Adaptation Layer Header Concatenation for Wireless Backhaul
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently managing data transmission and reception, particularly in 5G networks, where high data rates, massive machine-type communications, and ultra-reliable low-latency communications require improved technologies to support diverse service types within a single system, while also reducing header overhead and optimizing resource utilization.
Innovation Solution
The implementation of a method and device that utilize an adaptation layer entity to concatenate data by dividing headers into common and dedicated headers, including a common header field for multiple data pieces and a unique field for each, thereby reducing header overhead and efficiently utilizing transmission resources, and the allocation of HARQ process IDs for parallel transmission to avoid collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate headers are used for each data piece in wireless transmission, then data transmission reliability is improved, but header overhead increases and resource utilization deteriorates
Solution Approach 1:
The patent merges multiple separate headers into a single common header structure that can accommodate multiple data pieces. Instead of transmitting individual headers for each data unit, the system creates a unified header that contains common information applicable to all concatenated data pieces, thereby reducing overall header overhead while maintaining transmission reliability.
Solution Approach 2:
The common header is designed with universal fields that can serve multiple data pieces simultaneously. The header structure includes versatile fields that can identify and manage different data units through mechanisms like Data Radio Bearer (DRB) IDs and sequence numbers, allowing a single header to perform the function of multiple individual headers.
2Adaptability or versatility
If more transmission resources are allocated to support diverse services, then service diversity capability is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent combines multiple data pieces from different services or data radio bearers into a single concatenated transmission unit with a shared common header. This merging approach allows diverse services to be transmitted together efficiently, improving resource utilization by reducing redundant header information while maintaining the ability to support multiple service types through the universal header fields.
3Speed
If HARQ process IDs are not properly managed in parallel transmission, then transmission speed is improved, but data collision and reliability deteriorate
Solution Approach 1:
The patent applies local quality management by assigning specific, unique identifiers (such as DRB IDs and sequence numbers) to different data pieces within the common header structure. This localized identification approach ensures that each data unit can be individually tracked and managed during parallel transmissions, preventing collisions while maintaining high transmission speeds through efficient HARQ process management.
Data Source
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AI summary
The present disclosure relates to a method and device for transmitting and receiving data in a wireless communication system. An operating method of a first radio node for performing a wireless backhaul function in a wireless communication system includes: mapping a bearer of at least one terminal to at least one radio link control (RLC) channel in an adaptation layer, which is an upper layer of an RLC layer; and transmitting, to a second radio node, data corresponding to the bearer of the at least one terminal through the at least one RLC channel. The at least one RLC channel is connected to at least one RLC layer of the second radio node.