Sidelink Logical Channel Multiplexing with Range-Based Resource Allocation
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Solution Overview
Problem
In vehicle-to-everything (V2X) communication systems, existing technologies do not effectively utilize transmission resources due to the inability to multiplex sidelink logical channels (SL LCHs) with different communication ranges into the same transport block, leading to resource wastage and inefficient power consumption.
Innovation Solution
A method where a terminal determines a first SL LCH that meets a preset condition and allocates resources to it, then identifies a second SL LCH based on its communication range, allowing data from SL LCHs with similar or same communication ranges to be multiplexed into a same transport block, thereby improving resource utilization and avoiding waste.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If data from SL LCHs with different communication ranges are multiplexed into the same transport block, then transmission resource utilization is improved, but data reliability may be compromised due to power adjustment requirements
Solution Approach 1:
The patent adjusts transmission power parameters based on communication range requirements. When multiplexing SL LCHs with different communication ranges into the same transport block, the system modifies power parameters to ensure that each logical channel's data meets its specific communication range requirement, thus maintaining data reliability while improving resource utilization
Solution Approach 2:
The system dynamically determines whether to multiplex SL LCHs with different communication ranges by evaluating communication range differences. This dynamic approach allows the system to adaptively decide on multiplexing strategies, adjusting resource allocation and power distribution in real-time to balance resource efficiency with data reliability
2Productivity
If SL LCHs with different communication ranges are multiplexed without power adjustment, then resource utilization improves, but communication range requirements cannot be met
Solution Approach 1:
The patent modifies transmission power parameters to satisfy different communication range requirements when multiplexing SL LCHs. By adjusting power parameters, the system ensures that each logical channel's data can achieve its required communication range even when multiplexed with other channels having different range requirements
3Reliability
If separate transport blocks are used for SL LCHs with different communication ranges, then communication range requirements are met, but transmission resources are wasted
Solution Approach 1:
The patent merges SL LCHs with different communication ranges into the same transport block when feasible, using power parameter adjustments to maintain communication range requirements. This merging strategy reduces the number of separate transmissions needed, thereby reducing overall transmission resource consumption and energy waste
Data Source
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AI summary
Embodiments of this application provide a sidelink logical channel multiplexing method and apparatus. After determining a sidelink logical channel SL LCH (referred to as a first SL LCH for short) that meets a first preset condition in at least one SL LCH, a terminal allocates a resource to data of the first SL LCH. Then, when a remaining resource of transmission resources is more than zero, the terminal determines, based on a communication range of the first SL LCH, a second SL LCH that meets a second preset condition, and allocates a resource to data of the second SL LCH. The first SL LCH and the second SL LCH are different. In the method, such a parameter as a communication range is considered in a multiplexing process, and data of SL LCHs with same or different communication ranges is multiplexed into a same transport block, so that utilization of the transmission resources is improved, and a waste of the transmission resources is avoided.