Short SSID Network Probing for Wireless Devices
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Solution Overview
Problem
In wireless communication systems, determining the most desirable wireless access point (WLAN) to connect to can be time and energy intensive due to the large number of available WLAN access points, especially when dealing with new or unknown Short Service Set Identifiers (SSIDs).
Innovation Solution
A method where user equipment (UE) devices receive a Short SSID from an access point, determine if they have a record associating it with a full SSID, and transmit probe requests addressed to either the Short SSID or the full SSID, optionally including instructions for the access point to provide the full SSID in the probe response, to efficiently identify and connect to the most suitable network.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE transmits probe requests to multiple SSIDs to identify suitable networks, then the reliability of network selection is improved, but the time and energy consumption increases
Solution Approach 1:
The UE performs preliminary actions by checking its local record before transmitting probe requests. It determines whether it has a record associating the full SSID with the Short SSID received from the AP, and only then decides whether to send a probe request. This preliminary check avoids unnecessary probing operations and reduces time consumption while maintaining reliable network selection.
2Reliability
If the UE transmits probe requests to multiple SSIDs to identify suitable networks, then the reliability of network selection is improved, but the energy consumption increases
Solution Approach 1:
The UE performs preliminary actions by checking its local record before transmitting probe requests. It determines whether it has a record associating the full SSID with the Short SSID received from the AP, and only then decides whether to send a probe request. This preliminary check avoids unnecessary probing operations and reduces energy consumption while maintaining reliable network selection.
3Loss of information
If the probe request includes instructions for the AP to provide the full SSID in the probe response, then the information completeness is improved, but the message overhead increases
Solution Approach 1:
The patent extracts only the necessary information from the full SSID and uses a Short SSID in the probe request message. The UE includes an instruction in the probe request for the AP to provide the full SSID in the probe response only when needed. This extraction approach reduces message overhead while maintaining information completeness by obtaining the full SSID only when necessary.
Data Source
AI summary
Methods, systems, and apparatus are presented for performing network probing. A user equipment device (UE) may store a record associating traditional service set identifiers (SSIDs) with corresponding Short SSIDs. According to some embodiments, the UE may receive a message including a Short SSID, and determine whether a corresponding full SSID is known to the UE. Based on the determination, a probe request may be generated, addressed to either the Short SSID or the full SSID. After transmitting the probe request, the UE may receive a probe response, which may include a full SSID corresponding to the Short SSID. The UE may store a record associating the full SSID with the Short SSID, if applicable. According to some embodiments, a UE may receive a plurality of messages including respective SSIDs, and may generate a single probe request addressed to the SSIDs. The UE may receive a plurality of probe responses.