Trigger-Based CSI Transmission Resource Optimization
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Solution Overview
Problem
In wireless communication networks, the transmission of channel state information (CSI) consumes a large amount of transmission resources due to the need for periodic or aperiodic reporting by user equipment (UE) to base stations (BS), especially with a large number of antenna ports.
Innovation Solution
A method where a terminal device determines whether to transmit CSI based on a trigger condition and requests transmission resources from a network device only when necessary, thereby reducing resource occupancy and increasing flexibility in CSI transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE reports CSI periodically or aperiodically to the BS, then the BS can select appropriate channels for down-link transmission, but the transmission resources are heavily occupied due to the large number of antenna ports and CSI tasks
Solution Approach 1:
The patent extracts only the essential CSI transmission instances by introducing trigger conditions. Instead of periodic or comprehensive aperiodic reporting, the UE transmits CSI only when specific triggering events occur (such as channel quality changes exceeding thresholds or specific uplink scheduling events), thereby extracting the necessary information while eliminating redundant transmissions and reducing resource consumption.
Solution Approach 2:
The patent applies partial action by implementing selective CSI reporting based on trigger conditions. Rather than requiring full periodic reporting or complete aperiodic reporting for all antenna ports, the system performs partial reporting only when triggered, achieving sufficient channel state information for reliable down-link selection while consuming fewer transmission resources.
2Ease of operation
If the BS allocates transmission resources for CSI reporting in advance or triggers reporting, then the UE can transmit CSI, but the system lacks flexibility and occupies plenty of transmission resources
Solution Approach 1:
The patent introduces dynamic trigger conditions that allow the CSI reporting mechanism to adapt to changing channel conditions and traffic requirements. The trigger conditions can be configured based on channel quality thresholds, scheduling events, or other dynamic parameters, enabling the system to flexibly adjust when CSI reporting occurs rather than following rigid periodic schedules or static allocation patterns.
Solution Approach 2:
The patent changes the operational parameters of CSI reporting by introducing configurable trigger conditions. These parameters include threshold values for channel quality, timing relationships with uplink scheduling, and other configurable settings that allow the system to adapt resource allocation to actual needs, transforming the rigid resource allocation into a flexible, condition-based mechanism.
Data Source
AI summary
Provided are a method and a device for transmitting or receiving channel state information (CSI), where the method for transmitting CSI includes: transmitting, by a terminal device, a resource request message to a network device according to the CSI meeting a CSI trigger condition; receiving, by the terminal device, a resource configuration message from the network device; transmitting, by the terminal device, the CSI to the network device according to the transmission resource. In the method for transmitting CSI according to the embodiments of the present disclosure, the terminal device determines whether to transmit the CSI according to whether the CSI meets the trigger condition for CSI transmission, and requests the transmission resource for transmitting the CSI from the network device, thereby reducing the transmission resource occupied by the CSI transmission and increasing the flexibility in transmitting the CSI.