Wireless Terminal Synchronization and Beam Tracking Interworking
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Solution Overview
Problem
In 5G wireless communication systems, the interworking between synchronization tracking and beam tracking is not effectively managed, leading to potential synchronization failures and suboptimal beam selection, especially in mmWave bands where path loss is significant and mobility requires continuous channel changes.
Innovation Solution
A terminal with a processor and transceiver is configured to acquire and update synchronization information of serving and neighboring beams, determine channel quality, and adjust the serving beam accordingly, enabling efficient interworking between synchronization tracking and beam tracking to manage synchronization and mobility effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If synchronization tracking uses only the serving beam, then synchronization management is simplified, but beam tracking for mobility cannot be performed smoothly
Solution Approach 1:
The patent applies universality by enabling the synchronization tracking function to work with multiple beams (serving beam and other beams) rather than being restricted to a single beam. This allows the same synchronization mechanism to serve both synchronization management and beam tracking purposes, resolving the contradiction between simplification and adaptability.
2Adaptability or versatility
If beam tracking uses other beams in addition to serving beam, then mobility tracking is improved, but synchronization failure may occur
Solution Approach 1:
The patent implements feedback mechanisms where the terminal monitors synchronization status when performing beam tracking with multiple beams. Based on this feedback, the terminal can adjust its beam selection and synchronization tracking strategy to maintain synchronization reliability while benefiting from enhanced beam tracking capability.
Solution Approach 2:
The patent applies preliminary action by performing synchronization acquisition and tracking before beam tracking operations. This ensures that synchronization is established and maintained as a foundation before utilizing multiple beams for mobility tracking, preventing synchronization failures.
3Measurement precision
If synchronization tracking and beam tracking are performed independently, then each function is optimized, but interworking efficiency is reduced
Solution Approach 1:
The patent merges synchronization tracking and beam tracking into an integrated process where the terminal performs both functions simultaneously using the same beam measurement and evaluation mechanisms. This combination maintains the precision of independent tracking while significantly improving interworking efficiency by eliminating redundant operations.
Data Source
AI summary
The present disclosure relates to a pre-5th-Generation (5G) or 5G communication system to be provided for supporting higher data rates Beyond 4th-Generation (4G) communication system such as Long Term Evolution (LTE). A terminal and method of the terminal in a wireless communication system are provided. The terminal includes at least one transceiver and at least one processor operatively connected to the at least one transceiver. The at least one processor is configured to acquire synchronization information of a first beam which is a serving beam, update the synchronization information based on the first beam or at least one second beam, determine at least one channel quality of the at least one second beam based on the updated synchronization information, and update the serving beam based on the at least one channel quality.