Spatial Reuse CTS Mechanism for Dense Wireless Networks
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Solution Overview
Problem
Current wireless communication systems face challenges in managing dense deployments of devices, leading to interference and inefficient use of communication mediums, as existing technologies do not adequately support simultaneous transmissions without causing interference.
Innovation Solution
Implementing spatial reuse mechanisms that allow wireless communication devices to determine permissible communications by processing parameters associated with other devices' transmissions, enabling concurrent transmissions based on favorable comparisons of parameters such as signal strength and interference levels.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional wireless communication protocols are used in dense deployments, then device coverage is maintained, but interference between simultaneous transmissions increases and communication efficiency decreases
Solution Approach 1:
The patent changes the parameter thresholds for transmission permission by comparing signal strength and interference parameters against dynamically determined thresholds. This allows the system to adapt to dense deployment conditions by permitting transmissions when parameters indicate acceptable interference levels, thereby improving communication efficiency while managing interference between simultaneous transmissions.
2Productivity
If concurrent transmissions are allowed to increase network capacity, then communication throughput improves, but interference and collision probability increase
Solution Approach 1:
The patent implements a feedback mechanism where wireless devices monitor signal strength parameters and interference conditions from ongoing transmissions. Based on this feedback, devices determine whether to proceed with concurrent transmissions by comparing their transmission parameters against the monitored conditions. This feedback loop enables the network to maintain higher capacity through concurrent transmissions while preserving reliability by preventing transmissions that would cause excessive interference or collisions.
3Productivity
If spatial reuse mechanisms are implemented to allow concurrent transmissions, then network throughput increases, but system complexity increases
Solution Approach 1:
The patent applies partial action by implementing spatial reuse selectively rather than universally. Devices perform simplified parameter comparisons and threshold checks only when conditions suggest potential for beneficial concurrent transmissions. This approach increases network throughput through spatial reuse while limiting system complexity by avoiding full-blown coordination protocols in all transmission scenarios.
Data Source
AI summary
A wireless communication device (alternatively, device) includes a processing circuitry configured to support communications with other wireless communication device(s) and to generate and process signals for such communications. In some examples, the device includes a communication interface and a processing circuitry, among other possible circuitries, components, elements, etc. to support communications with other wireless communication device(s) and to generate and process signals for such communications. A device receives a request to send (RTS) from another device and replies with a clear to send (CTS) when the RTS includes a non-zero-valued network allocation vector (NAV) if one or more conditions make such a response permissible. The device processes other parameter(s) associated with other communications between other devices to determine if a CTS response is permissible even during the other communications between the other devices. If comparison of the other parameter(s) is/are favorably to certain condition(s), the device transmits the CTS.