# US 8,543,137 B2 · Method for providing location based services

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- Number: US 8,543,137 B2
- Document ID: US8543137B2
- Status: Granted
- Kind: B2
- Application number: 13/584,234
- Filed: 2012-08-13
- Published: 2013-02-21
- Granted: 2013-09-24
- Earliest claimed: 2012-08-13
- Assignees: Telefonaktiebolaget L M Ericsson (publ)
- Applicants: Åke Busin; Hui Yang
- Inventors: Åke Busin; Hui Yang
- Web page: https://patentgrep.com/patent/US8543137B2

## CPC

- H04W 64/00: Locating users or terminals {or network equipment} for network management purposes, e.g. mobility management
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

The present invention relates to a method for providing location based services for a client in an infrastructure network. The network comprises at least one Home Subscriber Server, HSS, at least one Mobility Management Entity, MME, and at least one Gateway Mobile Location Centre, GMLC, for the client. The GMLC sending an UE location service response to the client based on a UE location service request received from the client. The network performs the steps of: (A) the GMLC continuously receives and stores event reports streamed from the MME(s), the reports comprising information about the MME identity and identities for UE(s) served by said MME; (B) the GMLC determines the identity of a serving MME for the UE in the UE location service request on the basis of the information in the event reports.

## Claims

### Claim 1

A method for providing location based services for a client in an infrastructure network, the network comprising at least one Home Subscriber Server, HSS, at least one Mobility Management Entity, MME, and at least one Gateway Mobile Location Centre, GMLC, for the client, comprising the steps of:
the GMLC receiving a UE location service request from the client,
the GMLC receiving and storing event reports streamed from the MME, the reports comprising information about the MME identity and identities for a UE served by said MME,
the GMLC determining the identity of a serving MME for a UE in the UE location service request on the basis of the information in the event reports, and
the GMLC sending a UE location service response to the client.

### Claim 2 (depends on 1)

The method according to claim 1, wherein the UE identity in the event reports consists in Mobile Station International Subscriber Directory Number, MSISDN, International Mobile Subscriber Identity, IMSI, or International Mobile Equipment Identity, IMEI.

### Claim 3 (depends on 1)

The method according to claim 1, wherein the UE identity in the UE location request consists in Mobile Station International Subscriber Directory Number, MSISDN.

### Claim 4 (depends on 1)

The method according to claim 1, wherein the MME is configured to stream the event reports to the GMLC.

### Claim 5 (depends on 1)

The method according to claim 1, wherein the GMLC continuously updates the stored event reports based on the latest received event reports.

### Claim 6 (depends on 1)

The method according to claim 1, wherein the event reports comprise information about the timestamp for each UE identity and serving cell identities.

### Claim 7 (depends on 1)

The method according to claim 1, wherein the GMLC when receiving the UE location service request sends a UE location request to the identified serving MME with information about the UE in the UE location service request, the MME providing the location of the UE to the GMLC in response to said UE location request.

### Claim 8 (depends on 1)

The method according to claim 1, wherein the GMLC determines the identity of the serving MME when receiving a location service request from the client.

### Claim 9 (depends on 1)

The method according to claim 1, wherein the GMLC derives an MME diameter name based on the determined identity of the serving MME.

### Claim 10

A gateway mobile location centre, GMLC, adapted for providing location based services for a client in an infrastructure network, the network comprising at least one Home Subscriber Server, HSS, at least one Mobility Management Entity, MME, and at least one GMLC, for the client, the GMLC being adapted to send an UE location service response to the client based on a UE location service request received from the client, wherein
the GMLC is adapted to continuously receive and store event reports streamed from the MME(s), the reports comprising information about the MME identity and identities for UE(s) served by said MME, and
the GMLC is further adapted to determine the identity of a serving MME for the UE in the UE location service request on the basis of the information in the event reports.

### Claim 11 (depends on 10)

The GMLC according to claim 10, wherein the GMLC is adapted to continuously update the stored event reports based on the latest received event reports.

### Claim 12 (depends on 10)

The GMLC according to claim 10, wherein the GMLC, when receiving the UE location service request, is adapted to provide a location request to the identified serving MME with information about the UE in the UE location service request.

### Claim 13 (depends on 10)

The GMLC according to claim 10, wherein the GMLC is adapted to determine the identity of the serving MME when receiving a location service request from the client.

### Claim 14 (depends on 10)

The GMLC according to claim 10, wherein the GMLC is adapted to derive an MME diameter name based on the determined identity of the serving MME.