Wireless Transmissions Using Spatial Filters for Interference Avoidance
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Solution Overview
Problem
Interference occurs in wireless communications networks, leading to missed and/or partial communications.
Innovation Solution
Implementing methods and apparatuses that utilize spatial filters and control messages to determine and avoid interference, allowing transmissions to be sent without causing interference to other wireless nodes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a wireless node transmits a signal using a spatial filter, then the transmission can be directed toward a specific target, but the spatial filter may cause interference to other wireless nodes
Solution Approach 1:
The wireless node determines whether a spatial filter would cause interference to a third wireless node before actually transmitting the signal. This preliminary interference assessment allows the node to select an appropriate spatial filter in advance, avoiding interference before it occurs.
Solution Approach 2:
The system uses control messages from third wireless nodes to provide feedback about potential interference. The first wireless node receives control messages indicating whether a proposed spatial filter would cause harmful interference, and adjusts its transmission accordingly based on this feedback.
2Productivity
If multiple wireless nodes transmit simultaneously, then network capacity increases, but interference between nodes increases
Solution Approach 1:
Wireless nodes exchange control messages that provide feedback about interference conditions. This enables nodes to make informed decisions about whether to transmit simultaneously or wait, optimizing network capacity while controlling interference through distributed feedback mechanisms.
Solution Approach 2:
Each wireless node autonomously determines whether its proposed transmission would cause interference to others by assessing control messages and spatial filter characteristics. This self-service interference assessment allows nodes to independently manage their transmissions without centralized coordination, increasing overall network capacity.
Data Source
AI summary
Apparatuses, methods, and systems are disclosed for transmissions to not cause interference. One method includes receiving a first configuration including information of a first reference signal (“RS”). The method includes transmitting the first RS while applying a first spatial filter. The method includes determining whether the first spatial filter is to be used for transmitting a signal to a second wireless node. The method includes receiving a first control message from a third wireless node. The method includes determining, based on the first control message, whether the first spatial filter causes an interference on the third wireless node. The method includes, based on determining that the first spatial filter does not cause the interference on the third wireless node, transmitting the signal to the second wireless node.