Multi-Identifier Polling for Zero-Power Terminal Channel Access
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Solution Overview
Problem
Conventional communication systems face challenges in efficiently allocating channel resources to a large number of zero-power terminals, leading to resource wastage and collisions, particularly in scenarios like logistics management and environmental monitoring.
Innovation Solution
A method where a first device sends information indicating multiple device identifiers, prompting associated second devices to request channel resources, thereby enabling centralized polling and efficient resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If conventional communication systems allocate channel resources to a large number of zero-power terminals, then the coverage and deployment scale are improved, but resource wastage and collisions increase
Solution Approach 1:
The patent segments the channel resource allocation process into two distinct phases: an indication phase where the first device sends information indicating N device identifiers, and a request phase where only devices whose identifiers are indicated can request channel resources. This segmentation allows selective resource allocation to specific devices rather than allocating resources to all devices simultaneously, thereby reducing resource wastage while supporting large numbers of terminals.
2Quantity of substance
If conventional communication systems allocate channel resources to a large number of zero-power terminals, then the coverage and deployment scale are improved, but collisions increase
Solution Approach 1:
The patent implements preliminary action by having the first device send indication information containing N device identifiers before devices attempt to access channel resources. This preliminary indication step allows devices to determine in advance whether they are selected to request resources, preventing multiple devices from simultaneously attempting to access resources and causing collisions. The indication phase precedes and prepares for the resource request phase, eliminating conflicts.
3Productivity
If the first device sends information indicating N device identifiers, then channel resource allocation efficiency is improved, but information transmission overhead increases
Solution Approach 1:
The patent changes the parameter of information representation by using device identifiers that can be compactly encoded. The indication information contains N device identifiers where N is an integer greater than or equal to 2, allowing the system to efficiently indicate multiple devices using optimized data structures. This parameter optimization balances the need for efficient resource allocation with the constraint of minimizing information overhead in the indication messages.
Data Source
AI summary
An information transmission method, a first device, a second device, a chip, a computer readable storage medium, a computer program product, a computer program, and a communication system are provided. The method includes: a first device sends first information. The first information is used for indicating N device identifiers. A second device receiving the first information sends request information for a channel resource when the N device identifiers include a device identifier of the second device, and N is an integer greater than or equal to 2.