CA2276704A1 - Radio interface card for a broadband wireless atm system - Google Patents
Radio interface card for a broadband wireless atm system Download PDFInfo
- Publication number
- CA2276704A1 CA2276704A1 CA 2276704 CA2276704A CA2276704A1 CA 2276704 A1 CA2276704 A1 CA 2276704A1 CA 2276704 CA2276704 CA 2276704 CA 2276704 A CA2276704 A CA 2276704A CA 2276704 A1 CA2276704 A1 CA 2276704A1
- Authority
- CA
- Canada
- Prior art keywords
- signal
- aric
- modem
- nius
- base station
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
Abstract
A radio interface card for use in a base station of a broadband wireless ATM system to support bi-directional communications with customer premise network interface units (NIUs) over a wireless link. The ATM radio interface card (ARIC) includes a modem for modulating data received from an ATM backbone connected to the base station into a point to multipoint format for transmission over the link to the NIUs. A demodulator in the ARIC supports a point to point protocol for processing digital communications received from distributed NIUs located within a geographic area.
Claims (12)
1. An ATM radio interface card (ARIC) for use in a base station of a broadband wireless system for digital communication between an ATM backbone and a network interface unit (NIU) at a customer site over a wireless link, said ARIC comprising: a modem for modulating said digital communication from said ATM backbone; a tuner for converting said modulated communication to a radio frequency (RF) signal; and a control module for controlling transmission of said RF signal.
2. An ARIC as defined in claim 1 for bi-directional communication between said base station and a plurality of NIUs located at customer premises within a cellular area.
3. An ARIC as defined in claim 2 wherein each of said plurality of NIUs is in a fixed location within said cellular area.
4. An ARIC as defined in claim 3 wherein said modem includes a demodulator for reconfiguring communication received from said NIUs.
5. An ARIC as defined in claim 4 wherein said modem polls each of said NIUs for status information and establishes transmit power levels, frequency and timing.
6. An ARIC as defined in claim 1 wherein said modem generates a synchronization signal for transmission to said NIU.
7. An ARIL as defined in claim 4 wherein said tuner includes a first converter for up converting an Intermediate Frequency (IF) signal from said modulator to a Radio Frequency (RF) signal for transmission to said NIU and a second converter for down converting a RF signal received from said NIU to an IF signal for said demodulator.
8. An ARIC as defined in claim 1 wherein said modem supports one or more control ports interfacing with an external transmitter/receiver.
9. An ARIC as defined in claim 8 wherein said control module controls said external transmitter/receiver.
10. A method for communicating digital information between a base station and a network interface unit (NIU) over a wireless link comprising: providing at said base station an ATM radio interface card (ARIC) having a modem, a tuner, and a controller; configuring said digital information at said modem into an intermediate frequency (IF) signal; converting said IF signal into a radio frequency (RF) signal at said tuner; and delivering said RF signal to a transmitter for transmission to said NIU over said wireless link.
11. A method as defined in claim 10 for bi-directional communication between said base station and a plurality of NIUs located at fixed locations within a cellular area.
12. A method as defined in claim 11 wherein said tuner is provided with means to receive a RF signal from at least one of said NIUs and to down convert said RF
signal to an IF signal for delivery to a demodulator in said modem.
signal to an IF signal for delivery to a demodulator in said modem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA 2276704 CA2276704A1 (en) | 1998-07-09 | 1999-06-28 | Radio interface card for a broadband wireless atm system |
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA2,242,846 | 1998-07-09 | ||
| CA002242846A CA2242846A1 (en) | 1998-07-09 | 1998-07-09 | Radio interface card for a broadband wireless atm system |
| US09/161,435 | 1998-09-24 | ||
| US09/161,435 US6356537B1 (en) | 1998-07-09 | 1998-09-24 | Radio interface card for a broadband wireless ATM system |
| CA 2276704 CA2276704A1 (en) | 1998-07-09 | 1999-06-28 | Radio interface card for a broadband wireless atm system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2276704A1 true CA2276704A1 (en) | 2000-01-09 |
Family
ID=31191511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA 2276704 Abandoned CA2276704A1 (en) | 1998-07-09 | 1999-06-28 | Radio interface card for a broadband wireless atm system |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA2276704A1 (en) |
-
1999
- 1999-06-28 CA CA 2276704 patent/CA2276704A1/en not_active Abandoned
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Dead |