NTN Cell Frequency and PCI Allocation for 5G NR
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Solution Overview
Problem
Current 5G New Radio (NR) technologies do not effectively address communication performance issues in non-terrestrial communication networks due to high signal transmission delays and lack of dedicated frequency allocation for Non-Terrestrial Network (NTN) cells, affecting cell selection and reselection processes.
Innovation Solution
Allocate dedicated frequency bands and Physical Cell Identifiers (PCIs) to NTN cells and notify User Equipment (UE) of these allocations to improve communication performance by optimizing frequency and PCI management in non-terrestrial environments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If 5G NR technologies are applied to non-terrestrial communication networks using existing terrestrial protocols, then deployment can proceed with current standards, but communication performance deteriorates due to high signal transmission delays and lack of dedicated frequency allocation
Solution Approach 1:
The patent applies local quality by allocating dedicated frequency bands and PCIs specifically for NTN cells, distinguishing them from terrestrial cells. This localized differentiation ensures that NTN communications receive specialized resources optimized for their unique high-delay characteristics, thereby improving communication reliability without compromising terrestrial network performance.
Solution Approach 2:
The patent changes key parameters by introducing dedicated frequency band allocations and PCI assignments for NTN cells. These parameter modifications enable the network to accommodate the specific transmission characteristics of non-terrestrial environments, resolving the contradiction between standard compatibility and communication performance.
2Measurement precision
If dedicated frequency bands and PCIs are allocated to NTN cells, then measurement precision and cell selection accuracy improve, but frequency resource management complexity increases
Solution Approach 1:
The patent segments the frequency spectrum by designating specific frequency bands exclusively for NTN cells, separate from terrestrial cell frequencies. This segmentation eliminates measurement confusion and interference between terrestrial and non-terrestrial cells, improving measurement precision while organizing frequency resources in a structured manner that manageable complexity.
Solution Approach 2:
The patent extracts dedicated PCIs and frequency bands from the shared terrestrial resources and assigns them specifically to NTN cells. This extraction creates distinct resource pools that simplify resource management by separating NTN-specific allocations from general terrestrial network resources, thereby improving measurement accuracy without proportionally increasing overall management complexity.
Data Source
AI summary
An information processing method provided in the present disclosure includes: allocating, to a Non-Terrestrial Network (NTN) cell, at least one of a frequency band dedicated to the NTN cell, a frequency dedicated to the NTN cell, and a Physical Cell Identifier (PCI) dedicated to the NTN cell; notifying User Equipment (UE) of at least one of the following information: a frequency band indicator of the frequency band, the frequency, and the PCI.