Beam Direction Configuration Using Spatial Filters and Coordinates
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Solution Overview
Problem
Existing wireless communication systems face challenges in accurately determining beam direction configurations, particularly in heterogeneous networks with non-terrestrial elements, leading to complexity and latency in uplink and downlink signal transmissions.
Innovation Solution
The system employs a method and apparatus that utilize spatial filters and beam directions indicated by geographic or local coordinate system information, including azimuth and elevation angle uncertainties, to enhance beam direction determination for uplink and downlink resources, reducing complexity and latency by providing precise direction indications to TRPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If beam direction configurations are determined using traditional methods in heterogeneous networks, then beam direction can be established, but complexity and latency increase in uplink and downlink signal transmissions
Solution Approach 1:
The patent changes the parameter representation from traditional beam indices to geographic coordinate parameters (azimuth and elevation angles). This transformation simplifies beam direction determination by using intuitive spatial parameters that directly map to physical directions, reducing the computational complexity and latency in beam management operations.
Solution Approach 2:
The patent segments the beam direction information into two independent components: azimuth angle (horizontal direction) and elevation angle (vertical direction). This segmentation allows each component to be determined and adjusted independently, simplifying the overall beam management process and reducing the complexity of coordinate transformations in heterogeneous networks.
2Measurement precision
If traditional beam direction methods are used, then beam transmission can occur, but positioning accuracy deteriorates in complex network environments
Solution Approach 1:
The patent transforms beam direction representation from discrete beam indices to continuous geographic coordinates (azimuth and elevation angles with uncertainty ranges). This parameter change enables more precise positioning by providing continuous spatial information rather than discrete beam selections, improving measurement precision in complex network environments.
Solution Approach 2:
The patent introduces geographic coordinate information as an intermediary layer between the transmitter and receiver. This intermediary representation (azimuth and elevation angles) serves as a common language that simplifies beam direction communication and enhances positioning accuracy by providing explicit spatial references that are independent of specific network configurations.
Data Source
AI summary
An apparatus for transmitting and receiving data in a wireless communication system according to an embodiment is provided, configured to receive a first message and/or a second message from a further network entity, and configured to determine one or more transmit spatial filters and/or one or more receive spatial filters and/or one or more beam directions; wherein the transmit spatial filters and/or the receive spatial filters are identical to at least one initial spatial filter or are derived by the apparatus from the at least one initial spatial filter; wherein the beam directions are identical to at least one initial beam direction or are derived by the apparatus from the at least one initial beam direction. Furthermore, the apparatus is configured to apply the transmit spatial filters and/or the receive spatial filters and/or the beam directions on one or more downlink resources and/or on one or more uplink resources.