Sounding Reference Signal Beamforming via Resource Configuration
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Solution Overview
Problem
In LTE systems, there is no existing solution for performing beamforming on sounding reference signals (SRS) due to the use of low frequencies, which limits coverage when high frequencies are used, necessitating a method to enhance SRS transmission.
Innovation Solution
A method and device for configuring resources and indicating beam correspondence to allow User Equipment (UE) to implement beamforming on SRS by determining the appropriate beam for SRS transmission based on configured resources and indication information from the base station.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If high frequency spectrum resources are used to satisfy communication rate and capacity requirements, then frequency resources are increased, but transmission loss increases and coverage becomes narrower
Solution Approach 1:
The patent changes the frequency parameter from low frequency to high frequency to increase available spectrum resources for communication. This parameter change enables the system to access richer frequency resources while accepting the trade-off of higher transmission loss, which is then compensated through beamforming technology.
2Area of stationary object
If beamforming technology is introduced to enhance coverage in high frequency systems, then coverage is improved, but system complexity increases due to the need for beam management
Solution Approach 1:
The patent applies preliminary action by pre-configuring beam parameters and beamforming settings before actual SRS transmission. The base station prepares beamforming configurations in advance, which reduces the complexity of real-time beam management during operation while maintaining enhanced coverage benefits.
3Productivity
If beamforming processing is applied to SRS transmission in high frequency systems, then transmission efficiency is improved, but the prior art lacks solutions for performing beamforming on SRS
Solution Approach 1:
The patent achieves universality by making the SRS transmission method applicable to both high frequency systems requiring beamforming and low frequency systems without beamforming. The solution provides a unified framework that adapts to different frequency scenarios, enhancing transmission efficiency in high frequency while maintaining compatibility with existing LTE systems.
Data Source
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AI summary
Embodiments of the present invention relate to the communications field, and disclose an information transmission method and device to implement beamforming on an SRS. A specific solution is as follows: A base station configures at least one first resource for a UE, where the first resource is used by the UE to transmit a target channel and/or signal; and the base station transmits first indication information to the UE, where the first indication information is used to indicate a correspondence between the first resource and a beam, or the first indication information is used to indicate a correspondence between the first resource and a second resource. The embodiments of the present invention are used in a beamforming process.