Combination DCI Monitoring for Multi-Cell Scheduling Efficiency
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Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently monitoring and scheduling transmissions across multiple cells, leading to increased resource usage and complexity in decoding downlink control information (DCI).
Innovation Solution
Implementing a method for determining blind decode and control channel element limits based on a scaling factor less than one, and using combination DCI to schedule transmissions in multiple cells, reducing the need for individual DCI monitoring in each cell.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If individual DCI monitoring is performed in each cell, then scheduling flexibility is improved, but decoding complexity and resource usage increase
Solution Approach 1:
The patent combines multiple individual DCI messages into a single unified DCI structure that schedules transmissions across multiple cells simultaneously. This merging approach maintains scheduling flexibility by allowing independent resource allocation per cell while reducing the number of separate DCI decoding operations required at the UE, thereby resolving the contradiction between adaptability and device complexity.
Solution Approach 2:
The unified DCI structure is designed to serve multiple cells with a single message, making it multi-functional. The DCI includes cell-specific resource allocation fields that enable flexible scheduling across different cells while being transmitted and decoded as a single entity, thus achieving both scheduling versatility and reduced decoding complexity.
2Manufacturing precision
If individual DCI monitoring is performed in each cell, then transmission scheduling accuracy is improved, but PDCCH resource requirements increase
Solution Approach 1:
The patent merges multiple cell-specific scheduling decisions into a single PDCCH transmission containing a unified DCI structure. This consolidation reduces the total number of PDCCH resources required while preserving cell-level scheduling accuracy through dedicated resource allocation fields within the unified DCI for each scheduled cell.
3Adaptability or versatility
If multiple DCI messages are monitored across multiple cells, then resource allocation flexibility is improved, but overall system efficiency decreases
Solution Approach 1:
The patent combines multiple DCI monitoring operations into a single unified DCI reception and decoding process. This merging maintains resource allocation flexibility by preserving cell-specific scheduling capabilities while improving system efficiency by reducing the total number of decoding operations and processing overhead at the UE.
Data Source
AI summary
Certain aspects of the present disclosure provide techniques that may for configuration of parameters for monitoring for a combination downlink control information (DCI) that schedules data and/or reference signal transmissions in multiple cells. An example method generally includes determining, a blind decode (BD) limit and a control channel element (CCE) limit based on a scaling factor less than one, determining physical downlink control channel (PDCCH) parameters based on the BD limit and the CCE limit for monitoring for a combination downlink control information (DCI) that schedules at least one of data or reference signal (RS) transmissions in multiple cells, and monitoring for the combination DCI based on the determined PDCCH parameters.