Patent application number | Description | Published |
20090005049 | Base Station Apparatus And Wireless Transmission Method - A base station apparatus capable of effectively distributing resources of a wireless communication system, enhancing the throughput and increasing the number of users accommodated in the communication system. This apparatus increases or reduces, in accordance with the traffic of the communication system, the repetition number of transport data addressed to a mobile station being under a soft handover. For example, when the resource usage rates of BS | 01-01-2009 |
20090036135 | MULTI-CARRIER COMMUNICATION DEVICE AND MULTI-CARRIER COMMUNICATION METHOD - There is provided a multi-carrier communication method capable of preventing lowering of a throughput of another mobile device accompanying allocation of a sub-carrier for a new mobile station device. This multi-carrier communication method can acquire reception quality information for one of the sub-carriers already allocated in an MS ( | 02-05-2009 |
20090080372 | BASE STATION DEVICE, AND MOBILE STATION DEVICE - Provided are a base station device and a mobile station device, which can lighten a cell-search processing. The base station device ( | 03-26-2009 |
20090080547 | BASE STATION APPARATUS AND MOBILE STATION APPARATUS - A base station apparatus that transmits frames in accordance with a communication format, and a mobile station apparatus that uses the frames to determine the communication format of the base station apparatus, and then performs an adaptive cell search in accordance with the determined communication format. The base station apparatus ( | 03-26-2009 |
20090135802 | SCALABLE BANDWIDTH SYSTEM, RADIO BASE STATION APPARATUS, SYNCHRONOUS CHANNEL TRANSMITTING METHOD AND TRANSMISSION METHOD - A scalable bandwidth system wherein even if a terminal does not know the breakdowns of the services in all of the bandwidths, it can perform a correlation processing of synchronous channels (SCH). A base station repetitively transmits a synchronous channel, by unit of the shortest bandwidth (e.g., 1.25 MHz) of a plurality of bandwidths served by the system, over the whole band of the longest bandwidth (e.g., 5 MHz). The terminal calculates the correlation between a synchronous channel sequence signal of the unit of the shortest bandwidth held in advance and the repetitively transmitted synchronous channel, and determines, as a frame timing, a timing at which the maximum correlation value is obtained. | 05-28-2009 |
20090136037 | BASE STATION DEVICE AND MOBILE STATION DEVICE - There are provided a base station device transmitting a frame capable of performing cell search without being affected by arrangement of a pilot channel and a mobile station device performing cell search by using the frame. In the base station device ( | 05-28-2009 |
20090147757 | BASE STATION DEVICE AND MOBILE STATION DEVICE - There are provided a base station device and a mobile station device for increasing the speed of cell search by introducing identification of TTI timing into the cell search. In the base station device ( | 06-11-2009 |
20090303941 | SCALABLE BANDWIDTH SYSTEM, RADIO BASE STATION APPARATUS AND RADIO TERMINAL APPARATUS - A scalable bandwidth system wherein even when various terminals having different bandwidth capabilities are existent in a cell, the unbalance of traffic in the maximum bandwidth can be reduced. Terminals ( | 12-10-2009 |
20100157884 | BASE STATION DEVICE AND MOBILE STATION DEVICE - A base station device and a mobile station device both enabling improvement of the reception quality of transmission data at a mobile station by preventing a sequence for establishing synchronism and the transmission data from interfering with each other. In the base station device ( | 06-24-2010 |
20100254485 | PILOT TRANSMISSION METHOD, MIMO TRANSMISSION DEVICE, AND MIMO RECEPTION DEVICE - It is possible to provide a novel pilot transmission method which can calculate an accurate channel estimation value, a MIMO transmission device using the pilot transmission method, and a MIMO reception device which communicates with the MIMO transmission device. The MIMO transmission device ( | 10-07-2010 |
20100285805 | MULTI-CARRIER COMMUNICATION DEVICE AND MULTI-CARRIER COMMUNICATION METHOD - There is provided a multi-carrier communication method capable of preventing lowering of a throughput of another mobile device accompanying allocation of a sub-carrier for a new mobile station device. This multi-carrier communication method can acquire reception quality information for one of the sub-carriers already allocated in an MS ( | 11-11-2010 |
20100330994 | BASE STATION, RADIO COMMUNICATION SYSTEM, AND HANDOVER METHOD - When a handover request for performing a handover of a terminal ( | 12-30-2010 |
20110151867 | MOBILE TERMINAL, MACRO BASE STATION, AND CELL SELECTION SYSTEM - A mobile terminal ( | 06-23-2011 |
20110170509 | BASE STATION DEVICE, AND MOBILE STATION DEVICE - Provided are a base station device and a mobile station device, which can lighten a cell-search processing. The base station device ( | 07-14-2011 |
20110244863 | USER EQUIPMENT, BASE STATION DEVICE, COMMUNICATION SYSTEM, AND HANDOVER CONTROL METHOD - In a user equipment (UE)( | 10-06-2011 |
20110300867 | TERMINAL DEVICE, HOME BASE STATION, AND HOME BASE STATION SWITCHING DEVICE - A wireless communication system comprises an MME ( | 12-08-2011 |
20110300868 | HANDOVER DESTINATION SPECIFICATION SYSTEM, MOBILE TERMINAL, AND BASE STATION - A technology is disclosed that provides a handover destination specification system and the like capable of reducing signaling load and shortening handover processing time. According to the technology, the handover destination specification system is configured by: a mobile terminal that measures a reception quality of each cell indicating an accessible range formed by a plurality of base stations capable of being connection targets of the mobile terminal, and when the measured reception quality satisfies a predetermined condition, transmits to a connection base station, a first message including identification information of the cell that satisfies the predetermined condition and information on the reception quality of the cell; and the connection base station that transmits to the mobile terminal, a second message including information for detecting unique global identification information of the cell of which the reception quality has been measured, based on the first message. The mobile terminal detects the global identification information of the cell of which the reception quality has been measured based on the second message, checks access permission for the detected cell, and when access permission is confirmed, transmits to the connection base station, a third message including the global identification information of the cell for which access permission is granted. | 12-08-2011 |
20120088508 | TERMINAL DEVICE, WIRELESS COMMUNICATION SYSTEM, AND WIRELESS COMMUNICATION METHOD - A terminal device ( | 04-12-2012 |
20120289274 | COMMUNICATION TERMINAL AND COMMUNICATION METHOD - A communication terminal includes: a notification information acquiring section which acquires notification information containing information related to all frequencies allocated to cells provided by a base station that provides access-restricted cells; a frequency information storing section which stores cell information containing information contained in the notification information; a frequency selecting section which selects one arbitrary frequency from a plurality of frequencies provided by an access-restricted base station to be accessible in a past when detecting that the communication terminal approximates to a cell of the access-restricted base station to be accessible in the past, based on the notification information and the cell information; and a transmitting section which transmits the proximity indication message containing the frequency selected by the frequency selecting section, to the base station that provides the currently connected cell. | 11-15-2012 |
20120295625 | HANDOVER PREPROCESSING SYSTEM, MOBILE TERMINAL, BASE STATION - A technology is disclosed that provides a handover preprocessing system and the like, the handover preprocessing system capable of eliminating waste of resources used as a result of notification being reissued of a CSG cell for which access is not granted. According to the technology, the handover preprocessing system is configured by: a base station | 11-22-2012 |
20130130686 | CONNECTION METHOD, COMMUNICATION SYSTEM, MOBILE TERMINAL, INFORMATION FORWARDING DEVICE, AND SERVER - A technique is disclosed for preventing a mobile terminal from unnecessarily connecting to a local connection service provided by a mobile router. In a communication system, a UE | 05-23-2013 |
20130136027 | MOBILE TERMINAL, BASE STATION, CELL RECEPTION QUALITY MEASURING METHOD AND CELL RECEPTION QUALITY MEASURING SYSTEM - Disclosed is a technique for providing a mobile terminal and the like capable of reducing inter-cell interference between a macro cell and a small cell, suppressing frequent switching of a primary cell in carrier aggregation, and hence reducing an increase in the processing load on a base station and an increase in the power consumption of the terminal. According to the technique, there are included a receiving unit | 05-30-2013 |
20130136029 | WIRELESS COMMUNICATION SYSTEM, LOW TRANSMISSION POWER CELL BASE STATION, MACROCELL BASE STATION, WIRELESS TERMINAL, AND LOAD DISTRIBUTION METHOD - A macrocell base station controls to reduce interference between cells by a downlink signal of the macrocell base station with specific timing, the interference which a downlink signal of a low transmission power cell suffers for a wireless terminal. A low transmission power cell base station decides measurement timing with which the wireless terminal measures reception quality of the low transmission power cell based on information about the specific timing, and sends a setting message including a parameter according to the measurement timing to the wireless terminal. The wireless terminal measures reception quality with the measurement timing indicated by the parameter, and when the wireless terminal satisfies a condition for executing an event based on the measured result, the wireless terminal sends a reception quality measurement message including information indicating that the measurement is made with the measurement timing to the low transmission power cell base station. | 05-30-2013 |
20130142070 | BASE STATION AND COMMUNICATION SYSTEM - Disclosed is a technique to provide a base station and the like capable of flexibly distributing traffic for terminals of a plurality of network-sharing communication operators. According to the technique, the base station to which a plurality of mobile terminals connect and that relays a communication between the plurality of mobile terminals and a communication device as a correspondent node of the plurality of mobile terminals, includes: a configuration unit | 06-06-2013 |
20130148623 | BASE STATION, TERMINAL, TRANSMISSION METHOD, AND RECEPTION METHOD - Provided are a base station, a terminal whereby erroneous detection of control information can be reduced to prevent the degradation of the system throughput. A PDCCH generation unit ( | 06-13-2013 |
20130155990 | BASE STATION AND CONTROL INFORMATION TRANSMISSION METHOD - This base station is capable of suppressing degradation of data throughput even when a DCI for a terminal connected to the base station is transmitted via an R-PDCCH region. In this base station, a PDCCH generation unit ( | 06-20-2013 |
20130250896 | BASE STATION DEVICE, AND MOBILE STATION DEVICE - Provided are a base station device and a mobile station device, which can lighten a cell-search processing. The base station device includes a frame constitution unit for forming a frame, in which a pilot symbol multiplied by a base station scrambling code and a plurality of sequences contained in the corresponding sequence set is arranged in at least the head or tail, and a radio transmission unit for sending the formed frame. On the receiving side, the frame timing can be detected from the position of a pilot symbol contained in that frame. Since the base station scrambling code and the sequence set containing the sequences are made to correspond to each other, candidates can be narrowed to at most the base station scrambling codes of the number of the combinations of the sequences contained in the sequence set, by detecting the sequences multiplied by the pilot symbol. | 09-26-2013 |
20130315075 | WIRELESS COMMUNICATION TERMINAL, WIRELESS COMMUNICATION BASE STATION, WIRELESS COMMUNICATION SYSTEM, AND REPORTING METHOD - In a wireless communication terminal in a wireless communication system for performing a control not to transmit signals, or to transmit signals with a reduction in a transmission power by a part of radio resources for a downlink signal in a cell provided by a base station, the terminal receives control information in generating a report related to a measurement result of the cell provided by the base station, monitors a state of a radio link with an own cell, and performs measurement on reception of the downlink signal. If an instruction for restricting the measurement to a part of the radio resources is included in the control information from the base station after the radio link failure occurs, the terminal generates and transmits a radio link failure report including the measurement result in the radio resources as instructed when the radio link failure occurs. | 11-28-2013 |
20140036855 | WIRELESS COMMUNICATION DEVICE, WIRELESS COMMUNICATION TERMINAL, AND AUTOMATIC REPEAT REQUEST CONTROL METHOD - A wireless communication device used in a communication system that utilizes a coordinated multiple-point technique has a determination section that determines another wireless communication device which performs coordinated multiple-point with respect to a wireless communication terminal; an allocation determination section that determines for a predetermined number of sub-frames a proportion of multiple-data-transmission automatic repeat request control to identical-data-transmission automatic repeat request control; an automatic repeat request control section that performs multiple-data-transmission automatic repeat request control; and an automatic repeat request control section that performs identical-data-transmission automatic repeat request control. | 02-06-2014 |
20140087732 | BASE STATION, RADIO COMMUNICATION SYSTEM, AND HANDOVER METHOD - When a handover request for performing a handover of a terminal ( | 03-27-2014 |
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 |
20140153436 | WIRELESS COMMUNICATION DEVICE AND COMMUNICATION CONTROL METHOD - A wireless communication device is provided with: a means that, when traffic of said device is greater than another device in a state in which the device is wirelessly connected to a terminal without using CoMP, generates information with which a parameter is altered so that a communication area in which CoMP is used is expanded at the wireless communication device side, said parameter relating to a condition by which the terminal reports a result of a communication measurement between the device and the other device; and a means that carries out an adjustment so that a proportion of resources for communication using CoMP is increased in accordance with the traffic situations of the device and the other device. | 06-05-2014 |
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 |
20140194111 | COMMUNICATION SYSTEM, USER TERMINAL, AND COMMUNICATION DEVICE - Disclosed is a technique for starting an application used to receive a message for the application efficiently in order to reduce the processing load on and the battery consumption of a user terminal. According to this technique, a network is requested to transmit a control message to a user terminal when receiving a message addressed to an application on the user terminal, and when receiving, from a server, a message addressed to the application on the user terminal, the network transmits a control message such as paging to the user terminal. The user terminal receives the paging from the network even in the connected mode, and starts an application used to receive a message for the application on the user terminal in response to the reception of the paging so that the application can be started at timing where there exists the message to be received. | 07-10-2014 |