Wireless communication apparatus and wireless signal generating method

A technology of wireless communication equipment and signals, applied in the direction of shaping network, modulation carrier system, transmission system, etc. in transmitter/receiver

Inactive Publication Date: 2017-11-21
IND TECH RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the use of the frequency band of the 5G system is very different from that of the 4G system, such as the difference in the carrier signal waveform or the carrier spacing, and the different carrier spacing makes the phenomenon of ICI more obvious. Therefore, in order to support both the old and new systems, users often use Accompanied by significantly affected by ICI

Method used

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  • Wireless communication apparatus and wireless signal generating method
  • Wireless communication apparatus and wireless signal generating method
  • Wireless communication apparatus and wireless signal generating method

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Embodiment Construction

[0041] The term "coupled" used throughout the specification of this application (including the claims) can refer to any direct or indirect connection means. For example, if it is described in the text that the processor is coupled to the memory, it should be interpreted as that the processor can be directly connected to the memory, or the processor can be indirectly connected through other devices or some connection means. Connect to the storage. In addition, wherever possible, elements / members / steps with the same reference numbers in the drawings and embodiments represent the same or similar parts. Elements / components / steps using the same reference numerals or using the same terms in different embodiments may refer to related descriptions.

[0042] figure 1 , 2 It is a block diagram of a wireless communication device 1 and a signal modulator 11 of the wireless communication device 1 respectively according to an embodiment of the present disclosure. The wireless communication d...

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Abstract

A wireless communication apparatus and a wireless signal generating method are provided. In one exemplary embodiment, a wireless communication apparatus transmits data by using several sub-carriers. The wireless communication apparatus comprises a signal modulator, a signal processor, a computing processor, and a signal transmitter. The signal modulator converts data into a multi-carrier modulated signal in time domain. The signal processor performs signal processing after configuration. The computing processor performs operations of setting up the window module and the filter module according to a window characteristic function and a filter characteristic function. The window module performs windowing operation on the multi-carrier modulated signal to generate a window-operated signal. The filter module performs filtering operation on the window-operated signal to generate a transmitting signal which is sent by the signal transmitter.

Description

Technical field [0001] The present disclosure relates to a wireless communication device and a wireless signal generation method. Background technique [0002] The 4G communication system adopts Orthogonal Frequency Division Multiplexing (OFDM) modulation technology, which transmits data on multiple subcarriers, so it has the ability to counter channel frequency-selective fading. Furthermore, OFDM is implemented by Fast Fourier Transform / Inverse Fast Fourier Transform (FFT / IFFT), which is computationally efficient. [0003] The above-mentioned OFDM system has the characteristics of slow attenuation of the side wave of the spectrum, which in turn causes Inter-carrier Interference (ICI) between systems on adjacent frequency bands, and ICI is used in Orthogonal Frequency Division Multiple Access (Orthogonal Frequency Division Multiple Access, OFDMA) system will be more significant. In the OFDMA system, a base station configures different resource blocks (Resource Block, RB) to serve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L27/26H04L25/03
CPCH04L25/03012H04L25/03343H04L27/263H04L25/03834H04L27/2626H04L27/26265H04L27/26412H04L5/001H04B1/0475
Inventor 唐明甫苏柏青
Owner IND TECH RES INST
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