Uplink Channel Frequency Hopping Power Consistency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current 5G wireless communication systems face challenges in efficiently transmitting uplink channels with frequency hopping, particularly in maintaining consistent power and phase over multiple slots, which affects transmission reliability and scheduling flexibility.
Innovation Solution
The implementation of a system where user equipment (UE) and base stations (BS) receive information to transmit or receive channels with the same power over different slots, determining a specific time window and power for transmission or reception, allowing for frequency hopping patterns to be configured for physical uplink shared channels (PUSCH) and physical uplink control channels (PUCCH) to enhance reliability and scheduling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If frequency hopping is implemented for uplink channel transmission, then frequency diversity and scheduling flexibility are improved, but maintaining consistent power and phase across multiple slots becomes difficult
Solution Approach 1:
The base station configures a time window parameter in advance that defines the duration over which the UE must maintain consistent power and phase for frequency hopping transmissions. This preliminary configuration allows the UE to prepare and execute frequency hopping while maintaining power consistency within the specified time window, resolving the contradiction between scheduling flexibility and power consistency.
Solution Approach 2:
The patent introduces a time window parameter that changes the operational constraints for the UE. Within this time window, the UE maintains constant power and phase for frequency hopping transmissions. By adjusting this parameter, the system achieves both frequency diversity through hopping and power consistency within the constrained time period, balancing scheduling flexibility with reliability.
2Reliability
If the time window for power consistency is extended, then transmission reliability is improved, but scheduling flexibility and frequency resource allocation efficiency decrease
Solution Approach 1:
The time window parameter is made dynamic and can be adjusted by the base station based on transmission conditions. The system can extend the time window when reliability is critical and shorten it when scheduling flexibility is needed. This dynamic adjustment allows the system to optimize between transmission reliability and scheduling efficiency according to real-time requirements.
Solution Approach 2:
The base station determines and signals the time window parameter in advance before the frequency hopping transmission begins. This preliminary action allows the UE to understand the power consistency requirements ahead of time, enabling efficient scheduling and resource allocation while maintaining the specified reliability level within the configured time window.
Data Source
AI summary
Apparatuses and methods for transmission of uplink channels with frequency hopping. A method of a user equipment includes receiving first information indicating use of a same power for a transmission of a channel over different slots and second information indicating a first number of slots for the transmission of the channel. The method includes determining a first time window for the transmission of the channel based on the first and second information and a first power for the transmission of the channel over the first time window. The method further includes transmitting the channel over the first time window with the first power.