Scheduling Request Configuration Mapping for Carrier Aggregation
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Solution Overview
Problem
In the context of multiple-carrier user equipment, there is a challenge in correctly sending a Scheduling Request (SR) due to failures in the mapping relationship when SR configurations are performed, particularly in scenarios involving Carrier Aggregation (CA) and New Radio (NR) discussions.
Innovation Solution
The method involves configuring SR configurations for terminal devices corresponding to different carriers and mapping these configurations to Logical Control Channels (LCHs), ensuring timely resource determination during scheduling requests, thereby improving system processing efficiency. This is achieved by either configuring different SR configurations with the same period for different carriers or using fewer SR configurations to map multiple carriers and LCHs, ensuring correspondences among LCHs, carriers, and SR configurations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple SR configurations are configured for different carriers in Carrier Aggregation scenario, then the terminal can support multiple carriers and improve system capacity, but the mapping relationship between SR configurations and LCHs becomes complex and may cause failures in SR transmission
Solution Approach 1:
The patent segments the SR configuration management by introducing a one-to-one mapping relationship between SR configurations and LCHs. Each SR configuration is uniquely associated with a specific LCH, which in turn is associated with a specific carrier. This segmentation prevents mapping conflicts and ensures reliable SR transmission while maintaining multi-carrier support.
Solution Approach 2:
The patent introduces LCH as an intermediary layer between SR configurations and carriers. The LCH acts as a mediator that establishes clear correspondence relationships: SR configuration → LCH → carrier. This intermediary structure resolves the complexity of direct mapping between multiple SR configurations and multiple carriers, ensuring both adaptability and reliability.
2Productivity
If multiple SR configurations are configured for different carriers, then the terminal can perform scheduling requests on multiple carriers, but the device complexity increases due to the need to manage multiple configurations and their mappings
Solution Approach 1:
The patent divides the SR configuration management into independent, manageable units by establishing a one-to-one correspondence between SR configurations and LCHs. Each SR configuration is tied to a specific LCH and carrier combination, which simplifies the management complexity while maintaining the ability to handle multiple scheduling requests across different carriers.
Solution Approach 2:
The patent creates a universal mapping framework where the same LCH structure can be reused across multiple carriers and SR configurations. This universal approach allows the system to handle multiple carriers and scheduling requests using a consistent management mechanism, thereby increasing productivity without proportionally increasing device complexity.
3Adaptability or versatility
If SR configurations are mapped to LCHs in a many-to-many relationship, then the system is more flexible in allocating resources, but the terminal may fail to correctly determine the corresponding resource for SR transmission
Solution Approach 1:
The patent segments the resource allocation mapping from many-to-many to a series of one-to-one mappings. Each SR configuration is uniquely mapped to one LCH, and each LCH is uniquely mapped to one carrier. This segmentation maintains the flexibility of resource allocation while ensuring precise and unambiguous resource determination for SR transmission.
Solution Approach 2:
The patent uses LCH as an intermediary that establishes clear, unambiguous correspondence between SR configurations and carriers. The one-to-one mapping through LCH acts as a precise mediator that eliminates the ambiguity inherent in many-to-many relationships, thereby ensuring accurate resource determination while preserving allocation flexibility.
Data Source
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AI summary
Disclosed are a method for configuring a scheduling request, a network device, a terminal device, and a computer storage medium. The method comprises: configuring for a terminal device configuration parameters of a scheduling request respectively corresponding to each carrier in at least one carrier, wherein the configuration parameters of at least one scheduling request are configured for the same carrier; and configuring for the terminal device a mapping relation between each logical channel in at least one logical channel and the configuration parameters of at least one scheduling request.