CSI Report Prioritization for 5G Processing Unit Allocation
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently managing channel state information (CSI) processing units (CPUs) and determining priorities for CSI reports, leading to increased power consumption and complexity in 5G networks due to the large number of antennas and varying antenna patterns.
Innovation Solution
A method to determine the number of CSI processing units occupied by CSI reports and establish priorities based on predefined rules, including parameters such as time domain behavior, CSI-related quantities, and antenna patterns, to optimize CPU allocation and reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the number of antennas and antenna patterns are increased to support more use-case characteristics in 5G networks, then the adaptability and coverage are improved, but the power consumption and processing complexity increase significantly
Solution Approach 1:
The patent segments CSI reporting into multiple types (e.g., Type 0, Type 1, Type 2, Type 3) with different processing complexities and CPU requirements. Each type handles specific use-case characteristics, allowing the system to activate only the necessary segments based on current network conditions, thereby reducing overall power consumption while maintaining adaptability.
Solution Approach 2:
The patent implements dynamic CSI reporting where the network can activate or deactivate specific CSI report types based on real-time conditions. The gNB can dynamically adjust which CSI types are reported by configuring appropriate parameters, enabling the system to adapt to varying traffic patterns and channel conditions without continuously processing all possible CSI types, thus reducing power consumption.
2Adaptability or versatility
If multiple types of CSI reports are configured to handle different antenna patterns and use-cases, then the versatility is improved, but the device complexity and processing overhead increase
Solution Approach 1:
The patent divides CSI reporting into distinct types with clearly defined processing procedures. Each CSI type (Type 0, Type 1, Type 2, Type 3) has specific processing rules and CPU requirements documented in tables within the patent. This segmentation allows the wireless device to implement only the processing logic needed for activated CSI types, reducing overall complexity.
Solution Approach 2:
Different CSI report types have different processing requirements and are applied to different scenarios. The patent assigns specific processing characteristics to each CSI type based on local requirements - for example, Type 0 CSI may use simpler processing while Type 1 CSI uses more complex processing. This local quality approach optimizes the balance between versatility and complexity by matching processing intensity to actual needs.
3Measurement precision
If all configured CSI reports are processed simultaneously to ensure comprehensive channel state information, then the measurement precision is improved, but the productivity and response time deteriorate
Solution Approach 1:
The patent implements dynamic CSI reporting activation where the gNB configures which CSI types should be reported based on current channel conditions and traffic requirements. Not all CSI types are processed simultaneously - only those activated by the network are computed and reported. This dynamic approach maintains measurement precision for necessary CSI types while improving overall processing efficiency by avoiding unnecessary computations.
Solution Approach 2:
The patent applies partial processing by computing only the necessary portion of CSI reports based on activation status. When certain CSI types are not needed for current operations, their processing is partially or completely skipped. This partial action approach ensures that sufficient channel state information is obtained for active services while avoiding the productivity loss that would result from processing all possible CSI types regardless of need.
Data Source
AI summary
Systems, methods, and apparatus for wireless communication are described. A wireless communication method includes receiving, by a wireless device, one or more channel state information (CSI) report configurations, where each CSI report configuration of the one or more CSI report configurations configures one or more CSI reports. The method further includes determining, by the wireless device, a number of CSI processing units (CPUs) occupied by one or more CSI reports configured by a CSI report configuration of the one or more CSI report configurations. The method further includes processing, by the wireless device, one or more sets of CSIs based on a predefined rule related to the number of CPUs occupied by the one or more CSI reports. The described techniques may be adopted by a network device or by a wireless device.