Unified Uplink Power Control Reset for Large-Scale MIMO
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
In large-scale MIMO scenarios, the existing independent reset mechanism for uplink power control leads to complexity and frequent resets when UE is configured with multiple antenna port groups and frequently switches between them.
Innovation Solution
A method where the UE receives first information to trigger an operation, followed by K pieces of target information, and transmits a wireless signal with a power value determined by the sum of K power offset values, which are irrelevant to previous information, thereby avoiding frequent resets and simplifying power control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If independent accumulation reset is implemented for each antenna port group, then power control accuracy for each beam is improved, but device complexity and reset frequency increase significantly
Solution Approach 1:
The patent merges the accumulation reset control for multiple antenna port groups into a unified mechanism. Instead of implementing independent reset for each antenna port group, the base station uses a single accumulation reset indicator that applies to all configured antenna port groups, thereby reducing control complexity while maintaining power control effectiveness across multiple beams.
Solution Approach 2:
The accumulation reset indicator is designed to serve multiple antenna port groups simultaneously. A single indicator value can trigger accumulation reset for one or multiple antenna port groups based on their configuration, making the control mechanism universal and applicable to various beam management scenarios without requiring separate control signals for each port group.
2Measurement precision
If independent accumulation reset is implemented for each antenna port group, then beam-specific power control is improved, but reset frequency increases leading to instability
Solution Approach 1:
By combining the reset control into a unified mechanism, the patent reduces the frequency of accumulation resets. The base station can selectively trigger resets for specific antenna port groups only when necessary, rather than forcing resets on all port groups independently, thereby stabilizing the uplink transmitting power while still maintaining beam-specific control where needed.
3Adaptability or versatility
If UE frequently switches between multiple antenna port groups, then adaptability to different beam directions is improved, but power control complexity increases
Solution Approach 1:
The unified accumulation reset indicator serves multiple antenna port groups simultaneously, allowing the UE to switch between beams without encountering separate reset mechanisms for each port group. This universal control approach simplifies the power control process during beam switching, reducing the complexity burden that would otherwise arise from managing multiple independent reset controls.
Data Source
AI summary
A method and device for power adjustment in a user equipment and a base station are disclosed in the present disclosure. The user equipment receives first information which is used to trigger a first operation, and then receives K piece(s) of target information and transmits a first wireless signal. A transmission power value of the first wireless signal is a first power value; the first power value is irrelevant to all piece(s) of target information received prior to triggering the first operation. The K piece(s) of target information is(are) received after triggering the first operation. The sum of K power offset value(s) is used to determine the first power value. The K power offset value(s) are respectively indicated by the K piece(s) of target information.