Multi-Cell Backhaul Multiplexing for Parallel 5G Data Transmission
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Solution Overview
Problem
The integration of 5G networks with Integrated Access and Backhaul (IAB) technology faces challenges such as latency and inefficiency due to serial data transmission, which negatively impact wireless device performance, especially in dense environments.
Innovation Solution
The proposed solution involves associating unique codes with multiple access nodes, multiplexing data with these codes, and transmitting the multiplexed data in parallel to a donor node. The donor node then multiplexes its own data with a unique donor code and transmits everything in parallel to the core network, allowing for efficient and low-latency data processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If data is transmitted in series through the donor node, then interference is minimized, but latency increases and efficiency decreases
Solution Approach 1:
The patent segments the backhaul network into multiple independent transmission paths by assigning unique codes to different access nodes. This allows data from multiple access nodes to be transmitted in parallel through the donor node without interfering with each other, effectively dividing the single serial path into multiple parallel paths.
Solution Approach 2:
The patent introduces unique codes as an intermediary mechanism that enables multiple access nodes to share the donor node's transmission medium without causing interference. These codes act as mediators that allow the donor node to distinguish and separate data from different access nodes, enabling parallel transmission while maintaining reliability.
2Device complexity
If multiple access nodes transmit data through a single donor node in series, then device complexity is reduced, but productivity decreases
Solution Approach 1:
The patent merges multiple access node transmissions into a single donor node infrastructure while maintaining parallel processing capabilities. By combining the physical infrastructure (donor node) with logical separation (unique codes), the system achieves both simplicity in device structure and high productivity in data transmission.
Solution Approach 2:
The patent adds a new dimension to the transmission system by introducing code-based multiplexing. Instead of expanding the physical infrastructure horizontally (adding more donors), the system vertically layers code-based identification, allowing multiple access nodes to share the same physical path without conflict, thereby increasing productivity without increasing device complexity.
3Quantity of substance
If 5G signals are transmitted at high frequencies, then data capacity increases, but signal range decreases and susceptibility to interference increases
Solution Approach 1:
The patent changes the parameter of signal identification from spatial-temporal separation to code-based separation. By assigning unique codes to different access nodes, the system allows high-frequency 5G signals to be transmitted simultaneously without mutual interference, effectively managing signal degradation through code orthogonality rather than reducing data capacity.
Data Source
AI summary
Methods, systems, and access nodes associate a corresponding unique code with multiple access nodes and multiplex data with each of the corresponding unique codes. Further, the multiplexed data is transmitted from each of the multiple access nodes to a donor node. At the donor node, a unique donor code is assigned and is multiplexed with the donor node data. The multiplexed data from the multiple access nodes and the multiplexed donor node data are transmitted in parallel from the donor node to a core network.