Comb Resource Interference Reporting for Cross-UE Measurement
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Solution Overview
Problem
Existing interference measurement methods in LTE-A systems are inadequate for measuring cross interference, such as inter-UE and inter-TRP interference, which occurs due to flexible duplex technologies leading to uplink-downlink configuration differences between cells, causing interference between transmission reception points and user equipments.
Innovation Solution
A method for cross interference measurement involving a base station configuring interference measurement resources to a terminal device, where the terminal device reports interference measurement results and identifiers to the base station, allowing the base station to determine the interference status accurately.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If flexible duplex technology is used to separately configure uplink and downlink transmission, then resource utilization is improved, but cross interference between cells increases
Solution Approach 1:
The patent segments the interference measurement process by dividing comb resources into multiple parts and measuring interference on each part separately. This allows the system to identify and coordinate specific interference sources (inter-UE and inter-TRP) while maintaining flexible duplex operation, thus resolving the contradiction between resource utilization and cross interference mitigation
Solution Approach 2:
The patent implements a feedback mechanism where terminal devices report interference measurement results and resource indicators back to the network side device. This feedback enables the network to coordinate scheduling and beam management to mitigate cross interference while maintaining flexible duplex resource allocation, thereby resolving the contradiction between productivity and harmful interference
2Loss of information
If interference measurement is performed on the entire resource, then measurement completeness is improved, but measurement precision for specific interference sources deteriorates
Solution Approach 1:
The patent divides a comb resource into multiple parts and performs interference measurement on each part separately. The terminal device reports measurement results for each part along with resource indicators, enabling the network to identify specific interference sources (inter-UE or inter-TRP) while maintaining complete interference assessment across the entire resource
Solution Approach 2:
The patent applies different measurement and reporting strategies to different parts of the comb resource based on local interference characteristics. By measuring and reporting on each part separately, the system achieves both comprehensive coverage (completeness) and detailed interference source identification (precision)
Data Source
Figure 1a
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AI summary
A reporting method, a device, and a system relate to the field of communications technologies. The method includes: after receiving first information sent by a second device, sending, by a first device, at least one reported value to a third device. The first information is used to indicate an interference measurement resource to a terminal device; and the reported value is obtained based on an interference measurement result that is on a part of the resource. Because the reported value is obtained based on the interference measurement result that is on the part of the resource, when the technical solution is applied to cross interference measurement, for example, inter-UE interference measurement, the terminal device can report a single inter-UE interference status to a base station. When obtaining, through measurement, measurement results of interference caused by a plurality of terminal devices to the terminal device, the terminal device can send a plurality of reported values to the base station, so that the base station obtains interference statuses corresponding to the plurality of terminal devices, to help increase possibility of successful data transmission of the terminal device in a communication process.