Communications Resource Grouping for Flexible Carrier Aggregation
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Solution Overview
Problem
Current communications systems, such as 3GPP LTE, face challenges in efficiently managing carrier aggregation (CA) and coordinated multiple point (CoMP) operations due to the requirement of a fast backhaul connection, which limits flexibility and complexity in resource management.
Innovation Solution
The system configures communications system resources into groups based on backhaul characteristics, allowing for flexible operation and simplified management of CA and CoMP without the need for a fast backhaul, by signaling information about these resource groups to user equipment (UE) for effective feedback transmission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If carrier aggregation and coordinated multiple point operations are implemented in current communications systems, then communications performance is improved, but the requirement for fast backhaul connection increases system complexity and reduces flexibility
Solution Approach 1:
The patent segments communications system resources into multiple resource groups, where each group is associated with a specific transmission point and can be independently configured and managed. This segmentation allows the system to handle CA and CoMP operations without requiring complex fast backhaul connections, as each resource group can be managed autonomously by its associated transmission point.
Solution Approach 2:
The patent introduces dynamic resource group configuration where the network can flexibly assign and reassign communications resources to different transmission points based on current system conditions. This dynamic approach enables the system to adapt to varying backhaul conditions without being constrained by fixed fast backhaul requirements, thereby reducing system complexity while maintaining performance.
2Reliability
If carrier aggregation and coordinated multiple point operations are implemented, then communications performance is improved, but flexibility in resource management is reduced due to fast backhaul requirements
Solution Approach 1:
By dividing communications resources into independent resource groups associated with specific transmission points, the system gains flexibility in managing each group separately. This segmentation removes the rigid fast backhaul constraint, allowing flexible resource allocation and management across different transmission points based on actual communication needs rather than backhaul capabilities.
Solution Approach 2:
The patent changes the system parameters by introducing resource group configurations that are independent of backhaul speed requirements. This parameter change enables the system to maintain high communications performance while adapting resource management to various backhaul conditions, thereby increasing flexibility and versatility in resource allocation.
3Reliability
If fast backhaul connection is required for CA and CoMP operations, then communications performance is improved, but hardware and software complexity in network devices increases
Solution Approach 1:
The patent segments the network architecture into independent resource groups that can be managed locally at each transmission point without requiring complex fast backhaul processing. This segmentation simplifies hardware and software requirements by eliminating the need for high-speed synchronization and coordination mechanisms, while still enabling CA and CoMP operations through independent resource group management.
Solution Approach 2:
Each transmission point is empowered to independently manage its associated resource groups without requiring complex coordination through fast backhaul connections. This self-service approach reduces hardware and software complexity by eliminating the need for sophisticated inter-node communication and coordination mechanisms, while maintaining communications performance through autonomous resource management.
Data Source
AI summary
A method for multiple point communications includes configuring a set of first communications system resources to form a plurality of first communications system resource groups, each first communications system resource group including a plurality of channels, and configuring a set of second communications system resources for each one of the plurality of first communications system resource groups, the set of second communications system resources used to convey a feedback transmission. The method also includes signaling information about the plurality of first communications system resource groups to a first user equipment, and signaling information about the sets of second communications system resources associated with the plurality of first communications system resource groups to the first user equipment.