Relay Link QoS Coordination for Congestion-Aware Downlink Transmission
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Solution Overview
Problem
Data transmission in scenarios involving a first user equipment communicating with a data network via a second user equipment as a relay is often affected by congestion and inconsistent link states, leading to suboptimal overall data transmission rates and delays, which impact user experience.
Innovation Solution
A communication method and device that dynamically adjust data handling based on the states of both the first and second links, prioritizing the transmission of high-importance data packets to optimize data transmission and ensure user experience.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data transmission is performed on the first link and second link with different link states independently, then each link can be optimized individually, but the overall data transmission rate is limited by the lower of the two links and delay increases
Solution Approach 1:
The patent combines the QoS parameter optimization of the first link and second link into a unified optimization process. The network device determines QoS parameters for both links simultaneously by comprehensively considering the link states of both links, rather than optimizing them independently. This merging of optimization processes ensures that the overall data transmission rate is maximized while minimizing transmission delay by coordinating the parameters across both links.
Solution Approach 2:
The patent implements dynamic QoS parameter adjustment based on real-time link states. The network device continuously monitors the states of both the first link and second link, and dynamically determines appropriate QoS parameters (such as transmission rate, priority, and resource allocation) according to the current conditions. This dynamic optimization allows the system to adapt to changing network conditions and maintain optimal performance.
2Productivity
If only the second link state is considered for data transmission optimization, then the optimization process is simpler, but the overall transmission performance is limited by the first link state
Solution Approach 1:
The patent segments the QoS optimization process into distinct stages: first, the network device obtains the link states of both the first link and second link separately; second, it determines QoS parameters for the first link based on its state; third, it determines QoS parameters for the second link based on its state; and finally, it coordinates these parameters to achieve overall optimization. This segmented approach maintains clarity and manageability while still considering both links comprehensively.
3Reliability
If high-priority data packets are prioritized for transmission during congestion, then user experience is maintained, but overall data transmission may be affected by selective handling
Solution Approach 1:
The patent applies different QoS parameter settings to different data packets based on their priority levels. High-priority data packets receive optimized parameters (such as higher transmission rate, lower delay tolerance, or preferential resource allocation) to ensure user experience quality, while other packets are handled according to standard protocols. This localized quality differentiation allows the system to maintain reliable service for critical data while managing overall transmission efficiently.
Data Source
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AI summary
This application relates to a communication method and a device. The method is applied to an access network device. The access network device is located in a data network, and a first UE communicates with the data network via a second UE. In response to receiving a first data packet during downlink transmission, the access network device obtains first data and second data from the first data packet. Then, the access network device sends at least one of the first data or the second data to the second UE based on first handling, where the first handling is associated with a first link state and a second link state. A first link is a communication link between the first UE and the second UE, and a second link is a communication link between the second UE and the access network device. In this application, in a scenario in which the first UE communicates with the data network via a relay of the second UE, data transmission can be optimized, and impact of an adverse case on data transmission can be alleviated or reduced.