Uplink Resource Grouping for Collision Reduction
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Solution Overview
Problem
In uplink non-scheduled transmission solutions, resource collisions occur due to multiple terminals using the same resources, leading to reduced transmission efficiency, increased transmission delay, and higher power consumption.
Innovation Solution
The method involves grouping terminals into different groups, with each group contending for allocated resources, using various grouping manners such as random, path-loss-based, or beam-based methods, to reduce resource collisions and optimize resource allocation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If uplink non-scheduled transmission solution is used, then transmission efficiency is improved and signaling overhead is reduced, but resource collision probability increases
Solution Approach 1:
The patent divides the set of terminals into multiple groups based on their uplink transmission parameters (such as power, data rate, or service type). Each group is assigned dedicated uplink time-frequency resources, so that terminals within the same group contend for resources while terminals in different groups use separate resources. This segmentation reduces resource collision probability while maintaining the efficiency benefits of non-scheduled transmission.
2Productivity
If multiple terminals use the same resource for uplink transmission, then resource utilization is improved, but transmission delay increases due to resource collision
Solution Approach 1:
Terminals are segmented into different groups with dedicated resources, reducing collision probability and transmission delay for each terminal while maintaining overall resource utilization through controlled sharing within groups.
Solution Approach 2:
Different resource allocation strategies are applied to different terminal groups based on their specific characteristics (e.g., power levels, service requirements). High-power terminals may be grouped separately from low-power terminals, allowing each group to use resources optimized for its characteristics, thereby reducing delays while maintaining high resource utilization.
3Productivity
If multiple terminals use the same resource for uplink transmission, then resource utilization is improved, but power consumption increases due to resource collision
Solution Approach 1:
Terminals are segmented into groups with dedicated resources, reducing the need for repeated transmission attempts caused by collisions. This reduces the cumulative power consumption of terminals while maintaining effective resource utilization through intra-group sharing.
Data Source
AI summary
Embodiments of the present invention relate to communications technologies, and provide a data transmission method and an apparatus. The method includes: sending, by a base station, a grouping instruction to a target terminal, where the grouping instruction is used to group, in a preset grouping manner, terminals in a cell in which the target terminal is located into N groups, totally or partially different resources are allocated to terminals in different groups of the N groups, and a resource corresponding to an ith group of the N groups is used by a terminal in the ith group in uplink non-scheduled transmission; and receiving data that is sent by the target terminal using a target resource. In the solutions, terminals in a cell are grouped, and terminals in a same group contend for a resource allocated to the group. This mitigates resource collision when an uplink non-scheduled transmission solution is used.