| Patent application number | Description | Published |
|---|
| 20080212543 | RADIO COMMUNICATION SYSTEM, BASE STATION AND RADIO COMMUNICATION METHOD - The present invention is provided with a control channel searching unit | 09-04-2008 |
| 20080222482 | TRANSMITTER AND RECEIVER - There is provided with a transmitter including: an input unit configured to input a data symbol sequence; a block generator configured to sequentially generate data blocks each including a plurality of data symbols by using the data symbol sequence; an addition unit configured to add a duplicate of h data symbols at an end of a first data block to a head of the first data block as a cyclic prefix to obtain a first data block with the cyclic prefix; and a transmission unit configured to transmit the first data block with the cyclic prefix, wherein the block generator uses, as k data symbols that precede the h data symbols at the end of the first data block, a duplicate of k data symbols at an end of a second data block that precedes the first data block. | 09-11-2008 |
| 20080227389 | RADIO COMMUNICATION METHOD, RADIO TRANSMISSION APPARATUS AND RECEIVING APPARATUS - A radio communication method including, generating a first transmit RF signal and a second transmit RF signal from a data signal to be transmitted, each of the first and second transmit RF signals having a power spectrum in symmetric shape in the frequency domain, transmitting the first transmit RF signal and the second transmit RF signal at a different time, receiving the first transmit RF signal and the second transmit RF signal to generate a first received RF signal and a second received RF signal, and reproducing the data signal from the first received RF signal and the second received RF signal. | 09-18-2008 |
| 20080242233 | RADIO TRANSMITTING METHOD AND APPARATUS, AND RADIO RECEIVING METHOD AND APPARATUS - A radio transmitting apparatus includes a storage unit configured to store a plurality of weight sequence sets, which are each assigned to a plurality of transmission blocks sectioned by time axes and frequency axes, by associating the plurality of weight sequence sets with the plurality of transmission blocks, a first selecting unit configured to select one transmission block from the plurality of transmission blocks, a second selecting unit configured to select one weight sequence from one weight sequence set assigned to the one transmission block signal, a converting unit configured to convert a data signal by using the one weight sequence to generate a converted signal, and a transmitting unit configured to transmit the converted signal by using the one transmission block. | 10-02-2008 |
| 20080242321 | RADIO COMMUNICATION SYSTEM, BASE STATION APPARATUS, AND TERMINAL APPARATUS - A base station apparatus includes a first transmission unit configured to transmit area common information common to all base station apparatuses in an area by using not less than one time slot of not less than one common time slot assigned to each of a plurality of areas including a plurality of base station apparatuses, the common time slot being assigned to adjacent areas which are different from each other, a carrier sense unit configured to perform carrier sense on a first time slot except for the common time slot, a selection unit configured to select a second time slot determined as being available by the carrier sense, and a second transmission unit configured to intermittently transmit a control signal unique to the base station apparatus in the second time slot at K (K positive integer) time slot periods. | 10-02-2008 |
| 20090003488 | TRANSMITTER AND RECEIVER - There is provided with a transmitter including: a modulator configured to modulate a data bit sequence by alternately using first and second signal point sets to generate a data symbol sequence; a data block generator configured to generate data blocks each including a plurality of data symbols, an addition unit configured to add a guard interval to each data block to generate data blocks with guard intervals; and a controller configured to control modulation by the modulator so that an end data symbol of a first data block with the guard interval and a head data symbol of a second data block with the guard interval generated following the first data block with the guard interval belong to different signal point sets and data symbols in the first and second data blocks with the guard interval alternately belong to the first and second signal point sets. | 01-01-2009 |
| 20090060090 | TRANSMITTER AND RECEIVER - There is provided with there is provided with a transmitter including: a pilot generation unit configured to generate a plurality of pilot symbols; a bit sequence generation unit configured to invert each bit in a first bit sequence to generate a second bit sequence; a transmission block generation unit configured to generate a transmission block by giving phase rotation determined according a value of each of bits in the first and second bit sequence to each of the pilot symbols corresponding to each of the bits; and a transmission unit configured to transmit the transmission block. | 03-05-2009 |
