Time-Frequency Resource Allocation for Data Transmission
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Solution Overview
Problem
In LTE systems, the high signaling overhead due to the need for individual scheduling instructions for each data transmission and the uncertainty of channel occupation on unlicensed spectra lead to reduced success rates of data transmission, as UE may not successfully occupy allocated time-frequency resources.
Innovation Solution
Allocating and configuring at least two time-frequency resources for data transmission, allowing the UE to attempt data transmission on multiple resources if one is occupied, and using data transmission configuration information to reduce signaling overhead by indicating multiple resources in a single configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If individual scheduling instructions are sent for each data transmission, then data transmission can be scheduled, but signaling overhead increases
Solution Approach 1:
The patent merges multiple scheduling instructions into a single configuration message that contains resource allocation information for multiple time-frequency resources. Instead of sending separate scheduling instructions for each resource, the base station generates one configuration message that the UE uses to determine multiple available resources, thereby reducing signaling overhead while maintaining scheduling capability.
Solution Approach 2:
The patent implements preliminary action by pre-configuring multiple time-frequency resources in advance through a single configuration message. The UE receives the configuration information beforehand and can autonomously determine multiple candidate resources without waiting for individual scheduling instructions, enabling proactive resource preparation and reducing subsequent signaling requirements.
2Productivity
If UE attempts to occupy allocated time-frequency resources on unlicensed spectrum, then data transmission can proceed, but channel occupation uncertainty reduces success rate
Solution Approach 1:
The patent applies dynamics by providing the UE with multiple candidate time-frequency resources instead of a single static allocation. The UE can dynamically select from multiple available resources based on channel conditions and LBT outcomes. This dynamic approach increases the probability of successful transmission by offering alternative resources when the primary choice is unavailable.
Solution Approach 2:
The patent implements beforehand cushioning by pre-allocating multiple backup time-frequency resources alongside the primary resource. When the UE encounters channel occupation issues or LBT failures on one resource, it has pre-prepared alternative resources to fall back on, cushioning against transmission failures and improving overall success rates without requiring real-time re-scheduling.
Data Source
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AI summary
The present disclosure relates to a data transmission method, device, equipment, system and storage medium, which belong to the field of communication technology. The method comprises: obtaining data transmission configuration information; determining at least two time-frequency resources according to the data transmission configuration information, the time-frequency resources being used to indicate frequency-domain resources in a time-domain unit; and for each time-frequency resource occupied by a user equipment (UE), performing data transmission at a frequency-domain resource location in the time-domain unit indicated by the time-frequency resource. The present disclosure solves the problem where, when one scheduling instruction can only indicate one time-frequency resource, if a UE does not occupy said time-frequency resource, data transmission cannot be carried out, and thus the present disclosure achieves the effect of improving the success rate of data transmission; the present disclosure also solves the problem where, when a scheduling instruction can only indicate one time-frequency resource, every time the UE transmits data, the scheduling instruction must be transmitted, which leads to a large signaling overhead, thus the present disclosure reduces signaling overhead.