Support of multiplicity of radio interfaces over an interface between a base station system and a mobile switch
First Claim
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1. A mobile radio system, comprisingmobile stations,a mobile switch,a base station system supporting multiple radio interfaces for communication between said base station system and said mobile stations,a dedicated signalling protocol associated with each of said multiple radio interfaces,a single signalling interface between said mobile switch and said base station system, said single signalling protocol supporting each of said dedicated signalling protocols,a discrimination parameter used separating signalling messages belonging to different signalling protocols from each other, said discrimination parameter being associated with each signalling message transferred through said single signalling interface for indicating the signalling the signalling protocol said message belongs to.
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Abstract
In mobile radio systems, it may be necessary to support multiple radio interfaces within a single mobile radio network. To support these multiple radio interfaces, it may be necessary to support even multiple signalling protocols within a single interface between a base station controller and a mobile switch, when base stations supporting different radio interfaces are connected via a common base station controller to the mobile switch. The mobile switch and the base station controller must be capable of recognizing to which signalling protocol a message transfer in the single interface belongs to. The messages transferred in the single interface are provided with a discrimination parameter which can be used to discriminate between the messages belonging to different radio interfaces and signalling protocols.
41 Citations
11 Claims
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1. A mobile radio system, comprising
mobile stations, a mobile switch, a base station system supporting multiple radio interfaces for communication between said base station system and said mobile stations, a dedicated signalling protocol associated with each of said multiple radio interfaces, a single signalling interface between said mobile switch and said base station system, said single signalling protocol supporting each of said dedicated signalling protocols, a discrimination parameter used separating signalling messages belonging to different signalling protocols from each other, said discrimination parameter being associated with each signalling message transferred through said single signalling interface for indicating the signalling the signalling protocol said message belongs to.
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2. A mobile radio system, comprising
mobile stations, a mobile switch, a base station system supporting a first radio interface for communication with a first group of said mobile stations and a second radio interface for communication with a second group of said mobile stations, a first signalling protocol and a first group of signalling messages associated with said first radio interface, a second signalling protocol and a second group of messages associated with said second radio interface, a single signalling interface between said mobile switch and said base station system, said single signalling protocol supporting each of said dedicated signalling protocols, a discrimination parameter used for separating said first and second groups of signalling messages belonging to different signalling protocols from each other, said discrimination parameter being associated with each signalling message transferred through said single signalling interface for indicating the signalling the signalling protocol said message belongs to.
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3. A mobile radio system, comprising
mobile stations, a mobile switch, a base station system supporting a first radio interface for communication with a first group of said mobile stations and radio interface for communication with a second group of said mobile stations, a single signalling interface between said mobile switch and said base station system, said single signalling interface comprising an upper signalling layer comprising a first group of signalling messages corresponding to said first radio interface for signalling between said mobile switch and said base station system over said single signalling interface, and a second group of signalling messages corresponding to said second radio interface for signalling between said mobile switch and said base station system over said single signalling interface, a lower signalling layer for carrying said upper signalling layer messages in an user data field of a lower layer message over said single signalling interface, said user data field of said lower layer message further containing a discrimination parameter, one or more bits of said discriminating parameter indicating whether said message in said user data field of said lower layer message belongs to said first group of messages or to said second group of messages, an intermediate layer between said lower layer and said upper layer for managing said discrimination parameter and for discrimination between said upper layer messages belonging to said first and second groups of messages.
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4. A mobile radio system, comprising
mobile stations, a mobile switch, a base station system supporting a first radio interface for communication with a first group of said mobile stations and a second a second radio interface for communication with a second group of said mobile stations, a single signalling interface between said mobile switch and said base station system, a first group of signalling messages corresponding to said first radio interface for signalling between said mobile switch and said base station system over said single signalling interface, a second group of signalling messages corresponding to said second radio interface for signalling between said mobile switch and said second base station system over said single signalling interface, said single signalling interface comprising a first direct transfer application sub-part DTAP for transferring DTAP messages in said first group of messages between said mobile switch and said first group of said mobile stations via said single signalling interface and base station system, a first base station system management application sub-part BSSMAP for transferring BSSMAP messages in said first group messages between said mobile switch and said base station system, a second direct transfer application sub-part DTAP for transferring DTAP messages in said second group of messages between said mobile switch and said second group of said mobile stations via said single signalling interface and base station system, a second base station system management application sub-part BSSMAP for transferring BSSMAP messages in said second group messages between said mobile switch and said base station system, a single signalling connection and control part SCCP for transferring said DTAP and BSSMAP messages in an user data field of a SCCP message over said single signalling interface, said user data field of said SCCP message containing a distribution data unit, a length indicator and said DTAP or BSSMAP message to be transferred, said distribution data unit containing a discrimination parameter, at least one bit of said discrimination parameter indicating whether the message in said user data field of said SCCP message is a BSSMAP message or a DTAP message, and one or more of the remaining bits of said discriminating parameter indicating whether said message in said user data field of said SCCP message belongs to said first group of messages or said second group of messages, an intermediate layer between the SCCP and DTAP and BSSMAP and for managing said discrimination parameter and for discrimination between said DTAP and BSSMAP messages belonging to said first and second groups of messages.
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7. A mobile radio system, comprising
personal stations, a mobile switch, a radio system supporting a first radio interface for communication with a first group of said personal stations and a second interface for communication with a second group of said personal stations, a single signalling interface between said mobile switch and said radio system, a first group of signalling messages corresponding to said first radio interface for signalling between said mobile switch and said radio system over said single signalling interface, a second group of signalling messages corresponding to said second radio interface for signalling between said mobile switch and said radio system over said single signalling interface, said single signalling interface comprising a first direct transfer application sub-part DTAP for transferring DTAP messages in said first group of messages between said mobile switch and said first group of said personal stations via said single signalling interface and said radio system, a first radio system management application sub-part RSMAP for transferring RSMAP messages in said first group messages between said mobile switch and said radio system, a second direct transfer application sub-part DTAP for transferring DTAP messages in said second group of messages between said mobile switch and said second group of said personal stations via said single signalling interface and said radio system, a second radio system management application sub-part RSMAP for transferring RSMAP messages in said second group messages between said mobile switch and said radio system, a single signalling connection and control part SCCP for transferring said DTAP and BSSMAP messages in an user data field of a SCCP message over said single signalling interface, said user data field of said SCCP message containing a distribution data unit, a length indicator and said DTAP or RSMAP message to be transferred, said distribution data unit containing a discrimination parameter, at least one bit of said discrimination parameter indicating whether the message in said user data field of said SCCP message is a RSMAP message or a DTAP message, and one or more of the remaining bits of said discriminating parameter indicating whether said message in said user data field of said SCCP message belongs to said first group of messages or said second group of messages, an intermediate layer between the SCCP and DTAP and RSMAP and for managing said discrimination parameter and for discrimination between said DTAP and RSMAP messages belonging to said first and second groups of messages.
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10. A signalling method in a mobile radio system, comprising steps of
utilizing at least two different radio interfaces for communication between a base station system and a plurality of mobile stations, utilizing a dedicated signalling protocol for each of said at least two different radio interfaces, utilizing a single signalling interface for signalling between said base station system and a mobile switch, said single signalling interface supporting each of said dedicated signalling protocols, associating a discrimination parameter with each signalling message transferred through said single signalling interface, for separating signalling messages belonging to different signalling protocols from each other in said single signalling interface, a dedicated value of said discrimination parameter being allocated to each of said radio multiple radio interfaces.
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11. A mobile radio system, comprising
personal stations, a mobile switch, a radio system supporting a first radio interface for communication with a first group of said personal stations and a second interface for communication with a second group of said personal stations, a single signalling interface between said mobile switch and said radio system, a first group of signalling messages corresponding to said first radio interface for signalling between said mobile switch and said radio system over said single signalling interface, a second group of signalling messages corresponding to said second radio interface for signalling between said mobile switch and said radio system over said single signalling interface, said single signalling interface comprising a first direct transfer application sub-part DTAP for transferring DTAP messages in said first group of messages via said single signalling interface and said radio system, a first radio system management application sub-part RSMAP for transferring RSMAP messages in said first group messages between said mobile switch and said radio system, a second direct transfer application sub-part DTAP for transferring DTAP messages in said second group of messages between said mobile switch and said second group of said personal stations via said single signalling interface and said radio system, a second radio system management application sub-part RSMAP for transferring RSMAP messages in said second group messages between said mobile switch and said radio system, a single signalling connection and control part SCCP for transferring said DTAP and BSSMAP messages in an user data field of a SCCP message over said single signalling interface, said user data field of said SCCP message containing a distribution data unit, a length indicator and said DTAP or RSMAP message to be transferred, said distribution data unit containing a discrimination parameter, at least one bit of said discrimination parameter indicating whether the message in said user data field of said SCCP message is a RSMAP message or a DTAP message, and one or more of the remaining bits of said discriminating parameter indicating whether said message in said user data field of said SCCP message belongs to said first group of messages or said second group of messages, an intermediate layer between the SCCP and DTAP and RSMAP and for managing said discrimination parameter and for discrimination between said DTAP and RSMAP messages belonging to said first and second groups of messages.
Specification
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Current AssigneeIntellectual Ventures I LLC (Intellectual Ventures LLC)
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Original AssigneeNokia Telecommunications Oy (Nokia Corporation)
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InventorsDurchman, Elina, Maenpaa, Sanna, Laatu, Juho
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Primary Examiner(s)Bost, Dwayne
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Assistant Examiner(s)Maung, Nay Aung
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Application NumberUS08/373,942Time in Patent Office963 DaysField of Search379/58, 379/59, 379/60, 455/33.1US Class Current455/466CPC Class CodesH04W 88/10 adapted for operation in mu...H04W 92/02 Inter-networking arrangementsH04W 92/14 between access point contro...
