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Generalized multi-carrier radio transmission scheme for supporting multi-antenna transmission

A multi-antenna transmission and wireless transmission technology, applied in radio transmission systems, transmission systems, modulated carrier systems, etc., can solve the problems of sensitivity to frequency offset, peak-to-average ratio, etc.

Inactive Publication Date: 2005-11-09
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it has disadvantages such as high peak-to-average ratio and sensitivity to frequency offset

Method used

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  • Generalized multi-carrier radio transmission scheme for supporting multi-antenna transmission
  • Generalized multi-carrier radio transmission scheme for supporting multi-antenna transmission
  • Generalized multi-carrier radio transmission scheme for supporting multi-antenna transmission

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Embodiment Construction

[0039] The generalized multi-carrier wireless transmission technology scheme supporting multi-antenna transmission is described as:

[0040] (1). The system can work in basic mode and extended mode. In basic mode, the total bandwidth can be set to B w The channel is decomposed into a group of parallel basic subcarriers with a 3dB bandwidth of 1.28MHz (or other values), and multi-carrier combination and splitting are performed through a multi-carrier filter bank. The multi-carrier filter bank can be used through discrete Fourier transform (DFT) Fast implementation; in the extended mode, adjacent basic subcarriers can be synthesized into extended subcarriers with a bandwidth of 3.84MHz (or other values), and different extended subcarriers can be flexibly allocated according to the spectrum allocation of different countries in the future , and can realize coexistence and backward compatibility with the third generation mobile communication (3G) system.

[0041] (2). In each sub...

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PUM

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Abstract

A high speed wireless communication transmission technology of a generalized multi-carrier wireless transmission plan supporting multi-antenna transmission includes: 1, multi-carrier wireless transmission is to divide a channel into a set of parallel broadband sub-channels, the T-R end carries out merge and shunt of the sub-carries signals by a multi-carrier filter set, which quickly realizes it by the discrete Fourier transform, b, transmission of each sub-carrier applies an adaptive or a fixed double circular time slot structure, a circular orthogonal sequence pilot, high efficient encode and modulation and multi-antenna transmission technology to support high efficient packet data transmission, c, applying FD duplex or TD duplex to suite the WA cover and hot spot cover cellular communication environment, d, applying a mixed MA way of FDMA, TDMA and CDMA to share wireless resource and support the requirement of large dynamic sphere transmission.

Description

technical field [0001] The invention is a wireless transmission system solution, which belongs to the technical field of high-speed wireless communication transmission. Background technique [0002] In order to meet the needs of future development, the future mobile communication system must be able to support high-speed data transmission, high terminal mobility and high transmission quality, provide high spectrum utilization and power efficiency, and effectively support user data rate and user capacity. Large dynamic range changes in aspects such as service quality and mobile speed require reliable high-speed data transmission with a data rate of tens of megabits per second (bit per second) or even hundreds of megabits per second on a wireless channel. Therefore, future mobile communication systems The distributed access method will be adopted in the air interface, and the multi-antenna technology (MIMO) technology plays a vital role, and the multi-carrier parallel transmis...

Claims

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Application Information

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IPC IPC(8): H04L27/26
CPCY02B60/50Y02D30/70H04B7/0413H04L27/2626H04L27/2647H04L25/025H04L27/2614H04L5/14H04J2011/0003
Inventor 高西奇尤肖虎潘志文江彬王向阳
Owner SOUTHEAST UNIV
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