Control Signaling Resource Sequences for 5G RAN Overhead Reduction

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Solution Overview

Problem

Modern wireless communication technologies, particularly 5G, face challenges in managing control information flows that require high flexibility and low latency, often resulting in increased signaling overhead which can impact system performance.

Innovation Solution

The method involves using a resource sequence for transmitting control signaling, where the sequence is selected based on the type of control signaling (acknowledgment or resource requesting information), allowing for flexible control signaling with reduced overhead by representing control information through specific resource sequences.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If control information is transmitted using traditional signaling methods, then the information is provided reliably, but the signaling overhead increases and impacts system performance

Engineering Contradiction:

Improvecontrol information deliveryVSAvoidsignaling overhead

Core Design Contradiction:

ReliabilityVSLoss of substance

Solution Approach 1:

The patent uses different resource sequences (analogous to color changes) to represent different control signaling types. Instead of transmitting explicit control information bits, the system changes the resource sequence pattern based on the control signaling type (acknowledgment vs. resource requesting), allowing the receiver to decode the control information from the sequence selection itself, thereby reducing signaling overhead while maintaining reliability

Inventive Principle:

Principle #32Color changes

Solution Approach 2:

The patent changes the parameter of resource sequence selection to encode control information. By selecting different resource sequences from a predefined set based on the control signaling type, the system transmits control information implicitly through parameter changes rather than explicit signaling, reducing the overhead while ensuring reliable delivery

Inventive Principle:

Principle #35Parameter changes

2Adaptability or versatility

If flexibility is increased to provide high performance for low latency applications, then the system can handle diverse control information requirements, but the signaling overhead increases

Engineering Contradiction:

Improveflexibility for low latency applicationsVSAvoidsignaling overhead

Core Design Contradiction:

Adaptability or versatilityVSLoss of substance

Solution Approach 1:

The patent creates a universal resource sequence mechanism that serves multiple functions: it can represent acknowledgment information, resource requesting information, and potentially other control signaling types. This multi-functional approach provides the needed adaptability for various low-latency applications while using a single standardized mechanism, avoiding the need for separate signaling procedures for each control type and thereby reducing overall overhead

Inventive Principle:

Principle #6Universality (Multi-functionality)

Data Source

PatentUS11394514B2Control signaling handling for a RAN

Publication Date: 2022.07.19 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

The disclosure pertains to a method of operating a user equipment (10) in a radio access network. The method comprises transmitting control signaling utilising a resource sequence, the control signaling being of a control signaling type representing acknowledgement information and/or resource requesting information, wherein the resource sequence is selected from a set of resource sequences based on the control signaling type. The disclosure also pertains to related devices and methods.