Variable Scanning Timers for Multi-Band Wireless Devices
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wireless devices face challenges in user experience due to inappropriate timer durations for scanning multiple frequency bands, leading to excessive battery usage, delayed paging messages, and potential dropped calls, as current systems lack efficient methods to differentiate and prioritize frequency bands based on coverage, capacity, and cost criteria.
Innovation Solution
A network node determines distinct timer durations for each frequency band based on criteria such as coverage, capacity, and cost, transmitted to the wireless device to optimize scanning frequency, allowing for more frequent checks of preferred bands while minimizing unnecessary scans on less preferred bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single timer duration is used for scanning all frequency bands, then the device can maintain simple scanning logic, but battery power is excessively consumed when scanning frequently or calls are dropped when scanning infrequently
Solution Approach 1:
The patent divides the frequency bands into multiple groups (first group and second group) and assigns different timer durations to each group. This segmentation allows the device to scan high-priority bands more frequently while reducing scans on low-priority bands, resolving the contradiction between simple scanning logic and battery power consumption.
Solution Approach 2:
The patent applies different scanning characteristics to different frequency bands based on their priority. High-priority bands receive shorter timer durations for more frequent scanning, while low-priority bands receive longer timer durations. This local differentiation optimizes battery usage without compromising connection quality on critical bands.
2Speed
If a short timer duration is used for frequency band scanning, then preferred frequency bands can be found quickly, but battery power is excessively consumed due to frequent scanning
Solution Approach 1:
The patent segments frequency bands into priority groups and applies different timer durations. High-priority bands use short timer durations for quick scanning, while low-priority bands use long timer durations to reduce power consumption, thus resolving the contradiction between scanning speed and battery usage.
3Use of energy by moving object
If a long timer duration is used for frequency band scanning, then battery power consumption is reduced, but the device may establish communication on less preferred bands leading to dropped calls
Solution Approach 1:
The patent divides frequency bands into priority groups with different timer durations. Critical bands have short timers ensuring frequent scanning for call stability, while non-critical bands have long timers to save battery. This segmentation resolves the contradiction between power consumption and call reliability.
Solution Approach 2:
The patent applies different scanning frequencies to different frequency bands based on their importance. Bands critical for call maintenance receive more frequent scanning attention, while less critical bands receive less frequent scans. This local quality approach ensures call stability without excessive power consumption.
4Device complexity
If a single scanning duration is used for all frequency bands, then the scanning process is simple to manage, but preferred bands may be overlooked when the list of available bands is long
Solution Approach 1:
The patent segments the frequency band list into multiple groups with different scanning priorities. This allows the device to systematically scan high-priority bands first and thoroughly, ensuring preferred bands are not overlooked even when the total list is long, while keeping scanning management organized through clear group definitions.
5Reliability
If a long scanning duration is used to ensure all frequency bands are checked, then comprehensive band selection is achieved, but the device is delayed in receiving paging messages on the current frequency band
Solution Approach 1:
The patent divides frequency bands into priority groups and scans them with different frequencies. High-priority bands are scanned more frequently with shorter intervals, ensuring timely detection of preferred bands and reduced paging delays, while comprehensive coverage is maintained through inclusion of all bands in the segmented structure.
Solution Approach 2:
The patent applies different scanning intensities to different frequency bands. Critical bands receive intensive scanning with shorter timers to minimize paging delays, while less critical bands receive lighter scanning. This local quality approach balances completeness with timely message reception.
Data Source
AI summary
Systems and methods for operating a wireless communication system are provided. A network node can determine a first frequency band criteria and a second frequency band criteria based on information from an access node. The network node can determine a first timer duration of a first timer. The first timer duration can be based on the first frequency band criteria. The network node can determine a second timer duration of a second timer. The second timer can be based on the second frequency band criteria. The first timer duration can be different from the second timer duration. The access node can transmit the first timer duration and the second timer duration to the wireless device after the wireless device establishes communication with the access node.