Beam Group Reporting Using PCI Differentiation Across TRPs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In conventional wireless communication systems, user equipment (UE) cannot differentiate reference signal (RS) resources transmitted from different transmission and reception points (TRPs), leading to RS resources in the same reported group coming from the same TRP and preventing simultaneous transmission and reception.
Innovation Solution
A method where the network node allocates a report configuration to the UE, allowing it to determine beam groups based on resource sets associated with different physical cell indexes (PCIs), enabling the UE to transmit reports that distinguish RS resources from different TRPs for simultaneous transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the UE reports beam groups without differentiating TRP information, then the reporting process is simple, but the RS resources in the same group come from the same TRP and cannot be used for simultaneous transmission and reception
Solution Approach 1:
The patent segments the beam group reporting by introducing PCI differentiation. Each beam group is divided into sub-groups based on PCI values, allowing the UE to identify and report TRP-specific beam information. This segmentation enables the network to allocate RS resources from different TRPs to the same beam group, achieving simultaneous transmission and reception while maintaining structured reporting.
2Productivity
If the UE differentiates RS resources from different TRPs using PCI information, then simultaneous transmission and reception becomes possible, but the measurement and reporting complexity increases
Solution Approach 1:
The patent applies preliminary action by having the network configure PCI information for each RS resource in advance through RRC signaling. The UE receives and stores this PCI configuration before performing measurements. This pre-configuration simplifies the measurement process, as the UE can directly associate measured RS resources with their corresponding PCIs without complex real-time differentiation, reducing reporting complexity while enabling TRP-specific beam group reporting.
Data Source
AI summary
A beam group reporting method is proposed. The network node may allocate a report configuration for the UE and transmit the allocated report configuration to the UE. The UE may perform the measurement based on the report configuration from the network node and determine at least one beam group based on a resource set associated with the report configuration and the measurement result. Each beam group may comprise two reference-signal (RS) resources respectively associating with different physical cell indexes (PCIs). Then, the UE may report a report comprising at least one beam group to the network node.