Variable DCI Indicator Bits for Flexible Wireless Resource Scheduling
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Solution Overview
Problem
The existing LTE system has limited flexibility in resource usage for channel transmission, which is inadequate for the high flexibility required by the new radio (NR) system.
Innovation Solution
A wireless communication method and device that determine an indication format of multiple indicator bits in downlink control information (DCI) to indicate a resource index, allowing for flexible scheduling of resources without being limited to specific types or formats, enabling variable DCI structures and improved resource indication flexibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a specific timing relationship between PUCCH and other channels is used to determine resources, then the resource determination is simple, but the flexibility in resource usage is low
Solution Approach 1:
The patent applies dynamics by making the DCI structure variable rather than fixed. The DCI format can be dynamically adjusted based on the number of resource sets and channel formats, allowing the system to adapt between simple timing-based resource determination and more flexible resource allocation modes as needed
Solution Approach 2:
The patent changes parameters by allowing the number of bits in DCI to vary depending on the configuration. When K≥1, additional bits are used to indicate resource set indices, resource type indices, or channel format indices, enabling the system to transition from simple to flexible resource allocation by adjusting the DCI parameter structure
2Adaptability or versatility
If variable DCI structures are used to schedule resources, then the flexibility in resource usage is improved, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing a DCI structure that can serve multiple functions. The same DCI format can indicate resources for different resource sets, resource types, and channel formats, allowing one structure to handle multiple allocation scenarios without requiring separate dedicated formats for each case
Solution Approach 2:
The patent segments the resource indication into multiple hierarchical levels: resource set index (when K≥1), resource type index (when K≥1), channel format index (when K≥1), and resource index within the set. This segmentation allows complex resource allocation to be broken down into manageable indicator components
Data Source
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AI summary
Provided in the embodiments of the present application are a wireless communication method and device, which may improve the flexibility of resource usage for channel transmission. The method comprises: a terminal device determines an indication format for multiple indicator bits in downlink control information (DCI) indicating a resource index of a scheduling resource, the indication format being used to define: the K bits among the multiple indicator bits that indicate a resource set, a resource type or a channel format corresponding to the scheduling resource, wherein K is an integer greater than or equal to 0; the terminal device determines a resource index indicated by the multiple indicator bits from the DCI on the basis of the determined indication format; and the terminal device determines, from at least one available resource, a scheduling resource for communication with a network device according to the determined resource index.