Random Access Preamble Segmentation for Non-Terrestrial Network Resource Allocation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current wireless communications networks face challenges in efficiently supporting a wide range of devices with varying data traffic profiles, particularly in non-terrestrial networks where propagation delays are significant, affecting data transmission reliability and efficiency.
Innovation Solution
A method for data transmission in wireless telecommunications networks involving a communications device acting as a relay node, which selects a random access preamble associated with resource pools and transmits data using the activated resource pool indicated by the base station's response, optimizing data transmission in non-terrestrial networks with high propagation delays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If non-terrestrial networks are used to provide coverage in remote areas and on moving platforms, then coverage area and service continuity are improved, but propagation delays increase significantly
Solution Approach 1:
The patent segments the random access preambles into multiple groups, where each group is associated with a specific resource pool. This segmentation allows the system to manage different types of traffic (e.g., high-priority vs. low-priority, or different device categories) through separate resource pools, reducing the impact of propagation delays by enabling more efficient resource allocation for critical communications.
Solution Approach 2:
The patent performs preliminary configuration by associating each random access preamble group with specific resource pools before the actual data transmission occurs. This pre-establishment of mappings allows the communications device to quickly select and transmit data using the appropriate resource pool without waiting for dynamic allocation during the propagation delay period.
2Adaptability or versatility
If a wide range of devices with different data traffic profiles are supported, then system versatility is improved, but resource allocation complexity increases
Solution Approach 1:
The patent divides the resource allocation system into multiple discrete resource pools, each associated with specific random access preamble groups. This segmentation allows the system to accommodate different device types and traffic profiles by assigning appropriate preambles to appropriate resource pools, simplifying the resource allocation process while maintaining high versatility.
Solution Approach 2:
The patent creates a universal random access mechanism where multiple types of devices can use the same random access procedure but be directed to different resource pools based on their identified characteristics. This multi-functional approach allows a single random access system to serve diverse device requirements without requiring separate allocation mechanisms for each device type.
3Productivity
If multiple resource pools are associated with random access preambles, then data transmission efficiency is improved, but the complexity of managing preamble-resource mappings increases
Solution Approach 1:
The patent segments the resource allocation into distinct resource pools that are systematically associated with random access preamble groups. This segmentation enables efficient data transmission by ensuring that preambles are mapped to appropriate resource pools based on traffic characteristics, while the systematic organization of mappings reduces the complexity of management.
Solution Approach 2:
The patent utilizes parameter changes in the random access preamble structure or associated control information to indicate which resource pool should be activated. By encoding resource pool identification information within the preamble or related signaling parameters, the system can efficiently manage multiple resource pools without requiring complex separate mapping tables or procedures.
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A method for transmitting data by a communications device in a wireless telecommunications network, the wireless telecommunications network comprising a base station and a non-terrestrial network part, the method comprising determining that data is to be transmitted by the communications device to the base station via the non-terrestrial part, in response to the determining, selecting a random access preamble from a group of random access preambles, each of the random access preambles of the group being associated with one or more resource pools of communications resources for transmitting data, and transmitting the selected random access preamble, receiving a random access response transmitted by the base station in response to the transmission of the selected random access preamble, the random access response indicating an identity of an activated resource pool, the activated resource pool comprising communications resources for the transmission of the data to the base station via the non-terrestrial network part, and transmitting at least a portion of the data using the communications resources of the activated resource pool.