CSI Report Mapping Order for Consistent Multi-CSI Transmission
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Solution Overview
Problem
In existing communication technologies, the lack of a unified mapping rule for multiple pieces of Channel State Information (CSI) in a CSI report leads to inconsistent understanding between terminals and network-side devices, affecting CSI reception.
Innovation Solution
A method and apparatus for determining a mapping order of CSI reports based on first information, including spatial adaptation patterns or sub-configurations, ensuring a one-to-one correspondence with each piece of CSI, using identifiers and quantities related to antenna ports and panels, to facilitate consistent understanding between terminals and network-side devices.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple pieces of CSI are included in one CSI report, then the information transmission capacity is improved, but the mapping order consistency deteriorates due to lack of unified mapping rule
Solution Approach 1:
The patent applies parameter changes by using different identification parameters (such as serving cell index, CSI report configuration index, CSI resource configuration index, SRS resource indicator, SRS bandwidth indicator, SRS port indicator, and SRS spatial relation indicator) to determine the mapping order of multiple CSI pieces. By changing these parameters, the system establishes a unified mapping rule that ensures consistent interpretation between terminal and network side while maintaining the ability to include multiple CSI pieces in one report.
2Adaptability or versatility
If no unified mapping rule is formulated, then the flexibility in CSI reporting is improved, but the understanding consistency between terminal and network-side device deteriorates
Solution Approach 1:
The patent implements feedback mechanisms where the terminal determines the mapping order of multiple CSI pieces based on identification parameters, and the network side uses the same parameters to interpret the CSI report. This feedback loop ensures that both sides arrive at the same mapping order understanding, preventing information loss while maintaining reporting flexibility through parameter-based adaptation.
3Measurement precision
If a unified mapping rule is established, then the CSI reception accuracy is improved, but the system complexity increases due to multiple identification parameters
Solution Approach 1:
The patent segments the mapping order determination process into multiple independent identification parameters (serving cell index, CSI report configuration index, CSI resource configuration index, and SRS-related indicators). Each parameter can be independently determined and combined, which improves CSI reception accuracy through precise mapping while managing system complexity by breaking down the determination process into manageable segments.
Data Source
AI summary
A Channel State Information (CSI) transmission method and apparatus, a terminal, and a network-side device, are provided. The method includes sending at least one CSI report. The at least one CSI report includes a first CSI report including at least two pieces of CSI. A mapping order of the at least two pieces of CSI is determined based on first information. The first information includes at least one of the following: second information associated with each of the at least two pieces of CSI, reported content of each of the at least two pieces of CSI, or an order of at least two spatial adaptation patterns or an order of at least two sub-configurations configured or indicated by a network-side device. The at least two spatial adaptation patterns or the at least two sub-configurations are in a one-to-one correspondence with the at least two pieces of CSI.