Terminal TCI State Activation via MAC CE Time Offset
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Solution Overview
Problem
Current radio communication technologies face challenges in maintaining communication quality and throughput due to the lack of advanced details in AI-aided beam management.
Innovation Solution
A terminal and base station implementation that includes a receiving section for MAC Control Elements containing a field indicating a time period for activating a TCI state, and a control section to manage this activation based on the received MAC CE.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If AI-aided beam management is implemented without concrete details, then the system can be set up, but communication throughput and communication quality cannot be improved
Solution Approach 1:
The patent introduces a time offset parameter in the MAC CE to control the timing between beam indication and actual beam switching. This parameter change enables the system to optimize communication quality by allowing adequate time for beam alignment while maintaining high throughput through efficient time management.
Solution Approach 2:
The patent implements preliminary beam indication through MAC CE signaling before actual beam switching occurs. The time offset field allows the system to prepare and indicate beam changes in advance, enabling smooth transitions and maintaining communication quality without interrupting data transmission.
2Reliability
If beam switching is performed rapidly, then communication quality can be maintained, but the terminal cannot properly process beam indication signals
Solution Approach 1:
The MAC CE includes a time offset field that indicates the timing between beam indication reception and actual beam switching. This preliminary timing information allows the terminal to allocate sufficient processing time while maintaining rapid beam switching capability, ensuring both communication quality and efficient signal processing.
Solution Approach 2:
The patent establishes a feedback mechanism where the terminal reports beam measurement results and the base station adjusts beam indications accordingly. The time offset parameter enables the terminal to process feedback signals adequately while maintaining rapid response capability for beam switching.
3Measurement precision
If the TCI state activation time is extended, then the terminal can accurately track beams, but the time period until activation increases
Solution Approach 1:
The MAC CE includes a time offset field that provides advance timing information for TCI state activation. This allows the terminal to prepare for beam switching in advance, improving beam tracking accuracy while controlling the activation time period through efficient time management.
Solution Approach 2:
The patent implements dynamic time offset adjustment based on terminal capability and communication conditions. The time offset field can be configured differently for different scenarios, allowing the system to optimize between beam tracking accuracy and activation speed according to actual needs.
Data Source
AI summary
A terminal according to one aspect of the present disclosure includes a receiving section that receives a Medium Access Control control element (MAC Control Element (CE)) including a field indicating a time period from a given timing until activation of a transmission configuration indication state (TCI state), and a control section that controls the activation of the TCI state based on the MAC CE. According to one aspect of the present disclosure, it is possible to implement suitable maintenance of communication quality.