Bundled Reference Signals for 5G Power Maintenance Feedback
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Solution Overview
Problem
There is a need for improvements in 5G NR technology to enhance communication efficiency and power management in wireless communication systems, particularly in managing transmit power for bundled reference signals (RSs) in wireless devices.
Innovation Solution
A method and apparatus are provided for configuring and managing a set of bundled RSs, where the RSs are periodic or semi-persistent, allowing wireless devices to indicate their ability to maintain transmit power for subsequent occasions, enabling efficient power management and communication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If wireless devices transmit bundled reference signals periodically or semi-persistently, then communication reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamic transmit power adjustment for bundled reference signals based on channel conditions, device mobility, and quality of service requirements. The system transitions from static power allocation to dynamic power control, allowing the transmit power to be adapted in real-time according to actual communication needs, thereby improving reliability while reducing unnecessary power consumption.
Solution Approach 2:
The patent changes key parameters including transmit power level, bundling size, and periodicity of reference signals based on channel quality indicators and mobility states. By adjusting these parameters dynamically, the system optimizes the balance between communication reliability and power consumption, transmitting more powerful and frequent bundled RS only when necessary for maintaining link quality.
2Measurement precision
If transmit power is increased for bundled RSs, then measurement precision is improved, but power consumption increases
Solution Approach 1:
The patent applies different transmit power levels for bundled reference signals based on local channel conditions, device-specific requirements, and service priorities. Instead of uniform power allocation, the system tailors power levels to specific devices and channel scenarios, providing enhanced measurement precision only where and when it is most needed, thus avoiding unnecessary power consumption in good channel conditions.
3Reliability
If bundling size of RSs is increased, then reliability is improved, but device complexity increases
Solution Approach 1:
The patent implements partial bundling strategies where only a subset of available reference signals are bundled together based on channel conditions and quality requirements. Instead of always bundling all available RSs, the system applies bundling selectively and partially, achieving sufficient reliability improvement without the full complexity cost of comprehensive bundling in all scenarios.
Data Source
AI summary
Apparatus, methods, and computer program products for wireless communication with reference signal bundling are provided. An example method may include receiving, from a second wireless device, a configuration for a set of bundled reference signals (RSs), where the set of bundled RSs is periodic or semi-persistent, where the set of bundled RSs is associated with a plurality of occasions. The example method may further include transmitting, for the second wireless device before a subsequent occasion of the plurality of occasions, an indication representing whether the first wireless device is able to maintain a transmit power for the subsequent occasion of the plurality of occasions.