SRS Port Transmit Power Allocation in 5G Resource Sets
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Solution Overview
Problem
In 5G mobile communications systems, there is a challenge in allocating transmit power for sounding reference signals (SRS) across multiple SRS resources or resource sets when they are transmitted simultaneously, which affects channel estimation and resource allocation.
Innovation Solution
The proposed method involves determining the transmit power for each port of multiple SRS resources or resource sets such that the total power across all ports does not exceed the allocated power for the SRS resource set, ensuring efficient power allocation and avoiding communication faults.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple SRS resources or resource sets are transmitted simultaneously in one time unit, then channel estimation capability is improved, but transmit power allocation becomes complex and difficult to manage
Solution Approach 1:
The patent segments the SRS resources into multiple resource sets, where each resource set can be independently configured and managed. This segmentation allows the terminal to handle power allocation for multiple resource sets separately, reducing the overall complexity of power management while enabling simultaneous transmission for improved channel estimation
Solution Approach 2:
The patent introduces dynamic power allocation mechanisms where the terminal can adjust transmit power for different SRS resource sets based on current channel conditions, power availability, and transmission priorities. This dynamic approach enables flexible power management that adapts to varying system requirements while maintaining efficient channel estimation
2Reliability
If transmit power is allocated to multiple ports in SRS resources, then transmission reliability is improved, but power management complexity increases
Solution Approach 1:
The patent applies local quality by allowing different power allocation strategies for different ports within SRS resources. Each port can be configured with specific power parameters tailored to its transmission requirements, enabling optimized reliability for each port while maintaining manageable power control through localized configuration rather than global management
3Adaptability or versatility
If flexible SRS resource configuration is implemented in 5G systems, then system adaptability is improved, but power allocation control becomes more difficult
Solution Approach 1:
The patent implements preliminary action by pre-configuring power parameters and resource allocation rules for SRS resource sets before actual transmission occurs. This advance configuration establishes power management frameworks that simplify real-time control, allowing the system to maintain high adaptability through flexible resource configuration while reducing operational complexity through pre-established power allocation mechanisms
Data Source
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AI summary
This application provides an SRS transmission method, including: determining a quantity of ports corresponding to each of a plurality of SRS resources on a first time domain resource, where the plurality of SRS resources belong to a first SRS resource set; determining, based on the quantity of ports corresponding to each of the plurality of SRS resources and transmit power corresponding, in a first time unit, to the first SRS resource set, transmit power of each port corresponding to each of the plurality of SRS resources, where a sum of transmit power of all ports corresponding to the plurality of SRS resources is less than or equal to transmit power corresponding to the first SRS resource set, and the first time unit includes the first time domain resource, or the first time unit is the first time domain resource; and simultaneously transmitting, on the first time domain resource based on the transmit power of each port, SRSs carried in the plurality of SRS resources. In the foregoing method, allocation of the transmit power of each port during simultaneous transmission of a plurality of SRSs can be supported.