Wireless Device Synchronization Signaling Measurement Gap
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Solution Overview
Problem
High-frequency wireless communication systems, particularly at millimeter wave frequencies, face challenges in synchronization signaling due to the ubiquity of beamforming and small beam sizes, leading to interference and measurement complexities.
Innovation Solution
A method is introduced to manage synchronization signaling by incorporating a gap time interval between communication signaling and synchronization signaling, allowing for synchronized transmission and reception, and enabling accurate measurement and reporting of signal strength and quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beamforming with small beams is used at high frequencies, then communication bandwidth and data rate are improved, but interference between beams increases and measurement accuracy deteriorates
Solution Approach 1:
The patent divides the measurement process into separate time intervals by introducing a measurement gap. The wireless device segments its operations to specifically receive and measure synchronization signals from target transmission sources during designated measurement gaps, isolating the measurement process from ongoing communication activities and reducing interference from beamforming operations.
Solution Approach 2:
The measurement gap acts as an intermediary time interval that mediates between communication signaling and synchronization signal measurement. During this gap period, communication signaling is paused or reduced, allowing the wireless device to focus resources on measuring synchronization signals without interference from active beamforming communication beams.
2Measurement precision
If synchronization signaling is transmitted continuously, then synchronization accuracy is improved, but interference with communication signaling increases
Solution Approach 1:
The patent implements periodic synchronization signal transmission within structured measurement gaps rather than continuous transmission. The synchronization signals are transmitted at specific periodic intervals during designated measurement occasions, allowing the system to maintain synchronization accuracy while minimizing continuous interference with communication signaling.
Solution Approach 2:
The system prepares and schedules measurement gaps in advance, where the wireless device is configured with predetermined time intervals for receiving synchronization signals. This preliminary arrangement allows the device to switch to measurement mode before communication signaling that might cause interference occurs, ensuring accurate synchronization measurement without disrupting communication.
3Reliability
If the wireless device communicates with multiple transmission sources simultaneously, then network coverage and reliability are improved, but measurement complexity and timing synchronization difficulty increase
Solution Approach 1:
The patent segments the measurement process for multiple transmission sources into separate, organized measurement gaps. Each transmission source can be measured during specific designated intervals, and the wireless device can report measurements for different sources in an structured manner, reducing the complexity of simultaneous multi-source measurements while maintaining network reliability.
Data Source
AI summary
A method of operating a wireless device in a wireless communication network. The wireless device is configured for communicating with a first transmission source, and for receiving synchronisation signaling from a second transmission source, wherein communicating with the first transmission source is based on a gap time interval between communication signaling and synchronisation signaling associated to the first transmission source. The disclosure also pertains to related devices and methods.