CSI Report Transmission via Sequence Parameter Hopping

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Solution Overview

Problem

In multiple-input-multiple-output (MIMO) wireless communications, the challenge is to efficiently transmit channel state information (CSI) reports without collisions between uplink channel resources, which can prevent successful reporting and reduce transmission efficiency.

Innovation Solution

A method is provided to determine sequence parameters for a reference signal that hops every X time domain symbols, allowing for the selection of optimal channel resources for CSI report transmission, either by choosing a resource with the minimum number of resource elements or by merging multiple channel resources into a new resource to avoid collisions and maximize transmittable bits.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple CSI reports are transmitted on corresponding uplink channel resources, then CSI feedback performance is improved, but resource collisions occur between uplink channels

Engineering Contradiction:

ImproveCSI feedback performanceVSAvoidresource collision

Core Design Contradiction:

ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent applies dynamics by making the sequence parameter change over time through hopping. The sequence parameter associated with the reference signal hops once every X time domain symbols, allowing the system to dynamically adapt and avoid static resource allocation conflicts. This temporal variation enables the same time-frequency resources to be used by different users at different times without collision.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the sequence parameter to generate different reference signal sequences. By modifying the sequence parameter that hops in time domain, the system creates distinct reference signal patterns for different terminal devices, enabling collision-free transmission on the same physical resources. This parameter variation is the core mechanism for resolving resource conflicts.

Inventive Principle:

Principle #35Parameter changes

2Productivity

If sequence parameter hops every X time domain symbols, then resource utilization is improved, but sequence parameter management complexity increases

Engineering Contradiction:

Improveresource utilizationVSAvoidsequence parameter management

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent implements self-service by using pre-configured hopping patterns and parameters that enable terminal devices to autonomously generate their reference signal sequences without requiring complex centralized coordination. The sequence parameter hopping follows predetermined rules that simplify management while maintaining high resource utilization.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS12107652B2Channel state information (CSI) report sending and receiving methods, devices and electronic devices

Publication Date: 2024.10.01 ZTE CORP

AI summary

Provided are methods and devices for transmitting a reference signal. The method comprises: determining a sequence parameter associated with the reference signal, where the sequence parameter is used for generating a sequence, and the sequence parameter hops once every X time domain symbols, where X is an integer greater than or equal to 1; determining the reference signal according to the determined sequence parameter; and transmitting the reference signal.