Wireless Device Measurement Reporting for Beam Management
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Solution Overview
Problem
High-frequency wireless communication systems face challenges in beam management and measurement reporting, particularly in millimeter wave communications above 52.6 GHz, where beamforming and multiple TRPs complicate simultaneous communication links, leading to issues with signal strength and quality.
Innovation Solution
A method for wireless devices and network nodes to transmit and receive measurement reports associated with reference signaling, allowing for improved beam management by initiating quick random access and early reporting, using DFT-s-OFDM waveforms and Single-Carrier based waveforms, and facilitating beam selection and switching based on signal strength and quality measurements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If beamforming and multiple TRPs are used for high-frequency communication, then communication bandwidth and coverage are improved, but beam management complexity and measurement reporting overhead increase
Solution Approach 1:
The patent segments the measurement reporting process by introducing separate reporting mechanisms for different beam types (wide beams vs. narrow beams). The wireless device performs measurements on wide beams first during random access, then on narrow beams after connection establishment. This segmentation reduces the overall complexity by dividing the measurement task into manageable stages rather than requiring simultaneous management of all beams.
Solution Approach 2:
The patent applies preliminary action by having the wireless device perform measurements on wide beams during the random access phase before actual data transmission begins. This preliminary measurement allows the network to establish initial beam pairs and configure narrow beam measurements in advance, avoiding the need to manage all beam measurements simultaneously during active communication.
2Measurement precision
If measurements are performed on multiple reference signals, then beam selection accuracy is improved, but measurement time and signaling overhead increase
Solution Approach 1:
The patent implements periodic action by structuring measurements in distinct phases: first measuring wide beams during random access, then measuring narrow beams after connection establishment. This periodic, phased approach allows the system to achieve high measurement precision through multiple measurement stages without requiring all measurements to occur simultaneously, thus reducing the perceived measurement time and signaling overhead.
Solution Approach 2:
By performing wide beam measurements preliminarily during random access before narrow beam measurements, the system establishes a foundation for accurate beam selection without delaying the overall connection process. The preliminary wide beam measurements provide initial beam pair information that guides subsequent narrow beam measurements, achieving high precision efficiently.
3Use of energy by moving object
If DFT-s-OFDM waveform is used for random access, then power amplifier efficiency is improved, but waveform flexibility and adaptability decrease
Solution Approach 1:
The patent applies local quality by using DFT-s-OFDM waveform specifically for the random access phase where power amplifier efficiency is critical, while allowing other waveforms to be used for subsequent data transmission phases. This localized application of waveform types optimizes power amplifier performance during the energy-sensitive random access phase without sacrificing overall system flexibility for different communication scenarios.
Data Source
AI summary
There is disclosed a method of operating a wireless device in a wireless communication network. The method includes transmitting, in a random access message associated to first reference signaling, a measurement report pertaining to second reference signaling. The disclosure also pertains to related devices and methods.