5G Carrier Aggregation Grouping by User Location
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Solution Overview
Problem
Conventional carrier aggregation methods in 5G NR massive MIMO systems fail to consider factors other than data buffer size for activating and deactivating primary and secondary cells, leading to reduced coverage balancing, increased interference, and decreased data throughput due to inadequate frequency-diversity and bandwidth availability.
Innovation Solution
The system divides a coverage area into carrier aggregation (CA) groups based on user device location and Synchronization Signal Block (SSB) beam reports, assigning component carriers to specific groups to minimize interference and optimize resource allocation, thereby improving coverage balancing and data throughput.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If conventional carrier aggregation methods activate and deactivate cells based only on data buffer size, then device complexity is reduced, but coverage balancing deteriorates and interference increases
Solution Approach 1:
The patent changes the parameters used for cell activation/deactivation from only data buffer size to include user location, SSB beam reports, and interference measurements. This multi-parameter approach improves coverage balancing and interference management while maintaining reasonable device complexity through standardized measurement procedures.
Solution Approach 2:
The patent implements feedback mechanisms where the network receives SSB beam reports and interference measurements from user devices, then uses this feedback to make informed decisions about carrier aggregation group assignments and cell activation/deactivation, improving coverage balancing dynamically.
2Ease of operation
If conventional carrier aggregation methods use simple buffer-size-based cell activation, then ease of operation is improved, but data throughput decreases due to inadequate frequency-diversity
Solution Approach 1:
The patent enhances the cell activation/deactivation decision parameters to include location information, SSB beam quality, and interference levels. This allows the system to maintain frequency diversity and optimize data throughput while keeping the operation straightforward through automated network-side decisions.
Solution Approach 2:
The patent performs preliminary actions by pre-configuring carrier aggregation groups and pre-measuring interference patterns and beam qualities, so that when cell activation/deactivation is needed, the system can make rapid informed decisions without complex real-time calculations, maintaining ease of operation while optimizing throughput.
3Device complexity
If carrier aggregation groups are assigned without considering user location and SSB beam reports, then device complexity is reduced, but coverage balancing and bandwidth availability deteriorate
Solution Approach 1:
The patent changes the assignment parameters to include user location and SSB beam report quality metrics. The network uses these parameters to assign users to appropriate carrier aggregation groups, improving coverage balancing while the complexity is managed through centralized network-side processing.
4Ease of operation
If carrier aggregation groups are assigned without interference detection, then ease of operation is improved, but harmful factors increase due to increased interference
Solution Approach 1:
The patent implements feedback loops where the network continuously monitors interference levels and adjusts carrier aggregation group assignments accordingly. This automated interference management maintains ease of operation while reducing harmful interference effects.
Solution Approach 2:
The patent converts the harmful effect of interference into a useful signal by measuring interference patterns and using them to make intelligent carrier aggregation group assignments, where users are assigned to groups that minimize their exposure to interference, thereby turning the interference information into a benefit for system optimization.
Data Source
AI summary
Methods, media, and systems are provided for carrier aggregation grouping based on user device location. For example, the methods, media, and systems can transmit signals (e.g., Synchronization Signal Block (SSB) transmissions) to various portions of a coverage area. In response, measurement reports received by user equipment (UE) can indicate locations of the UEs within the coverage area. Based on receiving these locations, a first set of component carriers can be allocated for a first carrier aggregation session and a second set of component carriers can be allocated for a second carrier aggregation session, wherein each component carrier of the first set of component carriers is different than each component carrier of the second set of component carriers.