Synchronization Signal Scheduling With DRS-Based Wake-Up Offsets
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Solution Overview
Problem
Existing wireless communication systems inefficiently schedule synchronization signal bursts, leading to temporal gaps that decrease resource utilization and increase power consumption.
Innovation Solution
UEs determine uplink wake-up signal resources based on a variable offset associated with a discovery reference signal identifier, reducing temporal gaps and optimizing communication resource use.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If synchronization signals are scheduled with fixed temporal gaps, then network nodes can maintain simple scheduling mechanisms, but resource utilization efficiency decreases and power consumption increases
Solution Approach 1:
The patent applies dynamics by transitioning from fixed temporal gaps to variable offsets in synchronization signal scheduling. The variable offset is determined based on the discovery signal identifier, allowing the time gap to dynamically adapt to different signal positions within the burst. This dynamic adjustment eliminates unnecessary temporal gaps while maintaining network node simplicity, thereby improving resource utilization efficiency without significantly increasing power consumption.
Solution Approach 2:
The patent changes the scheduling parameter from a fixed time gap to a variable offset that depends on the discovery signal identifier. By modifying this key parameter dynamically based on the signal index, the system optimizes the timing of synchronization signals within the burst, reducing wasted time resources and improving overall productivity while keeping energy consumption manageable.
2Productivity
If fixed temporal gaps are used in synchronization signal bursts, then implementation is simple, but communication resource efficiency decreases
Solution Approach 1:
The patent modifies the scheduling parameter from a static fixed gap to a dynamic variable offset based on the discovery signal identifier. This parameter change enables more efficient use of communication resources by eliminating unnecessary gaps, while the complexity increase is minimal since the offset calculation simply depends on the signal index, which is already being transmitted.
3Use of energy by stationary object
If synchronization signals are transmitted continuously, then resource utilization is maximized, but network node power consumption increases
Solution Approach 1:
The patent implements periodic action by organizing synchronization signals into bursts with structured timing. Instead of continuous transmission, signals are transmitted in periodic bursts with optimized internal spacing. The variable offset ensures that signals within a burst are efficiently spaced, while the burst structure itself allows for power-saving intervals between bursts, achieving a balance between resource utilization and energy consumption.
Data Source
AI summary
Methods, systems, and devices for wireless communications are described. A user equipment (UE) may receive a synchronization signal for a cell. The synchronization signal may include a discovery reference signal identifier (DRSIdx) corresponding to an index of the synchronization signal within a burst of synchronization signals. The UE may transmit a wake up signal (WUS) via resources of the cell that are determined based on the DRSIdx. The UE may receive a PBCH of the cell based on transmitting the WUS.