Indoor Small Base Station Access Control for Legacy UE Selection
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Solution Overview
Problem
Existing mobile communication technologies face challenges in providing efficient indoor coverage and managing access control for indoor small base stations, particularly in residential areas, where legacy UEs may unintentionally access these stations, leading to cell selection and initial access issues, and there is a need to identify and manage different UE types for unified access control.
Innovation Solution
Implementing a wireless communication method that includes identifying indoor small base stations through unique identifiers, managing access control by barring unsupported UEs, and determining UE types based on authentication results to ensure proper network integration and congestion management.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If indoor small base stations are deployed to provide indoor coverage, then network coverage is improved, but legacy UEs may unintentionally access these stations causing cell selection issues
Solution Approach 1:
The patent applies preliminary action by configuring the indoor small base station to broadcast specific system information (such as SIB1) before legacy UEs attempt to access the network. This system information includes identification indicators that pre-notify compatible UEs of the indoor base station's capabilities, allowing them to make informed cell selection decisions before establishing connections, thereby preventing unwanted access by legacy devices.
Solution Approach 2:
The patent implements local quality by differentiating the system information broadcast by indoor small base stations from that of macro base stations. Indoor base stations transmit specific identification indicators (e.g., in SIB1) that are locally unique to indoor deployments, enabling UEs to distinguish between indoor and outdoor base stations based on these localized characteristics, thus resolving cell selection conflicts.
2Productivity
If access control is implemented for indoor small base stations, then network efficiency is improved, but device complexity increases
Solution Approach 1:
The patent applies self-service by enabling UEs to autonomously determine compatibility with indoor small base stations through local processing of system information. Each UE independently evaluates the identification indicators broadcast by the base station against its own capabilities, making self-determined access decisions without requiring complex centralized management or additional authentication overhead, thus achieving efficient access control with minimal system complexity.
Solution Approach 2:
The patent implements parameter changes by modifying the system information parameters broadcast by indoor small base stations to include specific identification indicators (such as indoor base station type, supported UE categories, and access conditions). These parameter changes enable UEs to efficiently evaluate compatibility through simple parameter comparison rather than complex protocol exchanges, achieving effective access control with low implementation complexity.
3Reliability
If UE type identification is implemented, then access control is improved, but information processing complexity increases
Solution Approach 1:
The patent applies segmentation by dividing the UE type identification process into discrete, manageable components. The system information is segmented into specific identification indicators (e.g., indoor base station indicator, UE category support indicator), and UE capabilities are segmented into corresponding selection criteria. This segmentation allows UEs to process access control information through simple indicator matching rather than complex holistic analysis, maintaining high identification reliability with low processing complexity.
Data Source
AI summary
This patent document describes, among other things, techniques, and apparatuses for providing a residential gateway and/or indoor base station to improve wireless network efficiency and performance. In one aspect, a method of wireless communication is disclosed. The method includes receiving, at a wireless device from a base station, base station information comprising an identifier, wherein the base station information indicates that the base station is an indoor small base station. The method further includes determining, at the wireless device, whether the indoor small base station can be accessed based on the identifier. The method includes triggering, by the wireless device, a registration procedure or a service request procedure with a network based on the identifier.