Inter-UE Shared Channel Power Control by Transmission Use
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing power control for inter-terminal physical shared channels in shared spectrum resources, particularly in advanced wireless communication systems like 6G, which require precise power management for high data rates, low latency, and reliable connectivity.
Innovation Solution
A method and device for determining and managing transmit power for inter-device physical shared channel transmissions using power control parameters configured per use of the shared channel, along with associated control channel transmissions, to optimize power usage and communication efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single power control parameter is used for all inter-UE physical shared channel transmissions in shared spectrum, then device complexity is reduced, but power control precision and communication reliability deteriorate
Solution Approach 1:
The patent segments the power control parameter configuration by dividing inter-UE physical shared channel transmissions into different use categories (e.g., broadcast, groupcast, unicast). Each use type is assigned its own power control parameter, allowing differentiated power management. This segmentation enables precise power control for each transmission type while maintaining manageable system complexity through structured categorization.
Solution Approach 2:
The patent applies local quality by configuring power control parameters specifically tailored to each use type of inter-UE physical shared channel. Different uses (broadcast, groupcast, unicast) receive optimized power control parameters according to their specific requirements, ensuring that each local transmission scenario operates with appropriate power levels for its function, thereby improving overall communication reliability.
2Reliability
If transmit power is increased for inter-device physical shared channel transmissions, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
The patent changes power control parameters based on the specific use type of each inter-device physical shared channel transmission. By adjusting parameters such as target received power, path loss compensation factors, and power offsets according to whether the transmission is broadcast, groupcast, or unicast, the system achieves optimal power levels for each scenario. This prevents unnecessary energy consumption while maintaining required communication reliability for each use case.
3Measurement precision
If power control parameters are configured per use of inter-device physical shared channel, then power control precision is improved, but device complexity increases
Solution Approach 1:
The patent manages the complexity of multiple power control parameters by segmenting them according to clearly defined use types. Each use type (broadcast, groupcast, unicast) has its own parameter set, which simplifies the management approach compared to handling all parameters uniformly. This structured segmentation makes the parameter configuration systematic and manageable despite the increased precision requirements.
Data Source
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AI summary
An operating method of a first device (100) in a wireless communication system is presented. The method comprises the steps of: determining, on the basis of a use of inter-device physical shared channel transmission, a first transmission power for first inter-device physical shared channel transmission to be performed using a first resource in a shared spectrum; and performing the first inter-device physical shared channel transmission on the basis of the first transmission power and the first resource, wherein the first transmission power can be determined on the basis of power control parameters set for each use of the inter-device physical shared channel transmission.