Air Interface Header Removal for Wireless Data Transmission
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Solution Overview
Problem
Existing header compression mechanisms in wireless networks are ineffective due to their focus on layer-based compression, neglecting data redundancy across layers and failing to consider wireless network characteristics, resulting in limited compression efficiency and unsatisfied user demands.
Innovation Solution
The method involves parsing and learning application information in wireless networks to remove unnecessary high-layer protocol stack headers during air interface transmission, utilizing a point-to-point characteristic to flatten protocol stacks and recover headers when necessary, thereby reducing data packets' size and enhancing transmission efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If more spectrum resources are allocated to increase transmission capacity, then the data transmission amount increases, but the operating cost increases
Solution Approach 1:
The patent extracts and removes unnecessary protocol headers (IP, UDP, TCP, RTP headers) from data packets before air interface transmission. By taking out only the essential payload data and eliminating redundant header information, the system reduces the total data transmission volume without requiring additional spectrum resources, thereby avoiding increased operating costs.
Solution Approach 2:
The patent discards high-layer protocol headers at the access network side before transmission, and recovers/reconstructs them at the terminal side. This discarding-and-recovering approach eliminates unnecessary header transmission over the air interface while ensuring the terminal receives complete protocol information needed for application processing, thus reducing transmission volume without compromising service quality.
2Quantity of substance
If a higher order modulation mode is adopted to increase transmission amount, then the data transmission capacity increases, but the signal-to-noise ratio requirement increases, resulting in higher transmission power and energy consumption
Solution Approach 1:
By extracting and removing redundant protocol headers from data packets, the patent reduces the total data volume that requires high-order modulation. transmitting only essential payload data allows the system to maintain adequate transmission capacity using lower-order, more energy-efficient modulation modes, thereby reducing the signal-to-noise ratio requirement and transmission power consumption.
3Productivity
If protocol header information is reduced to enhance air interface transmission efficiency, then the transmission effectiveness increases, but the complexity of header compression mechanisms increases
Solution Approach 1:
The patent takes out and removes high-layer protocol headers (IP, UDP, TCP, RTP) that are unnecessary for air interface transmission between the access network and terminal. This direct extraction approach is simpler than traditional compression mechanisms because it eliminates entire header structures rather than attempting to compress them, thereby enhancing transmission efficiency while avoiding complex compression algorithms and state management.
Solution Approach 2:
Instead of compressing headers to reduce their size, the patent inverts the approach by completely removing unnecessary headers before transmission and reconstructing them only at the terminal side. This inversion from compression to elimination simplifies the mechanism by avoiding the complexity of maintaining compression contexts, sequence numbers, and compression algorithms across multiple packet types.
4Quantity of substance
If layer-based header compression is used, then some header overhead is reduced, but data redundancy among layers is not considered, limiting compression effect
Solution Approach 1:
The patent merges the header removal function across multiple protocol layers (IP, UDP, TCP, RTP) into a single unified operation at the access network side. By combining the removal of headers from all these layers simultaneously, the system achieves comprehensive header elimination that addresses data redundancy across layers, significantly improving compression efficiency compared to handling each layer separately.
Solution Approach 2:
The patent extracts and removes headers from multiple protocol layers (IP, UDP, TCP, RTP) in a unified process. By taking out headers from all these layers simultaneously rather than compressing them layer by layer, the system eliminates redundant information across layers and achieves superior compression effects that single-layer approaches cannot accomplish.
Data Source
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AI summary
The present invention provides a data transmission method, apparatus and system, which relate to the field of the wireless network technology. The data transmission method provided in the embodiment of the present invention includes: acquiring a downlink data packet sent to a terminal, in which the downlink data packet does not have a high layer protocol stack header; sending the downlink data packet to the terminal through an air interface; and receiving an uplink data packet from a terminal, wherein the uplink data packet does not have a high layer protocol stack header; encapsulating a corresponding high layer protocol stack header for the uplink data packet and performing forwarding. Through the present invention, the data amount in the air interface transmission is reduced to a great extent, the efficiency of air interface transmission is substantially enhanced, and the air interface resource is saved, thereby facilitating the enrichment and development of wireless services and satisfying the demands of users. The present invention is applicable to a scenario of air interface transmission in a wireless network.