Trigger Frame Cooperative Transmission Access Point
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Solution Overview
Problem
Current wireless communication systems lack a standardized trigger frame format for cooperative transmission between multiple access points, hindering efficient cooperative operation and throughput enhancement in wireless local area networks.
Innovation Solution
A communication apparatus and method that generates and transmits a trigger frame with a specific subfield value to instruct slave access points to perform cooperative transmission, enabling coordinated data transmission with stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cooperative transmission is implemented without a standardized trigger frame format, then system flexibility and adaptability are improved, but device complexity and implementation difficulty increase
Solution Approach 1:
The patent reuses the existing trigger frame structure and changes only the Trigger Type subfield value to indicate cooperative transmission. This parameter change allows the system to support new functionality while maintaining compatibility with existing protocols and reducing implementation complexity.
Solution Approach 2:
The trigger frame is designed to serve multiple functions: it can indicate both traditional uplink trigger operations and cooperative transmission operations by simply changing the Trigger Type subfield value. This multi-functionality reduces the need for separate signaling mechanisms and simplifies the overall system design.
2Reliability
If a new trigger frame format is created for cooperative transmission, then communication precision and reliability are improved, but device complexity and standardization difficulty increase
Solution Approach 1:
Instead of creating a new frame format, the patent modifies the existing trigger frame by changing the Trigger Type subfield value. This approach ensures reliable communication through established frame structures while avoiding the complexity of new format definitions and implementations.
Solution Approach 2:
The patent copies the existing trigger frame structure and reuses it for cooperative transmission by simply changing the Trigger Type indicator. This copying approach ensures reliability through proven frame structures while minimizing additional complexity.
3Productivity
If trigger frames are transmitted between access points for cooperative transmission, then throughput and network efficiency are improved, but communication overhead and energy consumption increase
Solution Approach 1:
The existing trigger frame structure is reused for cooperative transmission coordination, allowing a single frame type to serve multiple purposes. This reduces the number of different frame types that need to be processed and reduces overall communication overhead compared to implementing dedicated frames for each function.
Solution Approach 2:
The trigger frame mechanism, already established for uplink coordination, is made to self-serve cooperative transmission coordination as well. This eliminates the need for separate signaling protocols and reduces energy consumption by reusing existing processing paths.
Data Source
AI summary
A communication apparatus, which operates as a master access point in a wireless network including one or more other access points operating as slaves and one or more stations, generates a trigger frame that includes a Trigger type subfield value indicating an instruction to perform cooperative transmission with the other access points, transmits the generated trigger frame to the other access points, and executes the cooperative transmission with the other access points to which the trigger frame has been transmitted.