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Bit displacement processing method and device based on RS coding blind synchronization

A processing method and codeword synchronization technology, which can be applied to devices dedicated to receivers, transmission modification based on link quality, digital transmission systems, etc., and can solve problems such as low computational efficiency, long shifting process, and slow synchronization process. , to achieve the effect of improving calculation speed, speed and convenience

Active Publication Date: 2022-03-18
SHENZHEN PANGO MICROSYST CO LTD
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  • Claims
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Problems solved by technology

[0013] Based on this, the present invention provides a bit displacement processing method based on RS coding blind synchronization, which solves the problem of long shifting process, long processing time, The problem of slow synchronization process and low computational efficiency

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  • Bit displacement processing method and device based on RS coding blind synchronization
  • Bit displacement processing method and device based on RS coding blind synchronization
  • Bit displacement processing method and device based on RS coding blind synchronization

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Embodiment Construction

[0069] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0070] The terms "first", "second", and "third" in this application are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of indicated technical features. Thus, features defined as "first", "second", and "third" may explicitly or implicitly include at least one of these features. In the description of the present application, "plurality" means at least ...

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Abstract

The invention discloses a bit shift processing method based on RS (Reed-Solomon) coding blind synchronization. The bit shift processing method comprises the following steps of: receiving RS code words by using 66bit parallel data blocks; outputting in a 66bit parallel data block manner, and acquiring an RS code word syndrome; according to the syndrome result, judging whether the currently output bit position has a correct initial position of the RS code word or not; if not, shifting the output position of the 66bit parallel data block; if yes, obtaining the beginning of the next RS code word; and receiving the RS code word and decoding the RS code word. According to the method, the rate of finding the correct code word beginning in the received bit stream is improved, the calculation speed is improved, the calculation period is shortened, and the descrambling and decoding efficiency is greatly improved. The invention further discloses a bit displacement processing device based on RS coding blind synchronization, the structure is simple, the bit displacement processing device can be conveniently realized in finite field multipliers with different bit widths, and circuit integration is facilitated.

Description

technical field [0001] The present invention relates to the technical field of common public radio interface (CPRI, Common public radio interface), in particular to a bit displacement processing method and device based on blind synchronization of RS coding. Background technique [0002] In the CPRI standard, descrambling (descrambler) and decoding (decoder) can only be completed by finding the beginning of the correct codeword from the received bit stream. Different from the IEEE standard and the OTN standard, the CPRI standard does not provide a synchronization header (aligement marker / comma word marker), that is, no known information is added to a specific position, so that in the CPRI standard, it is impossible to use known information before descrambling and decoding. For frame synchronization, it is necessary to rely on the information in Reed-Solomon decoding to confirm whether the synchronization of the current codeword is completed. [0003] The CPRI standard adopts...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L1/00
CPCH04L1/0038H04L1/0057
Inventor 曾智鸣宣学雷
Owner SHENZHEN PANGO MICROSYST CO LTD
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