Communication system, mobile services switching center and method for establishing a multi-dialogue communication between subscriber stations

• US 6,144,647 A
• Filed: 11/03/1997
• Issued: 11/07/2000
• Est. Priority Date: 11/04/1996
• Status: Expired due to Term

• Current Assignee: Telefonaktiebolaget LM Ericsson
• Original Assignee: Telefonaktiebolaget LM Ericsson
• Inventors: Lopez-Torres, Oscar
• Primary Examiner(s): Olms, Douglas W.
• Assistant Examiner(s): RAO, SEEMA SRINIVAS
• Application Number:
  US08/962,671
• Time in Patent Office: 1,100 Days
• Field of Search: 370/343, 370/328, 370/329, 370/480, 370/482, 370/493, 370/535-538, 370/542, 370/522, 370/341, 370/344, 370/496, 370/497, 370/437, 370/468, 455/433, 455/435, 455/445, 455/560, 379/229, 379/401
• US Class Current: 370/329
• CPC Class Codes: H04L 65/1101 Session protocols
• CPC Class Codes: H04L 69/14 Multichannel or multilink protocols
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04N 1/00106 using land mobile radio networks, e.g. mobile telephone
• CPC Class Codes: H04N 7/12 Systems in which the television signal is transmitted via one channel or a plurality of parallel channels, the bandwidth of each channel being less than the bandwidth of the television signal H04N7/24 takes precedence
• CPC Class Codes: H04N 7/148 Interfacing a video terminal to a particular transmission medium, e.g. ISDN
• CPC Class Codes: H04Q 11/0457 Connection protocols
• CPC Class Codes: H04W 28/20 Negotiating bandwidth
• CPC Class Codes: H04W 76/10 Connection setup

Abstract

A communication system, a mobile services switching center and a method is described, for allowing a multi-dialogue communication to take place between a first subscriber station (MS1, MS2, . . . MSn) and a second subscriber station (ISDN ST1) through a mobile services switching center (MSC/VLR) of a public land mobile network (PLMN). A mapping device (MP) of the mobile services switching center (MSC) maps several communication channels between the first subscriber station (MS1, MS2, . . . MSn) and the mobile services switching center (MSC/VLR) onto at least one second communication channel (CC2) between the PLMN and a fixed network (FN).

Claims

1. A communication system for performing a multi-dialogue communication between a first subscriber station and a second subscriber station through a Mobile services Switching Center (MSC) of a public land mobile network, comprising:

a) at least one first communication channel provided between the first subscriber station and the Mobile Services Switching Center;

b) at least one second communication channel provided between the second subscriber station and the Mobile Services Switching Center;

wherein

c) the Mobile Services Switching Center comprises a mapping means for performing said multi-dialogue communication by

setting up a requested number of concurrent single-dialogues on said at least one second communication channel; and

mapping said requested number of concurrent single-dialogues as a single call on said at least one second communication channel onto said at least one first communication channel.

2. A communication system according to claim 1, wherein both the first and second subscriber stations are first and second mobile stations of the public land mobile network.

3. A communication system according to claim 2, wherein a fixed network is connected to the public land mobile network via a fixed network exchange wherein the multi-dialogue communication between the first and second mobile stations is carried out through said fixed network.

4. A communication system according to claim 1, wherein the first subscriber station is a mobile radio station of the public land mobile network and the second subscriber station is a subscriber station of a fixed network connected to the public land mobile network via a fixed network exchange.

5. A communication system according to claim 4, wherein the second subscriber station is an ISDN station and said fixed network exchange is an ISDN exchange.

6. A communication system according to claim 2, wherein the first mobile station is provided for transmitting a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting the multi-dialogue communication to the second mobile station.

7. A communication system according to claim 4, wherein the first mobile station is provided for transmitting a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting a multi-dialogue communication to the second subscriber station of said fixed network.

8. A communication system according to claim 4, wherein the second subscriber station of said fixed network is provided for transmitting a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting a multi-dialogue communication to the first mobile station.

9. A communication system according to claim 1, wherein said second communication channel is a communication channel of 64 kBit/s and said first communication channel is a communication channel of less than 64 kBit/s, e.g. 9.6 kBit/s or 14.4 KBit/s.

10. A communication system according to claim 5, wherein said second communication channel is a ISDN B-channel or an ISDN D-channel.

11. A communication system according to claim 1, wherein the multi-dialogue communication comprise at least one selected from the group consisting of:

a speech/video, a data transfer/video, a facsimile/video, a speech/data transfer multi-dialogue and simultaneous dialogues for data transfer.

12. A communication system according to claim 1, wherein the multi-dialogue communication is a speech dialogue/video dialogue, wherein 5 radio traffic channels are used between the first and second mobile station with 1 radio traffic channel used for said speech dialogue and 4 radio traffic channels used for said video dialogue.

13. A communication system according to claim 6, wherein the multi-dialogue call establishment request message comprises several sets of compatibility information, each set defining a distinct single dialogue of said requested multi-dialogue call, and a multi-dialogue-call indicator indicating a multi-dialogue request.

14. A communication system according to claim 4, wherein said mapping means performs a mapping of mobile compatibility information of said mobile station and ISDN/ISUP bearer capabilities and High Layer compatibility information of said fixed network subscriber station.

15. A communication system according to claim 12, wherein said 1 radio traffic channel used for said speech dialogue is mapped to a first ISDN B-channel and said 4 radio traffic channels used for said video dialogue are mapped to a second ISDN B-channel.

16. A communication system according to claim 1, wherein a multirate ISDN procedure is used to allocate multiple B-channels.

17. A communication system according to claim 1, wherein each single dialogue comprises a single bearer service and/or teleservice and the multi-dialogue comprises a concurrent occurrence of multiple bearer services and/or teleservices.

18. A communication system according to claim 1, wherein the public land mobile network comprises at least one selected from the group consisting of:

a D1-, D2 mobile network, a GSM 900 MHz Global System for Mobile communications, a DCS 1800 Digital Cellular System at 1800 MHz, an E-plus mobile network and a PCS 1900.,MHz Personal Communication System.

19. A communication system according to claim 3, wherein said fixed network comprises:

an Integrated Services Digital network ISDN or a Packet Switched Public Data Network PSPDN.

20. A communication system according claim 12, wherein said traffic channels are defined in at least one selected from the group consisting of:

the A interface between said Mobile services Switching Center and a base station controller, the A-bis interface between said base station controller and a base transceiver station, and the Um air interface between said mobile station and said base transceiver station.

32. A communication system according to claim 7, wherein the multi-dialogue call establishment request message comprises several sets of compatibility information, each set defining a distinct single dialogue of said requested multi-dialogue call, and a multi-dialogue-call indicator indicating a multi-dialogue request.

33. A communication system according to claim 8, wherein the multi-dialogue call establishment request message comprises several sets of compatibility information, each set defining a distinct single dialogue of said requested multi-dialogue call, and a multi-dialogue-call indicator indicating a multi-dialogue request.

21. Mobile services Switching Center of a public land mobile network connected via at least one first communication channel with a first subscriber station and via at least one second communication channel with a second subscriber station, for performing a multi-dialogue communication between said first subscriber station and said second subscriber station, comprising:

a mapping means (MP) for performing the multi-dialogue communication by setting up a requested number of concurrent single-dialogues on said at least one second communication channel and mapping said requested number of concurrent single-dialogues as a single call on said at least one second communication channel onto said at least one first communication channel.

22. A method for establishing a multi-dialogue communication between a first subscriber station and a second subscriber station through a Mobile Services Switching Center of a public land mobile network, comprising:

a) sending a multi-dialogue call set-up message from the first subscriber station to said Mobile Services Switching Center indicating a number of concurrent single dialogues requested to be set up;

b) receiving said multi-dialogue call set-up message in the Mobile Services Switching Center and identifying the types of said requested concurrent single dialogues; and

c) successively assigning said types of requested single dialogues to a corresponding number of second communication channels between the Mobile Services Switching Center and the second subscriber station; and

d) mapping said requested number of single-dialogues on said second communication channels onto at least one first communication channel between the first subscriber station and the Mobile Services Switching Center.

23. A method according to claim 22, wherein both said first and second subscriber stations are mobile stations of said public land mobile network (PLMN).

24. A method according to claim 23 further comprising the step of transmitting from the first mobile station a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting the multi-dialogue communication to the second mobile station.

25. A method according to claim 22, wherein said first subscriber station is a first mobile station of said public land mobile network;

and

further comprising the step of transmitting from the first mobile station a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting the multi-dialogue communication to a second subscriber station of a fixed network connected to the public land mobile network via a fixed network exchange.

26. A method according to claim 22, wherein said first subscriber station is a first mobile station of said public land mobile network;

and

further comprising the step of transmitting from a second subscriber station, of a fixed network connected to the public land mobile network via a fixed network exchange a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting said multi-dialogue communication to said first mobile station.

27. A method according to claim 22, wherein said second communication channel is a communication channel of 64 kBit/s and said first communication channel is a communication channel of less than 64 kBit/s, e.g. of 9.6 KBit/s or 14.4 KBit/s.

28. A method according to claim 22, wherein said second communication channel is an ISDN B- or ISDN D-channel.

29. A method according to claim 22, wherein the multi-dialogue communication comprises at least one selected from the group consisting of:

a speech/video, a data transfer/video, a facsimile/video, a speech/data transfer multi-dialogue and simultaneous dialogues for data transfer.

30. A method according to claims 24, wherein the multi-dialogue call establishment request message comprises several sets of compatibility information, each defining a distinct single dialogue of said requested multi-dialogue call, and a multi-dialogue-call indicator indicating a multi-dialogue request.

31. A method according to claim 23, wherein each single dialogue comprises at least one selected from the group consisting of a single bearer service, and teleservice and said multi-dialogue is established as a concurrent occurrence of multiple bearer services and/or teleservices on said mapped communication channels.

34. A method according to claims 25, wherein the multi-dialogue call establishment request message comprises several sets of compatibility information, each defining a distinct single dialogue of said requested multi-dialogue call, and a multi-dialogue-call indicator indicating a multi-dialogue request.

35. A method according to claims 26, wherein the multi-dialogue call establishment request message comprises several sets of compatibility information, each defining a distinct single dialogue of said requested multi-dialogue call, and a multi-dialogue-call indicator indicating a multi-dialogue request.

36. A communication system for performing a multi-dialogue communication between a first subscriber station and a second subscriber station through a Mobile services Switching Center of a public land mobile network, comprising:

a) at least one first communication channel provided between the first subscriber station and the Mobile Services Switching Center;

b) at least one second communication channel provided between the second subscriber station and the Mobile Services Switching Center;

wherein

c) the Mobile Services Switching Center comprises a mapping means for performing said multi-dialogue communication by

setting up a requested number of concurrent single-dialogues on said at least one second communication channel; and

mapping said requested number of concurrent single-dialogues as a single call on said at least one second communication channel onto said at least one first communication channel;

wherein

the first subscriber station is a mobile radio station of the public land mobile network and the second subscriber station is a subscriber station of a fixed network connected to the public land mobile network via a fixed network exchange; and

said mapping means performs a mapping of mobile compatibility information of said mobile station and ISDN/ISUP bearer capabilities and High Layer compatibility information of said fixed network subscriber station.

37. A communication system for performing a multi-dialogue communication between a first subscriber station and a second subscriber station through a Mobile services Switching Center of a public land mobile network, comprising:

a) at least one first communication channel provided between the first subscriber station and the Mobile Services Switching Center;

b) at least one second communication channel provided between the second subscriber station and the Mobile Services Switching Center;

wherein

c) the Mobile Services Switching Center comprises a mapping means for performing said multi-dialogue communication by

setting up a requested number of concurrent single-dialogues on said at least one second communication channel; and

mapping said requested number of single-dialogues as a single call on said at least one second communication channel onto said at least one first communication channel;

wherein

the first subscriber station is a mobile radio station (MS

     1) of the public land mobile network and the second subscriber station is a subscriber station of a fixed network connected to the public land mobile network via a fixed network exchange;

the first mobile station is provided for transmitting a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting a multi-dialogue communication to the second subscriber station of said fixed network; and

the second subscriber station of said fixed network is provided for transmitting a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting a multi-dialogue communication to the first mobile station.

38. A communication system for performing a multi-dialogue communication between a first subscriber station and a second subscriber station through a Mobile services Switching Center of a public land mobile network, comprising:

a) at least one first communication channel provided between the first subscriber station and the Mobile Services Switching Center;

b) at least one second communication channel provided between the second subscriber station and the Mobile Services Switching Center;

wherein

c) the Mobile Services Switching Center comprises a mapping means for performing said multi-dialogue communication by

setting up a requested number of concurrent single-dialogues on at least one second communication channel; and

mapping said requested number of concurrent single-dialogues as a single call on said at least one second communication channel onto said at least one first communication channel;

wherein

the first subscriber station is a mobile radio station of the public land mobile network and the second subscriber station is a subscriber station of a fixed network connected to the public land mobile network via a fixed network exchange;

the first mobile station is provided for transmitting a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting a multi-dialogue communication to the second subscriber station of said fixed network;

the second subscriber station of said fixed network is provided for transmitting a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting a multi-dialogue communication to the first mobile station; and

said multi-dialogue call establishment request message comprises several sets of compatibility information, each set defining a distinct single dialogue of said requested multi-dialogue call, and a multi-dialogue-call indicator indicating a multi-dialogue request.

39. A communication system for performing a multi-dialogue communication between a first subscriber station and a second subscriber station through a Mobile services Switching Center of a public land mobile network, comprising:

a) at least one first communication channel provided between the first subscriber station and the Mobile Services Switching Center;

b) at least one second communication channel provided between the second subscriber station and the Mobile Services Switching Center;

wherein

c) the Mobile Services Switching Center comprises a mapping means for performing said multi-dialogue communication by

setting up a requested number of concurrent single-dialogues on said at least one second communication channel; and

mapping said requested number of concurrent single-dialogues as a single call on said at least one second communication channel onto said at least one first communication channel;

wherein

both the first and second subscriber stations are mobile stations of the public land mobile network;

the first mobile station is provided for transmitting a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting the multi-dialogue communication to the second mobile station; and

said multi-dialogue call establishment request message comprises several sets of compatibility information, each set defining a distinct single dialogue of said requested multi-dialogue call, and a multi-dialogue-call indicator indicating a multi-dialogue request.

40. A method for establishing a multi-dialogue communication between a first subscriber station and a second subscriber station through a Mobile Services Switching Center of a public land mobile network, comprising:

a) sending a multi-dialogue call set-up message from the first subscriber station to said Mobile Services Switching Center indicating a number of concurrent single dialogues requested to be set up;

b) receiving said multi-dialogue call set-up message in the Mobile Services Switching Center and identifying the types of said requested concurrent single dialogues; and

c) successively assigning said types of requested single dialogues to a corresponding number of second communication channels between the Mobile Services Switching Center and the second subscriber station; and

d) mapping said requested number of single-dialogues on said second communication channels onto at least one first communication channel between the first subscriber station and the Mobile Services Switching Center;

wherein

both said first and second subscriber stations are mobile stations of said public land mobile network; and

further comprising the step of transmitting from the first mobile station a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting the multi-dialogue communication to the second mobile station;

wherein

in the multi-dialogue call establishment request message several sets of compatibility information, each defining a distinct single dialogue of said requested multi-dialogue call, and a multi-dialogue-call indicator indicating a multi-dialogue request are sent.

41. A method for establishing a multi-dialogue communication between a first subscriber station and a second subscriber station through a Mobile Services Switching Center of a public land mobile network, comprising:

a) sending a multi-dialogue call set-up message from the first subscriber station to said Mobile Services Switching Center indicating a number of concurrent single dialogues requested to be set up;

b) receiving said multi-dialogue call set-up message in the Mobile Services Switching Center and identifying the types of said requested concurrent single dialogues; and

c) successively assigning said types of requested single dialogues to a corresponding number of second communication channels between the Mobile Services Switching Center and the second subscriber station; and

d) mapping said requested number of single-dialogues on said second communication channels onto at least one first communication channel between the first subscriber station and the Mobile Services Switching Center;

wherein

said first subscriber station is a first mobile station of said public land mobile network; and

further comprising the step of transmitting from the first mobile station a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting the multi-dialogue communication to a second subscriber station of a fixed network connected to the public land mobile network via a fixed network exchange;

wherein

in the multi-dialogue call establishment request message several sets of compatibility information, each defining a distinct single dialogue of said requested multi-dialogue call, and a multi-dialogue-call indicator indicating a multi-dialogue request are sent.

42. A method for establishing a multi-dialogue communication between a first subscriber station and a second subscriber station through a Mobile Services Switching Center of a public land mobile network, comprising:

a) sending a multi-dialogue call set-up message from the first subscriber station to said Mobile Services Switching Center indicating a number of concurrent single dialogues requested to be set up;

b) receiving said multi-dialogue call set-up message in the Mobile Services Switching Center and identifying the types of said requested concurrent single dialogues; and

c) successively assigning said types of requested single dialogues to a corresponding number of second communication channels between the Mobile Services Switching Center and the second subscriber station; and

d) mapping said requested number of single-dialogues on said second communication channels onto at least one first communication channel between the first subscriber station and the Mobile Services Switching Center;

wherein

said first subscriber station is a first mobile station of said public land mobile network; and

further comprising the step of transmitting from a second subscriber station, of a fixed network connected to the public land mobile network via a fixed network exchange a multi-dialogue call establishment request message to the Mobile Services Switching Center for requesting said multi-dialogue communication to said first mobile station

in the multi-dialogue call establishment request message several sets of compatibility information, each defining a distinct single dialogue of said requested multi-dialogue call, and a multi-dialogue-call indicator indicating a multi-dialogue request are sent.