy of itself (i.e., matched filtering). A Fast Fourier Transform (FFT) is applied to the output of this matched filtering. The FFT output is fed to a decision circuitry, where a threshold value is set to decide the minimum amplitude of utilized frequencies. This process eases sensing computational complexity and improves the quality of sensing, thereby offering enhanced cognition at the cognitive radio receiver.

Abstract: Techniques are disclosed for reducing channel information feedback in communication networks. For example, a method comprises the following steps. A set of mobile terminals and a set of base stations designated to participate in a coordinated multipoint transmission protocol in a communication network are identified. One or more unique downlink communication resource blocks are assigned to each designated mobile terminal that is located in a given first sector of a designated base station. As such, each designated mobile terminal in the first sector of the designated base station: (i) performs a channel state estimation process in response to respective signals received from the designated base stations in the one or more unique downlink communication resource blocks assigned to that designated mobile terminal; and (ii) transmits resulting channel state information back to at least one of the designated base stations.

Abstract: A relay and distribution apparatus is provided for a cellular communication system. The relay and distribution apparatus includes an antenna system configured to lay down beams in overlapping first and M second N-cell frequency reuse patterns. The first frequency reuse pattern may be for communication of control channels of a cellular communication system, and the second frequency reuse patterns may be for communication of traffic channels exclusive of control channels of the cellular communication system. The second frequency reuse patterns may be staggered with one another. And cells of the second frequency reuse patterns may have a size only a fraction of which is for transmission of traffic channels any of which may be assignable through a control channel of the first reuse frequency pattern.

Abstract: A radio communication system includes a first radio base station, second radio base stations, and mobile stations. Each of the mobile stations measures a first reception characteristic value and a second reception characteristic value for respective radio waves. The first radio base station determines the radio base station to which each of the mobile stations should connect, according to the first reception characteristic value, and classifies the mobile stations into a first mobile-station group and a second mobile-station group according to the second characteristic values.

Abstract: A system is provided for overlapping cells for wireless coverage in a cellular communication system. The system includes a beam-weight generator and beamformer coupled to the beam-weight generator. The beam-weight generator is configured to generate a plurality of beam weights including at least first and second sets of beam weights. And the beamformer is configured to apply the first and second sets of beam weights to signals in a cellular communication system. The cellular communication system provides coverage over a geographic region divided into cells arranged in overlapping first and second layers of cells having criteria optimized for communication by respective, distinct first and second types of user terminals. In this regard, the criteria are reflected in the first and second sets of beam weights.

Abstract: A source node selects a plurality of original data components to transfer to at least one destination node. A plurality of transmitting nodes cooperatively encodes the original data components to generate a plurality of subspace coded components and a corresponding code matrix. Each of the transmitting nodes transmits a subset of the plurality of subspace coded components and corresponding code matrix, wherein at least one of the transmitting nodes has a rank that is insufficient for decoding the plurality of subspace coded components. A destination node may employ a plurality of receiving nodes to cooperatively receive a plurality of subspace coded components and their corresponding code vectors, wherein the rank of at least one of the receiving nodes is insufficient for decoding the coded components. The destination node builds up the dimension of the subspace spanned by code vectors it collects from the receiving nodes so it can decode the coded components.

Abstract: A fractional frequency reuse method for assigning physical resource units of a contiguous frequency band to sectors of cells is disclosed.

Abstract: A method and an apparatus for switching a Frequency Assignment (FA) by a base station in a wireless communication system are provided. The method includes, upon detecting movement of the base station, communicating with a mobile terminal using a first FA via a first FA-transceiver among a plurality of FA-transceivers which process signals transceived via each of the plurality of FAs, and selecting, upon detecting a change in a wireless environment caused by the movement, a second FA from among the plurality of FAs, operating a second FA-transceiver which processes signals transceived via the second FA, transmitting, to the mobile terminal, a scanning-instructing message for instructing the reference signal transmitted via the second FA to be scanned, and switching the first FA to the second FA in accordance with the result of the scanning received from the mobile terminal in response to the scanning-instructing message.

Abstract: A graphical user interface displays a proposed site plan of one or more new base stations with respect to existing network infrastructure in a geographical region. While in the field, an installation specialist can perform an in-person survey of the geographical region to determine whether a proposed location is suitable for installation of a wireless base station. The installation specialist may identify an obstacle that would inhibit a newly proposed wireless base station from providing desired coverage if installed at the proposed location. Via input to the graphical user interface, the installation specialist proposes an alternative location in which to install the new base station. A processor performs a validity check and provides feedback indicating whether installation of the new base station at the alternative location is acceptable. The graphical user interface also can support collection of site survey data to monitor progress of the installation.

Abstract: A method, NodeB and User Equipment for TDD operation in a communication system operating in TDD mode in a frequency band allocated for FDD operation. Preferably, operation is in TDD uplink and downlink mode in a first frequency band designated or normally used for FDD uplink communication, and in TDD downlink-only mode in a second frequency band designated or normally used for FDD downlink communication. The invention provides the following advantages: Provides a flexible method to deploy a time division duplex architecture in frequency division duplex spectrum. Allows flexible use of system capacity by adjusting the uplink and downlink capacity split. Removes previous FDD duplex restrictions.

Abstract: A method, NodeB and User Equipment for TDD operation in a communication system operating in TDD mode in a frequency band allocated for FDD operation. Preferably, operation is in TDD uplink and downlink mode in a first frequency band designated or normally used for FDD uplink communication, and in TDD downlink-only mode in a second frequency band designated or normally used for FDD downlink communication. The invention provides the following advantages: Provides a flexible method to deploy a time division duplex architecture in frequency division duplex spectrum. Allows flexible use of system capacity by adjusting the uplink and downlink capacity split. Removes previous FDD duplex restrictions.

Abstract: The present invention relates to methods and apparatuses for controlling cell configuration in a cellular network, wherein a cell identity and a local cell spectrum resource entity or profile are assigned to an access device in response to a result of sensing a local radio environment at said access device to detect possible neighbor cells. The assigned local cell spectrum resource entity or profile is used to allocate cell spectrum resource from a shared multi-operator spectrum to said access device.

Abstract: In the present invention, a wireless transmission system includes a plurality of mobile stations in a cell area, and a base station. The base station divides each of an uplink frame and a downlink frame into a plurality of blocks, assigns a specific one of the plurality of blocks to each of the plurality of the mobile stations, assigns a specific frequency channel to the mobile station, and notifies the specific block and the specific frequency channel to the mobile station. The length of each of the plurality of blocks is optional, and a sum of the lengths of the plurality of blocks is equal to the length of the frame.

Abstract: To start secondary use of a spectrum without causing an adverse effect on a communication service for primary usage, provided is a communication control method including the steps of acquiring data related to a communication environment surrounding a first communication device at the first communication device, determining that a second communication service using a part or whole of a spectrum assigned to a first communication service is available when the acquired data related to the communication environment satisfies a first condition, and permitting usage of the second communication service when the data related to the communication environment satisfies a second condition at the first communication device or a second communication device.

Abstract: The present invention relates to a segment identifier detection method performed by a terminal if a segment being administrated by a base station in a wireless communication system has the frequency reuse factor of 3 and 2 at the same time. In particular, the method comprises: acquiring a cell identifier and a segment identifier corresponding to the cell identifier from a secondary advanced preamble (SA-preamble) that has been received from the base station; determining a frequency reuse factor of the base station; and if the frequency reuse factor is 2 and the obtained segment identifier is a third segment identifier, transforming the segment identifier corresponding to the cell identifier into a first segment identifier or a second segment identifier.

Abstract: Systems and methods for frequency reuse in a multi-cell deployment model of a wireless backhaul network are shown. According to embodiments, a wireless backhaul network includes a plurality of cells, each of which includes one or more hubs supporting wireless backhaul communication utilizing a cell deployment geometry and wireless communication frequency assignments adapted to facilitate heterogeneous cell configurations within the wireless backhaul network. In particular, embodiments provide frequency planning for initial deployment, build out, and expansion of a plurality of cells providing wireless backhaul communication so as to implement a predetermined wireless frequency reuse pattern providing alternating utilization of a plurality of wireless communication frequencies by the cells of the backhaul network.

Abstract: An apparatus and method for estimating a carrier to interference and noise ratio (CINR) in a mobile communication system based on a fractional frequency reuse are provided. The method includes receiving a report on CINR information on a common zone from a mobile station (MS) allocated a restricted zone, calculating a received signal power value using a CINR value and an interference level value for the common zone of the MS, and estimating a CINR value for a restricted zone using the received signal power value of the MS and an interference level for the restricted zone.

Abstract: Embodiments relate to positioning of a user equipment in a communications network. A method in a user equipment for performing positioning measurement comprises receiving positioning assistance data from a positioning node. The positioning assistance data comprises a plurality of reference cells, wherein each reference cell may be associated with at least one respective frequency, and a set of neighbor cells comprising at least one neighbor cell. The method further comprises, for each reference cell comprised in the plurality of reference cells, identifying a respective associated set of neighbor cells, wherein the reference cell and the respective associated set of neighbor cells define a group. Furthermore, the method comprises performing at least one positioning measurement using the positioning assistance data for each respective identified group.

Abstract: A method and apparatus for transmitting a ranging signal, and a method and apparatus for receiving the ranging signal are disclosed. A ranging channel (RCH) for transmission of a ranging signal is allocated to the reuse-1 partition. However, the ranging channel (RCH) is allocated to the power-boosted reuse-3 partition only when there is no reuse-1 partition.

Abstract: In a parameter storage device, an offset value corresponding to a moving state (moving speed) and a serving frequency are stored. A parameter identifier reads from the parameter storage device an offset value corresponding to a serving frequency and a moving state. A measuring unit measures a radio communication quality of an inter-frequency cell. A measurement controller adds the offset value to the radio communication quality, to generate control information. The control information is transmitted via a transmitter to a network.

Abstract: A communications system network that enables secondary use of spectrum on a non-interference basis is disclosed. Each secondary transceiver measures the background spectrum. The system uses a modulation method to measure the background signals that eliminates self-generated interference and also identifies the secondary signal to all primary users via on/off amplitude modulation, allowing easy resolution of interference claims. The system uses high-processing gain probe waveforms that enable propagation measurements to be made with minimal interference to the primary users. The system measures background signals and identifies the types of nearby receivers and modifies the local frequency assignments to minimize interference caused by a secondary system due to non-linear mixing interference and interference caused by out-of-band transmitted signals (phase noise, harmonics, and spurs).