Proxy Sensing Channel Access Shared Spectrum
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Solution Overview
Problem
In wireless communication networks, especially in shared spectrum deployments, the existing medium-sensing procedures for channel access lead to communication inefficiencies and increased latency due to the need for each node to contend for shared resources, particularly in scenarios with multiple network operating entities.
Innovation Solution
Implementing a proxy sensing mode where a subset of nodes, or proxy devices, perform channel sensing on behalf of the host network nodes, allowing the host nodes to operate without initial channel sensing, thereby reducing signaling overhead and latency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If each network node performs channel sensing on shared spectrum before communication, then channel access reliability is improved, but communication latency increases and efficiency deteriorates
Solution Approach 1:
The patent introduces a proxy device as an intermediary that performs channel sensing on behalf of host network nodes. The proxy device monitors the shared spectrum and reports channel conditions to the host nodes, eliminating the need for each host node to perform its own sensing. This mediator approach maintains reliable channel access while significantly reducing latency and signaling overhead.
Solution Approach 2:
The patent segments the channel sensing function from the host network nodes and assigns it to dedicated proxy devices. This separation allows host nodes to focus on communication while proxy devices specialize in spectrum monitoring, improving overall system efficiency and reducing the time burden on communication nodes.
2Measurement precision
If each network node performs channel sensing on shared spectrum, then interference detection accuracy is improved, but signaling overhead increases and communication efficiency decreases
Solution Approach 1:
The proxy device acts as an intermediary that consolidates interference detection for multiple host nodes. Instead of each node reporting sensing results independently, the single proxy device performs centralized monitoring and reporting, dramatically reducing signaling overhead while maintaining detection accuracy through its dedicated monitoring role.
Solution Approach 2:
The proxy device provides universal channel sensing service to multiple host network nodes simultaneously. This multi-functional approach allows a single device to serve the interference detection needs of entire networks or network slices, reducing redundant sensing operations and minimizing signaling overhead across the system.
3Productivity
If proxy devices perform channel sensing on behalf of host nodes, then communication efficiency is improved and latency is reduced, but the system requires additional infrastructure complexity
Solution Approach 1:
The system implements self-service by allowing proxy devices to autonomously perform channel sensing and generate reports without requiring complex centralized coordination for each sensing operation. The proxy devices independently monitor their local environments and provide feedback, reducing the control plane complexity while maintaining high communication efficiency.
Data Source
AI summary
A proxy sensing-based channel access procedure is discussed for shared spectrum networks. Within a given network, a distribution of proxy nodes may be deployed around a network operating area. A control node, which controls the proxy sensing mode for the network, may configure the active network nodes to conduct communications via the shared communication spectrum without first performing any type of channel sensing on the shared communication spectrum. The control node may then also configured the proxy nodes to perform channel sensing on the shared spectrum for the entire network. Using the reported channel sense results from the proxy nodes, the control node may determine whether detected interference is occasional or persistent, and whether to take some action to modify the communications or operations of the network.