Wireless Network Search Timing with Paging Period Suspension
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Solution Overview
Problem
Existing wireless communication devices face inefficiencies in searching for wireless networks, leading to potential page loss and battery power consumption, as they often overlap paging periods with the time needed to acquire network information.
Innovation Solution
The techniques involve determining available search time excluding paging periods, suspending and resuming the search during these periods, and prioritizing the acquisition of pertinent information from wireless networks like UMTS, GSM, and cdma2000, using master information blocks and system information blocks to minimize page loss and conserve battery power.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the wireless device performs continuous network search to find available networks, then the search completeness is improved, but page loss increases and battery power is consumed
Solution Approach 1:
The network search process is segmented into multiple discrete tasks (frequency scanning, cell identification, system information acquisition) that can be independently scheduled and executed during non-paging periods, allowing the device to complete search operations without interfering with page reception
Solution Approach 2:
The search operation is made dynamic by suspending and resuming based on paging period detection. The device dynamically adjusts search execution timing to avoid paging periods, ensuring both complete network search and timely page reception
2Reliability
If the wireless device performs comprehensive network search including system information acquisition, then the search quality is improved, but the search time increases
Solution Approach 1:
The device performs preliminary frequency scanning and cell identification to create a list of candidate cells before the paging period begins. This preliminary action allows systematic completion of remaining search tasks after paging periods without rushing or overlapping operations
Solution Approach 2:
The search process maintains continuity by systematically executing different search tasks during different non-paging periods rather than interrupting and restarting. Each task picks up where the previous left off, ensuring complete search coverage over time despite periodic suspensions
3Reliability
If the wireless device prioritizes page reception by suspending search during paging periods, then page loss is minimized, but search productivity decreases
Solution Approach 1:
The device implements feedback mechanisms by detecting paging period timing and using this information to dynamically schedule search tasks. The system monitors search progress and adjusts task execution timing based on remaining search time and upcoming paging periods, optimizing the balance between page reception and search completion
Data Source
AI summary
Techniques to efficiently search for wireless networks while minimizing page loss are described. An available search time that excludes paging periods is determined. A search for cells in wireless networks is performed during the available search time. Pertinent information is obtained for cells acquired during the search. The pertinent information may be dependent on the type of search being performed. For a manual search to find detectable wireless networks, the pertinent information for each acquired cell may be network identifier information. For an automatic search to find higher priority wireless networks, the pertinent information for each acquired cell in a higher priority wireless network may be system information used to select that cell. The search may be suspended prior to a paging period. State information for the search may be saved prior to suspending the search. The search may be resumed using the saved state information at the end of the paging period.