RAT Priority Settings for Mobile Terminal Operation Modes
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Solution Overview
Problem
Current methods for handling interworking between different radio access technologies, such as E-UTRAN, GERAN, and UTRAN, face challenges in managing RAT priorities effectively, particularly during ongoing calls or packet sessions, leading to limitations in measurement capabilities and unnecessary handovers or reselections.
Innovation Solution
Implementing a method to provide specific radio access technology priority settings based on the operation mode of user equipment, allowing for tailored RAT priority settings in idle, dedicated, dual transfer, and packet transfer modes, which are broadcasted or sent via specific messages, to control measurement activities and handovers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the user equipment performs measurements for all different RATs in dedicated mode, then the measurement coverage is improved, but the measurement gaps are exceeded and the device complexity increases
Solution Approach 1:
The patent applies local quality by providing different measurement configurations for different RATs based on the user equipment's operational mode. In dedicated mode, the network provides specific measurement configurations that prioritize certain RATs over others, allowing the UE to perform measurements efficiently without exceeding measurement gaps. This selective measurement approach resolves the contradiction by tailoring measurement coverage to local needs rather than uniformly measuring all RATs.
Solution Approach 2:
The patent implements dynamics by making the measurement configuration adaptive to the user equipment's operational mode. The network dynamically adjusts measurement settings based on whether the UE is in idle mode, dedicated mode, or packet transfer mode. This dynamic adaptation allows the system to optimize measurement coverage according to current operational requirements, resolving the contradiction between comprehensive measurement and limited measurement gaps.
2Loss of information
If the user equipment includes all neighbouring cells from several different RATs in measurement reports, then the information completeness is improved, but the reporting limitations are exceeded and the loss of information increases
Solution Approach 1:
The patent applies local quality by providing different measurement configurations for different RATs based on the user equipment's operational mode. In dedicated mode, the network provides specific measurement configurations that prioritize certain RATs over others, allowing the UE to perform measurements efficiently without exceeding measurement gaps. This selective measurement approach resolves the contradiction by tailoring measurement coverage to local needs rather than uniformly measuring all RATs.
Solution Approach 2:
The patent implements dynamics by making the measurement configuration adaptive to the user equipment's operational mode. The network dynamically adjusts measurement settings based on whether the UE is in idle mode, dedicated mode, or packet transfer mode. This dynamic adaptation allows the system to optimize measurement coverage according to current operational requirements, resolving the contradiction between comprehensive measurement and limited measurement gaps.
3Productivity
If the user equipment performs cell reselection to E-UTRAN during CS speech call, then the network efficiency is improved, but the call continuity is disrupted and the reliability decreases
Solution Approach 1:
The patent applies local quality by providing different measurement configurations for different RATs based on the user equipment's operational mode. In dedicated mode, the network provides specific measurement configurations that prioritize certain RATs over others, allowing the UE to perform measurements efficiently without exceeding measurement gaps. This selective measurement approach resolves the contradiction by tailoring measurement coverage to local needs rather than uniformly measuring all RATs.
Solution Approach 2:
The patent implements dynamics by making the measurement configuration adaptive to the user equipment's operational mode. The network dynamically adjusts measurement settings based on whether the UE is in idle mode, dedicated mode, or packet transfer mode. This dynamic adaptation allows the system to optimize measurement coverage according to current operational requirements, resolving the contradiction between comprehensive measurement and limited measurement gaps.
4Adaptability or versatility
If the network provides uniform RAT priority settings for all operation modes, then the system simplicity is improved, but the service optimization is reduced and the adaptability decreases
Solution Approach 1:
The patent applies local quality by providing different measurement configurations for different RATs based on the user equipment's operational mode. In dedicated mode, the network provides specific measurement configurations that prioritize certain RATs over others, allowing the UE to perform measurements efficiently without exceeding measurement gaps. This selective measurement approach resolves the contradiction by tailoring measurement coverage to local needs rather than uniformly measuring all RATs.
Solution Approach 2:
The patent implements dynamics by making the measurement configuration adaptive to the user equipment's operational mode. The network dynamically adjusts measurement settings based on whether the UE is in idle mode, dedicated mode, or packet transfer mode. This dynamic adaptation allows the system to optimize measurement coverage according to current operational requirements, resolving the contradiction between comprehensive measurement and limited measurement gaps.
Data Source
AI summary
The present invention relates to methods and arrangements of handling inter-working between different radio access technologies in a telecommunication system comprising communication network nodes (10; 15) communicating with a plurality of user equipments (18) on uplink (17) and downlink (16) channels. Radio access technology priority settings depending on in which operation mode said user equipment (18) is in, sent by the communication network node (10; 15), are received in the user equipment (18).