Mobile Terminal Cell Exchange Optimization via Forbidden Area Storage
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Solution Overview
Problem
Current mobile terminal technologies are inefficient in optimizing operational times and cell exchange performance, as they require unnecessary radio technical measurements to identify unsuitable adjacent radio cells for cell reselection, leading to increased energy consumption and operational burdens.
Innovation Solution
A method where mobile terminals store and utilize specific proximity information to avoid measuring unsuitable adjacent radio cells by maintaining a list of forbidden location areas and characteristics of cells that have previously rejected access attempts, thereby reducing unnecessary measurements and energy consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mobile terminals continuously measure adjacent radio cells to identify suitable cells for cell exchange, then cell exchange performance is improved, but energy consumption increases and operational time is wasted measuring unsuitable cells
Solution Approach 1:
The patent applies preliminary action by having the mobile terminal store and utilize previously obtained proximity information about adjacent radio cells before actually performing measurements. The terminal maintains a list of forbidden location areas and cell characteristics from prior rejection experiences, allowing it to pre-identify unsuitable cells and avoid measuring them, thus reducing energy consumption while maintaining reliable cell exchange performance.
2Reliability
If mobile terminals measure all adjacent radio cells to ensure optimal cell selection, then cell exchange reliability is improved, but operational time increases due to unnecessary measurements
Solution Approach 1:
The patent implements preliminary action by storing proximity information and rejection histories before cell exchange decisions are made. The mobile terminal uses this pre-stored information to quickly identify and exclude unsuitable cells from measurement consideration, thereby reducing operational time while maintaining reliable cell exchange through informed selection of only potentially suitable cells.
Solution Approach 2:
The patent applies feedback by utilizing previously obtained information about cell rejection experiences and proximity characteristics to guide future cell selection decisions. The mobile terminal feeds back the history of rejected cells and location areas to its own decision-making process, enabling it to avoid re-measuring unsuitable cells and thus reducing operational time while maintaining exchange reliability.
3Use of energy by moving object
If mobile terminals store and use proximity information to avoid measuring unsuitable cells, then energy consumption is reduced, but device complexity increases due to storage and processing requirements
Solution Approach 1:
The patent applies the taking out principle by extracting and storing only the essential proximity information and cell characteristics that are relevant for determining suitability, rather than storing all possible cell data. The mobile terminal extracts key identifiers such as location area codes, cell IDs, and rejection reasons, maintaining a streamlined database that reduces storage requirements and processing complexity while still enabling effective energy savings through targeted measurement avoidance.
Data Source
AI summary
The invention at hand involves a method and an arrangement for optimizing the operational times and cell exchange performance of mobile terminals in a mobile communication network having adjacent radio cells. The mobile terminal temporarily stores network specific characteristics for adjacent radio cells which are not suitable for cell exchange when the mobile communication network is in operation and it uses said characteristics as decision criteria for cell exchange, and said information is used, in particular, to exclude said adjacent radio cells from additional radio technical measurements and identification methods. By implementing the terminal performance according to the inventive method, it is possible to significantly increase the operational times and the cell exchange performance of a mobile terminal in specific situations and to improve the service for a mobile radio customer. The inventive device can also be used for mobile terminals according to GSM or UMTS standard, and also for other radio network technology (for example, wireless LAN (W-LAN), cdma2000, WiMAX, WiBro, enhanced UTRAN, etc.).