Terminal Transmit Power Control Across Multi-Slot Transport Blocks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing communication systems face challenges in controlling the transmit power of terminal devices within an appropriate range to ensure effective data transmission and minimize interference.
Innovation Solution
A method for determining transmit power based on N time domain resources, where N is a positive integer, to control the transmit power of terminal devices, considering factors such as modulation order, target coding rate, and transport block size, ensuring the power is within an appropriate range.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If transmit power is increased to ensure effective data transmission, then data transmission reliability is improved, but interference to other terminal devices increases
Solution Approach 1:
The patent applies parameter changes by dynamically adjusting transmit power based on multiple factors including path loss, reference signal received power, modulation and coding scheme, and time domain resource characteristics. The formula calculates optimal transmit power as: P_TX = min(P_MAX, P_0 + a×PL + 10×log10(M) + Δ_MCS + Δ_TB + f(N)), where each parameter is optimized to achieve reliable transmission while controlling interference. This resolves the contradiction by finding the optimal power level that satisfies both reliability requirements and interference constraints.
2Object-generated harmful factors
If transmit power is controlled to minimize interference, then interference to other devices is reduced, but data transmission reliability may deteriorate
Solution Approach 1:
The patent implements feedback mechanisms by using reference signal received power (RSRP) measurements and path loss estimates to dynamically adjust transmit power. The system continuously monitors channel conditions and adjusts power levels accordingly, ensuring that transmit power is high enough for reliable reception while low enough to minimize interference. This feedback loop resolves the contradiction by adapting power control to actual channel conditions rather than using fixed power levels.
3Manufacturing precision
If transmit power is adjusted based on multiple parameters including modulation order and transport block size, then power control precision is improved, but device complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the power control formula into distinct components: base power offset (P_0), path loss compensation (a×PL), bandwidth adjustment (10×log10(M)), modulation and coding scheme adjustment (Δ_MCS), transport block size adjustment (Δ_TB), and time domain resource adjustment (f(N)). Each segment handles a specific aspect of power control, making the complex overall system more manageable and easier to implement. This segmentation resolves the contradiction by organizing complexity into modular, independent adjustment mechanisms.
Data Source
AI summary
Example transmit power determining methods and apparatus are described. One example method includes determining a first transmit power based on N time domain resources corresponding to a first transport block. The first transport block is sent on the N time domain resources at the first transmit power. The first transmit power is a transmit power of the first transport block on each of the N time domain resources, a size of the N time domain resources is greater than one slot, and N is a positive integer.