Communication Channel Scheduling to Reduce PDCCH Monitoring Power
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Solution Overview
Problem
Existing discontinuous reception (DRX) mechanisms in terminal devices fail to adequately reduce power consumption in network devices, leading to high power consumption in network and terminal devices due to continuous monitoring of physical downlink control channels.
Innovation Solution
Implementing a communication method where terminal devices receive information to skip channel transmission in specified time periods and adjust channel types based on DRX and DTX mechanisms, allowing selective channel transmission in active time periods to reduce power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If continuous channel transmission is performed to meet service requirements, then service quality is improved, but power consumption increases
Solution Approach 1:
The patent implements periodic channel transmission by dividing time into active periods and inactive periods. During active periods, channels are transmitted to meet service requirements; during inactive periods, transmission is suspended to reduce power consumption. This periodic pattern allows the system to balance service quality and energy consumption effectively.
Solution Approach 2:
The patent dynamically adjusts channel transmission based on service requirements and power consumption needs. The network device can flexibly configure active and inactive periods, and selectively transmit different channel types (control channels, data channels, reference signals) based on current service demands, making the transmission system adaptable to varying conditions.
2Adaptability or versatility
If all channel types are transmitted continuously to ensure complete communication functionality, then communication completeness is improved, but device complexity increases
Solution Approach 1:
The patent extracts and transmits only the necessary channel types during active periods based on current service requirements. Instead of continuously transmitting all channel types (control channels, data channels, reference signals), the system selectively transmits only what is needed at each moment, reducing transmission complexity while maintaining communication completeness.
Solution Approach 2:
The patent dynamically configures which channel types are transmitted during active periods based on service requirements. The network device can adjust the set of transmitted channels flexibly, making the transmission system adaptable to different service scenarios while reducing overall complexity by not maintaining all channels continuously.
3Reliability
If terminal device monitors PDCCH continuously to ensure control channel reception, then control reliability is improved, but terminal power consumption increases
Solution Approach 1:
The patent implements periodic PDCCH monitoring where the terminal device monitors control channels only during active periods configured by the network device. During inactive periods, monitoring is suspended, significantly reducing terminal power consumption while maintaining control reliability through periodic updates during active periods.
Solution Approach 2:
The network device acts as an intermediary by configuring and notifying the terminal device of active periods through higher-layer signaling. This coordination ensures the terminal monitors PDCCH at appropriate times without continuous operation, balancing control reliability and power consumption through network-managed scheduling.
Data Source
AI summary
In a communication method, a terminal apparatus receives from a network apparatus first information that indicates that transmission of a first channel is not allowed in a first time period. The first channel includes all uplink channels or all downlink channels. Based on the first information, the terminal apparatus skips transmitting the first channel in the first time period.