Transceiver PDCCH Sleep Timer for Uplink Scheduling
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Solution Overview
Problem
Existing communication systems face inefficiencies in power consumption and scheduling requests, particularly in 5G NR systems, due to unnecessary monitoring of the physical downlink control channel (PDCCH) after transmitting a scheduling request, leading to increased power consumption when no immediate uplink grant is received.
Innovation Solution
Implementing a monitoring sleeping timer after transmitting a scheduling request on the physical uplink control channel (PUCCH), which prevents monitoring of the PDCCH until the timer expires, and then resuming PDCCH monitoring for resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the transceiver continuously monitors the PDCCH after transmitting a scheduling request, then resource allocation can be received promptly, but power consumption increases unnecessarily
Solution Approach 1:
The patent applies dynamics by making the PDCCH monitoring behavior adaptive rather than static. The transceiver dynamically adjusts its monitoring state based on the expiry of the monitoring sleeping timer, transitioning between active monitoring and sleeping states. This dynamic adjustment allows the system to optimize power consumption while ensuring resource allocation is received when needed, resolving the contradiction between energy efficiency and reliability.
Solution Approach 2:
The patent implements preliminary action by initiating the monitoring sleeping timer immediately after the scheduling request is transmitted. This timer is set in advance to expire at an appropriate time, allowing the transceiver to proactively enter a low-power state before actually needing to monitor for resource allocation. This preliminary timing mechanism ensures that the transceiver wakes up just in time to receive resource allocation while minimizing unnecessary monitoring periods.
2Use of energy by moving object
If the transceiver stops monitoring the PDCCH to save power, then energy consumption is reduced, but resource allocation may be delayed
Solution Approach 1:
The monitoring sleeping timer is configured in advance with an expiration time that balances power savings and resource allocation timing. By setting this timer preliminarily after the scheduling request, the system ensures the transceiver wakes up at the optimal moment to receive resource allocation, preventing both excessive power consumption and unnecessary delays. This preliminary timing configuration resolves the contradiction between energy efficiency and time loss.
Solution Approach 2:
The system uses feedback from the network's resource allocation decisions to optimize the monitoring sleeping timer configuration. The network can indicate timing information in resource allocation messages, allowing the transceiver to adjust future timer values based on actual scheduling patterns. This feedback mechanism enables the system to learn and adapt, minimizing both power consumption and resource allocation delay over time.
Data Source
AI summary
The present disclosure provides a transceiver device and a scheduling device, and communication methods for transceiver device and scheduling device. The transceiver device comprises a transceiver, which, in operation, transmits a scheduling request for scheduling data over a physical uplink control channel, PUCCH; and circuitry, which, in operation, initiates a monitoring sleeping timer after the transceiver transmitted the scheduling request, wherein the transceiver, in operation, does not monitor a physical downlink control channel, PDCCH, while the monitoring sleeping timer is running, and starts monitoring the PDCCH for resource allocation for the scheduling data when the monitoring sleeping timer has expired.