Dynamic SRS Guard Gap Configuration for Antenna Switching

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Solution Overview

Problem

In 5G wireless communication systems, the configuration of guard gaps between SRS resource sets is inefficient, leading to network resource waste and poor communication quality due to unreasonable allocation, especially when multiple antennas are involved.

Innovation Solution

A method and apparatus for dynamically configuring guard gaps between SRS resource sets based on channel quality, transmit power information, and configuration requests of terminals, allowing for optimized antenna switching and resource utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of manufacture

If a fixed guard gap is allocated between SRS resource sets for all terminals, then the configuration is simple, but network resources are wasted and communication quality deteriorates due to unreasonable allocation

Engineering Contradiction:
Improveconfiguration simplicityVSAvoidnetwork resource utilization
Core Design Contradiction:
Ease of manufactureVSProductivity

Solution Approach 1:

The patent transforms the fixed guard gap configuration into a dynamic one by introducing a feedback mechanism. The terminal reports its actual antenna switching time requirement to the network device, which then adjusts the guard gap configuration accordingly. This dynamic adjustment ensures that the guard gap is optimized for each terminal's specific needs rather than using a uniform fixed value, thereby improving network resource utilization while maintaining configuration simplicity through automated adaptation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements a feedback loop where the terminal provides information about its antenna switching performance to the network device. Based on this feedback, the network device adjusts the guard gap configuration to match the actual requirements. This feedback mechanism resolves the contradiction by enabling resource optimization without complicating the configuration process, as the adjustment is automatically based on terminal-reported data.

Inventive Principle:
Principle #23Feedback

2Ease of manufacture

If a fixed guard gap is allocated between SRS resource sets for all terminals, then the configuration is simple, but communication quality deteriorates due to unreasonable allocation

Engineering Contradiction:
Improveconfiguration simplicityVSAvoidcommunication quality
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The patent makes the guard gap configuration dynamic by having the network device adjust it based on terminal-specific feedback about antenna switching requirements. This ensures that each terminal receives the appropriate guard gap size needed for reliable communication, improving communication quality while maintaining configuration simplicity through automated, data-driven adjustments rather than manual reconfiguration.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The feedback mechanism allows the system to continuously monitor and adjust guard gap configurations based on actual terminal performance. This resolves the reliability issue by ensuring that the guard gap is always appropriately sized for each terminal's capabilities, preventing communication quality deterioration while keeping the configuration process simple through automated adaptation.

Inventive Principle:
Principle #23Feedback

3Productivity

If multiple SRS resource sets are transmitted in the same slot, then resource utilization is high, but antenna switching time requirements cannot be met

Engineering Contradiction:
Improveresource utilizationVSAvoidantenna switching performance
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent applies preliminary action by having the terminal report its antenna switching time requirements in advance before the SRS resource sets are scheduled. The network device uses this advance information to configure appropriate guard gaps, ensuring that when multiple SRS resource sets are transmitted in the same slot, the antenna switching can be completed reliably. This resolves the contradiction by preparing the configuration ahead of time based on terminal capabilities.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system dynamically adjusts the guard gap configuration based on real-time feedback about antenna switching performance. When multiple SRS resource sets are scheduled in the same slot, the network device modifies the guard gap to accommodate the actual switching time requirements, thereby maintaining both high resource utilization and reliable antenna switching performance through continuous adaptation.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentUS20250343720A1Guard gap configuration method and apparatus, and communication device and storage medium
Publication Date: 2025.11.06 BEIJING XIAOMI MOBILE SOFTWARE CO LTD
  • US20250343720A1 patent drawing
  • US20250343720A1 patent drawing
  • US20250343720A1 patent drawing

AI summary

The embodiments of the present disclosure provide a guard interval configuration method and apparatus, and a communication device and a storage medium. The method is executed by a network device. The method comprises: sending configuration information of a guard interval to a terminal according to at least one of channel quality, transmission power information of the terminal and a configuration request of the terminal, wherein the configuration information is used for determining a guard interval between sounding reference signal (SRS) resource sets, and the configuration request is determined by the terminal according to the transmission power information of the terminal (S12).