Distance-Based Sector Scanning for Mobile Stations
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Solution Overview
Problem
Current sector scanning methods in wireless communication systems do not efficiently detect quality pilot signals from remaining set sectors, leading to increased occurrences of dropped calls due to the lack of prioritization based on distance from the mobile station.
Innovation Solution
A mobile station sorts and scans its remaining set sectors by distance from its location, prioritizing the closest sectors first, using a list of sector locations provided by the BSC or pre-programmed, to quickly detect a quality pilot signal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If sectors are scanned in arbitrary or non-prioritized order, then the scanning process covers all remaining set sectors, but the detection time for quality pilot signals increases and dropped calls occur more frequently
Solution Approach 1:
The patent applies preliminary action by pre-sorting the remaining set sectors based on their distance from the mobile station before scanning begins. This prioritization ensures that closer sectors (which are more likely to provide quality pilot signals) are scanned first, reducing detection time and improving call reliability without requiring any changes to the fundamental scanning mechanism.
2Reliability
If all remaining set sectors are scanned thoroughly, then complete coverage is achieved, but the time and resources required for scanning increase
Solution Approach 1:
By pre-sorting sectors according to distance from the mobile station, the system performs preliminary organization of the scanning target list. This allows the mobile station to scan sectors in an optimized sequence, improving both detection reliability and scanning efficiency without sacrificing thoroughness.
Solution Approach 2:
The patent changes the scanning parameter from arbitrary or non-prioritized order to distance-based prioritized order. This parameter change in the scanning sequence optimizes the detection process by ensuring that sectors with higher probability of containing quality pilot signals are scanned first, thereby improving both reliability and efficiency.
Data Source
AI summary
A mobile station will sort wireless coverage sectors in order of distance of the sectors from the mobile station, and the mobile station will then scan for pilot signals from the sectors in the sorted order. The invention can be applied advantageously to provide an order of scanning remaining set sectors in a mobile station operating according to a code division multiple access protocol.