Wireless Device Channel Resource Allocation Without Coordinator
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In wireless personal area networks (WPANs), channel resource allocation becomes inefficient when a large number of devices compete for limited resources, leading to insufficient allocation and interference, particularly when devices with high data capacity requirements, such as video transmission, occupy channels, preventing other devices from transmitting data effectively.
Innovation Solution
A method where devices can allocate and manage channel resources without relying on the coordinator, by receiving and transmitting channel resource allocation and change requests within the High-Rate Physical layer (HRP) and Medium Access Control (MAC) headers, allowing for efficient allocation and adjustment of channel time blocks (CTBs) between devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If channel resources are allocated by coordinator to all devices, then resource allocation coverage is improved, but device complexity and coordination overhead increase
Solution Approach 1:
The patent extracts the channel resource allocation function from the coordinator and implements it directly at the device level. Each device independently manages its own channel resources and performs allocations to other devices without coordinator intervention, thereby reducing coordination overhead while maintaining comprehensive resource allocation coverage.
Solution Approach 2:
Devices autonomously perform channel resource allocation to themselves and to other devices in the network. The self-service mechanism allows devices to independently request, evaluate, and grant channel resources based on local conditions, eliminating the need for centralized coordinator management and reducing system complexity.
2Device complexity
If devices allocate channel resources autonomously, then coordination overhead is reduced, but resource allocation efficiency may deteriorate
Solution Approach 1:
The patent implements a feedback mechanism where devices transmit channel resource request information to potential allocators, and allocators respond with allocation decisions. This closed-loop feedback system enables autonomous devices to efficiently coordinate resource distribution based on real-time network conditions and device needs, maintaining high allocation efficiency without centralized control.
3Power
If high data capacity devices occupy channels, then their data transmission is improved, but other devices' transmission capability deteriorates
Solution Approach 1:
The patent implements dynamic channel resource allocation where the amount of channel resources allocated to each device is not fixed but adjusts based on real-time requests and network conditions. High data capacity devices can obtain more resources when needed, while other devices can simultaneously allocate resources to each other, enabling the system to dynamically adapt to varying transmission requirements of different devices.
Data Source
AI summary
A method of allocating channel resources from a first device to a second device in a wireless network comprises receiving channel resource allocation information from a coordinator of the wireless network to allocate the channel resources; transmitting data to the second device through the allocated channel resources; receiving channel resource request information from the second device to request the first device to allocate a part of the allocated channel resources; and deciding whether to allocate the part of the channel resources allocated from the coordinator, to the second device in accordance with the channel resource request information.