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Invention relates to communication engineering and can be used in wireless communication systems. In a wireless communication terminal, a SC-FDMA signal is divided into a plurality of clusters and the plurality of clusters are then mapped to respective discontinuous frequency bands. In the device, a DFT unit subjects a symbol sequence of the time domain to a DFT process, thereby generating signals of the frequency domain. A setting unit divides the signals input from the DFT unit into a plurality of clusters according to a cluster pattern which is in accordance with an MCS set, an encoding size or the number of ranks occurring during MIMO transmissions, which is indicated in said input signals, and then maps the plurality of clusters to the respective ones of a plurality of discontinuous frequency resources, thereby setting a constellation of the plurality of clusters in the frequency domain. |
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Wireless communication device and wireless communication method Invention relates to wireless communication using a multiple input, multiple output (MIMO) technology, and enables to prevent quality deviation between spatial streams on a plurality of terminal devices in multiple-user MIMO transmission. The wireless communication device according to the present invention is a wireless communication device for spatial multiplexed transmission on a plurality of terminal devices, which includes an additional data region installation section which allocates, as an additional data region, part of a resource allocation region to which no data are allocated, said data being addressed to each terminal device from a plurality of terminal devices, among resource allocation regions for spatial multiplexed transmission, which are allocated to each terminal device from the plurality of terminal devices, an additional data generator which generates additional data corresponding to the additional data region, allocated via the additional data region installation section, and a transmitter which transmits data that are addressed to each terminal device from the plurality of terminal devices, and additional data. |
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Invention relates to telecommunications and can be used for rapid detection of faults in signal processing equipment and an optical interface board. The signal processing equipment includes n function modules F1, F2, … Fn, and n fault detecting points T1, T2, … Tn for determining whether there is a fault in said n function modules, where n is a natural number. If the detecting result of said detecting point Ti indicates that there is a fault in the function module Fi, the corresponding detecting points of other function modules directly associated with the function module Fi are detected, and the reason of the fault is determined for all the fault function modules. The present invention divides the equipment or the board into different modules in accordance with functions, each module having a corresponding fault detecting point. |
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Invention relates to wireless communication. In the wireless communication system, a transmitting device transmits for each of a plurality of data streams a data block with associated identification information of the data block, which does not conflict between data streams. A receiving device performs synthesis of retransmission for an already received data block and a retransmitted data block to which the same data block identification information is associated, based on data block identification information associated with the received data block. Also, if the number of streams transmitted between the transmitting device and the receiving device varies (decreases), the data block matching property which is the objective of the retransmission synthesis, can be preserved and communication can continue in normal mode. |
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Present invention relates to wireless communication. In the wireless communication system, a transmitting device transmits for each of a plurality of data streams a data block with associated identification information of the data block, which does not conflict between data streams. A receiving device performs synthesis of retransmission for an already received data block and a retransmitted data block to which the same data block identification information is associated, based on data block identification information associated with the received data block. Also, if the number of streams transmitted between the transmitting device and the receiving device varies (decreases), the data block matching property which is the objective of the retransmission synthesis, can be preserved and communication can continue in normal mode. |
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Invention relates to multiple input multiple output (MIMO) mobile communication systems and is intended to improve efficiency of using precoding matrix information (PMI), and discloses a user device in a mobile communication system using MIMO and precoding, which includes a PMI indicator generator which generates PMI indicating the precoding matrix to be used by a base station; a transmitter which transmits the PMI as feedback to the base station; a receiver which receives a signal from the base station, wherein the signal received by the receiver contains information indicating if it corresponds to PMI transmitted as feedback from the user device, after a predefined period of time from the moment of transmitting PMI from the user device as feedback. |
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Channel arrangement method and radio base station device In the device, after encoding, channel data are modulated to form a data symbol. An allocation unit allocates the data symbol for respective subcarriers constituting an OFDM symbol and outputs them to a multiplexing unit. When a data symbol of one mobile station is used for a plurality of channels, the allocation unit uses channels with continuous channel numbers. |
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Efficient filter weight computation for mimo system Invention relates to communication engineering and can be used in MIMO systems. Techniques to efficiently derive a spatial filter matrix are described. In a first scheme, a Hermitian matrix is iteratively derived based on a channel response matrix, and a matrix inversion is indirectly calculated by deriving the Hermitian matrix iteratively. The spatial filter matrix is derived based on the Hermitian matrix and the channel response matrix. In a second scheme, multiple rotations are performed to iteratively obtain first and second matrices for a pseudo-inverse matrix of the channel response matrix. The spatial filter matrix is derived based on the first and second matrices. In a third scheme, a matrix is formed based on the channel response matrix and decomposed to obtain a unitary matrix and a diagonal matrix. The spatial filter matrix is derived based on the unitary matrix, the diagonal matrix, and the channel response matrix. |
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Ldp and igp synchronisation for broadcast networks Invention relates to setting up networks and more specifically to synchronisation of a label distribution protocol (LDP) and an interior gateway protocol (IGP) for broadcast networks without causing non-optimum traffic rejection. A broadcast interface is used to carry traffic on a label-switched path. If an alternative path exists, the broadcast interface will not be declared a broadcast network until LDP becomes operational for all neighbours on the broadcast interface. |
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Radio base station, mobile station and radio communication method Invention relates to a mobile communication system which defines a multiple input multiple output (MIMO) scheme as a radio transmission method, and is intended to increase the number of transmission levels. A radio base station (20) has a plurality of transmitting antennae, a module (22) for generating an orthogonal sequence of a reference signal, which is designed to generate orthogonal reference signals based on a two-dimensional orthogonal code, wherein the orthogonal reference signals are made orthogonal between downlink reference signals, adjacent to each other on two axes in the direction of the frequency axis and the direction of the time axis at one transmission level, and are made orthogonal at different transmission levels assigned to one radio communication resource, a multiplexer (23) designed to multiplex transmitted data and orthogonal reference signals at one transmission level, and a transmitter designed to transmit a transmitted signal, which is obtained by multiplexing transmitted data and orthogonal reference signals using a transmitting antenna simultaneously at transmission levels. |
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Method and device for link protection in virtual private local area network Invention relates to network data communication technology and particularly to a method and a device for link protection in a virtual private local area network. The technical result is reducing loss of data by creating a standby tunnel to which service is switched if malfunction is detected in the main tunnel. The method disclosed herein includes: in a networking process of a VPLS network, a link protection device establishing a main tunnel and a standby tunnel of MPLS TE for a link, and creating a VPLS forwarding table to deal with the information of the established MPLS TE main tunnel and standby tunnel; and when receiving a VPLS message, the link protection device searching the information of the MPLS TE main tunnel of the VPLS message according to a way of accessing the VPLS network of the VPLS message and the VPLS forwarding table, and if the found MPLS TE main tunnel is invalid, then transmitting the received VPLS message by adopting the standby tunnel of the MPLS TE main tunnel. |
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Wireless communication device and assembly control method Invention discloses a wireless communication device which includes: a scrambling unit (214) which multiplies a modulated response signal by a scrambling code "1" or "-1" in order to invert a plurality for each of the response signals on a cyclic shift axis; an expansion unit (215) which performs primary spectrum expansion of the response signal using a ZAC sequence established by a control unit (209); and an expansion unit (218) which performs secondary spectrum expansion of the response signal once subjected to primary expansion, using a block expanding code sequence established by the control unit (209). |
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Mobile terminal, radio base station and radio communication method Invention relates to communication engineering. In the radio communication method, a mobile terminal receives a downlink signal which includes precoding information, divides a data signal and a control signal for allocation of different radio communication resources thereto and transmits, according to a MIMO scheme, the signal of each transmission level based on the precoding information, wherein the radio base station receives an uplink signal, which includes a data signal and a control signal transmitted according to a MIMO scheme, divides the uplink signal into data signals for each transmission level and restores the control signal from the uplink signal. |
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Signal transmission and reception apparatus and signal transmission and reception method Invention relates to a method/apparatus for transmitting and receiving a broadcast signal based on the DVB-C2 digital broadcast standard. The technical result is improved data transmission efficiency. Said technical result is achieved due to that the method of transmitting a broadcast signal includes: mapping header data bits to header data symbols and data bits to data symbols; assembling at least one data slice based on the data symbols; time-interleaving the data symbols on the data slice level in a suitable manner for a channel positioning system; assembling a signal frame based on the header data symbols and the data slice, wherein the header data symbols comprise level L1 signalling information for transmitting data slice signals; modulating the assembled signal frame via orthogonal frequency-division multiplexing; and transmitting the modulated signal frame. |
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Invention relates to communication engineering and can be used in optical communication systems. The communication system comprises: nodes (1021-102n), configured to communicate with one or more devices; a central node (100); a passive optical network (106), having a multiplexer/demultiplexer (108), configured to demultiplex a first optical signal transmitted from the central node (100) to nodes (1021-102n), and multiplex second optical signals, obtained from one or more nodes (1021-102n), each assigned a wavelength on which it emits an optical signal; wherein for forward transmission of signals from one node (1021-102n) to at least one of the other nodes (1021-102n), said node (1021-102n) is configured to emit, at a wavelength assigned to said at least one other node (1021-102n), an optical signal comprising a signal to be transmitted; and the multiplexer/demultiplexer (108) of the passive optical network (106) is configured to combine the optical signal from said one node (1021-102n) with the first optical signal. |
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Invention relates to a mobile communication system in which a carrier aggregation scheme is used, and is aimed at facilitating data communication by modifying the connection relationship between component carriers. The invention particularly discloses a method of transmitting data through user equipment, comprising steps of: receiving a message including identifier information for modifying a connection relationship between at least one downlink component carrier and at least one uplink component carrier from a base station; receiving predetermined data through at least one downlink component carrier from the base station; and transmitting feedback data to the base station for data received through the uplink component carrier modified according to the identifier information. |
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Invention relates to communication engineering and can be used in an orthogonal frequency division multiple access (OFDMA) communication system. The signalling channel is used to provide signalling, acknowledgement and power control to access terminals within the system. The shared signalling channel can be assigned to a predetermined number of sub-carriers within any cycle. The assignment of a predetermined number of sub-carriers to the shared signalling channel establishes a fixed bandwidth overhead for the channel. The actual sub-carriers assigned to the channel can be varied periodically, and can vary according to a predetermined frequency hopping schedule. The amount of signal power allocated to the signalling channel can vary on a per symbol basis depending on the power requirements of the communication link. The shared signalling channel can direct each message carried on the channel to one or more access terminals. Unicast messages allow the channel power to be controlled in accordance with the needs of individual communication links. |
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Encoding rate setting method and radio communication device Invention relates to radio communication. In the device, an encoding rate setting unit (122) sets the encoding rate R'control of the control information which is time-multiplexed with user data, according to the encoding rate Rdata of the user data, ΔPUSCHoffset as the PUSCH offset of each control information, and ΔRANKoffset as the rank offset based on the rank value of the data channel using expression (1) , where x is an integer not greater than x, and max(x, y) is the greater of X and Y. |
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Radio communication device and signal division method Invention relates to communication engineering and can be used in wireless communication systems. The radio communication device reduces ISI caused by destruction of an orthogonal DFT matrix even when an SC-FDMA signal is divided into a plurality of clusters and the clusters are respectively mapped to discontinuous frequency bands. The radio communication device includes a DFT unit (110), a division unit (111), and a mapping unit (112). The DFT unit (110) uses the DFT matrix to execute a DFT process on a symbol sequence in a time region to generate a signal (SC-FDMA signal) of the frequency region. The division unit (111) generates a plurality of clusters by dividing the SC-FDMA signal with a partially orthogonal bandwidth corresponding to the vector length of some of the column vectors constituting the DFT matrix used in the DFT unit (110) and orthogonally intersecting at least partially. The mapping unit (112) maps the clusters to discontinuous frequency bands. |
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Mimo transmission device and mimo transmission method Invention relates to communication engineering and can be used in wireless communication systems. A terminal (100) as the MIMO transmission device maps a first and a second element of the ACK/NACK signal vector formed from ACK/NACK signals onto a first and a second stream, respectively, and transmits the elements contained in a 2SC-FDMA symbol in a time single slot. In the terminal (100), a response signal vector formation unit (140) forms [aSack, 0] as the ACK/NACK signal vector in a first SC-FDMA symbol and [0, aSack] as an ACK/NACK signal vector in a second SC-FDMA symbol. A precoding unit (165) uses a unitary matrix to precode the ACK/NACK signal vector formed in the response signal vector formation unit (140). |
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Method and apparatus for synchronising and demultiplexing component signals in digital streams Invention relates to digital engineering and can be used in designing high-speed multiplexers of digital streams. The method of synchronising and demultiplexing component signals in digital streams involves synthesising a model of an input digital stream, storing the model in random-access memory and processing L bits of the input digital stream in each clocking signal cycle. The apparatus for synchronising and demultiplexing component signals in digital streams, which implements the method, comprises an input register, a model storage unit, L comparator units, a logic multiplexer, a synchroniser control unit and demultiplexing channel units. |
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Method of generating digital broadcast signal Invention relates to a method of transmitting signals, primarily broadcast signals. Disclosed is a method of generating a digital broadcast signal, which involves sampling/generating analogue signal readings, level quantisation of the readings and converting the level quantisation results to a digital signal, wherein the number of readings is increased during level quantisation, and sampling frequency is halved when generating analogue signal readings, while maintaining the bit rate. |
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Radio communication device and constellation control method Invention discloses a radio communication device which includes a scrambling unit (214) which multiplies a response signal after modulation, by a scrambling code "1" or "e-j(π/2)" so as to rotate a constellation for each of the response signals on a cyclic shift axis; a spread unit (215) which performs a primary spread of the response signal by using a ZAC sequence set by a control unit (209); and a spread unit (218) which performs a secondary spread of the response signal after being subjected to the primary spread, by using a block-wise spread code sequence set by the control unit (209). |
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Mobile terminal, radio base station and communication method Invention discloses a mobile terminal, having a reference signal generator (11), designed to generate demodulation reference signals using ZC sequences, and a cyclic shift module (13), designed for cyclic shift of demodulation reference signals in units of a plurality of antenna elements (19) for orthogonalisation of demodulation reference signals for antenna ports (19) between antenna ports (19), wherein cyclically shifted demodulation reference signals are transmitted to a radio base station eNB by through corresponding antenna ports (19) in an uplink. |
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Method of arranging pilots in mobile radio communication system and transceiver applying said method In a pilot arrangement method in a mobile radio communication system by which, in order to avoid the problem of poor CQI accuracy affecting the scheduling of channel arrangement, causing deterioration of throughput, the working frequency band is divided into a plurality of predetermined bands and time division multiplexing is performed. A known pilot symbol is inserted into the given frequency band at predetermined standard intervals. Also, a known pilot symbol is inserted into at least one of the predetermined frequency bands at shorter intervals than the predetermined standard intervals and is arranged there. |
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Method and apparatus for reducing system overhead Connection identifier (CID) is divided into a CID part 1 carried on a MAP IE and a CID part 2 carried on the generic MAC-PDU headers of one or more MAC PDUs. Versions of RCID-IE() in MAP messages may used to represent CID part 1. The generic MAX PDU headers (GMH) may vary according to the length of CID part 1, and multiple GMHs in a PHY burst may have different CID parts 2. In addition, the type header field of the GMH may be shortened or removed. Alternatively, a modified GMH may have an extended type sub-header field. In addition, the GMH may use a shorter connection index or a connection index mask instead of a CID. |
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Sychronisation network configuration Configuration of a synchronisation network node involves determining information on synchronisation sources of a plurality of synchronisation trails for passing synchronisation information from a synchronisation source to a node to provide a synchronisation reference signal. After determining automatically synchronisation transmission characteristics of trails which use packet-based communication, the trails are compared automatically, using their source information and their synchronisation transmission characteristics, for selecting which of these trails to use for providing the synchronisation reference signal for the node (N). |
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Multichannel optical add/drop multiplexer Device consists of third, second and first level channel splitters, third (GSK-16), second (GSK-4) and first (OSK) level standard spectral channel switches, first, second and third level channel couplers, as well as a control unit which generates commands for setting up the operating mode of the multiplexer and switching the standard spectral channels. |
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Method involves measuring in each active satellite terminal the rate of packet data traffic from terminal equipment and the occupation of the input buffer of the satellite terminal in periods of time that are multiples of the super-frame duration; determining the optimum value of the quantile level for predicted values of the rate of packet data into the satellite terminal buffer one, two and three super-frames ahead; generating a request for dynamic backup of capacity taking into account QoS requirements based on the occupation of the input buffer and requests generated at previous super-frames, as well as packet traffic rate prediction data, carried out taking into account the quantile level characterising backup redundancy. |
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Transmitting device and receiving device in cellular communication system In a multi-carrier cellular communication system, a second synchronisation code (a Walsh code or a GCL series code) mapped on a second synchronisation channel is used as a signal for specifying in which cell of the base station a mobile station terminal device is located. A signal transmitted from the base station to the mobile station terminal device is mapped in a radio frame having two-dimensional extension in frequency and time directions. The synchronisation channel on which the first and second synchronisation channels are mapped is built into a plurality of areas in the radio frame. When mapping a certain series number of the second code for specifying a cell or a cell group on the radio frame as the second synchronisation channel, phase rotation or circular shift in which one radio frame is one cycle is applied to the second synchronisation code. On the receiving side, the head timing of the radio frame is determined by obtaining the phase rotation angle or the amount of circular shift of the second synchronisation code. |
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Wireless transmitter, mobile station and method for wireless transmission of data units Wireless transmitter includes a plurality of encoding and modulating units for applying corresponding encoding and modulation algorithms to input data units. A discrete Fourier transform (DFT) precoder performs, using DFT, processing of output data of encoding and modulating units, and an inverse fast Fourier transform (IFFT) unit receives the DFT output signal from the DFT precoder, which is projected on different subcarriers in accordance with allocation of resources indicated by a base station, and also performs, through IFFT, processing of the output signal processed through DFT. The output data processing step generates output signals based on the output signal of the IFFT unit for wireless transmission thereof to a wireless receiver. In various versions of the invention, output data of the encoding and modulating units may be transmitted to an IFFT unit to generate output information processed through IFFT. |
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Base station (versions), transmission method (versions) and mobile communication system Base station is configured to communicate with a user terminal in a mobile communication system using a multiple input/multiple output (MIMO) scheme via precoding. The base station includes a control signal generating unit which is configured to generate a downlink control signal, which includes a flag indicator which indicates whether to use a precoding vector for downlink communication; and a transmitting unit which is configured to transmit a signal which includes a downlink control signal in a downlink, wherein the control signal generating unit is configured to perform channel coding using part of the information as a coding element. |
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Radio transmission device and radio transmission method Invention is intended to improve channel quality indicator (CQI) reception performance even when a delay is caused in a propagation path, a transmission timing error is caused, or residual interference is generated between cyclic shift values of different ZC sequences. For the second symbol and the sixth symbol of the ACK/NACK signal which are multiplexed by RS of CQI, (+, +) or (-, -) is applied to a partial sequence of the Walsh sequence. For RS of CQI transmitted from a mobile station, + is added as an RS phase of the second symbol and - is added as an RS phase of the sixth symbol. A base station (100) receives multiplexed signals of ACK/NACK signals and CQI signals transmitted from a plurality of mobile stations. An RS synthesis unit (119) performs synthesis by aligning the RS phase of CQI. |
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Receiving device, receiving method and receiving system Disclosed is a receiving device, having an obtaining unit configured to obtain a signal comprising a first signal and/or a second signal, having a different structure from each other except that the first and second signals have a preamble signal, and configured to obtain a preamble signal from the obtained signal; a detection unit configured to determine a correction value using the obtained signal for correcting the obtained signal; and a correction unit for correcting the obtained signal using the correction value determined by the detection unit if, based on the preamble signal obtained by the obtaining unit, it is determined that the obtained signal is a first signal. |
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Device for transmission and reception of signal and method for transmission and reception of signal Method is proposed to transmit a signal broadcasting frame, when: physical level path (PLP) data and preamble data is coded; coded PLP data is compared with the PLP data symbols, and coded preamble data - with symbols of the preamble data; selectively a heading is inserted before symbols of the PEP data; a data fragment is generated, including compared symbols of PLP data, besides, the data fragment is the first or second type of the data fragment, besides, the fist type does not carry the heading, and the second type of the data fragment carries a heading, which alams information of the PLP identifier (PLP ID) and parameters of modulation/coding for the second type of the data fragment; a signal frame is generated on the basis of the data frahment and symbols of the preamble data, it is modulated and transmitted by the method of compaction with orthogonal frequency division (OFDM), besides, symbols of the preamble data include alarm data of the level 1 (L1), including the specified information PLP ID, and symbols of the preamble data include parameters of modulation/coding of the signal for the first type of the data fragment. |
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Disclosed is a method and an apparatus which enable to conceal protected information in spectrally clocked sets of N multi-protocol data streams. Owing to introduction of decision feedback at the physical layer and enabling adaptation of transmission rate to the quality of the steganographic transmission channel, the reliability of receiving secure information considerably increases. |
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Wireless communication base station device and method of determining division number Determination unit (117) selects the number of divisions in the frequency domain of a signal transmitted from wireless communication terminal device. In this case the determination unit (117) increases the number of divisions in the frequency domain of the signal transmitted from the wireless communication terminal device as the number of pilot blocks included in the transmitted signal increases. Furthermore, a scheduling unit (118) schedules allocation of frequency resources of the divided transmitted signal according to the number of divisions determined by the determination unit (117). |
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Allocation of preamble sequences Set of specific sequences consisting of a set of root sequences and cyclic shifts thereof is searched, wherein it is started from a root sequence number indicating a root sequence of ordered root sequences, available cyclic shifts of the root sequence are included, and it is continued with a next root sequence if necessary for filling the set, interpreting the ordered root sequences in a cyclic manner. |
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Receiving apparatus, method and system Receiving apparatus includes: a spectrum inversion detecting unit configured to detect the presence or absence of spectrum inversion in a received DVB-T2 (digital terrestrial television - 2) signal using a P1 signal, making up the received signal; a spectrum inversion unit configured to process spectrum inversion for the received signal, if spectrum inversion is detected by at least the spectrum inversion detecting unit; and a demodulation unit configured to demodulate the received signal, for which spectrum inversion processing was performed, if spectrum inversion was detected by the spectrum inversion detecting unit; the demodulation unit further demodulates the received signal, for which spectrum inversion processing was not performed, if no spectrum inversion was detected by the spectrum inversion detecting unit. |
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Transmitter with code division of channels with structural security of transmitted signals Transmitter with code division of channels, known from patent No2287904, further includes a frequency divider, a nonlinear masking sequence generator, a nonlinear orthogonal code generator, and each channel circuit includes an internal encoder and a channel signal spectrum generator and corresponding connections thereof in order to form a novel signal-code structure and implementing secure synchronisation in a communication system, which significantly increases structural security of transmitted signals. |
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Radio transmission device and radio transmission method In the device and the method, BS and MS share a table correlating a basic TF as a combination of parameters such as TB size used for transmitting only user data, an allocation RB quantity, a modulation method and an encoding ratio, with a derived TF having user data of different TB size by combining L1/L2 control information. Even when multiplexing L1/L2 control information, the index corresponding to the basic TF is reported from BS to MS. |
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Mobile communication system includes three types of cells, including, in addition to an MBMS-dedicated cell, a unicast cell in which a mobile terminal can transmit and receive individual communication data, and a mixed unicast/MBMS cell which can provide both the unicast cell service and the MBMS-dedicated cell service. While receiving broadcast type data transmitted from the MBMS-dedicated cell, a mobile terminal performs an MBMS reception state report through a unicast cell or a mixed unicast/MBMS cell for reporting information to identify the MBMS-dedicated cell which is transmitting broadcast type data, which are received by a mobile terminal, and the communication system transmits a paging signal to the mobile terminal currently receiving broadcast type data transmitted from the MBMS-dedicated cell, based on a tracking area in which the mobile terminal is tracked, wherein the tracking area is defined based on the transmitted information. |
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Scheduling request transmission supporting high doppler shift Block spreading generating partial orthogality is applied for the uplink control channel for E-UTRA. Maximising multiplexing capacity leads to numerology causing odd-length sequences which do not have the favourable property of even-length sequences. In one example, the spreading factor of block spreading is changed to an even number, e.g., from 7 to 6. This enables usage of the partial orthogonality properties of constant-amplitude zero auto-correlation (CAZAC) sequences and as a result inter-code interference in the case of high Doppler shift is reduced. |
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Multiplexer and multiplexing method Described is a multiplexer and a multiplexing method, wherein the method includes adaptively identifying and buffering an incoming code stream; according to the type of the incoming code stream, extracting multiplexing sub-frames in the incoming multiplexing frame from the buffered incoming code stream or constructing the multiplexing sub-frames based on incoming audio/video data; according to service management configuration information, performing a service allocation on the multiplexing sub-frames, allocating the multiplexing sub-frames to corresponding multiplexing frames and storing them in a given buffer; and obtaining the multiplexing sub-frames from said given buffer, constructing the multiplexing frame according to multiplexing configuration information and converting the generated multiplexing frame to a multiplexing code stream for outputting. |
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Device to transmit and receive signal and method to transmit and receive signal Broadcasting signal is transmitted, which contains data for a service and preamble data, at the same time preamble data bits are represented into preamble data symbols, and data bits into data symbols, at least one data slice is developed on the basis of data symbols, a signal frame is created on the basis of preamble data symbols and the data slice, a signal frame is modulated with the help of a multiplexing method with orthogonal frequency division (OFDM), and the modulated signal frame is sent, besides, data symbols of the preamble are divided into at least one unit of the level 1 (L1), besides, the pass band of the unit L1 corresponds to the number of active subcarriers assigned for one channel, and units L1 are repeated in a frequency area along the pass band. |
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User terminal and method for use thereof in wireless communication system Method of demodulating a received signal involves performing complex multiplication of the received signal by a complex pseudonoise code to obtain a complex pseudonoise compressed signal, demultiplexing complex control data from the complex pseudonoise compressed signal, and demodulating a first channel from the complex pseudonoise compressed signal according to the complex control data and a first demodulating code. |
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Wireless communication apparatus and response signal spreading method Invention discloses, in particular, a mobile station in which a spreading section (214) first spreads the response signal in a ZAC sequence established by a control unit (209). Further, the spreading section (217) again spreads the response signal in a code spreading sequence on blocks established by the control unit (209). The control unit (209) controls the cyclic shift value of the ZAC sequence used for primary spreading in the spreading section (214), and the code spreading sequence on blocks used for secondary spreading in the spreading section (217), according to the established hopping pattern. The hopping pattern, established by the control unit (209), consists of two hierarchical levels. The hopping pattern for each LB, different for each cell, is determined in the first hierarchical level in order to randomise interference between cells. The hopping pattern, different for each mobile station, is determined in the second hierarchical level in order to randomise interference within cells. |
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Base station, information transmission method and mobile communication system Invention discloses a base station which includes a mapping module which is able to map a control channel to a predetermined number of OFDM symbols, starting with the beginning of each subframe, and map a data channel to OFDM symbols following the OFDM symbols to which the control channel was mapped; and a transmitting module which is able to transmit the control channel and the data channel mapped by the mapping module. In the control channel mapped by the mapping module, a plurality of control resource blocks are multiplexed, and each control resource block is mapped to all OFDM symbols to which the control channel was mapped. In order to transmit the control channel to certain user devices in a cell, a fixed transmission format is employed, and in order to transmit the control channel to other user devices in the cell, different transmission formats are employed. |
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System for synchronising clock pulses System for synchronising clock pulses consists of one or more clock generators located on the side of a high a high-frequency module, configuration of which involves generation of a synchronous signal in accordance with a signal from an external clock pulse generator, and sending the synchronous signal to a clock distributor, and a clock distributor located on the side of a base band module, and tuned so as to generate synchronous pulses in accordance with the synchronous signal from one or more clock generators, adjust synchronous pulses in accordance with the delay on the communication line between the clock generator, which outputs a synchronous signal, and the clock distributor, and send the adjusted synchronous pulses to the high-frequency module and the base band module to carry out synchronisation between the high-frequency module and the base band module. |
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Wireless communication device and subcarrier allocation method Method for transmission by a base station includes transmitting first control information, indicating whether to allocate a plurality of subcarriers lying continuously on a frequency axis or allocate a plurality of subcarriers lying discretely with a fixed interval on a frequency axis; transmitting data using said plurality of subcarriers; transmitting second control information, indicating a plurality of subcarriers lying continuously on a frequency axis when the base station transmits first control information, indicating allocation of a plurality of subcarriers lying continuously on a frequency axis. |
Another patent 2513947.