Sidelink CSI Reporting Configuration via RRC Segmentation
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Solution Overview
Problem
Current wireless communication systems face limitations in communication flexibility and efficiency, particularly in sidelink channel state information (CSI) reporting, which hinders the improvement of communication capacity, speed, and flexibility in user equipment and base station operations.
Innovation Solution
The implementation of a user equipment and base station apparatus that receives and transmits radio resource control (RRC) messages to configure sidelink bandwidth parts, resource pools, and sidelink channel state information-reference signals, enabling efficient sidelink CSI reporting based on these configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If traditional communication structures are used for sidelink communications, then system simplicity is maintained, but communication flexibility and efficiency are limited
Solution Approach 1:
The patent segments the sidelink communication configuration into distinct components: SL BWP configuration, resource pool configuration, and SCSI-RS configuration. Each component is independently configured through separate RRC messages, allowing flexible combination and adaptation without requiring complete system redesign, thus improving communication flexibility while managing complexity through modular organization
Solution Approach 2:
The patent implements dynamic configuration where the UE can be provided with different SL BWPs, resource pools, and SCSI-RS configurations through RRC messages. The UE dynamically selects and reports CSI based on the configured parameters, enabling adaptive communication that responds to varying channel conditions and requirements, thereby enhancing versatility without fixed structural constraints
2Productivity
If comprehensive SL BWP and resource pool configuration is implemented, then communication efficiency is improved, but configuration complexity increases
Solution Approach 1:
The patent creates a universal configuration framework where a single SL BWP configuration can encompass multiple resource pools, and the same configuration structure serves multiple communication scenarios. The RRC message framework provides multi-functional configuration capabilities, allowing one set of configuration mechanisms to handle diverse sidelink communication needs, thereby improving efficiency without proportionally increasing complexity
Solution Approach 2:
The patent implements preliminary configuration of SL BWP, resource pools, and SCSI-RS parameters through RRC messages before actual communication occurs. The UE receives and stores these configurations in advance, preparing the necessary parameters for efficient CSI reporting and communication operations. This preliminary setup eliminates the need for complex real-time configuration adjustments, improving communication efficiency while managing configuration complexity through advance preparation
Data Source
AI summary
A user equipment (UE) that performs sidelink (SL) communications is described. The UE includes receiving circuitry configured to: receive a first radio resource control (RRC) message comprising first information used for configuring an SL bandwidth part (SL BWP). The receiving circuitry is also configured to receive a second RRC message comprising second information used for configuring one or more resource pools for SL transmission within the SL BWP. The receiving circuitry is further configured to receive a third RRC message comprising third information used for configuring a sidelink channel state information-reference signal (SCSI-RS). The UE also includes transmitting circuitry configured to perform SL channel state information (CSI) reporting based on the third information. The third information is associated with at least one of the SL BWP and one resource pool of the one or more resource pools for the SL transmission.