# US 2014/0155072 A1 · Method for operating a mobile terminal in a cellular communication network and a mobile terminal, a device of a communication network, and a system for executing the method

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- Number: US 2014/0155072 A1
- Document ID: US20140155072A1
- Status: Published application
- Kind: A1
- Application number: 13/911,440
- Filed: 2013-06-06
- Published: 2014-06-05
- Earliest claimed: 2012-06-06
- Assignees: Vodafone Holding GmbH
- Applicants: Vodafone Holding GmbH
- Inventors: Christoph Hellmann
- Web page: https://patentgrep.com/patent/US20140155072A1

## CPC

- H04W 36/00837: {Determination of triggering parameters for hand-off}
- H04W 36/322: {by location data}
- H04W 36/008375: {based on historical data}
- H04W: WIRELESS COMMUNICATION NETWORKS (broadcast communication H04H; communication systems using wireless links for non-selective communication, e.g. wireless extensions H04M1/72)

## Abstract

A method is provided for operating a mobile terminal operable in at least one communication network for a change of connection in a communication network. The method includes evaluating an information item regarding the local position of the mobile terminal in a service area of a radio cell of a first type with regard to an entry of the mobile terminal into the service area of a radio cell of the first type, which entry is to be expected within a predefined time interval. The method also includes suppressing a change of connection of the mobile terminal to a radio cell of a second type if, based on the result of the evaluation, the entry of the mobile terminal into the service area of the radio cell of the first type can be expected within the predefined time interval.

## Claims

### Claim 1

Method for operating a mobile terminal operable in at least one communication network for a change of connection in a communication network, wherein radio cells of a first type and radio cells of a second type are formed by at least one communication network, comprising the following steps:
evaluating an information item regarding the local position of the mobile terminal in a service area of a radio cell of the first type with regard to an entry of the mobile terminal into the service area of a radio cell of the first type, which entry is to be expected within a predefined time interval; and
suppressing a change of connection of the mobile terminal to a radio cell of the second type if, based on the result of the evaluation, the entry of the mobile terminal into the service area of the radio cell of the first type can be expected within the predefined time interval.

### Claim 2 (depends on 1)

Method in accordance with claim 1, characterised in that the suppression of the change of connection to a radio cell of the second type is initiated by the mobile terminal.

### Claim 3 (depends on 1)

Method in accordance with claim 1, characterised in that the period of the predetermined time interval is between 10 and 30 seconds, between 5 and 40 seconds, or between 1 and 60 seconds.

### Claim 4 (depends on 1)

Method in accordance with claim 1, characterised in that the period of the predefined time interval is shorter than the time interval required for a change of connection from a radio cell of the first type to a radio cell of the second type.

### Claim 5 (depends on 1)

Method according to the claim 1, characterised in that within the scope of evaluation, a probable value for entry into the service area of a radio cell of the first type is determined, the determined probable value is compared with a predefined limiting value, and a change of connection to a radio cell of the second type is suppressed if the limiting value is exceeded in order to enable the mobile terminal to set up a connection with a radio cell of the first type within the predefined time interval.

### Claim 6 (depends on 1)

Method according to claim 1, characterised in that a change of connection to a radio cell of the second type is suppressed for another predefined time interval.

### Claim 7 (depends on 1)

Method according to claim 1, characterised in that a data connection in a radio cell of the first type provides a greater bandwidth than a data connection in a radio cell of the second type.

### Claim 8 (depends on 1)

Method according to claim 1, characterised in that the evaluation is performed using location-related information items with regard to the service areas of radio cells of the first type, wherein the location-related information items with regard to the service areas of radio cells of the first type comprise information items regarding location-related cell boundaries of the radio cells of the first type.

### Claim 9 (depends on 8)

Method according to claim 8, characterised in that the location-related information items regarding the service areas of radio cells of the first type are provided, at least partly, by a storage device of the at least one communication network and/or by a storage device of the mobile terminal.

### Claim 10 (depends on 8)

Method according to claim 8, characterised in that information items allocated to the location area of a mobile terminal which information items relate to an entry into the service area of a radio cell of the first type are recorded by the mobile terminal and/or by the at least one communication network as further location-related information items with regard to the service areas of radio cells of the first type.

### Claim 11 (depends on 10)

Method according to claim 10, characterised in that the recorded information items comprise information items allocated to a location area with regard to the signal quality of a radio cell of the first type.

### Claim 12 (depends on 10)

Method according to claim 10, characterised in that the recorded information items are added to the location-related information items regarding the service areas of radio cells of the first type provided by the storage device of the at least one communication network and/or by the storage device of the mobile terminal, or that already available location-related information items regarding the service area of radio cells of the first type are adjusted, taking the recorded information items into account.

### Claim 13 (depends on 8)

Method according to claim 8, characterised in that modifications in relation to location-related information items regarding the service areas of radio cells of the first type are at least partly automatically taken into account in the evaluation and/or definition of the time interval.

### Claim 14 (depends on 8)

Method according to claim 8, characterised in that at least the location-related information items regarding the service areas of radio cells of the first type are synchronised between the at least one communication network and the mobile terminal.

### Claim 15 (depends on 1)

Method according to claim 1, characterised in that the information items regarding the local position of the mobile terminal comprise at least information items with regard to the current local position of the mobile terminal, with regard to the current direction into which the mobile terminal is changing its local position, with regard to the current velocity by which the mobile terminal is changing its local position, and/or past information items with regard to the local position, direction, and/or velocity.

### Claim 16 (depends on 1)

Mobile terminal for operation in at least one communication network, wherein radio cells of a first type and radio cells of a second type are formed by the at least one communication network, characterised by means for carrying out a method according to claim 1.

### Claim 17 (depends on 16)

Mobile terminal according to claim 16, characterised by an evaluation unit for evaluating an information item regarding the local position of the mobile terminal in a service area of a radio cell of the first type with regard to an entry of the mobile terminal into the service area of a radio cell of the first type, which entry is to be expected within a predefined time interval.

### Claim 18 (depends on 17)

Mobile terminal according to claim 17, characterised by a suppression unit for suppressing a change of connection of the mobile terminal to a radio cell of the second type.

### Claim 19 (depends on 1)

Device in a communication network, in particular network nodes in a mobile radio network, wherein radio cells of a first type and radio cells of a second type are formed by the communication network and/or by at least one other communication network, characterised by means for executing a method according to claim 1.

### Claim 20 (depends on 19)

Device according to claim 19, characterised by an evaluation unit for evaluating an information item regarding the local position of the mobile terminal in a service area of a radio cell of the first type with regard to an entry of the mobile terminal into the service area of a radio cell of the first type, which entry is to be expected within a predefined time interval.

### Claim 21 (depends on 19)

Device according to claim 19, characterised by a suppression unit for suppressing a change of connection of the mobile terminal to a radio cell of the second type.

### Claim 22 (depends on 1)

A system comprising at least one device of a communication network, in particular network nodes of a mobile radio network, and a mobile terminal for operation in a communication network, in particular in a mobile radio network, wherein the at least one device of the communication network and the mobile terminal are configured to exchange information with each other, characterised in that the system is configured to execute a method according to claim 1.
