SRS Resource Set Dynamic TCI State Detachment
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Solution Overview
Problem
The current unified TCI state framework for SRS transmission in communication networks is not flexible enough to handle multi-panel uplink operations efficiently, limiting the ability to configure SRS resource sets dynamically and associate them with indicated TCI states, which hampers simultaneous multi-panel transmission and increases latency and signaling overhead.
Innovation Solution
The solution involves configuring SRS resource sets in a dynamic manner within the unified TCI state framework, allowing terminal devices to detach and attach SRS resource sets from indicated TCI states dynamically, and using bitmaps or DCI messages to indicate which SRS resource sets follow or do not follow specific TCI states, enabling flexible beam management and uplink transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If SRS resource sets are configured to follow unified TCI states in a static manner, then the system maintains simple configuration management, but the system lacks flexibility in handling multi-panel uplink operations and cannot dynamically associate SRS resource sets with indicated TCI states
Solution Approach 1:
The patent applies dynamics by enabling SRS resource sets to dynamically follow or detach from indicated TCI states based on operational needs. The network device can configure SRS resource sets to follow unified TCI states when dynamic adaptation is needed, while allowing detachment when static configuration suffices, thus achieving flexibility without permanent complexity.
Solution Approach 2:
The patent implements universality by designing the SRS resource set configuration to serve multiple functions: it can follow unified TCI states for dynamic multi-panel operations, detach for static configurations, and support both sounding and transmission purposes. This multi-functional design eliminates the need for separate configuration mechanisms for different scenarios.
2Productivity
If the system supports simultaneous multi-panel transmission with dynamic TCI state association, then uplink transmission efficiency improves, but signaling overhead and latency increase
Solution Approach 1:
The patent applies preliminary action by pre-configuring SRS resource sets to follow unified TCI states before multi-panel transmission is needed. This allows the terminal device to have SRS resource sets ready to immediately follow indicated TCI states when multi-panel operation is activated, reducing the latency that would otherwise occur during dynamic configuration.
Solution Approach 2:
The patent ensures continuity of useful action by maintaining the association between SRS resource sets and unified TCI states throughout the multi-panel transmission process. Once configured to follow, the SRS resource sets continuously track TCI state indications without interruption or reconfiguration delays, ensuring uninterrupted uplink transmission efficiency.
3Adaptability or versatility
If SRS resource sets are configured to follow indicated TCI states dynamically, then beam management flexibility improves, but signaling overhead increases
Solution Approach 1:
The patent applies universality by designing the SRS resource set to serve multiple purposes: it can follow unified TCI states for beam management, detach for other operations, and support both sounding and transmission functions. This multi-functionality reduces the need for separate signaling mechanisms for different beam management scenarios, thereby reducing overall signaling overhead while maintaining flexibility.
Data Source
AI summary
Embodiments of the present disclosure relate to methods and apparatuses for sounding reference signal transmission. According to some embodiments, an apparatus is caused at least to: receive, from a network device sounding reference signal (SRS) configuration comprising one or more SRS resource sets; receive, from the network device, a message comprising an indication of which one of the one or more SRS resource sets is configured or enabled to follow or not follow corresponding one or more indicated transmission configuration indication (TCI) states from an activated TCI list for the apparatus; and transmit, to the network device, an SRS based on the indication. In this way, SRS resource sets may be dynamically detached to not follow specific TCI state and used for sounding the uplink channel in an efficient manner.