SRS Resource Activation via MAC CE for 5G Component Carrier Sets
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Solution Overview
Problem
The existing methods for activating or deactivating SRS resource sets in 5G mobile communication systems are inefficient due to high signaling overhead and complexity, especially when dealing with large bandwidths.
Innovation Solution
The proposed method utilizes a Media Access Control (MAC) control element (CE) to activate or deactivate SRS resources by including an identifier of a component carrier set, which allows for simultaneous activation or deactivation of multiple SRS resources corresponding to a component carrier set, reducing signaling overhead and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the network device activates or deactivates SRS resource sets individually for each bandwidth part, then each SRS resource set can be precisely controlled, but the signaling overhead increases and activation/deactivation efficiency decreases
Solution Approach 1:
The patent merges multiple SRS resource set activation/deactivation operations into a single MAC CE message. The MAC CE includes a first field indicating the first SRS resource set ID and a second field indicating a second SRS resource set ID, allowing simultaneous activation or deactivation of multiple SRS resource sets associated with different bandwidth parts through one signaling message, thereby reducing signaling overhead while maintaining control precision
Solution Approach 2:
The MAC CE message is designed with multi-functionality to handle different SRS resource set operations. The message structure includes fields that can indicate different SRS resource set IDs and activation/deactivation states, enabling a single message format to universally manage multiple SRS resource sets across different bandwidth parts without requiring separate dedicated messages for each operation
2Reliability
If the network device activates or deactivates each SRS resource set separately, then detailed control over each bandwidth part is achieved, but the activation/deactivation time increases
Solution Approach 1:
Multiple SRS resource set activation or deactivation operations that would normally occur sequentially are merged into a single parallel operation through the MAC CE mechanism. The network device sends one MAC CE message containing identifiers for multiple SRS resource sets, and the terminal device processes all indicated resource sets simultaneously, dramatically reducing the total activation/deactivation time while maintaining accurate control over each bandwidth part
3Ease of operation
If multiple SRS resource sets are activated individually through separate MAC CE messages, then each resource set can be independently managed, but the signaling efficiency decreases
Solution Approach 1:
The patent combines multiple independent SRS resource set management operations into a single unified MAC CE message. The message structure includes fields for indicating multiple SRS resource set IDs and their corresponding activation/deactivation states, allowing the terminal device to independently manage each resource set as specified while receiving all management instructions through one efficient signaling message, thereby improving signaling efficiency without sacrificing independent management capability
Data Source
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AI summary
Embodiments of the present application provide a method for activating or deactivating an SRS resource, the method comprising : a terminal apparatus receiving a MAC CE, wherein the MAC CE comprises an ID of a CC set, and further comprises an ID of at least one SRS resource, and the MAC CE is used to activate or deactivate the at least one SRS resource corresponding to the CC set; alternatively, the MAC CE further comprises an ID of an SRS resource set, and is used to activate or deactivate the SRS resource set corresponding to the CC set. The invention enables activating or deactivating a SRS resource or SRS resource set corresponding to one CC set by means of the MAC CE, and the CC set comprises multiple BWPs, thereby providing higher efficiency and lower signaling overheads compared to solutions in which SRS resource sets corresponding to BWPs are activated or deactivated one by one.