Decentralized Wireless Resource Switching via Broadcast Signals
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional cellular wireless communications networks face challenges in managing resource allocation and switching in decentralized peer-to-peer networks, where centralized control is absent, and devices need to adapt to changing conditions such as interference and jamming without a centralized controller.
Innovation Solution
A method where individual communications devices in a decentralized wireless network self-allocate resources and switch between them by broadcasting resource change signals, using peer discovery communications resources with pseudo-randomly placed intentional NULLs to facilitate power measurements and interference assessments, allowing seamless tracking of information streams across resource changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If devices in a decentralized network autonomously manage resource allocation and switching, then adaptability to changing conditions is improved, but device complexity increases
Solution Approach 1:
Each communications device autonomously performs resource allocation, monitoring, and switching decisions without centralized control. The device independently assesses channel conditions, detects interference and collisions, and switches resources based on predefined criteria, enabling self-service operation in decentralized networks
Solution Approach 2:
Devices continuously monitor channel conditions, interference levels, and collision detection outcomes, using this feedback to dynamically adjust resource selection and switching decisions. The feedback mechanism enables adaptive behavior while maintaining manageable complexity through rule-based responses to observed conditions
2Loss of information
If devices monitor all available communication resources, then situation awareness is improved, but power consumption and computational complexity increase
Solution Approach 1:
Devices monitor a limited subset of communication resources rather than all available resources. By focusing monitoring efforts on selected resources based on allocation patterns and interference observations, devices achieve sufficient situational awareness while significantly reducing power consumption and computational requirements
3Speed
If a device switches communication resources without notifying peers, then switching speed is improved, but loss of information increases due to peer tracking disruption
Solution Approach 1:
The device transmits a resource change signal before or during the resource switching operation to notify peer devices of the upcoming or ongoing switch. This preliminary notification allows peers to prepare for tracking the device on new resources, maintaining continuity of communication while enabling relatively fast switching
Solution Approach 2:
The resource change signal acts as an intermediary message that bridges the gap between resource switching actions and peer tracking updates. This signal carries essential information about the resource transition, enabling peers to maintain accurate tracking without requiring continuous monitoring of all resources
Data Source
Figure 1
Figure 2~2A
Figure 2B
AI summary
Methods and apparatus for controlling switching between resources and/or communicating resource change information in a wireless communications system are described. Various methods and apparatus are well suited for use in a decentralized wireless communications network, such as a decentralized peer to peer wireless network, where an individual communications device self allocates resources and makes resource switching decisions. A first communications device may decide that there is a need to switch from the first communications resource corresponding to a first identifier to a second communications resource corresponding to a second identifier, e.g., because of interference. The first communications device generates and transmits a broadcast change signal indicating a change from the first communications resource associated with the first identifier to a second communications resource associated with the second identifier. In some embodiments, the resource change signal is transmitted on at least one of the first and second communications resources.