Multi-Carrier Wireless Transmission Using Legacy Carrier Indication
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wireless communication systems face challenges in efficiently providing services, particularly in advanced systems like 6G, due to the lack of effective methods for utilizing multiple carriers and legacy carriers without specific transmission profiles.
Innovation Solution
A method and device are provided to perform wireless communication by obtaining and utilizing information related to multiple carriers, including legacy carriers, to facilitate efficient transmission and reception.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple carriers including legacy carriers are utilized without specific transmission profiles, then spectral efficiency and data rate are improved, but system complexity and difficulty of managing carrier information increase
Solution Approach 1:
The patent segments carrier information management by introducing separate indication mechanisms for different carrier types. The network device sends first indication information for active carriers and second indication information for dormant carriers, allowing the terminal to manage multiple carriers through divided information sets rather than a single complex profile, thus improving data rate while controlling system complexity.
Solution Approach 2:
The patent applies preliminary action by pre-configuring carrier information including uplink/downlink configuration and reference signal resource information before actual transmission. The network device sends indication information in advance to activate or dormantly mark carriers, enabling the terminal to prepare reception parameters beforehand, which improves spectral efficiency while reducing real-time processing complexity.
2Adaptability or versatility
If legacy carriers are included in multiple carrier transmission, then compatibility and service coverage are improved, but transmission reliability and signal quality may deteriorate
Solution Approach 1:
The patent applies local quality by applying different quality levels to different carrier types. Active carriers receive full transmission resources and highest priority for reliable service, while dormant carriers use reduced resources and lower priority, providing basic coverage. This differentiated approach ensures transmission reliability on active carriers while maintaining service coverage through dormant carriers.
Solution Approach 2:
The patent uses partial action by allocating transmission resources selectively rather than uniformly across all carriers. The network device can activate only necessary carriers based on service requirements, providing full resources to active carriers for reliable transmission while using dormant carriers only when needed, thus maintaining transmission reliability while extending service coverage.
3Loss of information
If transmission profile information is not provided for each carrier, then signaling overhead is reduced, but the terminal's ability to accurately manage carrier-specific parameters deteriorates
Solution Approach 1:
The patent applies universality by creating a multi-functional indication mechanism where a single indication information structure serves multiple purposes. The first indication information activates carriers while the second indication information dormantly marks carriers, and both carry carrier-specific parameters such as uplink/downlink configuration and reference signal resource information. This universal structure reduces signaling overhead while maintaining parameter accuracy through integrated information delivery.
Data Source
Figure 1
Figure 2
Figure 3
AI summary
A method for performing wireless communication by a first device, and an apparatus for supporting same are provided. The method may comprise the steps of: acquiring information on multiple carriers; and performing transmission on the basis of the multiple carriers. For example, on the basis that information on a transmission (TX) profile is not provided, the transmission may be performed on the basis that a legacy carrier included in the multiple carriers is at least included.