Downlink DCI Transmission Through Extended Data Resources
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Solution Overview
Problem
Current protocols require user equipment (UE) to monitor a large number of preset resources for downlink control information (DCI) channels, leading to increased power consumption and receiving delays.
Innovation Solution
The method involves determining the time domain positions of transmission resources for downlink control information within downlink data channels, allowing for extended resources to transmit DCI, reducing the need for UE to monitor preset resources, and using conditions to determine the transmission mode of DCI in these channels, thereby optimizing power consumption and reducing delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If UE monitors PDCCH in a large quantity of preset resources to ensure scheduling flexibility, then scheduling flexibility is improved, but power consumption increases
Solution Approach 1:
The patent merges the control channel function into data channel resources. Specifically, downlink control information is transmitted within downlink data channel resources rather than requiring separate PDCCH monitoring. This integration allows the UE to receive control information while processing data channel resources, thereby maintaining scheduling flexibility while significantly reducing power consumption by eliminating the need to monitor multiple preset control channel resources.
Solution Approach 2:
The patent makes data channel resources serve multiple functions: both data transmission and control information transmission. By enabling downlink data channel resources to carry both downlink data and downlink control information, the system achieves multi-functionality. This allows the same resources to fulfill both scheduling and data delivery roles, improving resource utilization efficiency and reducing the need for dedicated control channel monitoring.
2Adaptability or versatility
If UE monitors PDCCH in a large quantity of preset resources, then scheduling flexibility is improved, but receiving delay increases
Solution Approach 1:
The patent combines control channel and data channel functions into unified resources. By transmitting downlink control information within downlink data channel resources, the UE can obtain control information simultaneously with data processing, eliminating the sequential monitoring delay inherent in traditional PDCCH-based systems. This merging approach maintains scheduling flexibility while significantly reducing receiving delay.
Solution Approach 2:
The patent prepares control information transmission within data channel resources in advance. The network device determines time domain positions of transmission resources for downlink control information within downlink data channel resources, and configures this information to the UE beforehand. This preliminary configuration allows the UE to efficiently locate and process control information without extensive blind monitoring, thereby reducing receiving delay while maintaining scheduling flexibility.
3Use of energy by moving object
If resources are extended to transmit DCI in downlink data channel, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The patent changes key parameters including time domain position, frequency domain position, and resource configuration to enable control information transmission within data channel resources. By dynamically configuring these parameters through network-device determination and UE reception, the system achieves resource extension without requiring fundamental architectural changes. This parameter-based approach reduces power consumption while managing device complexity through standardized configuration procedures.
Solution Approach 2:
The patent introduces configuration information as an intermediary between the network device and UE. The network device determines transmission resource parameters and conveys them through configuration information, which acts as a mediator to coordinate the extended resource usage. This intermediary mechanism enables the control channel function extension while maintaining manageable device complexity through structured information exchange rather than complex direct control.
Data Source
AI summary
A downlink transmission method includes determining a time domain position of at least one first transmission resource in resources of a downlink data channel. When the at least one first transmission resource is a plurality of first transmission resources, start positions of time domain positions of the plurality of first transmission resources are the same. The at least one first transmission resource can be used to transmit downlink control information. The method also includes determining, based on the time domain position of the at least one first transmission resource and time domain positions of the resources of the downlink data channel, a condition satisfied by the at least one first transmission resource. The method further includes determining a transmission mode of the downlink control information and/or the downlink data channel in the resources of the downlink data channel based on the condition.