SDT Response Timing with Cell DTX/DRX Paging
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Solution Overview
Problem
User equipment devices in radio resource control inactive or idle modes often fail to respond to paging messages with mobile terminated small data transmission indications during cell discontinuous reception or transmission non-active periods, resulting in missed responses due to network inactivity.
Innovation Solution
The user equipment is equipped with the capability to receive paging information containing cell discontinuous operation details, allowing it to determine the optimal time to transmit a response message using a small data transmission procedure, ensuring synchronization with the network's active periods.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the cell operates with discontinuous reception and transmission to save energy, then energy consumption is reduced, but the user equipment cannot respond to paging messages during non-active periods
Solution Approach 1:
The network node provides cell discontinuous operation information to the user equipment in advance through paging information. This allows the user equipment to prepare for and synchronize its response timing with the network's active periods, ensuring reliable communication while maintaining energy savings from discontinuous operation.
2Reliability
If the user equipment transmits response messages during cell discontinuous operation periods, then communication reliability is improved, but the network cannot receive the response during non-active periods
Solution Approach 1:
The system dynamically synchronizes the user equipment's response transmission timing with the network's active periods based on provided cell discontinuous operation information. This dynamic timing adjustment ensures the network receives responses during active periods while maintaining energy efficiency through discontinuous operation during non-active periods.
3Reliability
If the user equipment waits for network active periods to transmit responses, then the network can receive responses reliably, but the response time is delayed
Solution Approach 1:
The user equipment receives cell discontinuous operation information in advance through paging information, allowing it to pre-calculate optimal response timing. This preliminary information provision enables the user equipment to transmit responses at the earliest possible moment within network active periods, minimizing delay while ensuring reliable reception.
Data Source
AI summary
A method, apparatus, and computer program product are provided for enhancement on cell discontinuous transmission (DTX) operation and discontinuous reception (DRX) operation. In the context of a method, the method includes receiving, from a network node, paging information which contains cell discontinuous operation information, wherein the paging information indicates to the user equipment when to transmit a response message based on the cell discontinuous operation information. The method further includes transmitting, to the network node, the response message using a small data transmission (SDT) procedure based at least on the paging information.