Patent application number | Description | Published |
20100023830 | LINK ADAPTATION DEPENDENT CONTROL SIGNALING - The invention relates to a method and apparatus for providing an improved scheme for encoding control information for transmitting user data. Further the method and apparatus may allow for reducing the control signaling overhead. These advantages may be achieved by interpreting information on at least one link adaptation parameter for transmitting the user data to determine the at least one link adaptation parameter for transmitting the user data, wherein the at least one link adaptation parameter for transmitting the user data is comprised in control signaling. According to the invention the interpretation of the information depends on at least one link adaptation parameter employed for transmitting the control signaling. | 01-28-2010 |
20100061345 | CONFIGURATION OF CONTROL CHANNELS IN A MOBILE COMMUNICATION SYSTEM - The invention relates to a method, apparatus and system for configuring control channels in a mobile communication network and a mobile station. In order to suggest another improved scheme for configuring control channels, in particular control channels related to the transmission of user data the invention suggests aligning the size of the control channel information of different formats to an equal number of coded control channel information bits and/or modulation symbols for each control channel. The control channels may comprise scheduling related control information. According to another aspect of the invention, a more flexible solution is proposed that may allow for taking different geometries of mobile stations within a cell into account. Similar to the aspect above, the size of the control channel information is aligned by means of modulation and/or coding, however the control channel information is aligned to one out of a set of numbers of coded control channel information bits and/or modulation symbols for each control channel. | 03-11-2010 |
20100146355 | Retransmission Method, Communication System, and Transmission Device - Disclosed are a retransmission method and a communication system which can realize a preferable trade-off between the feedback information amount and the error ratio characteristic. In the communication system, an encoding unit ( | 06-10-2010 |
20100165926 | WIRELESS COMMUNICATION BASE STATION APPARATUS AND WIRELESS COMMUNICATION METHOD IN MULTICARRIER COMMUNICATION - Provided is a wireless communication apparatus by which reduction of a diversity gain can be suppressed at minimum in the case of employing a repetition technology in multicarrier communication. In the wireless communication apparatus ( | 07-01-2010 |
20100192037 | RADIO COMMUNICATION APPARATUS AND REDUNDANCY VERSION TRANSMISSION CONTROL METHOD - Optimal error rate performance can always be obtained and the number of retransmissions can be minimized in IR-type HARQ using an LDPC code as an error correction code. An LDPC encoding section | 07-29-2010 |
20100199157 | WIRELESS COMMUNICATION DEVICE AND CIRCULAR BUFFER CONTROL METHOD - There is provided a wireless communication device capable of improving a decoding performance by using an optimal selection criterion for a start address and a read direction in a circular buffer. An interlacer ( | 08-05-2010 |
20100220806 | RADIO TRANSMITTING APPARATUS, RADIO RECEIVING APPARATUS AND WIRELESS COMMUNICATION METHOD - A radio transmitting apparatus, a radio receiving apparatus and a wireless communication method wherein the channel estimation precision can be improved without increasing the number of pilot signals when two different time-frequency multiplexed physical channel structures are used in an OFDM wireless communication system. A multiplexing part ( | 09-02-2010 |
20110098004 | WIRELESS COMMUNICATION DEVICE AND QUANTIZATION METHOD - Provided is a wireless communication device which can improve the notification accuracy of the channel state information (CSI) without straining the feedback circuit. In this device, a channel estimator ( | 04-28-2011 |
20110289375 | METHOD FOR CONSTRUCTING AN LDPC CODE, TRANSMITTER, AND RECEIVER - Disclosed are: a method for constructing a low-density parity-check (LDPC) code for use in next-generation mobile communication and deep-space communication by using a cyclic distribution; a transmitter; a receiver; and a system. The method includes a block cycle determination step in which the distribution of a block cycle constructed from non-zero cyclic shift element values is determined for the basic matrix of the LDPC code, a priority determination step in which the priorities of the non-zero cyclic shift element values included in each block cycle are determined on the basis of the determined block cycle distribution, and a calculation step in which the greatest common divisor is determined for the permutation elements of all magnitudes in the check matrix of the LDPC code, and the divisor is factored. According to this method, short cycles will not be included in any actual check matrix of an LDPC code constructed by using all different permutation elements. | 11-24-2011 |
20130090069 | RECEIVING APPARATUS AND RADIO COMMUNICATION METHOD - A radio communication device capable of lightening the influence of a frequency selective fading in the wide-band transmission of a single carrier thereby to prevent deterioration of error rate characteristics. In this device, an FFT unit subjects a modulated signal inputted from a modulation unit to a Fourier transformation. A pilot insertion unit inserts a pilot symbol into a plurality of individual frequency components of the modulated signal. Weight multiplication units multiply the individual frequency components and the pilot symbols inserted into the individual frequency components, by weight coefficients set at a weight coefficient setting unit. IFFT units subject the frequency components to an inverse Fourier transformation, thereby to convert the frequency components into time domains. | 04-11-2013 |
20130223394 | COMMUNICATION DEVICE AND SRS TRANSMISSION CONTROL METHOD - Provided are a communication device and an SRS transmission method capable of reducing the possibility of a difference in recognition between the presence or absence of an SRS transmission between a base station and a terminal or of an SRS resource so as to prevent degradation of system throughput. At a terminal ( | 08-29-2013 |
20130250901 | TERMINAL DEVICE, BASE STATION DEVICE, TRANSMITTING METHOD AND RECEIVING METHOD - The present invention pertains to a terminal device, which, when ARQ is used for communication that uses an uplink unit band and a plurality of downlink unit bands associated with the uplink unit band, and when a transmission mode that supports up to 2 TB in a PCell is set in the terminal, is capable of reducing the amount of signaling from a base station while eliminating a lack of PUCCH resources when semi-permanent scheduling (SPS) is used in the PCell. A control unit ( | 09-26-2013 |
20130258894 | TRANSMITTER, RECEIVER, TRANSMISSION METHOD, AND RECEPTION METHOD - Provided is a transmitter which improves the flexibility of SRS resource allocation without increasing the amount of signaling for notifying the cyclic shift amount. In the transmitter, with regard to each basic shift amount candidate group having a basic shift amount from 0 to N−1, a transmission control unit ( | 10-03-2013 |
20130272257 | WIRELESS COMNMUNICATION TERMINAL AND POWER CONTROL METHOD - Provided is a wireless communication terminal which, when SRSs are simultaneously transmitted between CCs and between antenna ports, avoids increasing the effect of bit rounding errors of D/A converters when the number of antenna ports set for SRS transmission differs between CCs. This device comprises a transmission power calculation unit ( | 10-17-2013 |
20130294376 | TERMINAL APPARATUS AND METHOD FOR TRANSMITTING A RESPONSE SIGNAL AT A TERMINAL - A radio communication mobile station device reduces the number of blind decoding processes at a mobile station without increasing overhead by report information. The device includes a judgment unit which judges a particular PUCCH to which a response signal corresponding to the downstream line data is to be allocated among a plurality of PUCCH, according to a CCE occupied by PDCCH allocated to a particular search space corresponding to a CCE aggregation size or the PDCCH to which allocation information destined to the local station is allocated among search spaces changing in accordance with the CFI value; and a control unit which controls a cyclic shift amount of a ZAC sequence of the response signal and a block-wise spread code sequence according to a correspondence between CCE occupied by PDCCH allocated to a particular search space and a particular PUCCH resource, the correspondence changing in accordance with the CFI value. | 11-07-2013 |
20130301585 | INTEGRATED CIRCUIT FOR SPREADING RESPONSE SIGNAL - A radio communication apparatus receives control information on one or more control channel elements (CCEs) with consecutive CCE number(s). The radio communication apparatus first-spreads a response signal with a sequence defined by a cyclic shift value that is determined among a plurality of cyclic shift values from an index of physical uplink control channel (PUCCH), which is associated with a first CCE number of the one or more CCEs, and second-spreads the first-spread response signal with an orthogonal sequence that is determined among a plurality of orthogonal sequences from the index. One of cyclic shift values used for an orthogonal sequence is determined from an index of the | 11-14-2013 |
20130301594 | INTEGRATED CIRCUIT FOR CONTROLLING RADIO TRANSMISSION OF ACK/NACK INFORMATION - A radio receiver apparatus that can effectively utilize GI to improve the reception quality. In this apparatus, a data extracting part extracts a data portion of a direct wave from a signal subjected to a radio reception process by a received RF part. A GI extracting part extracts, from the signal subjected to the radio reception process by the received RF part, GI having a length determined by an extracted GI length deciding part. The extracted GI is adjusted by a data position adjusting part such that its rear end coincides with the read end of the extracted data portion. A combining part combines the extracted data portion with the GI the data position of which has been adjusted. The combined signal is then supplied to a frequency axis equalizing part, which equalizes the signal distortions of the combined signal on the frequency axis. | 11-14-2013 |
20130301623 | INTEGRATED CIRCUIT FOR CQI REPORTING IN WIRELESS COMMUNICATION - Provided is a wireless communication mobile station device by which a throughput can be improved in multicarrier communication. In the device, a group control section ( | 11-14-2013 |
20130315190 | TRANSMISSION DEVICE, RECEPTION DEVICE, TRANSMISSION METHOD, AND RECEPTION METHOD - A transmission device capable of flexibly setting the transmission mode, even in cases when the candidates for the resource domain to be used to transmit a control signal to a terminal include both a first downlink resource domain that can be used as either a control channel or a data channel and a second downlink resource domain that can be used as a control channel, wherein a transmission mode setting unit ( | 11-28-2013 |
20130315199 | INTEGRATED CIRCUIT FOR CHANNEL ARRANGEMENT AND RADIO COMMUNICATION - Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit ( | 11-28-2013 |
20130322340 | BASE STATION APPARATUS AND RADIO COMMUNICATION METHOD FOR RECEIVING INFORMATION INDICATIVE OF CHANNEL QUALITY FROM MOBILE STATION - A wireless communication method and apparatus are provided for selecting quality-reporting sub-carrier bands based on sub-carrier band quantity information received from a base station. The method includes generally four steps. First, from a base station, information indicating quantity of sub-carrier bands is acquired. Second, channel quality of each of a plurality of sub-carrier bands within a communication band is measured from a received signal. Third, sub-carrier bands are selected from the plurality of sub-carrier bands, wherein quantity of the selected sub-carrier bands corresponds to the quantity of sub-carrier bands indicated by the acquired information. Fourth, information indicating channel quality of the selected sub-carrier bands is reported to the base station. | 12-05-2013 |
20130329543 | TRANSMISSION DEVICE, RECEIVING DEVICE, TRANSMISSION METHOD, AND RECEIVING METHOD - A transmission device includes reference signal generator ( | 12-12-2013 |
20130329684 | TRANSMISSION DEVICE, RECEIVING DEVICE, TRANSMISSION METHOD, AND RECEIVING METHOD - In a base station ( | 12-12-2013 |
20130336201 | RELAY STATION, BASE STATION, TRANSMISSION METHOD AND RECEPTION METHOD - A relay station ( | 12-19-2013 |
20130336254 | RADIO TRANSMISSION DEVICE AND RADIO TRANSMISSION METHOD - Provided are a radio transmission device and a radio transmission method capable of improving downlink and uplink throughput even when performing dynamic symbol allocation. 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, Index corresponding to the basic TF is reported from BS to MS. | 12-19-2013 |
20140003326 | RELAY STATION, BASE STATION, TRANSMISSION METHOD, AND RECEPTION METHOD | 01-02-2014 |
20140023021 | WIRELESS COMMUNICATION BASE STATION DEVICE, WIRELESS COMMUNICATION TERMINAL, AND CONTROL INFORMATION CREATION METHOD - Disclosed is a wireless communication base station device capable of reducing the power consumption of a terminal when broadband transmission is performed with only an uplink. With this device, a setting unit sets mutually different terminal IDs per a plurality of uplink unit bands for a terminal that communicates using a plurality of uplink unit bands and prescribed downlink unit bands which are fewer in number than the uplink unit bands; a control unit that respectively allocates resource allocation information per a plurality of uplink unit bands to a PDCCH arranged in a prescribed downlink unit band; and a PDCCH creation unit that creates a PDCCH signal by respectively masking the resource allocation information per a plurality of uplink unit bands with the terminal ID that has been set per a plurality of uplink unit bands. | 01-23-2014 |
20140036854 | WIRELESS COMMUNICATION METHOD OF CONFIGURING MEASUREMENT RESOURCE, AND WIRELESS COMMUNICATION DEVICE THEREFOR - There are provided a wireless communication method of configuring a measurement resource and a wireless communication device therefor. The method comprises determining a measurement resource to be disregarded when the number of measurement resources configured in one subframe exceeds the maximum number of measurement resources that a user equipment is able to measure in one subframe, wherein the measurement resource with lower priority is determined to be disregarded, and the measurement resource is not disregarded A times within the duration of N subframes, where A is an integer larger than 1, N corresponds to one plus B*periodicity of the measurement resource, and B is an integer equal to or larger than 1. | 02-06-2014 |
20140050182 | TERMINAL APPARATUS, BASE STATION APPARATUS, TRANSMISSION METHOD AND RECEPTION METHOD - Provided is a terminal apparatus in which, a transmission control unit ( | 02-20-2014 |
20140056285 | COMMUNICATION TERMINAL DEVICE, BASE STATION DEVICE AND RADIO COMMUNICATION METHOD - A communication terminal eliminates collision of access request signals simultaneously transmitted from communication terminals in a local cell, prevents generation of interference signals in another cell adjacent to the local cell, and improves local cell throughput. A base station controls transmission power of the access permission signal so as to prevent generation of an interference signal in another cell adjacent to the local cell. A use sub-channel selection unit has a correspondence table between the reception quality of the pilot signals divided into classes and the sub-channel allocated to the classes. According to the table, the use sub-channel selection unit selects a sub-channel group of RACH correlated to the measurement result of the reception quality of the pilot signals reported from the reception quality measurement unit. One sub-channel to be used for transmission of the access request signal is selected at random from the sub-channel group selected. | 02-27-2014 |
20140064233 | TERMINAL APPARATUS AND TRANSMISSION METHOD - The purpose of the present invention is to inhibit an increase in the amount of A/N resources, without changing the timing at which the error detection result of an SCell is notified when UL-DL configurations to be configured for each of the unit bands are different, from the timing at which the error detection result is notified when just a single unit band is configured. A control unit ( | 03-06-2014 |
20140071911 | TRANSMITTING DEVICE, RECEIVING DEVICE, TRANSMITTING METHOD, AND RECEIVING METHOD - In a transmitting device, each of the plurality of mapping candidates that make up the search space is configured from the same number of control channel elements as an aggregation level value, the control channel elements are obtained by dividing each physical resource block into a predetermined number, and the quantity of resource elements contained in each of the predetermined number of control channel elements in each physical resource block adopts at least two types of values. A search space setting unit ( | 03-13-2014 |
20140071936 | METHOD OF SCRAMBLING SIGNALS, TRANSMISSION POINT DEVICE AND USER EQUIPMENT USING THE METHOD - Method of scrambling signals, transmission point device and user equipment using the method are provided. The method is for scrambling signals assigned on predetermined radio resources of at least one layer of resource blocks with the same time and frequency resources, and comprises the steps of: sending an ID table to a user equipment through higher layer signaling, the ID table being a subset of the whole ID space and containing available IDs for the user equipment; notifying the user equipment an ID in the ID table to be used through physical layer signaling or UE specific higher layer signaling; generating a random seed based on the notified ID; initializing a scrambling sequence by the random seed; and scrambling the signals with the initialized scrambling sequence. The method of the disclosure, by combining physical layer signaling and higher layer signaling, may notify the used group ID and the blind detection space to a UE, the blind detection for the UE is enabled and the signaling overhead is reduced. | 03-13-2014 |
20140098764 | BASE STATION AND METHOD FOR RECEIVING CONTROL INFORMATION - Disclosed are an encoding ratio setting method and a radio communication device which can avoid encoding of control information at an encoding ratio lower than necessary and suppress lowering of the transmission efficiency of the control information. In the device, an encoding ratio setting unit ( | 04-10-2014 |
20140098775 | TRANSMISSION DEVICE, RECEPTION DEVICE, TRANSMISSION METHOD, AND RECEPTION METHOD - In a base station ( | 04-10-2014 |
20140098795 | TERMINAL DEVICE, BASE STATION DEVICE, AND COMMUNICATION METHOD - A terminal device is equipped with: a sequence determination unit that determines a sequence number with a different pattern than the assignment pattern for the sequence number assigned to the cell in which the host device resides; a reference signal generation unit that generates a reference signal for a sequence group corresponding to the sequence number that has been determined; and a wireless transmission unit that transmits the reference signal that has been generated to a base station. The sequence determination unit employs a configuration whereby, with the sequence number assigned to the cell in which the host device resides as a cell-specific sequence number, a dynamic offset which periodically changes over time and for which the same value is not consecutive is added to the cell-specific sequence number, thereby determining a sequence number which never overlaps with the cell-specific sequence number. | 04-10-2014 |
20140105110 | TERMINAL DEVICE, BASE STATION DEVICE, TRANSMISSION METHOD AND TRANSMIT POWER SETTING METHOD - The objective of the present invention is to provide a terminal device capable of suppressing delay in switching between transmit/receive points, and of reliably switching between the transmit/receive points. In the device, a reception processing unit ( | 04-17-2014 |
20140119362 | METHOD OF REPORTING PHASE OFFSETS, USER EQUIPMENT AND TRANSMISSION POINT DEVICE USING THE METHOD - A transmission point device, user equipment, and method of reporting phase offsets between signals received from a serving cell and neighbor cells in a communication system are disclosed. The method comprises steps of: quantizing the phase offsets using a predetermined number of bits; utilizing another bit to indicate constellation of the phase offsets; reporting the quantized phase offsets and the constellation to transmission point. The present disclosure may improve the signal combining gain from multiple transmission points with minimum overhead increasing. | 05-01-2014 |
20140126383 | METHOD OF CSI REPORTING, USER EQUIPMENT AND ENODE B - Provided is reporting one or more long term CSI components to an eNode B, wherein at least one long term CSI component being reported with multiple values; and reporting a transmission scheme assumption indicator (TSAI) together with a set of short term CSI components to the eNode B, wherein the TSAI indicating the eNode B of a value of the multiple values of the at least one long term CSI component to be currently used and of the set of short term CSI components being conditioned on the value indicated by the TSAI, wherein the short term CSI components being reported more frequently. | 05-08-2014 |
20140126479 | TERMINAL APPARATUS AND METHOD FOR TRANSMITTING A REFERENCE SIGNAL - Provided are a radio communication terminal apparatus and a radio transmission method by which intersymbol interference of DM-RS of a CoMP terminal and a Non-CoMP terminal can be reduced. A CoMP set setting unit ( | 05-08-2014 |
20140126506 | TRANSMISSION DEVICE, RECEIVING DEVICE, TRANSMISSION METHOD, AND RECEIVING METHOD - Disclosed is a transmission apparatus capable of properly performing cross carrier scheduling in ePDCCHs. In this apparatus, when communication is performed using a plurality of component carriers (CCs), configuration section | 05-08-2014 |
20140126521 | BASE STATION APPARATUS AND METHOD FOR CONTROLLING CHANNEL QUALITY INDICATOR TRANSMISSION - Wireless communication apparatus capable of increasing transmission efficiency by selecting data for scheduling according to data type, and capable of achieving low power consumption and high-speed signal processing is disclosed. With this apparatus, a control section allocates transmission data sequence 1 to subcarriers of superior quality by carrying out scheduling for the transmission data sequence 1 based on CQI sent from communication terminal apparatus and required transmission rate information for each communication terminal apparatus, and allocates transmission data sequence 2 to preassigned subcarriers. Channel allocation section allocates data for transmission data sequence 1 to subcarriers designated by control section. Channel allocation section allocates data for transmission data sequence 2 to subcarriers designated by control section. | 05-08-2014 |
20140126545 | HANDOVER CONTROL METHOD, WIRELESS COMMUNICATION TERMINAL, AND WIRELESS COMMUNICATION DEVICE - Under a handover control method, a wireless communication terminal receives a conditional handover command that is transmitted from a wireless communication device which provides an own cell connected to the wireless communication terminal and that gives a command to start handover to an adjacent cell when a predetermined condition is satisfied; determines whether or not the predetermined condition is satisfied; and starts handover to the adjacent cell indicated by the conditional handover command when the predetermined condition is satisfied. | 05-08-2014 |
20140133420 | TERMINAL DEVICE, BASE STATION DEVICE, AND TRANSMISSION/RECEPTION METHOD - In the present invention, even if different UL-DL configurations are set for a plurality of unit bands, notification timing of error detection results for SCell is not dispersed complicatedly, and the processing relating to the error detection results can be simplified. At the reference notification timing of a response signal with respect to downlink data of a second unit band, if a sub-frame of the second unit band is an uplink communication sub-frame and a sub-frame of a first unit band is a downlink communication sub-frame, a control unit ( | 05-15-2014 |
20140146733 | BASE STATION AND RELATED RADIO COMMUNICATION METHOD - Provided are a terminal device and a retransmission control method that make it possible to minimize increases in overhead in an uplink control channel (PUCCH), even if channel selection is used as the method to transmit response signals during carrier-aggregation communication using a plurality of downlink unit bands. On the basis of the generation status of uplink data and error-detection results obtained by a CRC unit, a control unit in the provided terminal uses response signal transmission rules to control the transmission of response signals or uplink control signals that indicate the generation of uplink data. If an uplink control signal and a response signal are generated simultaneously within the same transmission time unit, the control unit changes the resources allocated to the response signal and/or the phase point of the response signal in accordance with the number and position of ACKs within the error-detection result pattern. | 05-29-2014 |
20140146770 | WIRELESS TRANSMISSION APPARATUS, WIRELESS RECEPTION APPARATUS, AND WIRELESS COMMUNICATION METHOD - To improve the operation and the effect of ICC by appropriately limiting resources of a reference signal. An SRS generating unit ( | 05-29-2014 |
20140146771 | INTEGRATED CIRCUIT FOR CONTROL CHANNEL DECODING - A wireless communication base station apparatus that allows the number of times of blind decodings at a mobile station to be reduced without increasing the overhead caused by notifying information. In this apparatus, a CCE allocation part ( | 05-29-2014 |
20140153669 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A wireless communication apparatus and a wireless communication method wherein even when the permissible delay amount of data is small, the permissible delay thereof can be satisfied. A data type determining part determines whether the delay of transport data or control information should be allowed or not. A pilot signal insertion control part decides, based on pilot insertion interval information and allowable delay information, that a pilot signal is placed adjacently to data that is not allowed to delay. A multiplexing part multiplexes encoded and modulated transport data with the pilot signal generated by a pilot signal generating part in such a manner that realizes the placement decided by the pilot signal insertion control part. | 06-05-2014 |
20140161093 | TERMINAL, BASE STATION, TRANSMISSION METHOD AND RECEPTION METHOD - The present invention is a terminal capable of suppressing increase in transmit power required for transmitting a CSI report at a terminal while widely securing candidates for motion control. A reception processing unit ( | 06-12-2014 |
20140164864 | WIRELESS COMMUNICATIONS TERMINAL, BASE STATION DEVICE, AND RESOURCE ALLOCATION METHOD - The purpose of the present invention is to avoid ACK/NACK collision in a system in which E-PDCCH control information is transmitted, increase the utilization efficiency of ACK/NACK resources, and suppress unnecessary PUSCH band reduction. A wireless communications terminal having a configuration comprising: a reception unit that receives control signals including ACK/NACK indexes, via an expanded physical downlink control channel; a control unit that determines, on the basis of the ACK/NACK indexes, whether to use a dynamically allocated dynamic ACK/NACK resource or a specified resource specified beforehand, to send downlink data ACK/NACK signals; and a transmission unit that sends the ACK/NACK signals using the dynamic ACK/NACK resource or the specified resource, as determined. | 06-12-2014 |
20140169201 | WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION TERMINAL, REFERENCE SIGNAL TRANSMISSION CONTROL METHOD, AND REFERENCE SIGNAL PROCESSING METHOD - A wireless communication device transmitting a reference signal with which a wireless communication terminal measures reception power from a communication cell, in a resource of a data region, includes a control section that determines the resource of the data region in which a reference signal specific to the wireless communication terminal is placed, and a wireless transmission section that transmits the reference signal in the resource determined by the control section. Provided is a wireless communication device transmitting a reference signal by which a wireless communication terminal measures reception power from a communication cell. | 06-19-2014 |
20140169205 | RADIO COMMUNICATION TERMINAL AND RADIO COMMUNICATION METHOD - Provided is a radio communication terminal which is capable of measuring quality in communication with a handover destination with high accuracy. The radio communication terminal is capable of communicating with a base station or a relay node, and includes: a receiver which receives control information including information relating to measurement of measuring quality of a neighbor cell; an extractor which extracts information on a subframe where the measurement should be performed, which is a subframe where only transmission of a signal from the relay node connected to the base station is performed, from the information relating to the measurement; a measurement section which performs the measurement, on a subframe basis, based on the extracted information on the subframe where the measurement should be performed; and a transmitter which transmits a result of the measurement to the base station or the relay node. | 06-19-2014 |
20140169260 | TRANSMISSION DEVICE, PREAMBLE TRANSMISSION DEVICE AND TRANSMISSION METHOD - In order to provide a transmission device and transmission method with which a response signal for random access preamble transmitted from a preamble transmission device is efficiently transmitted, setting unit ( | 06-19-2014 |
20140170988 | WIRELESS COMMUNICATION APPARATUS AND WIRELESS COMMUNICATION METHOD - A wireless communication apparatus is capable of improving communication efficiency by reducing the amount of control information transmitted. A channel quality information extraction section extracts CQI's from a received signal. An allocation control section allocates subcarriers for every communication terminal apparatus and selects a modulation scheme in such a manner that required transmission rate is satisfied for each communication terminal apparatus based on required transmission rate information, etc. and CQI's for communication terminal apparatus of each user. A required subcarrier number determining section decides the number of subcarriers allocated to every communication terminal apparatus so as to satisfy the required transmission rate for each communication terminal apparatus. A required subcarrier number information generating section generates information for the number of subcarriers allocated to every communication terminal apparatus. A subcarrier allocation section allocates packet data to selected subcarriers. Modulating sections adaptively modulate packet data allocated to each subcarrier. | 06-19-2014 |
20140177601 | TERMINAL, TRANSMITTING DEVICE, RECEPTION QUALITY REPORTING METHOD AND RECEPTION METHOD - A terminal which is capable of selecting appropriate transmission points while reducing the overhead for channel state information (CSI) reporting is provided. A measuring unit ( | 06-26-2014 |
20140177624 | MOBILE STATION APPARATUS, RECEPTION METHOD AND INTEGRATED CIRCUIT - A base station apparatus is provided, which includes a generator configured to generate a synchronization signal and a transmitter configured to transmit the generated synchronization signal. The generator is configured to generate a synchronization signal to be mapped on a subcarrier included in one of a plurality of frequency resource candidates that are separated by an interval, which is a common multiple of a determined frequency spacing and a subcarrier spacing between contiguous subcarriers, wherein the subcarrier spacing does not have a value that is a divisor of the determined frequency spacing. | 06-26-2014 |
20140177650 | RADIO RECEIVER APPARATUS AND RADIO TRANSMITTER APPARATUS - A radio receiver apparatus that can effectively utilize GI to improve the reception quality. In this apparatus, a data extracting part extracts a data portion of a direct wave from a signal subjected to a radio reception process by a received RF part. A GI extracting part extracts, from the signal subjected to the radio reception process by the received RF part, GI having a length determined by an extracted GI length deciding part. The extracted GI is adjusted by a data position adjusting part such that its rear end coincides with the read end of the extracted data portion. A combining part combines the extracted data portion with the GI the data position of which has been adjusted. The combined signal is then supplied to a frequency axis equalizing part, which equalizes the signal distortions of the combined signal on the frequency axis. | 06-26-2014 |
20140185555 | RADIO TERMINAL, RADIO BASE STATION, CHANNEL SIGNAL FORMING METHOD, AND CHANNEL SIGNAL RECEIVING METHOD - A base station communicates with a terminal, for which an uplink component carrier and downlink component carriers are configured. The base station adjusts a payload size of control information, transmitted in a downlink control channel, based on a basic payload size, and maps the control information onto a search space in at least one of the downlink component carriers. The basic payload size of the control information mapped onto a search space in a primary downlink component carrier is based on a number of information bits obtained from a bandwidth of the primary downlink component carrier, and on a number of information bits obtained from a bandwidth of the uplink component carrier. The basic payload size of the control information mapped onto a search space in a non-primary downlink component carrier is based on a number of information bits obtained from a bandwidth of the non-primary downlink component carrier. | 07-03-2014 |
20140185562 | TERMINAL AND METHOD FOR RECEIVING CONTROL INFORMATION - A CCE+ number allocation method reduces the ACK/NACK (Acknowledgment/Negative Acknowledgment) collision probability in a mixed system containing an LTE (Long Term Evolution) system and an LTE+ (Long Term Evolution Advanced) system. A CCE (Control Channel Element)+ number is defined by selecting a number from CCE numbers of the CCE to contain PDCCH (Physical Downlink Control Channel) allocated in a resource element region constituting CCE+ where PDCCH+ is arranged. This can prevent overlapped selection of the CCE number and the CCE+ number even when the PDCCH and the PDCCH+ are simultaneously transmitted, thus making it possible to reduce the collision probability of ACK/NACK correlated to the CCE number and the CCE+ number. | 07-03-2014 |
20140204892 | TERMINAL DEVICE, AND BUFFER PARTITIONING METHOD - Disclosed is a terminal apparatus in which: a decoding section ( | 07-24-2014 |
20140204893 | COMMUNICATION DEVICE, AND RETRANSMISSION CONTROL METHOD - Provided is a wireless communication device. A PHICH reception unit ( | 07-24-2014 |
20140211715 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A wireless communication base station device, terminal device, and method have reduced signaling while maintaining high scheduling gain. A judgment unit pre-stores a correspondence between the number of code words and the number of clusters to reduce the maximum value for the number of clusters allocated to each terminal as the number of code words increases, and thus determines the maximum value for the number of clusters based on the number of code words acquired. Based on the number of code words for a transmission signal from a terminal, an estimated value for the reception quality, and the maximum value for the number of clusters that is output by the judgment unit, a scheduling unit schedules the allocation of the transmission signal transmitted by each terminal to a transmission band frequency (frequency resource) so as not to exceed the maximum value for the number of clusters. | 07-31-2014 |
20140211737 | TERMINAL, BASE STATION, AND COMMUNICATION METHOD - Provided is a terminal with which it is possible, in a heterogeneous cell network, to transmit a Periodic-Sounding Reference Signal (P-SRS) at a transmission bandwidth and power density necessary for carrying out both a process of selection of a transceiving participating base station and a process of frequency scheduling of a Packet Uplink Shared Channel (PUSCH). A terminal ( | 07-31-2014 |
20140211747 | WIRELESS COMMUNICATION TERMINAL, BASE STATION DEVICE, RESOURCE ALLOCATION METHOD - A radio communication terminal that increases the ACK/NACK resource utilization efficiency while preventing ACK/NACK collision, and that causes no unnecessary reduction of the PUSCH band in a system that transmits E-PDCCH control information. The radio communication terminal adopts a configuration including a receiving section that receives a control signal including an ACK/NACK index via an enhanced physical downlink control channel (E-PDCCH) transmitted using one configuration from among one or a plurality of configuration candidates, a control section that selects a resource to be used for an ACK/NACK signal of downlink data from among specified resources specified beforehand based on E-PDCCH configuration information used for transmission or reception of the E-PDCCH and the ACK/NACK index, and a transmitting section that transmits the ACK/NACK signal using the selected specified resource. | 07-31-2014 |
20140219232 | WIRELESS COMMUNICATION TERMINAL DEVICE, WIRELESS COMMUNICATION BASE STATION DEVICE AND WIRELESS COMMUNICATION METHOD - A radio terminal is provided that can provide a flexible transmission power control for an SRS without restrictions due to the transmission power control of a PUSCH, for the purpose of enabling use of an SRS for various purposes in a HetNet CoMP environment. The radio terminal receives a control signal including a transmission power control command (TPC command) to be applied to an aperiodic sounding reference signal (A-SRS), through a physical downlink control channel (PDCCH), updates a transmission power value of the A-SRS using the TPC command, and transmits the A-SRS using the updated transmission power value in accordance with a transmission request included in a control signal indicating assignment of a physical downlink data channel (PDSCH) or assignment of a physical uplink data channel (PUSCH). | 08-07-2014 |
20140233487 | INTEGRATED CIRCUIT FOR CHANNEL ARRANGEMENT AND RADIO COMMUNICATION - Provided is a radio communication base station device which can prevent lowering of use efficiency of a channel communication resource for performing a frequency diversity transmission when simultaneously performing a frequency scheduling transmission and the frequency diversity transmission in a multicarrier communication. In the device, a modulation unit ( | 08-21-2014 |
20140286260 | COMMUNICATION APPARATUS AND REFERENCE SIGNAL RECEIVING METHOD - Provided are a wireless communication apparatus and a reference signal generating method, wherein inter-cell interference is reduced inside and outside a CoMP set. A CoMP mode setting unit ( | 09-25-2014 |
20140293867 | RELAY STATION, BASE STATION, AND BAND FREQUENCY ALLOCATION METHOD - A relay station to which network sharing is applied, wherein it is possible to appropriately allocate between multiple operators a shared band frequency shared by the multiple operators, and to improve the frequency use efficiency. In a relay station ( | 10-02-2014 |
20140293934 | METHOD FOR SETTING SUBBANDS IN MULTICARRIER COMMUNICATION, AND RADIO COMMUNICATION MOBILE STATION APPARATUS - A wireless communication base station apparatus wherein when a frequency scheduling transmission and a frequency diversity transmission are performed in a multicarrier communication at the same time, the adaptive control of a channel for performing the frequency scheduling transmission can be prevented from being complicated. In this apparatus, a modulating part ( | 10-02-2014 |
20140293935 | WIRELESS COMMUNICATION BASE STATION EQUIPMENT, WIRELESS COMMUNICATION TERMINAL DEVICE AND SEARCH SPACE SETTING METHOD - Disclosed is wireless communication base station equipment in which CCE allocation can be flexibly performed without collision of ACK/NACK signals between a plurality of unit bands, even when wideband transmission is performed exclusively on a downlink circuit. In this equipment, an allocation unit ( | 10-02-2014 |
20140307536 | TERMINAL AND COMMUNICATION METHOD THEREOF - A terminal and a communication method thereof whereby, even in a case of employing the asymmetric carrier aggregation system and further employing the MIMO transmission method for upstream channels, the error characteristic of control information can be prevented from being degraded. In the terminal, a transport signal forming unit forms transport signals by arranging, based on an arrangement rule, ACK/NACK and CQI in a plurality of layers. According to the arrangement rule, an error detection result is arranged, on a priority basis, in a layer that is different from a layer in which the channel quality information is arranged. In this way, the puncturing of CQI using ACK/NACK can be minimized, with the result that the error characteristic of control information can be prevented from being degraded. | 10-16-2014 |
20140328282 | BASE STATION APPARATUS, COMMUNICATION METHOD, TERMINAL APPARATUS AND INTEGRATED CIRCUIT - Provided are a radio terminal device, a radio base station device, and a channel signal forming method which can prevent quality degradation of the downlink source allocation information by reducing the frequency of the zero information addition process to the downlink resource allocation information when executing communication using an uplink unit band and a plurality of downlink unit bands correlated to the uplink unit band. A base station can execute communication using the uplink unit band and a plurality of downlink unit bands correlated to the uplink unit band. The base station includes: a PDCCH generation unit which includes the uplink allocation information relating to the uplink unit band only in some of the channel signals formed for each of the downlink unit bands; and a padding unit which adds zero information to the downlink allocation information only in the selected some channel signals having the bandwidth of the corresponding downlink unit band smaller than that of the uplink unit band until the downlink allocation information size becomes equal to the uplink allocation information size. | 11-06-2014 |
20140341154 | TERMINAL APPARATUS AND COMMUNICATION METHOD THEREOF - This invention is directed to a terminal apparatus capable of preventing the degradation of reception quality of control information even in a case of employing SU-MIMO transmission system. A terminal ( | 11-20-2014 |
20140348119 | TERMINAL AND METHOD FOR TRANSMITTING A TRANSMISSION SIGNAL - Disclosed are a wireless communication base station device and a division number determination method that improve the frequency diversity effect while maintaining channel estimation accuracy regardless of the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. A determination unit determines the number of divisions in the frequency domain of a transmission signal from a wireless communication terminal device. Here, the determination unit increases the number of divisions in the frequency domain of the transmission signal from the wireless communication terminal device as the number of pilot blocks included in the transmission signal increases. In addition, a scheduling unit schedules allocation to the frequency resources of the divided transmission signal according to the number of divisions determined by the determination unit. | 11-27-2014 |
20140355561 | RECEIVING APPARATUS, RECEIVING METHOD AND INTEGRATED CIRCUIT - A radio communication apparatus is disclosed that enables the influence of the feedback information on the channel capacity to be kept to the minimum without reducing the transmission efficiency of information by transmission of pilot symbol. In the apparatus, a delay dispersion measuring section generates a delay profile using the received signal, and measures delay dispersion indicative of dispersion of delayed versions. A moving speed estimating section estimates moving speed of a mobile station apparatus that transmits a pilot symbol based on the variation in reception power of the pilot symbol. An other-cell interference measuring section measures other-cell interference caused by signals transmitted in cells except the cell to which the apparatus belongs. Corresponding to the delay dispersion, moving speed and other-cell interference, a pilot pattern information generating section selects a pilot pattern such that placement of pilot symbol is optimal in a frame, and generates the pilot pattern information. | 12-04-2014 |
20140355710 | TRANSMISSION DEVICE AND TRANSMISSION METHOD - Provided is a transmission device with which, by orthogonalizing different transmission bandwidth DM-RSs, CoMP performance is improved, and it is possible to increase MU-MIMO communication multiplexing. In the device, a sequence generator unit ( | 12-04-2014 |
20140369307 | INTEGRATED CIRCUIT FOR SPREADING RESPONSE SIGNAL - A radio communication apparatus receives control information on one or more control channel elements (CCEs) with consecutive CCE number(s). The radio communication apparatus first-spreads a response signal with a sequence defined by a cyclic shift value that is determined among a plurality of cyclic shift values from an index of physical uplink control channel (PUCCH), which is associated with a first CCE number of the one or more CCEs, and second-spreads the first-spread response signal with an orthogonal sequence that is determined among a plurality of orthogonal sequences from the index. One of cyclic shift values used for an orthogonal sequence is determined from an index of the PUCCH, which is associated with an odd CCE number, and another one of the cyclic shift values used for the same orthogonal sequence is determined from an index of the PUCCH, which is associated with an even CCE number. | 12-18-2014 |
20140369391 | INTEGRATED CIRCUIT FOR SPREADING RESPONSE SIGNAL - A radio communication apparatus receives control information on one or more control channel elements (CCEs) with consecutive CCE number(s). The radio communication apparatus first-spreads a response signal with a sequence defined by a cyclic shift value that is determined among a plurality of cyclic shift values from an index of physical uplink control channel (PUCCH), which is associated with a first CCE number of the one or more CCEs, and second-spreads the first-spread response signal with an orthogonal sequence that is determined among a plurality of orthogonal sequences from the index. One of cyclic shift values used for an orthogonal sequence is determined from an index of the PUCCH, which is associated with an odd CCE number, and another one of the cyclic shift values used for the same orthogonal sequence is determined from an index of the PUCCH, which is associated with an even CCE number. | 12-18-2014 |
20140369437 | RECEIVER DEVICE, TRANSMITTER DEVICE, RECEPTION METHOD, AND TRANSMISSION METHOD - Provided is a receiver device that can switch between transmission methods, while minimizing increase in the number of blind decryption iterations and the amount of signaling needed for acknowledgement. In this device, a receiver part ( | 12-18-2014 |
20140376471 | WIRELESS COMMUNICATION TERMINAL DEVICE AND METHOD FOR CONTROLLING TRANSMISSION POWER - The present invention prevents an increased error rate, degradation of reception-quality estimation precision, and complication of control in an operation for independently controlling, for individual component carriers (CC), transmission timing of an uplink subframe. When a radio communication terminal device independently controls the subframe transmission timing for individual CCs, and a portion of the total transmission power where overlap exists between the trailing-end portion of a subframe of a CC and a leading-end portion of a subframe of another CC exceeds a tolerance, the terminal device controls the timing such that the transmission power of a symbol including the overlapping portion is reduced. | 12-25-2014 |
20140376487 | TRANSMISSION DEVICE, RECEPTION DEVICE, AND METHOD FOR CONTROLLING TRANSMISSION POWER - This transmission device can notify of a control value pertaining to transmission power without causing an increase in the amount of signaling. A control unit ( | 12-25-2014 |
20150016398 | TERMINAL DEVICE, BASE STATION DEVICE, TRANSMITTING METHOD AND RECEIVING METHOD - The present invention pertains to a terminal device, which, when ARQ is used for communication that uses an uplink unit band and a plurality of downlink unit bands associated with the uplink unit band, and when a transmission mode that supports up to 2 TB in a PCell is set in the terminal, is capable of reducing the amount of signaling from a base station while eliminating a lack of PUCCH resources when semi-permanent scheduling (SPS) is used in the PCell. A control unit in this device selects one value among values obtained by adding 1 to four PUCCH resource indexes, which have been preset for PUCCH resource 1 by the base station, on the basis of values for transmission power control information (TPC command for PUCCH) in a PDCCH, for which notification has been received at the start of SPS. | 01-15-2015 |
20150023292 | INTEGRATED CIRCUIT FOR CONTROL CHANNEL ALLOCATION - A wireless communication base station apparatus that allows the number of times of blind decodings at a mobile station to be reduced without increasing the overhead caused by notifying information. In this apparatus, a CCE allocation part allocates allocation information allocated to a PDCCH received from modulation parts to a particular one of a plurality of search spaces that is corresponding to a CCE aggregation size of the PDCCH. A placement part then places the allocation information in one of downstream line resources, reserved for the PDCCH, that is corresponding to the CCE of the particular search space to which the allocation information has been allocated. A radio transmission part then transmits an OFDM symbol, in which the allocation information has been placed, to the mobile station from an antenna. | 01-22-2015 |
20150029971 | WIRELESS COMMUNICATION TERMINAL DEVICE AND CONTROL CHANNEL FORMING METHOD - Provided are a wireless communication terminal device and a control channel forming method with which, in the forming of a control channel for transmitting control information including an ACK/NACK and CSI (channel state information), wasteful use of resources is reduced compared to that in related art. In the case where CSI is transmitted independently, and in the case where CSI and an ACK/NACK are transmitted at the same time, the same format is used to form a control channel. Furthermore, in the case where an ACK/NACK is transmitted independently, another format is used if a component carrier (CC) number is equal to or less than 2, and the same format is used if the CC number is equal to or greater than 3. | 01-29-2015 |
20150036632 | COMMUNICATION APPARATUS AND COMMUNICATION METHOD - A communication apparatus and a communication method capable of suppressing an increase of bits used for a request to send a reference signal and flexibly setting a resource used for sending a reference signal. In a base station, a transmission processing unit transmits, in one of a plurality of formats, control information containing a request to send a sounding reference signal (A-SRS), and a reception processing unit receives the transmitted A-SRS using the resource specified by the format of the transmitted control information. Then, the plurality of formats is associated with each different SRS resource by a setting unit. | 02-05-2015 |
20150043466 | TRANSMISSION DEVICE, RECEIVING DEVICE, TRANSMISSION METHOD, AND RECEIVING METHOD - This invention is a transmission device capable of enhancing the reception characteristics of a terminal when employing transmit diversity using two antenna ports in an ePDCCH. In a base station ( | 02-12-2015 |
20150043495 | RECEPTION DEVICE AND RECEPTION METHOD - Disclosed are a transmission device and a transmission method with which it is possible to prevent delays in data transmission and to minimize the increase in the number of bits necessary for the notification of a CC to be used, in cases where a CC to be used is added during communication employing carrier aggregation. When a component carrier is to be added to a component carrier set, a setting section provided in a base station: modifies a CIF table that defines the correspondence between code points, which are used as labels for the respective component carriers contained in the component carrier set, and the identification information of the respective component carriers; and assigns a vacant code point to the component carrier to be added, while keeping the correspondence between the code points and the component carrier identification information defined in the CIF table before modification. | 02-12-2015 |
20150043497 | COMMUNICATION APPARATUS AND RETRANSMISSION CONTROL METHOD - Provided are a communication apparatus and a method for receiving a response signal transmitted from a terminal configured with one or more downlink component carriers. The communication apparatus includes a transmitting section and a receiving section. The transmitting section is configured to transmit, to the terminal, downlink assignment information indicating one or more resources for downlink data, each of the one or more resources being assigned to one of the one or more downlink component carrier(s), and configured to transmit the downlink data to the terminal. The receiving section is configured to receive one or more response signals for the downlink data, which are transmitted from the terminal. The terminal makes the phase points of the response signals different in accordance with a number of downlink data which has been successively received. | 02-12-2015 |
20150043503 | COMMUNICATION APPARATUS AND METHOD FOR RECEIVING A RESPONSE SIGNAL - A radio communication mobile station device reduces the number of blind decoding processes at a mobile station without increasing overhead by report information. The device includes a judgment unit which judges a particular PUCCH to which a response signal corresponding to the downstream line data is to be allocated among a plurality of PUCCH, according to a CCE occupied by PDCCH allocated to a particular search space corresponding to a CCE aggregation size of the PDCCH to which allocation information destined to the local station is allocated among search spaces changing in accordance with the CFI value; and a control unit which controls a cyclic shift amount of a ZAC sequence of the response signal and a block-wise spread code sequence according to a correspondence between CCE occupied by PDCCH allocated to a particular search space and a particular PUCCH resource, the correspondence changing in accordance with the CFI value. | 02-12-2015 |
20150049728 | MOBILE TERMINAL AND CONTROL CHANNEL RECEIVING METHOD - A base station can prevent deterioration of data channel application control accuracy due to influence of transmission power control to a control channel. In the base station, each encoding sect ion performs encoding processing to an SCCH (Shared Control Channel) of each mobile station, each modulating section performs modulation processing to the encoded SCCH, an arranging section arranges the SCCH to each mobile station to one of a plurality of subcarriers which configure an OFDM symbol, and transmission power control section controls transmission power of the SCCH based on reception quality information reported from each mobile station. The arranging section arranges a plurality of the SCCH to be under transmission power control to one of the subcarriers so that combinations at resource blocks are the same. | 02-19-2015 |
20150078151 | TERMINAL STATION APPARATUS, BASE STATION APPARATUS, TRANSMISSION METHOD AND CONTROL METHOD - A terminal apparatus is disclosed wherein even in a case of applying SU-MIMO and MU-MIMO at the same time, the inter-sequence interference in a plurality of pilot signals used by the same terminal can be suppressed to a low value, while the inter-sequence interference in pilot signal between terminals can be reduced. In this terminal apparatus: a pilot information deciding unit decides, based on allocation control information, Walsh sequences of the respective ones of first and second stream groups at least one of which includes a plurality of streams; and a pilot signal generating unit forms a transport signal by using the decided Walsh sequences to spread the streams included in the first and second stream groups. During this, Walsh sequences orthogonal to each other are established in the first and second stream groups, and users are allocated on a stream group-by-stream group basis. | 03-19-2015 |
20150078313 | BASE STATION, TERMINAL, BAND ALLOCATION METHOD, AND DOWNLINK DATA COMMUNICATION METHOD - Provided are a base station, a terminal, a band allocation method, and a downlink data communication method with which bands can be efficiently allocated. In a base station in which a plurality of unit bands can be allocated to a single communication, when a data receiver acquires terminal capability information transmitted by a terminal in the initial access unit band and the bandwidth available for communication indicated by the terminal capability information can accommodate a plurality of unit bands, a unit band group which includes the initial access unit band as well as the unit bands adjacent thereto is allocated to the terminal, and a communication band movement indication, which indicates the movement of the center frequency in the communication band of the terminal toward the center frequency in the unit band group, is transmitted to the terminal using the initial access unit band. | 03-19-2015 |
20150078316 | COMMUNICATION APPARATUS AND CONTROL INFORMATION RECEIVING METHOD - In a base station, a control unit and a data size regulation unit control the data size of downstream assignment control data and upstream assignment control data in the PDCCH signal based on the communication format used between the base station and a terminal, the number of base station antennas (M) (nonnegative number), the number of terminal antennas (N) (nonnegative number), the bandwidth of the downstream band, and the bandwidth of the upstream band. Specifically, the control unit determines it is unnecessary to adjust the aforementioned data size when the selected communication format is first established between multiple antennas and when where there are multiple for one of M and N and only one for the other. The quality of downstream assignment control data is prevented from degrading, while preventing the number of blind determinations from increasing on the receiving side of the downstream control channel signal. | 03-19-2015 |
20150078330 | BASE STATION, TERMINAL, BAND ALLOCATION METHOD, AND DOWNLINK DATA COMMUNICATION METHOD - Provided are a base station, a terminal, a band allocation method, and a downlink data communication method in which a mapping method for synchronization signals and report signals is implemented with high resource usage efficiency when a first system in which an independent single communication is allocated to a unit band co-exists with a second system in which a plurality of unit bands can be allocated to a single communication. In a base station, an OFDM signal generation unit maps primary synchronization channel (P-SCH), secondary synchronization channel (S-SCH), primary broadcast channel (P-BCH), and dynamic broadcast channel (D-BCH), which can be decoded by both an LTE terminal and an LTE+ terminal, to some of a plurality of unit bands. The OFDM signal generation unit also maps D-BCH+, which can be decoded only by an LTE+ terminal, to all of the plurality of unit bands to produce a multiplexed transmission signal. | 03-19-2015 |
20150078331 | TERMINAL APPARATUS AND CONTROL CHANNEL DETECTING METHOD - A radio communication base station device which can reduce the number of judgment times for a control signal in a mobile station, thereby suppressing power consumption by the mobile station. The radio communication base station device ( | 03-19-2015 |