Base Station Paging Controller for 5G Idle Mode
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Solution Overview
Problem
The 5G communication system faces challenges in efficiently managing the idle mode due to the absence of a separate paging controller (PC) in flat network communication systems, leading to increased load on gateways and reduced BS coverage, necessitating a method to support idle mode operations without a centralized PC.
Innovation Solution
A method where base stations (BS) in the 5G mobile communication system negotiate and determine whether to operate as a PC for idle mode mobile stations (MS), detect packets destined for MS, and transmit notifications to other BSs within the paging zone, allowing for efficient idle mode management without a centralized PC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a centralized paging controller (PC) is used to manage idle mode MS, then idle mode management is efficient, but the gateway becomes overloaded and system complexity increases
Solution Approach 1:
The patent extracts the paging controller function from the centralized gateway and relocates it to individual base stations. Each base station independently manages idle mode mobile stations within its coverage area, eliminating the need for a centralized PC and reducing gateway load while maintaining management efficiency
Solution Approach 2:
The patent segments the centralized idle mode management function into distributed base station-level functions. Each base station handles paging and idle mode management for MS in its own coverage area, dividing the monolithic gateway responsibility into multiple independent units
2Speed
If super high frequency band (>30 GHz) is used to support high data rate, then bandwidth is increased, but path loss increases and BS coverage is reduced
Solution Approach 1:
The patent enables base stations to autonomously perform paging controller functions without relying on centralized gateway coordination. This self-service capability allows BS to efficiently manage idle mode MS within its coverage area, optimizing resource utilization and reducing inter-base-station signaling overhead
Solution Approach 2:
The patent implements dynamic idle mode management where base stations can independently adjust paging parameters and manage MS based on real-time conditions in their coverage areas, allowing adaptive optimization of both data rate and coverage efficiency
3Area of stationary object
If multiple small BSs are deployed to compensate for coverage reduction, then coverage is restored, but gateway load increases exponentially
Solution Approach 1:
The patent extracts the paging control function from the gateway and assigns it to individual base stations. This eliminates the exponential scaling of gateway load with the number of small BSs, as each BS independently manages its own idle mode MS without gateway mediation
Solution Approach 2:
The patent segments the gateway's paging control responsibilities into discrete base station functions. Each small BS handles its own paging and idle mode management, preventing the aggregation of load at the gateway and enabling linear rather than exponential scaling
Data Source
AI summary
A method of a base station (BS) in a mobile communication system to support an idle mode in a wireless communication system is provided. The method includes performing a negotiation procedure for idle mode entry of a mobile station (MS), with the MS, determining whether to operate as a paging controller for the idle mode MS, detecting a packet destined for the MS, and transmitting a message notifying existence of the packet destined for the MS, to at least one other BS in a paging zone of the BS.