Feedback Response Frequency Allocation for Dense WLAN Stations
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In high-density wireless local area network environments, non-AP stations may not be able to participate in feedback response transmissions due to improper bandwidth triggers, and in future amendments, the support for higher density environments will require improved mechanisms to ensure all stations can participate in feedback responses.
Innovation Solution
A communication apparatus and method that generates and transmits signals with frequency domain information to indicate the appropriate frequency domain for feedback responses within the operating channel of peer communication apparatuses, allowing simultaneous feedback from non-AP stations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the bandwidth of the trigger-based feedback NDP is set to a fixed value, then the feedback transmission can be simplified, but some non-AP STAs may not be able to participate in the feedback response transmission
Solution Approach 1:
The patent applies dynamics by making the feedback NDP bandwidth adaptive rather than fixed. The access point determines the bandwidth of the trigger-based feedback NDP based on the operating channel bandwidth and the bandwidth of the feedback response transmission, allowing the system to dynamically adjust to different scenarios and ensure all non-AP STAs can participate.
2Quantity of substance
If the bandwidth of the trigger-based feedback NDP is increased to support more STAs, then the number of supported STAs increases, but the feedback transmission time and latency increase
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting the bandwidth parameter of the trigger-based feedback NDP based on the number of STAs and the operating channel conditions. This allows the system to optimize the balance between the number of supported STAs and the transmission time, reducing latency while supporting high density environments.
3Adaptability or versatility
If the feedback response transmission uses the same frequency domain as the operating channel, then all non-AP STAs can participate, but the frequency domain resource allocation becomes more complex
Solution Approach 1:
The patent applies segmentation by dividing the frequency domain into different resource units (RUs) within the operating channel. The access point allocates specific RUs for feedback response transmission based on the determined bandwidth, allowing multiple STAs to participate simultaneously while maintaining manageable resource allocation through structured frequency division.
Data Source
AI summary
The present disclosure provides a communication apparatus and a communication method for a feedback response transmission in an indicated frequency domain, the communication apparatus comprising: circuitry, which, in operation, generates a signal that solicits a feedback response; and a transmitter, which, in operation, transmits the generated signal to one or more peer communication apparatuses, wherein the generated signal comprises frequency domain information indicating a frequency domain used for transmitting the feedback response within an operating channel of the one or more peer communication apparatuses.