Beam Synchronization via Priority Feedback and Timers
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Solution Overview
Problem
Beam forming in communications systems often results in miscommunication between transmitting and receiving devices regarding beam changes, leading to temporary loss of service due to unsynchronized switching or interference, necessitating time-consuming radio connection reestablishment.
Innovation Solution
Implement a method where user equipment devices measure and rank antenna beams based on signal strength and quality, reporting priority information to the base station, which switches beams predictably using timers and confirmation signals to minimize service disruptions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If beam forming is used to concentrate transmission power, then transmission efficiency is improved, but miscommunication between transmitting and receiving devices regarding beam changes occurs leading to service disruption
Solution Approach 1:
The patent implements feedback mechanisms where the receiving device sends beam confirmation signals to the transmitting device to verify beam changes. This feedback loop ensures both devices have synchronized understanding of the active beam, preventing miscommunication while maintaining the efficiency benefits of beam forming.
Solution Approach 2:
The patent uses prediction algorithms that anticipate beam changes based on mobility patterns and environmental factors. By preparing beam switch commands in advance and validating them through feedback before execution, the system maintains reliability while enabling efficient beam transitions.
2Reliability
If beam switching is performed frequently to adapt to mobility and environmental changes, then communication reliability is improved, but service disruption increases due to radio connection reestablishment
Solution Approach 1:
The patent predicts upcoming beam changes based on mobility patterns and environmental conditions, preparing beam switch commands in advance. This preliminary action allows the system to execute beam switches proactively rather than reactively, maintaining communication reliability while minimizing service disruption by avoiding late-stage reestablishment procedures.
Solution Approach 2:
The patent implements validation mechanisms that check beam change commands before execution, and uses feedback loops to confirm successful transitions. This cushioning approach prevents failed beam switches that would trigger time-consuming reestablishment procedures, thereby reducing service disruption while maintaining communication reliability.
3Measurement precision
If beam confirmation timers are used to verify beam changes, then beam switching accuracy is improved, but communication latency increases
Solution Approach 1:
The patent implements dynamic timer adjustment where beam confirmation timeout values are adapted based on historical beam change success rates, device mobility patterns, and channel conditions. This dynamic approach maintains high beam switching accuracy by using appropriate confirmation periods while minimizing latency by reducing timeout durations when conditions permit faster validation.
Data Source
AI summary
Methods and apparatus for facilitating the use of a plurality of antenna beams for communications purposes are described. In at least some embodiments beam priority information is periodically exchanged. Multiple timers are used to ensure beam information is exchanged at intervals intended to facilitate reliable beam synchronization and to control switching to one or more alternative beams in a predictable manner in the event beam change information or beam synchronization information is lost. In some but not all embodiments a wideband beam is used to communicate beam synchronization information when synchronization using narrower beams used for normal data communication is lost.