Relay Information Bit for Efficient Data Forwarding in Wireless Networks
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Solution Overview
Problem
In wireless local area networks, stations with limited power cannot reliably communicate with access points due to inefficient relay procedures, requiring frequent reconnection of relays as network topology changes, leading to low efficiency.
Innovation Solution
A data sending method that includes a relay information bit in data frames to determine if the relay should forward the data, modifying this bit to prevent further relay and ensuring direct communication with the access point, allowing for efficient data transmission even with changing network topologies.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed relay is set for a station that requires relay, then data transmission is enabled for power-limited stations, but connection needs to be established repeatedly when network topology changes quickly, resulting in low efficiency
Solution Approach 1:
The patent implements dynamic relay selection by introducing a relay selection algorithm that continuously monitors network topology changes and automatically updates relay assignments. When topology changes are detected, the system dynamically reconfigures relay connections without requiring complete re-establishment, thus maintaining reliability while improving efficiency.
Solution Approach 2:
The patent employs feedback mechanisms where relay stations report their status and network conditions to a central controller or peer stations. This feedback enables the system to detect topology changes and adjust relay assignments accordingly, resolving the contradiction between maintaining reliable connections and adapting to dynamic network conditions.
2Ease of operation
If relay information bit is added to data frame, then relay forwarding control is improved, but device complexity increases
Solution Approach 1:
The patent modifies existing data frame parameters by adding a relay information bit to the frame structure. This single-bit parameter change enables efficient relay forwarding control without significantly increasing overall complexity, as it leverages the existing frame format and requires minimal processing overhead at relay stations.
Data Source
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AI summary
Embodiments of the present invention provide a data sending method of a terminal, including: sending a data frame to a relay, where the data frame includes a relay information bit, the relay information bit is used for identifying whether the relay needs to forward the data frame, and if the relay information bit indicates that the relay needs to forward the data frame, the data frame is forwarded to an access point by the relay; and receiving a response message of the access point, where the response message is used for indicating that the data frame is correctly received by the access point. By using a data sending method, a data forwarding method and devices according to the embodiments of the present invention, an information exchange method of a terminal and an access point in a case in which the terminal has limited power is provided, so that data sent by the terminal that has limited power arrives at the access point.