UE Redistribution Range Calculation in Wireless Networks
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Solution Overview
Problem
In heterogeneous wireless communication networks, user equipment (UE) in RRC_IDLE mode cannot perform idle mode changes based on load distribution information when it does not detect all frequencies in the system information block, leading to incomplete redistribution due to invalid total sum of redistribution probabilities.
Innovation Solution
A method for a UE to calculate a redistribution range using valid redistribution factors received from the network, allowing it to perform redistribution procedures among available frequencies or cells, even when some frequencies are undetectable, by normalizing the redistribution factors based on detectable frequencies or cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network provides redistribution factors for all frequencies including undetectable ones, then the total sum of redistribution probabilities is complete, but the UE cannot perform redistribution to frequencies it does not detect
Solution Approach 1:
The patent changes the parameter of redistribution probability by introducing a normalization factor. The UE calculates a valid redistribution probability by dividing the original redistribution probability by the sum of detectable redistribution probabilities, transforming the parameter to adapt to detected frequencies only
Solution Approach 2:
The UE autonomously identifies detectable frequencies, calculates the sum of their redistribution probabilities, and performs self-normalization without network intervention. This self-service mechanism allows the UE to adapt the redistribution process to its actual detection capability
2Productivity
If the UE performs idle mode change based on load distribution information, then load balancing is improved, but redistribution is incomplete when some frequencies are undetectable
Solution Approach 1:
The patent applies partial action by performing redistribution only on detectable frequencies rather than all frequencies. The UE calculates redistribution range based on valid detectable frequencies, accepting partial redistribution as a practical solution when full redistribution is not feasible
3Ease of operation
If the UE calculates redistribution range based on valid redistribution factors only, then redistribution can be performed on detectable frequencies, but the total sum of probabilities is not complete
Solution Approach 1:
The patent transforms the probability parameter through normalization, changing the reference frame from the original complete set of frequencies to the subset of detectable frequencies. This parameter change allows redistribution to proceed with available information while maintaining probability validity within the detectable range
Data Source
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AI summary
Provided are a method for a terminal calculating a redistribution range in a wireless communication system, and a device supporting same. A terminal may receive redistribution factors from a network and calculate a redistribution range on the basis of a valid redistribution factor among the received redistribution factors.