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Coding method and device

A coding method and polar coding technology, applied in the field of coding methods and devices, can solve problems such as error floor and inability to achieve high spectral efficiency, and achieve the effect of low complexity, low complexity and high spectral efficiency

Inactive Publication Date: 2018-07-10
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Embodiments of the present invention provide an encoding method and device to at least solve the problem of the error floor phenomenon and the inability to achieve high spectral efficiency in the encoding and modulation system in the related art

Method used

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Experimental program
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Embodiment 1

[0055] The technical solution in this application document can be applied to a mobile communication network (including but not limited to a 5G mobile communication network, or a 4G LTE network), and the network architecture of the network can be a sending end device and a receiving end device, specifically a base station Or terminal etc. This embodiment provides an encoding method that can run on the above-mentioned network architecture. It should be noted that the operating environment of the encoding method provided in the embodiment of the present application is not limited to the above-mentioned network architecture.

[0056] Figure 4 is a flowchart of an encoding method according to an embodiment of the present invention, such as Figure 4 As shown, the process includes the following steps:

[0057] Step S402, the sending end device polarizes the information bit sequence to obtain a polarized coded bit sequence;

[0058] Step S404, the sending end device generates a s...

Embodiment 2

[0154] An encoding device is also provided in this embodiment, and the device is used to realize the above-mentioned embodiments and preferred implementation manners, and what has been described will not be repeated here. As used below, the term "module" may be a combination of software and / or hardware that realizes a predetermined function. Although the devices described in the following embodiments are preferably implemented in software, implementations in hardware, or a combination of software and hardware are also possible and contemplated.

[0155] According to another embodiment of the present invention, an encoding device is also provided, which is applied to a sending device, and the device includes the following modules:

[0156] An encoding module, configured to polarize the information bit sequence to obtain a polarized encoded bit sequence;

[0157] The first obtaining module is configured to generate a scrambled bit sequence, and superimpose the scrambled bit seq...

Embodiment 3

[0166] According to still another embodiment of the present invention, a storage medium is also provided. The storage medium is configured to store program code for performing the following steps:

[0167] The embodiment of the invention also provides a storage medium. Optionally, in this embodiment, the above-mentioned storage medium may be configured to store program codes for performing the following steps:

[0168] S1, the sending end device polarizes the information bit sequence to obtain the polarized coded bit sequence;

[0169] S2. The sending end device generates a scrambled bit sequence, and superimposes the scrambled bit sequence with the polar-encoded bit sequence to obtain a bit sequence to be transmitted;

[0170] S3. The sending end device maps the bit sequence to be transmitted into a modulation symbol sequence to be transmitted according to a preset modulation mode;

[0171] S4. Send the to-be-transmitted modulation symbol sequence to the receiving end devi...

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Abstract

The invention provides a coding method and device. The coding method comprises steps: a transmitting end device superposes a scrambling code bit sequence with a bit sequence after polarization codingto obtain a to-be-transmitted bit sequence; the transmitting end device modulates and maps the to-be-transmitted bit sequence according to a preset modulation mode to obtain to-be-transmitted signals;and the signals are transmitted. By adopting the above technical scheme, the traditional coding modulation scheme is applied to the polarization coding system; as the polarization code itself is extremely low in coding and decoding complexity, the transmitted signals have low complexity, the non-error floor characteristics of the polarization code solve the error floor problem existing in the coding modulation system in a related technology, the above technical scheme introduces polarization mapping in the polarization coding modulation, the system performance is further enhanced, and the high spectral efficiency is realized.

Description

technical field [0001] The present invention relates to the communication field, in particular, to an encoding method and device. Background technique [0002] figure 1 It is an overall framework diagram of Turbo code coding and modulation in an LTE system according to related technologies, such as figure 1 As shown, the process includes processes such as cyclic redundancy check (Cyclic Redundancy Check, CRC for short), Turbo encoding and decoding, rate adaptation, and modulation and demodulation. [0003] The sending end device first attaches the CRC check bit according to the LTE protocol, and then uses Turbo code encoding. Then, rate adaptation is performed according to system design requirements, and then the obtained transmission bit sequence is modulated and mapped to constellation symbols. Finally, the obtained symbol sequence is input into the channel for transmission. At the receiving end device, demodulation is first performed to obtain the bit sequence soft in...

Claims

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Application Information

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IPC IPC(8): H04L1/00H04L27/34
CPCH04L1/0056H04L1/0057H04L1/0061H04L1/0071H04L1/0076H04L27/3416H04L27/3483
Inventor 许进徐俊牛凯
Owner ZTE CORP
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