Terminal Power Control for BSC Signal Reliability

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Solution Overview

Problem

The existing BSC systems face challenges in implementing effective power control between network-side devices, terminals, and BSC devices, particularly after new terminals are introduced.

Innovation Solution

A power control method and apparatus that allow terminals to determine and transmit signals using a first transmit power, and network-side devices to transmit network indication information to terminals to aid in determining this power, ensuring efficient communication in BSC systems.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If the terminal transmits the first signal for BSC communication, then the BSC device can receive the signal, but the power consumption increases

Engineering Contradiction:

Improvesignal reception reliabilityVSAvoidterminal power consumption

Core Design Contradiction:

ReliabilityVSUse of energy by moving object

Solution Approach 1:

The terminal adjusts the transmit power parameter dynamically based on path loss measurements and network indication information. The transmit power is calculated using the formula: first transmit power = second transmit power + path loss + power offset, where the power offset is determined by network indication information. This parameter adjustment ensures reliable signal reception while optimizing power consumption.

Inventive Principle:

Principle #35Parameter changes

2Ease of operation

If the terminal uses fixed transmit power for BSC signals, then the implementation is simple, but the communication quality deteriorates in varying channel conditions

Engineering Contradiction:

Improvepower control implementation simplicityVSAvoidcommunication quality

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

The power control method transitions from fixed power to dynamic power adjustment. The terminal measures path loss of downlink signals, receives network indication information, and calculates the first transmit power dynamically. This dynamic adjustment adapts to varying channel conditions while maintaining a relatively simple implementation through standardized power calculation formulas.

Inventive Principle:

Principle #15Dynamics

3Device complexity

If the terminal determines transmit power independently, then the network control overhead is reduced, but the power control precision deteriorates

Engineering Contradiction:

Improvenetwork control overheadVSAvoidpower control precision

Core Design Contradiction:

Device complexityVSMeasurement precision

Solution Approach 1:

The network indication information acts as an intermediary that guides the terminal's independent power determination. The network provides indication information (such as power offset values) that the terminal uses to calculate the first transmit power. This intermediary approach maintains network control precision while reducing overhead compared to full network-controlled power assignment.

Inventive Principle:

Principle #24Intermediary (Mediator)

Data Source

PatentUS20250048282A1Power Control Method, Terminal, and Network-Side Device

Publication Date: 2025.02.06 VIVO MOBILE COMM CO LTD

AI summary

A power control method includes determining, by a terminal, a first transmit power of a first signal, where the first signal is a signal used for BSC; and transmitting, by the terminal, the first signal using the first transmit power.