Non-Connected Location Packet Transmission for Low-Power IoT UEs
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The integration of sensing and communication (ISAC) in future wireless communication systems, particularly in IoT/mMTC scenarios, leads to increased power consumption in User Equipment (UE) due to the transmission of location information, which is not efficiently managed by existing uplink data transmission schemes like connected state requirements and semi-persistent scheduling, resulting in high power consumption and reduced spectral efficiency.
Innovation Solution
A method where location information is transmitted in a non-connected state using autonomous pilot selection and time-frequency resources indicated by a second communication node, allowing terminals to send data packets including location information without establishing a connection, thereby reducing power consumption and resource collisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the UE sends location information in connected state using existing uplink data transmission schemes, then the location information can be transmitted reliably, but the power consumption of the UE will increase significantly
Solution Approach 1:
The patent introduces dynamic state transitions for uplink transmission, allowing the UE to switch between connected state (for reliable transmission) and non-connected state (for power saving). The network configures multiple uplink data transmission modes including grant-based and grant-free modes, enabling dynamic adaptation between reliability and power consumption based on current transmission needs
Solution Approach 2:
The patent segments the uplink transmission process into distinct phases: connected state transmission for initial/reliable data, and non-connected state transmission for periodic/location updates. This segmentation allows the system to use appropriate transmission modes for different phases, reducing overall power consumption while maintaining reliability when needed
2Reliability
If the UE establishes a connection to transmit location information, then the transmission reliability is improved, but the signaling overheads and resource allocation complexity increase
Solution Approach 1:
The network performs preliminary configuration of uplink resources and transmission parameters before the UE needs to transmit data. The network configures grant-free uplink resources, transmission power, and other parameters in advance, so when the UE needs to send location information, it can directly use the pre-configured resources without extensive signaling exchanges, reducing both overhead and complexity
Solution Approach 2:
The patent enables grant-free uplink transmission where the UE can autonomously select and use pre-configured uplink resources without requesting grants from the network. This self-service mechanism eliminates the need for dynamic scheduling signaling, reducing signaling overhead and resource allocation complexity while maintaining transmission reliability
3Duration of action of moving object
If semi-persistent scheduling is used for location information transmission, then the periodic transmission is achieved, but the spectral efficiency decreases due to resource allocation overhead
Solution Approach 1:
The patent implements periodic uplink transmission for location information using pre-configured grant-free resources. The UE transmits location data at predetermined intervals without requiring continuous scheduling signaling. This periodic action maintains the necessary transmission duration while improving spectral efficiency by eliminating redundant scheduling overhead between periodic transmissions
Data Source
AI summary
Provided are an information transmission method, a communication node, and a storage medium. The method includes the following: acquiring location information of a first communication node is acquired; and in a non-connected state, transmitting a data packet including the location information to a second communication node.