SFN SRS Transmission With One Resource Set and Multiple Tx Parameters
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Solution Overview
Problem
Conventional wireless communications systems face inefficiencies in resource utilization and increased signaling overhead due to the need for multiple SRS resource sets with separate Tx parameters for transmitting repetitions of the same message, which is not supported in single-frequency network (SFN) configurations.
Innovation Solution
The proposed solution involves transmitting SRSs in an SFN configuration where a single SRS resource set is associated with multiple sets of Tx parameters, allowing SRSs to be transmitted using multiple beams, precoders, and TCI states, thereby reducing the need for multiple SRS resource sets and optimizing resource use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple SRS resource sets with separate Tx parameters are used for transmitting repetitions, then transmission reliability is improved, but signaling overhead increases and resource utilization efficiency deteriorates
Solution Approach 1:
The patent merges multiple SRS resource sets into a single SRS resource set that can carry multiple sets of transmit parameters. Instead of maintaining separate resource sets for different transmissions, the invention combines them into one unified structure that efficiently manages multiple parameter sets, thereby reducing signaling overhead while maintaining transmission reliability.
Solution Approach 2:
The single SRS resource set is designed to serve multiple functions by supporting multiple sets of transmit parameters simultaneously. This multi-functional approach allows the same resource set to be used for different transmission scenarios (different beams, precoders, TCI states) without requiring separate dedicated resource sets, thus improving resource utilization efficiency.
2Reliability
If multiple SRS resource sets with separate Tx parameters are used for transmitting repetitions, then transmission reliability is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
By merging multiple SRS resource sets into one unified resource set that can accommodate multiple parameter sets, the invention eliminates redundant resource allocations. This consolidation improves resource utilization efficiency while maintaining the reliability benefits of having multiple transmission parameter sets available.
Solution Approach 2:
The unified SRS resource set is designed to be universal, supporting multiple transmit parameter sets within a single structure. This multi-functionality allows the system to efficiently utilize resources by selecting appropriate parameter sets from the same resource set rather than being constrained to separate dedicated resource sets, thereby improving overall resource utilization efficiency.
3Device complexity
If a single SRS resource set with multiple Tx parameters is used, then signaling overhead is reduced and resource efficiency is improved, but compatibility with conventional systems deteriorates
Solution Approach 1:
The invention introduces dynamic configurability to the SRS resource set, allowing it to adapt between conventional and new operational modes. The resource set can be dynamically configured to support either traditional separate resource set structures or the new unified structure with multiple parameter sets, enabling smooth transition and maintaining compatibility with existing systems while supporting advanced features.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive, from a network entity, first control signaling indicating a single frequency network (SFN) configuration associated with a first sounding reference signal (SRS) resource of an SRS resource set, where the SFN configuration indicates multiple sets of transmission parameters for SFN transmissions associated with the first SRS resource. The UE may then transmit an SRS associated with the first SRS resource in accordance with a first set of transmission parameters indicated by the SFN configuration. The UE may further transmit the SRS associated with the first SRS resource in accordance with a second set of transmission parameters indicated by the SFN configuration.