SRS Transmission Path Adjustment for Interference Mitigation

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Solution Overview

Problem

In 5G communication systems, Sounding Reference Signals (SRS) are often interfered with, leading to inadequate resource allocation by base stations, which negatively impacts the transmission performance of terminal devices due to the complexity of multiple antennas and channels.

Innovation Solution

A method for acquiring channel quality parameters and determining interfered scenarios in SRS transmission paths, allowing for adjustments to reduce interference and improve resource allocation accuracy.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If Multiple Input Multiple Output (MIMO) technology with multiple antennas is adopted, then spatial multiplexing gain and transmission performance are improved, but the SRS is easily interfered by various factors in transmission path

Engineering Contradiction:

Improvetransmission performanceVSAvoidinterference to SRS

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent implements dynamic transmission path selection by continuously monitoring channel quality parameters and adjusting the SRS transmission path in real-time based on current channel conditions. This dynamic adaptation allows the system to select optimal paths that avoid interference, resolving the contradiction between utilizing multiple antennas for high performance and avoiding transmission interference.

Inventive Principle:

Principle #15Dynamics

Solution Approach 2:

The patent changes the transmission path parameter based on channel quality assessment. By evaluating channel quality parameters and selecting different transmission paths according to the assessed quality, the system optimizes SRS transmission to avoid interference while maintaining the benefits of MIMO technology.

Inventive Principle:

Principle #35Parameter changes

2Measurement precision

If the SRS is transmitted through multiple antennas and channels, then resource allocation accuracy can be improved, but the SRS is easily interfered resulting in less resources allocated

Engineering Contradiction:

Improveresource allocation accuracyVSAvoidSRS transmission reliability

Core Design Contradiction:

Measurement precisionVSReliability

Solution Approach 1:

The patent performs preliminary assessment of channel quality parameters before SRS transmission and pre-selects the optimal transmission path. This preliminary action ensures that the SRS is transmitted through the best available path, maintaining both measurement precision for resource allocation and reliability of transmission.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements a feedback mechanism where channel quality parameters are continuously monitored and used to adjust the transmission path selection. This feedback loop ensures that the system maintains accurate resource allocation measurements while compensating for interference through adaptive path selection, thereby improving transmission reliability.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20230283428A1SRS transmission method, terminal, and storage medium

Publication Date: 2023.09.07 ZTE CORP

AI summary

A Sounding Reference Signal (SRS) transmission method, a terminal device and a storage medium are disclosed. The SRS transmission method may include: acquiring a channel quality parameter of a transmission path of an SRS (S100); determining an interfered scenario of the SRS according to the channel quality parameter, and performing an adjustment policy corresponding to the determined interfered scenario (S200).