SRS Power Control Using Path Loss for Stable Beam Management
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Solution Overview
Problem
The selection of Sounding Reference Signal (SRS) power in wireless communication systems significantly influences the choice of transmitting and receiving beams, but existing methods lack effective power control mechanisms.
Innovation Solution
A method and device that determine a target path loss value for SRS resources based on a common downlink signal, allowing for consistent transmission power across multiple SRS resources, thereby optimizing beam management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a user equipment camps on a frequency point without service connection, then the equipment can perform idle activities, but the equipment consumes battery power and occupies network resources without contributing to network utilization
Solution Approach 1:
The network side autonomously identifies and manages idle user equipment through detection mechanisms, automatically sending wake-up notifications or redirection instructions without requiring user intervention. This self-service approach resolves the contradiction by having the system automatically manage idle resources while minimizing unnecessary power consumption and optimizing network utilization.
Solution Approach 2:
The patent implements a feedback mechanism where the network side continuously monitors frequency points for idle user equipment and responds with wake-up notifications or redirection instructions. This closed-loop feedback system enables the network to dynamically adjust resource allocation, reducing battery waste from prolonged idle camping while maintaining efficient network utilization through real-time monitoring and response.
2Reliability
If user equipment continuously monitors frequency points for network signals, then the equipment maintains connection readiness, but the equipment increases power consumption and may miss important network notifications
Solution Approach 1:
Instead of continuous monitoring, the patent implements periodic monitoring where user equipment checks frequency points at predetermined intervals. The network side sends wake-up notifications at these periodic intervals to alert idle equipment of incoming services or system information changes. This periodic approach maintains connection readiness reliability while significantly reducing power consumption compared to continuous monitoring.
Solution Approach 2:
The network side acts as an intermediary by sending wake-up notifications to user equipment that is in idle monitoring state. This intermediary mechanism allows the network to reliably communicate important information (incoming calls, system updates) without requiring continuous equipment monitoring, thus maintaining reliability while reducing the energy burden on mobile devices.
3Device complexity
If user equipment remains in idle state on wrong frequency point, then the equipment avoids unnecessary network switching, but the equipment wastes time and power without accessing available network services
Solution Approach 1:
The network side performs preliminary actions by proactively detecting idle user equipment on incorrect frequency points and sending wake-up notifications or redirection instructions before the equipment would naturally time out or attempt connection. This preliminary intervention prevents wasted time and power by redirecting equipment to correct frequency points before unnecessary idle operations continue, while avoiding complex network switching by providing direct guidance.
4Productivity
If the network side continuously monitors all frequency points for idle equipment, then the network optimizes resource allocation, but the network increases signaling overhead and processing load
Solution Approach 1:
Instead of uniformly monitoring all frequency points with equal intensity, the patent applies local quality by having the network side monitor specific frequency points or regions where idle user equipment is more likely to be found. The monitoring granularity and intensity are adjusted locally based on network conditions, traffic patterns, and historical data. This localized approach optimizes resource allocation effectiveness while reducing overall signaling overhead and processing load compared to exhaustive universal monitoring.
Data Source
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AI summary
The embodiments of the present application provide a wireless communication method and device, capable of performing appropriate power control of a sounding reference signal (SRS). The method comprises: according to a first uplink signal, a first downlink signal, a first beam or a first beam pair corresponding to an SRS resource group, determining a target path loss value for an SRS resource of the SRS resource group; according to the target path loss value, determining a target transmission power for the SRS resource of the SRS resource group; and according to the target transmission power, transmitting an SRS to a network device on the SRS resource of the SRS resource group.