SR Resource Control for Interference-Aware BSS Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing radio communication technologies do not adequately address the interference reduction from Non-SR transmissions to BSSs performing Spatial Reuse (SR) transmissions, leading to degraded system performance.
Innovation Solution
A radio communication apparatus and method that determine transmission resources for Spatial Reuse (SR) signals based on radio quality information from another BSS, reducing interference by controlling transmission power and resources to minimize interference to BSSs performing SR transmissions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If Spatial Reuse (SR) transmission is performed to improve system performance in dense BSS environments, then transmission opportunities are increased, but interference is given to other BSSs performing SR transmission
Solution Approach 1:
The patent applies local quality by determining transmission resources for SR signals on a per-BSS basis. The control circuitry identifies specific BSSs that are suitable targets for SR transmission while excluding BSSs that are currently performing SR transmission, thereby applying different transmission qualities (allowing or prohibiting SR) to different local BSS contexts. This resolves the contradiction by enabling SR transmission to improve productivity in some directions while preventing interference in other directions.
Solution Approach 2:
The patent employs feedback mechanisms where the control circuitry receives information about which BSSs are performing SR transmission and uses this feedback to dynamically adjust transmission resource allocation. By continuously monitoring the SR transmission status of neighboring BSSs and adjusting SR transmission decisions accordingly, the system resolves the contradiction between maximizing transmission opportunities and minimizing interference through real-time adaptive control.
2Ease of operation
If Non-SR transmission is performed without considering interference to BSSs performing SR transmission, then transmission simplicity is maintained, but reception success rates degrade due to interference
Solution Approach 1:
The patent applies preliminary action by having the control circuitry proactively determine and reserve appropriate transmission resources for SR signals before transmission occurs. By pre-identifying which BSSs are performing SR transmission and excluding them from SR transmission targets, the system ensures that interference is avoided before it occurs. This maintains transmission simplicity while improving reception success rates through advance planning.
Solution Approach 2:
The patent changes the transmission resource parameters (time, frequency, spatial resources) for SR signals based on the SR transmission status of neighboring BSSs. By dynamically adjusting these parameters to avoid overlapping with BSSs that are performing SR transmission, the system resolves the contradiction between transmission simplicity and reception reliability through intelligent parameter selection rather than complex transmission control.
Data Source
AI summary
Provided is a radio communication device capable of reducing interference, caused by non-SR transmission, with a basic service set (BSS) performing spatial reuse (SR) transmission. An SR transmission resource control unit (107) of the radio communication device (SR initiator) (100) determines transmission resources for an SR signal to be transmitted by means of SR to a second BSS other than a first BSS to which the radio communication device (100) belongs on the basis of radio quality information transmitted from other radio communication devices (SR responders) in the first BSS. A radio transmission/reception unit (101) transmits the SR signal by using the determined transmission resources.