Uplink Multiplexed Resource Determination Signaling Overhead
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Solution Overview
Problem
In 5G communication, existing techniques require significant signaling overhead to indicate uplink multiplexed time-frequency resources, leading to inefficient resource utilization and increased latency for short-duration users like URLLC, as they compulsively occupy resources of long-duration users like eMBB, potentially damaging data.
Innovation Solution
A method to determine uplink multiplexed time-frequency resources by acquiring indication information from a base station, where resource information is derived based on the time domain position of the last symbol of the indication information, reducing the need for extensive signaling by using less information and optimizing resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If dynamic signaling or high-layer signaling is used to send a large amount of indication information for uplink multiplexed time-frequency resources, then the base station can provide complete resource indication information to long-duration users, but the signaling overhead greatly increases
Solution Approach 1:
The patent extracts only the essential frequency domain resource indication information from the complete resource indication, and derives the time domain resource information implicitly based on the time domain position of the last symbol of the indication information. This extraction approach sends only necessary information through signaling while reducing overhead.
Solution Approach 2:
The long-duration user equipment performs self-determination of the complete time-frequency resource information by combining the received frequency domain indication with implicit time domain position derivation. The UE autonomously calculates the uplink multiplexed time-frequency resources without requiring explicit signaling from the base station, thereby reducing signaling overhead.
2Loss of time
If short-duration users compulsively occupy time-frequency resources of long-duration users to meet low latency requirements, then the latency for short-duration users is reduced, but data of long-duration users may be destroyed
Solution Approach 1:
The base station sends frequency domain resource indication information to long-duration users in advance before the short-duration user occupies the resources. This preliminary indication allows long-duration users to identify which frequency resources will be multiplexed and adjust their transmission accordingly, preventing data destruction while enabling resource sharing.
Solution Approach 2:
The system establishes a feedback mechanism where long-duration users receive indication information about upcoming resource multiplexing, allowing them to adapt their transmission. This feedback loop ensures that both short-duration and long-duration users can coordinate their resource usage, maintaining data integrity while achieving low latency for urgent transmissions.
Data Source
AI summary
A method and a device for determining an uplink multiplexed time-frequency resource, a storage medium, and a user equipment. The method may include: acquiring indication information of the uplink multiplexed time-frequency resource from a base station, wherein the indication information comprises resource indication information of a frequency domain resource in the uplink multiplexed time-frequency resource; determining resource information of the frequency domain resource based on the resource indication information; and determining resource information of a time domain resource in the uplink multiplexed time-frequency resource at least based on a time domain position of the last symbol of the indication information. Resource information of a time domain resource may be determined based on less information, which facilitates saving signaling overheads of indication information of uplink multiplexed time-frequency resources.