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Method and server for determining associations between pools of core network nodes and base stations

A core network node and positioning server technology, applied in location-based services, data exchange networks, instruments, etc., can solve problems such as time-consuming and manual errors

Active Publication Date: 2014-05-07
TELEFON AB LM ERICSSON (PUBL)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, such configuration is time consuming and also susceptible to typing / manual errors

Method used

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  • Method and server for determining associations between pools of core network nodes and base stations
  • Method and server for determining associations between pools of core network nodes and base stations
  • Method and server for determining associations between pools of core network nodes and base stations

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Embodiment Construction

[0034] The invention comprises a method for determining an association or mapping between a plurality of pools 120 , 130 of core network nodes (eg MME) 121 , 131 and base stations (eg eNodeBs) 141 , 151 served by the pools 120 , 130 . The method can be implemented in a location server, for example, E-SMLC 111 .

[0035]An MME pool usually covers a geographically contiguous area and the number of MME pools is usually limited to one mobile public land mobile network PLMN. The method employs a self-learning and self-maintaining algorithm and is based on the property that two base stations (eNodeBs) and cells that are geographically close to each other most likely belong to the same MME pool.

[0036] Without knowledge of certain eNodeB's serving MME pools, the method queries the MME pools in some order where geographical proximity indicates a higher probability of association and the number of unsuccessful queries iteratively minimizes.

[0037] The estimated location of the MME...

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PUM

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Abstract

The present invention relates to positioning in a communication network. In Long Term Evolution, LTE networks the positioning server E-SLMC needs routing information in order to communicate with individual base stations, eNodeBs. For LTE networks configured with one Mobility Management Entity, MME or one pool of MMEs, the routing information can be obtained by interrogating the MME or an arbitrary MME in the MME pool. However, if the network is configured with several MME pools serving different sets of eNodeBs, the E-SLMC has now knowledge of which MME or MME pool that is serving a certain eNodeB. The invention includes a method and a position server (111) configured to quickly determine which MME pool (120,130) is serving a certain eNodeB (141-153) so that the relevant routing information necessary for the positioning server (111) to communicate with the eNodeBs (141-153) is obtained.

Description

technical field [0001] The present invention relates to positioning in a communication network, and in particular to a method and a positioning server for determining an association between a pool of core network nodes and base stations in said network. Background technique [0002] Different telecommunication or data communication services may have different positioning accuracy requirements imposed by the application. Furthermore, some regulatory requirements on location accuracy for essential emergency services exist in some countries, namely FCC E911 in the United States. [0003] In many environments, position can be accurately estimated by using GPS (Global Positioning System) based positioning methods. Now, the network also generally has the possibility to assist the user equipment UE in order to improve terminal receiver sensitivity and GPS enabled performance (eg assisted GPS positioning, or A-GPS). However, GPS or A-GPS receivers may not necessarily be available ...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04W4/02
CPCG01S5/0242H04W64/00H04W4/023
Inventor A.布辛张扬
Owner TELEFON AB LM ERICSSON (PUBL)