Multi-Standard Area Identity Broadcast for Wireless Reliability
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Solution Overview
Problem
Wireless communication systems face reliability issues when terminals move between networks of different standards, such as 4G and 5G, due to inadequate tracking area update mechanisms, leading to ping-pong phenomena and reduced communication reliability.
Innovation Solution
Implementing a method where base stations broadcast both 4G and 5G area identities, allowing terminals to perform area updates based on the appropriate standard, reducing the need for frequent updates and improving connectivity by using different area identity formats and indication information elements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal moves between networks of different standards (4G and 5G), then the terminal can access multiple communication standards, but communication reliability deteriorates due to ping-pong phenomena and inadequate tracking area update mechanisms
Solution Approach 1:
The patent segments the area identity management by introducing separate area identities for different communication standards (4G and 5G). When a base station supports multiple standards, it broadcasts distinct area identities for each standard, allowing the terminal to perform tracking area updates independently for each standard based on its current active standard, thereby preventing ping-pong phenomena and improving communication reliability while maintaining multi-standard access capability
2Reliability
If a terminal performs frequent area updates when moving between 4G and 5G networks, then location management is maintained, but network performance deteriorates due to excessive signaling and ping-pong effects
Solution Approach 1:
The patent divides the tracking area update mechanism into separate instances for different communication standards. Each standard has its own area identity and update procedure, so the terminal only performs updates for the standard it is currently using. This segmentation eliminates unnecessary cross-standard update signaling, reducing ping-pong effects and improving network performance while maintaining accurate location management
Solution Approach 2:
The patent extracts the area update mechanism from a unified approach into standard-specific independent mechanisms. By separating the tracking area update procedures for 4G and 5G, the system eliminates redundant update operations that occur when a terminal switches between standards, thereby improving network performance without compromising location management accuracy
Data Source
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AI summary
Embodiments of this application provide a communication method and a communications device, which are applied to a communications system supporting a first communications standard and a second communications standard. The communications system includes a base station supporting connectivity to a core network of the first communications standard and a core network of the second communications standard. Information broadcast by the base station includes a first area identity. The method includes: receiving, by a terminal, information broadcast by the base station; when the terminal enters a cell served by the base station from a cell of the first communications standard, and the information broadcast by the base station includes a second area identity, initiating, by the terminal, an area update to the core network of the second communications standard; or when the terminal enters a cell served by the base station from a cell of the second communications standard, the information broadcast by the base station includes a second area identity that does not belong to a current area list of the terminal, initiating, by the terminal, an area update to the core network of the second communications standard. The base station broadcasts the area identities of the two communications standards, so that communication reliability can be improved for the terminal when the terminal moves between cells.