Patent
Wireless base station, user terminal, wireless communication method, and wireless communication system
TLDR
In this article, a radio base station is designed to reduce the interference against predetermined signals in a radio communication system in which FTN is used, and a control section executes control so that signals are time-division-multiplexed over a first radio resource region where symbols are multiplexed at a rate equal to or below a Nyquist rate.Abstract:
The present invention is designed to reduce the interference against predetermined signals in a radio communication system in which FTN is used. A radio base station (10) according to one aspect of the present invention is a radio base station that communicates with a user terminal (20), and has a control section (501) that executes control so that signals are time-division-multiplexed over a first radio resource region where symbols are multiplexed at a rate equal to or below a Nyquist rate and a second radio resource region where symbols are multiplexed at a faster rate than the Nyquist rate, and a transmission section (103) that transmits the signals that are time-division-multiplexed in the first radio resource region and the second radio resource region, to the user terminal.read more
Citations
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Patent
Terminal device, base station device, and communication method
TL;DR: In this article, a first UL-DL configuration configured by using a common RRC message is set; an antenna port for one enhanced physical downlink control channel in a subframe is set based on whether or not the subframe was a predetermined special subframe in the first ULDL configuration.
Patent
Radio base station, user terminal, radio communication system and radio communication method
TL;DR: In this paper, a radio base station that transmits downlink control information for a user terminal by using an enhanced downlink channel that is frequency-division-multiplexed with a downlink shared data channel is designed to make it possible to adequately form the search space candidates to be used in the blind decoding of downlink information when the radio resource region for downlink channels is expanded.
Patent
Terminal device and base station device
TL;DR: In this article, a reference signal generation module that configures a repetition factor (RF) of the reference signal based on a signal which is notified by a base station is presented.
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Wireless base station, user terminal, and wireless communication method
TL;DR: In this article, a wireless base station which uses a plurality of component carriers to communicate with user terminals is provided with: a setting unit which sets, in the component carriers, first carrier-type subframes capable of being received respectively by the plurality of user terminals having different capabilities, and second carrier-termed subframe capable of receiving by a portion of the user terminals; and a transmitting unit which uses the first carrier type and the second carrier type to transmit downlink signals to the users.
Patent
User device and base station
TL;DR: In this paper, the authors proposed a method for reducing the flashlight effect in 3D MIMO systems by using a measurement unit that measures the received quality levels of reference signals transmitted via the respective directional beams in the received interfering-beam-candidate list.
References
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Proceedings ArticleDOI
Non-Orthogonal Multiple Access (NOMA) for Cellular Future Radio Access
TL;DR: It is shown that the downlink NOMA with SIC improves both the capacity and cell-edge user throughput performance irrespective of the availability of the frequency-selective channel quality indicator (CQI) on the base station side.
Patent
Method and apparatus for providing channel state information-reference signal (csi-rs) configuration information in a wireless communication system supporting multiple antennas
TL;DR: In this paper, a method and apparatus for transmitting and receiving a CSI-Reference Signal (CSI-RS) in a wireless communication system supporting multiple antennas is described, which includes transmitting, at a base station, information of one or more CSI-RS configurations to a mobile station.
Proceedings ArticleDOI
Non-Orthogonal Access with Random Beamforming and Intra-Beam SIC for Cellular MIMO Downlink
TL;DR: Simulation results show that the proposed non-orthogonal access scheme with random beamforming and the intra-beam SIC simultaneously achieves better sum and cell-edge user throughput compared to orthogonalAccess, which is assumed in LTE-Advanced.
Patent
Receiver, transmitter and radio communication method
TL;DR: In this paper, a mobile station includes: a physical channel segmentation unit to receive radio signals including multiple orthogonal signals which are orthogonality to each other, and multiple non-orthogonal messages which are not orthogonomically to each another; and data demodulating/decoding units to extract the non-orogonal signal addressed to the mobile station from the multiple nonorogonomous signals by demodulation and cancelling the radio signal addressed by another mobile station by use of the orthogono-nodes.
Journal ArticleDOI
Multicarrier Faster-Than-Nyquist Transceivers: Hardware Architecture and Performance Analysis
TL;DR: From the hardware resource usage numbers it can be concluded that FTN signaling can be used to achieve higher bandwidth efficiency with acceptable complexity overhead.