Multi-Device WLAN Band Switching for Low-Latency Links
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Solution Overview
Problem
Existing wireless LAN communication systems face increased latency when using the virtual simultaneous dual band (VSDB) scheme, particularly when communicating with devices sensitive to latency, such as augmented reality glasses.
Innovation Solution
An electronic device identifies the presence of connected external devices and sets optimal frequency bands and communication schemes for WLAN communication based on connection information, allowing simultaneous communication with multiple devices while minimizing latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the VSDB scheme is used to perform WLAN communication with multiple external electronic devices during different time intervals, then the electronic device can communicate with multiple devices, but latency increases and performance for latency-sensitive devices deteriorates
Solution Approach 1:
The patent dynamically selects between VSDB and RSDB communication schemes based on real-time conditions. When a latency-sensitive device (like augmented reality glasses) is detected, the system switches to RSDB mode to provide low-latency communication. This dynamic adaptation allows the system to maintain versatility while optimizing performance for specific device types.
Solution Approach 2:
The system changes communication parameters (frequency band, communication scheme) based on the type of external device being served. By identifying latency-sensitive devices and adjusting the communication parameters accordingly, the system resolves the contradiction between supporting multiple devices and maintaining low latency.
2Reliability
If frequency bands are restricted based on connection information to optimize communication with the first external device, then communication performance improves, but the ability to communicate with the second external device may be limited
Solution Approach 1:
The system performs preliminary identification of external devices and their communication requirements before establishing communication. By obtaining connection information in advance and pre-configuring appropriate frequency bands and communication schemes, the system ensures optimal performance while maintaining the ability to support multiple device types.
Solution Approach 2:
The frequency band allocation is dynamically adjusted based on the identified external devices. When a latency-sensitive device is detected, the system restricts frequency band usage to optimize performance for that device type, while still maintaining versatility by adapting to different device requirements.
Data Source
AI summary
Various embodiments of the disclosure provide a method and apparatus for WLAN communication with a plurality of external electronic devices, in an electronic device. An electronic device may include: a memory, a wireless communication circuit, and at least one processor, and the processor is configured to: identify whether a second external electronic device connected to the electronic device for communication via the WLAN is present, based on a first external electronic device connectable to the electronic device via WLAN-based direction communication being retrieved, obtain connection information related to the WLAN communication with the second external electronic device, based on the second external electronic device being present, set, based on the connection information related to the WLAN communication with the second external electronic device, a frequency band and/or WLAN communication scheme for WLAN communication with the first external electronic device, and perform, based on the set WLAN communication scheme and/or frequency band, WLAN communication with the first external electronic device.