A-IoT Resource Indication for LTE Coexistence and Conflict Avoidance
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Solution Overview
Problem
When an ambient internet of things (A-IoT) network and a long term evolution (LTE) network are jointly deployed, the resource allocation for the A-IoT network is not clear, leading to communication performance issues.
Innovation Solution
A resource indication method and apparatus that allows a terminal device to determine available or unavailable resources in the A-IoT network by receiving first information, which indicates the position relationship and antenna port quantities of the LTE network, enabling the A-IoT network to avoid resource conflicts and improve communication performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the A-IoT network and LTE network are jointly deployed with shared time-frequency resources, then resource utilization efficiency is improved, but resource conflicts and communication performance degradation occur
Solution Approach 1:
The patent segments the time-frequency resources by introducing the concept of antenna ports and dividing resources into different resource sets (first resource set for A-IoT, second resource set for LTE CRS). This segmentation allows each network to operate in dedicated resource portions, eliminating conflicts while maintaining overall resource utilization efficiency.
Solution Approach 2:
The patent applies local quality by assigning different resource characteristics to different spatial locations (antenna ports). The first resource set is specifically allocated for A-IoT networks while the second resource set is reserved for LTE CRS, allowing each network to have optimized local resource quality without interfering with the other.
2Device complexity
If the A-IoT network uses the same time-frequency resources as the LTE network, then device complexity is reduced, but resource allocation clarity and communication reliability deteriorate
Solution Approach 1:
The patent implements preliminary action by pre-configuring and indicating the first resource set to the terminal device through first information before A-IoT data transmission begins. This advance notification allows the terminal to clearly distinguish A-IoT resources from LTE resources without increasing device complexity, as the resource allocation is determined in advance rather than requiring complex real-time differentiation.
Data Source
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AI summary
This application provides a resource indication method and an apparatus, and relates to the field of wireless communication technologies. In this application, a first apparatus can learn of a resource of a first network. The method includes: A first apparatus receives first information, and determines an available resource or an unavailable resource of a first network based on the first information. The first apparatus is served by the first network. The first network may be an ambient internet of things A-IoT. The first network and a long term evolution LTE network may be jointly deployed, and/or the first network and a narrowband internet of things NB-IoT may be jointly deployed. The first apparatus may be a terminal device.