Wireless Data Transmission via Reserved MAC Header Bits
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Solution Overview
Problem
Current wireless personal area network (WPAN) standards face inefficiencies in data transmission due to the need for contention-based channel access procedures, which increase overhead, latency, and energy consumption.
Innovation Solution
Implementing a method where a sender informs a receiver of the number of pending data frames, allowing continuous transmission without contention-based access by utilizing reserved bits in the MAC header, thereby reducing overhead and improving energy efficiency and channel utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If contention-based channel access procedure is used, then channel access is achieved, but transmission latency increases and energy consumption increases
Solution Approach 1:
The patent applies preliminary action by having the sender inform the receiver of the number of pending data frames in advance, allowing the receiver to prepare for continuous reception. This eliminates the need for contention-based access during actual data transmission, reducing latency while ensuring reliable channel access through preliminary coordination.
Solution Approach 2:
The patent uses the MAC header as an intermediary to convey the number of pending data frames from sender to receiver. This intermediary mechanism enables continuous transmission by pre-establishing transmission parameters, avoiding repeated contention-based access procedures and reducing overall transmission latency.
2Reliability
If contention-based channel access procedure is used, then channel access is achieved, but energy consumption increases
Solution Approach 1:
The patent applies preliminary action by establishing transmission parameters in advance through the MAC header, enabling continuous data transmission without repeated contention-based access procedures. This significantly reduces energy consumption by eliminating multiple access attempt cycles while maintaining reliable channel access.
Solution Approach 2:
The patent enables continuity of useful action by allowing the sender to transmit multiple data frames continuously once the receiver is informed of the pending frame count. This continuous transmission mode avoids repeated channel access procedures, reducing energy consumption while maintaining reliable communication.
3Productivity
If continuous transmission without contention-based access is implemented, then transmission latency is reduced and energy efficiency is improved, but overhead management complexity increases
Solution Approach 1:
The patent applies universality by using existing reserved bits in the MAC header for multiple purposes - conveying the number of pending data frames while maintaining backward compatibility with existing IEEE 802.15.4 standards. This multi-functional approach enables continuous transmission without adding significant overhead management complexity.
Solution Approach 2:
The patent changes parameters by utilizing reserved bits in the MAC header to encode the number of pending data frames. This parameter change approach enables continuous transmission mode while managing overhead complexity by reusing existing frame structures rather than introducing entirely new protocols.
Data Source
AI summary
A method and apparatus for data transmissions in a wireless network are disclosed. A first device may send a first frame to a second device including information regarding a number of pending data frames to be transmitted from the first device to the second device. The first device receives an acknowledgement frame including a number of approved data frames for transmission from the first device to the second device. The first device then may send a plurality of data frames without performing the contention-based channel access procedure in response to the acknowledgement frame. The first device may send a first frame to a second device for requesting data frames that are pending at the second device. The first device receives an acknowledgement frame including a number of pending and approved data frames. The first device may receive a plurality of data frames in response to the acknowledgement frame.