Uplink Resource Allocation for Urgent Data Packets
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Solution Overview
Problem
Existing LTE systems cannot allocate uplink resources in a timely manner for urgent data packets due to their inability to report remaining time information, leading to failures in meeting high reliability and low latency requirements for ultra-reliable and low-latency communication services.
Innovation Solution
A data sending method where a terminal device reports the remaining time of data packets to a network device, allowing the network to allocate resources accordingly and ensure timely transmission of urgent data packets.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If the existing SR and BSR mechanisms are used, then the terminal device can report data volume information to the base station, but the base station cannot allocate uplink resources for urgent data packets in a timely manner
Solution Approach 1:
The patent applies preliminary action by having the terminal device report remaining time information for data packets in advance. The terminal includes remaining time information of data packets in scheduling requests or buffer status reports, enabling the base station to proactively allocate resources before the data packets become urgent, thus reducing resource allocation time while maintaining transmission reliability.
2Reliability
If the terminal device reports only data volume information through BSR, then the reporting mechanism is simple, but the base station cannot identify urgent data packets requiring immediate resource allocation
Solution Approach 1:
The patent merges remaining time information with existing data volume information in the same reporting messages (SR or BSR). The terminal device includes both the data volume to be sent and the remaining time information for data packets in the same buffer status report, allowing the base station to identify urgent packets without requiring separate reporting mechanisms, thus maintaining simplicity while improving reliability.
Solution Approach 2:
The patent uses remaining time information as an intermediary parameter that bridges the gap between simple data volume reporting and urgent packet identification. By introducing this intermediate metric that indicates how soon data must be transmitted, the system can identify urgent packets using existing reporting structures without adding significant complexity.
3Reliability
If the base station allocates resources based on traditional SR/BSR mechanisms, then resource allocation follows standard procedures, but the allocation cannot meet high reliability and low latency requirements
Solution Approach 1:
The patent applies dynamics by making resource allocation adaptive based on remaining time information. The base station dynamically adjusts resource allocation timing and priority according to the remaining time values reported by the terminal device, allocating resources more aggressively for packets with shorter remaining times. This dynamic approach increases both the probability of error-free transmission and the speed of data transmission by matching resource allocation to actual urgency.
Data Source
AI summary
Example data sending methods and apparatus are described. One example method includes sending a first message to a network device by a terminal device. The first message is used to indicate information about remaining time of each of one or more data packets. The remaining time of each of the one or more data packets is used to indicate that the terminal device needs to finish sending each of the one or more data packets before the end of the remaining time. The terminal device obtains information about a resource configured by the network device for the terminal device, wherein the resource is used to send each of the one or more data packets before the end of the remaining time.