DCI Flexibility via Trigger Signaling Resource Location
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Solution Overview
Problem
The New Radio (NR) system faces challenges in improving the flexibility of Downlink Control Information (DCI) to accommodate diverse communication scenarios, particularly in acquiring resource locations for feedback information without relying on the DCI itself.
Innovation Solution
The proposed solution involves acquiring the resource location for uplink feedback information in manners other than through the DCI, allowing for enhanced flexibility by using alternative signaling methods and indicators, such as trigger signaling, to determine the resource location, thereby improving the resource location indication flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the resource location for feedback information is acquired from the DCI, then the feedback mechanism is simple and direct, but the flexibility of DCI is limited and cannot accommodate diverse communication scenarios
Solution Approach 1:
The patent introduces trigger signaling as an intermediary mechanism between the network device and terminal device. Instead of directly embedding resource location information in the DCI, the trigger signaling carries indication information that points to the feedback resource, allowing the DCI to remain flexible while maintaining a clear feedback mechanism through this intermediary trigger signal.
Solution Approach 2:
The patent segments the resource location indication into separate components: the DCI contains scheduling information, while the trigger signaling contains the feedback resource location indication. This segmentation allows each component to be optimized independently - the DCI for scheduling flexibility and the trigger signaling for feedback reliability.
2Adaptability or versatility
If the DCI includes resource location information for feedback, then the feedback resource can be directly indicated, but the DCI structure becomes less flexible for diverse scenarios
Solution Approach 1:
The trigger signaling acts as an intermediary that carries the feedback resource location indication separately from the DCI. This allows the DCI to be optimized for scheduling flexibility while the trigger signaling ensures that feedback resource information is not lost, as it is transmitted through this dedicated intermediary channel.
Solution Approach 2:
The patent moves the feedback resource location indication from the DCI dimension to a separate trigger signaling dimension. This dimensional separation allows the DCI to focus on scheduling flexibility while the trigger signaling dimension handles the feedback resource indication, effectively adding a new dimension to the communication protocol.
3Adaptability or versatility
If alternative methods are used to acquire resource location instead of DCI, then DCI flexibility is improved, but the complexity of the overall system increases
Solution Approach 1:
The trigger signaling serves multiple functions: it triggers the terminal device to send feedback, carries the feedback resource location indication, and can indicate the feedback timing. This multi-functionality reduces the need for separate mechanisms, thereby limiting the increase in system complexity while achieving DCI flexibility.
Solution Approach 2:
The patent merges the feedback triggering function and the resource location indication into a single trigger signaling mechanism. This combining of functions reduces the overall system complexity by eliminating the need for separate triggering and indication mechanisms, while still allowing DCI to remain flexible.
Data Source
AI summary
Implementations of the present application provided a wireless communication method, a terminal device, and a network device, for use in improving the flexibility of downlink control information (DCI). The method comprises: executing a transmitting operation of a first feedback sequence on a first uplink resource, wherein the first feedback sequence comprises feedback information corresponding to at least one first DCI; the feedback information corresponding to the first DCI reflects the reception condition of a data channel scheduled by the first DCI or the reception condition of the first DCI; the resource position of the first uplink resource is obtained by the approach other than the approach of obtaining from the first DCI.