Multi-Panel Uplink Configuration Using Indexed SRS Resource Sets
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Solution Overview
Problem
Existing network devices can only configure one sounding reference signal (SRS) resource set, limiting the precoding and power control capabilities for uplink transmissions from terminals with multiple panels, which hinders effective communication with multiple transmitting and receiving points.
Innovation Solution
Configuring multiple SRS resource sets for physical uplink shared channels (PUSCHs) associated with different panels, using different beams and facing different transmitting and receiving points (TRPs), and employing different control resource set pool indexes for enhanced transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If one SRS resource set is configured for a terminal, then the configuration is simple, but the precoding and power control cannot support uplink transmission of multiple transmitting and receiving points
Solution Approach 1:
The patent segments the SRS resource configuration by associating different SRS resource sets with different control resource set pool indexes. This allows the terminal to have multiple SRS resource sets (first SRS resource set associated with first control resource set pool index, second SRS resource set associated with second control resource set pool index) that can independently support precoding and power control for different transmitting and receiving points, thereby resolving the contradiction between configuration simplicity and multi-TRP support capability
Solution Approach 2:
The patent makes the SRS resource set configuration universal by enabling each SRS resource set to be associated with different control resource set pool indexes. This multi-functionality allows the same SRS resource set structure to serve multiple purposes: supporting single-TRP transmission when one index is used, and supporting multi-TRP transmission when multiple indexes are used, thus achieving both configuration simplicity and adaptability to different transmission scenarios
2Productivity
If a single SRS resource set is used, then the configuration overhead is low, but multiple PUSCH transmissions from different panels with different beams and TRPs cannot be simultaneously supported
Solution Approach 1:
The patent introduces a new dimension for SRS resource set differentiation by associating them with control resource set pool indexes. Instead of simply increasing the number of SRS resource sets, the invention adds the index dimension that allows logical grouping and differentiation. This enables the terminal to maintain a manageable number of SRS resource sets while supporting multiple PUSCH transmissions from different panels with different beams and TRPs through the index-based association mechanism
3Adaptability or versatility
If precoding and power control are associated with a single power control parameter set through SRI, then the control mechanism is simple, but independent precoding and power control for multiple panels are not achieved
Solution Approach 1:
The patent applies local quality by allowing different SRS resource sets (and their associated power control parameter sets) to be configured for different panels and TRPs. Each SRS resource set can have its own precoding and power control parameters, enabling locally optimized transmission for each panel-TRP pair. This resolves the contradiction by making the precoding and power control configuration adaptable to specific panel requirements while maintaining a systematic structure through the control resource set pool index association
Data Source
AI summary
A method for multi-panel enhanced transmission configuration, performed by a network device, includes: configuring at least one sounding reference signal (SRS) resource set for transmission of a plurality of physical uplink shared channels (PUSCHs) that are associated with different panels, face different transmitting and receiving points (TRPs), and use different beams; in which the PUSCHs are PUSCHs simultaneously and respectively sent from different panels, using different beams, and facing different TRPs by a terminal having multiple panels based on scheduling of a plurality of pieces of downlink control information (DCI); and sending configuration information corresponding to the at least one SRS resource set to the terminal, in which the configuration information is used to indicate the at least one SRS resource set, and indicate that the at least one SRS resource set is associated with different control resource set pool indexes.