Wireless Packet Transmission Adaptation for QoS and Efficiency
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently transmitting user data packets, particularly in distinguishing and managing voice and data information across multiple wireless communication devices, as they often require standardized packet sizes that do not adapt to varying data types, affecting Quality of Service (QoS) and transmission efficiency.
Innovation Solution
The system identifies and allocates sub-channels for distinct user data types, such as voice and data, within the same packet or sub-channel, using orthogonal frequency division multiplexing (OFDM) in WiMAX networks, allowing for flexible packet formation and transmission tailored to specific devices based on geographical and channel conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If standardized packet sizes are used for all user data, then system compatibility and ease of operation are improved, but transmission efficiency and adaptability to different data types deteriorate
Solution Approach 1:
The patent implements dynamic packet size adaptation where the base station determines optimal packet sizes based on real-time channel conditions, data type (voice vs. data), and device requirements. This allows the system to transition from static standardized packets to dynamic adaptive packets, resolving the contradiction between operational simplicity and transmission efficiency.
Solution Approach 2:
The system changes the packet size parameter dynamically based on data type and channel conditions. Voice packets use smaller sizes for frequent transmission with lower error tolerance, while data packets use larger sizes for less frequent transmission with higher error tolerance, optimizing transmission efficiency for each data type while maintaining system compatibility through standardized protocols.
2Reliability
If smaller packets are used for voice information, then Quality of Service for voice is improved, but transmission frequency and network overhead increase
Solution Approach 1:
The patent implements periodic transmission of voice packets at optimized intervals based on channel conditions and voice activity detection. Instead of continuous transmission, the system transmits voice packets periodically at appropriate frequencies, maintaining QoS while reducing unnecessary transmissions and network overhead during periods of low voice activity or good channel conditions.
Solution Approach 2:
The system applies partial transmission strategies where not all voice packets are transmitted if channel conditions are poor or if voice activity is low. This selective transmission approach maintains perceived QoS by transmitting only necessary packets, reducing overall transmission frequency and network overhead while preserving voice quality for critical packets.
3Productivity
If larger packets are used for data information, then transmission efficiency is improved, but perceived Quality of Service and responsiveness deteriorate
Solution Approach 1:
The patent segments large data packets into smaller manageable units for transmission over the air interface, while maintaining efficient bulk data transfer. The base station performs segmentation of large data packets before transmission, allowing for better error handling, retransmission management, and perceived responsiveness without sacrificing overall transmission efficiency. Receivers reassemble segmented packets into complete data packets.
4Ease of operation
If fixed packet sizes are defined by industry standards, then device compatibility and ease of operation are improved, but adaptability to varying data types and channel conditions deteriorates
Solution Approach 1:
The patent implements a universal packet structure that can accommodate multiple data types (voice, data, video) and channel conditions through flexible field definitions. The base station determines appropriate packet configurations and applies them universally across different devices and data types, maintaining compatibility with industry standards while enabling adaptation to varying requirements through configurable packet fields and formats.
Data Source
AI summary
Systems and methods of wirelessly transmitting user data are provided. A plurality of wireless communication devices are selected for a user data packet. Distinct user data is included for each of the plurality of wireless communication devices in the user data packet. Portions of the user data packet including the user data for each of the plurality of wireless communication devices are identified. The user data packet is then transmitted over a wireless air interface.