Adaptive Frequency Domain Resource Configuration for Relay Nodes

Solution Overview

Problem

Existing wireless communication systems face challenges in configuring resources for relay nodes, particularly in terms of latency, signaling overhead, and power consumption.

Innovation Solution

The system supports adaptive frequency domain resource configuration for relay nodes by allowing a control node to activate resource configurations at relay nodes, which includes transmitting indications of resource configurations associated with resource block sets and time domain patterns to the relay nodes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If continuous resource configuration updates are transmitted to relay nodes, then resource allocation accuracy is improved, but signaling overhead increases

Engineering Contradiction:

Improveresource allocation accuracyVSAvoidsignaling overhead

Core Design Contradiction:

Manufacturing precisionVSLoss of information

Solution Approach 1:

The patent applies preliminary action by pre-configuring multiple resource configurations at the relay node before they are needed. The network device provides a set of resource configurations including resource block sets and time domain patterns in advance, so when resource allocation needs to be updated, the relay node can quickly switch to a pre-configured option without requiring detailed reconfiguration signaling.

Inventive Principle:

Principle #10Preliminary action

2Manufacturing precision

If frequent resource configuration updates are transmitted, then resource allocation accuracy is improved, but latency increases

Engineering Contradiction:

Improveresource allocation accuracyVSAvoidlatency

Core Design Contradiction:

Manufacturing precisionVSLoss of time

Solution Approach 1:

The patent applies preliminary action by pre-configuring multiple resource configurations at the relay node before they are needed. The network device provides a set of resource configurations including resource block sets and time domain patterns in advance, so when resource allocation needs to be updated, the relay node can quickly switch to a pre-configured option without requiring detailed reconfiguration signaling.

Inventive Principle:

Principle #10Preliminary action

3Productivity

If adaptive resource configuration is implemented, then system efficiency is improved, but device complexity increases

Engineering Contradiction:

Improvesystem efficiencyVSAvoidconfiguration complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The patent applies dynamics by enabling the relay node to dynamically select and switch between multiple pre-configured resource configurations based on current channel conditions and traffic requirements. The network device can activate different resource configurations from the pre-configured set, allowing the system to adapt to changing conditions without requiring complex real-time configuration generation and processing.

Inventive Principle:

Principle #15Dynamics

Data Source

PatentUS12308935B2Supporting adaptive frequency domain resource configuration for a relay node

Publication Date: 2025.05.20 QUALCOMM INC

AI summary

Methods, systems, and devices for wireless communication are described. A control node may transmit, to a first relay node, an indication to communicate according to a first resource configuration of a set of resource configurations, where each resource configuration of the set is associated with a respective resource block set and a respective time domain pattern. In some examples, each time domain pattern may indicate, for each symbol of a respective set of symbols associated with each time domain pattern, a resource type associated with availability of each symbol for communication by the first relay node with a second relay node. The first relay node may communicate according to the first resource configuration based on receiving the indication to communicate according to the first resource configuration.