Method and system for providing an active routing antenna

• US 7,221,268 B2
• Filed: 07/13/2005
• Issued: 05/22/2007
• Est. Priority Date: 08/14/2002
• Status: Active Grant

• Current Assignee: Tadaaki Chigusa
• Original Assignee: Skipper Wireless Inc.
• Inventors: Sayers, Ian, Long, Jan
• Primary Examiner(s): TRIEU, VAN THANH
• Application Number:
  US11/180,227
• Publication Number:
  US 20060035676A1
• Time in Patent Office: 678 Days
• Field of Search: 340/539.1, 340/539.21, 340/572.7, 340/286.01, 340/286.02, 455/562.1, 455/84, 455/25, 342/354, 342/373, 342/374, 375/224, 375/295, 375/347
• US Class Current: 340/539.1
• 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 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 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 panels of the plurality of antenna panels and further configured to process the transmitted and received signals; and

an antenna routing element configured to determine a destination address of a wireless destination receiver, from among a plurality of possible wireless destination receivers, using information included within one or more packets contained in signals received from a wireless source transmitter by one or more of said antenna panels of said plurality of antenna panels, generate packets destined for transmission to the determined wireless destination receiver, and route the generated packets to at least one of said one or more array control elements.

2. The antenna array of claim 1 wherein the antenna routing element includes a memory having a routing table cache containing route data to the determined destination address.

3. The antenna array of claim 2 wherein said memory comprises a content-addressable memory (CAM) indexable by said information included within the one or more packets contained in signals received from the wireless source transmitter.

4. The antenna array of claim 2 wherein said memory further includes information characterizing a direction from said plurality of antenna panels to the wireless source transmitter.

5. The antenna array of claim 1 wherein said antenna routing element is further configured to determine the destination address of a wireless destination receiver from among a plurality of possible wireless destination receivers based on a quality of service (QoS) parameter characterizing a wireless network in which the antenna array is configured.

6. The antenna array of claim 5 wherein said QoS parameter is one or more parameter(s) selected from a group consisting of link quality of wireless links in said wireless network, number of hops to a destination receiver of said plurality of destination receivers, type of data to be transmitted by said antenna array, type of data requested from said antenna array, traffic load conditions in said wireless network, congestion level of the antenna array, and type of application requesting data from said antenna array.

7. The antenna array of claim 5, further comprising means for selecting an antenna panel to transmit said generated packets from said plurality of antenna panels based on said QoS parameter.

8. The antenna array of claim 1, further comprising a control interface configured to insert quality of service (QoS) information into said generated packets, said QoS information characterizing operational capabilities or priorities of communication in a wireless network in which the antenna array is configured.

9. The antenna array of claim 1, further comprising means for determining a location of the antenna array.

10. The antenna array of claim 9 wherein the determined location includes a location relative to one or more wireless transmitters and/or receivers in a network in which the antenna array is configured.

11. The antenna array of claim 1 wherein said plurality of antenna panels is adapted to transmit and receive packet-switched signals in a time division duplexed (TDD) communication network.

12. The antenna array of claim 1 wherein said plurality of antenna panels is adapted to transmit and receive packet-switched signals in a carrier sense multiple access (CSMA) network.

13. The antenna array of claim 1 wherein said plurality of antenna panels is arranged in the form of a polygon.

14. A wireless transceiver, comprising:

an antenna array having a plurality of antenna panels;

a router element configured to receive source packets from a first carrier signal received by said antenna array from a remote wireless transmitter and configured to generate destination packets to be transmitted by a second carrier signal transmitted by said antenna array to a remote wireless receiver; and

one or more antenna control elements adapted to selectively couple said second carrier signal to one or more panels of said plurality of antenna panels, wherein which panel or panels of said plurality of antenna panels is or are selected depends on information contained within said source packets.

15. The wireless transceiver of claim 14 wherein the router element includes a memory from which a destination address of said remote wireless receiver is obtained.

16. The wireless transceiver of claim 15 wherein said memory comprises a content-addressable memory (CAM) configured to use the information contained within said source packets to provide said destination address.

17. The wireless transceiver of claim 14 wherein which panel or panels of said plurality of antenna panels is or are selected further or alternatively depends on a quality of service (QoS) parameter characterizing a wireless network in which the wireless transceiver is configured.

18. The wireless transceiver of claim 17 wherein said QoS parameter is contained within said source packets.

19. The wireless transceiver of claim 17 wherein said QoS parameter is a parameter selected from a group consisting of link quality of wireless links in said wireless network, number of hops to a destination receivers of said plurality of destination receivers, type of data to be transmitted by said wireless transceiver, type of data requested from said wireless transceiver, traffic load conditions in said wireless network, and type of application requesting data from said wireless transceiver.

20. The wireless transceiver of claim 14, further comprising a control interface configured to include quality of service (QoS) information with said destination packets, said QoS information characterizing operational capabilities or priorities of communication in a wireless network in which the wireless transceiver is configured.

21. The wireless transceiver of claim 14, further comprising means for determining a location of said wireless transceiver relative to said remote wireless transmitter.

22. The wireless transceiver of claim 14 wherein said antenna array is adapted to transmit and receive packet-switched signals in a time division duplexed (TDD) communication network.

23. The wireless transceiver of claim 14 wherein said antenna array is adapted to transmit and receive packet-switched signals in a carrier sense multiple access (CSMA) network.

24. The wireless transceiver of claim 14 wherein said antenna array is arranged in the form of a polygon.

25. A wireless receiver, comprising:

an antenna array having a plurality of antenna panels configured to receive a packet-switched signal from a wireless transmitter; and

means for determining a direction from said antenna array to said wireless transmitter by comparing measured signal strengths of the packet-switched signal received by two or more of the panels of said plurality of antenna panels.

26. The wireless receiver of claim 25 wherein said means for determining the direction from said antenna to said wireless transmitter includes determining which panel of said plurality of antenna panels receives the highest signal strength.

27. The wireless receiver of claim 25 wherein said plurality of antenna panels is arranged in the form of a polygon.

28. The wireless receiver of claim 25, further comprising means for determining a location of said wireless transceiver relative to said wireless transmitter.

29. The wireless receiver of claim 25 wherein said wireless receiver is adapted to transmit and receive packet-switched signals in a time division duplexed (TDD) communication network.

30. The wireless receiver of claim 25 wherein said wireless receiver is adapted to transmit and receive packet-switched signals in a carrier sense multiple access (CSMA) network.