Cell Reselection Using Frequency and Network Slice Priority
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Solution Overview
Problem
In 5G wireless communication systems, terminals often experience poor communication quality due to selecting cells that do not provide the required network slice, leading to frequent cell reselection and inefficient resource allocation.
Innovation Solution
A method where terminals receive and utilize priority information about frequency points and network slices supported by them to perform cell reselection, ensuring that the selected cell can provide the necessary network slice and improve communication quality by prioritizing cells with higher signal quality and compatible network slice support.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If terminal performs cell reselection based on position during movement, then terminal can maintain connection with network, but terminal may select cell that cannot provide required network slice resulting in poor communication quality
Solution Approach 1:
The base station pre-configures priority information for frequency points combined with network slice identifiers before the terminal performs cell reselection. This preliminary configuration enables the terminal to proactively select cells that support the required network slice, preventing the problem of selecting incompatible cells during movement.
Solution Approach 2:
The system implements feedback by having the terminal report its required network slice information to the base station. The base station then provides targeted priority information based on this feedback, enabling the terminal to make informed cell reselection decisions that ensure network slice compatibility while maintaining connection reliability.
2Adaptability or versatility
If terminal frequently performs cell reselection due to network slice requirements, then terminal can attempt to find suitable network slice, but communication efficiency deteriorates and resource allocation becomes inefficient
Solution Approach 1:
Priority information combining frequency point and network slice is pre-configured by the base station before the terminal needs to perform cell reselection. This allows the terminal to directly select a suitable cell in one step rather than frequently reselecting, thereby maintaining network slice compatibility while avoiding the efficiency loss from repeated reselection operations.
3Speed
If terminal selects cell based on signal quality only, then connection can be established quickly, but selected cell may not support required network slice
Solution Approach 1:
The patent merges frequency point information with network slice identifier information to create combined priority information. This combination allows the terminal to simultaneously consider both signal quality (through frequency point) and network slice compatibility (through slice identifier) in a single cell selection operation, achieving both speed and adaptability.
Data Source
AI summary
Provided are a cell reselection method and apparatus, an information transmission method and apparatus, a communication device, and a storage medium. The cell reselection method is applied to a terminal, and comprises: receiving first priority information of a frequency point and a network slice combination supported by the frequency point; and performing cell reselection according to the first priority information.