Abstract:
An STBC/SFBC-based signal transmission method and apparatus is provided for use in a multi-carrier system. A method for a transmitter to transmit a signal to a receiver in a diversity transmission mode according to the present invention includes transmitting a filter index indicating a filter allocated to the receiver and transmitting Space Time Block Code (STBC) symbols to the receiver at symbol positions selected based on the filter index.
Abstract:
The present disclosure relates to a 5G or pre-5G communication system to be provided to support a higher data transmission rate since 4G communication systems like LTE. The present disclosure relates to a method for providing control information for different services of a base station. A method of a first terminal includes: receiving control information; identifying a control channel for the first terminal based on the control information; and decoding information received in the control channel for the first terminal based on superposition transmission related information included in the control information.
Abstract:
A method for signal transmission includes determining whether to perform repeated transmissions for a time length of a multiplication of L and M or more, wherein L indicates the overlapping factor of the system and M indicates a number of quadrature amplitude modulation (QAM) filter bank multi-carrier (FBMC) symbols, determining information on a type of the repeated transmissions to be performed, and transmitting FBMC symbols using a transmit power determined based on the type of the repeated transmissions. A base station includes a transceiver unit to send and receive signals, a control unit configured to determine whether to perform repeated transmissions for a time length of a multiplication of L and M or more, determine information on a type of the repeated transmissions to be performed, and transmit FBMC symbols using a transmit power determined based on the type of the repeated transmissions.
Abstract:
This disclosure relates to a 5G or pre-5G communication system to be provided for supporting higher data transfer rate following a 4G communication system such as LTE. To accomplish the objective mentioned above, a method for transmitting and receiving a signal at a terminal in the mobile communication system according to one embodiment of the present application comprises the steps of: receiving, from a base station, a reference signal generated on the basis of a first filter; determining channel information on the basis of the received reference signal; transmitting the determined channel information to the base station; receiving, from the base station, information related to a second filter determined on the basis of the channel information; and receiving, from the base station, a data signal on the basis of the second filter. According to an embodiment of the present application, it is possible to maximize the signal-to-interference-plus-noise ratio (SINR) while minimizing spectral interference in the event of multiuser connection, by using a prototype filter application method and system structure.
Abstract:
A method for signal transmission includes determining whether to perform repeated transmissions for a time length of a multiplication of L and M or more, wherein L indicates the overlapping factor of the system and M indicates a number of quadrature amplitude modulation (QAM) filter bank multi-carrier (FBMC) symbols, determining information on a type of the repeated transmissions to be performed, and transmitting FBMC symbols using a transmit power determined based on the type of the repeated transmissions. A base station includes a transceiver unit to send and receive signals, a control unit configured to determine whether to perform repeated transmissions for a time length of a multiplication of L and M or more, determine information on a type of the repeated transmissions to be performed, and transmit FBMC symbols using a transmit power determined based on the type of the repeated transmissions.
Abstract:
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE).A packet transmission method and apparatus for use in a wireless communication system and, in particular, for transmitting packets in a filter bank-based multicarrier wireless communication system. The packet transmission method for use in a wireless communication system based on Filter Bank-based Multi-Carrier (FBMC) includes generating an Offset Quadrature Amplitude Modulation (OQAM) symbol by extracting a transmission data period from data blocks obtained by repeating a transmission data as many times as an overlapping factor, performing Inverse Fast Fourier Transform (IFFT) on the OQAM symbol, shifting, when the overlapping factor is an even number, the IFFT-ed symbol cyclically, filtering the cyclically shifted symbol with a shortened compensation filter, and transmitting the filtered symbol in an overlapped OQAM signal.