Terminal Capability Reporting for NC-JT CSI in 5G Networks
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately measuring and reporting channel state information (CSI) between base stations and terminals, particularly in 5G communication systems, which affects network coordination and performance.
Innovation Solution
A method where a terminal in a wireless communication system transmits a terminal capability report to a base station, indicating support for non-coherent joint transmission (NC-JT) CSI reporting. The base station then requests NC-JT CSI reports based on the terminal's capabilities, and the terminal determines and transmits the CSI reports accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If non-coherent joint transmission (NC-JT) CSI reporting is implemented, then network coordination accuracy and system performance are improved, but terminal capability complexity and reporting overhead increase
Solution Approach 1:
The patent segments the CSI reporting process into distinct capability indication and actual reporting phases. The terminal first indicates its NC-JT CSI reporting capability through a capability report, allowing the network to configure appropriate parameters without overwhelming the terminal with complex configurations upfront.
Solution Approach 2:
The terminal performs preliminary capability indication before actual CSI reporting. By reporting its NC-JT support capability in advance, the terminal enables the network to prepare appropriate configuration parameters, reducing the complexity of real-time decision-making during CSI reporting.
2Productivity
If NC-JT CSI report requests are sent based on terminal capability, then resource allocation efficiency is improved, but signaling overhead increases
Solution Approach 1:
The patent implements a feedback mechanism where the terminal's capability report provides information back to the network, enabling the base station to make informed decisions about whether to send NC-JT CSI report requests. This feedback loop optimizes resource allocation by matching network requests with terminal capabilities.
Solution Approach 2:
The terminal autonomously determines whether to report NC-JT CSI based on the received report request and its own capability. This self-service approach reduces the need for extensive network control signaling, as the terminal independently makes the decision to report or not report based on pre-configured criteria.
3Reliability
If terminal capability report is transmitted, then network awareness of terminal capabilities is improved, but uplink signaling overhead increases
Solution Approach 1:
The patent extracts only the essential capability information (NC-JT CSI reporting support) from the terminal and reports it to the network. Rather than reporting all terminal capabilities, only the relevant NC-JT capability is extracted and communicated, minimizing uplink signaling overhead while maintaining network coordination reliability.
Data Source
AI summary
The present disclosure relates to a communication method and system for converging a 5th-Generation (5G) communication system for supporting higher data rates beyond a 4th-Generation (4G) system with a technology for Internet of Things (IoT). The present disclosure may be applied to intelligent services based on the 5G communication technology and the IoT-related technology, such as smart home, smart building, smart city, smart car, connected car, health care, digital education, smart retail, security and safety services. The disclosure relates to a method for processing a control signal in a wireless communication system, and relates to a control signal processing method including: receiving a first control signal transmitted from the base station; processing the received first control signal; and transmitting a second control signal generated based on the processing to the base station.