Backup Link for Low Latency Wireless Communication
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Solution Overview
Problem
In wireless communication networks, especially WLANs, there is a need for faster link switching and better resource utilization to reduce latency and power consumption, as existing systems require lengthy association procedures and wait times when primary links become unavailable.
Innovation Solution
Implementing backup link establishment and operation in multi-link wireless communication networks, where devices can switch to a secondary link quickly upon primary link quality deterioration, using techniques compatible with IEEE 802.11 standards, and configuring processors to manage data transmission and power save schedules across multiple frequency channels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the primary link becomes unavailable and stations wait for it to become available again, then communication can resume on the original link, but communication latency increases significantly
Solution Approach 1:
The system establishes a backup link in advance before the primary link fails. The backup link is pre-configured and ready for immediate use, eliminating the need for lengthy reassociation procedures when the primary link becomes unavailable. This preliminary preparation allows stations to switch links rapidly without significant latency penalty.
Solution Approach 2:
The backup link serves as an intermediary communication path when the primary link fails. Instead of attempting to restore communication on the failed primary link, the system routes traffic through the backup link, maintaining communication continuity while avoiding the latency of link reestablishment procedures.
2Reliability
If stations perform long association procedures to reestablish communication when the primary link fails, then communication can be restored, but the time and power consumed increases
Solution Approach 1:
The backup link is established in advance with all necessary association parameters pre-configured. When the primary link fails, stations can immediately activate the backup link without performing lengthy association procedures, significantly reducing both time and power consumption compared to traditional reassociation methods.
3Device complexity
If the system uses a single primary link for communication, then device complexity is low, but the system lacks adaptability when link quality deteriorates
Solution Approach 1:
The system implements multi-functionality by establishing both a primary link and a backup link. The backup link serves as a standby resource that can be activated when the primary link quality deteriorates or fails. This universal approach allows the system to adapt to different link conditions without requiring complex real-time reconfiguration, balancing complexity and adaptability effectively.
Data Source
AI summary
Some aspects of this disclosure include apparatuses and methods for implementing backup link establishment and operation for multi-link wireless communication networks such as a wireless local area network (WLAN). Some aspects relate to an electronic device including a transceiver configured to communicate over a wireless network and a processor communicatively coupled to the transceiver. The processor receives a message including information associated with a backup link from a second electronic device. The processor further receives data associated with data traffic from the second electronic device on a primary link of the wireless network. In response to a quality of the primary link being below a threshold, the processor receives a notification frame from the second electronic device on the backup link and receives additional data associated with the data traffic from the second electronic device on the backup link or on an other link informed by the notification frame.