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High-speed parallel Turbo decoding method and system in software radio system

A software radio and decoding technology, applied in the field of parallel turbo decoding, to achieve the effect of reducing decoding time, high flexibility, and strong practicability

Active Publication Date: 2012-07-18
因诺微科技(天津)有限公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0008]2) In order to obtain good decoding performance, the interleaver used in Turbo codes is often carefully designed, so the generation method of the interleaving table is relatively relatively High computational complexity (such as the interleaving table design method adopted by WCDMA and LTE)

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  • High-speed parallel Turbo decoding method and system in software radio system

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Embodiment Construction

[0051] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or element must have a particular orientation, be constructed, and operate in a particular orientation should therefore not be construed as limiting the invention.

[0052] In addition, the terms "first" and "second" are used for descriptive purposes only, and should not be understood as indicating or implying relative importance.

[0053] In the description of the present invention, unless otherwise specified and limited, it should be noted that the ...

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Abstract

The invention provides high-speed parallel Turbo decoding method and system in a software radio system. The method comprises the following steps: dividing data to be decoded into M segments, and reordering the data to continuously store the corresponding data at the same positions in the M segments; carrying out iterative decoding on the reordered data to be decoded, comprising the processes of performing parallel component code decoding on the data in the M segments and performing interlacing and de-interlacing on the exchange external information of the two component codes through an interlacing list calculated in advance; and calculating the log likelihood of a system bit, performing symbol judgment, and reordering the judged decoding bit sequences to recover the natural sequence. According to the embodiment of the invention, the high-speed parallel Turbo decoding in the software radio system is realized, the decoding time is greatly reduced and the decoding throughout rate is improved.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a SIMD processor-based parallel turbo decoding method and system in a software radio system. Background technique [0002] In recent years, the emergence of software radio technology has attracted much attention. It breaks through the limitations of poor scalability, single function, and high development cost of traditional communication platforms. It regards hardware as the basic platform of wireless communication, and uses software to realize wireless communication functions as much as possible. The main advantage of software defined radio is its flexibility. In software radio, such as channel bandwidth, modulation and coding, etc. can be dynamically adjusted to adapt to different standards and environments, network communication load and changes in user needs. The main components in the software radio are the radio frequency unit and the baseband processing p...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00H04B1/00H03M13/27
Inventor 缪蔚齐心赵明
Owner 因诺微科技(天津)有限公司
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