Spacing Bandwidth Resource Scheduling in LTE and NR
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Solution Overview
Problem
In communication technologies, especially in enhanced licensed assisted access (eLAA) of Long Term Evolution (LTE) and New Radio (NR), there is a discrepancy in understanding between network devices and terminal equipment regarding schedulability of spacing bandwidth resources, leading to inconsistent resource allocation and inefficient utilization.
Innovation Solution
A method and apparatus for determining and scheduling resources, where a terminal equipment receives indication and scheduling information from a network device to determine whether spacing bandwidth resources belong to scheduling bandwidth resources, thereby determining the size of a transport block and improving resource utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If network device and terminal equipment use different understanding of spacing bandwidth resource schedulability, then resource allocation flexibility is improved, but resource utilization efficiency deteriorates
Solution Approach 1:
The patent applies homogeneity by establishing uniform rules for both network device and terminal equipment to determine schedulability of spacing bandwidth resources. Both sides use the same criteria: checking if resources are within scheduled bandwidth range and not overlapping with guard resources, ensuring consistent understanding and eliminating allocation discrepancies.
Solution Approach 2:
The patent implements feedback mechanisms where the network device provides scheduling information to the terminal equipment, and both parties continuously adjust their resource determination based on received scheduling information. This closed-loop feedback ensures both sides reach consensus on which spacing bandwidth resources are schedulable.
2Measurement precision
If indication information is transmitted to clarify spacing bandwidth resource schedulability, then resource allocation accuracy is improved, but signaling overhead increases
Solution Approach 1:
The patent makes the existing scheduling information serve multiple functions: it not only allocates resources but also implicitly indicates the schedulability of spacing bandwidth resources. By reusing existing signaling structures to convey additional meaning, the patent avoids introducing separate dedicated signaling for spacing resource indication.
Solution Approach 2:
The terminal equipment autonomously determines the schedulability of spacing bandwidth resources by itself based on the received scheduling information and predetermined rules, without requiring explicit indication from the network device. This self-determination mechanism eliminates the need for additional signaling while maintaining accurate resource allocation.
Data Source
AI summary
A resource determination apparatus includes: a receiver configured to: receive indication information transmitted by a network device, and receive resource scheduling information transmitted by the network device; and processor circuitry configured to: determine resource allocation in frequency domain as an intersection of resource blocks of scheduled interlaces indicated by the resource scheduling information, and a union of: scheduled bandwidth unit(s) indicated by the indication information; and spacing bandwidth resource(s) between the scheduled bandwidth unit(s), and determine a size of a transport block according to the resource allocation in frequency domain.