Multi-band wireless access point

• US 20040052227A1
• Filed: 09/16/2002
• Published: 03/18/2004
• Est. Priority Date: 09/16/2002
• Status: Active Grant

• Current Assignee: CommScope Technologies, LLC (CommScope Holding Company, Inc.)
• Original Assignee: Andrew Corporation (CommScope Holding Company, Inc.)
• Inventors: Merwe, Andria Van Der, Judd, Mano D., Maca, Gregory A.
• Granted Patent: US 7,623,868 B2
• Time in Patent Office: Days
• US Class Current: 370/334
• CPC Class Codes: H01Q 21/205 providing an omnidirectional coverage turnstile aerials H01Q21/26
• CPC Class Codes: H04L 69/18 Multiprotocol handlers, e.g. single devices capable of handling multiple protocols
• CPC Class Codes: H04L 9/40 Network security protocols
• CPC Class Codes: H04W 16/20 for indoor coverage or short range network deployment
• CPC Class Codes: H04W 88/10 adapted for operation in multiple networks, e.g. multi-mode access points

Abstract

A multi-band wireless access point includes a first antenna system including at least one antenna and having a first effective range for communicating with subscribers using a first communications protocol and a second antenna system including a plurality of antennas generally co-located with the first antenna system and having a second effective range for communicating with subscribers using a second communications protocol whereby the first and the second effective ranges are effectively coextensive. Moreover, each of the plurality of antennas in the second antenna system has a greater directivity than the at least one antenna in the first antenna system to compensate for a difference in propagation of the second communications protocol relative to the first communications protocol.

Claims

1. A multi-band wireless access point, comprising:

a first antenna system having a first effective range for communicating with subscribers using a first communications protocol, the first antenna system including at least one antenna; and

a second antenna system generally co-located with the first antenna system, the second antenna system having a second effective range for communicating with subscribers using a second communications protocol, the second antenna system including a plurality of antennas;

wherein the first and the second effective ranges are effectively coextensive.

2. The multi-band wireless access point of claim 1, wherein the first antenna system comprises an omni-directional antenna.

3. The multi-band wireless access point of claim 1, wherein the first communications protocol is 802.11b and the second communications protocol is 802.11a.

4. The multi-band wireless access point of claim 1, wherein the first communications protocol is 802.11g and the second communications protocol is 802.11a.

5. The multi-band wireless access point of claim 1, wherein the plurality of antennas in the second antenna system are arranged to provide a shaped coverage region.

6. The multi-band wireless access point of claim 1, wherein the first antenna system comprises a plurality of antennas.

7. The multi-band wireless access point of claim 6, wherein the first and the second antenna systems each comprise three directional antennas.

8. The multi-band wireless access point of claim 6, wherein the first antenna system comprises four directional antennas and the second antenna system comprises two directional antennas.

9. The multi-band wireless access point of claim 8, wherein the first communications protocol is 802.11a and the second communications protocol is 802.11b.

10. The multi-band wireless access point of claim 8, wherein the first antenna system comprises eight directional antennas and the second antenna system comprises three directional antennas.

11. The multi-band wireless access point of claim 10, wherein the first communications protocol is 802.11a and the second communications protocol is 802.11b.

12. The multi-band wireless access point of claim 1, further comprising a third antenna system generally co-located with the first and the second antenna systems, the third antenna system having a third effective range for communicating with subscribers using a third communications protocol, the third antenna system including a plurality of antennas, wherein the first, the second, and the third effective ranges are effectively coextensive.

13. The multi-band wireless access point of claim 12, wherein the first antenna system comprises an omni-directional antenna, the second antenna system comprises two directional antennas, and the third antenna system comprises four directional antennas.

14. The multi-band wireless access point of claim 12, wherein the first communications protocol is 802.11g, the second communications protocol is 802.11b, and the third communications protocol is 802.11a.

15. The multi-band access point of claim 1, wherein the first antenna system includes a first circuit, the first circuit coupled to the at least one antenna and configured to interface the at least one antenna with a wired network segment using the first communications protocol;

and, the second antenna system includes a plurality of second circuits associated with the second antenna system, the plurality of second circuits coupled to the plurality of antennas and configured to interface the plurality of antennas with the wired network segment using the second communications protocol.

16. A multi-band wireless access point, comprising:

a first antenna system for communicating with subscribers using a first communications protocol, the first antenna system including at least one antenna; and

a second antenna system generally co-located with the first antenna system, the second antenna system for communicating with subscribers using a second communications protocol, the second antenna system including a plurality of antennas;

wherein each of the plurality of antennas in the second antenna system has a greater directivity than the at least one antenna in the first antenna system to compensate for a difference in propagation of the second communications protocol relative to the first communications protocol.

17. The multi-band wireless access point of claim 16, wherein the first antenna system comprises an omni-directional antenna.

18. The multi-band wireless access point of claim 16, wherein the first communications protocol is 802.11b and the second communications protocol is 802.11a.

19. The multi-band wireless access point of claim 16, wherein the first communications protocol is 802.11g and the second communications protocol is 802.11a.

20. The multi-band wireless access point of claim 16, wherein the plurality of antennas in the second antenna system are arranged to provide a shaped coverage region.

21. The multi-band wireless access point of claim 16, wherein the first antenna system comprises a plurality of antennas.

22. The multi-band wireless access point of claim 21, wherein the first and the second antenna systems each comprise three directional antennas.

23. The multi-band wireless access point of claim 21, wherein the first antenna system comprises four directional antennas and the second antenna system comprises two directional antennas.

24. The multi-band wireless access point of claim 23, wherein the first communications protocol is 802.11a and the second communications protocol is 802.11b.

25. The multi-band wireless access point of claim 23, wherein the first antenna system comprises eight directional antennas and the second antenna system comprises three directional antennas.

26. The multi-band wireless access point of claim 25, wherein the first communications protocol is 802.11a and the second communications protocol is 802.11b.

27. The multi-band wireless access point of claim 16, further comprising a third antenna system generally co-located with the first and the second antenna systems, the third antenna system having a third effective range for communicating with subscribers using a third communications protocol, the third antenna system including a plurality of antennas, wherein the first, the second, and the third effective ranges are effectively coextensive.

28. The multi-band wireless access point of claim 27, wherein the first antenna system comprises an omni-directional antenna, the second antenna system comprises two directional antennas, and the third antenna system comprises four directional antennas.

29. The multi-band wireless access point of claim 27, wherein the first communications protocol is 802.11g, the second communications protocol is 802.11b, and the third communications protocol is 802.11a.

30. The multi-band access point of claim 16, wherein the first antenna system includes a first circuit, the first circuit coupled to the at least one antenna and configured to interface the at least one antenna with a wired network segment using the first communications protocol;

and, the second antenna system includes a plurality of second circuits associated with the second antenna system, the plurality of second circuits coupled to the plurality of antennas and configured to interface the plurality of antennas with the wired network segment using the second communications protocol.

31. An antenna arrangement, comprising:

at least one first antenna configured to operate in a first antenna system having a first effective range for communicating with subscribers using a first communications protocol; and

,

a plurality of second antennas generally co-located with the first antenna and configured to operate in a second antenna system having a second effective range for communicating with subscribers using a second communications protocol;

wherein the first and the second effective ranges are effectively coextensive.

32. The antenna arrangement of claim 31, wherein the first antenna comprises an omni-directional antenna.

33. The antenna arrangement of claim 31, wherein the plurality of second antennas are arranged to provide a shaped coverage region.

34. The antenna arrangement of claim 31, wherein the at least one first antenna comprises a plurality of first antennas.

35. The antenna arrangement of claim 31, further comprising a plurality of third antennas generally co-located with the first and second antennas, the plurality of third antennas configured to operate in a third antenna system having a third effective range for communicating with subscribers using a third communications protocol, wherein the first, the second, and the third effective ranges are effectively coextensive.

36. The antenna arrangement of claim 35, wherein the first antenna comprises an omni-directional antenna, the plurality of second antennas comprises two directional antennas, and the plurality of third antennas comprises four directional antennas.

37. A method of upgrading a wireless network of the type including a wireless access point, the wireless access point of the type including a first antenna system having a first effective range for communicating with subscribers using a first communications protocol, the first antenna system including at least one antenna, the method comprising:

installing a second antenna system generally co-located with the first antenna system, the second antenna system having a second effective range for communicating with subscribers using a second communications protocol, the second antenna system including a plurality of antennas;

wherein the first and second effective ranges are effectively coextensive.

38. The method of claim 37, wherein the first antenna system includes a first circuit, the first circuit coupled to the at least one antenna and configured to interface the at least one antenna with a wired network segment using the first communications protocol, the method further comprising:

installing a plurality of second circuits, the plurality of second circuits coupled to the plurality of second antennas and configured to interface the plurality of second antennas with the wired network segment using the second communications protocol.

39. The method of claim 37, further comprising:

upgrading a plurality of wireless access points in a coverage area by installing a plurality of second antenna systems, each generally co-located with a respective first antenna system, the second antenna systems each having a second effective range for communicating with subscribers using a second communications protocol, the plurality of second antenna systems each including a plurality of antennas, such that the effective coverage area of the wireless network for the second communications protocol is effectively coextensive with that of the first communications protocol without the addition of additional wireless access points in the coverage area.

40. A method of operation for a multi-band wireless access point, comprising:

communicating with subscribers using a first communications protocol and a first antenna system having a first effective range; and

,

concurrently communicating with subscribers using a second communications protocol and a second antenna system co-located with the first antenna system and having a second effective range;

wherein the first and second effective ranges are effectively coextensive.

41. A multi-band wireless access point, comprising:

a first antenna system having a first effective range for communicating with subscribers using an 802.11b compatible communications protocol, the first antenna including an omni-directional antenna; and

a second antenna system generally co-located with the first antenna system, the second antenna system having a second effective range for communication with subscribers using an 802.11a compatible communications protocol, the second antenna system including four directional antennas.

42. A multi-band wireless access point, comprising:

a first antenna system having a first effective range for communicating with subscribers using an 802.11g compatible communications protocol, the first antenna including an omnidirectional antenna;

a second antenna system generally co-located with the first antenna system, the second antenna system having a second effective range for communication with subscribers using an 802.11b compatible communications protocol, the second antenna system including two directional antennas; and

a third antenna system generally co-located with the first and second antenna systems, the third antenna system having a third effective range for communicating with subscribers using an 802.11a compatible communications protocol, the third antenna system including four directional antennas.

43. A multi-band wireless access point, comprising:

a first antenna system having a first effective range for communicating with subscribers using an 802.11g compatible communications protocol, the first antenna including an omni-directional antenna; and

a second antenna system generally co-located with the first antenna system, the second antenna system having a second effective range for communication with subscribers using an 802.11a compatible communications protocol, the second antenna system including four directional antennas.

44. A multi-band wireless access point, comprising:

a first antenna system having a first effective range for communicating with subscribers using the 802.11a communications protocol, the first antenna including three directional antennas; and

a second antenna system generally co-located with the first antenna system, the second antenna system having a second effective range for communication with subscribers using the 802.11g communications protocol, the second antenna system including three directional antennas.

45. A multi-band wireless access point, comprising:

a first antenna system having a first effective range for communicating with subscribers using an 802.11b compatible communications protocol, the first antenna including two directional antennas; and

a second antenna system generally co-located with the first antenna system, the second antenna system having a second effective range for communication with subscribers using an 802.11a compatible communications protocol, the second antenna system including four directional antennas.

46. A multi-band wireless access point, comprising:

a first antenna system having a first effective range for communicating with subscribers using an 802.11b compatible communications protocol, the first antenna including three directional antennas; and

a second antenna system generally co-located with the first antenna system, the second antenna system having a second effective range for communication with subscribers using an 802.11a compatible communications protocol, the second antenna system including eight directional antennas;

wherein the first and the second effective ranges are effectively coextensive.