Host Device BS List Management for Companion Reconnection
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Solution Overview
Problem
The reconnection process between a companion device and a host device via Wide Area Network (WAN) communication is time-consuming and power-intensive, as the companion device needs to search for available networks, leading to prolonged operation times and increased power consumption.
Innovation Solution
A method where the host device periodically transmits a Base Station (BS) list to the companion device via short-range communication, updating the list based on changes in connected BSs, signal strength, and preset time intervals, allowing the companion device to efficiently reconnect to the host device by selecting the best available network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the companion device performs a network search to reconnect via WAN communication, then the device can re-establish connection with the host device, but the reconnection process takes a long time and consumes significant power
Solution Approach 1:
The host device performs network searches and obtains BS lists in advance while connected to the companion device. The BS list containing information about available base stations is stored and transmitted to the companion device before disconnection occurs. When disconnection happens, the companion device can immediately use this pre-obtained BS list to reconnect without performing a time-consuming network search.
Solution Approach 2:
The BS list acts as an intermediary information carrier between the host device and the network environment. The host device captures network conditions and base station information, packages them into a BS list, and transmits this intermediate data structure to the companion device. This intermediary list enables the companion device to reconnect efficiently without directly performing network searches.
2Reliability
If the companion device performs a network search to reconnect via WAN communication, then the device can re-establish connection with the host device, but the power consumption increases significantly
Solution Approach 1:
The host device performs network searches and obtains BS lists in advance while connected to the companion device. The BS list containing information about available base stations is stored and transmitted to the companion device before disconnection occurs. When disconnection happens, the companion device can immediately use this pre-obtained BS list to reconnect without performing a time-consuming network search.
Solution Approach 2:
The host device serves the companion device by proactively obtaining and providing the BS list. Instead of the companion device having to perform energy-consuming network searches independently, the host device performs the network search work and delivers the results to the companion device, enabling energy-efficient reconnection.
3Reliability
If the BS list is updated frequently to ensure accuracy, then the companion device can reconnect to the best available network, but the transmission frequency increases and consumes more power
Solution Approach 1:
The host device updates and transmits the BS list at predetermined time intervals rather than continuously or on every network change. This periodic update mechanism ensures the companion device receives relatively current network information while avoiding excessive transmission frequency. The update cycle is balanced to maintain acceptable BS list accuracy without causing excessive power consumption from frequent transmissions.
Data Source
AI summary
A method and device for managing a Base Station (BS) list by a first electronic device. The method includes transmitting the BS list to a second electronic device connected to the first electronic device via short-range communication; determining whether a preset time lapses from the transmission of the BS list; updating the BS list when the preset time lapses; and transmitting the updated BS list to the second electronic device. The device includes a communication module configured to transmit the BS list to a second electronic device connected to the first electronic device via short-range communication; and a list management module configured to determine whether a preset time lapses from the transmission of the BS list, update the BS list when the preset time lapses, and control the communication module to transmit the updated BS list to the second electronic device.