Terminal Apparatus Blind Detection Capability Signaling
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Solution Overview
Problem
Current terminal apparatuses in LTE and NR communication systems face inefficiencies in blind detection of PDCCH, particularly in managing multiple control resource sets within a prescribed duration, which affects communication efficiency.
Innovation Solution
The terminal apparatus is equipped with a transmitter to send capability information, including the maximum number of blind detections that can be performed in a prescribed duration, per unit time, based on control resource set configuration, and the number of control resource sets that can be simultaneously detected, enabling efficient blind detection across multiple search spaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal apparatus performs blind detection on multiple control resource sets in parallel, then the detection capability is improved, but the processing complexity and resource consumption increase
Solution Approach 1:
The patent segments the control resource sets into different groups or categories, allowing the terminal to perform blind detection on multiple control resource sets in a structured manner. This segmentation enables the terminal to manage the complexity by dividing the detection process into manageable segments rather than handling all control resource sets uniformly, thus improving detection capability while controlling processing complexity.
2Productivity
If the terminal apparatus increases the number of blind detections in a prescribed duration, then the communication efficiency is improved, but the energy consumption and processing load increase
Solution Approach 1:
The patent implements periodic action by configuring blind detection to occur at specific intervals or periods rather than continuously. The terminal apparatus performs blind detection on control resource sets according to predetermined periodic patterns, which allows it to achieve adequate detection coverage for improved communication efficiency while reducing overall energy consumption and processing load compared to continuous detection.
3Adaptability or versatility
If the terminal apparatus supports a large number of control resource sets, then the adaptability is improved, but the device complexity and memory requirements increase
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting configuration parameters related to control resource sets based on network conditions and terminal capabilities. The base station can modify parameters such as the number of control resource sets, their locations, and detection priorities, allowing the system to maintain high adaptability while managing device complexity through flexible parameter adjustment rather than requiring fixed support for a large number of control resource sets.
Data Source
AI summary
A terminal apparatus includes a transmitter configured to transmit capability information of the terminal apparatus, and a receiver configured to perform blind detection of a PDCCH from a search space in a control resource set, wherein in a case that a capability of blind detection is supported, the blind detection detecting the PDCCH from search spaces in control resource sets the number of which is greater than a prescribed number in a prescribed duration, the transmitter transmits, as the capability information of the terminal apparatus, at least two of pieces of information including (a) a maximum number of blind detections that can be performed in the prescribed duration, (b) a maximum number of blind detections in a unit time, (c) a maximum number of blind detections based on configuration for the control resource set, and (d) a maximum number of the control resource sets for which blind detections can be simultaneously performed.