CSI-RS Configuration for DwPTS and Normal Subframes
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Solution Overview
Problem
The complexity of transmitting Channel State Information-Reference Signal (CSI-RS) in Downlink Pilot Time Slot (DwPTS) within existing CSI-RS transmission scenarios, where CSI-RS is only transmitted under one resource configuration and also on downlink normal subframes, complicates the transmission process.
Innovation Solution
A method and device that configure CSI-RS by generating and transmitting signaling with configuration information including CSI-RS port number, resource pattern, and subframe configuration, allowing CSI-RS to be transmitted on both DwPTS and downlink normal subframes, thereby simplifying the transmission process across various CSI-RS transmission scenarios.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If CSI-RS is transmitted on both DwPTS and downlink normal subframes under one resource configuration, then channel measurement precision is improved, but transmission complexity increases
Solution Approach 1:
The patent segments the transmission configuration by introducing separate higher-layer parameters for DwPTS CSI-RS and normal subframe CSI-RS. This allows independent configuration of resource patterns, subframe offsets, and transmission parameters for each type, thereby reducing the complexity of managing dual transmissions while maintaining measurement precision across both channels.
2Adaptability or versatility
If CSI-RS transmission is configured for multiple scenarios, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent creates a universal configuration framework where a single higher-layer parameter structure can accommodate both DwPTS and normal subframe CSI-RS transmissions. The configuration mechanism is designed to handle multiple transmission scenarios through unified parameter management, enabling the system to adapt to different transmission conditions without requiring separate complex configuration procedures for each scenario.
Data Source
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AI summary
The embodiments of the invention provide a method of configuring a channel state information reference signal (CSI-RS) transmitted on a pilot and a device utilizing the same. The method includes: a base station generates a signaling including configuration information of a CSI-RS; and the base station transmits the signaling including the configuration information of the CSI-RS; wherein the configuration information includes a CSI-RS port number, CSI-RS resource patterns and a CSI-RS subframe configuration; the CSI-RS resource patterns include at least one of the following: CSI-RS resource patterns transmitted on a normal downlink subframe and CSI-RS resource patterns transmitted on a downlink pilot time slot (DwPTS). The CSI-RS subframe configuration includes a CSI-RS subframe configuration transmitted on both the DwPTS and the normal downlink subframe. The embodiments resolve a complicated problem of transmitting CSI-RS in DwPTS in a CSI-RS transmission scenario, reducing complexity of transmitting CSI-RS in DwPTS.