SRS Resource Configuration for Multi-Layer Uplink Transmission
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Solution Overview
Problem
The New Radio (NR) system faces limitations in uplink data transmission performance due to the restricted antenna capabilities of terminals, which are typically limited to two radio frequency transmitting channels, resulting in a small amount of data being transmitted and limited flexibility in terminal applications.
Innovation Solution
A resource configuration method where a network side device configures an SRS resource set for a terminal based on the terminal's reported antenna capability, allowing for more than two radio frequency transmitting channels, thereby enabling the terminal to transmit more data and improve uplink transmission performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the terminal is limited to two radio frequency transmitting channels, then the device complexity is reduced, but the uplink data transmission performance deteriorates
Solution Approach 1:
The patent changes the parameter of radio frequency transmitting channels from the conventional limit of two channels to supporting more than two channels (e.g., four channels). This parameter change enables terminals with advanced antenna capabilities to transmit more data in parallel, improving uplink data transmission performance without increasing device complexity for terminals that already have multiple antennas.
2Quantity of substance
If the terminal uses more than two radio frequency transmitting channels, then the amount of data transmitted increases, but the adaptability to different terminal capabilities deteriorates
Solution Approach 1:
The patent introduces dynamic adaptation by allowing the network side device to determine the specific number of radio frequency transmitting channels based on the terminal's actual capability. The terminal reports its antenna capability to the network, and the network dynamically configures the appropriate number of channels (e.g., 2 or 4), ensuring compatibility across different terminal types while enabling high-performance terminals to utilize more channels for increased data transmission.
3Adaptability or versatility
If the network configures SRS resource set based on advanced antenna capability, then the uplink transmission flexibility improves, but the device complexity on network side increases
Solution Approach 1:
The patent applies preliminary action by having the terminal report its antenna capability to the network side device before the network configures the SRS (Sounding Reference Signal) resource set. This advance information allows the network to pre-determine the appropriate number of radio frequency transmitting channels and configure the SRS resource set accordingly, improving uplink transmission flexibility while managing network side complexity through systematic capability-based configuration.
Data Source
AI summary
A resource configuration method is performed by a network side device. The method includes: receiving an antenna capability reported by a terminal, wherein the antenna capability includes that a maximum number of layers for transmission is greater than two layers; and configuring at least one Sounding Reference Signal (SRS) resource set for the terminal according to the antenna capability reported by the terminal including that the maximum number of layers for transmission is greater than two layers.