Relay Terminal Data Transmission Path Selection
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Solution Overview
Problem
In wireless communication systems, remote user equipment (UE) faces challenges in efficiently transmitting data to a base station, leading to increased battery consumption and potential quality of service (QoS) issues due to the need for direct communication with the base station, which can result in higher energy usage and latency, especially in scenarios where a relay UE is not available.
Innovation Solution
A method is introduced where a remote UE can select between a direct transmission path to the base station and an indirect path through a relay UE for transmitting data, including paging messages and buffer status reports, based on data type and service characteristics, to optimize energy consumption and resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a remote UE directly communicates with the base station, then the quality of service and transmission reliability are improved, but the battery consumption increases
Solution Approach 1:
The patent introduces a relay UE as an intermediary node between the remote UE and the base station. The relay UE receives data from the remote UE via D2D communication and forwards it to the base station, thereby reducing the transmission distance and energy consumption for the remote UE while maintaining service quality through the relay path
2Use of energy by moving object
If a relay UE is used for data transmission, then the battery consumption is reduced, but the device complexity and path selection difficulty increase
Solution Approach 1:
The patent implements dynamic path selection where the remote UE can switch between direct and relay-based transmission paths based on real-time conditions such as service type, channel quality, and energy status. This dynamic adaptability allows the system to optimize for energy efficiency when using relay UEs while maintaining the ability to switch to direct paths when needed
Solution Approach 2:
The system employs feedback mechanisms where the remote UE monitors transmission quality, energy consumption, and channel conditions to make informed decisions about path selection. This feedback-driven approach simplifies the complexity by providing clear criteria for when to use relay UEs versus direct communication
3Speed
If direct communication path is selected, then the transmission speed is improved, but the energy consumption increases
Solution Approach 1:
The patent changes the transmission parameters dynamically based on the selected path. When using a relay UE, the system adjusts transmission power, modulation schemes, and resource allocation to optimize for the relayed path characteristics, thereby achieving energy-efficient transmission while maintaining adequate speed through parameter optimization rather than relying solely on direct high-power transmission
Data Source
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AI summary
In a wireless communication system, a base station may transmit a paging message by selecting at least one path among a first transmission path for directly transmitting the paging message to a remote terminal on the basis of data type information of downlink data and a second transmission path for transmitting the paging message to the remote terminal through a relay terminal which relays data transmission and reception between the remote terminal and the base station.