DRX Group Selection for Scheduling Request Transmission
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Solution Overview
Problem
In wireless communication systems, when a terminal device is configured with two Discontinuous Reception (DRX) groups, it is unclear which DRX group to enter the DRX Active Time when transmitting a Scheduling Request (SR) on a Physical Uplink Control Channel (PUCCH) of a serving cell, leading to ambiguity and potential inefficiencies in power management and data transmission.
Innovation Solution
A method and system that allow a terminal device to determine which DRX group to enter the DRX Active Time based on either the first serving cell's configuration or indication information received from the network device, enabling the terminal device to decide whether to enter DRX Active Time on one or both DRX groups, thereby improving power consumption and scheduling flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a terminal device is configured with two DRX groups, then the device can improve power management flexibility and scheduling adaptability, but it creates ambiguity about which DRX group to enter when transmitting SR on PUCCH
Solution Approach 1:
The patent applies local quality by associating each serving cell with a specific DRX group through configuration parameters. When an SR is transmitted on a PUCCH of a configured serving cell, the terminal device determines to enter DRX Active Time on the DRX group associated with that serving cell. This localized association resolves the ambiguity by making the DRX group selection dependent on the specific serving cell used for SR transmission, thereby maintaining power management flexibility while improving operational clarity.
2Reliability
If the terminal device enters DRX Active Time on both DRX groups when transmitting SR, then data transmission reliability is improved, but power consumption increases
Solution Approach 1:
The patent implements dynamics by making the DRX group selection adaptive based on the serving cell configuration. The terminal device dynamically determines which DRX group to enter based on the association between the serving cell used for SR transmission and the configured DRX groups. This dynamic approach allows the system to optimize between reliability and power consumption by selecting the appropriate DRX group rather than always activating both, thereby improving power efficiency while maintaining necessary transmission reliability.
3Use of energy by moving object
If the terminal device enters DRX Active Time on one specific DRX group when transmitting SR, then power consumption is reduced, but scheduling flexibility is limited
Solution Approach 1:
The patent applies universality by configuring multiple serving cells with different associations to different DRX groups. The terminal device can transmit SRs on different serving cells depending on the data transmission requirements, and each serving cell association enables access to different DRX groups. This multi-functional configuration allows the system to achieve both power savings (by selecting appropriate DRX groups) and scheduling flexibility (by having multiple serving cell options with different DRX group associations).
Data Source
AI summary
The present disclosure provides a discontinuous reception method. The method includes: determining, by a terminal device when a Media Access Control (MAC) entity of the terminal device includes two Discontinuous Reception (DRX) groups and the terminal device transmits a Scheduling Request (SR) on a Physical Uplink Control Channel (PUCCH) of a first serving cell, at least one DRX group to enter DRX Active Time. The present disclosure also provides another discontinuous reception method, an electronic device, and a storage medium.