Patent application number | Description | Published |
20080261518 | Method for Transmitting Messages by Radio While Using a Repeater - A method transmits a message by radio from a transmitter to a receiver. In a first step, the transmitter transmits the message to a forwarding station. In a second step, the message is subsequently transmitted at the same time form the transmitter and the forwarding station to the receiver. A transmitter carries out the method. | 10-23-2008 |
20090175320 | Method to Determine the Number of Data Streams to Be Used in a MIMO System - The invention relates to a method to determine a transmission mode to be used at a MIMO-transmitter. The determination of an optimum transmission mode is done at the side of a MIMO-receiver. The receiver calculates for each stream of a maximum number of received streams an effective SINR-value for a given first linear dispersion code LDC. The SINR value of each stream is used to select, according to a desired BER target, a suitable modulation alphabet for each stream. A sum-rate is calculated over all streams and a first stream with a minimum effective SINR value is separated and is not considered furthermore. A linear dispersion code LDC with a smaller code rate than the first linear dispersion code LDC is selected and SINR-values for the remaining N-I streams are calculated. A new sum-rate is obtained accordingly. In case that the new sum rate of the remaining N-I streams is smaller than the sum rate of N streams, the sum-rate calculation is terminated. In all other cases, the step of separation of a stream with smallest effective SINR, the step of selection of a linear dispersion code LDC with a smaller code rate than the linear dispersion code LDC before and the step of calculation of SINR value for remaining streams are repeated accordingly. The most suitable code rate of the linear dispersion code LDC is selected after the termination and the code rate is reported to the transmitter, together with assigned quantized effective SINR value of each stream, to allow a final decision about a optimum transmission mode at the transmitter. | 07-09-2009 |
20090221315 | Method for Data Transmission in a Radio Communication System as Well as Radio Station and Radio Communications System - A first signal containing first data multiplied by a first weight factor is transmitted from a first radio station to a first terminal. The first weight factor is calculated taking into account a second weight factor to be used by a second radio station for transmission of a second signal containing the first data multiplied by the second weight factor, such that simultaneous reception of both the first signal and the second signal at the first terminal will cause the first data to be substantially cancelled. Further, the first weight vector is calculated taking into account first and second channel state information received from the first terminal. | 09-03-2009 |
20090285321 | Radio transmission with variable length of guard interval - Information, in particular OFDM-symbols, is transmitted via radio from an emitting unit to a receiving unit. At least one first symbol has a first total length, which includes a first time section during which first user data is transmitted and a second time section during which cyclic repetitions of the first user data are transmitted. Also, at least one second symbol has the first total length which includes a third time section, having a length different than the first time section, during which second user data is transmitted, and a fourth time section, having a length different than the second time section, during which cyclic repetitions of the second user data is transmitted. | 11-19-2009 |
20100002618 | Radio Communication with a Repeater - A first radio station receives a message in a first frequency band from a second radio station and passes the message to a third radio station in a second frequency band, where the width of the first frequency band differs from the width of the second frequency band. The modulation of the data in the message is maintained unchanged and the first radio station is not required to perform decoding of the message. | 01-07-2010 |
20100015914 | Methods and equipment for performing channel aware relays in an enhanced relay cluster - This invention provides a type of method used for providing channel aware relays in enhanced relay clusters. This method is based on the Centralized Cluster Relay Implementation Proposal, and is implemented by transferring MMR-BS channel information based functions to RS. Specifically, in this invention, RS receives authorization from the MMR-BS to receive the channel information from the MS or next single-hop RS point within its single-hop range, and, after performing applicable channel aware relays, reports the processing result to MMR-BS; MMR-BS configures the signal according to the processing result and joins RS to transmit the control signal to the cluster MS. Using the method provided by this invention can reduce the channel overhead between MMR-BS and RS, and at the same time ensure that the RS composition is simple, and the production costs are low. | 01-21-2010 |
20100027500 | Transmission pattern for the transmission of data in a radio communications system - A method for the transmission of data between base stations and terminal devices uses at least one first time-frequency-spectrum which contains a plurality of transmission resources. A transmission resource is defined by a section of the time-frequency-spectrum, which is formed by at least one subcarrier subdivided into time slots and by at least one time slot. As part of the method, data are transmitted between a base station and a terminal device in a frame on one transmission resource. The method is characterized in that the base station transmits the data in such a way that a combination of subcarriers and/or time slots of the transmission resource used for the transmission of the frame forms a transmission pattern characterizing the nature of the data. The base station selects the transmission pattern from a number of previously defined transmission patterns, depending on the nature of the data to be transmitted. | 02-04-2010 |
20100046402 | METHOD FOR OPERATING RADIO COMMUNICATION SYSTEM, INCLUDING SENDING STATION AND RECEIVING STATION THEREOF - In a radio communication system, at least a first frequency band is subdivided into C radio resource units which are allocable for radio transmissions between radio stations and terminals. Each radio resource unit has at least two adjacent subcarriers, for allocation of at least a first resource unit for a data transmission between a terminal and a radio station. The radio station receives from the terminal a first short training symbol which has spectrally the same bandwidth as the first frequency band and includes at least Q frequency carriers, where Q is greater or equal to C, but smaller than the total number of subcarriers. The radio station estimates the radio channel for at least the first radio resource unit using the first short training symbol, and an allocation of the first radio resource unit to the terminal is broadcasted by the radio station. | 02-25-2010 |
20100046659 | METHOD AND NETWORK SUITABLE FOR INCREASING THE SINR OF A DATA TRANSMISSION CHANNEL - A method for increasing the SINR of a data transmission channel is presented. A mobile network element, in applying a first method, performs a first estimate of the channel's SINR by changing a first characteristic of a signal transmitted through the channel. The mobile network element, in applying a further method, performs a further estimate of the channel's SINR by changing at least one further signal characteristic of the signal. The mobile network element selects which method yields a higher estimate of the channel's SINR. The mobile network element transmits a feedback signal to at least one affiliated base network element indicating the selected method that yields the highest channel SINR. Applying the selected method, the affiliated base network element changes the corresponding characteristic of a signal it transmits, thereby increasing the channel's SINR. | 02-25-2010 |
20100098182 | Method and/or OFDM device for SC-FDMA data transmission - In a method and/or an OFDM device for SC-FDMA data transmission, a sequence of input data is transformed by means of a discrete transformation as transformed data signals of coded and modulated data signals on first frequency channels into a first frequency space over a first number of frequencies. The transformed data signals are mapped on second frequency channels in a second frequency space with a larger second number of frequencies. The transformed data signals on the second frequency channels are inverse-transformed using an inverse transformation. Data inversely transformed in such a way are provided for transmission. The transformed data signals are mapped into a frequency range of the second frequency channels in such a way that a constant component of the transformed data signals is mapped centrally within the frequency range. | 04-22-2010 |
20100099415 | METHOD FOR CHANGING ROUTE IN WIRELESS COMMUNICATION - A method for changing a route in wireless communication involves: when there is subscriber equipment requesting a change of route in a cell, a base station negotiates downlink measurement contents with a relay station facilitating the route change in the cell; a network side informs the subscriber equipment requesting a change of route of the negotiated downlink measurement contents, and the subscriber equipment executes a downlink measurement according to the received measurement contents and reports the downlink measurement results to a radio access point; and the radio access point executes the route change for said subscriber equipment according to the received measurement results. The method can effectively improve the accuracy of the route change and alleviate the delay due to the route change. | 04-22-2010 |
20100099422 | Data transmission in a multi-user ofdm system with adaptive modulation - A method processes information to be sent via radio, according to which first bits represent a first number of N-tuples and second bits represent a second number of N-tuples. The first bits are to be sent using a first group of sub-bands of a frequency band, and the second bits are to be sent using a second group of sub-bands of the frequency band. A first modulation method is used for the first bits and a second modulation method is used for the second bits. The first bits are rearranged, forming M-tuples, and a symbol is formed from each M-tuple according to the first modulation method. The second bits are rearranged, forming P-tuples, and a symbol is formed from each P-tuple according to the second modulation method, and M≠P. A corresponding method is used for processing information received by radio. Base stations and mobile radio stations carry out the method. | 04-22-2010 |
20100128767 | Method and Device for Processing Data and Communication System Comprising Such Device - A method and a device for data processing perform the following steps: (i) data is sent from a first network component to an at least one second network component via at least two lines; and (ii) the first network component transmits a measurement tag via at least one line of the at least two lines. | 05-27-2010 |
20100130193 | METHOD AND APPARATUS OF USING A RELAY STATION TO ASSIST PROCESSING OF REQUESTS FROM USER ENDS - A method of uses a relay station to assist processing of requests from user ends. The relay station acquires and monitors channel resource information received from a base station. Upon receiving a request from the UEs via the channel resource, the relay station sends the request received to the base station if it detects no response from the base station to the request. An apparatus uses a relay station to assist processing of requests from UEs. A channel resource acquisition unit acquires channel resource information from the base station. A user monitoring unit monitors the channel resource acquired by the channel resource acquisition unit and for receiving requests sent from the UEs. A base station monitoring unit monitors response from the base station to the requests upon receiving the requests sent from the UEs. A transmitting unit sends the request to the base station when no response from the base station to the request is detected. | 05-27-2010 |
20100138556 | Method and Device for Processing Data and Communication System Comprising Such Device - A method and a device for processing data are provided said data is preferably transmitted from a first network component to at least one second network component via at least two lines, wherein the method comprises the step: The data to be conveyed via the at least two lines is distributed within a at least one frame. | 06-03-2010 |
20100142600 | METHOD AND DEVICE FOR REDUCING TRANSMISSION POWER OF PACKET ORIENTED DATA AND COMMUNICATION SYSTEM COMPRISING SUCH DEVICE - A method and a device for transmitting packet-oriented data are provided. The packet-oriented data includes information data and idle data. The idle data includes at least one symbol of lower amplitude. | 06-10-2010 |
20100189079 | Method, mobile station and base station for transmitting data in mobile communication system - Data in a mobile communications system is transmitted on at least one channel between at least one base station with multiple antennas and at least one user equipment. A base station applies precoding to the data based on a set of predefined codebooks. A first tracking mode with a first codebook from the set of predefined codebooks is used for the precoding, and at least a second tracking mode with at least a second codebook from the set of predefined codebooks is used for the precoding. The base station switches between the first tracking mode and the second tracking mode depending on at least one condition of the channel. | 07-29-2010 |
20100202379 | Method and Device for Operating at Least Two Radio Access Technologies and Communication System Comprising Such Device - A method and a device are provided for operating at least a first radio access technology and a second radio access technology, the method including the step of: a hybrid radio frame is provided including elements of the first radio access technology and of the second radio access technology. | 08-12-2010 |
20100277394 | Adaptive Adjustment of an Antenna Arrangement for Exploiting Polarization and/or Beamforming Separation - It is described an antenna arrangement for transmitting and/or for receiving electromagnetic radiation. The antenna arrangement includes two antenna elements, which are adapted for transmitting and/or for receiving electromagnetic radiation of a first polarization. The antenna arrangement further includes one antenna element, which is adapted for transmitting and/or for receiving electromagnetic radiation of a second polarization being different from the first polarization. Furthermore, there is provided one coupling unit, which is adapted to couple, based on an appropriate control signal, the antenna elements selectively with one terminal of the antenna arrangement in such a manner, that the polarization direction of the antenna arrangement can be adjusted to the first polarization or to a combination of the first and the second polarization. | 11-04-2010 |
20100285743 | METHOD, SYSTEM, RELAY STATION AND BASE STATION FOR TRANSMITTING DATA MOBILE COMMUNICATION - A mobile communication data transmission method for a cell having one base station and more than one relay station involves switching the relay stations between at least two operating modes of signaling transmission under the control of the base station. A system transmits mobile communication data in a cell having one base station and more than one relay station. When transmitting an uplink signaling or a downlink signaling, the relay stations switch between at least two operating modes under the control of the base station. By using the method, network, relay station, and base station, data transmission in multiple modes can be achieved, so as to achieve a flexible relay scheme. | 11-11-2010 |
20100293428 | Method for Transmitting Data to User Equipments, Communication System, Base Station and User Equipment - A method is provided for transmitting data to user equipments, a communication system, a base station and a mobile station. Data is transmitted to user equipments from a first base station (BBS) and from second base stations (CBS) in a time division multiplexed manner in frames (F). Each frame (F) has a first sub-frame and a second sub-frame. The user equipments are located in cells, each cell comprising a second base station (CBS). Data is transmitted wirelessly, during a first sub-frame of a frame, data from the first base station (BBS) to user equipments in a plurality of cells. Data is transmitted wirelessly, during the second sub-frame of the frame (F), from second base station (CBS) to at least one the plurality of user equipments. The data being transmitted from the first base station (BBS) is also transmitted by the second base station (CBS) to at least one of the plurality of cells. | 11-18-2010 |
20110033186 | Method, System and Radio Station for Interference Cancellation - A method detects a first baseband signal sent by a first sending station via an air interface to a first radio station of a radio communications system. A first receive signal, which contains the first baseband signal superposed with at least a second baseband signal sent by a second sending station to a second radio station, is received by the first radio station. The first radio station uses at least a second receive signal received by the second radio station for detection of the first baseband signal. The second receive signal contains at least the second baseband signal, and is used to at least partially cancel the interference in the first receive signal caused by the second baseband signal. | 02-10-2011 |
20110064160 | Method for Transmitting Data in a MIMO System and Communication System for Transmitting Data in a MIMO System - Method for transmitting data in a MIMO system and communication system for transmitting data in a MIMO system. A method for transmitting data in a communication system is provided. The method includes the steps of selecting a first channel (C | 03-17-2011 |
20110087797 | METHOD AND DEVICE FOR PROCESSING DATA IN A NETWORK COMPONENT AND SYSTEM COMPRISING SUCH A DEVICE - A method, a device and a system are provided for processing data in a first network component comprising the steps of (i) the data is received by the first network component from a second network component; and (ii) the data is processed by a filter function according to which the whole data or a portion of the data is used. | 04-14-2011 |
20110090782 | METHOD AND DEVICE FOR DATA PROCESSING AND COMMUNICATION SYSTEM COMPRISING SUCH DEVICE - In a method and a device for data processing at a network component the following steps are carried out: a multiple-input-multiple-output processing is conducted and based on such processing a crosstalk and/or interference is at least partially reduced or cancelled. The device may be incorporated into a communication system. | 04-21-2011 |
20110110247 | Routing Node and Terminal for an FDD Communication Network and Method for Operating Them - One exemplary aspect of the invention provides a routing node for an FDD communication network, which node has a node receiving apparatus, which is set up in such a manner that it can be used to receive signals from a terminal at a first frequency, and a node transmitting apparatus which is set up in such a manner that it can be used to transmit signals to the terminal at a second frequency. In this case, the routing node is set up in such a manner that it can transmit an indication signal to the terminal, which signal indicates whether the routing node can receive signals at the first frequency at a given point in time. | 05-12-2011 |
20110131461 | Communication Network Element and Mthod Transmitting Data - A method of transmitting data in a communication network is provided, wherein the method includes receiving an error message indicating that a data packet precoded by using a first matrix and transmitted a first time by using a cooperative transmission scheme is not decoded correctly, preparing an recoded data packet by precoding the data packet using a second matrix which is different to the first matrix, and retransmitting the recoded data packet. | 06-02-2011 |
20110138245 | Communication Network Element and Method for Transmitting Data - A method of transmitting data in a communication network is provided, wherein the method includes sending an error message indicating that a data packet transmitted using a cooperative transmission scheme on a first channel is not decoded correctly, and retransmitting the data packet using a second channel which is different from the first channel. | 06-09-2011 |
20110222479 | Transmission and Reception of a Wideband Signal with Narrowband Interference - It is disclosed a method including accommodating, in frequency domain, a first bandwidth of a first carrier signal with respect to a second bandwidth of a second carrier signal such that the first bandwidth adjoins to or overlaps the second bandwidth, the first bandwidth being greater than the second bandwidth. In a further aspect, prior to the transmission, the interference of the modulated second carrier signal is subtracted from each of the plurality of subcarrier signals of the first carrier signal. | 09-15-2011 |
20110235607 | Method and Communication Network Element for Transmitting Reference Signals - A method of transmitting reference signals in a communication network from a first network element to a second network element is provided, wherein the method includes transmitting first type of reference signals using a first resource of a frame wherein the first type of reference signals are related to a first communication system, and transmitting second type of reference signals using a second resource of the frame wherein the second type of reference signals are related to a second communication system. | 09-29-2011 |
20110269481 | Model Based Channel State Information Feedback - The proposed methods and devices provide a new technique for feeding back CSI information of a channel between a network element and a user equipment to the network element by feeding back a location of the user equipment. The new technique opens completely new options for multi user scheduling and channel prediction. According to embodiments, a proposed user equipment configuration is indicated to the user by the user equipment. | 11-03-2011 |
20110275392 | Method for Channel Estimation, Base Station and Mobile Node - The present invention refers to channel estimation in a communications network. According to the present invention, first two reference signals are transmitted by a base station to a set of mobile nodes in said communications network, wherein said base station includes first two antenna ports and wherein each of said first two reference signals refers to one antenna port of said first two antenna ports. Further, at least one second reference signal is transmitted by said base station to a cooperating mobile node, wherein said cooperating mobile node is included in said set of mobile nodes; said cooperating mobile node is assigned to a cooperation area in said communications network, said cooperation area being defined by said base station; and said at least one second reference signal refers to a corresponding further antenna port of further antenna ports included in said base station. | 11-10-2011 |
20110280163 | Precoding in Telecommunication Network - It is described a method for compensating interference effects within a telecommunication network including at least a first base station and a second base station, which serve in a cooperative manner a first user equipment and a second user equipment by using time division duplex. The method is applied in an operational state, in which the first base station is in a downlink mode and the second base station is in an uplink mode. The method includes (a) determining at least one of a first channel state information between the first base station and the second base station and a second channel state information between the first user equipment and the second user equipment, (b) encoding data signals based on the first and/or the second channel state information, and (c) transmitting the encoded data signals by the first base station and/or by the second base station. It is further described a telecommunication network, a program element and a computer readable medium, which are adapted to carry out or control the described method. | 11-17-2011 |
20110312357 | Method for Generating Cooperation Areas in Communications Networks and Corresponding Network Nodes - The present invention refers to generating of cooperation areas in a communications network, wherein each cooperation area is defined by at least two base stations of said communications network, which are cooperating when communicating with mobile nodes in said communications network. In particular, a number of sets of possible interferers is transmitted to at least one mobile node by a base station, wherein with each set of possible interferers an index value associated to said set of possible interferers is transmitted. Then, said mobile node selects a set of possible interferers from said number of sets of possible interferers and transmits a selected index value to said base station, said selected index value being an index value associated to said selected set of possible interferers. Hereupon, a cooperation area for said mobile node is defined by said base station by use of said selected index value. | 12-22-2011 |
20120027005 | Spatial Pre-Coding for Transmitting Data Within a Mobile Telecommunication Network - It is described a method for transmitting data within a mobile telecommunication system from a user equipment having at least two transmit antennas to a base station having at least two receive antennas. The method includes (a) providing a number of data streams at the user equipment, wherein the number of data streams is smaller than or equal to the number of transmit antennas, (b) applying a spatial pre-coding to the data streams, and (c) transmitting the spatially pre-coded data streams to the base station via the transmit antennas, wherein the number of transmit antennas used for transmitting the spatially pre-coded data streams is larger than the number of data streams. It is further described a corresponding method for receiving data, a user equipment for carrying out the data transmitting method, a base station for carrying out the data receiving method and a computer program for controlling the described data transmitting and/or receiving method. | 02-02-2012 |
20120113897 | Method and Device for Data Processing in a Communication Network - A method and a device for data processing in a communication network are provided, wherein a mobile terminal receives several input signals from at least one base station; and wherein the mobile terminal processes said several input signals into a feedback information that is conveyed to at least one base station. | 05-10-2012 |
20120155366 | Controlling Scheduling Decisions in a Distributed Cooperation System - Feedback information is received from user equipments served by jointly processed data streams of a coordinated multipoint transmission at each base station of base stations serving the jointly processed data streams, and scheduling data is decided for the user equipments based on the feedback information and scheduling rules. The scheduling rules may be determined at least in part by one of the base stations and scheduling decisions by the base stations may be synchronized. Scheduling decisions may be transferred via a backhaul link and/or over the air, which may include scheduling decisions for future transmission time intervals. | 06-21-2012 |
20120176982 | Transparent frequency shift Solution for Comp - A method is described, which includes controlling a coordinated transmission between network control elements and terminals on resource elements, detecting whether a resource element includes a specific element, and selecting a resource element for the coordinated transmission, when it is detected that the resource element does not include a specific element. The application also describes some further aspects to improve a coordinated transmission such as a coordinated multipoint transmission is improved. | 07-12-2012 |
20120177092 | Apparatuses and Methods for Coordinated Multipoint Transmission Using Compressed Feedback Information - The present invention provides a mobile communication device including a sending and receiving unit and a processing unit, wherein the sending and receiving unit is adapted for the transmission of a signal pattern over a communication channel, wherein the signal pattern includes a logical data unit having a defined size, wherein the processing unit is adapted for compressing information prior to transmission using a compression scheme and wherein the logical data unit is adapted for containing the compresses information for transmission. | 07-12-2012 |
20120207092 | Channel-Adaptive Transmission in a Distributed Coordinated Multi-Point Transmission System - A user equipment obtains channel state information for base stations serving the user equipment according to a coordinated multi-point transmission, arranges the channel state information in a predetermined order, and transmits the channel state information in the predetermined order. At least one base station of the base stations receives the channel state information, arranges the channel state information in the predetermined order into a datagram, and transmits the datagram to at least one other base station of the base stations. | 08-16-2012 |
20120218953 | Mobile Communication Device, Network Node and Communication System for Coordinated Multipoint Transmission Comprising Self-Containment Information of a Channel-Dependent Attribute - The present invention provides a mobile communication device including a sending and receiving unit, wherein the sending and receiving unit is adapted for the transmission of a signal pattern over a communication channel, wherein the signal pattern includes at least two logical data units, wherein the signal pattern includes information of information to be transmitted, wherein in a first logical data unit absolute information of information to be transmitted is provided, wherein in at least one second logical data unit relative information of information to be transmitted is provided, wherein the relative information of information to be transmitted is depending at least in part on the absolute information of information to be transmitted and/or a preceding relative information of information to be transmitted, wherein the at least one second logical data unit further includes self-containment information of information to be transmitted. | 08-30-2012 |
20120250557 | Resolving Channel State Information Outdating - It is described a method of operating a base station and a base station which uses a communication channel depending on channel state related information and time information e.g. a prediction time. In this way, problems due to outdating of the channel state related information may be overcome and a feedback overhead may be reduced. According to other embodiments, other parameters like a used prediction method, a prediction horizon, etc. are used to provide a better scenario adaption. Other embodiments relate to combined long term prediction and short term prediction and respective timing settings. Other embodiments relate to a method of operating a user equipment and a user equipment which is adapted for communicating the required time information between the base station and the user equipment. | 10-04-2012 |
20120289240 | Method and Device for Determining a Cooperation Area - A method and a device for determining a cooperation area for a mobile terminal in a cellular network, wherein the mobile terminal determines its n strongest interferers; wherein the cooperation area is selected for the mobile terminal regarding the n strongest interferers; and wherein the cooperation area includes m base stations and wherein the number m of base stations is larger than the number n of strongest interferers. Furthermore, a communication system is suggested including said device. | 11-15-2012 |
20120307639 | Method and Device for Data Processing in a Network - A method and a device for data processing in a network is provided, wherein a centralized network component adjusts a coordinated multipoint transmission of cells of the network based on information provided by the network and/or by said cells. Furthermore, a communication system is suggested including said device. | 12-06-2012 |
20120329401 | Method and Device for Monitoring Backbone Inter Base-Station Communication - A method and a device for data processing in a network are provided, wherein a base station determines a performance of a connection to at least one other base station. Furthermore, a communication system is suggested comprising said device. | 12-27-2012 |
20140313995 | Transmission And Reception Of A Wideband Signal With Narrowband Interference - It is disclosed a method comprising accommodating, in frequency domain, a first bandwidth of a first carrier signal with respect to a second bandwidth of a second carrier signal such that the first bandwidth adjoins to or overlaps the second bandwidth, the first bandwidth being greater than the second bandwidth. | 10-23-2014 |