Network Entity DRX DTX Timing Coordination
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Solution Overview
Problem
Current wireless communication systems face inefficiencies in managing discontinuous reception (DRX) and discontinuous transmission (DTX) timing, leading to increased energy consumption and interference between network entities, particularly in 5G and New Radio (NR) networks.
Innovation Solution
The method involves transmitting a message indicating DRX or DTX timing between network entities to adjust communication scheduling and measurement configurations, allowing for the initiation of DRX or DTX modes, thereby reducing power consumption and minimizing interference by coordinating inactivity periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If network entities continuously monitor and transmit communications, then communication reliability is improved, but energy consumption increases
Solution Approach 1:
The patent implements discontinuous reception (DRX) and discontinuous transmission (DTX) mechanisms where network entities switch between active and sleep states periodically. During active periods, full monitoring and transmission occur to ensure reliability. During sleep periods, monitoring and transmission are reduced or suspended to conserve energy. The network entity transmits messages indicating DRX/DTX timing to coordinating entities, enabling synchronized periodic operation across the network.
2Reliability
If network entities operate continuously, then communication performance is maintained, but interference between network entities increases
Solution Approach 1:
The patent employs periodic DRX/DTX operation where network entities coordinate their active and sleep periods. By synchronizing timing through message exchange, interfering entities can be in sleep states when other entities are transmitting, thereby reducing mutual interference. The periodic nature ensures that when entities become active, they do so in a coordinated manner that minimizes collision and interference.
Solution Approach 2:
The patent implements a feedback mechanism where network entities transmit messages indicating their DRX/DTX timing to coordinating entities. This feedback allows coordinating entities to adjust their operation to avoid interference. The coordinating entity receives this timing information and can schedule transmissions or adjust monitoring accordingly, creating a closed-loop system that actively manages interference through information exchange.
3Device complexity
If DRX/DTX timing is not coordinated, then device complexity is reduced, but interference and energy efficiency worsen
Solution Approach 1:
The patent introduces a message-based coordination mechanism where network entities transmit DRX/DTX timing information to coordinating entities. This intermediary communication layer enables centralized or distributed coordination without requiring complex direct peer-to-peer synchronization between all entities. The coordinating entity acts as an intermediary that collects timing information and distributes coordinated schedules, simplifying the overall system architecture while achieving energy efficiency through synchronized DRX/DTX operation.
Data Source
AI summary
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network entity may transmit a first message to a neighboring second network entity, where the first message indicates one or more of a discontinuous reception (DRX) timing of the first network entity or a discontinuous transmission (DTX) timing of the first network entity. The first network entity may start at least one of a DRX mode according to the DRX timing or a DTX mode according to the DTX timing. The second network entity may adjust communication scheduling or a measurement configuration. Numerous other aspects are described.