Uplink Beam Selection via Transmit Power Capability
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Solution Overview
Problem
Current wireless communication systems face challenges in efficiently selecting uplink beams, leading to interference issues and suboptimal communication performance.
Innovation Solution
The method involves transmitting reference signals to wireless nodes, determining their transmit power capabilities, and configuring transmission parameters based on these capabilities to select appropriate uplink beams, thereby minimizing interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If uplink beam selection is performed without considering transmit power capability, then beam selection process is simple, but interference between adjacent nodes increases and communication performance deteriorates
Solution Approach 1:
The system performs preliminary actions by having the first wireless node transmit reference signals before actual communication. The second wireless node measures these reference signals and determines transmit power capability in advance. This preliminary measurement and determination process enables the system to select appropriate uplink beams based on actual power capabilities, reducing interference without requiring complex real-time calculations during data transmission.
Solution Approach 2:
The system implements feedback mechanisms where the second wireless node provides feedback information about the first wireless node's transmit power capability to the network. This feedback enables the network to configure transmission parameters and select optimal uplink beams that avoid interference with adjacent nodes, while the feedback loop continues to optimize beam selection based on actual measured power levels.
2Measurement precision
If transmit power capability is determined through reference signal transmission, then uplink beam selection accuracy improves, but additional reference signal transmission time is required
Solution Approach 1:
The reference signals transmitted by the first wireless node serve multiple functions: they enable the second wireless node to measure transmit power capability, and they also provide information about the communication channel conditions. This multi-functionality reduces the need for separate dedicated measurement signals, thereby minimizing the time overhead while maintaining accurate power capability determination.
Solution Approach 2:
The system changes the parameter of reference signal transmission by utilizing existing downlink reference signals in an uplink context. Instead of requiring separate uplink reference signal transmissions for power measurement, the system repurposes downlink reference signals to carry information about transmit power capability, effectively changing the temporal and functional parameters of signal usage to reduce time loss.
3Productivity
If transmission parameters are configured based on transmit power capability, then communication efficiency improves, but configuration complexity increases
Solution Approach 1:
The system implements dynamic transmission parameter configuration where the network adjusts beam selection and transmission parameters based on the determined transmit power capability. The configuration is not static but adapts to the actual power levels measured during reference signal transmission. This dynamic approach optimizes communication efficiency by matching transmission parameters to actual capabilities while the automation of the measurement process keeps the complexity manageable.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless communication device may transmit a set of reference signals to a first wireless node; receive information identifying a transmit power capability of the first wireless node based at least in part on transmitting the set of reference signals; and configure one or more transmission parameters for a first link with the first wireless node or a second link with a second wireless node based at least in part on the transmit power capability of the first wireless node. Numerous other aspects are provided.