Secondary Cell Activation via Integrated MAC CE Signaling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current communication technologies face delays in activating secondary cells due to separate signaling for temporary reference signal configuration, which hinders quick resource allocation in cell groups, especially when primary cells have insufficient resources.
Innovation Solution
A method and apparatus that send and receive information including activation/deactivation indications and temporary reference signal configurations directly within Media Access Control (MAC) elements, allowing for simultaneous indication and rapid activation of secondary cells, and cross-carrier scheduling support between primary and secondary cells.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate signaling is used for temporary reference signal configuration, then configuration accuracy is improved, but activation speed deteriorates
Solution Approach 1:
The patent combines the temporary reference signal configuration information and the secondary cell activation indication into a single MAC CE message. This merging eliminates the time delay between separate signaling transmissions while maintaining complete configuration accuracy, as both the activation command and the reference signal parameters are delivered simultaneously in one unified message structure.
2Adaptability or versatility
If conventional cross-carrier scheduling configuration is used, then scheduling flexibility is improved, but bidirectional scheduling capability deteriorates
Solution Approach 1:
The patent extends the cross-carrier scheduling configuration to support bidirectional scheduling where both primary cells and secondary cells can act as scheduling cells. The configuration message structure is designed to be universal, allowing any cell to be configured as a scheduling cell for other cells, thereby enabling flexible bidirectional resource allocation without requiring separate configuration mechanisms for each direction.
Data Source
AI summary
An information configuration method includes: sending, by a network side device to a terminal, first information of a cell group serving the terminal, where the first information includes: M pieces of activation or deactivation indication information, where the activation or deactivation indication information is used to indicate whether to activate a corresponding secondary cell; and N pieces of indication information of a temporary reference signal configuration, where the indication information of a temporary reference signal configuration is used to indicate the temporary reference signal configuration that is used by the terminal to activate a secondary cell or a secondary cell group; and the secondary cell group includes one or more secondary cells, where M is equal to the number of secondary cells that are configured for the terminal, both N and M are integers greater than or equal to 1, and N is less than or equal to M.