Base Station Power Mode Detection for Adaptive UE Transmit Power
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Solution Overview
Problem
Existing wireless communication systems face challenges in distinguishing and adapting to different power modes of base stations, leading to inefficient resource allocation and potential interference.
Innovation Solution
The method involves determining the power mode of a base station using a CORESET configuration index or the frequency position of a synchronization signal block (SSB), and adjusting the transmit power of user equipment (UE) accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the base station operates in high power mode to provide extensive coverage, then the coverage area is improved, but the energy consumption increases and causes interference to other cells
Solution Approach 1:
The base station dynamically switches between full power mode and reduced power mode based on the presence of UEs in coverage holes. The power mode is not static but adapts to changing network conditions, allowing the base station to provide extensive coverage when needed while conserving energy when not required
Solution Approach 2:
The invention changes the power parameter of the base station between different operational states. By adjusting the transmit power from high to reduced levels, the system optimizes the balance between coverage area and energy consumption, directly addressing the technical contradiction
2Use of energy by stationary object
If the base station operates in reduced power mode to conserve energy, then the energy consumption is reduced, but the coverage area decreases and creates coverage holes
Solution Approach 1:
A neighboring base station acts as an intermediary to fill coverage holes created by the reduced power mode base station. The neighboring base station transmits fill-in reference signals that extend coverage into the holes, allowing the primary base station to operate in energy-saving mode without creating unacceptable coverage gaps
Solution Approach 2:
The neighboring base station serves multiple functions: it provides normal coverage for its own UEs and simultaneously fills coverage holes for the reduced power mode base station. This multi-functionality allows the system to achieve energy savings while maintaining overall coverage
3Reliability
If the UE transmits at high power to ensure reliable communication, then the communication reliability is improved, but the interference to other cells increases
Solution Approach 1:
The system uses feedback mechanisms where UEs report channel conditions and the base station adjusts power allocation accordingly. This feedback loop allows the system to maintain communication reliability by transmitting at high power only when necessary, reducing interference in other scenarios
4Object-generated harmful factors
If the UE transmits at low power to reduce interference, then the interference is reduced, but the communication reliability decreases
Solution Approach 1:
The transmit power parameter of the UE is dynamically adjusted based on the base station's power mode and channel conditions. The system changes power levels to optimize the balance between interference reduction and maintaining communication reliability
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a user equipment may determine a power mode of a base station based at least in part on a control resource set (e.g., CORESET0) configuration index received in a master information block from the base station and transmit communications to the base station with a transmit power that is based at least in part on the power mode of the base station. Numerous other aspects are provided.