Wearable Network Search Using Host-Provided Candidate Cell Lists
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Solution Overview
Problem
Wearable devices face challenges in quickly and efficiently connecting to wireless networks after disconnecting from a host device, leading to battery waste and connection delays due to unnecessary cell searches.
Innovation Solution
A method and apparatus that enables a host device to generate and transmit a neighboring cell list, known as a white list, to a wearable device, which includes information of cells matching the capability of the wearable device, allowing it to perform a faster network search and camp-on to suitable cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wearable devices perform extensive cell searches to connect to wireless networks independently, then connection reliability is improved, but battery consumption increases and connection time is extended
Solution Approach 1:
The host device performs preliminary actions by pre-obtaining and storing neighboring cell information before the wearable device needs to connect independently. This pre-prepared cell list is then transmitted to the wearable device, allowing it to skip extensive cell searches and directly connect to suitable cells, thereby reducing battery consumption while maintaining connection reliability
Solution Approach 2:
The host device acts as an intermediary that bridges the wearable device and the wireless network. It obtains network information from the network side, filters and prepares suitable neighboring cell lists based on wearable device capabilities, and transmits this information to the wearable device. This intermediary approach enables the wearable device to connect reliably without performing energy-intensive cell searches
2Reliability
If wearable devices perform extensive cell searches to connect to wireless networks independently, then connection reliability is improved, but connection time is extended
Solution Approach 1:
The host device performs preliminary actions by pre-obtaining and storing neighboring cell information before the wearable device needs to connect independently. This pre-prepared cell list is then transmitted to the wearable device, allowing it to skip extensive cell searches and directly connect to suitable cells, thereby reducing connection time while maintaining connection reliability
Solution Approach 2:
The host device acts as an intermediary that bridges the wearable device and the wireless network. It obtains network information from the network side, filters and prepares suitable neighboring cell lists based on wearable device capabilities, and transmits this information to the wearable device. This intermediary approach enables the wearable device to connect reliably without performing time-consuming cell searches
3Productivity
If the host device provides neighboring cell list information to the wearable device, then network connection speed is improved, but device complexity increases
Solution Approach 1:
The host device performs multiple functions: it acts as a normal communication device for its own network access, simultaneously serves as a network information acquisition point by obtaining neighboring cell data from the network, functions as a data processing unit by filtering and preparing cell lists based on wearable device capabilities, and acts as an information transmission device. This multi-functionality approach improves network connection speed for wearable devices without requiring additional dedicated hardware, thereby limiting the increase in device complexity
Data Source
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AI summary
An example method performed by a first terminal in a wireless communication system may include identifying a connection state of a second terminal, receiving capability information from the second terminal, if the second terminal is connected with the first terminal using short-range communication, and is not connected with a serving cell of the first terminal over a wireless network, and transmitting a list of at least one candidate cell identified based on the capability information to the second terminal.