Establishment of a connection in radio communication systems
View Patent ↗In a method for establishment of a connection in a radio communication system, a user terminal selects an operator, based on information on at least one operator of a radio communication system in a country-specific pilot channel, selects a radio communication system based on information on at least one radio communication system in an operator-specific pilot channel for the selected operator and carries out an access to the selected radio communication system for establishment of a connection.
1. A method for establishing a connection with a terminal in a radio communication system, comprising:
selecting an operator at the terminal based on operator information transmitted in a country-specific pilot channel, the operator information relating to at least one operator of a radio communication system;
selecting a radio communication system based on system information transmitted in an operator-specific pilot channel of the selected operator, the system information relating to at least one radio communication system; and
accessing the selected radio communication system to establish the connection, wherein
the terminal is located within a coverage area of the selected operator,
the selected operator maintains a roaming agreement with at least one agreement operator outside the coverage area, and
information on the agreement operator and the roaming agreement is transmitted in the country-specific pilot channel.
2. The method as claimed in claim 1 , wherein a reference to the operator-specific pilot channel is transmitted in the country-specific pilot channel.
3. The method as claimed in claim 1 , wherein a reference to a system-specific pilot channel of the selected radio communication system is transmitted in the operator-specific pilot channel.
4. The method as claimed in claim 1 , wherein the country-specific pilot channel is sent out by a radio access device of the selected radio communication system and/or a broadcast transmitting station of a public broadcasting system.
5. The method as claimed in claim 1 , wherein information on a system-specific configuration of the terminal is transmitted in the operator-specific pilot channel.
6. The method as claimed in claim 3 , wherein the system-specific pilot channel comprises at least one of a synchronization channel and a control channel.
7. The method as claimed in claim 3 , wherein the operator-specific pilot channel and the system-specific pilot channel are sent out by a radio access device of the selected radio communication system.
8. The method as claimed in claim 1 , wherein the information on the agreement operator and the roaming agreement is transmitted in specific frames within a sequence of frames of the country-specific pilot channel.
9. The method as claimed in claim 2 , wherein a reference to a system-specific pilot channel of the selected radio communication system is transmitted in the operator-specific pilot channel.
10. The method as claimed in claim 9 , wherein the system-specific pilot channel comprises at least one of a synchronization channel and a control channel.
11. The method as claimed in claim 10 , wherein the operator-specific pilot channel and the system-specific pilot channel are sent out by a radio access device of the selected radio communication system.
12. The method as claimed in claim 11 , wherein the country-specific pilot channel is sent out by a radio access device of the selected radio communication system and/or a broadcast transmitting station of a public broadcasting system.
13. The method as claimed in claim 12 , wherein
the terminal is located within a coverage area of the selected operator,
the selected operator maintains a roaming agreement with at least one agreement operator outside the coverage area, and
information on the agreement operator and the roaming agreement is transmitted in the country-specific pilot channel.
14. The method as claimed in claim 13 , wherein the information on the agreement operator and the roaming agreement is transmitted in specific frames within a sequence of frames of the country-specific pilot channel.
15. The method as claimed in claim 14 , wherein information on a system-specific configuration of the terminal is transmitted in the operator-specific pilot channel.
16. A method for operating radio communication systems, comprising:
transmitting signals of a country-specific pilot channel from a radio access device, the signals carrying information on local operators of respective radio communication systems;
transmitting an operator-specific pilot channel from the radio access device, the operator-specific pilot channel carrying information on one of the local operators; and
transmitting a system-specific pilot channel from the radio access device, the system-specific pilot channel carrying information on a first of the radio communication systems, the radio access device being part of the first radio communication system, wherein
a terminal is located within a coverage area of a selected operator,
the selected operator maintains a roaming agreement with at least one agreement operator outside the coverage area, and
information on the agreement operator and the roaming agreement is transmitted in the country-specific pilot channel.
17. A radio communication system having a radio access device, comprising:
a transmitting device to transmit:
signals of a country-specific pilot channel, the signals carrying information on local operators of respective different radio communication systems;
an operator-specific pilot channel carrying information on the different radio communication systems; and
a system-specific pilot channel carrying information specific to the radio communication system of the radio access device, wherein
a terminal is located within a coverage area of a selected operator,
the selected operator maintains a roaming agreement with at least one agreement operator outside the coverage area, and
information on the agreement operator and the roaming agreement is transmitted in the country-specific pilot channel.
18. A user terminal comprising:
a receiver to receive a country-specific pilot channel, an operator-specific pilot channel and a system-specific pilot channel;
an evaluating device to evaluate information from the country-specific pilot channel to select an operator, to evaluate information from the operator-specific pilot channel of the selected operator to select a radio communication system, and to evaluate information from system-specific pilot channel of the selected radio communication system to decide on an access process for the selected radio communication system; and
a transmitter to transmit signals to access the selected radio communication system, wherein
the terminal is located within a coverage area of the selected operator,
the selected operator maintains a roaming agreement with at least one agreement operator outside the coverage area, and
information on the agreement operator and the roaming agreement is transmitted in the country-specific pilot channel.