Wireless Station Protocol Blocks for Direct Communication Reliability
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Solution Overview
Problem
Current wireless access systems lack definitions for supporting high reliability features such as multi-mode operation, single point of failure immunity, and direct communication between mobile stations, which are essential for maintaining communication in case of radio link failures and multicast communication.
Innovation Solution
The implementation of a wireless access system architecture that includes function blocks within mobile, base, and relay stations to manage radio resources, perform medium access control, and facilitate direct communication, multi-mode operation, and multicast management, ensuring high reliability through path management and security features.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a wireless access system implements multi-mode operation and direct communication between mobile stations to improve reliability, then the system complexity increases
Solution Approach 1:
The patent segments the wireless access system into distinct functional blocks: a first function block handling radio resource control and management on the control plane, and a second function block handling medium access control on both control and data planes. This segmentation allows complex multi-mode operation and direct communication features to be implemented through modular, manageable components, reducing overall system complexity while maintaining high reliability
Solution Approach 2:
The patent implements multi-mode operation where mobile stations can perform multiple roles including direct communication, relay station functionality, and base station functionality. The first function block is designed to be universal, capable of handling various communication modes and roles within a single integrated architecture, thereby improving reliability without proportionally increasing system complexity
2Reliability
If direct communication between mobile stations is implemented to maintain communication during radio link failure, then path management complexity increases
Solution Approach 1:
The patent divides path management into distinct functional blocks: a path management block within the first function block for control plane path management, and a direct communication management block for data plane path management. This segmentation simplifies the overall path management complexity by distributing responsibilities across specialized components rather than requiring a single complex path management system
Solution Approach 2:
The patent introduces a direct communication management block as an intermediary component that specifically handles direct communication paths between mobile stations. This intermediary block manages the complexity of path establishment, maintenance, and recovery for direct communications, isolating this complexity from the overall radio resource control system while ensuring communication continuity during radio link failures
3Adaptability or versatility
If multicast communication and multi-mode operation are supported to improve system versatility, then the number of function blocks and system complexity increases
Solution Approach 1:
The patent designs the first function block with universal capabilities to handle radio resource control, management, and multiple communication modes including direct communication, relay station operation, and base station operation. The second function block provides universal medium access control for both control and data planes. This universal design approach enables versatile multi-mode operation without requiring separate specialized function blocks for each mode, thereby limiting the increase in system complexity
Solution Approach 2:
The patent merges multiple communication functions into integrated function blocks. The first function block combines radio resource control, path management, and multi-mode management capabilities. The second function block combines medium access control for both control and data planes. This merging of functions into unified blocks reduces the total number of separate components compared to having dedicated blocks for each function, thereby supporting versatile communication modes while limiting complexity growth
Data Source
AI summary
Protocol structure of a mobile station, base station or relay station in a wireless access system is provided. The protocol structure includes a first function block configured to perform radio resource control and management as a MAC layer and to reside on a control plane, and a second function block configured to perform medium access control as the MAC layer and to reside on the control plane and a data plane. The first function block includes various function blocks for supporting high reliability.