Class / Patent application number | Description | Number of patent applications / Date published |
455513000 | Ranking (e.g., based on signal strength, etc.) | 85 |
20080227475 | Wireless Communication System and Wireless Communication Method - The present invention relates to a radio communications system and a radio communications method, and an object of the invention is to readily reduce the occurrence of collisions of contention channels. In order to achieve the object, radio resources are assigned in different orders between one radio communication and another one radio communication. | 09-18-2008 |
20080280635 | METHOD FOR GROUPING WIRELESS DEVICES AND APPARATUS THEREOF - A method for grouping wireless devices and an apparatus thereof are provided. First, the feature values of a plurality of access points (APs) detected by a wireless device are received, wherein these APs are designated as a first set, and the feature values of the APs constitute a feature vector. A first grouping process is performed to the wireless device according to the first set, which allocates the wireless device to an appointed clustering factory. A second grouping process is performed to the wireless device according to the feature vector, which divides all of the wireless devices within the appointed clustering factory into a member group or a noise group. Eventually, the grouping result is transmitted to the wireless device. | 11-13-2008 |
20090005096 | Distributed antenna communications system - A distributed antenna system comprises a base transceiver station, a plurality of distributed antenna units and a signal routing apparatus. The base transceiver station has a plurality of output ports that generate a plurality of downlink signals having overlapping transmit frequencies and containing different communication content. The different communication content is directed toward each of a plurality of mobile units. The base transceiver station also has at least one uplink receive port that receives an uplink signal. The uplink signal includes communication content received from at least one of the mobile units. The plurality of distributed antenna units have coverage areas that are non-overlapping or only partially overlapping. The signal routing apparatus routes the downlink signals to the plurality of distributed antennas such that each of the plurality of downlink signals are transmitted by one or more of the distributed antennas and each distributed antenna only transmits one of the downlink signals. | 01-01-2009 |
20090023465 | ESTIMATION OF RECEIVED SIGNAL STRENGTH - A method for estimating a size of reverse link resources provided by a base-station transceiver system (BTS), including performing respective first, second, and third measurements of first, second, and third signal strengths received at the BTS. The method also includes comparing the first measurement with the second measurement so as to determine an initial minimum signal strength, and adding at a predetermined time an aging value to the initial minimum signal strength so as to form an updated minimum signal strength. The method further includes forming a comparison between the updated minimum signal strength and the third measurement, determining from the comparison a minimum of the updated minimum signal strength and the third measurement to be a minimum received signal strength, and determining the size of the reverse link resources provided by the BTS in response to the minimum received signal strength. | 01-22-2009 |
20090047984 | Method for selecting a serving carrier in a multi-carrier system - One of a plurality of carrier frequencies may be selected as a serving carrier for an uplink transmission based on at least one of a mobile velocity and loading conditions of the plurality of carrier frequencies. Selection of the serving carrier favors a carrier frequency having a smaller loading than at least one other carrier frequency based on the loading conditions. Also, selection of the serving carrier favors a lower frequency carrier for a higher mobile velocity and favors a higher frequency carrier for a lower mobile velocity based on the mobile velocity. | 02-19-2009 |
20090104926 | METHOD OF SPACE DIVISION MULTIPLE ACCESS COMMUNICATION USING USER COOPERATION AND SYSTEM OF ENABLING THE METHOD - A communication device using user cooperation is provided with a channel information reception unit to receive channel information from a plurality of member terminals within the same group, the channel information being associated with a radio channel formed between the plurality of member terminals and a base station; a member terminal selection unit to select at least one active member terminal from among the plurality of member terminals based on the channel information; and a selection information transmission unit to transmit selection information to the base station, the selection information being associated with a radio channel formed between the at least one active member terminal and the base station. | 04-23-2009 |
20090111497 | SYSTEM AND METHOD FOR PROVIDING CONGESTION CONTROL IN A COMMUNICATION SYSTEM UTILZIING SCHEDULED ACCESS COMMUNICATION CHANNELS - A first communication channel is used by a communication unit for communicating with a base site. The first communication channel has an inbound link and an outbound link. The communication unit determines that congestion is present on the communication channel. The communication unit determines its transmission requirements and whether the first communication channel is capable of supporting its transmission requirements. If the first communication channel is not capable of supporting the transmission requirements of the communication unit, the communication unit locates a second communication channel capable of supporting its transmission requirements, and switches to the second communication channel to communicate with the base site. | 04-30-2009 |
20090170545 | COGNITIVE RADIO COMMUNICATION APPARATUS AND METHOD WHICH ADAPTABLY CONTROLS SENSING REFERENCE LEVEL - A cognitive radio communication apparatus and method which adaptably controls a sensing reference level based on a transmission power of a transmitter is provided. A cognitive radio communication apparatus includes a sensing reference level control unit to adaptably control a sensing reference level based on a transmission power of a secondary transmitter included in a secondary network, and a fast sensing unit to determine whether a signal received for a predetermined time period exists based on the controlled sensing reference level. | 07-02-2009 |
20090275353 | Connection destination base station determination device - A connection destination base station determination device is disclosed that includes: a storage part configured to store information indicating a radio base station that has transmitted a signal received with intensity at or above a certain level in a mobile terminal, and information indicating the amount of available resources in the radio base station; a selection part configured to select, of radio base stations having the amount of available resources greater than or equal to the amount of resources requested by the mobile terminal, a radio base station different from a radio base station having the largest amount of available resources as a connection destination radio base station; and a notification part configured to notify the selected radio base station that the mobile terminal is to be connected thereto. | 11-05-2009 |
20090325616 | MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, AND MOBILE STATION APPARATUS - A mobile communication system in which a mobile station apparatus transmits, to abase station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal, wherein the base station apparatus: transmits, to the mobile station apparatus, a radio resource control signal including information for specifying a physical format in transmitting reception quality information together with uplink data; and transmits, to the mobile station apparatus, the uplink data transmission permission signal including a transmission instruction of reception quality information, and wherein the mobile station apparatus transmits, to the base station apparatus, reception quality information together with uplink data using the physical uplink shared channel according to information for specifying the physical format in case that a transmission instruction of the reception quality information is included in the uplink data transmission permission signal. | 12-31-2009 |
20090325617 | MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS AND MOBILE STATION APPARATUS - A mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal, wherein the base station apparatus: transmits, to the mobile station apparatus, a radio resource control signal including a transmission instruction of reception quality information; and transmits, to the mobile station apparatus, the uplink data transmission permission signal, and wherein the mobile station apparatus: periodically transmits, to the base station apparatus, first reception quality information using a physical uplink control channel according to a transmission instruction of the reception quality information included in the radio resource control signal; transmits, to the base station apparatus, second reception quality information using the physical uplink shared channel in case that a transmission instruction of reception quality information is included in the uplink data transmission permission signal; and transmits, to the base station apparatus, the first reception quality information using the physical uplink shared channel in case that the physical uplink shared channel is assigned by the uplink data transmission permission signal which does not include a transmission instruction of the reception quality information in transmitting the first reception quality information. | 12-31-2009 |
20090325618 | MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, AND MOBILE STATION APPARATUS - A mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal, wherein the base station apparatus: transmits, to the mobile station apparatus, a radio resource control signal including a transmission instruction of reception quality information; and transmits, to the mobile station apparatus, the uplink data transmission permission signal including a transmission instruction of reception quality information, and wherein the mobile station apparatus: periodically transmits, to the base station apparatus, first reception quality information according to a transmission instruction of the reception quality information included in the radio resource control signal; transmits, to the base station apparatus, second reception quality information using the physical uplink shared channel in case that a transmission instruction of the reception quality information is included in the uplink data transmission permission signal; and transmits, to the base station apparatus, the second reception quality information using the physical uplink shared channel in case that transmission of the first reception quality information and transmission of the second reception quality information would occur at the same time. | 12-31-2009 |
20090325619 | MOBILE COMMUNICATION SYSTEM, BASE STATION APPARATUS, AND MOBILE STATION APPARATUS - A mobile communication system in which a mobile station apparatus transmits, to a base station apparatus, uplink data using a physical uplink shared channel assigned by an uplink data transmission permission signal, wherein the base station apparatus: transmits, to the mobile station apparatus, a radio resource control signal including a transmission instruction of reception quality information; and transmits, to the mobile station apparatus, the uplink data transmission permission signal including a transmission instruction of reception quality information, and wherein the mobile station apparatus: periodically transmits, to the base station apparatus, first reception quality information according to a transmission instruction of the reception quality information included in the radio resource control signal; and transmits, to the base station apparatus, second reception quality information using the physical uplink shared channel in case that a transmission instruction of the reception quality information is included in the uplink data transmission permission signal. | 12-31-2009 |
20100069108 | APPARATUS AND METHOD FOR TRANSMITTING DATA OVER A WIRELESS NETWORK - The subject matter discloses a wireless transmitter comprising a network interface for receiving and transmitting the data; storage for storing the data received at the transmitter by the network interface; a processor for handling the data stored in the storage and determining the work channel; and an indicating module for indicating to the processor that a level of quality of service provided in transmitting the data to the receiver such that the transmitter is capable of switching the work channel as a function of the level of quality of service. The data may be medical related data, more specifically ECG data. | 03-18-2010 |
20100075706 | REFERENCE SIGNAL DESIGN FOR LTE A - Systems and methodologies are described that facilitate creating antenna ports to correspond to two or more groups of user equipment (UEs). The subject innovation can organize two or more groups of user equipment and signal to each of the two or more groups a respective antenna port. The subject innovation can further communicate mapping information, a reference signal, or delay related to a linear combination in order to identify antenna ports. Based on such communicated information, the reference signal can be decoded in order to identify each antenna port. | 03-25-2010 |
20100159974 | Wireless Communication Apparatus and Method - A wireless communication apparatus | 06-24-2010 |
20100203916 | QUALITY OF SERVICE BASED MULTI-ANTENNA MODE SWITCHING - A method of operating a communication system is disclosed. A first wireless device associated with a first profile is communicated with using a first multi-antenna mode. A second wireless device associated with a second profile is communicated with using the first multi-antenna mode. A network resource utilization is determined. It is determined that the network resource utilization satisfies a criteria. Based on the network resource utilization satisfying the criteria, at least one control message is sent that instructs the second wireless device to use a second multi-antenna mode. | 08-12-2010 |
20100261495 | Distributed hole recovery process using connectivity information - A distributed coverage hole recovery process using connectivity information is proposed for wireless sensor networks and other wireless networks. A link is said to exist between two nodes which are sufficiently close. After a un-triangulated hole is detected enclosing by links between N (N>3) active boundary nodes, the distributed hole recovery process activates one or two redundant nodes to recover the hole at each iteration. This process is performed iteratively by each of the active boundary nodes adjacent to the hole independently without any central controller. It requires 2 hops connectivity or neighbor information from each boundary node adjacent to the hole. After each hole recovery iteration, the hole is reduced in size or split into two smaller holes. Then the hole recovery process repeats until the hole is recovered or detected as unrecoverable. | 10-14-2010 |
20100267409 | MOBILE TERMINAL AND BROADCAST CONTROLLING METHOD THEREOF - A mobile terminal is provided having a memory, a display, a wireless communication unit having a first module to receive a first broadcast signal and a second module to receive a second broadcast signal, and a controller to control the wireless communication unit, wherein when a signal strength of the first broadcast signal received by the first module is less than a first signal strength, the controller to control the second module to receive the second broadcast signal and the second broadcast signal is buffered in the memory while the display displays content corresponding to the first broadcast signal received by the first module. | 10-21-2010 |
20100285826 | DEVICE FOR ADAPTING MODULATION AND CODING SCHEMES TO BE APPLIED TO DATA INTENDED TO BE BROADCAST TO RADIO COMMUNICATION TERMINALS - A device is dedicated to adapting modulation and coding schemes to be applied to data intended to be broadcast by means of a dedicated carrier over a forward channel of a radio communication network to radio terminals (UE) connected to at least that radio communication network. This device (D) comprises processing means (PM) tasked with adapting at least one modulation and coding scheme to be applied to data intended to be broadcast by means of the dedicated carrier, based on actual radio broadcast conditions, over links established between the radio network and radio terminals (UE) which are recipients of the data to be broadcast. | 11-11-2010 |
20100291959 | RADIO SCHEDULING APPARATUS, RADIO COMMUNICATION SYSTEM, AND RADIO SCHEDULING METHOD - A radio scheduling apparatus in a radio communication system in which a modulation scheme is selected in accordance with radio quality includes radio quality acquisition means and scheduling means. The radio quality acquisition means acquires radio quality information indicative of radio quality for each mobile station. The scheduling means determines the degree of urgency for assigning a radio channel according to the radio quality, based on the radio quality information acquired by the radio quality acquisition means, and preferentially assigns a radio channel to a mobile station having a high degree of urgency. | 11-18-2010 |
20100311456 | BASE STATION APPARATUS AND DIRECTIVITY CONTROL METHOD IN MOBILE COMMUNICATION SYSTEM - A disclosed base station apparatus for a mobile communication system includes a collection unit collecting measured data from one or more user equipment terminals with respect to each direction of arrival, the measured data including at least quality information of a downlink signal, a conversion unit converting the measured data into an evaluation value in accordance with a predetermined evaluation function, a deriving unit deriving a weight update amount determining directivity based on an angular distribution of the plural evaluation values, and a transmission unit transmitting a downlink signal weighted based on the weight update amount. | 12-09-2010 |
20100323739 | LINK ADAPTATION IN A WIRELESS TELECOMMUNICATIONS SYSTEM - The invention relates to control of link resources in a wireless telecommunications system, in which instant channel feedback information is transmitted from a mobile terminal in response to receipt of a selection message from a basestation, and the instant channel feedback information is used for real-time resource allocation and adaptation at the basestation. The feedback information includes channel quality information derived from pilot signals and from pre-allocated transmission weights. | 12-23-2010 |
20100323740 | METHOD FOR ALLOCATING RESOURCES - The present invention relates to a method for allocating resources to a plurality of secondary stations for enabling communication between a primary station and the plurality of secondary stations, comprising the steps of a) grouping the resources into at least a first set of resources and a second set of resources; b) allocating a first resource of the first set of resources to a first secondary station, said first resource having a first index in the first set of resources; c) allocating a second resource of the second set of resources to the first secondary station, said second resource having a second index in the second set of resources being equal to the first index plus an offset based at least partly on other information known to the primary and first secondary station. | 12-23-2010 |
20100331033 | WIRELESS COMMUNICATION NETWORK SYSTEM AND METHOD - A wireless communication network system including: a command station for allocating a frequency band, broadcasting a backup station and periodic measurement periods in which a terminal should measure a reception quality, and stopping the allocation of the frequency band to the terminal during the measurement period; one or a plurality of backup stations for synchronizing with the command station and transmitting a measurement signal by using the same frequency channel as that of the command station; and one or a plurality of terminals for measuring a reception quality for each backup station by using the measurement signal. | 12-30-2010 |
20110009148 | Channel Rank Updates in Multiple-Input Multiple-Output Communication Systems - Embodiments of the disclosure provide a system and method for providing channel feedback information (CFI) from a user equipment device to a base station. CFI is transmitted from the user equipment device on first and second communication channels. The user equipment device is operable to measure the channel rank of a downlink channel and to select a preferred channel rank that is used to configure the CFI that is transmitted to the base station. The base station is operable to use the preferred channel rank to interpret the CFI transmitted by the user end device. | 01-13-2011 |
20110021233 | WIRELESS COMMUNICATION DEVICE AND COMMUNICATION METHOD OF WIRELESS COMMUNICATION DEVICE - An object of the present invention is to provide means for eliminating a transmission delay when transmitting emergency information for the sake of relief, security, or the like in a wireless device in conformity with the wireless LAN standard in which if radio waves transmitted from peripheral devices are detected, transmission has to be stopped. In a multimode wireless communication scheme having two or more communication schemes, priorities of the communication schemes are set. A high priority or low priority regarding to a message is described in a “message type” data field of a frame of a controlling channel output from the access point side to the terminal side. When the frame of the controlling channel is decrypted on the terminal side, the message type is confirmed, so that the type of a service channel used thereafter is confirmed and the channel is coupled. | 01-27-2011 |
20110086661 | BASE STATION AND COMMUNICATION METHOD - A base station includes: an estimation section estimating transmission condition of each of frequency channels used for communication; a reception section receiving a data signal from each communication terminal through any of the frequency channels; a measurement section measuring received signal power of the received data signal for each frequency channel; a determination section determining, for each frequency channel, whether the received data signal is demodulated errorlessly; and a control section assigning frequency channels estimated as being in good transmission condition by the estimation section, to communication terminals the data signals of which are determined as not being errorlessly demodulated by the determination section, such that a frequency channel in a better transmission condition is assigned preferentially to a communication terminal having larger received signal power detected by the detection section, and transmitting retransmission request signals requesting the communication terminals to retransmit the data signals using the assigned frequency channels. | 04-14-2011 |
20110092243 | CONTROLLING ALLOCATION OF A PORTION OF A SHARED CHANNEL TO USE FOR CONTROL INFORMATION - To control allocation of a portion of a shared channel to use for control information, a base station determines an amount of resource elements of the shared channel to use for the control information in place of traffic data. The base station sends, to a mobile station, an indication relating to an offset parameter, where the indication is provided to allow the mobile station to compute a value for the offset parameter such that the mobile station can determine the amount of the resource elements of the shared channel to allocate for the control information. | 04-21-2011 |
20110105171 | REPORTING CHANNEL QUALITY INFORMATION - The present invention relates to a method of transmitting channel quality data for channels in a wireless communication system, and to a corresponding receiver and transmitter. The method comprises determining a plurality of channel quality indicators for a corresponding plurality of frequency intervals, and transmitting information about channel quality indicators in the form of differentially encoded slope data. | 05-05-2011 |
20110111785 | TIMING OF COMPONENT CARRIERS IN MULTI-CARRIER WIRELESS NETWORKS - Mechanisms for efficient transmission of large amount of download data from a base station ( | 05-12-2011 |
20110117951 | APPARATUS AND METHOD FOR CAMPING ON IN MOBILE COMMUNICATION TERMINAL - An apparatus and a method for obtaining a service in a weak electric field in a mobile communication terminal are provided. In the method, whether one or more frequencies that meet reception signal strength of a certain threshold exist among all frequencies on which camp-on is possible is determined. When it is determined that the one or more frequencies that meet the reception signal strength of the certain threshold do not exist, camp-on is attempted for one or more frequencies that are expected to exist and have been set in advance. | 05-19-2011 |
20110218009 | MOBILE COMMUNICATION METHOD, MOBILE COMMUNICATION SYSTEM AND RADIO BASE STATION - A mobile communication method is disclosed, where the mobile communication method includes the steps of determining, at a mobile station, a first cell with the largest interference amount among a plurality of cells in accordance with reception quality of a reference signal in the plurality of cells, when radio links are established between the mobile station and the plurality of cells, transmitting, from the mobile station to the plurality of cells, identification information of the first cell, and scheduling, at a radio base station which manages each of the plurality of cells, to transmit a data signal addressed to the mobile station via a resource that is unusable by the first cell. | 09-08-2011 |
20110218010 | Method and Device for Link-Characteristic Based Selection of Supporting Access Nodes, - For uplink cooperation of a serving access node ( | 09-08-2011 |
20110223955 | Communication network system having high-ranking network and low-ranking networks, interchange terminal connecting high-ranking network and low-ranking network, microcomputer controlling connection between transmission line of low-ranking network and transmission line of high-ranking network, and communication transmitter-receiver connected with transmission line of low-ranking network and transmission line of high-ranking network - A communication network system has a host network and low-ranking networks connected with the host network through respective interchange terminals. Terminals containing the interchange terminals in the host network perform communication based on FlexRay. FlexRay sets a static segment and a dynamic segment every communication period. Communication zones are fixedly allocated to the respective terminals in each static segment. Communication zones are changeably allocated to the respective terminals in each dynamic segment. Terminals of each low-ranking network perform communication based on LIN or CAN protocol. The interchange terminals connect a transmission line of the host network with transmission lines of the low-ranking networks during the transmission period of each dynamic segment, so that each terminal of each low-ranking network can perform communication based on LIN or CAN protocol with the terminals of the other low-ranking networks through the high-ranking network without any protocol conversion. | 09-15-2011 |
20110223956 | ALLOCATION OF COMMUNICATION CHANNELS - A method of allocating a plurality of communication channels of a network, for a plurality of network stations of the network. The method comprises generating a common transmission message for the plurality of network stations and transmitting the generated transmission message to the plurality of network stations. The message comprises channel allocation information allowing an allocation of channels by the network stations, the information relating to each of the plurality of network stations. A network managing station for communicating with the plurality of network stations, there being a plurality of communication channels available for use by the plurality of network stations. The network managing station comprises a processor, arranged to generate the common transmission message for the plurality of network stations and a transmitter arranged to transmit the generated transmission to said plurality of networks. A network station, capable of communicating over one or more of a plurality of communication channels, the network station comprising: a receiver, arranged to receive the common transmission message and a processor, arranged to determine a channel for use by the network station based on the received channel allocation information. | 09-15-2011 |
20110230224 | Coordinated Multipoint Transmission/Reception User Grouping - User grouping is employed to tradeoff the COMP forward link capacity and required reverse link feedback, which makes the design of COMP practical and flexible. A channel element, such as the large scale fading, is measured for each distributed transmitter and UE pair based on reference signals, and the network receives this information as feedback in the reverse link. The COMP determines a maximum cross interference level α | 09-22-2011 |
20110263286 | METHOD AND APPARATUS FOR CONTENTION-BASED WIRELESS TRANSMISSIONS - Certain aspects of the present disclosure relate to a technique for managing contention-based uplink data transmissions. According to certain aspects, a base station may allocate a common contention-based resource to a plurality of user equipment (UEs). The plurality of UEs may utilize the contention-based resource to transmit uplink data without prior scheduling, which may result in transmission collisions. Certain aspects of the present disclosure provide a mechanism for determining which UE sent an uplink transmissions based on one or more transmission parameter signaled to the UEs. | 10-27-2011 |
20110263287 | MOBILE COMMUNICATION TERMINAL, METHOD, AND RADIO COMMUNICATION SYSTEM - A mobile communications terminal divides a plurality of multipath signals associated with radio signals transmitted from a plurality of base stations using an S-CCPCH into groups by base station, i.e., by transmit source, maximum-ratio-combines a plurality of multipath signals associated with each same base station which is a transmit source into a composite signal, decodes the composite signal, and selects a composite signal having a good decoded result from among decoded composite signals. | 10-27-2011 |
20110275399 | Resource Allocation in Uplink OFDMA - A method and arrangement in a node for allocating transmission resources is presented. The present method and arrangement for scheduling, allocates frequency resources based on the received signal power of user equipment. Thus in particular uplink power can be better utilized. According to the present method and arrangement the resource blocks are distributed so that the SINR of all scheduled user equipments reach a selected SINR target. The selection of SINR targets may be static or dynamic. Further, according to the present method and arrangement, optimization of system and user performance may be combined. | 11-10-2011 |
20110306377 | RADIO COMMUNICATION SYSTEM, RADIO BASE STATION, RADIO TERMINAL, AND COMMUNICATION CONTROL METHOD - Radio base stations ( | 12-15-2011 |
20110312363 | Optimizing Control Channel Performance With Virtual Inter-Cell Coordination - Channel conditions within each of N contiguous cells is determined. Based on at least the determined N channel conditions, there is determined a set of the N cells which are to utilize joint scheduling, and resources for a control channel are jointly assigning to individual cells of the set of cells. In various embodiments, the channel conditions are SINR and load on the control channel; and the set of cells is decided based on potential for mutual interference and/or potential that the control channel will not be filled. The resource may be jointly assigned based on user priority, so that serially for each highest priority user resources are assigned, the assigned resources are then blocked from compiled lists of radio resources, the highest priority user is removed and a next highest priority user is then the highest priority user to continue in the serial iteration. | 12-22-2011 |
20120034943 | WIRELESS LOAD BALANCING ACROSS BANDS - A technique for wireless load balancing involves providing a wireless infrastructure that creates a target band option and helps push clients toward that band. An example of a method according to the technique involves, by way of example but not limitation, responding only to probe requests on a first band when a client is detected on the first band and a second band. For example, using the techniques described herein, a platform that is both 802.11a and 802.11b/g compliant may attempt to connect preferentially to the 802.11b/g band of a wireless network, and be migrated toward the 802.11a band instead. | 02-09-2012 |
20120034944 | WIRELESS COMMUNICATIONS APPARATUS AND METHODS EMPLOYING OPPORTUNISTIC FREQUENCY BAND USE - A base station selectively communicates with terminals using first and second separately allocated frequency bands, e.g., separate cellular/PCS bands, of a government spectrum allocation based on propagation conditions between the base station and the terminals. The base station may transmit in the first frequency band and receive in the second frequency band during a first time slot and transmit in the second frequency band and receive in the first frequency band during a second time slot. The base station may transmit to a terminal in the first frequency band while receiving from the terminal in the second frequency band during the first time slot and may transmit to the first terminal in the second frequency band while receiving from the first terminal in the first frequency band during the second time slot. | 02-09-2012 |
20120046060 | RADIO BASE STATION, RADIO RESOURCE ALLOCATION METHOD AND RADIO COMMUNICATION SYSTEM - A radio base station for performing radio communication by allocating a different radio resource to each of a plurality of radio terminals has a measurement unit for measuring a path loss on the radio resource, a difference information obtaining unit for obtaining difference information Ph between maximum transmit power and current transmit power, a communication type information obtaining unit for obtaining communication type information indicative of a communication type of each of the radio terminals, and a control unit for classifying the radio resources into at least two radio resource groups based on the path loss on each of the radio resources, and for controlling to allocate a radio resource in a corresponding radio resource group to each of the radio terminals based on the difference information and the communication type information obtained. Thereby, the transmit power of a plurality of radio terminals is suitably controlled and a stable radio link is maintained. | 02-23-2012 |
20120046061 | COMMUNICATION MODE CONTROLLING METHOD, MOBILE COMMUNICATION SYSTEM, RADIO NETWORK CNTROLLER, BASE STATION, AND MOBILE COMMUNICATION TERMINAL - A communication mode which should be set to a mobile communication terminal having a function of switching between an autonomous mode and a scheduling mode is determined based on an amount of interference in each of the communication modes in the cell of a base station, and/or communication characteristics of each of the communication modes, and a signal indicating an amount of communication data notified from the mobile communication terminal. The base station then notifies the determined communication mode to the mobile communication terminal. | 02-23-2012 |
20120058794 | Systems and Methods for Enabling Non-Cognitive Radio Devices to Function as Cognitive Radios - Systems and methods according to the exemplary embodiments enable non-cognitive radio devices to operate as if they were cognitive radio devices. A pilot radio device analyzes a local radio environment and broadcasts a spectrum map message which indicates, for example, available radio resources in the local radio environment. A non-cognitive radio device receives the spectrum map message and uses the information in the spectrum map message to select a radio resource for its own transmissions and/or receptions. | 03-08-2012 |
20120064935 | Dynamic Autonomous Resource Allocation and Channel Access in Cellular System Uplink - Methods, apparatuses, and software can be provided for dynamic autonomous resource allocation and channel access in a cellular system uplink. A method can include measuring interference levels on uplink resources of a victim cell and calculating a probability of accessing channels of the uplink resources of the victim cell using the measured interference levels, including defining a suitable transmission power, and a highest value and a lowest value. The method can further include accessing a channel for which the probability of accessing has been calculated, when the probability meets a predetermined condition. | 03-15-2012 |
20120071189 | METHOD AND SYSTEM FOR THE SPECTRUM MANAGER OPERATION IN COGNITIVE RADIO SYSTEMS - A system and method for the operation of a Spectrum Manager (SM) within a cognitive radio system includes two primary states of operation: SM at network initialization and SM at network operation. While in the network Initialization state, the SM's primary responsibility is to find an operating channel. After an operating channel is found, the SM moves from the network initialization state to the network operation state while executing a procedure to establish a network. While in the network operation state, the SM can execute other procedures, a procedure to update list of available channel from the incumbent database of channel and frequency data, a procedure to determine a signal type, a procedure to enter co-existence mode, deciding when to move to a backup channel and issuing calls for the same as well as background procedures such as looking for better backup channels when the SM is otherwise idle. | 03-22-2012 |
20120088535 | METHOD AND DEVICE FOR ALLOCATING SAME RESOURCE FOR A PLURALITY OF ENBS OF COLLABORATIVE MIMO - The present invention provides a method and device for allocating same resource for a plurality of eNBs of collaborative Multiple-input-Multiple-output (MIMO). Wherein a serving eNB firstly determines, in the one or more other eNBs, at least one candidate eNB recommended to cooperate with the serving eNB, according to measurement report reported by mobile stations or according to report information of the recommended candidate eNB reported by mobile station, then obtains resource related information of the at least one candidate eNB, then determines one or more collaborative eNBs from the at least one candidate eNB according to the resource related information, and allocates corresponding communication resources for the serving eNB and the one or more collaborative eNBs. The solution according to the present does not need to reserve special resource for collaborative MIMO, reduces waste of resource, and meets the requirement of resource for implementing collaborative MIMO by different serving eNBs flexibly, and increases the success rate of implementing collaborative MIMO. | 04-12-2012 |
20120115527 | Configuring Unscheduled Periods to Enable Interference Reduction in Heterogeneous Networks - A mobile station in a wireless communication network is disclosed. The mobile station includes a transceiver coupled to a processor configured to rank a plurality of detected cells according to a signal level metric of the plurality of cells, to determine a first pattern of time periods during which a highest ranked cell is configured to transmit only a restricted set of information, and to perform measurements of cells other than the highest ranked cell, of the plurality of cells, only during the first pattern of time periods. | 05-10-2012 |
20120122508 | RADIO BASE STATION AND COMMUNICATION CONTROL METHOD - A control unit ( | 05-17-2012 |
20120122509 | RADIO BASE STATION AND COMMUNICATION CONTROL METHOD - When estimating the quality (SINR) of a PDCCH corresponding to a local sector formed by a radio base station ( | 05-17-2012 |
20120129561 | Method, Device and System for Transmitting Sounding Reference Signals - The embodiments of the present invention disclose a method, device and system for transmitting Sounding Reference Signals (SRSs). The method includes the following steps: a user equipment receives the special SRS sequence information for Coordinated Multi-Point Operation (CoMP) from a base station equipment, and the base station equipment corresponds to a cell in a CoMP SRS cluster ( | 05-24-2012 |
20120135773 | Signal Transmission Method and Related Device Thereof - A signal transmission method and related mobile terminal and base station thereof. The method includes: the base station determines a special transmit time interval (TTI) in a downlink carrier (S | 05-31-2012 |
20120142389 | Method And Apparatus For Coordinated Multi-Point Processing - The disclosure provides a method and apparatus for Coordinated Multiple Point (CoMP) processing. The method comprises: a Base Station (BS) to which a User Terminal (UT) belongs determines bandwidth capability and performance requirement of the UT, and makes itself as a temporary master coordinated BS of the UT to provide services for the UT; the BS receives inter-cell interference information reported from the UT, and selects a master coordinated BS to provide services for the UT according to the inter-cell interference information so that the master coordinated BS can perform CoMP processing. By the disclosure, the signaling interaction between the coordinated BSs and the UT can be significantly reduced during the CoMP transmission/reception, thereby decreasing the system overhead. | 06-07-2012 |
20120165059 | SYSTEM AND METHOD FOR MANAGING SPECTRUM RESOURCES - A central registration system provides channel maps of available spectrum to radio devices based on feedback and spectrum allocation policies. Each available channel in the channel map is given a score that is indicative of the quality of the channel for use by the particular radio device for which the channel map was generated. The quality score for each available channel may be based on the radio device's susceptibility to different types of interference and/or radio device's tolerance of the different types of potential interference. | 06-28-2012 |
20120178484 | COMMUNICATION SYSTEM, COMMUNICATION METHOD, BASE STATION, USER EQUIPMENT, AND THEREIN PROGRAM - The object of the present invention is to provide a technology of deciding CoMP point dynamically by considering the spectrum efficiency after channel-dependent scheduling with different possible combinations of CoMP points. According to the present invention, A wireless communication system, characterized in deciding number of CoMP (coordinated multipoint transmission and reception) point to a user equipment by using information related to scheduling. | 07-12-2012 |
20120202547 | CHANNEL ALLOCATION NOTIFYING METHOD, COMMUNICATION METHOD, AND COMMUNICATION APPARATUS - The number of communication channels necessary for communication with a terminal is calculated by using type and volume of data to be transmitted. When calculated number of communication channels is one, a single communication channel is allocated based on quality information of a communication line to the terminal and, when calculated number of communication channels is more than one, then more than one communication channels are allocated based on the quality information. Allocation information used for notifying of allocated communication channels is generated based on virtual channels, which are defined in advance as channel units having a combination of a plurality of consecutive communication channels, and the allocation information is transmitted to the terminal. | 08-09-2012 |
20120202548 | PSEUDO-OMNI-DIRECTIONAL BEAMFORMING WITH MULTIPLE NARROW-BAND BEAMS - In a technique for communication with a station on a wireless network, the technique includes forming a plurality of narrow-band beams, each having a different angular direction from an antenna of a base station and collectively distributed over a beamspace to form a pseudo-omni-directional beam pattern. That beamspace may span an entire spherical region or a portion thereof, for example, when the narrow-band beams are broadcast over a sector of an entire spherical region. The technique may assign each of the plurality of narrow-band beams to a different frequency band (such as a different channel band or sub-channel) on the wireless network. The technique may simultaneously broadcast the plurality of narrow-band beams in a time-varying manner such that the angular direction of each of the plurality of narrow-band beams varies with time, where that variation may be random or ordered. | 08-09-2012 |
20120202549 | Method and Arrangement for Resource Management - The invention relates to a method in a communication node ( | 08-09-2012 |
20120214530 | BASE STATION AND METHOD FOR IMPROVING COVERAGE IN A WIRELESS COMMUNICATION SYSTEM USING ANTENNA BEAM-JITTER AND CQI CORRECTION - A base station and method are described herein that improves the coverage in a fixed-beam wireless communication system by using antenna beam-jitter and Channel Quality Information (CQI) correction. In one embodiment, the method includes the steps of: (a) modifying a beam by introducing a beam-jitter in a beam-forming pattern; (b) receiving an estimated channel quality information, CQI, from a user terminal; (c) accounting for effects of the beam jitter on the estimated CQI to obtain a jitter-adjusted CQI estimate; (d) and using the jitter-adjusted CQI estimate during user scheduling for a future transmission to the user terminal. | 08-23-2012 |
20120220328 | Rank Indicator Transmission During Discontinuous Reception - A user equipment (UE) is disclosed. The UE includes a processor configured to transmit a rank indicator (RI) using one of an assigned periodic RI reporting resource that precisely aligns with the start on an on-duration of a discontinuous reception (DRX) operation mode of the UE and a first assigned periodic RI reporting resource after the start of the on-duration. | 08-30-2012 |
20120231830 | METHOD AND APPARATUS FOR INITIAL RANGING IN WIRELESS COMMUNICATION SYSTEM INCLUDING HETEROGENEOUS NETWORK - An apparatus and method for initial ranging in a wireless communication system including a heterogeneous network. An operation of a terminal includes selecting a serving cell considering a biased value of a base station applying range expansion. The operation also includes receiving ranging code classification information and threshold information associated with the serving cell. The operation further includes, if a channel quality with the serving cell is less than the threshold, selecting one a plurality of poor-expected-ranging codes indicated by the ranging code classification information, and performing initial ranging using the selected poor-expected-ranging code. | 09-13-2012 |
20120258754 | TECHNIQUES FOR ACHIEVING HIGH AVERAGE SPECTRUM EFFICIENCY IN A WIRELESS SYSTEM - Techniques for achieving high average spectrum efficiency in a wireless system are disclosed. In one particular embodiment, the techniques may be realized as a method of communicating with a wireless station comprising defining a plurality of beams to be generated by a beam-forming device, defining a set of beam groups wherein each beam group is a different subset of beams of the plurality of beams; repeatedly cycling through the set of beam groups by sequentially generating each group of beams among the set of beam groups; identifying a beam group among the set of beam groups which yields a best communication link with a wireless station; and scheduling communications with the wireless station to occur via the identified beam group when the identified beam group is being generated. | 10-11-2012 |
20120289275 | DEVICE AND METHOD OF CHANNEL INFORMATION FEEDBACK FOR MULTI-CELL MIMO - A mobile terminal is provided in the present invention, comprising: a channel state information feedback calculating unit configured to calculate a channel state information feedback between the mobile terminal and a serving cell of the mobile terminal and those between the mobile terminal and all cooperating cells; a channel quality information feedback calculating unit configured to calculate a channel quality information feedback for the serving cell of the mobile terminal; and a transmission unit configured to transmit the channel state information feedbacks and the channel quality information feedback to the serving cell. The present invention greatly improves the performance of a LTE-A system and greatly reduces feedback overhead. The present invention is a scalable feedback solution and may be flexibly applied to various coordinated multipoint transmission scenarios. | 11-15-2012 |
20120322488 | Method and Network Node in a Wireless Communication System - Network node ( | 12-20-2012 |
20130035128 | Narrowband Interference Avoidance for Dynamic Channel Assignment - Techniques are provided to improve the performance of wireless devices that serve wireless client devices in a wireless network in the presence of narrowband interference. The wireless device that serves wireless client devices in the wireless network receives energy in a plurality of channels of a frequency band. The received energy is analyzed for occurrence and type of interference in each channel. A quality metric is generated for each channel incorporating the occurrence and type of interference detected in the channel. For each channel, a bias value against selection of the channel is assigned based on whether narrowband interference is present in the channel. The bias value for each channel is applied to the quality metric for the channel to produce an adjusted quality metric for each channel. A channel is selected based on the adjusted quality metric for each of the plurality of channels. | 02-07-2013 |
20130072247 | APPARATUS AND METHOD FOR OPERATING MULTIPLE BEAMFORMING TRANSCEIVER IN WIRELESS COMMUNICATION SYSTEM - A method for operating a base station in a wireless communication system in order to support a plurality of propagation characteristics is provided. The method includes allocating resource periods for respective propagation characteristics, transmitting system information including information on the propagation characteristics, transmitting a reference signal with the propagation characteristic corresponding to the relevant resource period through at least one of the resource periods, and receiving feedback information determining channel qualities for all of the propagation characteristics. | 03-21-2013 |
20130102345 | UPLINK CONTROL METHOD AND APPARATUS IN WIRELESS COMMUNICATION SYSTEM - An UpLink (UL) control method and apparatus for in a wireless communication system supporting beamforming are provided. A method of a Mobile Station (MS) for UL control in the wireless communication system supporting the beamforming includes receiving a plurality of DownLink (DL) reference signals from a plurality of Base Station (BS) transmission beams using a plurality of MS reception beams having different directivity, measuring a path loss based on a reception signal strength of each of the plurality of DL reference signals received through different transmission/reception beams, selecting an MS transmission beam for uplink based on the path loss value measured for each of the plurality of DL reference signals, and transmitting a UL signal to a BS using the selected MS transmission beam. | 04-25-2013 |
20140018121 | APPARATUS AND METHOD FOR SELECTING D2D COMMUNICATION MODE DEPENDING ON SIGNAL INTERFERENCE - An apparatus and method select a Device (D2D) communication mode according to whether there is signal interference. A method of operating a Transmitting (Tx) terminal, linked to a Receiving (Rx) terminal, for performing D2D communication includes confirming that the terminal is included in at least any one of groups in which links are grouped according to a link priority, receiving a result of determining whether there is a signal interference caused by at least three in-group links from the Rx terminal, and selecting a communication mode for communicating with the Rx terminal according to whether the signal interference exists. | 01-16-2014 |
20140018122 | Communications System Density and Range Improvement by Signal-Strength-Directed Channel Class Selection with Weighting for Minimum Capacity Consumption - Methods and apparatuses for optimized channel selection are disclosed. In one example, a channel quality is measured of each channel of an available number of channels on which a mobile communication device can transmit and receive. A subset of the available number of channels is allocated to a long range channel class responsive to the channel quality. An RSSI of the mobile communication device is monitored and correlated to a mobile communication device proximity to a base station. A channel is selected from the long range channel class if the mobile communication device proximity is greater than a predetermined proximity. | 01-16-2014 |
20140024406 | SYSTEM AND METHOD FOR ASSESSING NOISE FLOOR DATA USING RADIO BLOCKING PERFORMANCE - An electronic device includes communications circuitry configured to communicate with an assistance server. The electronic device transmits a spectrum access request to the assistance server and receives, in response, an available channel list ranked by respective aggregate noise floor metric values from the assistance server. The aggregate noise floor metric value for each channel in the ranked channel list is determined by the server to account for a location of the electronic device, noise from radio frequency devices, and an adjacent channel blocking profile of the communications circuitry. | 01-23-2014 |
20140066117 | Method and Apparatus for Connection Context Aware Radio Communication Management - An information handling system includes a wireless adapter for communicating with a wireless link and a storage device for storing a spatial-temporal user profile comprising wireless service usage trend data for a location where the information handling system is operating. The storage device further includes storing a spatial-temporal radio frequency profile indicating signal quality for wireless links available at the location | 03-06-2014 |
20140080533 | NETWORK CONTROLLED TETHERING OF WIRELESS DEVICES - A method for tethering wireless devices includes assigning, by a wireless communication network access point, a master wireless device as a hotspot to provide communication services for a slave wireless device. The assignment may be based on first channel quality information and second channel quality information. The first channel quality information may be associated with a first communication channel between the master wireless device and the access point. The second channel quality information may be associated with a second communication channel between the master wireless device and the slave wireless device. The method may also include allocating a wireless communication resource to the master wireless device such that the master wireless device is configured as the hotspot. The allocation of the communication resource may be based on a determination that a parameter requirement of the communication resource associated with the master wireless device acting as the hotspot is met. | 03-20-2014 |
20140080534 | SIGNALING TO ENABLE NETWORK CONTROLLED TETHERING OF WIRELESS DEVICES - A method of signaling to enable tethering among wireless devices may include receiving, at a master wireless device, assignment information from a wireless communication access point. The assignment information may indicate that the master wireless device is designated as a hotspot for a slave wireless device. The method also may include determining an availability of an open frequency band for wireless communications, communicating an enabling signal to the slave wireless and receiving a confirmation of receipt of the enabling signal. Further, the method may include determining an allocation of a wireless communication resource over the open frequency band for the master wireless device to act as the hotspot for the slave wireless device. The allocation may be based on the confirmation of receipt of the enabling signal and on a parameter requirement associated with the master wireless device acting as the hotspot for the slave wireless device. | 03-20-2014 |
20140080535 | METHODS AND APPARATUS FOR SHARED ACCESS SYSTEM - Methods and apparatus for shared access systems may be used to allow operation in three-tiered shared spectrum architecture. For example, a Shared Spectrum Manager (SSM) may organize spectrum segments. The SSM may communicate with access users of different priority and may use message exchanges to request spectrum, bid for spectrum, manage spectrum, or the like. The SSM may manage admission of access users (allocation of spectrum to users) and operation with a spectrum request that may be provided as a range between a minimum (guaranteed) and maximum quality of operation. The SSM may also manage the way an access user may use the assigned spectrum. Inter-SSM communication may be used in regions where multiple SSMs may exist (e.g. country borders). Accordingly, triggers for this inter-SSM communications and corresponding actions are also disclosed herein. | 03-20-2014 |
20140094208 | Method and Apparatus for Determining Optimized Wireless Link Selection for a Mobile Device Along a Predicted Path - An information handling system includes a storage device for storing a spatial-temporal radio frequency profile for indicating signal quality for wireless links available at the location. The information handling system further includes an application processor that selects a predicted future path for a mobile information handling system during a future time interval. The application processor determines predicts radio quality of wireless links over the predicted future path selected for the system based on measured radio quality of service parameters for locations. | 04-03-2014 |
20140128117 | INTER-CELL INTERFERENCE COORDINATION METHOD AND APPARATUS FOR USE IN MOBILE COMMUNICATION SYSTEM - A data transmission and/or reception method of a base station in a wireless communication system is provided. The data transmission/reception method includes receiving information on interference measured by a terminal, allocating a downlink resource to a terminal based on the received interference information, determining per-subband transmit power distributions of the downlink resource allocation, and transmitting the per-subband transmit power distributions of the downlink resource allocation to neighbor base stations. | 05-08-2014 |
20140274183 | WIRELESS RESOURCE ALLOCATION OF DEVICE-TO-DEVICE COMMUNICATION - A method of allocating a wireless communication resource to a device-to-device (D2D) pair of wireless devices may include determining an access-point interference threshold of an access point of a wireless communication network. The method may further include determining a device-to-device (D2D) signal power of a D2D signal at the access point. The D2D signal may be associated with D2D communications between a D2D pair of wireless devices. The method may also include assigning a wireless communication resource to the D2D pair based on a comparison of the access-point interference threshold with an access-point interference value where the access-point interference value is based on the determined D2D signal power at the access point. | 09-18-2014 |
20150326994 | Method and Apparatus for Connection Context Aware Radio Communication Management - An information handling system includes a wireless adapter for communicating with a wireless link and a storage device for storing a spatial-temporal user profile comprising wireless service usage trend data for a location where the information handling system is operating. The storage device further includes storing a spatial-temporal radio frequency profile indicating signal quality for wireless links available at the location | 11-12-2015 |
20150341284 | LINK ESTABLISHING METHOD ON MULTI-CORE FIBER, LINK ESTABLISHING DEVICE, AND LINK PARTNER DEVICE - A link establishing method, a link establishing device and a link partner device are disclosed. A link establishing method performed by a link establishing device may include: exchanging link information on the link establishing device and link information on a link partner device through auto-negotiation messages; determining priority order of available links among a plurality of links connected between the link establishing device and the link partner device using the link information on the link establishing device and the link information on the link partner device; and establishing a link based on a multi-core fiber between the link establishing device and the link partner device on the basis of the priority order. | 11-26-2015 |
20150351086 | TECHNIQUES FOR ACHIEVING HIGH AVERAGE SPECTRUM EFFICIENCY IN A WIRELESS SYSTEM - Techniques for achieving high average spectrum efficiency in a wireless system are disclosed. In one particular embodiment, the techniques may be realized as a method of communicating with a wireless station comprising defining a plurality of beams to be generated by a beam-forming device, defining a set of beam groups wherein each beam group is a different subset of beams of the plurality of beams; repeatedly cycling through the set of beam groups by sequentially generating each group of beams among the set of beam groups; identifying a beam group among the set of beam groups which yields a best communication link with a wireless station; and scheduling communications with the wireless station to occur via the identified beam group when the identified beam group is being generated. | 12-03-2015 |
20160127953 | DYNAMIC AND FLEXIBLE CHANNEL SELECTION IN A WIRELESS COMMUNICATION SYSTEM - A method for operating a downlink transmitter radio to automatically determine transmission parameters includes monitoring the spectral content of a range of frequencies, and identifying, based on the monitored spectral content, spectral characteristics associated with noise or interference. The downlink transmission channel carrier frequency and channel frequency bandwidth are determined based on the spectral characteristics of the interference together with operating requirements of the wireless transmission system. | 05-05-2016 |
20160192109 | Method and Apparatus for Connection Context Aware Radio Communication Management - An information handling system comprising a wireless adapter for communicating via a wireless link and a storage device for storing a spatial-temporal user profile comprising wireless service usage trend data for a location where the information handling system is operating. The storage device further stores radiofrequency wireless traffic reports indicating signal quality for a plurality of wireless links available at the location and an application processor executes code of a context aware radiofrequency resource management system in determining link ratings for the plurality of wireless links available at the location based on the wireless service usage trend data for the information handling system and signal quality for the available wireless protocols for anticipated wireless service usage. | 06-30-2016 |