Cell Selection for Multi-Card Terminals via Base Station Capability Exchange
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Solution Overview
Problem
Multi-card terminals face various issues such as monitoring conflicts, paging collisions, resource wastage, and service disruptions due to lack of unified standards and efficient cell selection methods, leading to suboptimal communication performance and resource utilization in multi-card environments.
Innovation Solution
A cell selection method and apparatus that involve acquiring and sending target capability information between base stations to enable multi-card terminals to perform flexible cell selection based on the capability to solve multi-card problems, using broadcast or unicast signaling to communicate this information and facilitate optimal handover decisions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multi-card terminals use dual-card dual-standby dual-pass or other processing methods, then communication coverage is improved, but monitoring conflicts and paging collisions occur leading to resource wastage
Solution Approach 1:
The base station performs preliminary actions by acquiring and broadcasting capability information about neighbor base stations' ability to handle multi-card terminals before the terminal performs cell selection. This advance preparation allows the terminal to proactively choose base stations that can prevent monitoring conflicts and paging collisions, thereby improving communication coverage while avoiding resource wastage associated with these problems.
2Adaptability or versatility
If various terminal manufacturers implement different processing methods for multi-card terminals, then device functionality is enhanced, but unified standardization is lost leading to inconsistent terminal behaviors
Solution Approach 1:
The patent establishes a universal solution by defining a standardized capability information exchange mechanism between base stations and multi-card terminals. The capability information structure and cell selection method can be universally applied across different terminal types and manufacturers, enabling consistent handling of multi-card terminals while preserving their diverse functionalities. This standardization reduces system complexity by providing a unified framework that works across different implementations.
3Device complexity
If base stations do not exchange capability information, then network simplicity is maintained, but multi-card terminals cannot perform optimal cell selection leading to service disruptions
Solution Approach 1:
The patent introduces capability information as an intermediary element that mediates between network simplicity and service reliability. This information structure acts as a lightweight mediator that enables base stations to communicate their multi-card handling capabilities without requiring complex coordination protocols. The capability information is broadcast once and can be reused by multiple terminals, maintaining network simplicity while enabling reliable cell selection for service continuity.
Data Source
AI summary
A cell selection method includes: acquiring target capability information corresponding to at least one neighbor base station, wherein the target capability information indicates the capability to solve a problem of multiple cards of a multi-card terminal; and sending the target capability information corresponding to the at least one neighbor base station.