UE 1d Event Reporting on Secondary Frequency
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Solution Overview
Problem
In HSDPA environments, User Equipment (UE) cannot report 1d events or other 1x events on a secondary frequency, limiting network handover operations and throughput performance in heterogeneous networks.
Innovation Solution
The UE is equipped with a method to obtain information about the best cell on a secondary frequency and a list of cells with the same frequency, allowing it to report 1d events to the network device when conditions are met, enabling network handover and improving throughput by configuring operations like DF-3C or SF-DC.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If UE performs multiflow transmission on secondary frequency, then downlink throughput is improved, but UE cannot report 1d events on secondary frequency
Solution Approach 1:
The patent segments the event reporting function by introducing separate event types (1x events and 2x events) for different frequencies. The UE independently manages 1d event reporting for the primary frequency and 2x event reporting for the secondary frequency, allowing simultaneous multiflow transmission and event reporting without interference between frequency layers.
Solution Approach 2:
The patent introduces a 2x event as an intermediary mechanism specifically for secondary frequency reporting. This intermediary event type bridges the gap between the existing 1x event system and the need for secondary frequency monitoring, enabling the network to receive cell quality information from secondary frequencies without disrupting the primary frequency's event reporting.
2Adaptability or versatility
If UE reports 1d event on secondary frequency, then network handover capability is improved, but device complexity increases
Solution Approach 1:
The patent divides event management into separate segments: 1x events for primary frequency and 2x events for secondary frequency. Each event type has its own triggering conditions, reporting mechanisms, and network handling procedures, reducing the complexity of managing events across multiple frequencies simultaneously.
Solution Approach 2:
The patent implements dynamic event reporting where the UE adapts its reporting behavior based on the serving frequency. When operating on primary frequency, 1x events are reported; when on secondary frequency, 2x events are reported. This dynamic adaptation simplifies device logic compared to a static universal reporting mechanism.
Data Source
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AI summary
The present invention relates to the field of communications technologies, and in particular, to an information reporting method, an information receiving method, UE, and a network device, which are used to solve a technical problem in the prior art that in an HSDPA environment, UE cannot report, on a secondary frequency, a 1d event for a cell. In embodiments of the present invention, the UE may first obtain information about a best cell on a secondary frequency and a list of information about cells whose frequency is the same as the secondary frequency, and the UE may measure a cell on the secondary frequency, compare information about the cell with the information about the best cell on the secondary frequency, and determine, according to a comparison result, whether to report a 1d event, thereby effectively solving the technical problem in the prior art that in an HSDPA environment, the UE cannot report, on a secondary frequency, a 1d event for a cell.