ZP/NZP CSI-RS Association Reporting for Targeted Beam Scheduling
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Solution Overview
Problem
Existing beam management technologies in wireless communications fail to accurately learn correlations between interference in backhaul and cross-link scenarios, leading to ineffective resource scheduling and increased interference.
Innovation Solution
A measurement reporting method that involves reporting an association relationship between zero power-reference signal (ZP-CSI-RS) and non-zero power-reference signal (NZP-CSI-RS) resources, allowing for targeted resource scheduling to avoid strong mutual interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If existing beam grouping method is used, then downlink transmit beams can be grouped based on reference signal, but the base station cannot learn correlations between interference in backhaul and cross-link scenarios
Solution Approach 1:
The patent segments the interference measurement process by introducing separate measurement resource configurations for different interference scenarios (backhaul link interference and cross-link interference). This allows the terminal to measure and report correlations separately for each scenario, enabling the base station to learn specific interference patterns without requiring a single complex measurement mechanism.
Solution Approach 2:
The patent introduces an intermediary measurement reporting mechanism where the terminal device acts as a mediator between the interference sources and the base station. The terminal measures interference from neighboring cells and reports the correlation information to the serving base station, which then uses this information for resource scheduling decisions, avoiding direct interference without requiring interfering base stations to communicate directly.
2Productivity
If targeted resource scheduling is implemented to avoid interference, then resource scheduling effectiveness improves, but the complexity of measurement and reporting increases
Solution Approach 1:
The patent applies preliminary action by configuring measurement resources and reporting parameters in advance through dedicated configuration messages. The base station pre-configures the terminal with measurement resource sets, reporting formats, and triggering conditions before actual interference measurement and reporting occurs. This allows complex interference measurement to be performed systematically without real-time decision complexity.
Solution Approach 2:
The patent utilizes parameter changes by dynamically adjusting measurement and reporting parameters based on network conditions. The base station can configure different measurement resource sets, reporting formats, and thresholds according to specific interference scenarios, allowing flexible adaptation without fixed complex procedures. Parameters such as measurement bandwidth, resource periodicity, and reporting triggers can be modified to balance measurement accuracy and system complexity.
Data Source
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AI summary
A measurement reporting method and a device are disclosed. The method includes: receiving, by a first device, configuration information from a second device, where the configuration information is used by the first device to report information about an association relationship between a zero power-reference signal resource and a non zero power-reference signal resource; and reporting, by the first device, the information about the association relationship based on the configuration information. In this solution, the second device can accurately obtain resources on which the first device is interfered with, and perform targeted resource scheduling, to avoid scheduling of beams with strong mutual interference in two cells, thereby reducing interference.