Dynamic CSI Reporting Frequency Adjustment for Wireless Devices

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Solution Overview

Problem

Wireless devices experiencing decreased performance due to unfavorable antenna parameters and location within a wireless network require a system to dynamically increase CSI reporting frequency to improve resource allocation and reduce interference.

Innovation Solution

A processing node determines the location and sector power ratio of wireless devices, dynamically adjusting their CSI reporting frequency to enable more frequent reporting when in undesirable locations, thereby improving performance and resource utilization.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If wireless devices in undesirable locations increase CSI reporting frequency, then resource allocation and interference management improve, but network resource consumption increases

Engineering Contradiction:
Improvequality of serviceVSAvoidnetwork resource consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

The system dynamically adjusts CSI reporting frequency based on real-time assessment of device location and antenna parameters. Devices in undesirable locations (high SPR areas) are assigned higher reporting frequencies, while devices in desirable locations maintain lower frequencies. This dynamic adaptation ensures QoS improvement where needed while minimizing overall network resource consumption.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

Different reporting frequencies are assigned to different spatial locations based on local antenna characteristics. The system identifies specific geographic areas with high sector power ratios and applies increased reporting requirements only to devices in those localized regions, rather than uniformly increasing reporting for all devices. This localized approach targets QoS improvements precisely where antenna performance deficiencies exist.

Inventive Principle:
Principle #3Local quality

2Productivity

If CSI reporting frequency is increased for devices in undesirable locations, then resource reallocation responsiveness improves, but signaling overhead increases

Engineering Contradiction:
Improveresource reallocation responsivenessVSAvoidsignaling overhead
Core Design Contradiction:
ProductivityVSLoss of information

Solution Approach 1:

The system implements dynamic reporting frequency adjustment where the reporting interval is modified based on device location relative to antenna sector power ratios. Devices experiencing poor channel conditions due to high SPR are configured with shorter reporting intervals, enabling the network to respond more quickly to channel variations and perform timely resource reallocation, while avoiding unnecessary signaling from devices in good locations.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes the temporal parameter (reporting frequency) of CSI reports based on spatial characteristics of the wireless environment. By adjusting the reporting interval parameter according to device location and antenna performance metrics, the system optimizes the balance between responsiveness to channel conditions and signaling overhead generation.

Inventive Principle:
Principle #35Parameter changes

Data Source

PatentUS11405087B1Systems and methods for dynamically adjusting reporting periodicity
Publication Date: 2022.08.02 SPRINT SPECTRUM LLC
  • US11405087B1 patent drawing
  • US11405087B1 patent drawing
  • US11405087B1 patent drawing

AI summary

Systems and methods are provided for dynamically changing channel state information (CSI) reporting periodicity for a wireless device communicating with an access node within a wireless network. The methods and systems identify a wireless device in an undesirable location based on an antenna a sector power ratio of an antenna deployed by the access node within the wireless network. Further, the method determines an existing CSI reporting frequency for the wireless device reporting to the access node and dynamically, in response to the determination, changes the CSI reporting frequency for the wireless device to enable more frequent CSI reporting to the access node.