PUSCH Interlaced Resource Allocation for DCI 0_0 Scheduling
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Solution Overview
Problem
There is no resource allocation scheme available for DCI format 0_0 (fallback downlink control information) in existing communication systems, particularly for physical uplink shared channels with interlaced structures.
Innovation Solution
A method and apparatus are provided to determine resource allocation types for DCI format 0_0 by using configuration information that indicates whether a physical uplink shared channel (PUSCH) with an interlaced structure is used, allowing the determination of resource allocation types and the number of bits in frequency domain resource assignment indication information, including uplink resource allocation type 1 or interlaced structures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If DCI format 0_0 is used for scheduling PUSCH, then fallback downlink control information is provided for reliable communication, but no resource allocation scheme is available causing incomplete functionality
Solution Approach 1:
The patent extends the resource allocation capability of DCI format 0_0 to support both traditional contiguous resource allocation and interlaced resource allocation. By making the frequency domain resource assignment field versatile to indicate different allocation types based on configuration, the same DCI format can adapt to multiple resource allocation scenarios, thereby resolving the contradiction between reliability (maintaining DCI format 0_0 for fallback) and adaptability (supporting multiple resource allocation schemes).
2Adaptability or versatility
If interlaced structure is introduced for PUSCH, then resource allocation flexibility in unlicensed bands is improved, but complexity of resource allocation determination increases
Solution Approach 1:
The patent introduces configuration information that is pre-configured to indicate whether interlaced resource allocation is enabled. This preliminary configuration allows the UE to determine the resource allocation type in advance before actual scheduling occurs. By performing the determination action beforehand through configuration, the patent reduces the complexity during real-time resource allocation while maintaining the flexibility to support interlaced structures when needed.
Solution Approach 2:
The patent uses configuration information as an intermediary between the network device and UE for resource allocation type determination. This intermediary configuration indicator simplifies the interaction by providing a clear signal that tells the UE which resource allocation type to use, thereby reducing the complexity of resource allocation determination while maintaining flexibility to support both contiguous and interlaced allocation modes.
3Adaptability or versatility
If DCI format 0_0 supports multiple resource allocation types, then functionality is enhanced, but ambiguity in resource allocation type determination may occur
Solution Approach 1:
The patent applies different resource allocation interpretation rules based on the local configuration state. When interlaced resource allocation is configured, the frequency domain resource assignment field is interpreted according to interlaced allocation rules; when not configured, it follows traditional contiguous allocation rules. This local quality approach ensures that the resource allocation type determination is unambiguous within each configuration context, resolving the contradiction between supporting multiple allocation types and maintaining clarity.
Data Source
AI summary
Resource allocation method and apparatus, user equipment, network device, and medium are disclosed. The resource allocation method is applied to user equipment, and the resource allocation method includes: receiving configuration information, where the configuration information includes indication information whether a physical uplink shared channel PUSCH with an interlaced structure is used or not; and determining, according to the indication information whether a PUSCH with an interlaced structure is used or not, a resource allocation type for a PUSCH scheduled by DCI format 0_0 or a quantity X of bits included in frequency domain resource assignment indication information in the DCI format 0_0, where the resource allocation type includes an uplink resource allocation type 1 or a resource allocation type for interlaced structures, and X is a positive integer.