OC3 delivery unit; common controller for application modules
First Claim
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1. A delivery unit that interfaces telecommunications media and a switching system, comprising:
- a number of application modules, each having application circuitry operable to perform functions associated with conversions between high level telecommunications signals carried by said media and DS0 network data represented by electrical signals switched by said switching system;
a bus control module having application circuitry that controls access to ingress and egress buses carrying the DS0 network data represented by said electrical signals;
wherein said ingress and egress buses provide transport of said DS0 network data between said application modules;
wherein said application modules each have controller circuitry that is substantially the same for each of said application modules, said controller circuitry operable to originate and terminate control datagrams containing control messages, and said controller circuitry comprising a processor that processes incoming of said control messages and generates outgoing of said control messages.
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Abstract
A delivery unit for interfacing telecommunications media to a switching matrix. The delivery unit functions are partitioned into a number of application modules. Each application module has a controller that handles control messages. Each controller is built from the same circuitry and operates in the same manner so as to provide a common software platform for originating and terminating control messages within the delivery unit.
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Citations
19 Claims
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1. A delivery unit that interfaces telecommunications media and a switching system, comprising:
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a number of application modules, each having application circuitry operable to perform functions associated with conversions between high level telecommunications signals carried by said media and DS0 network data represented by electrical signals switched by said switching system;
a bus control module having application circuitry that controls access to ingress and egress buses carrying the DS0 network data represented by said electrical signals;
wherein said ingress and egress buses provide transport of said DS0 network data between said application modules;
wherein said application modules each have controller circuitry that is substantially the same for each of said application modules, said controller circuitry operable to originate and terminate control datagrams containing control messages, and said controller circuitry comprising a processor that processes incoming of said control messages and generates outgoing of said control messages. - View Dependent Claims (2, 3, 4, 5, 7, 11, 12)
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6. A delivery unit that interfaces telecommunications media and a switching system, comprising:
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a number of application modules, each having application circuitry operable to perform functions associated with conversions between high level signals carried by said media and electrical signals switched by said switching system;
a bus control module having application circuitry that controls access to ingress and egress buses carrying network data represented by said electrical signals;
wherein said ingress and egress buses provide transport of said network data between said application modules;
wherein said application modules each have controller circuitry that is substantially the same for each of said application modules, said controller circuitry operable to originate and terminate control datagrams containing control messages, and said controller circuitry comprising a processor that processes incoming of said control messages and generates outgoing of said control messages, wherein said controller circuitry formats said control datagrams into control subframes carried on said egress bus, wherein said controller circuitry inserts a cyclic redundancy check code into each of said control subframes.
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8. A delivery unit that interfaces telecommunications media and a switching system, comprising:
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a number of application modules, each having application circuitry operable to perform functions associated with conversions between high level signals carried by said media and electrical signals switched by said switching system;
a bus control module having application circuitry that controls access to ingress and egress buses carrying network data represented by said electrical signals;
wherein said ingress and egress buses provide transport of said network data between said application modules;
wherein said application modules each have controller circuitry that is substantially the same for each of said application modules, said controller circuitry operable to originate and terminate control datagrams containing control messages, and said controller circuitry comprising a processor that processes incoming of said control messages and generates outgoing of said control messages, wherein said controller circuitry further comprises memory for storing error data from said application circuitry.
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9. A delivery unit that interfaces telecommunications media and a switching system, comprising:
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a number of application modules, each having application circuitry operable to perform functions associated with conversions between high level signals carried by said media and electrical signals switched by said switching system;
a bus control module having application circuitry that controls access to ingress and egress buses carrying network data represented by said electrical signals;
wherein said ingress and egress buses provide transport of said network data between said application modules;
wherein said application modules each have controller circuitry that is substantially the same for each of said application modules, said controller circuitry operable to originate and terminate control datagrams containing control messages, and said controller circuitry comprising a processor that processes incoming of said control messages and generates outgoing of said control messages, wherein at least one of said application modules has redundant copies, and wherein said controller circuitry is programmed to select an active copy of said at least one application module. - View Dependent Claims (10)
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13. A controller for a bus control module of a delivery unit that interfaces telecommunications media and a switching system, said bus control module having application circuitry for handling data transport within said delivery unit on ingress buses and egress buses, comprising:
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a processor that processes control messages thereby generating control signals;
memory associated with said processor that stores programming for said processor;
an interface to said application circuitry that transports said control signals from said processor to said application circuitry;
wherein said controller is in communication with said application circuitry such that control signals from said processor are delivered to said application circuitry to be distributed on said egress buses with DS0 network data. - View Dependent Claims (14, 15)
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16. A method of transporting control messages within a delivery unit that interfaces telecommunications media to a switching matrix, comprising the steps of:
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partitioning functions associated with conversions between high level telecommunications signals carried by said media and DS0 network data represented by electrical signals switched by said matrix into a number of application modules;
originating and terminating control messages at a controller associated with each of said application modules, wherein said controller is substantially the same for each of said application modules; and
transporting said control messages, together with the DS0 network data represented by said electrical signals, between said application modules on ingress buses and egress buses. - View Dependent Claims (17, 18, 19)
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Specification