Wireless Communication Node Frequency Band Duplexing
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Solution Overview
Problem
LoRa wireless networks face inefficiencies in intra-frequency and inter-frequency operations, leading to low network efficiency, limited capacity, and increased costs due to the need for multiple gateways and wider spectrum resources, with intra-frequency networks restricting duplex communication and inter-frequency networks failing to meet bandwidth needs.
Innovation Solution
A wireless communication method that distinguishes between intra-frequency and inter-frequency terminals by using identical frequency bands for uplink and downlink channels in one node and different frequency bands in another node, allowing for duplex communication and efficient data transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If an intra-frequency network is deployed, then simple communication is achieved, but network efficiency and capacity are reduced
Solution Approach 1:
The patent segments the network into intra-frequency and inter-frequency terminal types, and assigns different gateway configurations to each type. Intra-frequency terminals use gateways with identical uplink and downlink frequency bands, while inter-frequency terminals use gateways with different frequency bands. This segmentation allows each terminal type to use the most suitable communication mode, improving overall network efficiency without sacrificing the simplicity of intra-frequency communication.
Solution Approach 2:
The patent makes the gateway system universal by enabling it to support both intra-frequency and inter-frequency terminal types through configurable frequency band settings. The gateway can be configured with different uplink and downlink frequency band combinations to accommodate different terminal types, allowing a single gateway system to serve multiple communication needs and improve overall network efficiency.
2Productivity
If an inter-frequency network is deployed, then duplex communication is enabled, but bandwidth requirements increase and gateway costs double
Solution Approach 1:
The patent applies local quality by configuring different frequency band characteristics for different parts of the network. Specifically, intra-frequency terminals are served by gateways with matching frequency bands for both uplink and downlink, while inter-frequency terminals are served by gateways with different frequency bands. This localized differentiation allows duplex communication for inter-frequency terminals without requiring the entire network to use wide bandwidth resources.
Solution Approach 2:
The patent uses partial action by enabling inter-frequency communication only for terminals that require it, rather than making the entire network inter-frequency. This allows duplex communication capability to be applied selectively to inter-frequency terminals while maintaining simpler intra-frequency operation for other terminals, thereby avoiding the need to double gateway costs and widen spectrum resources across the entire network.
3Adaptability or versatility
If both intra-frequency and inter-frequency networks are deployed simultaneously, then all terminal types are supported, but spectrum resources and gateway数量 increase
Solution Approach 1:
The patent makes the gateway system universal by enabling it to support both intra-frequency and inter-frequency terminal types through configurable frequency band settings. The gateway can be configured with different uplink and downlink frequency band combinations to accommodate different terminal types, allowing a single gateway system to serve multiple communication needs and reducing the total number of gateways required.
Solution Approach 2:
The patent merges the functionality of separate intra-frequency and inter-frequency gateway systems into a single unified gateway system that can operate in both modes. By combining the configuration capabilities and using a single gateway infrastructure that supports both terminal types, the system reduces the total number of gateways needed and simplifies deployment while maintaining support for all terminal types.
Data Source
AI summary
The frequency band of an uplink channel of the first node is identical to the frequency band of a downlink channel of the second node. The frequency band of the uplink channel of the first node is different from the frequency band of a downlink channel of the first node. Uplink data from the terminal is received through the uplink channel of the first node; when the terminal is an intra-frequency terminal, downlink data is transmitted to the terminal through the downlink channel of the second node; and when the terminal is an inter-frequency terminal, downlink data is transmitted to the terminal through the downlink channel of the first node. The wireless communication method is compatible with intra-frequency terminals and inter-frequency terminals, and the inter-frequency terminal transmits uplink data through the first node and receive downlink data through the second node, thus implementing duplex communication and improving communication efficiency.