Patent US4384052A successfully refreshed from Google Patents.
EP0664658A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Communication system for digital cellular data
Assignee: AT&T Inc
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Filing: 1994-12-07
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Granted: —
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Expires: 2014-12-07
Abstract
Abstract A system and method deliver packetized data representing radio signals to and from cell sites (14,16,18,20), and to and from a destination point via a fast packet network (22). Each cell site includes an interface for packetizing the radio signals and transmitting the packetized data to its destination. The destination could be a delivery point at a switch connected to the telephone network (46), which then converts the packetized data into a form usable by the telephone network. Alternatively, the destination point could be another cell site, which then depacketizes the radio signal and retransmits the radio signal to another wireless communication device without connecting to the telephone network.
Inventors
- 👤 Joseph Patrick Focarile
- 👤 Jayant Gurudatta Hemmady
- 👤 Ronald Anthony Spanke
- 👤 Hsien-Chuen Yu
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-31 08:44
CPC Classifications
H; H04; H04W; H04W88/00; H04W88/18; H04W88/181; H04Q; H04Q11/00; H04Q11/04; H04Q11/0428; H04Q11/0478; H04L; H04L12/00; H04L12/54; H04L12/56; H04L12/5601; H04L2012/5603; H04L2012/5604; H04L2012/5607; H04L2012/5609; H04L2012/561
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
233 words
An improvement for the telephone network, said telephone network comprising a plurality of connection-based networks and a plurality of cellular communications networks, each of said cellular communications networks comprising a plurality of cell sites that communicate with a plurality of mobile units via radio signals, said cell sites converting data transmitted and received in said radio signals into electronic data, said connection-based network having a plurality of delivery points which function to translate between said electronic data and a form usable by said connection-based network and between said form usable by said connection-based network and said electronic data, said improvement comprising: a single high speed packet network, said high speed packet network having connections to each of said plurality of cell sites and each of said delivery points; means at each of said cell sites for packetizing said electronic data for transmission by said high speed packet network, for transmitting and receiving said packetized communications on said high speed packet network, for depacketizing said electronic data, and for converting said depacketized electronic data into radio signals; and means at each of said delivery points for receiving and transmitting said packetized communications from said high speed packet network, for depacketizing said communication and for translating said communications into a format usable by said connection-based network, wherein said communications may be delivered to any delivery point connected to said high speed packet network for translation.
Claim 2
Dependent Claim
18 words
The improvement of claim 1 wherein said high speed packet network comprises an asynchronous transfer mode (ATM) network.
Claim 3
Dependent Claim
44 words
The improvement of claim 1 wherein said radio signals comprise code-division multiple access (CDMA) communications, and wherein said means at each of said delivery points for translating comprises means for translating said CDMA communications into digital data usable by a public switched telephone network.
Claim 4
Dependent Claim
50 words
The improvement of claim 2 wherein said ATM network transmits ATM packets, each of said ATM packets having a payload, and wherein said means at each of said cell sites for packetizing said communications comprises means for receiving said communications and placing them into said payload of said ATM packet.
Claim 5
Dependent Claim
23 words
The improvement of claim 4 wherein said means for depacketizing comprises means for removing said communications from said payload of said ATM packet.
Claim 6
Dependent Claim
36 words
The improvement of claim 1 wherein said means at said cell site for receiving and depacketizing data is capable of receiving data from both a delivery point in a connection-based network and from another cell site.
Claim 7
Independent Claim
164 words
A method for transmitting cellular communications between a cell site and a public switched telephone network, said network including a delivery point for translating said cellular communications which are in a form suitable for cellular radio transmission into and out of a form suitable for said public switched telephone network, said cell site being in communication with one or more cellular devices via said radio transmission, said cell site and said delivery point being connected to a high speed packet network, said method comprising: receiving radio signals from said cellular devices at said cell site; said cell site embedding a communications content of said radio signals in a packet transmissible by said high speed packet network and transmitting said packet on said high speed packet network; said delivery point receiving said packet, removing said embedded communication content from said packet, translating said communications into a form usable by said public switched telephone network, and delivering said translated communications to said public switched telephone network.
Claim 8
Dependent Claim
63 words
The method of claim 7 wherein said high speed packet network comprises an ATM network, said ATM network transmitting ATM packets comprising a header and a payload, when said step of embedding said communication in a packet comprises breaking said communications into portions that are the size of said ATM packet payload and placing each of said portions into said ATM packet payloads.
Claim 9
Dependent Claim
36 words
The method of claim 8 wherein said step of removing said embedded communications comprises removing each of said portions of said communication from said payload of said ATM packets and reassembling said portions into said communications.
Claim 10
Dependent Claim
36 words
The method of claim 7 wherein said communications comprise CDMA data packets, and wherein said step of translating said communications comprises translating said CDMA data packets into data packets usable by said public switched telephone network.
Claim 11
Independent Claim
152 words
A method for transmitting cellular radio signals between a first and a second cell site for a call from a first cellular device to a second cellular device without converting said call into a form usable by a connection-based telephone network, said first and second cell sites having a connection to a high speed packet network, said method comprising: receiving radio signals from said first cellular device at said first cell site, said radio signals including a communication content; translating said communication content into electronic data; said first cell site embedding said electronic data into a packet transmissible by said high speed packet network and transmitting said packet to said second cell site on said high speed packet network; said second cell site receiving said packetized electronic data, removing said electronic data from said packet, translating said electronic data into radio signals, and transmitting said radio signals to said second cellular device.
Claim 12
Dependent Claim
64 words
The method of claim 11 wherein said high speed packet network comprises an ATM network, said ATM network transmitting ATM packets comprising a header and a payload, said step of embedding said electronic data into a packet comprising breaking said electronic data into portions that are the size of said ATM packet payload and placing each of said portions into said ATM packet payloads.
Claim 13
Dependent Claim
38 words
The method of claim 12 wherein said step of removing said embedded content comprises removing each of said portions of said electronic data from said payload of said ATM packets and reassembling said portions into said radio signals.
Claim 14
Independent Claim
173 words
A system for transmitting cellular radio signals between a first and a second cell site for a call from a first cellular device to a second cellular device without converting said call into a form usable by a connection-based telephone network, said cell sites connected to a high-speed packet network, said system comprising: means for receiving radio signals from said first cellular device at said first cell site, said radio signals including a communications content; means at said first cell site for translating said communication content of said radio signals into electronic data, for embedding said electronic data into a packet transmissible by said high speed packet network and for transmitting said packet to said second cell site on said high speed packet network; and means at said second cell site for receiving said packetized electronic data for removing said electronic data from said packet, for translating said electronic data into said communications content of said radio signals and for transmitting said communications content of said radio signals to said second cellular device.
References Cited (Backward Citations)
No citation records indexed.
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