Wireless Device Mobility Synchronization Using Stored Beam Identity
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Solution Overview
Problem
In cellular networks with advanced antenna systems using narrow beams, wireless devices face complex synchronization procedures due to frequent beam updates, leading to increased computational load and complexity in mobility synchronization measurements.
Innovation Solution
A method where a wireless device receives an indication to perform mobility measurements on a set of transmission beams with a unique identity, checking if the identity is stored; if so, it uses previous synchronization information, reducing the need for frequent full synchronization processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If wireless devices perform full synchronization procedures on every beam update in advanced antenna systems, then synchronization accuracy is maintained, but computational load and complexity increase significantly
Solution Approach 1:
The patent applies preliminary action by having the wireless device store synchronization information from previously measured beams in a buffer. When a beam update occurs, the device checks if stored synchronization information can be reused for the new beam, avoiding redundant full synchronization procedures. This preliminary storage and reuse of synchronization data reduces computational load while maintaining acceptable synchronization accuracy.
2Reliability
If wireless devices perform full synchronization procedures on every beam update, then synchronization reliability is ensured, but the time required for mobility measurements increases
Solution Approach 1:
The patent applies partial action by performing only necessary synchronization procedures. Instead of executing full synchronization on every beam update, the device performs partial synchronization using stored information when conditions permit, and only executes full synchronization when absolutely necessary. This selective approach reduces synchronization time while maintaining reliability through conditional full synchronization.
3Measurement precision
If wireless devices measure on multiple transmission beams simultaneously, then mobility measurement accuracy improves, but device complexity and processing requirements increase
Solution Approach 1:
The patent applies preliminary action by pre-storing synchronization information from previously measured beams. This allows the device to perform mobility measurements on multiple beams more efficiently, as stored synchronization data serves as a foundation for subsequent measurements, reducing the processing complexity associated with measuring multiple beams simultaneously while maintaining measurement accuracy.
Data Source
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AI summary
There is provided a method for handling mobility synchronization measurements. The method is performed by a wireless device. The method comprises receiving an indication to perform mobility measurements on a set of transmission beams associated with a unique identity. The method comprises checking if the unique identity has previously been stored by the wireless device. The method comprises, if the unique identity has not previously been stored by the wireless device, performing mobility measurements on the set of transmission beams to determine synchronization information of the set of transmission beams. The method comprises storing the unique identity and the synchronization information of the mobility measurements.