Narrowband Transmission Power Control for Interference Reduction
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Solution Overview
Problem
The coexistence of narrowband and wideband systems in private network trunking communication systems leads to interference and inefficient power usage due to the lack of effective transmission power control in traditional narrowband systems, resulting in reduced system operation and UE standby time.
Innovation Solution
A transmission power control method that acquires path loss parameters in narrowband mode, selects corresponding power adjustment parameters, and compares these with maximum transmission power to determine the optimal power for data transmission, minimizing interference and improving power efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If higher transmission power is used for data transmission in narrowband mode, then data transmission reliability is improved, but interference to other systems increases and system operation is blocked
Solution Approach 1:
The patent dynamically adjusts transmission power parameters based on channel conditions and system state. By changing the power parameter adaptively rather than using fixed high power, the system achieves reliable transmission while controlling interference levels to acceptable ranges that don't block other systems.
Solution Approach 2:
The patent implements a feedback mechanism where transmission power is adjusted based on channel quality indicators and interference measurements. The system continuously monitors transmission effectiveness and interference levels, then modifies power settings accordingly to maintain reliability while preventing harmful interference to coexisting narrowband and wideband systems.
2Reliability
If higher transmission power is used for data transmission in narrowband mode, then data transmission reliability is improved, but system operation is directly blocked
Solution Approach 1:
The patent employs dynamic parameter adjustment where transmission power is modified based on real-time channel conditions and system load. This allows the system to maintain reliable data transmission when needed while reducing power during periods when high power would block system operation, thus balancing reliability with overall system productivity.
Solution Approach 2:
The patent transforms the static high-power transmission approach into a dynamic power control system. Transmission power becomes a variable that adapts to changing channel conditions, traffic requirements, and system state, enabling the system to achieve reliability when necessary while avoiding operation blocking during other conditions.
3Reliability
If transmission power control effectiveness is poor in narrowband system, then UE can transmit data with sufficient power, but unnecessary power consumption occurs and standby time is reduced
Solution Approach 1:
The patent implements dynamic power parameter adjustment based on channel quality and transmission requirements. Instead of using fixed or excessive power levels, the system calculates optimal power parameters that are sufficient for reliable transmission but not excessive, thereby reducing UE power consumption while maintaining data transmission capability.
Solution Approach 2:
The patent applies the principle of using just enough power rather than excessive power. By calculating the minimum necessary transmission power based on channel conditions and quality requirements, the system avoids unnecessary power consumption while ensuring sufficient transmission capability for reliable data communication.
4Reliability
If UE transmits data by unnecessary power due to poor transmission power control, then data transmission can be maintained, but electricity waste occurs and standby time is reduced
Solution Approach 1:
The patent dynamically adjusts transmission power parameters based on actual channel conditions and transmission needs. By changing power parameters adaptively rather than using fixed high power settings, the system maintains data transmission reliability when required while minimizing power consumption during idle or good channel conditions, thus extending UE standby time.
Solution Approach 2:
The patent enables the UE to self-adjust its transmission power based on monitored channel conditions and transmission outcomes. The device autonomously determines appropriate power levels without excessive consumption, balancing transmission maintenance with power conservation to maximize standby duration.
Data Source
AI summary
The present invention discloses a transmission power control method and a user equipment. A power reference value adjusted is compared with a maximum transmission power of a channel in a narrowband mode, and a minimum value between the two is selected as the transmission power in the narrowband mode to avoid data from being transmitted by a higher power in the narrowband mode, so as to effectively reduce the interference to data transmission during coexistence of the narrowband mode and a wideband mode, improve the effectiveness of transmission power control in the narrowband mode, and prolong the standby time of the user equipment to the greatest extent.