1. Method for dialling a service in a mobile telecommunication network, comprising the following steps:
entering a desired call into a mobile user equipment,
mapping the desired call into a service identifier in the mobile user equipment,
transmitting the service identifier from the mobile user equipment to a node of the telecommunication network,
mapping the service identifier into a dialling number in the node of the telecommunication network,
setting up a call to the service allocated to the dialling number,
detecting that the mobile user equipment has switched to a visited telecommunication network, and
increasing the set of character strings stored in the mobile user equipment by the character strings that are used in the visited telecommunication network for dialling services.
2. Method according to claim 1, with the additional steps of
detecting that the mobile user equipment switched from the visited telecommunication network, and
reducing the set of character strings stored in the mobile user equipment by the character strings that are used in the left visited telecommunication network for dialling services.
3. Method according to claim 1 or 2, wherein the input of the desired call is done by entering a character string into the mobile user equipment, and wherein a comparison of the entered character string with pre-defined character strings is performed, and if the entered character string corresponds to a pre-defined character string the desired call is mapped into the service identifier and the service identifier allocated to said character string is determined.
4. Method according to one of claims 1 to 3, wherein pre-defined character strings are stored on a subscriber identification card.
5. Method according to one of claims 1 to 4, wherein the node of the telecommunication network is a control node of a core network of the telecommunication network.
6. Method according to one of claims 1 to 5, wherein an identification of the calling subscriber is transmitted and wherein a preferred language for the dialled service is determined by means of the identification of the calling subscriber.
7. Method according to one of claims 1 to 6, wherein a language indicator is additionally transmitted from the mobile user equipment to the node and a preferred language is determined for the dialled service by means of the language indicator.
8. Method according to one of claims 1 to 7, wherein the dialled service is an emergency call service.
9. Mobile user equipment comprising
a unit for entering a desired call,
a memory for storing a service identifier,
a processing unit for mapping the desired call into a service identifier allocated to the desired call,
a sending unit for sending the allocated service identifier,
a storage for storing character strings used for dialling services, and
a means for increasing the set of character strings stored in said storage by character strings used in a visited telecommunication network for dialling services.
10. Mobile user equipment according to claim 9, comprising means for reducing a stored set of character strings by character strings used in a visited telecommunication network for dialling services, if the mobile user equipment leaves the visited telecommunication network.
11. Mobile user equipment according to claim 9 or 10, wherein character strings are allocated to service identifiers.
12. Node for a telecommunication network, comprising
a receiving unit for receiving a service identifier,
a memory for storing a dialling number,
a processing unit for mapping the service identifier into a dialling number allocated to the service identifier,
means for setting up a call to the service allocated to the dialling number, and
means for updating a set of character strings used for dialling services stored in a mobile user equipment.
13. Node according to claim 12, comprising
means for recognising a language indicator, and
means for allocating dialling numbers to the language indicator.
14. Node according to claim 12, comprising
means for determining a country code of a home telecommunication network of a , and
means for allocating dialling numbers to a country code.
15. Use of the method according to claim 1, wherein the mobile telecommunication network is a GSM (Global System for Mobile Communication) network.
16. Use of the method according to claim 1, wherein the mobile telecommunication network is a UMTS (Universal Mobile Telecommunication System) network.
17. Computer program stored on a computer-readable medium realising a method according to one of claims 1 to 8.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A method for handover using a handover (HO) candidate set, comprising:
receiving measurement statistic parameters;
measuring statistics in a serving cell;
measuring statistics in potential target cells;
generating the HO candidate set based upon the measured statistics in the serving cell and potential target cells;
reporting the measured statistics; and
handing over to one of the potential target cells, wherein a decision to handover to the one of the potential target cells is based upon the measured statistics of the cells in the HO candidate set.
2. The method of claim 1, further comprising adding a potential target cell to the HO candidate set based upon a handover threshold statistic being greater than or equal to a handover threshold.
3. The method of claim 2, further comprising dropping a cell from the HO candidate set.
4. The method of claim 3 wherein the cell dropped from the HO candidate set is a cell having a lowest measurement statistic.
5. The method of claim 4 wherein a cell having a longest history in the HO candidate set of a plurality of cells in the HO candidate set is dropped, wherein the plurality of cells have the same lowest measurement statistic.
6. The method of claim 1, further comprising adding the serving cell to the HO candidate set.
7. The method of claim 1 wherein reporting the measured statistics included reporting cells added or dropped from the HO candidate set.
8. The method of claim 1, further comprising creating a priority list containing cells for measurements.
9. The method of claim 8 wherein cells in the priority list are measured at a different interval than cells not in the priority list.
10. The method of claim 8 wherein a cell is added to the priority list when it is measured above the handover threshold.
11. The method of claim 8 wherein a cell is added to the priority list when it is measured above the handover threshold and has a stronger measurement over a number of measurements.
12. The method of claim 8 wherein a cell is dropped from the priority list if it is measured below the handover threshold over a number of measurements.
13. A wireless transmitreceive unit (WTRU), comprising:
a receiver;
a transmitter; and
a processor in communication with the receiver and the transmitter, the processor configured to receive measurement statistic parameters, measure statistics in a serving cell, measure statistics in potential target cells, generate a HO candidate set based upon the measured statistics in the serving cell and potential target cells, report the measured statistics, and hand over to one of the potential target cells, wherein a decision to handover to the one of the potential target cells is based upon the measured statistics of the cells in the HO candidate set.
14. The WTRU of claim 13 wherein the processor is further configured to add a cell to the HO candidate set.
15. The WTRU of claim 14 wherein the processor adds a cell to the HO candidate set when the cell has a measurement greater than or equal to a handover threshold.
16. The WTRU of claim 13 wherein the processor is further configured to remove a cell from the HO candidate set.
17. The WTRU of claim 16 wherein the processor removes a cell from the HO candidate set having a measurement less than the handover threshold.
18. A Node-B, comprising:
a receiver;
a transmitter; and
a processor in communication with the receiver and the transmitter, the processor configured to transmit a measurement control signal that includes handover measurement parameters, receive a measurement report signal including a report of measurements of statistics in potential target cells for handover, determine a cell for handover, and transmit a handover command that indicates a cell for a wireless transmitreceive unit (WTRU) to handover.
19. The Node-B of claim 18 wherein the processor is further configured to perform a candidate query to determine a potential target cell for handover.
20. The Node-B of claim 19 wherein the processor is further configured to query an inter-eNB measurement database to gather the status of each candidate cell.
21. The Node-B of claim 19 wherein the processor is further configured to query each candidate cell for its handover acceptance status.