Bluetooth-WLAN Coexistence via Single Transceiver Channel Sharing
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Solution Overview
Problem
Current Bluetooth 3.0+HS technology requires additional WLAN hardware to establish a separate WLAN link, leading to increased costs and interference with Bluetooth links, preventing simultaneous operation of multiple communication links without installing extra transceivers.
Innovation Solution
A method utilizing two wireless transceivers to set up and operate multiple communication links according to IEEE standards 802.15.1 and 802.11, allowing simultaneous operation of Bluetooth and WLAN links on the same channel without additional hardware, thereby avoiding interference and reducing costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If BT 3.0 sets up a BT-WLAN channel for high speed data transmission, then data transmission rate is improved, but a separate independent WLAN link cannot be established without additional hardware
Solution Approach 1:
The patent applies multi-functionality by enabling the first wireless transceiver to serve multiple purposes: it operates as a Bluetooth transceiver for basic communication and simultaneously as a WLAN transceiver for high-speed data transmission through the BT-WLAN channel. This eliminates the need for a second dedicated WLAN hardware component while maintaining the ability to establish both Bluetooth and WLAN links.
2Device complexity
If only one independent WLAN hardware is installed, then device complexity is reduced, but BT-WLAN link and Bluetooth 3.0 cannot coexist simultaneously
Solution Approach 1:
The patent implements dynamic operation by allowing the wireless communication apparatus to switch between different communication modes. The single WLAN hardware can dynamically serve either as a standalone WLAN link or as part of a BT-WLAN high-speed link, and the system can adaptively configure which mode to use based on communication needs, enabling flexible coexistence of multiple link types.
3Device complexity
If multiple communication links are operated simultaneously on the same channel, then device complexity is reduced, but interference between links increases
Solution Approach 1:
The patent applies segmentation by dividing the WLAN channel into distinct time slots or transmission opportunities. The Bluetooth and WLAN links share the same physical channel but are separated in time, where Bluetooth transmissions occur during certain time intervals and WLAN transmissions occur during other intervals. This temporal segmentation allows both links to operate simultaneously without mutual interference while using only a single transceiver.
Data Source
AI summary
A method for setting up and operating a multiple communication link in a wireless communication apparatus, which includes a first wireless transceiver and a second wireless transceiver, includes setting up a first communication link according to an IEEE standard 802.15.1 using the first wireless transceiver. The method also includes setting up a second communication link according to an IEEE standard 802.11 using the second wireless transceiver, and setting up a third communication link according to an IEEE standard 802.15.1 using the first wireless transceiver, on a channel of the second communication link. Moreover, the method includes simultaneously operating the first communication link, the second communication link and the third communication link, wherein the second communication link and the third communication link are both simultaneously operated on the same channel of the second communication link.