Downlink Emergency Service Transmission via Reserved Resources
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Solution Overview
Problem
Existing downlink emergency service transmission methods in communications systems suffer from inefficiencies and delays due to the need for base stations to wait for idle resources, which is not suitable for the timely and efficient transmission of emergency data.
Innovation Solution
The method involves reserving specific system resources for downlink emergency services, allowing base stations to directly transmit emergency data using these reserved resources without waiting for idle times, and notifying user equipment to monitor only these reserved resources for emergency data, thereby reducing complexity and ensuring timely transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the base station waits for idle resources to transmit downlink emergency service, then resource allocation is efficient, but transmission delay increases
Solution Approach 1:
The base station pre-allocates dedicated physical downlink shared channels (PDSCH) and corresponding control resource sets (CORESETs) for emergency services before actual transmission occurs. This preliminary resource reservation ensures that when emergency data needs to be transmitted, immediately available resources exist, eliminating the need to wait for idle resources and thus resolving the contradiction between transmission delay and resource utilization efficiency
Solution Approach 2:
The system segments resources by creating separate dedicated PDSCH and CORESET resources specifically for emergency services, distinct from regular service resources. This segmentation allows emergency transmissions to occur independently without competing for general resources, reducing transmission delay while maintaining overall system productivity through specialized resource allocation
2Device complexity
If user equipment searches all system resources for emergency data, then resource allocation is comprehensive, but device complexity increases
Solution Approach 1:
The base station configures specific localized resources (dedicated PDSCH and associated CORESET) for emergency service transmissions. User equipment only needs to monitor these specific localized resources rather than scanning all system resources. This localized approach reduces UE monitoring complexity while ensuring reliable emergency data reception, as the emergency resources are guaranteed to be within the configured monitoring scope
Data Source
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Figure 3A
AI summary
Embodiments of the present invention disclose a downlink emergency service transmission method and a system. The method includes: reserving, by a base station from system resource, a reserved resource used to transmit a downlink emergency service; sending, by the base station, first indication information to user equipment, so as to instruct the user equipment to receive a downlink emergency service by using a resource indicated by the first indication information, where the first indication information is used to indicate the reserved resource; and sending, by the base station, the downlink emergency service to the user equipment by using the reserved resource. In solutions of the present invention, transmission efficiency of the downlink emergency service can be improved, and the downlink emergency service can be transmitted in time.