Multi-Link CSI Capability Reporting for Power-Aware Estimation
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing channel state information (CSI) estimation across multiple communication links without excessive power expenditure or resource inefficiency, particularly in scenarios involving Uu and sidelink communications.
Innovation Solution
User equipment (UE) reports its CSI processing unit (CPU) capability to the network device, allowing for separate or combined management of CPU resources across links, with prioritization based on priority levels and FIFO principles to ensure efficient CSI estimation procedures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If CSI estimation is performed on multiple links simultaneously, then communication quality is improved, but power consumption increases excessively
Solution Approach 1:
The patent segments the CSI estimation process by introducing separate CPU capabilities for different links (Uu link and sidelink). The UE reports distinct CPU capability values for each link type, allowing the network to allocate processing resources selectively rather than requiring full CSI estimation for all links simultaneously, thus reducing overall power consumption while maintaining quality where needed.
Solution Approach 2:
The patent applies partial action by enabling the network to trigger CSI estimation procedures selectively based on reported CPU capabilities. Instead of requiring complete CSI estimation for all communication links, the system can perform partial estimation only when and where necessary, balancing communication quality requirements with power consumption constraints.
2Productivity
If CSI estimation procedures are triggered frequently, then communication efficiency is improved, but CPU capacity is exceeded
Solution Approach 1:
The patent implements preliminary action by having the UE report its CPU capability in advance before CSI estimation procedures are triggered. This capability indication allows the network to pre-plan and manage CSI estimation triggers appropriately, avoiding overloading the UE's processing capacity while maintaining efficient communication through strategic timing of estimation procedures.
Solution Approach 2:
The patent employs feedback mechanisms where the UE reports its CPU capability to the network device, and the network adjusts its CSI estimation triggering behavior accordingly. This feedback loop ensures that CSI estimation procedures are activated only when appropriate, balancing communication efficiency with CPU capacity constraints.
3Adaptability or versatility
If separate CPU capabilities are reported for separate links, then resource allocation is optimized, but signaling overhead increases
Solution Approach 1:
The patent applies local quality by reporting CPU capabilities specifically for each link type (Uu link and sidelink) rather than using a single generic capability value. This link-specific approach allows for optimized resource allocation tailored to the actual requirements of each communication link, with the added benefit that the capability information is integrated into existing capability reporting frameworks, minimizing additional signaling overhead.
Data Source
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AI summary
Methods, systems, and devices for wireless communications are described. Generally, a user equipment (UE) may perform channel state information (CSI) estimation on multiple links (e.g., a Uu link and a sidelink) without excessive power expenditures. The UE may report a CSI processing unit (CPU) capability to a network device. The CPU capability information may include separate CPU capabilities for separate links, or a single CPU capability for multiple links. The network device, the UE, or both, may trigger CSI estimation procedures that do not exceed the reported CPU capability, or may otherwise prioritize CSI estimation procedures based on the CPU capability. The UE may then perform CSI estimation procedures according to one or more rules associated with the CPU capabilities. In some examples, such rules may be explicitly signaled to the UE, or may be included in one or more standard documents.