Wireless Device Cell Selection for Multi-Cell Configurations
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Solution Overview
Problem
Conventional camping operations in wireless communication networks do not account for multi-cell configurations, leading to additional delays and increased signaling overhead when a UE connects or reconnects to the network from a dormant state.
Innovation Solution
A wireless device improves its camping cell selection by accounting for multi-cell configurations, prioritizing cells based on combined levels of coverage provided by different combinations of cells, and selecting the camping cell accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of time
If conventional camping operations are used without accounting for multi-cell configurations, then the cell selection process is simpler, but additional delays and increased signaling overhead occur when UE connects or reconnects to the network
Solution Approach 1:
The patent applies preliminary action by having the UE determine combined levels of coverage for different combinations of cells during the dormant state, before actual connection is needed. This pre-calculation of multi-cell configuration coverage levels allows the UE to prioritize cells that can form multi-cell configurations, so when connection is required, the UE can quickly establish the configuration without delays. The coverage level determinations are performed in advance and stored for use during connection establishment.
2Loss of information
If conventional camping operations are used without accounting for multi-cell configurations, then the signaling process is simpler, but increased signaling overhead occurs during network reconnection
Solution Approach 1:
The patent reduces signaling overhead by performing preliminary determination of combined coverage levels and identifying suitable multi-cell configurations during the dormant state. By having this information prepared in advance, the UE can provide measurement reports and configuration preferences to the network with minimal signaling when connection is needed, rather than requiring extensive signaling exchanges to discover and establish multi-cell configurations from scratch.
3Productivity
If the UE prioritizes cells based on combined levels of coverage for multi-cell configurations, then throughput is enhanced and delays are reduced, but the cell selection process becomes more complex
Solution Approach 1:
The patent enables enhanced throughput by performing preliminary analysis of multi-cell configuration coverage levels during dormant state. The UE determines combined coverage levels for different cell combinations, identifies which combinations can form valid multi-cell configurations, and prioritizes cells that can provide such configurations. This pre-computation allows the UE to quickly establish high-throughput multi-cell configurations when connected, without adding significant complexity to the actual data transmission process.
Data Source
AI summary
An example wireless device (12) in a dormant state improves its selection of a camping cell by accounting for multi-cell configurations. Among other things, a multi-cell configuration may improve throughput between a wireless communication network (10) and the wireless device (12), based on the network (10) serving the wireless device (12) from two or more cells (24). By camping on a cell (24) that belongs to a multi-cell configuration that is possible for the wireless device (12), the wireless device (12) reduces the time and signaling needed to establish that multi-cell configuration, upon the wireless device (12) connecting to the network (10) via the camping cell. Accounting for multi-cell configurations may be done jointly, along with accounting for conventional priorities, such as conventionally-prioritized frequencies and Radio Access Technologies (RATs) and may be incorporated into the ranking of cells (24) based on per-cell radio-signal measurements.