OFDMA Wireless Access Point Dynamic Resource Unit Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional wireless local area network (WLAN) systems using bring your own device (BYOD) methods face inefficiencies in allocating Resource Units (RUs) to devices, as they lack dynamic and user-based allocation, leading to suboptimal bandwidth distribution among devices from the same user, especially as the number of users increases.
Innovation Solution
Implementing a method that uses condition-based orthogonal frequency-division multiple access (OFDMA) functionality, where devices are authenticated and assigned roles by an authentication, authorization, and accounting (AAA) server, and the wireless access point (WAP) dynamically allocates RUs based on stored conditions and roles, ensuring fair and efficient bandwidth distribution among devices associated with the same identifier.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional static RU allocation methods are used in BYOD WLANs, then device compatibility and ease of operation are maintained, but bandwidth distribution efficiency and network performance deteriorate as the number of users increases
Solution Approach 1:
The patent implements dynamic RU allocation where the access point continuously monitors device roles, identifier associations, and network conditions to adjust RU assignments in real-time. This transforms the static allocation system into a dynamic one that adapts to changing network conditions and user requirements, thereby improving bandwidth distribution efficiency without requiring complex manual configuration
Solution Approach 2:
The system incorporates feedback mechanisms where the access point receives role information from the AAA server and monitors device connections, then uses this feedback to automatically adjust RU allocations. The system continuously evaluates network conditions and reallocates RUs based on current device associations and roles, creating a closed-loop control system that optimizes bandwidth distribution automatically
2Productivity
If all devices from the same user are allocated the same number of RUs traditionally, then ease of operation is maintained, but fairness and efficiency in bandwidth distribution worsen when devices have different roles or requirements
Solution Approach 1:
The patent applies local quality by allocating different RU quantities to different devices based on their specific roles and requirements rather than treating all devices uniformly. Devices with full access roles receive different allocations compared to those with limited access roles, and each device's allocation is optimized according to its local characteristics and network needs, thereby improving overall bandwidth utilization efficiency
Solution Approach 2:
The system changes the allocation parameter (number of RUs) based on device role parameters and identifier associations. By varying the RU allocation parameter according to device-specific conditions such as role type and user association, the system achieves efficient and fair bandwidth distribution while maintaining automatic operation through role-based policies
3Productivity
If dynamic role-based RU allocation is implemented, then bandwidth distribution efficiency and fairness improve, but system complexity and difficulty of detecting and measuring device conditions worsen
Solution Approach 1:
The patent introduces the AAA server as an intermediary that handles the complex tasks of device authentication, role assignment, and information management. The access point leverages the AAA server's capabilities to obtain device role information and identifier associations, thereby simplifying its own functionality while still achieving dynamic and efficient RU allocation based on comprehensive device conditions
Data Source
AI summary
Systems and methods are provided herein for providing user-based resource allocation using OFDMA functionality. This may be accomplished by a WAP receiving a request for access to a network from a first device, wherein the first device is configured to communicate with the WAP using OFDMA. The request for access comprises an identifier and role associated with the first device. The WAP then determine if a second device associated with the same identifier as the first device is being allocated one or more RUs for communicating with the network. If there is a second device associated with the identifier being allocated RUs for communicating with the network, the WAP determines a number of one or more RUs to provide to the first device based on the role associated with the first device and one or more conditions stored in a database.