Group-Based Channel State Information Feedback Signaling
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Solution Overview
Problem
In cellular telecommunication systems, existing technologies are inefficient in reducing downlink signaling consumption and improving channel state information feedback efficiency, as they typically require each terminal to report CSI individually, leading to excessive downlink signaling usage.
Innovation Solution
Classifying multiple terminals into groups and transmitting a single triggering signaling to each group to report channel state information on a pre-configured resource block, allowing multiple terminals to feed back CSI on the same resource, thereby reducing downlink signaling consumption and enhancing feedback efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If each terminal reports channel state information individually, then the base station can obtain accurate channel state information from each terminal, but the downlink signaling consumption increases excessively
Solution Approach 1:
The patent merges multiple terminals into groups and combines their channel state information feedback into a single group-based reporting mechanism. Instead of each terminal individually reporting CSI which consumes excessive downlink signaling, terminals are grouped and their CSI is aggregated through group identifiers, allowing the base station to obtain channel state information from multiple terminals while significantly reducing downlink signaling consumption.
2Loss of energy
If multiple terminals are classified into groups and triggered by a single signaling, then downlink signaling consumption is reduced, but the complexity of managing group identifiers and resource allocation increases
Solution Approach 1:
The patent segments the terminal population into multiple groups based on channel characteristics and spatial relationships. By dividing terminals into distinct groups with unique group identifiers, the system manages complexity through structured segmentation rather than individual terminal management. This segmentation approach allows efficient grouping strategies that balance signaling reduction with manageable complexity in group identifier assignment and resource block allocation.
Data Source
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AI summary
A channel state information receiving method, a channel state information feedback method, a device, a base station and a terminal are provided. It is related to telecommunication field. The receiving method includes: obtaining group identifiers of groups into which multiple terminals having accessed to a base station are classified; transmitting a triggering signaling to one group of terminals having an identical group identifier; and receiving, on a pre-configured resource block, pieces of channel state information respectively fed back by the group of terminals having the identical group identifier in response to the triggering signaling. With the above technical solution, consumption of downlink signalings of the base station can be reduced and feedback efficiency of channel state information can be improved.