Pre-stored Cell Antenna Location Data for Accurate UE Positioning
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Solution Overview
Problem
The current CELL ID+TA+AOA positioning scheme in LTE systems lacks methods to acquire servicing cell location information, hindering accurate UE location calculation.
Innovation Solution
Pre-storing cell antenna location information, including longitude, latitude, and altitude, in network-side devices like eNodeB, MME, or E-SMLC, and using protocols like LPPa, S1AP, or LCSAP to facilitate the acquisition and dissemination of this information for accurate UE positioning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If CELL ID+TA+AOA positioning scheme is used, then positioning functionality is provided, but cell location information is unavailable for accurate UE location calculation
Solution Approach 1:
The patent applies preliminary action by pre-obtaining and storing cell location information (latitude, longitude, altitude) in the E-SMLC before positioning operations are needed. This allows the positioning system to have immediate access to cell location data when performing UE location calculations, eliminating the information gap that previously prevented accurate positioning.
2Measurement precision
If cell antenna location information is pre-stored in network devices, then positioning accuracy is improved, but system complexity increases
Solution Approach 1:
The patent introduces an intermediary mechanism by having the O&M system serve as a mediator that collects, manages, and distributes cell location information to network devices (eNodeB, MME, E-SMLC). This intermediary approach simplifies the complexity by centralizing the configuration management function, rather than requiring each network device to independently acquire and manage cell location data.
3Adaptability or versatility
If multiple protocols (LPPa, S1AP, LCSAP) are used for information dissemination, then information acquisition flexibility is improved, but implementation complexity increases
Solution Approach 1:
The patent applies universality by designing the positioning system to support multiple protocols (LPPa, S1AP, LCSAP) for information dissemination between network devices and E-SMLC. This multi-functional approach allows the system to adapt to different deployment scenarios and network configurations, where each protocol can be used depending on the specific network architecture and requirements, thereby improving overall system versatility.
Data Source
AI summary
A method, a system and an apparatus for acquiring cell location information are disclosed in the embodiments of the present invention. The method includes the following steps: a serving mobile location center acquires the cell antenna location information from a network-side device; the serving mobile location center implements the positioning operation according to the cell antenna location information. In the present invention, the cell antenna location information comprising the information of the longitude, the latitude and the altitude and the like is pre-stored in the evolved Node B (eNodeB), Mobility Management Entity (MME) or Evolved Serving Mobile Location Center (E-SMLC), then according to network planning, the Operation and Maintenance (O&M) beforehand completes the configuration operation of the antenna location information of all the cell in the serving region, thereby further the various kinds of the current positioning technical schemes are improved.