Abstract: There is disclosed a system and method for improving wireless system capacity by reducing collisions where the Signal to Interference Ratio (SIR) is high in systems having a channel reuse of 1. By ordering the channel assignment in each of the interfering cells according to a pattern, for example, according to the distance from a base station (determined by power levels), the mobile stations will become paired on the same channel in a manner to reduce interference between them. In one embodiment, this intelligent assignment is accomplished by assigning mobile stations in one cell such that the mobile station having the strongest signal is assigned channel A while in the interfering cell the mobile station with the weakest signal is assigned to channel A. In another embodiment, certain preferred mobile stations are assigned either interference-free channels or channels paired with weak interference mobile stations.

Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.

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 S 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 with the other communications node, the frequency shift corresponding to an integer multiple of the number N frequency resources in each sub-band, the integer multiple being an integer from the range zero to S, and a transceiver for communicating information with the other communications node using the determined frequency resource.

Abstract: Methods and apparatus supporting peer to peer communications are discussed. A base station, serving as an access node for wireless terminals also communicates information supporting peer to peer communications. A base station transmits a beacon signal conveying information about a peer to peer frequency band and also receives user data from a plurality of wireless terminals, using the base station as a current point of network attachment. In some embodiments, the beacon signal is transmitted into the same frequency band being used for access node based communications and identifies a different frequency band which is to be used as a peer to peer frequency band. Alternatively, or in addition, in support of peer to peer communications, a beacon signal transmission apparatus, a free standing device which doesn't transmit user data, transmits a sequence of beacon signal bursts, each beacon signal burst including at least one high power beacon symbol.

Abstract: The present invention provides a Direct Link Setup (DLS) method performed by an Access Point (AP) in a Wireless Local Access Network (WLAN) system. The method includes receiving a DLS request frame, requesting to set up a Direct Link (DL) from a DLS initiator, transmitting an Async-DLS request frame including information about a channel on which the DL is scheduled to set up to a DLS responder indicated by the DLS request frame, receiving a DLS response frame from the DLS responder in response to the Async-DLS request frame, and transmitting an Async-DLS response frame, including the information about the channel for which the DLS will be performed in the DLS response frame, to the DLS initiator.

Abstract: Dynamic channel reuse in multi-access communication systems. A first station in a communication network may receive a transmission over a communication medium. The first station may generate a reuse determination based on information from the received transmission. The reuse determination may be usable with at least one other reuse determination to coordinate reuse of the communication medium.

Abstract: A method of allocating radio resources in a wireless communication system includes dividing the overall frequency band into a plurality of frequency blocks including at least one subcarrier in a frequency domain, and allocating an allocation unit including some of the plurality of frequency blocks to a user equipment (ITE), wherein the allocation unit is any one of a localized allocation unit including frequency blocks contiguous in the frequency domain and a distributed allocation unit including frequency blocks distributed in the frequency domain. Allocation schemes of subcarriers are freely used suitably according to channel environments of users, the scheduling effect of radio resources can be enhanced.

Abstract: An apparatus and method for dynamic frequency assignment to a low-power Base Station (BS) in a wireless communication system are provided. The method includes receiving a Received Signal Strength Indication (RSSI) measurement result for the whole Frequency Assignment (FA) and an available FA set of the BS from the BS newly entering a network, selecting an FA having a minimum RSSI among FAs included in the available FA set, and assigning the FA having the minimum RSSI to the BS.

Abstract: The method for redundancy of a wireless communication network according to the embodiment of the present invention includes: partitioning the same frequency band of a first base station transceiver subsystem and a second base station transceiver subsystem, which form redundant cell coverage, into a plurality of resource blocks; partitioning each of the partitioned resource blocks into a first frequency partition (FP) and a second frequency partition which are configured to have the same structure as each other; and transmitting and receiving, by the first base station transceiver subsystem, data using a first resource block allocated to the first frequency partition and by the second base station transceiver subsystem, data using a second resource block allocated to the second frequency partition.

Abstract: A method and apparatus for obtaining overhead information by a mobile is provided herein. During operation, the mobile will be communicating with a first system on an active data channel. The mobile node will be able to measure pilot PN phase and amplitude for a second system that is a potential candidate to handoff and will have that information available. The data channel of the active service is used to query a proxy server that provides overhead information for the second base station. More particularly, when PN phase and amplitude information is provided to the proxy server, the proxy server will identify the base station and provide the overhead information needed to associate with the second base station.

Abstract: An operation method of a radio communication station is provided. The operation method of a radio communication station, the operation method including: transmitting a basic pilot signal to at least one terminal located in a coverage of a preoccupied system; and transmitting a cognitive radio (CR) pilot signal.

Abstract: A method includes determining a signal strength value for a first received signal received from a first station in a first network. The first received signal is received in the first network through a shared communication medium that is shared with a second network. The method includes receiving an indicator of a signal strength value determined for a second received signal from a second station in the second network. Based on the signal strength value for the first received signal and based on the indicator of the signal strength value determined for the second received signal, a detection threshold is selected such that, in response to a third received signal having a signal strength in excess of the detection threshold, the third received signal is processed according to a protocol of the first network and is not processed according to a protocol of the second network.

Abstract: A services node or central controller or coordinator is provided that dynamically computes fractional frequency reuse allocation among user equipment in a radio access network. The central controller or coordinator communicates the fractional frequency reuse allocation and configures the individual MAC schedulers within each radio node in the radio access network. Inputs to the central coordinator may include its serving radio node, a detected set of radio nodes, and information about user equipment buffer status both in the downlink and uplink. In one implementation, interference graphs are constructed for downlinks and uplink separately and the same are used with a heuristic independent set algorithm to compute the frequency allocation.

Abstract: The Invention is directed to a mobile communications system having improved spectral efficiency. The invention is further directed to methods and apparatus to achieve this improved spectral efficiency. In the mobile communications system communication with a plurality of mobile terminals is provided by a base station. Within the system terminals are adapted to communicate with one or more adjacent similar terminals to establish groups of terminals, called micro-cells. Each terminal within a micro-cell receives signals from the base station and then performs a first processing step on these signals. These processed signals are shared with all the other terminals within the micro-cell. Each terminal then performs a second processing step on the information it has received from all the other terminals within the micro-cell which enables it to derive a signal intended for reception by that terminal.

Abstract: Embodiments of the present invention provide a signal transmission method, apparatus, and base station. The method includes: sending downlink signals through N sectors, where the N sectors are created by using M sectors used to receive uplink signals, and N>M. In the embodiments of the present invention, the base station creates N sectors by using M sectors used to receive uplink signals and sends downlink signals through the N sectors, so that the multi-sector technology is mainly used in the downlink and the multi-antenna technology is mainly used in the uplink. This may resolve an existing conflict between the uplink and the downlink when system capacity is being improved, thereby improving system capacity of a wireless communication network.

Abstract: A method may include distributing a interfered terminal; calculating an initial signal-to-interference power ratio and a data throughput of the interfered terminal; distributing interfering terminals and an interfering link base station; calculating a final transmitting power of the interfering terminal through power control between the interfering terminal and the interfering link base station; calculating a path loss and a collision factor between the interfered terminal and the interfering terminal; and calculating a final signal-to-interference power ratio and a data throughput of the interfered terminal. Accordingly, it is possible to analyze interference in consideration of a terminal use pattern in view of presence of hot spots, and to provide basic data for setting an effective emission transmitting power level of the terminal and a protection band between the terminals since the signal-to-interference power ratio and the data throughput can be calculated through interference analysis.

Abstract: A method for parameter management in a wireless cellular communications system, which includes a first base station and a second base station equipped for communications in the communications system, records one or more paging area parameters broadcast by a base station serving a neighbor cell of a cell served by the first base station. The paging area parameters form part of a relation of the first base station and are maintained by the first base station. The method further includes transferring the recorded paging area parameters from the first base station to the second base station.

Abstract: A base station device includes a processing unit that performs a base station process on a mobile terminal and a core network device; a cellular communication unit for connection to the mobile terminal; and a connection control unit, wherein the cellular communication unit receives a connection request message for connection to an external network from the mobile terminal, the base station processing unit replaces an access point name of the connection request message with “APN-L” and transfers the connection request message to a mobility management entity when the access point name indicating a local network is other than APN-L, and the connection control unit performs a radio bearer setting process between the mobile terminal and the connection control unit, based on a context setup request message in which the “APN-L”, having a bearer established, received from the mobility management entity is stored.

Abstract: A PCID conflict resolution procedure is implemented with the aid of a user terminal that is capable of detecting and reporting PCID conflicts between two neighboring neighbor cells. A base station in a serving cell configures measurement reporting by user terminals within the cell capable of reporting PCID conflicts. Once measurement reporting by one or more user terminals is configured, the base station will receive measurement reports from the capable user terminals. If a capable user terminal detects a PCID conflict, the user terminal will include an indication of the PCID conflict in the measurement report. When the base station receives a measurement report with an indication of a PCID conflict, the base station implements an autonomous PCID conflict resolution to resolve the PCID conflict.

Abstract: Provided are methods, corresponding apparatus and computer program products for interference coordination between a macrocell and a small cell. A method comprises receiving respective position information from at least one small-cell base station and at least one macrocell user equipment; calculating a distance between the at least one small-cell base station and the at least one macrocell user equipment based upon the respective position information; and determining, based upon the distance, whether to allow the at least one small-equipment cell base station to reuse radio resources used by the at least one macrocell user equipment. With the embodiments, the interference coordination can be improved and thus interference in small-cell transmission will be diminished due to efficient allocation and usage of the radio resources.

Abstract: Information is exchanged among multiple base stations by adaptively changing an allocation of radio resource of each base station, and reducing deterioration in a signal quality that is caused by interference of signals transmitted from multiple base stations. Communication with a terminal located in a cell center and communication with a terminal located in a cell edge are performed in different time zones. In addition, communication is performed such that time zones do not overlap in the cell edge between multiple neighbor base station devices. In addition, efficiency that is an index representing the number of bits transmittable per resource element is calculated using a scanning result of a terminal, and one base station that decides a radio resource allocation between cells decides radio resources to be allocated to a terminal located in a cell center and radio resources to be allocated to the cell edge using the efficiency information.

Abstract: The present invention includes a plurality of native cellular nodes configured to provide wireless connectivity to one or more ground-based wireless devices, each native node including a BTS having a transceiver configured to transmit a downlink signal to the ground-based devices at a native downlink frequency and receive an uplink signal from the ground-based devices at a native uplink frequency, a plurality of augmented nodes configured to provide connectivity to one or more airborne devices, each augmented node including an augmented BTS having a transceiver configured to transmit a downlink signal to the one or more airborne communications devices via an upwardly directed antenna at the native downlink frequency and receive an air-to-ground uplink signal from the airborne devices at a selected air-to-ground uplink frequency different from the native uplink signal frequency, wherein the native nodes and the augmented nodes are configured to operate on a common backhaul infrastructure.

Abstract: A radio base station eNB according to the present invention includes a CA controller unit 12 configured to determine a PCC and SCCs to be used for CA communications, and a receiver unit 11 configured to receive “Measurement Report” from a mobile station UE having detected a cell having a higher radio quality in a certain SCC than a predetermined threshold for a period of TTT or longer, the “Measurement Report” containing the radio quality of the detected cell. If the cell having the highest radio quality in a measurement object CC is not under the control of the radio station eNB, the CA controller unit 12 avoids use of the cell having the highest radio quality for SCC communications in the CA communications.

Abstract: A network controller including processing circuitry may be configured to receive dynamic position information indicative of a three dimensional position of at least one mobile communication node, compare fixed position information indicative of fixed geographic locations of respective access points of a network to the dynamic position information to determine a relative position of the at least one mobile communication node relative to at least one of the access points based on the fixed position information and the dynamic position information, and provide network control instructions to at least one network asset based on the relative position.

Abstract: A system and methodology that utilizes data collected by a femto access point (FAP) to identify and prioritize cell sites that can be acquired to improve indoor coverage of an existing communication network is provided. Moreover, the data can include femto network listen measurements that can be utilized to compare the macro coverage provided by the existing communication network with the radio coverage provided by a disparate communication network, for example, by the cell sites of an operator being considered for acquisition. In addition, a number of attachment attempts made to the FAP within a specified period can be calculated. Moreover, this information can be leveraged to make merger/acquisition decisions, including quantifying the number of sites of the disparate communication networks to operate and/or predicting the incremental performance gain opportunities that result due to the operation of the sites of the disparate communication networks.

Abstract: A method in a base station for assisting in a coordination of frequency band selections for interfering uplink transmissions in a cellular network. The base station selects a first frequency band and a second frequency band. The first frequency band is to be used in the first cell for uplink transmissions from which an estimated interference in a second cell exceeds a first threshold. The second frequency band is to be used in the first cell for uplink transmissions from which an estimated interference in a third cell exceeds a second threshold. The base station informs a serving base station of the second cell and a serving base station of the third cell about the selection, thereby assisting these base stations in coordinating their respective frequency band selection with that of the base station.

Abstract: The present invention relates to methods and arrangements in a wireless communication system supporting carrier aggregation and comprising a radio base station configured to broadcast system information in at least two cells. The method for the user equipment comprises receiving configuration information for an aggregation of the at least two cells from the radio base station, identifying a first of the at least two cells based on a configuration rule stating that the first of the at least two cells has a status that is different from the status of the remaining cells, and reading the broadcasted system information only in the identified cell. The method may also comprise obeying one or more parameters obtained from the read system information.

Abstract: A bootstrapping technique for wirelessly obtaining white space data that may be used to identify an available white space channel for connecting to a service. Portable wireless devices may collaborate to provide white space data to a device requesting such data. A requesting device transmits a request for the white space data using, for example, an unlicensed band. A device receiving the request may transmit a copy of the data to the requesting device. The transmitted copy may be obtained by the receiving device from a local data store or may be provided from a database server to which the receiving device is connected. In the later case the receiving device acts as a proxy between the database server and the requesting device. Once the white space data is received by the requesting device it may be used to select a channel for communication in the white space.

Abstract: An apparatus and method for setting transmit power of a compact Base Station (BS) in a wireless communication system are provided. In the apparatus and method a measurer measures a signal strength corresponding to each of one or more neighbor BSs while operating in a Mobile Station (MS) mode, a receiver receives a signal strength corresponding to each of the one or more neighbor BSs measured by one or more MSs from the corresponding one or more MSs, and a self-configuration controller sets a target signal strength based on the signal strength corresponding to each of the one or more neighbor BSs measured in the MS mode and controls a transmit power so that the signal strength corresponding to each of the one or more neighbor BSs measured by the one or more MSs substantially reaches the target signal strength.

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: Providing for cooperative sensing in wireless communications that improves user terminal throughput and minimizes interference is described herein. According to some aspects, a network entity, such as a base station, can assign a set of SUTs to measure a subset of wireless channels in a target frequency according to a cooperative sensing arrangement. In particular aspects, this assignment can be implemented so as to increase or maximize potential traffic throughput of those SUTs within the target frequency, in a given wireless time slot. In this manner, cooperative sensing can be structured so as to provide more efficient traffic communications within the target frequency.

Abstract: A method of controlling handover in wireless cellular networks of user equipment in a first cell unit which is to be disabled to a second cell unit which is to provide extended coverage for the, or part of the, first cell unit, where the cell unit of the first and second cell units is a cell or a cell sector, including selecting a part of the signal bandwidth or time-frequency resource units, previously designated for use in normal operation by the second cell unit, which does not overlap with that to be used by the first cell unit during the handover; and designating the selected part for use by the user equipment to be handed over from the first cell unit.

Abstract: A wireless communications system is described, which comprises a plurality of base stations and a plurality of subscriber devices.

Abstract: A computing system in which devices communicate wirelessly as secondary users in a band assigned to primary users. The computers communicate using new signals developed to reduce disruption to primary users of the band. The new signals may be produced by sensing, or otherwise determining, signals used by primary users and developing signals using a modulation scheme or other signal parameters that provides little disruption to primary users. These techniques make available to users unused and/or underused portions of the radio spectrum, such as whitespaces between television channels. The new signals may be generated by software defined radios within the computing devices or by switching between modulation schemes supported by conventional wireless network interface card.

Abstract: Disclosed is an adaptive partial frequency reuse method and system in a cellular mobile communication system. The adaptive partial frequency method includes the steps of: receiving interference feedback information transmitted from at least one terminal; determining if there is a terminal located in a cell boundary, based on the received interference feedback information; when there is the terminal located in the cell boundary, dividing the frequency band into multiple frequency sub-bands, and allocating different power to the respective multiple frequency sub-bands for each of the at least one base station; and providing data service to the terminal by using the power allocated the respective frequency sub-bands.

Abstract: The present invention is related to a network clustering device and a method for expanding communication coverage and increasing network capacity by mutually connecting homogeneous or heterogeneous wireless mobile communication networks. By including a plurality of RF transceiver units and a network performance measuring unit, various frequency bands already occupied by surrounding wireless mobile communication networks are coordinated with the network clustering device to avoid frequency interferences among networks, to expand the communication coverage of the homogeneous or heterogeneous wireless mobile communication networks with ease, and to prevent a degradation of a network performance.

Abstract: The suitability of a fixed or current mobile operating location for the receiver (19) in a data memory (13, 15) for picking up the consumption data (12) transmitted by a data radio channel in a wireless local data capture system (11) from consumption points (14) to a data memory (13, 15) can easily and reliably be qualitatively assessed in situ or for the purpose of remote diagnosis by virtue of a channel scan being initiated and the memory receiver (17) performing an RSSI measurement, which is preferably presented as a histogram (20) against current channel use. This renders permanent sources of interference and link budget problems in the data radio (particularly UHF) channel and also temporary sources of interference and collision problems in this channel identifiable and thereby avoids costly receiver location changes, without use of radio-specific specialist personnel, after a site has previously been selected for the receiver installation only empirically but inexpediently.

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 cellular communications system includes a plurality of base stations and a plurality of user devices. In use, each user device is associated with a base station and is operable to communicate with the associated base station over a communication channel having a plurality of frequency resources. Each user device has a respective initial allocation of said frequency resources. Each user device is operable to apply a frequency shift to its initially allocated frequency resource in accordance with a frequency hopping sequence. The user devices that are associated with the same base station are operable, in use, to use the same frequency hopping sequence and are synchronized with each other so that, at any point in time, a common frequency shift is applied by the user devices associated with the same base station. User devices associated, in use, with different base stations use different frequency hopping sequences.

Abstract: In a network containing a macro base station and wireless access points within the range of the macro base station, information from wireless access points are used to change the quantity of almost blank subframes delivered by the macro base station, adjust the cell range extension area of one or more of the wireless access points, or provide instructions to alter the number of wireless access points. The information is analyzed. The analysis allows determination of a capacity gain associated with using the wireless access points within an area associated with the macro base station and whether the capacity gain provides at least a threshold amount of gain permitting the macro base station and the wireless access points to provide service to mobile devices within the area.

Abstract: A communication unit comprises a receiver for receiving radio frequency (RF) signals from at least one wireless serving communication unit, and signal processing logic module arranged to decode information within the received RF signals is the at least one wireless serving communication unit. The signal processing logic module is further arranged to decode transmit power information in a received RF signal from the at least one wireless serving communication unit, and determine from the decoded transmit power information whether a transmission from the at least one wireless serving communication unit is suitable for use as a timing reference. If it is determined that the transmission from the at least one wireless serving communication unit is suitable for use as a timing reference, the communication unit synchronizes an operating frequency to the received RF signal of the at least one wireless serving communication unit.

Abstract: An access point (AP) and a mobile station in a wireless communication system and a method of controlling the same are provided. A method of controlling an AP in a wireless communication system includes: determining whether a transmission of a control message is needed; transmitting the control message via a first frequency band when the transmission of the control message is needed; determining whether a transmission of a data message is needed; and transmitting the data message via a second frequency band when the transmission of the data message is needed.

Abstract: A mobile communication method comprises a step of setting a restriction type by the femtocell radio base station #A in response to input of predetermined information to the femtocell radio base station #A, the restriction type indicating restricted processes to be applied to a mobile station UE belonging to the CSG #1 in the femtocell #1; a step B of notifying a mobile station UE in the femtocell #1 of the set restriction type by the femtocell radio base station #1; and a step of detecting processes restricted in the femtocell #1 on the basis of the notified restriction type, in a case where the mobile station UE belongs to the CSG #1.

Abstract: An inter-cell interference mitigation method in an orthogonal frequency division multiple access (OFDM)-based cellular system includes: dividing wireless resources into a resource group for fractional frequency reuse and a resource group for removing inter-cell interference; and re-dividing the resource group for fractional frequency reuse into particular resource groups numbering the same as a number of cell types of fractional frequency reuse, and applying a maximum transmission power to a particular resource group according to a cell type for fractional frequency reuse.

Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.

Abstract: A wireless base station for performing wireless communication with a wireless terminal using a frequency bandwidth different from another adjacent wireless base station in a first time period and performing wireless communication with a wireless terminal using a frequency bandwidth shared with another adjacent wireless base station in a second time period and including a control unit that does not change a burst profile to be applied to an uplink transmission or assigns a burst profile corresponding to a wireless transmission rate equal to or less than a wireless transmission rate corresponding to an applied burst profile with respect to a wireless terminal used for wireless communication in the first time period.

Abstract: A method and apparatus for allocating subcarriers in an orthogonal frequency division multiple access (OFDMA) system is described. In one embodiment, the method comprises allocating at least one diversity cluster of subcarriers to a first subscriber and allocating at least one coherence cluster to a second subscriber.

Abstract: A system and method for providing augmented reality (AR) information to a mobile communication terminal in a mobile communication system is provided. If the mobile communication terminal is determined to have entered a service cell providing AR information, the mobile communication terminal transmits an AR information request including position information to a server. Upon receiving the AR information request signal, the server determines AR information including at least one tag pattern provided in the service cell and information associated with the tag pattern and transmits the AR information to the mobile communication terminal.

Abstract: A radio communications system comprising a plurality of cells, each containing a base station and mobile terminals. Said system is able to manage group communications between different mobile terminals, allocating during the establishment of a group communication for each cell an uplink channel contained in an uplink carrier frequency and a downlink channel contained in a downlink carrier frequency. The system is able to manage a number of downlink channels per downlink carrier frequency strictly greater than a number of uplink channels per uplink carrier frequency.

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.