Shared-Spectrum Downlink Reception With Cell DTX/DRX Timing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The increasing demand for data throughput and communication capacity in wireless networks has led to a need for enhanced mobile broadband communication, massive machine type communication, and ultra-reliable and low-latency communication, while also requiring network energy conservation and power saving for user equipment and base stations.
Innovation Solution
Implementing methods and procedures for cell discontinuous transmission (DTX) and discontinuous reception (DRX) on a shared spectrum, including configurations for active durations and periodicities, to optimize energy usage in downlink and uplink signal transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous transmission and reception is performed to ensure reliable communication, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
The patent implements cell discontinuous transmission (DTX) and discontinuous reception (DRX) mechanisms that periodically activate and deactivate transmission and reception operations. The base station transmits wake-up signals at specific intervals, and user equipment enters sleep modes between active periods, thereby reducing energy consumption while maintaining communication reliability through periodic monitoring and transmission.
2Productivity
If network resources are continuously allocated to support increasing data throughput, then data capacity is improved, but network energy consumption increases
Solution Approach 1:
The patent introduces dynamic resource allocation through cell DTX/DRX configurations where transmission and reception resources are activated only when needed. The base station dynamically adjusts its transmission behavior based on traffic conditions, entering low-power states during periods of reduced activity while maintaining the capability to quickly resume full-capacity transmission when data throughput demands increase.
3Reliability
If user equipment continuously monitors downlink signals to maintain connection, then connection reliability is improved, but device power consumption increases
Solution Approach 1:
The patent implements discontinuous reception (DRX) where user equipment periodically wakes up to monitor downlink control channels and then enters sleep mode. The UE monitors wake-up signals from the base station at configured intervals, maintaining connection reliability through periodic monitoring while significantly reducing power consumption by keeping the receiver off during non-active periods.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
This UE may: receive a cell DTX configuration for a cell on a shared spectrum, wherein the cell DTX configuration includes information about an active duration of a cell DTX cycle, information about a periodicity of the cell DTX cycle, and information about a starting time point of the cell DTX cycle; determine an active period of the cell DTX cycle on the basis of the cell DRX configuration; receive information about a starting time point of an actual active period within the periodicity of the cell DTX cycle. wherein the starting time point of the actual active period is within the active period; and perform downlink reception on the cell during the actual active period.