Sidelink Resource Allocation Logical Channel Group Segmentation
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Solution Overview
Problem
In 5G sidelink communication systems, there is a challenge in ensuring that resources allocated for sidelink communication match with the selected wireless access technology for each logical channel, particularly for user equipment supporting multiple wireless access technologies like LTE and NR, to ensure efficient data transmission.
Innovation Solution
A method is introduced where a sidelink resource allocation node transmits configuration information of logical channel groups to user equipment, allowing logical channels using different wireless access technologies to correspond to different groups, and allocates transmission resources based on Quality of Service (QoS) parameters and logical channel group identifiers, ensuring that all logical channels in a group use the same wireless access technology.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If user equipment supports multiple wireless access technologies (LTE and NR) on the sidelink interface, then the versatility and adaptability of the system is improved, but the complexity of resource allocation and matching increases
Solution Approach 1:
The patent segments logical channels into different logical channel groups (LCGs) based on their associated wireless access technologies. Each LCG is specifically configured for a particular technology (e.g., LTE LCG, NR LCG), allowing the resource allocation node to manage different technologies separately. This segmentation resolves the complexity by organizing the multiplexing of multiple technologies into distinct, manageable groups rather than handling them as a unified complex system.
2Reliability
If the network schedules resources for sidelink communication, then the reliability of resource allocation is improved, but the loss of time for resource allocation increases
Solution Approach 1:
The patent implements preliminary action by pre-configuring the mapping relationships between logical channel groups and wireless access technologies at the resource allocation node before actual data transmission occurs. The node stores configuration information that defines which LCGs correspond to which technologies (LTE, NR, etc.), enabling rapid resource allocation decisions during operation without requiring time-consuming real-time analysis or reconfiguration.
3Adaptability or versatility
If configuration information of logical channel groups is transmitted to user equipment, then the adaptability of resource allocation to different technologies is improved, but the loss of information for configuration transmission increases
Solution Approach 1:
The patent applies universality by designing the configuration information to serve multiple functions simultaneously. The same configuration message conveys both the mapping relationships between LCGs and wireless access technologies, and also provides the resource allocation node with the necessary intelligence to make technology-aware scheduling decisions. This multi-functional configuration approach reduces redundant information transmission while maintaining full adaptability.
Data Source
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AI summary
Disclosed are a direct communication resource allocation method and apparatus. The method comprises: receiving direct communication interface logical channel group configuration indication information sent by a resource allocation management node, wherein the direct communication interface logical channel group configuration indication information is used for indicating that logical channels using different wireless access technologies respectively correspond to different logical channel groups; and according to the direct communication interface logical channel group configuration indication information, determining a logical channel group corresponding to a direct communication interface logical channel. The present application can ensure that resources allocated by a direct communication resource allocation node can match the wireless access technology selected by each logical channel on a direct communication interface of a terminal.