Beam Tracking for Periodic UE Movement
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless communication systems face inefficiencies in beam tracking for periodic user equipment movement, leading to increased overhead signaling and reduced system operation efficiency, particularly in industrial IoT settings where UEs have repetitive motion patterns.
Innovation Solution
The system identifies a sequence of beamforming parameters by measuring and reporting reference signals from downlink transmission beams, allowing for deterministic tracking of periodic UE movement with reduced reference signal transmissions and overhead signaling through the use of Transmission Configuration Indicator (TCI) states.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional beam tracking procedures are used for periodic UE movement, then beam tracking can be achieved, but signaling overhead increases and system efficiency decreases
Solution Approach 1:
The patent applies preliminary action by having the UE measure and report reference signals in advance during a first time period, allowing the base station to determine TCI states before the second time period begins. This pre-computation of beamforming parameters eliminates the need for continuous signaling during periodic movements, reducing overhead while maintaining tracking accuracy.
Solution Approach 2:
The patent uses copying by having the UE store previously measured beam parameters and TCI states, then reuse these stored parameters for subsequent periodic movements. Instead of重新 measuring and signaling every time, the system copies and applies the stored beamforming parameters to track periodic UE movement, significantly reducing signaling overhead.
2Device complexity
If reference signal transmissions are reduced for beam tracking, then signaling overhead decreases, but measurement precision may be affected
Solution Approach 1:
The patent performs comprehensive reference signal measurements and beam parameter determination in advance during the first time period. By completing all necessary measurements before the second time period, the system eliminates the need for continuous reference signal transmissions during periodic movements, reducing overhead while preserving measurement precision through the initial comprehensive measurement campaign.
Solution Approach 2:
The UE performs self-service by autonomously measuring reference signals, determining beam parameters, and storing TCI states without requiring continuous base station intervention or signaling. This self-contained measurement and parameter determination process reduces the need for ongoing reference signal transmissions while maintaining measurement accuracy.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Methods, systems, and devices for wireless communications are described techniques provide for the identification of a sequence of beamforming parameters that are used for communications between a user equipment (UE) and a base station using a sequence of transmission beams. A UE may measure received reference signals that are transmitted in a series of downlink transmission beams from a base station, and report measurement parameters associated with the downlink transmission beams to the base station as part of a beam tracking and beam refinement procedure. The base station may provide transmission configuration indicator (TCI) states that are associated with each transmission beam. The TCI states may be recorded over a course of a periodic movement of the UE, and may be used deterministically to identify beamforming parameters for transmission and reception of a subsequent series of downlink transmission beams when the UE makes a subsequent same periodic movement.