Wireless Client Real-Time Data Acknowledgement Mechanism
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Solution Overview
Problem
Conventional WLANs face challenges in providing Quality of Service (QoS) for real-time data transmission, such as streaming audio and video, as existing protocols like RTP do not require acknowledgement packets, leading to inefficiencies and potential delays.
Innovation Solution
A wireless communication system and client configuration that transmits real-time data packets in an uncompressed format, using IEEE protocols like 802.11, 802.11a, 802.11b, 802.11g, 802.11n, and 802.20, with a control engine configuring parameters like beacon interval, data transfer rate, and contention window to support real-time transmission modes, ensuring efficient and reliable data transfer without TCP/IP headers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If RTP protocol is used for real-time data transmission, then transmission speed is improved, but reliability deteriorates because ACK packets are not required
Solution Approach 1:
The patent segments the transmission protocol into two parts: uses RTP for the data payload to maintain high transmission speed, and adds a separate acknowledgment mechanism at the application layer to ensure reliability. This allows the system to benefit from RTP's efficiency while adding reliability through optional ACK packets.
2Productivity
If compression circuitry is added to reduce data size, then transmission efficiency is improved, but device complexity increases
Solution Approach 1:
The patent extracts the compression function from the transmission system by using pre-compressed formats like MP3 or AAC that are processed before transmission. This removes the need for real-time compression circuitry in the transmission device, reducing complexity while maintaining transmission efficiency through efficient codec formats.
3Adaptability or versatility
If TCP/IP headers are included in real-time data packets, then protocol compatibility is improved, but transmission delay increases
Solution Approach 1:
The patent implements a dynamic packet format that can adapt between including full TCP/IP headers for general compatibility and using streamlined headers for time-critical real-time data. The system dynamically selects the appropriate header format based on the specific transmission requirements, balancing compatibility and delay.
4Reliability
If standard CSMA/CA protocol is used for medium access, then collision avoidance is improved, but real-time transmission performance deteriorates due to random backoff delays
Solution Approach 1:
The patent applies preliminary action by reserving transmission resources in advance through resource reservation protocols or QoS mechanisms. Before real-time data transmission begins, the system pre-negotiates and reserves bandwidth and time slots, eliminating the need for random backoff delays during actual transmission while maintaining collision avoidance through the reserved schedule.
Data Source
AI summary
In one aspect, a method for communicating with a wireless communication system through a wireless client includes associating a wireless client with a wireless communication system; at the wireless client, receiving one or more real time data packets transmitted from the wireless communication system, each real time data packet containing real time data; and sending an acknowledgement (ACK) packet for each real time data packet correctly received by the wireless client.