FBMC-OQAM timing and channel estimation training sequence design method

A technique of training sequence and channel estimation, which is applied in the field of FBMC-OQAM timing and channel estimation training sequence design, and can solve problems such as difficulty in channel coefficient estimation
CN110213191AActive Publication Date: 2019-09-06HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
HARBIN INST OF TECH SHENZHEN GRADUATE SCHOOL
Publication Date
2019-09-06

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Abstract

The invention discloses an FBMC-OQAM timing and channel estimation training sequence design method and system, and relates to the field of wireless communication. The training sequence is composed ofthree continuous FBMC symbols and comprises two auxiliary data symbols and a pilot symbol located between the two auxiliary data symbols. The working subcarrier modulation data of odd or even serial number bits of the pilot symbol is set to be zero. Working subcarrier modulation data corresponding to odd and even serial number bits of two auxiliary data symbols are the same or opposite to each other, so that a sequence with a conjugate symmetry characteristic in a time domain is constructed, and a timing synchronization function can be completed through the conjugate symmetry characteristic ofthe sequence. Besides, by utilizing the symmetry characteristic of imaginary part interference in the FBMC-OQAM system on a time-frequency plane, the training sequence not only can be used for symboltiming synchronization, but also can be used for frequency domain channel estimation after filtering of the FBMC-OQAM system.
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Description

technical field

[0001] The invention relates to the field of wireless communication, in particular to a FBMC-OQAM timing and channel estimation training sequence design method. Background technique

[0002] In recent years, multi-carrier modulation as a communication waveform technology has been widely used in various communication systems. The basic idea is to divide the transmission bit stream into multiple sub-bit streams, and then modulate them on different sub-carriers for transmission. Among the many multi-carrier modulation techniques, Orthogonal Frequency Division Multiplexing (OFDM, Orthogonal Frequency Division Multiplexing) has been widely used because of its high spectral efficiency, low transceiver complexity, simple equalization and easy combination with multi-antenna technology. , such as today's fourth-generation mobile communication Long Term Evolution (LTE, Long Term Evolution) system, digital television broadcasting (DVB, Digital Video Broadcast), wireless...

Claims

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