Patent application number | Description | Published |
20080232324 | Handover Control Method - During handover, an origin base station saves data packets for a mobile station, as well as instructs the mobile station to switch communication to a destination base station, and requests a host station to switch the base station that communicates with that mobile station from the origin base station to the destination base station. After that, when in accordance to the switching request it is possible to save data packets, the host station begins to save the data packets for the mobile station in the place of the origin base station, and after communication between the mobile station and the destination base station has become possible, sends the saved data packets to the mobile station via the destination base station. | 09-25-2008 |
20080254802 | MOBILE CONTROL DEVICE AND HANDOVER CONTROL METHOD - The present invention is a handover control method in a mobile communication system that performs handover control by switching base stations that communicate with a mobile terminal as the mobile terminal moves. In this handover control method, a mobile control device selects one or more handover base station candidates based on the communication state, and based on the communication capabilities of the handover base station candidates, decides a transmission rate for multicasting communication data, and transmits communication data to each of the handover base station candidates at the decided transmission rate, and a handover base station candidate that is decided as a handover base station sends the saved multicast communication data to the mobile terminal. | 10-16-2008 |
20090131070 | WIRELESS COMMUNICATION SYSTEM, BASE STATION DEVICE AND MOBILE STATION DEVICE - A wireless communication system comprises a mobile station and a base station, which use a plurality of communication channels and a pilot channel corresponding to at least one of the communication channels. The base station has a transmitting unit that employs at least one of the communication channels as a priority channel and transmits channel information of this priority channel and the other channels by use of a communication channel other than the pilot channel. The mobile station has a determining unit that determines a reception level of the pilot channel; an acquiring unit that acquires the channel information transmitted via the communication channel other than the pilot channel; and a deciding unit that decides, as an available communication channel, at least one of the communication channels based on both the channel information acquired by the acquiring unit and the reception level determined by the determining unit. | 05-21-2009 |
20090131113 | BASE STATION APPARATUS AND RECEPTION PROCESSING METHOD THEREOF - In a base station apparatus, signal processing units are connected to a corresponding antenna unit and another antenna unit, a part of resources for processing a signal received by the antenna unit corresponding to each signal processing unit is allocated to processing of a signal received by the other antenna unit, and the signals received by the corresponding antenna unit and the other antenna unit are subjected to multi-antenna reception processing using the resources. | 05-21-2009 |
20090204864 | TRANSMISSION CONTROLLING METHOD, SENDER APPARATUS AND RECEIVER APPARATUS FOR WIRELESS COMMUNICATION SYSTEM - In a wireless communication system, a sender apparatus sends a data block, for each of a plurality of stream data, with data block identification information, which does not conflict between stream data, annexed, and a reception apparatus performs a re-sending synthesis process for a data block received already and a re-sending data block to which the same data block identification information is individually annexed based on the data block identification information annexed to the received data block. Consequently, also in a case wherein the number of transmission streams between the sender apparatus and the reception apparatus is varied (reduced), the matching property of the data block which is a re-sending synthesis target can be maintained and communication can be continued normally. | 08-13-2009 |
20090219877 | COMMUNICATION APPARATUS AND ALLOCATION DETERMINING METHOD - A communication apparatus for communicating via a frame containing a plurality of first type blocks into which pilot information is inserted and a plurality of second type blocks into which control information or data is inserted, the communication apparatus including a channel estimation accuracy predicting unit for predicting channel estimation accuracy of each of the plurality of second type blocks based on channel estimate values of the plurality of first type blocks in the frame. The communication apparatus includes an allocation determining unit for determining an allocation based on priority information containing a priority of each type of the control information and data such that control information or data of a higher-priority type is inserted into a block among the plurality of second type blocks with higher channel estimation accuracy. | 09-03-2009 |
20090238134 | WIRELESS COMMUNICATION APPARATUS, WIRELESS TRANSMISSION METHOD AND WIRELESS RECEPTION METHOD - A wireless communication apparatus that transmits a wireless signal, the wireless communication apparatus including a dividing unit that divides data transmitted in a data area of a frame format of the wireless signal into a plurality of segments. The wireless communication apparatus includes an encoding unit that encodes the data segmented by the dividing unit segment by segment. | 09-24-2009 |
20090238149 | WIRELESS COMMUNICATION METHOD, WIRELESS BASE STATION, WIRELESS TERMINAL, AND WIRELESS COMMUNICATION SYSTEM - A first wireless base station providing a first wireless zone encodes a first signal to be transmitted to the first wireless zone at a first coding rate, and transmits the signal at a first transmitting power to the first wireless zone. A second wireless base station belonging to the first wireless zone and providing a second radio zone encodes a second signal common with the first signal at a second coding rate, and transmits the signal at a second transmitting power to the second wireless zone. | 09-24-2009 |
20090296667 | Communication Method In Mobile Communication System, And Mobile Station And Base Station In The Same System - A scheduling method for transmitting an uplink signal from a mobile station to a base station comprises transmitting the uplink signal in a first scheduling mode in which the mobile station can transmit the uplink data without permission of the base station if an uplink communication state between the base station and the mobile station is higher than or equal to a predetermined quality; and transmitting the uplink signal in a second scheduling mode in which the permission is necessary for the mobile station transmitting the uplink data if the uplink communication state is lower than the predetermined quality. | 12-03-2009 |
20090311967 | WIRELESS BASE STATION, MOBILE TERMINAL, COMMUNICATIONS CONTROLLING METHOD, AND WIRELESS COMMUNICATIONS SYSTEM - The ratio of the number of connection sequences started upon reception of a connection request signal transmitted from the mobile terminals to the number of completed connection sequences is monitored, and on the basis of the monitoring result, the presence or the absence of a congestion state in the communications network is evaluated. | 12-17-2009 |
20090318156 | Base Station Apparatus and Mobile Communication System - Disclosed is a handover method in radio communication. A base station apparatus monitors the receiving state of a terminal, detects, based upon the receiving state, whether the terminal is one in which there is a possibility that loss of a call or a decline in quality will occur or one in which loss of a call or a decline in quality has occurred, and hands over the terminal to another base station apparatus having a carrier frequency different from that of the present base station apparatus. | 12-24-2009 |
20100009693 | Base Station, Scheduling Method, And Wireless Terminal - In a base station, a received signal strength calculation unit calculates the received signal strength of data sent by wireless terminals. A scheduler re-allocates the wireless resource next to a wireless terminal that will cause the smallest change from the received signal strength of the currently allocated wireless terminal. The base station can receive data sent from the wireless terminals in such a manner that the received signal strength varies gradually, and degradation in quality of reception can be suppressed. | 01-14-2010 |
20100029333 | BASE TRANSCEIVER STATION - A base transceiver station performing communications with user equipment, includes a receiving unit to receive an uplink transmission signal containing a propagation path fluctuation value between a self-device and the user equipment from the user equipment; and a communication permitting unit to control a period of time during which a permission of communications is given to the user equipment based on the propagation path fluctuation value. | 02-04-2010 |
20100039979 | BROADCAST AND MULTICAST SERVICE COMMUNICATION METHOD, BASE STATION, AND MOBILE STATION - Controlling broadcast and multicast service communication including transmitting request signaling information for requesting broadcast and multicast service from a mobile station to a base station using preamble codes of specified random access channel (RACH) signals, and discriminating the preamble codes of the specified RACH signals from among preamble codes of RACH signals which have been received. Further including transmitting reception completion responses to the mobile station which transmitted the preamble codes from the base station after discriminating the preamble codes, including transmitting a request for starting broadcast and multicast service to a multimedia-broadcast-and-multicast-service transmission apparatus when the base station first receives at least one of the preamble codes of the specified RACH signals for the broadcast and multicast service, and broadcasting and multicasting, in the base station, of multimedia data supplied by the multimedia-broadcast-and-multicast-service transmission apparatus to the mobile station. | 02-18-2010 |
20100040161 | WIRELESS TELECOMMUNICATION SYSTEM, TRANSMITTER AND RECEIVER - In a wireless telecommunication system for transmitting a plurality of streams from a base transmission station comprising a plurality of antennas to a mobile station comprising a plurality of antennas, the base transmission station respectively transmits, by way of a plurality of the antennas, each stream obtained by dividing data to be transmitted. The mobile station respectively receives each stream by utilizing the plurality of antennas. A measurement unit respectively measures a reception quality or received power from each antenna relating to a stream. A changeover unit carries out a handover for each stream according to a measurement result by the measurement unit. | 02-18-2010 |
20100046654 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications system for communications by a multicarrier transmission mode between a plurality of communications apparatuses, wherein an overall frequency band assigned to the communications system is divided into a plurality of frequency bands each having a constant bandwidth and a specific band. The divided bands are used to transmit used frequency band information thereby indicating the assignment of the remaining bands used between said communications apparatuses. The specific band is defined as a main band for transmitting control channel information including used frequency band information and data channel information. The main band may be added with an extension band for transmitting further data channel information. The main band and extension band can be changed in the frequency band used along with time or can be changed in the number thereof. Both the main band and the extension bands are preferably used for multiplexing by some of communications apparatuses. | 02-25-2010 |
20100142431 | INFORMATION DOWNLOADING APPARATUS AND MOBILE TERMINAL - A technique for improving the efficiency of downloading transmission data is disclosed. An information downloading apparatus downloads differing sets of information to predetermined groups to which a mobile terminal may belong. This apparatus includes a channel selecting unit for selecting from plural information channels an information channel for transmitting transmission data and a transmitting unit for transmitting transmission data using the selected information channel. The channel selecting unit selects an information channel so that sets of transmission data with differing destination addresses may be transmitted through differing information channels. The transmitting unit transmits to each group, through a control channel, information pertaining to whether a set of transmission data exists, the information channel to be used if the set of transmission data exists, and the data length of the set of transmission data. The control channel includes time slots that are associated with the groups. | 06-10-2010 |
20100190505 | BASE STATION, COMMUNICATION TERMINAL, METHOD FOR COMMUNICATION AT BASE STATION, METHOD FOR COMMUNICATION AT COMMUNICATION TERMINAL, AND COMMUNICATION SYSTEM - According to priorities determined on the basis of a number of pieces of battery information which concern batteries of a number of communication terminals and each of which is received from the communication terminals, data communication with communication terminals are controlled. The priorities are varied, irrespective of a variation in the pieces of battery information, according to a rule predetermined. | 07-29-2010 |
20100220681 | CONTROL CHANNEL INFORMATION TRANSMISSION METHOD, AND BASE STATION AND TERMINAL USING THE SAME METHOD - A method for transmitting a control channel information to perform an adaptive coding and modulation comprising performing error correction coding at a predetermined coding rate for the control channel information; modulating according to a predetermined modulation scheme and transmitting the error correction coded control channel information; and further, prior to the modulation, performing code decimation or code repetition of the error correction coded signal, according to whether or not Multi Input Multi Output is applied. | 09-02-2010 |
20100232394 | MOBILE CONTROL DEVICE AND HANDOVER CONTROL METHOD - The present invention is a handover control method in a mobile communication system that performs handover control by switching base stations that communicate with a mobile terminal as the mobile terminal moves. In this handover control method, a mobile control device selects one or more handover base station candidates based on the communication state, and based on the communication capabilities of the handover base station candidates, decides a transmission rate for multicasting communication data, and transmits communication data to each of the handover base station candidates at the decided transmission rate, and a handover base station candidate that is decided as a handover base station sends the saved multicast communication data to the mobile terminal. | 09-16-2010 |
20100248659 | WIRELESS COMMUNICATION DEVICE AND DIRECTIONAL ANTENNA CONTROL METHOD - A wireless communication device includes a directional antenna that transmits radio signals, and an antenna control unit that measures, in a plurality of directions, spatial lengths from the wireless communication device to an object nearest the wireless communication device, and directs a directional antenna beam radiation direction toward a direction having the longest of the measured spatial lengths, when transmitting the radio signals. | 09-30-2010 |
20100284362 | Communication Method In Mobile Communication System, And Mobile Station And Base Station In The Same System - The present method adds uplink data to a transmission request sent to the base station from the mobile station for obtaining permission for data transmission, or to a channel establishment request sent from the mobile station to the base station for establishing a channel in order to send the transmission request therethrough. This makes it possible to suppress delay caused by negotiation prior to actual uplink data transmission as much as possible, thereby realizing efficient uplink data transmission, that is, improved throughput of uplink communication. | 11-11-2010 |
20100303000 | WIRELESS RELAY DEVICE, WIRELESS RELAY METHOD, AND WIRELESS COMMUNICATION SYSTEM - A wireless relay device that transmits a reception signal from a transmission device to a reception device includes a determination section configured to determine whether or not the reception signal is a retransmission signal retransmitted from the transmission device, and an amplification section configured to amplify the reception signal when the determination section determines that the reception signal is the retransmission signal, and not to amplify the reception signal when the determination section determines that the reception signal is not the retransmission signal. | 12-02-2010 |
20110134884 | METHOD FOR CONTROLLING COMMUNICATION, WIRELESS DEVICE, AND BASE STATION - A wireless device transmits first information, representing whether the wireless device expects to receive data from a base station, to the base station before receipt of an inquiry from the base station about whether the wireless device expects to receive the data, and on receipt of the inquiry from the base station, restricts transmission of a response to the inquiry to the base station if the first information is not changed. | 06-09-2011 |
20110200138 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications apparatus accommodated in a communications system for exchange of information between a communications apparatuses by a multicarrier transmission mode using a plurality of subcarriers. The communications apparatus comprises of a dedicated transmission data generator for each communications apparatus, configured to generate frequency band information indicating which frequency band is to be used for transmission of data information between each communications apparatus and a transmitter configured to transmit the dedicated frequency band information for each communications apparatus by using a specific frequency band which is set from among a plurality of frequency bands assigned to the communications system, in which the specific frequency band is set as a primary band in frequency band assigned to the communication system. | 08-18-2011 |
20110255457 | MOBILE COMMUNICATION NETWORK SYSTEM AND LOCATION REGISTRATION METHOD - The mobile communication network system having a plurality of mobile communication systems each including a base station performing wireless communications with a mobile station, comprises a storage unit storing location information of the mobile station, an acquisition unit acquiring, when receiving a location registering request from the mobile station, a communication-enabled mobile communication system in the mobile station as a sender of the location registering request, a specifying unit specifying a base station existing within the acquired communication-enabled mobile communication system and existing in the periphery of the base station receiving the location registering request, and a control unit storing the storage unit with information of the base station receiving the location registering request and information of the specified base station as location information about the sender mobile station of the location registering request. | 10-20-2011 |
20120002585 | INFORMATION DOWNLOADING APPARATUS AND MOBILE TERMINAL - A technique for improving the efficiency of downloading transmission data is disclosed. An information downloading apparatus downloads differing sets of information to predetermined groups to which a mobile terminal may belong. This apparatus includes a channel selecting unit for selecting from plural information channels an information channel for transmitting transmission data and a transmitting unit for transmitting transmission data using the selected information channel. The channel selecting unit selects an information channel so that sets of transmission data with differing destination addresses may be transmitted through differing information channels. The transmitting unit transmits to each group, through a control channel, information pertaining to whether a set of transmission data exists, the information channel to be used if the set of transmission data exists, and the data length of the set of transmission data. The control channel includes time slots that are associated with the groups. | 01-05-2012 |
20120087433 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications apparatus accommodated in a communications system for exchange of information between a communications apparatuses by a multicarrier transmission mode using a plurality of subcarriers. The communications apparatus includes a dedicated transmission data generator for each communications apparatus, configured to generate frequency band information indicating which frequency band is to be used for transmission of data information between each communications apparatus; and a transmitter configured to transmit the dedicated frequency band information with dedicated control channel for each communications apparatus by using a specific frequency band which is set from among a plurality of frequency bands assigned to the communications system, in which the specific frequency band is set as a primary band in a frequency band assigned to the communication system. | 04-12-2012 |
20120243624 | TRANSMISSION CONTROLLING METHOD, SENDER APPARATUS AND RECEIVER APPARATUS FOR WIRELESS COMMUNICATION SYSTEM - A transmission controlling method for a wireless communication system wherein a plurality of data blocks can be transmitted from a sender apparatus having a plurality of sending antennas to a receiver apparatus, the transmission controlling method includes on the sender apparatus, sending process information which is not competitive between data blocks to the receiver apparatus with a control channel; and sending the data block to the receiver apparatus; and on the receiver apparatus, receiving the data block and the process information from the sender apparatus. | 09-27-2012 |
20120250776 | TRANSMISSION CONTROLLING METHOD, SENDER APPARATUS AND RECEIVER APPARATUS FOR WIRELESS COMMUNICATION SYSTEM - A transmission controlling method for a wireless communication system wherein a plurality of data blocks can be transmitted from a sender apparatus having a plurality of sending antennas to a receiver apparatus, the transmission controlling method including on the sender apparatus, sending process information which prevent plurality of data blocks from competing to the receiver apparatus with a control channel; and on the receiver apparatus, combining, based on the process information, the data block received already and a re-sent data block. | 10-04-2012 |
20120275434 | Base Station Apparatus and Mobile Communication System - Disclosed is a handover method in radio communication. A base station apparatus monitors the receiving state of a terminal, detects, based upon the receiving state, whether the terminal is one in which there is a possibility that loss of a call or a decline in quality will occur or one in which loss of a call or a decline in quality has occurred, and hands over the terminal to another base station apparatus having a carrier frequency different from that of the present base station apparatus. | 11-01-2012 |
20120281669 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications system for exchange of information between a base station and a terminal by a multicarrier transmission mode using a plurality of subcarriers. The communication system includes a base station, a transmission data generator configured to generate frequency band information indicating which frequency band is to be used for transmission of data between said communication apparatuses; and a transmitter configured to transmit the frequency band information, using a specific frequency band, set from among a plurality of frequency bands assigned to the communications system, and to transmit data by using at least one frequency band set from among said plurality of frequency bands, and at the time of establishing the wireless channel, the frequency band usable by the communications apparatus is restricted, and said specific frequency band and said at least one frequency band set, other than the specific frequency band, are assigned within that restricted frequency band. | 11-08-2012 |
20120287808 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications system for exchange of information between communications apparatuses by a multicarrier transmission mode using a plurality of subcarriers, the communication system includes a transmission data generator configured to generate frequency band information indicating which frequency band is to be used for transmission of data information between said communication apparatuses and a transmitter configured to transmit the frequency band information by using a specific frequency band which is set from among a plurality of frequency band assigned to the communications system, and to transmit data information by using at least one frequency band set from among said plurality of frequency bands; and a receiver configured to receive the frequency band information by using the specific frequency band, wherein said specific frequency band also transmits data information and said specific frequency band is made variable. | 11-15-2012 |
20120287890 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications system for exchange of information between communications apparatuses by a multicarrier transmission mode using a plurality of subcarriers, the communication system comprising: a transmission data generator configured to generate frequency band information indicating which frequency band is to be used for transmission of data information between said communication apparatuses and a transmitter configured to transmit the frequency band information by using a specific frequency band which is set from among a plurality of frequency band assigned to the communications system, and to transmit data information by using at least one frequency band set from among said plurality of frequency bands and a receiver configured to receive the frequency band information by using the specific frequency band. Furthermore, at least one frequency band set from among said plurality of frequency bands, other than the specific frequency band, is made variable. | 11-15-2012 |
20120287891 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications system for exchange of information between communications apparatuses by a multicarrier transmission mode using a plurality of subcarriers, includes a transmission data generator configured to generate frequency band information indicating which frequency band is to be used for transmission of data information between said communication apparatuses; a transmitter configured to transmit the frequency band information by using a specific frequency band which is set from among a plurality of frequency band assigned to the communications system, and to transmit data information by using at least one frequency band set from among said plurality of frequency bands; a receiver configured to receive the frequency band information by using the specific frequency band, whereby the specific frequency band among said plurality of frequency bands and at least one frequency band set among the plurality of frequency bands, other than the specific frequency band, are made variable to avoid overlap. | 11-15-2012 |
20120294265 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications system for exchange of information between communications apparatuses by a multicarrier transmission mode using a plurality of subcarriers, the communication system includes a transmission data generator configured to generate frequency band information indicating which frequency band is to be used for transmission of data information between said communication apparatuses and a transmitter configured to transmit the frequency band information by using a specific frequency band which is set from among a plurality of frequency band assigned to the communications system, and to transmit data information by using at least one frequency band set from among said plurality of frequency bands and a receiver configured to receive the frequency band information by using the specific frequency band, whereby one or more of said frequency band is assigned consecutive with said specific frequency band along a frequency axis. | 11-22-2012 |
20120300730 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications system for exchange of information between communications apparatuses by a multicarrier transmission mode using a plurality of subcarriers, the communication system includes a transmission data generator configured to generate frequency band information indicating which frequency band is to be used for transmission of data information between said communication apparatuses and a transmitter configured to transmit the frequency band information by using a specific frequency band which is set from among a plurality of frequency band assigned to the communications system, and to transmit data information by using at least one frequency band set from among said plurality of frequency bands; and a receiver configured to receive the frequency band information by using the specific frequency band, wherein bandwidths of said plurality of frequency bands are made a predetermined value, and also numbers of subcarriers in each of the bands are made a predetermined value. | 11-29-2012 |
20120300731 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications system for exchange of information between communications apparatuses by a multicarrier transmission mode using a plurality of subcarriers, that includes a transmission data generator configured to generate frequency band information indicating which frequency band is to be used for transmission of data between said communication apparatuses; a transmitter configured to transmit the frequency band information, using a specific frequency band, set from among a plurality of frequency band assigned to the communications system, to transmit data using at least one frequency band set from among said plurality of frequency bands; a receiver configured to receive the frequency band information by using the specific frequency band, wherein one or more of said frequency band is assigned not consecutive with said specific frequency band along a frequency axis, and at least one not used subcarrier is inserted between the specific frequency and the frequency band or between said frequency bands. | 11-29-2012 |
20120314657 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A communications system that includes a transmission data generator configured to generate frequency band information indicating which frequency band is to be used for transmission of data information between said communication apparatuses; a transmitter configured to transmit the frequency band information by using a specific frequency band, set from among a plurality of frequency band assigned to the communications system, to transmit data information using at least one frequency band set from among said plurality of frequency bands; a receiver configured to receive the frequency band information, using the specific frequency band. The frequency band set as said at least one frequency band set from among said plurality of frequency bands, other than the specific frequency band, is made variable, at the time of establishing the wireless channel, the frequency band usable by the communications apparatus is restricted. | 12-13-2012 |
20130028166 | Mobile Wireless Communication System, Access Gateway, Wireless Base Station, And Mobile Wireless Communication Control Method - The present invention discloses a wireless mobile communication system for transferring MBMS data from an access gateway to plural wireless base stations and transmitting the MBMS data from the plural wireless base stations to a wireless mobile station at the same time. The system includes a transferring part included in the access gateway for copying the MBMS data in a number corresponding to the number of the plural wireless base stations, adding a header indicative of data transmission time to the MBMS data, and transferring the MBMS data to the plural wireless base stations; a transmitting part included in each the plural wireless base stations for extracting the data transmission time from the header of the transferred MBMS data, deleting the header from the MBMS data, and transmitting the MBMS data to the wireless mobile station. | 01-31-2013 |
20130114750 | CONTROL CHANNEL INFORMATION TRANSMISSION METHOD, AND BASE STATION AND TERMINAL USING THE SAME METHOD - A radio communication system that includes an encoder configured to perform error correction coding for control channel information by a given error correction coding rate; a modulator configured to perform modulation of the error correction coded control channel information for transmission according to a given modulation scheme; and a processing section configured to perform code decimation of the error correction coded control channel information prior to the modulation, the code decimation being different according to whether the Multi Input Multi Output is applied or not. | 05-09-2013 |
20130121285 | CONTROL CHANNEL INFORMATION TRANSMISSION METHOD, AND BASE STATION AND TERMINAL USING THE SAME METHOD - A radio communication system that includes an encoder configured to perform error correction coding for control channel information by a given error correction coding rate and a modulator configured to perform modulation of the error correction coded control channel information for transmission according to a given modulation scheme, code decimation being performed for the error correction coded control channel information prior to the modulation, and the code decimation being different according to whether Multi Input Multi Output is applied or not. | 05-16-2013 |
20130129002 | TRANSMISSION CONTROLLING METHOD, SENDER APPARATUS AND RECEIVER APPARATUS FOR WIRELESS COMMUNICATION SYSTEM - A wireless communication system including a sender apparatus having a plurality of transmitting antennas that performs MIMO transmission of a plurality of data blocks; and a receiver apparatus that receives the plurality of data blocks. The sender apparatus transmits a process number via a control channel different from a data channel to the receiver apparatus, and wherein when the MIMO diversity transmission is performed, the receiver apparatus performs HARQ processing in the received data blocks based on not a process number which prevents the data blocks from competing but the received process number from the sender apparatus. | 05-23-2013 |
20130129003 | TRANSMISSION CONTROLLING METHOD, SENDER APPARATUS AND RECEIVER APPARATUS FOR WIRELESS COMMUNICATION SYSTEM - A wireless communication system including a sender apparatus having a plurality of transmitting antennas that transmits a plurality of data blocks; and a receiver apparatus that receives the plurality of data blocks, wherein the sender apparatus transmits a process number via a control channel different from a data channel to the receiver apparatus, and wherein the receiver apparatus performs HARQ processing of received data blocks based on the received process number which prevents the data blocks from competing. | 05-23-2013 |
20140080536 | BASE TRANSCEIVER STATION - A base transceiver station performing communications with user equipment, includes a receiving unit to receive an uplink transmission signal containing a propagation path fluctuation value between a self-device and the user equipment from the user equipment; and a communication permitting unit to control a period of time during which a permission of communications is given to the user equipment based on the propagation path fluctuation value. | 03-20-2014 |
20140153525 | COMMUNICATIONS APPARATUS AND COMMUNICATIONS SYSTEM USING MULTICARRIER TRANSMISSION MODE - A base station in a communications system for exchange of information, includes, a transmission data generator configured to generate frequency band information indicating which frequency band is to be used for transmission of data information with a mobile station; a transmitter configured to transmit the frequency band information, using a specific frequency band which is set from among a plurality of frequency band assigned to the communications system, and to transmit data information by using at least one frequency band set from among said plurality of frequency bands; wherein at least one frequency band set from among said plurality of frequency bands, other than the specific frequency band, is made variable, wherein at the time of establishing the wireless channel, the frequency band usable by the mobile station is restricted, at least one frequency band, other than the specific frequency band, are dynamically assigned within that restricted frequency band. | 06-05-2014 |
20140314045 | RADIO COMMUNICATIONS SYSTEM - A scheduling process handles a plurality of communication services in a collective manner, thus making a radio communications system more operable. A pilot signal sender sends pilot signals with carrier frequencies each corresponding to an N (N≧1) different communication services. A scheduler collects N×n instances of propagation environment data from n (n≧1) terminal devices and selects terminal devices and communication services therefor by assigning terminal devices having a better propagation environment to the plurality of different communication services in a collective manner. The pilot signals are used by a propagation environment data sender to measure and report a propagation environment of each carrier frequency. A communication function configurer automatically sets up a communication function to adapt to the communication service that the base station has assigned. | 10-23-2014 |