Multi-Frequency Allocation IP Address Acquisition in Wireless Terminals
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Solution Overview
Problem
Current OFDM broadband wireless communication systems can only support terminals using a single bandwidth, requiring a change in Frequency Allocation (FA) to accommodate new terminals with wider bandwidths, which necessitates updating all existing terminals, making it difficult to support both old and new terminals simultaneously.
Innovation Solution
The system employs multiple Frequency Allocations (FAs) with independent Media Access Control (MAC) processors and communicators to manage and transmit MAC packets across different FAs, allowing terminals to operate with different bandwidths and obtain a single IP address, using a frequency overlay technique to maintain compatibility with existing systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the Frequency Allocation (FA) is changed to support new terminals with wider bandwidth, then the bandwidth support capability is improved, but all existing terminals must be updated simultaneously, increasing system complexity and deployment difficulty
Solution Approach 1:
The system divides the frequency spectrum into multiple Frequency Allocations (FAs), where each FA operates independently with its own MAC processor. This segmentation allows different FAs to support different bandwidth requirements simultaneously, enabling both narrowband and wideband terminals to coexist without requiring system-wide updates.
Solution Approach 2:
The base station is designed to handle multiple FAs with different bandwidth characteristics through a universal architecture. Each FA can be configured independently to serve different terminal types, making the system universally compatible with both legacy narrowband terminals and new wideband terminals without requiring separate systems.
2Device complexity
If a single Frequency Allocation is used, then the system structure is simple, but only terminals using a single bandwidth can be supported, reducing system versatility
Solution Approach 1:
The system dynamically allocates multiple FAs with different bandwidth configurations based on terminal requirements. Each FA can be independently activated or deactivated, and the MAC processor dynamically manages packet distribution across FAs, allowing the system to adapt to different terminal types without increasing structural complexity.
Solution Approach 2:
The MAC processor acts as an intermediary between the IP layer and multiple FAs. It receives IP packets and intelligently distributes them to appropriate FAs based on terminal bandwidth requirements, simplifying the overall system structure by providing a single point of control rather than requiring complex terminal-specific configurations.
3Adaptability or versatility
If multiple Frequency Allocations are used with independent MAC processors, then terminals with different bandwidths can be supported simultaneously, but the number of MAC processors and communicators increases
Solution Approach 1:
Multiple FAs with different bandwidth capabilities are merged into a unified communication system. The base station integrates multiple MAC processors and communicators into a coordinated architecture where they work together as a single entity, managing multiple terminals with different bandwidth requirements through a unified control mechanism.
Data Source
AI summary
An Internet Protocol (IP) address acquisition in a broadband wireless communication system is disclosed. A terminal includes a driver for loading one of a plurality Media Access Control (MAC) addresses for a multi-Frequency Allocation (FA) connection when the terminal is initialized; an interface for registering the loaded MAC address to use in an upper layer of a MAC layer; and a manager for acquiring an IP address using the registered MAC address when a network entry for at least one FA is complete.