Dual Connectivity Control Information Carrier Consolidation
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Solution Overview
Problem
In wireless communications systems employing dual connectivity technology, the transmission of control information across multiple carriers results in high air interface overheads, reducing overall transmission performance due to the need for control information to be sent on all carriers carrying downlink service data.
Innovation Solution
The method involves configuring a first carrier for a first functional entity and a second carrier for a second functional entity, where the second functional entity sends the control information obtained from the first functional entity using the second carrier, thereby reducing the load and overhead on the first carrier and optimizing resource usage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If control information is transmitted on all carriers carrying downlink service data, then complete control information transmission is achieved, but air interface overheads increase and transmission performance decreases
Solution Approach 1:
The patent extracts control information transmission from all carriers and consolidates it to a specific carrier (second carrier). By taking out the control information transmission function from multiple carriers and placing it on a single dedicated carrier, the system reduces air interface overheads while maintaining transmission completeness through proper identifier assignment.
Solution Approach 2:
The second carrier is assigned multiple functions: it carries downlink service data for the second functional entity and simultaneously carries control information from both the first and second functional entities. This multi-functionality allows the system to reduce overall overhead by consolidating control information transmission while maintaining complete communication capability.
2Adaptability or versatility
If control information is transmitted on all carriers, then all protocol layer control information can be sent, but the load on each carrier increases
Solution Approach 1:
The patent merges control information transmission from multiple carriers into a single carrier (second carrier). By combining control information from both first and second functional entities onto one carrier, the system reduces individual carrier load while maintaining comprehensive control information transmission coverage through identifier-based differentiation.
3Ease of operation
If control information is sent on the first carrier, then first carrier control information can be transmitted, but air interface overheads increase
Solution Approach 1:
The patent extracts control information transmission from the first carrier and relocates it to the second carrier. By taking out the control information function from the first carrier, the system eliminates redundant transmissions and reduces air interface overheads while maintaining operational effectiveness through proper identifier assignment.
Data Source
AI summary
A transmission method is implemented by a communications device including a first functional entity and a second functional entity. A first carrier is configured for the first functional entity, and a second carrier is configured for the second functional entity. The second functional entity obtains first information, where the first information is first control information of the first functional entity, or is the first control information and second control information of the second functional entity, the first control information includes a first identifier, and the first identifier is used to indicate the first carrier; and the second functional entity sends the first information by using the second carrier.