Primary Channel Indication for Reliable NPCA Frame Response
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Solution Overview
Problem
In wireless communication networks, miscoordination between transmitters and receivers due to detection of overlapping basic service sets (OBSS) can lead to frame transmission collisions, degrading performance and efficiency.
Innovation Solution
Implementing a channel indication mechanism in frame transmissions to specify whether the transmission is via a main primary channel or an opportunistic primary channel, allowing receivers to respond appropriately based on the indicated channel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If wireless communication devices use non-primary channel access (NPCA) to improve spectrum utilization, then productivity increases, but miscoordination between transmitters and receivers occurs leading to frame collisions and reliability degradation
Solution Approach 1:
The patent implements a feedback mechanism by including a channel indication field in the frame transmission that informs the receiver which primary channel was used for transmission. This feedback allows the receiver to properly respond on the correct channel, eliminating miscoordination while maintaining NPCA's spectrum utilization benefits
Solution Approach 2:
The channel indication field acts as an intermediary information carrier between the transmitter and receiver. It mediates the potential mismatch between transmission and reception channels by explicitly indicating which primary channel was used, enabling proper coordination without requiring complex negotiation protocols
2Reliability
If frame transmission includes channel indication to improve coordination, then reliability increases, but device complexity increases due to additional signaling requirements
Solution Approach 1:
The patent changes the parameter of the frame structure by adding a channel indication field. This parameter change enables reliable communication on NPCA frames without fundamentally redesigning the communication protocol or requiring complex new mechanisms, thus limiting the increase in device complexity
Data Source
AI summary
Certain aspects of the present disclosure are directed towards a wireless communication device. The wireless communication device generally includes a processing system that includes one or more processors and one or more memories coupled with the one or more processors, the processing system configured to cause the wireless communication device to: obtain a first frame transmission via a first primary channel or a second primary channel, wherein the first frame transmission includes an indication of whether the first frame transmission is via the first primary channel or the second primary channel; and cause a second frame transmission in response to obtaining the first frame transmission, wherein the second frame transmission is via the first primary channel or the second primary channel based on the indication.