PTA Module Arbitrates WiMAX WiFi Bluetooth Interference
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Solution Overview
Problem
The overlapping or adjacent operating frequency bands of different wireless communication services such as WiMAX, WiFi, and Bluetooth lead to degraded transmission performance, necessitating effective coordination among these services to manage operation conflicts and optimize usage.
Innovation Solution
A Packet Traffic Arbitration (PTA) module coordinates the operations of multiple wireless communication modules by evaluating requests for transmission or reception operations based on power levels and time periods, determining which requests to grant or reject to avoid interference, using a priority system and considering the specific characteristics of each service's frequency bands and packet types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple wireless communication modules operate simultaneously in overlapping frequency bands, then communication services can be provided concurrently, but transmission performance degrades due to interference
Solution Approach 1:
The PTA module serves as an intermediary arbitration mechanism that receives operation requests from multiple wireless communication modules, evaluates their power levels and time periods, and grants or rejects requests to prevent interference. This mediator coordinates between conflicting modules without requiring changes to the modules themselves, enabling concurrent operation while maintaining transmission performance through centralized control
Solution Approach 2:
The system dynamically changes operational parameters (power levels and time periods) of wireless communication modules based on arbitration results. By adjusting these parameters in real-time according to current interference conditions and service priorities, the system optimizes transmission performance while allowing multiple services to operate concurrently when conditions permit
2Ease of operation
If a PTA request is granted for a wireless communication operation, then the operation can proceed, but the granted request may need to be rejected if another higher priority operation is needed
Solution Approach 1:
The PTA module implements continuous feedback monitoring of ongoing operations and new requests. When a higher priority operation becomes necessary, the system provides feedback by rejecting previously granted requests and notifying the affected modules. This feedback mechanism ensures that transmission performance is maintained by allowing dynamic reassignment of operational grants based on changing conditions and priority requirements
3Adaptability or versatility
If wireless communication modules operate without coordination, then each module can function independently, but interference occurs in overlapping frequency bands
Solution Approach 1:
The PTA module acts as a coordinating intermediary that preserves the independence of individual wireless communication modules while preventing interference. Each module maintains its own operation requests and functionality, but the PTA module arbitrates between them by evaluating power levels and time periods, granting or rejecting requests to avoid frequency band conflicts. This approach maintains module versatility while ensuring reliable transmission performance through coordinated control
Data Source
AI summary
An apparatus (and related method) coordinates wireless communication operations for coexisted wireless communication modules. The apparatus includes a packet traffic arbitration (PTA) module coupled between a first wireless communication module and a second wireless communication module, granting the first request requesting for a first wireless communication operation with a first priority in a first time period from the first wireless communication module, receiving a second request requesting for a second wireless communication operation with a second priority from the second wireless communication module when the granted first wireless communication operation is not finished. In operation, the first wireless communication operation interferes with the second wireless communication operation, the PTA module granting the second request and informing the first wireless communication module to take back the granted first request when the second priority is higher than the first priority.