MIMO Paging ID Segmentation for Signaling Load Reduction
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Solution Overview
Problem
In MIMO communication systems, especially in 5G environments, the conventional paging method leads to a rapid increase in signaling load during paging due to the transmission of paging signals across multiple antenna beams, which results in performance deterioration and inefficiency.
Innovation Solution
A new paging method that involves identifying a terminal's paging ID and transmitting it through a beam sweeping operation across multiple antenna beams, allowing the Base Station to recognize the specific antenna beam used by the terminal for downlink reception and perform accurate paging without unnecessary signaling load, using a smaller paging ID and leveraging cell and beam information returned by the terminal.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the BS transmits one paging signal aiming for one idle terminal for each of a plurality of (N) antenna beams in a MIMO communication system, then the terminal can receive the paging signal through at least one antenna beam, but the signaling load of the radio section rapidly increases
Solution Approach 1:
The patent segments the paging process into two distinct phases: (1) a paging indication phase where a compact paging ID is transmitted through beam sweeping to notify terminals of incoming paging, and (2) a paging data transmission phase where the actual paging signal is sent only to terminals that responded to the indication. This segmentation eliminates the need to transmit full paging signals through all N antenna beams, thereby reducing signaling load while maintaining reliable paging delivery.
Solution Approach 2:
The patent introduces a paging ID as an intermediary element that mediates between the base station and idle terminals. Instead of directly transmitting full paging signals through multiple antenna beams, the BS first transmits the paging ID as a compact indicator. Terminals that detect their paging ID respond with their identity, allowing the BS to then transmit the actual paging signal only to the intended terminal through the specific antenna beam that achieved successful communication, thus reducing overall signaling load.
2Area of stationary object
If the BS transmits paging signals through multiple antenna beams in a MIMO system with RAN-based notification area management, then coverage is improved, but the signaling load increases very seriously
Solution Approach 1:
The patent applies segmentation by dividing the paging procedure into an indication stage and a data transmission stage. During the indication stage, a compact paging ID is transmitted through beam sweeping across multiple directions to ensure wide coverage. Only terminals that successfully receive and recognize their paging ID respond, triggering the actual paging signal transmission. This segmentation allows coverage to be maintained through multi-beam indication while avoiding the exponential increase in signaling load that would result from transmitting full paging signals through all beams.
Solution Approach 2:
The patent implements partial action by transmitting only the essential paging indication (paging ID) through multiple antenna beams rather than transmitting the complete paging signal through all beams. The full paging signal is transmitted selectively only to terminals that have confirmed receipt of the indication. This partial transmission approach maintains adequate coverage through the beam sweeping indication phase while significantly reducing the total signaling load compared to transmitting complete paging signals through all N antenna beams across M cells.
3Adaptability or versatility
If a conventional paging method is applied in a MIMO communication system, then terminals can be paged using existing identification information, but the data transmission size and processing complexity increase
Solution Approach 1:
The patent segments identification into two levels: a compact paging ID level for initial notification and a full terminal identification level for subsequent processing. The paging ID serves as a segmented, simplified representation that triggers terminal response without requiring immediate processing of full terminal identification data. This segmentation reduces the data transmission size during the critical paging indication phase while maintaining compatibility with existing terminal identification systems in the subsequent paging data transmission phase.
Solution Approach 2:
The patent extracts the essential notification function from the complete paging signal by isolating and transmitting only the paging ID as a separate, compact element. This extracted paging ID contains sufficient information to trigger terminal response and identification, but excludes the larger terminal identification data that would increase processing complexity. The full terminal identification is then exchanged only after the terminal has responded, thereby reducing initial processing complexity while maintaining adaptability to existing identification systems.
Data Source
AI summary
Disclosed is a technology for improving paging efficiency in a communication system by implementing a new paging method (scheme) of minimizing signaling load of a radio section and accurately and rapidly performing paging without performance deterioration when paging is performed in a MIMO communication system.