Implicit Beam Switching Reliability in Wireless Networks

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Solution Overview

Problem

Wireless communication networks face interference and performance degradation due to increasing demand for mobile broadband access, leading to congested networks and reduced reliability in beam switching operations.

Innovation Solution

Implementing implicit beam switching operations, where wireless communication devices transmit CSI reports and monitor for implicit beam switch indications within a time window to switch between beams based on accepted TCI information, reducing network overhead and improving reliability.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of energy

If implicit beam switching operations are implemented to reduce network overhead, then network resource efficiency is improved, but beam switching reliability may deteriorate due to increased interference and network congestion

Engineering Contradiction:

Improvenetwork overheadVSAvoidbeam switching reliability

Core Design Contradiction:

Loss of energyVSReliability

Solution Approach 1:

The patent implements feedback mechanisms where the wireless communication device monitors for implicit beam switch indications from the network device within a specified time window. The network device provides feedback regarding acceptance of TCI information indicated by CSI reports, allowing the system to confirm or reject beam switching decisions based on current channel conditions and network state, thereby maintaining reliability while using implicit switching.

Inventive Principle:

Principle #23Feedback

Solution Approach 2:

The system performs preliminary actions by configuring time windows and TCI state information in advance before actual beam switching occurs. The network device and wireless communication device are pre-configured with monitoring parameters and TCI states, enabling rapid implicit beam switching when needed while ensuring reliability through pre-established protocols and validation mechanisms.

Inventive Principle:

Principle #10Preliminary action

2Adaptability or versatility

If beam switching operations are performed frequently to adapt to changing channel conditions, then communication quality is improved, but switching latency and failure rate increase due to network congestion

Engineering Contradiction:

Improvechannel condition adaptabilityVSAvoidbeam switching latency

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The patent extracts the beam switching decision-making process from explicit multi-step procedures and implements it through implicit mechanisms. By using pre-configured TCI states and monitoring for simple implicit indications rather than full beam management messages, the system achieves rapid beam adaptation to changing channel conditions while minimizing the time and signaling overhead required for switching operations.

Inventive Principle:

Principle #2Taking out (Extraction)

3Productivity

If network resources are allocated to handle increasing mobile broadband demand, then network capacity is improved, but interference and congestion increase leading to reduced beam switching performance

Engineering Contradiction:

Improvenetwork capacityVSAvoidinterference and congestion

Core Design Contradiction:

ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent implements self-service mechanisms where the wireless communication device autonomously monitors for implicit beam switch indications and performs beam switching based on pre-configured parameters without requiring extensive network intervention. This reduces signaling overhead and network resource consumption, allowing the system to adapt to interference and congestion conditions while maintaining beam switching performance even as network capacity increases.

Inventive Principle:

Principle #25Self-service

Data Source

PatentUS20240340053A1Reliability enhancements for implicit beam switch

Publication Date: 2024.10.10 QUALCOMM INC

AI summary

This disclosure provides systems, methods, and devices for wireless communication that support reliability enhancements for implicit beam switching operations. In a first aspect, a method of wireless communication includes transmitting, by a wireless communication device, a channel state information (CSI) report using a first beam; monitoring, by the wireless communication device, for an implicit beam switch indication during a time window, the implicit beam switch indication corresponding to acceptance of Transmission Configuration Indicator (TCI) information indicated by the CSI report; and switching, by the wireless communication device, to a second beam from the first beam based on the implicit beam switch indication, the second beam different from the first beam. Other aspects and features are also claimed and described.