Multiple Bandwidth Parts Configuration for 5G mmWave Path Loss
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 5G communication systems face challenges in efficiently transmitting and receiving data over multiple partial frequency bands, particularly in ultra-high frequency bands like millimeter wave (mmW), which affects data rate and transmission distance, and requires advanced technologies such as beamforming and MIMO to mitigate path loss.
Innovation Solution
A method and apparatus that enable terminals and base stations to perform data transmission and reception using multiple partial frequency bands by exchanging capability information, configuring active bandwidth parts (BWPs), and controlling channel states, allowing for adaptive communication across multiple BWPs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If 5G communication systems use ultra-high frequency bands (millimeter wave) to achieve high data rate, then data rate is improved, but path loss increases and transmission distance is reduced
Solution Approach 1:
The patent divides the frequency band into multiple partial frequency bands (first frequency band and second frequency band) and assigns different communication methods to each. The first frequency band uses beamforming for long-distance transmission while the second frequency band uses MIMO for high data rate, allowing the system to segment the transmission task according to distance requirements and avoid excessive path loss in mmW bands.
Solution Approach 2:
The patent dynamically selects between different communication methods (beamforming or MIMO) based on the transmission distance and channel conditions. The base station determines which method to use by assessing the communication scenario, enabling adaptive optimization of path loss and data rate performance under varying conditions.
2Length of stationary object
If beamforming is used to reduce path loss and increase transmission distance, then transmission distance is improved, but data rate may be reduced compared to MIMO
Solution Approach 1:
The patent segments the frequency band usage based on transmission distance: beamforming is applied to the first frequency band for long-distance transmission where path loss is the primary concern, while MIMO is applied to the second frequency band for shorter distances where high data rate is the priority. This segmentation allows optimization of each metric in its appropriate context.
Solution Approach 2:
The patent changes the communication parameters (beamforming or MIMO) based on transmission distance and channel conditions. By dynamically adjusting these parameters, the system optimizes the trade-off between transmission distance and data rate, selecting beamforming for distance-critical scenarios and MIMO for rate-critical scenarios.
3Productivity
If MIMO is used to increase data rate, then data rate is improved, but transmission distance is reduced due to higher path loss
Solution Approach 1:
The patent segments the frequency band into two parts with different communication methods: the first frequency band uses beamforming for long-distance transmission, while the second frequency band uses MIMO for high data rate transmission over shorter distances. This segmentation resolves the contradiction by assigning appropriate methods to appropriate contexts.
Solution Approach 2:
The system dynamically selects between beamforming and MIMO based on transmission distance and channel conditions. For long-distance transmission, beamforming is selected to minimize path loss; for shorter distances with high data rate requirements, MIMO is selected. This dynamic adaptation optimizes the trade-off between distance and rate.
4Adaptability or versatility
If multiple frequency bands are supported to meet diverse service requirements (eMBB, mMTC, URLLC), then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent segments the frequency band into multiple partial frequency bands, each optimized for specific service types. The base station configures different communication methods (beamforming or MIMO) for different frequency bands based on service requirements, allowing eMBB, mMTC, and URLLC services to be supported with appropriate parameters for each band.
Solution Approach 2:
The patent implements a universal framework where the base station can dynamically select between beamforming and MIMO methods across multiple frequency bands to support diverse service requirements. This multi-functional approach allows a single system to handle different service types (eMBB, mMTC, URLLC) by adapting the communication method and frequency band selection.
Data Source
AI summary
The disclosure provides a method, performed by a terminal, of performing communication through multiple bandwidth parts (BWPs) in a wireless communication system, the method including: receiving a terminal capability information request from a base station; generating, based on the request, terminal capability information including capability information related to multiple active BWP of the terminal; transmitting the generated terminal capability information to the base station; receiving multiple active BWP configuration information configured based on the capability information related to multiple active BWP of the terminal from the base station; and performing communication with the base station through multiple BWPs activated based on the multiple active BWP configuration information.