Class / Patent application number | Description | Number of patent applications / Date published |
455447000 | Frequency reuse scheme | 53 |
20080207209 | CELLULAR MOBILE RADIO COMMUNICATION SYSTEM - A method of autonomously generating neighboring cell information in a cellular mobile radio communication system including: transmitting, by a first base station, a measurement radio signal through a radio channel for radio field intensity measurement; measuring a radio field intensity of the measurement radio signal received from the first base station; determining based on the measured radio field intensity whether the first base station is a neighboring cell; registering identification information of the first base station in second office data of neighboring cells possessed by itself when the first base station is determined as the neighboring cell; obtaining first office data possessed by the first base station based on the identification information; and reflecting the first office data obtained from the first base station as neighboring cell information in the second office data possessed by itself, the measuring, determining, registering, obtaining and reflecting being sequentially performed by each of second base stations. | 08-28-2008 |
20080207210 | Apparatus and Method for Frequency Planning for a Cellular Communication System - The invention relates to frequency planning in a cellular communication system, such as a GSM cellular communication system. An apparatus for frequency planning comprises an interference matrix processor ( | 08-28-2008 |
20080207211 | Method and apparatus for indicating preferred layer information in multimedia broadcast/multicast service (MBMS) - A method is disclosed for transferring preferred frequency information in a mobile communication system which establishes a preferred frequency layer and a non-preferred frequency layer for a Multimedia Broadcast/Multicast Service (MBMS) service. The method involves the steps of determining at least one preferred frequency of the MBMS service when a session of the MBMS service starts, generating the preferred frequency information representing said at least one preferred frequency, and transmitting the preferred frequency information to at least one serving radio network controller for managing communication of user equipments intended to receive the MBMS service. | 08-28-2008 |
20080268857 | CHANNEL SOUNDING TECHNIQUES FOR A WIRELESS COMMUNICATION SYSTEM - A technique of operating a wireless communication system includes determining respective geometries of multiple subscriber stations, which include a first subscriber station and a second subscriber station, with respect to a serving base station. Respective channel sounding bandwidths for sounding the channel between the multiple subscriber stations and the serving base station are then scheduled, based on the respective geometries. The respective channel sounding bandwidths include a first channel sounding bandwidth (associated with the first subscriber station) and a second channel sounding bandwidth (associated with the second subscriber station). The first channel sounding bandwidth is greater than or equal to the second channel sounding bandwidth and the first subscriber station has a lower geometry than the second subscriber station. | 10-30-2008 |
20080274745 | INTERFERENCE MITIGATION TECHNIQUE - A backhaul network for a mobile wireless network including a plurality of nodes forming links, the links utilizing a 1:n frequency re-use scheme in backhaul communication, where n equals 2 to about 16, wherein each link communicates over a different portion of an entire bandwidth of the network. | 11-06-2008 |
20080311919 | USE OF THE PHYSICAL UPLINK CONTROL CHANNEL IN A 3RD GENERATION PARTNERSHIP PROJECT COMMUNICATION SYSTEM | 12-18-2008 |
20090186623 | Base Station Device And Cell Forming Method - A base station device includes a plurality of directional antennas, a power control unit and a frequency management unit. The cell is formed with layers of a base cell having a cell border with a cell formed by a neighboring base station device and including a plurality of sector cells and a small-cell having a cell radius smaller than a cell radius of the base cell and including at least four sector cells by the plurality of directional antennas and the power control unit. The frequency management unit manages frequency bands so that different frequency bands are allocated to the sector cells of the base cell, and a frequency band, which is different from the frequency bands allocated to the base cell and different between neighboring sector cells but the same between at least two sector cells, is allocated to each of the sector cells of the small-cell. | 07-23-2009 |
20090247171 | TRANSMISSION METHOD, WIRELESS BASE STATION, AND WIRELESS COMMUNICATION METHOD - A transmission method that can implement efficient communication control. A transmission block sends a signal of a first frequency band allocated to each zone, by a first directive beam which covers the entire zone, in a first time slot of a predetermined period and sends a signal of a second frequency band which contains the first frequency band and has a greater width than the first frequency band, by a second directive beam which covers a part of the zone and has a smaller beam width than the first directive beam, in a second time slot of the predetermined period. | 10-01-2009 |
20090247172 | LOW REUSE PREAMBLE FOR A WIRELESS COMMUNICATION NETWORK - Techniques for sending low reuse preambles in a wireless network are described. In an aspect, a base station may send a low reuse preamble on reserved frequency resources to allow terminals to detect the base station even in the presence of strong interfering base stations. The base station may generate the low reuse preamble to include a pilot portion and a data portion. The base station may determine frequency resources reserved for sending low reuse preambles by base stations. The base station may then send the low reuse preamble on the reserved frequency resources, e.g., at a pseudo-randomly selected time. A terminal may detect for low reuse preambles sent by the base stations on the reserved frequency resources. The terminal may recover information for a base station from a detected low reuse preamble. | 10-01-2009 |
20090275339 | Frequency mapping for a wireless communication system - Example embodiments are directed to frequency mapping for a wireless communication system. An example embodiment provides a method frequency reuse method. The frequency reuse method includes assigning frequencies for use and reuse to sectors of a cell of a wireless communication system; and communicating with a mobile station using the assigned frequency. Each of the sectors includes sub-sectors, and each of the sub-sectors have an assigned frequency for communicating with a mobile station within the sub-sector. The frequency assignments for each sector of the cell are different. | 11-05-2009 |
20100062780 | Frequency reuse techniques in mote-appropriate networks - Mote appropriate networks employing multiple frequencies, such as those utilized in frequency reuse techniques. | 03-11-2010 |
20100173636 | Method for improving frequency reuse utilizing synchronized downlink resources from adjacent cells - The present invention provides a method for improving frequency reuse utilizing synchronized downlink resources from adjacent cells. The communication system determines that a mobile unit is receiving signals from a first cell and one or more adjacent cells. Upon receiving the data from the EPC to be sent to the mobile unit, the data is also sent to the adjacent cells from the serving cell via the X2-interface by embedding SYNC information into the GTP-U for carrying the PDUs if the adjacent cells are hosted by different eNodeBs. The first cell and adjacent cells allocate identical downlink resource blocks. The first cell and adjacent cells concurrently transmit the data to be received by user equipment within the communication system. | 07-08-2010 |
20100173637 | CARRIER REUSE IN A MULTICARRIER WIRELESS COMMUNICATION ENVIRONMENT - Systems and methodologies are described that facilitate employing fractional frequency reuse within carriers in a multicarrier heterogeneous wireless communication environment. Each carrier can be divided into a plurality of frequency reuse sets. Moreover, each of the frequency reuse sets from each carrier can be categorized as being for one of unrestricted reuse or restricted reuse. Further, a downlink transmission can be scheduled upon resources of at least a first subset of frequency reuse sets from a first carrier bandwidth and a second subset of frequency reuse sets from a second carrier bandwidth. For example, the resources can be scheduled based upon a power class of a base station, categorizations of the frequency reuse set (e.g., unrestricted reuse versus restricted reuse, . . . ), and/or received feedback related to downlink channel conditions. | 07-08-2010 |
20100222061 | METHOD AND APPARATUS FOR MITIGATING INTERFERENCE IN A WIRELESS COMMUNICATION SYSTEM - Techniques to mitigate inter-cell interference using joint time and frequency division are described. A frequency band is divided into multiple non-overlapping frequency subbands. The transmission timeline is divided into T | 09-02-2010 |
20100311428 | RANDOM ACCESS PREAMBLE CELLULAR PHONE SYSTEMS WITH MULTIPLE ZADOFF-CHU SEQUENCES - A cellular phone system where a random access channel burst has a preamble comprising two Zadoff-Chu sequences to mitigate the effects of Doppler Frequency Offset. Upon reception of a random access channel burst by a base station, division is applied to the two sequences recovered from the preamble of the received burst to provide a quotient sequence. For some embodiments, the base station correlates the quotient sequence with a Zadoff- Chu sequence to identify the user equipment that transmitted the random access channel burst. Other embodiments are described and claimed. | 12-09-2010 |
20100317354 | FREQUENCY PLANNING FOR A CELLULAR COMMUNICATION SYSTEM - An apparatus for frequency planning for a cellular communication system comprises a receiver ( | 12-16-2010 |
20110034174 | IN A RADIO NETWORK ENVIRONMENT, REDUCING INTERFERENCE AMONG OVERLAPPING CELLS - Disclosed is a method for a femtocell to reduce interference with an overlapping macrocell. The femtocell determines soft-frequency-reuse (“SFR”) information of the macrocell. From that information, the femtocell determines which frequency sub-channels are assigned by the macrocell for its cell-center users and which frequency sub-channels are assigned for cell-edge users. (Cell-edge users are given a higher transmission power profile in order to overcome potential interference with neighboring macrocells.) Then, the femtocell selects from the cell-center user frequency sub-channels for transmission to the femtocell's users. By transmitting on the cell-center user frequency sub-channels, the femtocell reduces interference with the overlapping macrocell. The femtocell continues to update its knowledge of the macrocell's SFR information and re-assigns frequency sub-channels as the SFR changes. If the macrocell detects that one of its cell-center users is “close enough” to the femtocell, then the macrocell re-assigns the cell-center user as a cell-edge user to overcome interference. | 02-10-2011 |
20110053601 | Cell Configuration for Self-Organized Networks with Flexible Spectrum Usage - 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. | 03-03-2011 |
20110151881 | TECHNIQUES FOR FRACTIONAL FREQUENCY REUSE IN WIRELESS NETWORKS - Methods and apparatuses for Fractional frequency reuse (FFR). A reuse factor of one (f=1) may be used to serve mobile stations located in inner cell regions that do not experience significant inter-cell interference (ICI) and a reuse factor of less than one (f<1) may be used for mobile stations located near the cell edge that tend to experience higher levels of ICI. Dynamic allocation of frequency partitions and adjustment of power levels for each base station sector are provided in order to avoid collisions between neighboring base station sectors and achieve improved capacity and performance. Load balancing may also be provided. | 06-23-2011 |
20110201340 | Method and Apparatus for Cell Selection in Flexible Spectrum Use Radio System - In accordance with an example embodiment of the present invention, an apparatus comprises a transceiver configured to receive beacons from a plurality of access points; a processor configured to estimate an expected bit-rate for the plurality of access points based at least in part on a frequency spectrum use resourcing, select an access point from the plurality of access points based at least in part on a target expected bit-rate and cause the transceiver to connect to the selected access point. | 08-18-2011 |
20120046038 | Interference management for distributed antenna systems - A central base station for interference management in a distributed antenna system comprises a processor; a memory; and a frequency partition module configured to divide the remote radio heads into clusters and allocate a frequency band to each cluster. Multiple clusters use the same frequency band and groups of clusters are formed. A joint scheduler is configured, for each group, to activate at most two clusters at any given time and deactivate remaining clusters in the group, one of the at most two activated clusters being a serving cluster of the group, and to associate one or more users with the serving cluster in the group. An interference alignment module is configured to apply downlink interference alignment between the at most two activated clusters in each group to align transmit directions of all interferences between the at most two activated clusters. | 02-23-2012 |
20120190373 | METHOD AND APPARATUS FOR DETERMINING TIMING INFORMATION FOR CELLS - Techniques for determining timing information for cells are disclosed. A user equipment (UE) may communicate with a serving cell and may need to make measurements of other cells, e.g., to support positioning of the UE. Each cell may transmit reference signals based on its timing. Different cells may operate asynchronously or with unknown timing. The UE may send a request for measurement gaps to the serving cell and may include timing information in the request. The timing information may (directly or indirectly) convey relative timing between the serving cell and a reference cell. The serving cell may determine measurement gaps at the proper time for other cells based on the timing information from the UE and may avoid scheduling the UE for data transmission during the measurement gaps. The UE may make measurements of other cells during the measurement gaps, without losing any data from the serving cell. | 07-26-2012 |
20120220304 | Method and Apparatus To Estimate Relative Base Station and Subscriber Terminal Locations and Using It To Increase Frequency Reuse - Method for estimating position information of base stations as well as terminals for three dimensional centralized real-time spectrum management to achieve high spectral efficiency. In one aspect of the invention, the method comprises i) understanding the position information of plurality of base stations, wherein the plurality of terminals and the base stations form a wireless network, ii) determining, at the central controller, position of a terminal via plurality of communication wirelessly between the base stations and a terminal and between the base station and the central controller, iii) applying network wide real time knowledge at the central controller to electronically steerable antennas to use a resource in a different direction then where it is used by other base stations to achieve frequency reuse of one. | 08-30-2012 |
20120225661 | Measurement-Assisted Dynamic Frequency-Reuse in Cellular Telecommunications Networks - A radio network resource controller directs a first network node associated with a first cell region, or a wireless terminal in communication through the first cell region, to measure and report radio resource-related data selected from the group consisting of: resource activity per channel; the number of transmitted power samples that exceed a threshold over a measurement period; and, channel quality samples that exceed a quality threshold. The controller then receives at least one measurement report of the radio resource-related data and, as a function of the radio resource-related data in the first cell region, dynamically reallocates the distribution of resources, such as radio-frequency channels, between the first cell region and at least a second cell region. The invention has a particular advantage in TDD mode of operation where efficient and dynamic interference mitigation is needed to combat the inherent mobile-to-mobile and base station-to-base station interference. | 09-06-2012 |
20120225662 | APPARATUS AND METHOD FOR ALLOCATING FREQUENCY RESOURCE TO MICRO UE IN A MOBILE COMMUNICATION SYSTEM - A method and apparatus for allocating a frequency resource to each micro User Equipment (UE) in a hierarchical cellular mobile communication system are disclosed. The method includes acquiring information about traffic of each macro UE or a macro BS in a frequency resource allocated to the macro UE or the macro BS, first Signal-to-Noise Ratio (SNR) information about an SNR of a signal from the macro UE or the macro BS, measured at each micro UE and second SNR information about an SNR of a signal from the micro UE, measured at each micro BS, calculating throughput of the micro UE using the traffic information, the first SNR information and the second SNR information, determining a frequency resource to be allocated to the micro UE using information about the calculated throughput and allocating the determined frequency resource to the micro UE. | 09-06-2012 |
20120252468 | ADAPTIVE DISTRIBUTED FREQUENCY PLANNING - Systems and methodologies are described that facilitate employing distributed frequency planning and reuse factor optimization based upon forward link and/or reverse link interference management techniques. An optimal reuse factor for a base station can be determined based upon a metric that evaluates levels of service associated with neighboring base stations. Moreover, a subset of available resource sets can be selected for use by the base station; thus, a base station specific collection of resource sets can be formed through such selection. Further, mappings of each resource set to a set of physical resources can be disseminated in a network or portion thereof. According to another example, frequency hopping can be constrained to use of resources within a resource set (rather than across more than one resource set) as provided in a base station specific hopping pattern. | 10-04-2012 |
20130029674 | METHODS AND SYSTEMS FOR FREQUENCY REUSE IN MULTI-CELL DEPLOYMENT MODEL OF A WIRELESS BACKHAUL NETWORK - 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. | 01-31-2013 |
20130090120 | INTER-CELL INTERFERENCE COORDINATION IN WIRELESS NETWORKS - 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. | 04-11-2013 |
20130130702 | METHOD AND APPARATUS FOR DETECTING A SEGMENT IDENTIFIER IN A WIRELESS COMMUNICATION SYSTEM - 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. | 05-23-2013 |
20130130703 | SIGNAL TRANSMISSION METHOD, APPARATUS, AND BASE STATION - 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. | 05-23-2013 |
20130171999 | Dynamic Channel Reuse in Multi-Access Communication Systems - 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. | 07-04-2013 |
20130260772 | MULTI-TIER CLUSTERING APPARATUS IN WIRELESS COMMUNICATION SYSTEM AND METHOD THEREOF - An apparatus and a method for configuring and managing/controlling a cluster, which is a set of Base Stations (BSs) for transmitting signals cooperatively, are provided. The method includes broadcasting cluster set information indicating information about a plurality of clusters including a serving BS to a User Equipment (UE), receiving a report of information about Received Signal Strength Indicators (RSSIs) of control signals transmitted from BSs included in the plurality of clusters from the UE, and assigning any one of the plurality of clusters to a cluster for servicing the UE based on the information about the RSSIs of the control signals. | 10-03-2013 |
20130324136 | COMMUNICATION SYSTEM, BASE STATION APPARATUSES, AND TERMINAL DEVICES - In a communication system, a first cell that covers a wide region includes, in a cover region thereof, a second cell that covers a smaller region than the first cell, one first terminal device or more positioned in the first cell receive a signal on which precoding has been performed and that is transmitted by a first base station apparatus that controls the first cell, and one second terminal device or more positioned in the second cell receive a signal on which precoding has been performed and that is transmitted using the same frequency as in the first cell by a second base station apparatus that controls the second cell. The communication system determines the number of streams to be transmitted by the second base station apparatus on the basis of information regarding the number of streams to be transmitted by the first base station apparatus. As a result, in a system in which interference between cells exists, interference may be reduced with a simple structure using transmit and receive filters. | 12-05-2013 |
20140031049 | Cloud-based Radio Access Network for Small Cells - A wireless communications system is disclosed. The system comprises a baseband processing unit (BBU) pool including one or more baseband processing units (BBUs), and a plurality of remote radio heads (RRHs) connected to the BBU pool through a front-haul network, wherein the wireless communications system has a plurality of sectors, each of which includes one or more small cells, each of which is deployed by one of the plurality of RRHs, wherein a BBUs is mapped to two or more RRHs in a sector in a one-to-many configuration, and a BBU is mapped to a single RRH in a sector in a one-to-one configuration, and wherein a combination of the one-to-one configuration and the one-to-many configuration is applied to each sector. Other systems, apparatuses, and methods also are disclosed. | 01-30-2014 |
20140051452 | LOAD-AWARE DYNAMIC CELL SELECTION WITH INTERFERENCE COORDINATION BY FRACTIONAL REUSE FOR CELLULAR MULTI-USER NETWORKS - A method for determining for a plurality of users of a wireless cellular network transmitters of the wireless cellular network used for determining candidate rate configurations for serving the users is described, wherein the transmitters of the wireless cellular network operate in accordance with the fractional reuse scheme allocating distinct resource blocks to respective transmitter partitions, each partition including transmitters having assigned the same resource block, and wherein for each user, an active transmitter set is determined by selecting from each transmitter partition a transmitter as an active transmitter in accordance with a predefined criterion. | 02-20-2014 |
20140120924 | METHOD AND APPARATUS FOR SELECTING CARRIER IN COMMUNICATION SYSTEM - A method and apparatus for selecting a carrier in a wireless communication system is provided. a pico eNodeB (eNB) transmits a carrier information request message including a request of information on carriers used by a macro eNB, receives a carrier information response message as a response of the carrier information request message, the carrier information response message including the information on carriers used by the macro eNB, and selects a primary cell (PCell) of the pico eNB based on the received information on carriers used by the macro eNB. | 05-01-2014 |
20140141787 | Management of Asymmetric Communication Frequency Channels in a Radio Communication System - 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. | 05-22-2014 |
20140194129 | Staggered Cells For Wireless Coverage - 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. | 07-10-2014 |
20140235255 | METHODS AND ARRANGEMENTS FOR A COORDINATION OF FREQUENCY BAND SELECTIONS FOR INTERFERING UPLINK TRANSMISSIONS IN A CELLULAR NETWORK - 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. | 08-21-2014 |
20140256331 | WIRELESS COMMUNICATION SYSTEM AND WIRELESS COMMUNICATION METHOD AND BASE STATION DEVICE - 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. | 09-11-2014 |
20140256332 | INTERFERENCE COORDINATION BETWEEN MACROCELL AND SMALL CELL - 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. | 09-11-2014 |
20140302859 | LOAD-BASED DYNAMIC FRACTIONAL FREQUENCY REUSE IN AN LTE NETWORK - 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. | 10-09-2014 |
20140302860 | Wireless Communications System and Method - 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. The technique is applicable to both the uplink (user to base station) and the down link (base station to user) and also to peer to peer (user to user) communication. | 10-09-2014 |
20140323139 | METHOD AND APPARATUS FOR REDUNDANCY OF WIRELESS COMMUNICATION NETWORK - 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. | 10-30-2014 |
20150111583 | COMMUNICATING DETECTION OF CONTROLLED RADIO FREQUENCIES - 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. | 04-23-2015 |
20150111584 | OVERLAPPING CELLS FOR WIRELESS COVERAGE - 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. | 04-23-2015 |
20150133129 | FRACTIONAL FREQUENCY REUSE SCHEMES ASSIGNED TO CLUSTERS OF RADIO NODES IN AN LTE RADIO ACCESS NETWORK - 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. | 05-14-2015 |
20150382199 | RADIO RESOURCE MANAGEMENT APPARATUS, METHOD AND SYSTEM - A spectrum management system includes circuitry that determines available spectrum for a secondary communication system. The available spectrum is determined based on a disturbance tolerance of a primary communication system that is managed by the spectrum management system and a disturbance tolerance of another primary communication system that is managed by another spectrum management system. The circuitry then causes the setting of a spectrum for the secondary communication system based on the available spectrum and whether or not a spectrum request is received from the secondary communication system. | 12-31-2015 |
20160119793 | SHARED USE OF LICENSED FREQUENCY SPECTRUM IN A MOBILE COMMUNICATIONS NETWORK - There is provided shared use of licensed frequency spectrum in a mobile communications network, while maintaining confidentiality between the license holder and the licensee. Geographical information on availability of licensed frequency spectrum for shared use is obtained. A site map of a mobile communications network is obtained. The site map includes locations of sites, where wireless access to the mobile communications network is provided. A configuration of frequencies for the sites on the basis of the available licensed frequencies for shared use at each location of the sites is determined. | 04-28-2016 |
20160127911 | DYNAMIC SCHEDULING OF NON-INTERFERING CLUSTERS IN A DISTRIBUTED DIVERSITY COMMUNICATIONS SYSTEM - In certain embodiments, a cellular wireless communications network has clusters, each cluster having a plurality of cells and a cluster-level controller that dynamically divides the cluster into non-interfering sub-clusters for each resource allocation unit (e.g., physical resource block) . Each sub-cluster has one or more cells that transmit to a single user in the cluster for the resource allocation unit, and at least one sub-cluster has at least two cells that transmit to a single user for the resource allocation unit using a distributed diversity mode of communication in which the at least two cells transmit the same data to the single user. The controller divides the cluster into sub-clusters based on determinations of whether users in the cluster are susceptible to interference from non-serving cells in the cluster. By assigning potentially interfering, non-serving cells to the sub-cluster for a user, those non-serving cells are eliminated as sources of interference. | 05-05-2016 |
20160127912 | CONFIGURATION OF RESOURCE USAGE IN COMMUNICATION SYSTEMS - Apparatus and method for communication are provided. The solution may include serving one or more cells of a radio access system, the geographical area of the radio access system comprising one or more reservation zones, where the use of the resources of the zones may be activated or deactivated by a network element of the system; storing for each served cell category classification information of each served cell, the category classification describing how the cell interferes with each of the one or more authorized/licenced shared access reservation zones; storing one or more predetermined actions for each category classification and reservation zone; receiving a command from a network element related to the activation or deactivation of one or more authorized/licenced shared access reservation zones and executing one or more predetermined actions on the basis of the command. | 05-05-2016 |
20160142919 | Method and Network Node for Providing Radio Resources for Radio Communication in a Cellular Network - A method and network node ( | 05-19-2016 |
20160165555 | METHOD AND APPARATUS FOR MANAGING RADIO RESOURCE IN WIRELESS COMMUNICATION SYSTEM - A method and an apparatus for performing transmission power selection of a wireless access device and channel allocation in a combination manner, for resource management optimized for a wireless network environment supporting multimedia traffic are provided. In a method for managing a radio resource of at least one Access Point (AP) in a wireless communication network, a transmission power select operation for the AP is performed on each of a plurality of channel settings, and a network performance value is predicted. Optimized channel setting is selected among the plurality of channel settings depending on the predicted network performance value. The optimized channel setting and optimized transmission power corresponding to the optimized channel setting are allocated to the AP. | 06-09-2016 |