Cross-RAT Measurement Sharing for Resource-Limited Node B Cells
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Base stations may lack sufficient resources to schedule UE transmissions of reference signals, leading to inadequate channel estimation and reduced communication reliability.
Innovation Solution
A measurement sharing procedure is implemented between cells associated with different or same radio access technologies, where a first cell requests channel measurements from a second cell with sufficient resources, enabling improved communication parameters and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the first cell schedules UE transmissions of reference signals, then channel estimation can be performed, but the first cell requires sufficient available resources which it does not have
Solution Approach 1:
The patent introduces a second cell as an intermediary to perform channel measurements on behalf of the first cell. The second cell schedules UE transmissions of reference signals and generates channel measurements, then shares these measurements with the first cell. This mediator approach allows the first cell to obtain channel estimation capabilities without directly consuming its own limited resources.
Solution Approach 2:
The second cell performs channel measurements for the UE and generates measurement results that serve both cells. By having the second cell conduct the measurements and then sharing results with the first cell, the system enables resource-efficient channel estimation where the measuring cell serves itself and simultaneously provides service to neighboring cells.
2Reliability
If the first cell performs channel measurements directly, then communication reliability improves, but resource consumption increases beyond available capacity
Solution Approach 1:
The second cell acts as a mediator that performs the resource-intensive channel measurement operations. The first cell maintains communication reliability by receiving and utilizing the channel measurements generated by the second cell, without directly consuming the resources needed for measurement operations.
3Productivity
If the first cell obtains channel measurements from the second cell, then resource efficiency improves, but inter-cell coordination complexity increases
Solution Approach 1:
The measurement sharing mechanism establishes the second cell as an intermediary that handles measurement operations and result distribution. This standardized intermediary approach enables resource efficiency through measurement sharing, while the protocol framework manages the coordination complexity between cells.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A first cell associated with a first radio access technology (RAT) may transmit a measurement sharing request to a second cell associated with a second RAT based on a resource availability of the first cell. The measurement sharing request may indicate a request for the second cell to generate one or more channel measurements for a user equipment (UE). In response to the measurement sharing request, the second cell may transmit a measurement sharing acknowledgement or a measurement sharing rejection to the first cell based on a resource availability of the second cell. If the second cell transmits a measurement sharing acknowledgement to the first cell, the second cell may generate the requested channel measurements for the UE and may transmit an indication of the requested channel measurements to the first cell.