Patent application number | Description | Published |
20100197223 | RELAY STATION, MOBILE STATION, AND RELAY TRANSMISSION METHOD IN MOBILE COMMUNICATION SYSTEM - Provided is a mobile communication system which includes a plurality of RAT (Radio Access Technology) and can eliminate the need of a control channel for reporting RAT information so as to prevent congestion or shortage of the control channel capacity. In the mobile communication system, an LTE relay station ( | 08-05-2010 |
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 |
20100278153 | WIRELESS COMMUNICATION APPPARATUS, WIRELESS COMMUNICATION METHOD AND WIRELESS COMMUNICATION SYSTEM - The error rate characteristic in a wireless communication apparatus for relaying communications between a mobile station and a base station is improved. For the modulation level of the resource for network coding, the modulation level from a relay station to the mobile station or the modulation level from the relay station to the base station, whichever is lower, is selected and thus the modulation level becomes QPSK. The relay station preferentially assigns S | 11-04-2010 |
20100315956 | RADIO COMMUNICATION RELAY DEVICE, RADIO COMMUNICATION BASE STATION DEVICE, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD - It is possible to provide a radio communication relay device, a radio communication base station device, a radio communication system, and a radio communication method which can effectively use resources and suppress a data delay and system complexity. When a terminal starts an upstream communication with a base station via a repeater in ST | 12-16-2010 |
20110009052 | WIRELESS COMMUNICATION APPARATUS, WIRELESS COMMUNICATION METHOD, AND WIRELESS COMMUNICATION SYSTEM - There are provided a wireless communication apparatus, a wireless communication method, and a wireless communication system capable of selectively utilizing the advantages of both centralized control and distributed control while a time needed for cell searching is suppressed. FIG. | 01-13-2011 |
20110085585 | WIRELESS COMMUNICATION SYSTEM, WIRELESS COMMUNICATION APPARATUS, AND BUFFER CLEARING METHOD - A wireless communication apparatus wherein the buffer size can be reduced without increasing the overhead of signalings. In this apparatus, a buffer ( | 04-14-2011 |
20110092154 | RADIO COMMUNICATION DEVICE - Disclosed is a radio communication device capable of using a resource in which the signal cannot be received by all relay stations participating in cooperative relay for a cooperative relay. A signal-receivable frequency resource determination unit | 04-21-2011 |
20110103297 | WIRELESS COMMUNICATION APPARATUS - A repeater capable of improving the data decoding performance at a base station while achieving sharing of processing for data exchange between repeaters and initial data transmission to the base station (eNB) is provided. A repeater | 05-05-2011 |
20110111693 | RADIO COMMUNICATION BASE STATION DEVICE, RADIO COMMUNICATION RELAY STATION DEVICE, RADIO COMMUNICATION TERMINAL DEVICE, RADIO COMMUNICATION SYSTEM, AND RADIO COMMUNICATION METHOD - It is possible to provide a radio communication base station device, a radio communication relay station device, a radio communication terminal device, a radio communication system, and a radio communication method which can minimize a delay and effectively use resources. When a terminal starts an uplink communication with a base station via a repeater, [ST | 05-12-2011 |
20110141998 | 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 ( | 06-16-2011 |
20110176474 | WIRELESS RELAY STATION APPARATUS - A wireless relay station apparatus for enabling a mobile station and a base station to reliably receive network coding data and to provide sufficient reception performance is provided. (1) A repeater divides data X received from a mobile station into important data and non-important data and divides data Y received from eNB into important data and non-important data. Next, (2) the repeater places the data so that important data Sx for the mobile station and important data Sy for the eNB do not overlap, XORs (exclusive ORs) them, and generates network coding data X (X) Y. (3) The repeater applies downlink propagation inverse characteristic H | 07-21-2011 |
20110299407 | BASE STATION APPARATUS, TERMINAL DEVICE, AND RANK SETTING METHOD - A base station apparatus, in a wireless communication system supporting band aggregation, able to limit drops in throughput while lowering the amount of control information for the rank of an added band; and a terminal device and rank setting method of the same. An added band rank setting unit ( | 12-08-2011 |
20120014279 | WIRELESS TRANSMISSION APPARATUS AND PRECODING METHOD - A wireless transmission apparatus able to reliably increase outage capacity according to the state of a propagation path. This apparatus is a wireless transmission apparatus ( | 01-19-2012 |
20120014373 | WIRELESS TRANSMITTER, WIRELESS RECEIVER, AND PREAMBLE SEQUENCE GENERATION METHOD - Provided is a wireless transmitter capable of accurately specifying the number of multiplexed streams and correctly decoding the data signals when a preamble sequence transmitted from any antenna of a wireless transmitter is detected. In this device, a multiplex count determination unit ( | 01-19-2012 |
20120028684 | RADIO COMMUNICATION DEVICE AND ERROR CORRECTION/ENCODING METHOD - Provided is a radio communication device which can obtain an error ratio characteristic equivalent to the one obtained by using a tail bit, without using a tail bit in the error correction and encoding. The device includes: a blocking unit ( | 02-02-2012 |
20120147930 | WIRELESS RELAY DEVICE AND WIRELESS RELAY METHOD - Disclosed is a wireless relay device wherein the number of stream multiplexes between a wireless transmission device and a wireless reception device can be increased without increasing the number of antennas for the wireless transmission device or the number of antennas for the wireless reception device. Specifically disclosed is a wireless relay device ( | 06-14-2012 |
20120294229 | TERMINAL DEVICE AND INTERFERENCE REMOVAL METHOD - When a terminal ( | 11-22-2012 |
20120309390 | BASE STATION APPARATUS, MOBILE APPARATUS, AND COMMUNICATION METHOD - A mobile communication system includes a plurality of RAT (Radio Access Technology) and can eliminate the need of a control channel for reporting RAT information. An LTE relay station has a cover area identical to a cover area owned by a WLAN host station and relays/transmits the signal received from an LTE base station to a mobile station in the cover area of the LTE relay station. The LTE relay station adds to the signal received from the LTE base station, one of the offsets: a frequency offset, a time offset, and a power offset as information indicating that the mobile station which receives a relay signal from the local station is located in the cover area of WLAN and transmits the signal after offset addition to the mobile station located in the cover area of the LTE relay station (i.e., the cover area of WLAN). | 12-06-2012 |
20130121295 | BASE STATION DEVICE, TERMINAL DEVICE, TRANSMISSION METHOD, AND RECEPTION METHOD - A base station device causing no decrease in system throughput and guaranteeing the reception quality at a terminal when a DCI directed toward the terminal is mapped to a PDCCH region and an R-PDCCH region. A search space setting unit ( | 05-16-2013 |
20130155996 | TRANSMISSION DEVICE, RECEIVING DEVICE, TRANSMISSION METHOD AND RECEIVING METHOD - A base station ( | 06-20-2013 |
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 |