Uplink Sidelink Power Allocation Shared Carrier
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Solution Overview
Problem
In new radio (NR) systems, efficiently transmitting both uplink and sidelink signals on a shared carrier is challenging due to the need to determine optimal transmit powers based on various parameters, such as transmit links, system parameters, waveforms, and bandwidths, to ensure correct prioritization and utilization of terminal device capabilities.
Innovation Solution
A communication method and apparatus that determine the transmit powers for uplink and sidelink signals based on priorities, considering factors like transmit links, system parameters, waveforms, and inclusion relationships among bandwidths of different bandwidth parts (BWP) to support simultaneous transmission on a shared carrier, ensuring that signals with higher priorities are transmitted effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the terminal device determines transmit power based on multiple parameters (transmit link, system parameter, waveform, bandwidth inclusion relationship), then the transmission capability utilization is improved, but the device complexity increases
Solution Approach 1:
The patent segments the power determination process into distinct evaluation stages: first evaluating transmit link support, then system parameter compatibility, followed by waveform compatibility, and finally bandwidth inclusion relationships. This segmented approach allows the terminal to systematically assess multiple parameters without overwhelming complexity, improving transmission capability utilization while managing device complexity through structured evaluation.
Solution Approach 2:
The patent implements dynamic power determination by allowing the terminal to adaptively select transmit powers for uplink and sidelink signals based on real-time evaluation of multiple parameters. The terminal dynamically adjusts power allocation according to the specific combination of transmit link capabilities, system parameters, waveforms, and bandwidth relationships, thereby optimizing transmission capability utilization while the systematic evaluation framework manages the complexity through dynamic adaptation rather than static rules.
2Productivity
If the terminal device supports simultaneous sending of uplink and sidelink signals, then the communication efficiency is improved, but the difficulty of determining optimal transmit powers increases
Solution Approach 1:
The patent applies preliminary action by requiring the terminal to evaluate and determine support for simultaneous uplink and sidelink transmission before actual power determination. The terminal预先 assesses transmit link capabilities, system parameter compatibility, waveform compatibility, and bandwidth inclusion relationships. This preliminary evaluation establishes a foundation that simplifies the subsequent power determination process, enabling efficient simultaneous transmission while reducing the difficulty of power optimization through pre-established compatibility criteria.
Solution Approach 2:
The patent utilizes parameter changes by evaluating multiple variables (transmit link, system parameter, waveform, bandwidth) and using their combinations to determine power allocation. The terminal changes and compares different parameter configurations to identify suitable simultaneous transmission scenarios, thereby improving communication efficiency while the systematic parameter evaluation framework manages the determination difficulty through structured comparison and selection.
3Manufacturing precision
If the terminal device evaluates multiple parameters to determine transmission support, then the transmission capability matching is improved, but the loss of time in power determination increases
Solution Approach 1:
The patent segments the evaluation process into distinct, manageable stages (transmit link evaluation, system parameter evaluation, waveform evaluation, bandwidth inclusion evaluation). This segmentation allows the terminal to systematically assess each parameter category separately, improving capability matching precision through thorough evaluation while reducing determination time by avoiding redundant checks across all parameters simultaneously. Each segment can be processed independently and efficiently.
Solution Approach 2:
The patent implements preliminary evaluation of parameter compatibility before final power determination. By预先 assessing transmit link support, system parameter compatibility, waveform compatibility, and bandwidth relationships, the terminal establishes a filtered set of viable transmission configurations. This preliminary action reduces the time required for final power determination by eliminating incompatible options early, thereby improving capability matching precision without excessive time loss.
Data Source
AI summary
Disclosed are a communication method and an apparatus. The method includes: when a first terminal device supports sending of an uplink signal and a sidelink signal in a first time unit on a first carrier, determining, by the first terminal device based on priorities of the uplink signal and the sidelink signal, a first transmit power of the uplink signal and a second transmit power of the sidelink signal; and sending, by the first terminal device, the uplink signal based on the first transmit power, and/or sending the sidelink signal based on the second transmit power.