Wireless Load Contribution Distribution for Secondary Cell Balancing
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Solution Overview
Problem
Current wireless communication systems using LTE technology do not accurately account for load contributions from secondary cells, leading to incorrect load balancing and potential performance issues, as they primarily consider primary cell load, neglecting secondary cell usage which can result in inappropriate offloading and deactivation decisions.
Innovation Solution
A method and network entity that receive and compile information on both primary and secondary cell usage, enabling the consideration of secondary cell load for load distribution decisions, thereby improving load balancing accuracy and avoiding performance issues by accurately representing total cell usage and configuring cells based on comprehensive load metrics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If only primary cell load is considered for load balancing decisions, then the load balancing mechanism is simple to implement, but the load balancing accuracy deteriorates due to neglecting secondary cell usage
Solution Approach 1:
The patent segments the load contribution calculation by separating primary cell usage and secondary cell usage into distinct components. Each cell's total load is calculated as the sum of primary cell load and secondary cell load contributions, allowing independent measurement and aggregation of different load sources to achieve comprehensive load balancing accuracy
Solution Approach 2:
The patent introduces an intermediary load contribution calculation mechanism that aggregates secondary cell usage information from multiple cells. This intermediary layer processes and sums the load contributions before presenting the total load to the load balancing decision maker, enabling accurate load representation without directly complicating the core load balancing logic
2Loss of information
If secondary cell usage information is collected and processed, then the total cell usage representation improves, but the information processing complexity increases
Solution Approach 1:
The patent merges the collection and processing of secondary cell usage information into a unified load contribution calculation framework. By combining primary and secondary cell load measurements through a standardized aggregation process, the system achieves complete total cell usage representation while avoiding redundant processing steps
Solution Approach 2:
The load contribution calculation mechanism automatically aggregates secondary cell usage information from available measurements without requiring external intervention. The system self-services by summing the load contributions based on pre-collected usage data, reducing the need for additional complex information gathering infrastructure
3Reliability
If comprehensive load metrics including secondary cell load are used, then offloading and deactivation decisions improve, but the decision-making complexity increases
Solution Approach 1:
The patent performs preliminary calculation of total cell usage by aggregating primary and secondary cell load contributions before the load balancing decision is made. This pre-computation of comprehensive load metrics provides ready-to-use accurate load information, simplifying the subsequent offloading and deactivation decisions rather than complicating them
Data Source
AI summary
The present disclosure presents a method and a network entity for load contribution distribution in a wireless communication system supporting component carrier communication. The network entity serves a first cell of a wireless communication system. The method comprises receiving (61) information on one or more secondary cell usages of the first cell, wherein a secondary cell usage represents a secondary component carrier load of a wireless device connected to a primary cell of one or more further cells which are different from the first cell. The information on primary cell usage and the one or more secondary cell usage for the first cell is compiled (62) in the network entity. The method further comprises identifying (63) the respective primary cell for each secondary cell usage. Finally it comprises sending (64) secondary cell usage information to a respective network entity serving the identified respective primary cell for each secondary cell usage.