Height Determination via Receive Power in Wireless Networks
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Solution Overview
Problem
Current wireless network technologies lack effective methods for determining the height information of user equipment (UE) due to low positioning precision in two-dimensional plane positioning, limiting their application scope and inability to provide refined, three-dimensional signal coverage.
Innovation Solution
A method where user equipment receives a height requirement message, listens to broadcast messages from access nodes, and sends response messages containing node identifiers and receive power information to the network side, allowing the network side to determine the UE's height information, either by using access node height information or through UE measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If two-dimensional plane positioning technology is used, then positioning can be performed, but positioning precision is insufficient (at least 50 meters) and cannot be used for height positioning
Solution Approach 1:
The patent transitions from two-dimensional plane positioning to three-dimensional positioning by introducing height dimension. This is achieved by measuring receive power from multiple access nodes at different heights and using these power measurements to calculate the UE's height position, thereby resolving the limitation of 2D positioning technology.
Solution Approach 2:
The patent introduces receive power measurement as an intermediary parameter to bridge the gap between existing 2D positioning capabilities and 3D positioning requirements. By using receive power information from multiple access nodes as a mediator, the system can infer height position without requiring direct height measurement capabilities in traditional positioning methods.
2Measurement precision
If satellite positioning technology is used, then height positioning can be achieved, but horizontal precision is limited to 10 meters and application scope is limited to outdoor environments
Solution Approach 1:
The patent enables the wireless network system to provide height positioning services to itself using existing network infrastructure (access nodes and UEs). Instead of relying on external satellite systems, the network uses its own components to perform 3D positioning, thereby expanding application scope to indoor environments while maintaining positioning capabilities.
Solution Approach 2:
The patent makes the access node and UE serve multiple functions: traditional communication functions plus height positioning functions. The access nodes broadcast not only communication signals but also positioning reference signals, and UEs perform not only communication but also receive power measurement for height determination, creating a universal positioning solution for both indoor and outdoor environments.
3Adaptability or versatility
If WiFi feature indoor positioning technology is used, then indoor positioning can be performed, but feature measurement needs to be performed in advance on the positioning area, making wide promotion and implementation difficult
Solution Approach 1:
The patent performs preliminary configuration of access nodes with height information and enables them to broadcast positioning reference signals in advance. This preliminary setup allows UEs to perform height positioning measurements without requiring advance feature measurement of the positioning area, significantly reducing implementation complexity and enabling wide deployment.
Solution Approach 2:
The patent replaces the manual feature measurement process of WiFi positioning with an automated signal-based measurement system. Instead of requiring physical surveying and mapping of the positioning area, the system uses radio signal power measurements from access nodes to automatically determine positions, eliminating the need for advance area measurement and manual configuration.
4Reliability
If traditional positioning technologies are used, then positioning can be performed, but refined three-dimensional signal coverage cannot be achieved
Solution Approach 1:
The patent enables local quality optimization by providing position-specific signal coverage based on precise 3D location information. The network can adjust signal transmission parameters (power, direction, frequency) according to the UE's exact height and position, delivering refined and targeted signal coverage that improves communication reliability for each local position in the three-dimensional space.
Data Source
AI summary
A method for providing information about a height of a user equipment is disclosed. In an embodiment the method includes receiving, by user equipment, a first height requirement message sent by a network side device, wherein the first height requirement message is used to obtain a height information of a position in which the user equipment is located, listening, by the user equipment, to a broadcast message of an access node, wherein the broadcast message includes a node identifier of the access node and a receive power information of the access node received by the user equipment, and sending, by the user equipment, a response message to the network side device, wherein the response message includes the node identifier of the access node of the user equipment and the receive power information of the user equipment.