Wireless Frame Coordination for Co-Located Interference
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Solution Overview
Problem
Data transmission in wireless communication systems is often interfered with by co-located-device systems, leading to inefficiencies and reduced performance.
Innovation Solution
A method involving the transmission and reception of frames to indicate interference coordination operation information for links and sub-channels, allowing for adaptive adjustment of spatial streams, wake times, and resource allocation to minimize interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless communication devices operate without interference coordination, then device operation is simple and autonomous, but data transmission efficiency deteriorates due to interference from co-located-device systems
Solution Approach 1:
A frame structure is introduced as an intermediary carrier to transmit interference coordination information between devices. The frame includes fields for indicating unavailable time periods and affected frequency bands, enabling devices to coordinate interference without direct complex interaction, thus improving data transmission efficiency while maintaining operational simplicity
Solution Approach 2:
The patent implements feedback mechanisms where devices transmit interference coordination information frames to inform other devices about their unavailable time periods and affected frequency bands. This feedback allows receiving devices to adjust their operations accordingly, resolving the contradiction between maintaining simple autonomous operation and achieving coordinated interference management for improved transmission efficiency
2Reliability
If devices autonomously determine wake times and spatial stream distribution, then device operation is independent and simple, but interference coordination between devices deteriorates
Solution Approach 1:
Devices perform preliminary actions by transmitting interference coordination information frames before actual data transmission. These frames preemptively indicate unavailable time periods and frequency bands, allowing other devices to plan their operations in advance. This preliminary coordination improves reliability of interference management while maintaining ease of operation through standardized frame exchange
3Productivity
If no interference coordination information is transmitted, then communication protocol is simple and overhead is low, but data transmission efficiency deteriorates due to uncoordinated interference
Solution Approach 1:
The interference coordination information is segmented into specific fields within the frame structure, including fields for indicating unavailable time periods and affected frequency bands. This segmentation allows efficient encoding of coordination information, minimizing communication overhead while enabling comprehensive interference coordination to improve data transmission efficiency
Data Source
AI summary
A method for wireless communication includes: transmitting, by a first device, a first frame to a second device, where the first frame is used for indicating interference coordination operation information of one or more links and/or one or more sub-channels/operating frequency bands.