5G SRS Configuration for 8-Layer Uplink Transmission
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current SRS configurations in 5G systems do not effectively support uplink transmissions with 8 layers, leading to issues with cyclic shift calculations and antenna switching, which hinders the operation of 8-port SRS.
Innovation Solution
Enhancements to SRS configurations, including extended cyclic shift calculations and antenna port configurations, to support up to 8-port operations by modifying the maximum number of cyclic shifts and comb offsets, allowing for multiple comb offsets and cyclic shifts to be used across different antenna ports.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If current SRS configurations are used, then existing uplink transmission capabilities are maintained, but support for 8-layer uplink transmission cannot be achieved
Solution Approach 1:
The patent modifies the maximum number of cyclic shifts from 4 to 8, and adjusts the comb offset configurations to support 8-port SRS operations. This parameter change enables the system to handle 8-layer uplink transmission while maintaining calculation accuracy through updated formulas for cyclic shift allocation.
2Adaptability or versatility
If cyclic shift calculations are extended to support 8 ports, then 8-port SRS operation is enabled, but calculation complexity increases
Solution Approach 1:
The patent segments the cyclic shift allocation into multiple comb offsets, where each comb offset corresponds to a specific set of antenna ports. This segmentation allows the complex 8-port calculation to be divided into manageable portions, with each comb offset handling a subset of ports independently.
3Productivity
If antenna switching is enhanced for 8 layers, then uplink transmission capacity increases, but configuration complexity increases
Solution Approach 1:
The patent creates a universal configuration framework that can handle both traditional 4-port and extended 8-port SRS operations using the same resource set structure. The SRS resource set can be configured to support multiple antenna ports through comb offsets, providing multi-functionality without requiring separate configuration systems.
Data Source
AI summary
Systems, apparatuses, methods, and computer-readable media are directed to enhancements to sounding reference signal (SRS) configurations for fifth-generation (5G) systems. In embodiments disclosed herein, an apparatus comprises: memory to store sounding reference signal (SRS) configuration information for an uplink transmission with up to eight layers by a user equipment (UE); and processing circuitry, coupled with the memory, to: retrieve SRS configuration information from the memory, wherein the SRS configuration information includes a maximum number of cyclic shifts for a comb value, and wherein the maximum number of cyclic shifts is an integer multiple of eight; and encode a message for transmission to the UE that includes the SRS configuration information.