METHOD AND SYSTEM FOR PROVIDING AN ACTIVE ROUTING ANTENNA

• US 20060071794A1
• Filed: 07/31/2003
• Published: 04/06/2006
• Est. Priority Date: 08/14/2002
• Status: Active Grant

• Current Assignee: Tadaaki Chigusa
• Original Assignee: Kataname, Inc.
• Inventors: Sayers, Ian, Long, Jan
• Granted Patent: US 7,015,809 B1
• Time in Patent Office: Days
• US Class Current: 340/572.700
• CPC Class Codes: H01Q 1/246 specially adapted for base stations
• CPC Class Codes: H01Q 21/205 providing an omnidirectional coverage turnstile aerials H01Q21/26
• CPC Class Codes: H01Q 3/242 Circumferential scanning
• CPC Class Codes: H04B 7/0686 Hybrid systems, i.e. switching and simultaneous transmission
• CPC Class Codes: H04B 7/0868 Hybrid systems, i.e. switching and combining
• CPC Class Codes: H04L 63/0853 using an additional device, e.g. smartcard, SIM or a different communication terminal cryptographic mechanisms or cryptographic arrangements for entity authentication involving additional secure or trusted devices H04L9/3234
• CPC Class Codes: H04W 40/06 based on characteristics of available antennas
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

An array antenna is disclosed. In one embodiment, the array antenna facilitates transmission of data with amongst fixed radio units. The array antenna includes a number of antenna panels arranged in an hexagonal shape, one or more array control elements controlling the antenna panels, and one antenna routing element controlling the one or more array control elements.

Claims

1. An array antenna comprising:

a plurality of antenna panels each configured to transmit and receive signals;

one or more array control elements, each array control element configured to couple to at least one antenna panel or to couple via a switch to any one of the plurality of antenna panels and further configured to process the transmitted and received signals; and

an antenna routing element configured to

communicate with the one or more array control elements;

route packets generated based on the received signals and to forward packets that are destined for transmission; and

issue a “

disconnect”

message when the array antenna is powered down.

2. The array antenna of claim 1 wherein the plurality of antenna panels are arranged in a hexagonal configuration.

3. A fixed radio unit incorporating the array antenna as recited in claim 1.

4. The array antenna of claim 1 wherein two or more of the plurality of antenna panels are capable of being used simultaneously for transmitting respective signals.

5. The array antenna of claim 1 wherein at least one of the array control element includes:

a switch coupled to an antenna panel;

a low noise amplifier coupled to the switch to receive the received signals from the antenna panel and generate an output;

an I/Q down converter configured to receive the output from the low noise amplifier and generate a first output and a second output;

a demodulator configured to receive the first and second outputs from the I/Q down converter and generate a received packet;

a modulator configured to receive a packet to be transmitted and generate a first output and a second output based on the packet to be transmitted;

an I/Q up converter configured to receive the first and second outputs from the modulator and generate an output; and

a power amplifier configured to receive the output from the I/Q converter and generate an output, the power amplifier further coupled to the switch to forward its output to the antenna panel for transmission;

wherein the switch is controlled by logic to couple the antenna panel to either the low noise amplifier or the power amplifier depending on whether signals are to be received or transmitted.

6. The array antenna of claim 5 wherein the antenna routing element is further configured to generate and forward the packet to be transmitted to the one or more array control elements for transmission;

wherein the antenna routing element further includes a routing table having routing information; and

wherein the antenna routing element is further configured to receive the received packet from the at least one of the array control elements and forward the received packet based on routing information in the routing table.

7. The array antenna of claim 5 wherein the received packet includes header and payload information;

and

wherein the header information includes information relating to a quality of service for the received packet.

8. An integrated circuit having the one or more array control elements and the antenna routing element as recited in claim 1.

9. The array antenna of claim 1 wherein the antenna routing element is further configured to check the validity of the packets generated based on the received signals before such packets are routed further.

10. The array antenna of claim 1 wherein the one or more array control elements are assigned respective transmission priorities;

and

wherein the antenna routing element is further configured to forward the packets destined for transmission to the one or more array control elements depending on a quality of service criterion associated with each packet.

12. The array antenna of claim 1 wherein the antenna routing element is further configured to determine signal quality of the received signals.

13. The. array antenna of claim 1 wherein the antenna routing element is further configured to determine signal strength of the received signals.

14. The array antenna of claim 1 wherein the antenna routing element is further configured to provide encryption and decryption capabilities for use in connection with the transmitted and received signals.

11. (canceled)

15. A fixed radio unit having an array antenna, the array antenna comprising:

a plurality of antenna panels each configured to transmit and receive signals;

one or more array control elements, each array control element configured to couple to one or more antenna panels and further configured to process the transmitted and received signals; and

an antenna routing element configured to;

communicate with the one or more array control elements;

route packets generated based on the received signals and to forward packets that are destined for transmission; and

issue a “

disconnect”

message when the array antenna is powered down.

16. The array antenna of claim 15 wherein the plurality of antenna panels are arranged in a hexagonal configuration.

17. The array antenna of claim 15 wherein at least one of the one or more array control elements is further configured to couple via a switch to any one of the plurality of antenna panels.

18. The array antenna of claim 15 wherein two or more of the plurality of antenna panels are capable of becoming active for transmitting respective signals.

19. The array antenna of claim 15 wherein at least one of the array control element includes:

a switch coupled to an antenna panel;

a low noise amplifier coupled to the switch to receive the received signals from the antenna panel and generate an output;

an I/Q down converter configured to receive the output from the low noise amplifier and generate a first output and a second output;

a demodulator configured to receive the first and second outputs from the I/Q down converter and generate a received packet;

a modulator configured to receive a packet to be transmitted and generate a first output and a second output based on the packet to be transmitted;

an I/Q up converter configured to receive the first and second outputs from the modulator and generate an output; and

a power amplifier configured to receive the output from the I/Q converter and generate an output, the power amplifier further coupled to the switch to forward its output to the antenna panel for transmission;

wherein the switch is controlled by logic to couple the antenna panel to either the low noise amplifier or the power amplifier depending on whether signals are to be received or transmitted.

20. The array antenna of claim 19 wherein the antenna routing element is further configured to generate and forward the packet to be transmitted to the one or more array control elements for transmission;

wherein the antenna routing element further includes a routing table having routing information; and

wherein the antenna routing element is further configured to receive the received packet from the at least one of the array control elements and forward the received packet based on routing information in the routing table.

21. The array antenna of claim 19 wherein the received packet includes header and payload information;

and

wherein the header information includes information relating to a quality of service for the received packet.

22. An integrated circuit having the one or more array control elements and the antenna routing element as recited in claim 15.

23. The array antenna of claim 15 wherein the antenna routing element is further configured to check the validity of the packets generated based on the received signals before such packets are routed further.

24. The array antenna of claim 15 wherein the one or more array control elements are assigned respective transmission priorities;

and

wherein the antenna routing element is further configured to forward the packets destined for transmission to the one or more array control elements depending on a quality of service criterion associated with each packet.

26. The array antenna of claim 15 wherein the antenna routing element is further configured to determine signal quality of the received signals.

27. The array antenna of claim 15 wherein the antenna routing element is further configured to determine signal strength of the received signals.

28. The array antenna of claim 15 wherein the antenna routing element is further configured to provide encryption and decryption capabilities for use in connection with the transmitted and received signals.

25. (canceled)

29. An array antenna comprising:

a plurality of antenna panels each configured to transmit and receive signals;

an array control element configured to couple via a switch to one or more of the plurality of antenna panels and further configured to process the transmitted and received signals; and

an antenna routing element configured to;

communicate with the array control element;

route packets generated based on the received signals and forward packets that are destined for transmission; and

issue a “

disconnect”

message when the array antenna is powered down.

30. The array antenna of claim 29 wherein the plurality of antenna panels are arranged in a hexagonal configuration.

31. A fixed radio unit incorporating the array antenna as recited in claim 29.

32. The array antenna of claim 29 wherein two or more of the plurality of antenna panels are capable of becoming active for transmitting respective signals.

33. The array antenna of claim 29 wherein the array control element includes:

a switch coupled to one of the plurality of antenna panels;

a low noise amplifier coupled to the switch to receive the received signals from one of the plurality of antenna panels and generate an output;

an I/Q down converter configured to receive the output from the low noise amplifier and generate a first output and a second output;

a demodulator configured to receive the first and second outputs from the I/Q down converter and generate a received packet;

a modulator configured to receive a packet to be transmitted and generate a first output and a second output based on the packet to be transmitted;

an I/Q up converter configured to receive the first and second outputs from the modulator and generate an output; and

a power amplifier configured to receive the output from the I/Q converter and generate an output, the power amplifier further coupled to the switch to forward its output to one of the plurality of antenna panels for transmission;

wherein the switch is controlled by logic to couple one of the plurality of antenna panels to either the low noise amplifier or the power amplifier depending on whether signals are to be received or transmitted.

34. The array antenna of claim 33 wherein the antenna routing element is further configured to generate and forward the packet to be transmitted to the array control element for transmission;

wherein the antenna routing element further includes a routing table having routing information; and

wherein the antenna routing element is further configured to receive the received packet from the array control element and forward the received packet based on routing information in the routing table.

35. The array antenna of claim 33 wherein the received packet includes header and payload information;

and

wherein the header information includes information relating to a quality of service for the received packet.

36. An integrated circuit having the array control element and the antenna routing element as recited in claim 29.

37. The array antenna of claim 29 wherein the antenna routing element is further configured to check the validity of the packets generated based on the received signals before such packets are routed further.

38. The array antenna of claim 29 wherein the plurality of antenna panels are assigned respective transmission priorities;

wherein the antenna routing element is further configured to forward the packets destined for transmission to the array control element; and

wherein the array control element is further configured to forward the packets destined for transmission to the plurality of antenna panels depending on a quality of service criterion associated with each packet.

40. The array antenna of claim 29 wherein the antenna routing element is further configured to determine signal quality of the received signals.

41. The array antenna of claim 29 wherein the antenna routing element is further configured to determine signal strength of the received signals.

42. The array antenna of claim 29 wherein the antenna routing element is further configured to provide encryption and decryption capabilities for use in connection with the transmitted and received signals.

39. (canceled)