Wireless Reference Signal Measurements to Reduce Interference
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Solution Overview
Problem
Existing wireless systems face challenges in reducing reference signal overhead to minimize interference and power consumption at transmission/reception points while maintaining effective channel estimation and mobility management.
Innovation Solution
The system implements a method for receiving and transmitting downlink control information (DCI) that includes indications of reference measurement resources, measurement configurations, and feedback resource configurations, allowing for selective activation and deactivation of reference signals based on specific criteria.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If reference signal overhead is reduced to minimize interference and power consumption, then interference and power consumption are reduced, but channel estimation accuracy and mobility management effectiveness deteriorate
Solution Approach 1:
The patent segments reference signals into different types (CRS, CSI-RS, DM-RS) with different densities and purposes. By selectively transmitting different reference signal types based on channel conditions and service requirements, the system reduces overall overhead while maintaining necessary measurement precision for channel estimation and mobility management
Solution Approach 2:
The patent implements dynamic reference signal adjustment where the network can activate or deactivate specific reference signal resources based on mobility states, channel conditions, and service types. This dynamic adaptation allows the system to reduce interference and power consumption when full reference signal coverage is not needed, while maintaining accuracy when required
2Use of energy by stationary object
If reference signal overhead is reduced to reduce power consumption at TRP, then power consumption is reduced, but measurement accuracy for mobility decisions deteriorates
Solution Approach 1:
The patent applies different reference signal configurations to different spatial locations and user groups. High-mobility users receive more frequent and denser reference signals for accurate mobility measurements, while low-mobility users receive reduced reference signal overhead. This localized quality adjustment reduces overall power consumption while maintaining measurement accuracy where needed
Solution Approach 2:
The patent changes reference signal parameters (density, periodicity, resource allocation) based on mobility states and service requirements. By dynamically adjusting these parameters, the system reduces power consumption during periods or for users where high measurement accuracy is not critical, while maintaining accuracy when mobility decisions require precise measurements
Data Source
AI summary
Systems, apparatuses, and methods are disclosed for receiving downlink control information (DCI) that may include an indication of a reference measurement resource (RMR), receiving an indication of a measurement configuration, and receiving an indication of a feedback resource configuration. A measurement report based on the indication of an RMR, an indication of a measurement configuration, and an indication of a feedback resource configuration may be generated and may be transmitted to a network device.