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Device, method and system for scrambling wireless transmissions

A scrambler and scrambling sequence technology, applied in the field of wireless transmission, can solve the problem that the scrambling code is not effective

Active Publication Date: 2019-11-05
INTEL CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In some cases, for example, a scrambling code may not be effective if it produces a sequence of all zeros, all ones, or other undesired sequences

Method used

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  • Device, method and system for scrambling wireless transmissions
  • Device, method and system for scrambling wireless transmissions
  • Device, method and system for scrambling wireless transmissions

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0177] Example 1 includes a wireless communication unit including: a selector that selects a selected scrambling seed based on the number of codewords in a packet to be transmitted by the wireless communication unit; and a scrambler based on The periodic sequence of scrambled bits is used to scramble the grouped bits, and a sequence of scrambled bits is generated according to the selected scrambling seed.

example 2

[0178] Example 2 includes the subject matter of Example 1, and optionally, wherein the grouped codeword includes a first plurality of scrambling bits followed by a second plurality of re-scrambling bits, and the first plurality of scrambling bits includes A plurality of information bits scrambled by the scrambling bits of the bit sequence, the second plurality of re-scrambling bits includes the first plurality of scrambling a pre-defined re-scrambling sequence generated by a pre-defined re-scrambling seed Scrambling bits.

example 3

[0179] Example 3 includes the subject matter of Example 2, and optionally, wherein the sequence of scrambling bits includes a plurality of subsequences of scrambling bits, each subsequence of scrambling bits is applied to a corresponding codeword of the codeword, and wherein The subsequence of each scrambling bit is different from the pre-defined re-scrambling sequence.

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PUM

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Abstract

Some demonstrative embodiments include devices, systems, and methods for scrambling wireless transmissions. For example, a device may include a selector that selects a selected scrambling seed based on the number of codewords in the packet to be transmitted; and a scrambler that uses a periodic sequence of scrambling bits to The grouped bits are scrambled to generate a sequence of scrambled bits according to the selected scrambling seed.

Description

Technical field [0001] The embodiments described herein generally relate to wireless transmission. Background technique [0002] In some wireless communication networks, scrambling may be used, for example, to increase peak-to-average power ratio (PAPR), and / or reduce frequency domain spurs. [0003] The wireless communication device may include a scrambler that uses a scrambling code to scramble the frame. The scrambling code can be randomly selected for each frame transmission. [0004] In some situations, for example, if the scrambling code produces a sequence of all zeros, all ones, or other undesirable sequences, the scrambling code may not be effective. Summary of the invention [0005] According to an aspect of the present invention, there is provided a wireless communication unit, including: [0006] A selector that selects the selected scrambling seed based on the number of codewords in the packet to be transmitted by the wireless communication unit; and [0007] A scrambler,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L25/03H04L1/00H04L27/26
CPCH04L25/03866H04L1/0057H04L23/00H04L25/03
Inventor A·斯维尔德洛夫T·哈雷尔M·格诺萨尔
Owner INTEL CORP