Consolidating Power Control Commands in Single Serving Cell
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In mobile communications systems, user equipment needs to detect multiple power control commands across various serving cells, leading to increased blind detection and complexity, as existing methods send commands in the common search space of each cell, requiring extensive detection across multiple cells.
Innovation Solution
A method where the base station sends power control commands for multiple serving cells in a single serving cell, reducing the detection space for user equipment by generating a correspondence between power control commands and serving cells, allowing commands to be sent in different subframes or timeslots, thereby minimizing blind detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the base station sends power control commands in the common search space of each serving cell, then each serving cell can independently control PUCCH transmit power, but the quantity of blind detection increases and detection complexity increases
Solution Approach 1:
The patent merges power control commands for multiple serving cells into a single downlink control information message transmitted in one serving cell. Instead of sending separate commands in each cell's common search space, the base station consolidates all power control commands into one unified message that the user equipment detects in a single cell, thereby reducing blind detection while maintaining control accuracy for all cells
Solution Approach 2:
The downlink control information message serves multiple functions simultaneously: it carries power control commands for multiple different serving cells within a single message structure. This multi-functional approach allows one message to replace what would traditionally require multiple separate messages across multiple cells
2Adaptability or versatility
If the base station sends power control commands in the common search space of each serving cell, then each cell's power control can be independently managed, but the quantity of blind detection increases
Solution Approach 1:
The patent combines power control commands for multiple serving cells into a single transmitted message. By merging what would be multiple separate detection operations into one unified detection event in a single serving cell, the user equipment reduces the total time required for blind detection while the message structure maintains the flexibility to control power for multiple cells independently
3Adaptability or versatility
If the base station sends power control commands in the common search space of each serving cell, then comprehensive power control coverage is achieved, but the common search space size increases and detection complexity increases
Solution Approach 1:
The patent merges power control commands for multiple serving cells into a single downlink control information message transmitted in one serving cell. This consolidation reduces the total search space the user equipment must monitor from multiple cells to a single cell, while the message structure maintains comprehensive power control coverage for all serving cells through multi-functional command fields
Data Source
Figure 1~3
Figure 4~5
Figure 6~8
AI summary
A power control method, a communications system, and a related device are provided, applicable to the field of communications technologies. Abase station sends power control commands of multiple serving cells in one serving cell of user equipment, so that when detecting information sent by the base station to the user equipment, the user equipment performs detection in only one serving cell of the user equipment, space for the detection is reduced, and a quantity of blind detection is also reduced.