Neighbor Cell Measurement Control Based on UE Location
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Solution Overview
Problem
Existing wireless devices consume excessive power due to unnecessary neighbor cell measurements, particularly when stationary or in stable RF conditions, leading to reduced battery life and inefficient resource use.
Innovation Solution
User equipment (UE) intelligently disables neighbor cell measurements based on location data, such as GPS coordinates and serving cell measurements, to conserve power and reduce unnecessary calculations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If neighbor cell measurements are continuously performed to ensure optimal connectivity and facilitate handoff transactions, then reliability of communication link is improved, but power consumption increases
Solution Approach 1:
The patent applies dynamics by making the neighbor cell measurement process adaptive rather than static. The UE dynamically adjusts whether to perform neighbor cell measurements based on its mobility state determined from location data. When the UE is stationary or moving slowly, measurements are disabled or reduced. When the UE is moving quickly, measurements are enabled to ensure reliable handoff transactions. This dynamic adjustment resolves the contradiction by making reliability monitoring contingent on actual movement conditions.
Solution Approach 2:
The patent changes the parameter of measurement activity based on the mobility state parameter. By determining mobility state from location data (comparing current location to previous location over time), the system adjusts the measurement parameter between two states: full measurements when mobile and reduced/no measurements when stationary. This parameter change approach allows the system to maintain reliability when needed while conserving power when mobility is not a factor.
2Reliability
If neighbor cell measurements are performed for all neighbor base stations, then connectivity reliability is improved, but device complexity and processing overhead increase
Solution Approach 1:
The patent applies partial action by performing neighbor cell measurements only when necessary rather than continuously for all neighbor base stations. Based on the determined mobility state, the UE selectively disables or reduces neighbor cell measurements when stationary or moving slowly, and enables them when moving quickly. This partial measurement approach maintains handoff reliability when mobility requires it while reducing processing complexity when mobility is minimal.
3Adaptability or versatility
If neighbor cell measurements are continuously monitored, then handoff transaction capability is improved, but battery life is reduced
Solution Approach 1:
The patent transforms continuous neighbor cell measurements into periodic measurements based on mobility state. Instead of continuously monitoring all neighbor base stations, the UE periodically determines its mobility state from location data and adjusts measurement activity accordingly. When stationary or moving slowly, measurements are disabled or reduced to conserve battery. When moving quickly, measurements are enabled to maintain handoff capability. This periodic assessment approach resolves the contradiction between handoff adaptability and battery conservation.
Data Source
AI summary
A user equipment (UE) is provided. The UE operates on a wireless communication network and is served by a serving base station. The wireless communication network includes a plurality of neighbor base stations that are adjacent to the serving base station. The UE obtains location data associated with the UE and, based on the location data, disables neighbor cell measurements for at least one neighbor base station. The neighbor cell measurements characterize a communication link between the UE and the at least one neighbor base station. The UE may disable the neighbor cell measurements for some, or all, of the neighbor base stations.