What is the main coding scheme used for control channels in 5g embb scenarios?

5g The main coding scheme used for the control channel in the embb scenario is Polar; Polar code is a forward error correction coding method used for signal transmission. It is a coding scheme that utilizes channel polarization. In theory It has been proven that the capacity is close to the symmetric "B-DMC", used for control channels, and has outstanding coding performance for small packet services.

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5g What is the main coding scheme used for the control channel in the embb scenario?

5g The main coding scheme used for the control channel in the embb scenario is Polar code.

LDPC is used for business channels, with good performance and low complexity. Through parallel computing, it has good support for high-speed services; Polar code is used for control channels and has outstanding coding performance for small packet services

Polar code is a coding scheme that utilizes channel polarization and has been theoretically proven to be close to the capacity of symmetric B-DMC

Polar code (English: Polar code) is a forward error correction coding method for signal transmission.

The core of the construction is through channel polarization processing. Methods are used on the encoding side to make each sub-channel show different reliability. When the code length continues to increase, some channels will tend to have a capacity close to A perfect channel (no errors) with a capacity close to 1. The other part of the channel tends to be a pure noise channel with a capacity close to 0. Choosing to directly transmit information on a channel with a capacity close to 1 to approximate the channel capacity is the only method that can be rigorously proven to achieve Shannon Extreme method.

A brief introduction to polar code

Polar code (English: Polar code) is a kind of forward error correction Coding method used for signal transmission.

The core of the construction is through channel polarization processing. Methods are used on the encoding side to make each sub-channel show different reliability. When the code length continues to increase, some channels will tend to have a capacity close to A perfect channel (no errors) with a capacity close to 1. The other part of the channel tends to be a pure noise channel with a capacity close to 0. Choosing to directly transmit information on a channel with a capacity close to 1 to approximate the channel capacity is the only method that can be rigorously proven to achieve Shannon Extreme method.

On the decoding side, the polarized channel can be decoded using a simple successive interference cancellation method to obtain performance similar to maximum likelihood decoding with lower complexity.

In 2008 at the International Information Theory ISIT Conference, Professor Erdal Arıkan of Bilkent University in Turkey first proposed the concept of channel polarization. Based on this theory, he gave the human The first known channel coding method that can be rigorously proven to achieve channel capacity, and named polar code

Main functions of Polar code

Polar Codes is a new encoding method and a candidate encoding technology solution in the formulation of 3GPP standards. Through the performance test of Huawei's polar code test prototype in stationary and moving scenarios, it is aimed at short code lengths and In both long code length scenarios, under the same channel conditions, compared to Turbo codes, a packet error rate performance gain of 0.3 to 0.6dB can be obtained. At the same time, Huawei also tested the combination of polar codes and high-frequency band communications to achieve 20Gbps The above data transmission rate verifies that polar codes can effectively support the three major application scenarios defined by the ITU.

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