Uplink Transmission Control via High-Layer Signaling
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Solution Overview
Problem
In the context of 5G mobile communication systems, the integration of Ultra-Reliable Low Latency Communication (URLLC) services with Enhanced Mobile Broadband (eMBB) services leads to interference issues, where URLLC data may be misinterpreted as eMBB data, affecting demodulation performance. Additionally, terminals face increased power consumption and complexity due to frequent detection of transmission stopping signals.
Innovation Solution
A method and device for signal transmission that involve a terminal and a base station communicating through specific transmission resources, including time-domain, frequency-domain, or code-domain resources, where the base station sends a signal to instruct the terminal to stop uplink transmission on a predetermined resource, reducing blind detection and signaling overhead by configuring these resources through high-layer signaling and providing transmission parameters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the terminal frequently detects the transmission stopping signal to timely stop uplink transmission, then the reliability of uplink transmission control is improved, but the power consumption and complexity of the terminal increase
Solution Approach 1:
The base station pre-configures the terminal with a set of candidate time-domain resources and indicates the actual resource to be used through high-layer signaling before uplink transmission begins. This allows the terminal to know in advance where to stop transmission without needing to frequently detect stopping signals during transmission.
Solution Approach 2:
The patent introduces an intermediary mechanism where the base station sends indication information through high-layer signaling to specify which candidate resource will be used. This intermediary indication reduces the need for frequent detection by the terminal, as the resource allocation is explicitly communicated rather than requiring continuous monitoring.
2Speed
If the base station sends frequent transmission stopping signals to ensure timely stop of uplink transmission, then the responsiveness of transmission control is improved, but the signaling overhead increases
Solution Approach 1:
The base station performs preliminary configuration of candidate time-domain resources and provides indication information before uplink transmission starts. This preliminary action establishes the transmission stopping resource in advance, eliminating the need for frequent stopping signals during transmission and thereby reducing signaling overhead while maintaining responsiveness.
3Reliability
If the terminal performs blind detection of transmission stopping signals to ensure accurate reception, then the reliability of signal reception is improved, but the power consumption and complexity increase
Solution Approach 1:
The base station pre-configures candidate time-domain resources and indicates the actual resource through high-layer signaling before transmission begins. This preliminary configuration eliminates the need for blind detection by the terminal, as the exact resource location is known in advance, thereby maintaining reception reliability while significantly reducing power consumption.
Solution Approach 2:
The patent uses high-layer signaling as an intermediary to explicitly indicate the time-domain resource to be used. This intermediary mechanism replaces the need for blind detection, allowing the terminal to directly receive the indication without performing power-consuming blind searches, thus reducing power consumption while ensuring accurate reception.
Data Source
AI summary
A method and device for signal transmission are provided. The method includes operations as follows. A terminal receives a second signal. The second signal is configured to indicate the first transmission resource, and the first transmission resource comprises at least one of a time-domain resource, a frequency-domain resource or a code-domain resource. The terminal receives a first signal on the first transmission resource. The first signal is configured to instruct to stop uplink transmission.