Uplink Channel DMRS for Multi-Slot Phase and Power Continuity
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Solution Overview
Problem
The existing mobile communication systems face challenges in efficiently performing wireless signal transmission and reception due to resource shortages and high-speed service demands, particularly in the context of 5G networks, where maintaining phase continuity and power consistency in uplink channel transmissions is crucial for effective data processing.
Innovation Solution
A user equipment (UE) is configured to transmit an uplink channel on a slot set with a demodulation reference signal (DMRS) to maintain phase continuity and power consistency over multiple consecutive slots, determining the time window based on the number of slots including the transmission or the maximum number of slots the UE can maintain these conditions, depending on UE capability or base station configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink channel transmission is performed over multiple consecutive slots to enhance data processing efficiency, then productivity is improved, but maintaining phase continuity and power consistency becomes more difficult
Solution Approach 1:
The patent applies preliminary action by configuring the UE to transmit DMRS signals at predetermined positions before and after the uplink channel transmission slots. This preliminary placement of reference signals enables the base station to estimate channel characteristics and maintain phase continuity and power consistency throughout the multi-slot transmission sequence, thereby resolving the contradiction between extended transmission duration and signal stability.
Solution Approach 2:
The patent implements feedback mechanisms where the base station receives DMRS signals from the UE and uses these signals to continuously monitor and adjust channel conditions. This feedback loop allows real-time compensation for phase and power variations across multiple slots, enabling the system to maintain reliability while achieving high productivity through extended transmission.
2Productivity
If the time window for maintaining phase continuity is extended, then productivity is improved, but device complexity increases due to stricter requirements
Solution Approach 1:
The patent applies preliminary action by pre-configuring the UE with knowledge of the time window duration and DMRS transmission patterns before actual transmission begins. This allows the UE to automatically position DMRS signals at the correct time slots without complex real-time calculations, reducing device complexity while enabling extended time windows for high productivity.
Solution Approach 2:
The patent utilizes parameter changes by allowing flexible configuration of the time window length and DMRS positioning based on transmission conditions. The system can adapt the time window parameter dynamically, enabling extended transmission for high productivity scenarios while keeping device complexity manageable through parameterized rather than fixed complex requirements.
Data Source
AI summary
The present invention relates to a method used in a wireless communication system and an apparatus therefor, comprising the steps of: transmitting an uplink channel on a slot set; and transmitting a DMRS for transmission of the uplink channel on the slot set, wherein the DMRS is transmitted to maintain phase continuity and power consistency over a plurality of consecutive slots in a time window, and, when the length of the time window is not configured by a base station, the time window is determined according to the proposal of the present invention.