Passive IoT Uplink Resource Assignment by Position Information
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Solution Overview
Problem
In passive Internet of Things (IoT) communication technologies, there is a challenge in managing conflicts between uplink information from multiple terminal devices, particularly in determining how network devices notify terminal devices to transmit subsequent information and how terminal devices determine resources for transmission.
Innovation Solution
A method where a first communication node receives multiple pieces of information from second communication nodes and sends corresponding information in a single transmission unit, allowing second communication nodes to determine their transmission resources based on the position of their information within the unit, using time-domain, frequency-domain, or spreading sequences to avoid conflicts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple terminal devices send uplink information simultaneously using the same transmission resources, then the network device can receive more information, but information conflicts occur between terminal devices
Solution Approach 1:
The patent segments the transmission resources by introducing position information that divides the transmission unit into multiple slots. Each terminal device is assigned to a specific slot based on its position information, thereby segmenting the previously conflicting resource into multiple non-conflicting sub-resources. This allows multiple devices to transmit simultaneously without interference.
Solution Approach 2:
The patent applies local quality by making each slot have distinct characteristics through position information. Each terminal device receives customized position information that determines its specific transmission slot, creating locally differentiated transmission qualities. This ensures that while the overall system maintains high capacity, each local transmission path is conflict-free and reliable.
2Reliability
If the network device uses time-division multiplexing or code-division multiplexing to manage terminal access, then information conflicts are reduced, but the complexity of resource management increases
Solution Approach 1:
The patent enables terminal devices to self-assign transmission resources through position information. Instead of the network device complexly managing and allocating resources to each device, the position information embedded in the transmission unit allows terminal devices to autonomously determine their transmission slots. This self-service mechanism dramatically reduces the network device's management complexity while maintaining reliable conflict-free transmission.
3Ease of operation
If the network device notifies terminal devices to send uplink information using traditional methods, then the notification can be sent, but the method of how terminal devices determine transmission resources is unclear
Solution Approach 1:
The patent applies preliminary action by embedding position information in the transmission unit before terminal devices need to determine their transmission resources. This position information is prepared in advance and contains all necessary guidance for terminal devices to autonomously determine their transmission slots. By providing this information preliminarily, the patent eliminates the ambiguity of resource determination and ensures terminal devices can easily and accurately identify their transmission resources without losing any allocation information.
Data Source
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AI summary
Embodiments of the present application provide an information transmission method, a communication node, and a storage medium. A first communication node receives J pieces of first information sent by J second communication nodes, and then sends J pieces of second information in one transmission unit, wherein the J pieces of second information and the J pieces of first information are in one-to-one correspondence. A second communication node can receive J pieces of first information of a first communication node, determine a transmission resource of the present node according to second information, which corresponds to the present node, among the J pieces of first information, and then send third information by using the transmission resource.