Multi-Band Resource Block Grouping for Low-Interference Data Transmission
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Solution Overview
Problem
The 5G NR communication technology's CP-OFDM system is sensitive to frequency and time offsets, leading to inter-band interference, and future 6G systems face challenges in supporting multi-bandwidth channels due to high complexity and inflexible sub-band processing.
Innovation Solution
A data transmission method that divides frequency-domain resource blocks into groups with equal sub-carrier spacings within each group and unequal spacings between groups, allowing for flexible multi-bandwidth support by using different waveform functions for windowing or filtering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If sub-bands of different sub-carrier spacings are separately processed, then processing accuracy is improved, but device complexity increases
Solution Approach 1:
The frequency-domain resource blocks are divided into M groups, where each group contains L(m) resource blocks with equal sub-carrier spacings. This segmentation allows different sub-carrier spacings to be processed separately within groups while reducing overall complexity through unified processing across groups.
Solution Approach 2:
The patent introduces a universal processing approach where waveform functions with different parameters can be used for windowing or filtering across multiple groups. This allows the system to handle multi-bandwidth channels flexibly using a single processing framework, reducing complexity while maintaining accuracy.
2Productivity
If CP-OFDM system is used, then transmission efficiency is improved, but reliability deteriorates due to sensitivity to frequency and time offsets
Solution Approach 1:
The patent applies different waveform functions with different parameters to different groups of frequency-domain resource blocks. This local quality approach allows each group to be optimized for its specific characteristics, reducing sensitivity to frequency and time offsets while maintaining the efficiency of CP-OFDM.
3Adaptability or versatility
If multi-bandwidth channel is supported, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent enables dynamic support for multi-bandwidth channels by allowing the system to flexibly configure which waveform functions to apply to which groups. This dynamic adaptability is achieved through a unified processing framework that can handle different bandwidth configurations without increasing overall system complexity.
Data Source
AI summary
Provided are a data transmission method and apparatus, a storage medium and an electronic device. The method includes: data to be transmitted in N frequency-domain resource blocks is determined; the N frequency-domain resource blocks are divided into M groups of frequency-domain resource blocks in which each group includes L(m) frequency-domain resource blocks, wherein sub-carrier spacings of the L(m) frequency-domain resource blocks in each group are equal, the sub-carrier spacings of adjacent groups are unequal; the data to be transmitted on the L(m) frequency-domain resource blocks in each group of frequency-domain resource blocks is respectively processed to from L(m) groups of data sequences, the L(m) groups of data sequences are processed to form a group of data sequences; and M groups of data sequences of the M groups of frequency-domain resource blocks are processed to form a group of combined data sequences, and the group of combined data sequences is transmitted.