Regional Access Information Table for Cellular Network Energy Reduction

Resolve Bottlenecks,
Find Innovative SolutionsGenerate Solutions

Solution Overview

Problem

The existing access information table (AIT) in 5G cellular networks is large and power-consuming for communication devices to detect due to the inclusion of all possible parameter combinations for all access nodes, leading to high energy consumption during network access.

Innovation Solution

Associating the AIT with specific regions in the cellular network where access nodes have common configurations, using a first signature sequence to indicate the region and a second signature sequence to map to specific entries within the AIT, reducing the payload and facilitating region detection and data transmission.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the AIT includes all possible parameter combinations for all access nodes, then the AIT supports all possible access configurations, but the AIT payload becomes very large and detection becomes time and power-consuming

Engineering Contradiction:

Improveaccess configuration supportVSAvoidenergy consumption

Core Design Contradiction:

Adaptability or versatilityVSUse of energy by moving object

Solution Approach 1:

The patent divides the cellular network into multiple regions, each with its own AIT containing only the parameter combinations relevant to that region. Instead of one large AIT covering all possible configurations, multiple smaller regional AITs are created, reducing the payload size that devices need to detect while maintaining comprehensive coverage across the entire network.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Each region is assigned specific access configurations and parameter combinations that are locally relevant to that region's characteristics. This allows the AIT to be tailored to local needs rather than including all possible configurations everywhere, reducing overall payload size while maintaining adaptability where needed.

Inventive Principle:

Principle #3Local quality

2Adaptability or versatility

If the AIT includes all possible parameter combinations for all access nodes, then the AIT supports all possible access configurations, but the detection process becomes time-consuming

Engineering Contradiction:

Improveaccess configuration supportVSAvoiddetection time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

By segmenting the network into regions with separate AITs, the detection process is divided into two stages: first detecting the region identifier (quick), then accessing the corresponding regional AIT (smaller payload). This segmentation reduces the time required compared to searching through a single large AIT containing all possible configurations.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

The region identifier is detected first as a preliminary step before accessing the full AIT. This preliminary action allows devices to quickly determine which regional AIT to access, reducing overall detection time by avoiding unnecessary processing of unrelated configuration data.

Inventive Principle:

Principle #10Preliminary action

3Use of energy by stationary object

If the AIT is transmitted with long periodicity to reduce network energy consumption, then network energy consumption is reduced, but the AIT update frequency decreases

Engineering Contradiction:

Improvenetwork energy consumptionVSAvoidAIT update frequency

Core Design Contradiction:

Use of energy by stationary objectVSProductivity

Solution Approach 1:

The AIT is segmented into regional units that can be independently updated and transmitted. This allows the network to transmit smaller regional AITs more frequently if needed, or maintain long periodicity for stable regions, providing flexibility in balancing energy consumption against update frequency requirements.

Inventive Principle:

Principle #1Segmentation

Data Source

PatentUS10244460B2Access information table region for access to cellular networks

Publication Date: 2019.03.26 TELEFONAKTIEBOLAGET LM ERICSSON (PUBL)

AI summary

The embodiments disclose a method for an access node of a region from a plurality of regions in a cellular network to control access to the cellular network, the method comprising generating an access information table (AIT); sending the AIT to a plurality of communication devices, sending a first signature sequence; and sending a second signature sequence. The embodiments also disclose a method for a communication device to access cellular network, the method comprising detecting one or more of first signature sequences; selecting a first signature sequence; determining a region according to the selected first signature sequence; selecting an AIT, detecting a second signature sequence; determining an entry of the selected AIT according to the detected second signature sequence; and accessing the cellular network. The access node and communication device thereof are also disclosed according to the embodiments.