Signaling channel firewall for communications between wireless networks
First Claim
1. An isolation structure for interfacing between a microcellular network and a signaling channel of a macrocellular network that is larger than the microcellular network, comprising:
- an input that receives communication signals from the microcellular network;
an output that provides signaling on the signaling channel in response to the communication signals; and
an apparatus, coupled between said input and said output, and implementing a communications protocol stack that translates some of said communication signals into said signaling on the signaling channel but selectively, and independently of conditions in the macrocellular network, denies translation of some of said communication signals into said signaling on the signaling channel, said communications protocol stack operable to translate further signaling received from the signaling channel into further communication signals for use in the microcellular network.
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Abstract
Selective isolation between a microcellular communication network and a signaling channel of a macrocellular communication network that is relatively larger than the microcellular network is achieved by receiving communication signals from the microcellular network, and using a communications protocol stack to translate the communication signals into further signals for transmission over the signaling channel. Some of the communications signals are translated into the further signals, but some of the communications signals are selectively denied translation into the further signals.
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Citations
25 Claims
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1. An isolation structure for interfacing between a microcellular network and a signaling channel of a macrocellular network that is larger than the microcellular network, comprising:
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an input that receives communication signals from the microcellular network; an output that provides signaling on the signaling channel in response to the communication signals; and an apparatus, coupled between said input and said output, and implementing a communications protocol stack that translates some of said communication signals into said signaling on the signaling channel but selectively, and independently of conditions in the macrocellular network, denies translation of some of said communication signals into said signaling on the signaling channel, said communications protocol stack operable to translate further signaling received from the signaling channel into further communication signals for use in the microcellular network. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15, 16)
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14. A method of interfacing between a microcellular communication network and a signaling channel of a macrocellular communication network that is larger than the microcellular network, comprising:
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receiving communication signals from the microcellular network; using a communications protocol stack to translate the communication signals into further signals, and transmitting the further signals over the signaling channel; said using step including translating some of the communication signals into the further signals and, independently of conditions in the macrocellular network, using the communications protocol stack to selectively deny translation of some of the communication signals into the further signals; receiving signals from the signaling channel; and using the communications protocol stack to translate the signals received from the signaling channel into communication signals for use in the microcellular network. - View Dependent Claims (17, 18, 19, 20, 21, 22)
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23. A communication system, comprising:
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a microcellular communication network; a macrocellular communication network that is larger than said microcellular network, said macrocellular network including a signaling channel; and an isolation interface coupled between said microcellular network and said signaling channel of said macrocellular network, said isolation interface including an input that receives communication signals from said microcellular network, an output that provides signaling on said signaling channel in response to said communications signals, and an apparatus coupled between said input and said output and implementing a communications protocol stack that translates some of said communication signals into said signaling on the signaling channel but selectively, and independently of conditions in the macrocellular network, denies translation of some of said communication signals into said signaling on the signaling channel, said communications protocol stack operable to translate further signaling received from the signaling channel into further communication signals for use in the microcellular network. - View Dependent Claims (24, 25)
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Specification