NES Paging Control for Idle and Inactive Wireless Terminals

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Solution Overview

Problem

The increasing demand for high-speed and low-latency wireless communication services in 5G and beyond necessitates efficient power management in wireless communication systems to reduce network energy consumption, particularly in base stations and user equipment.

Innovation Solution

Implementing a Network Energy Saving (NES) mode that includes configuring a NES cycle as an integer multiple of a Discontinuous Reception (DRX) cycle, selectively activating/deactivating paging and random access resources, and using differentiated access barring bits for user equipment supporting energy-saving modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the base station continuously transmits paging messages and maintains random access resources, then user equipment can maintain good connection quality and access reliability, but network energy consumption increases

Engineering Contradiction:

Improveconnection reliabilityVSAvoidbase station energy consumption

Core Design Contradiction:

ReliabilityVSUse of energy by stationary object

Solution Approach 1:

The base station activates paging messages and random access resources periodically according to a configured cycle rather than continuously. During inactive periods, these resources are deactivated to save energy, while during active periods they are restored to ensure reliable connection. This periodic activation/deactivation pattern resolves the contradiction between maintaining connection reliability and reducing energy consumption.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The base station dynamically adjusts the state of paging messages and random access resources between active and inactive states based on configured cycles and conditions. This dynamic switching allows the system to adapt between energy-saving mode (inactive state) and service-providing mode (active state), resolving the contradiction by making resources flexible rather than static.

Inventive Principle:

Principle #15Dynamics

2Speed

If user equipment continuously monitors paging messages, then access responsiveness is improved, but device power consumption increases

Engineering Contradiction:

Improveaccess responsivenessVSAvoiduser equipment power consumption

Core Design Contradiction:

SpeedVSUse of energy by moving object

Solution Approach 1:

User equipment monitors paging messages periodically based on the configured cycle received from the base station, rather than continuously. During inactive periods of the cycle, the UE can enter sleep mode to save power, while during active periods it wakes up to monitor paging messages, ensuring timely access response when needed.

Inventive Principle:

Principle #19Periodic action

Solution Approach 2:

The base station pre-configures the NES cycle and activation patterns to user equipment in advance. This allows the UE to know when to wake up and monitor paging messages without continuously checking, thereby reducing power consumption while maintaining access responsiveness according to the predetermined schedule.

Inventive Principle:

Principle #10Preliminary action

3Area of stationary object

If the base station activates all paging and random access resources, then network service coverage is maximized, but energy consumption increases

Engineering Contradiction:

Improveservice coverage areaVSAvoidbase station energy consumption

Core Design Contradiction:

Area of stationary objectVSUse of energy by stationary object

Solution Approach 1:

Instead of uniformly activating all resources across the entire network coverage area, the base station selectively activates paging messages and random access resources only in specific time periods and for specific user groups that require service. This localized activation approach maintains adequate service coverage for active users while avoiding energy waste in inactive areas.

Inventive Principle:

Principle #3Local quality

Solution Approach 2:

The base station activates only the necessary portion of paging and random access resources during each active period of the NES cycle, rather than maintaining full resource activation continuously. This partial activation provides sufficient service coverage for current users while significantly reducing energy consumption compared to full continuous activation.

Inventive Principle:

Principle #16Partial or excessive action

Data Source

PatentUS20250365658A1Method and device for NES mode operation of idle mode and inactive mode terminal in wireless communication system

Publication Date: 2025.11.27 SAMSUNG ELECTRONICS CO LTD

AI summary

The present disclosure relates to a 5G or 6G mobile communication system for supporting higher data transmission rates. A method performed by means of a base station in a wireless communication system, of the present disclosure, comprises the steps of: transmitting either a first type master information block (MIB) including a first access barring bit that indicates whether to permit cell connection of all types of terminals, or a second type MIB including a second access barring bit that indicates whether to permit cell connection of a terminal supporting an energy-saving mode of the base station; and performing a cell connection procedure with at least one terminal having received either the first type MIB or the second type MIB, wherein the first access barring bit in the second MIB cannot be used in the terminal supporting an energy-saving mode of the base station.