SHORT-RANGE CELLULAR BOOSTER

• US 20090325481A1
• Filed: 04/10/2009
• Published: 12/31/2009
• Est. Priority Date: 04/10/2009
• Status: Active Grant

• Current Assignee: Nextivity Incorporated
• Original Assignee: Nextivity Incorporated
• Inventors: Mohebbi, Behzad
• Granted Patent: US 8,086,174 B2
• Time in Patent Office: Days
• US Class Current: 455/15
• CPC Class Codes: H04B 7/1555 Selecting relay station antenna mode, e.g. selecting omnidirectional -, directional beams, selecting polarizations
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: Y02D 30/70 in wireless communication networks

Abstract

A repeater mediates traffic between a network transceiver and a user transceiver in a wireless communication system. The repeater comprises a network unit that maintains a network link with the network transceiver, a user unit that maintains a user link with the user transceiver, a two-way communication pathway between the network unit and the user unit; that facilitate the communication of signals between the network transceiver and the user transceiver in autonomous repeater hops between the network transceiver and the network unit, between the user transceiver and the user unit, and between the network unit and the user unit, and beam-formers respectively coupled to the network unit and the user unit and adapted to communicate signals in an operating frequency band of the network and user transceivers and to control effective radiated power.

Claims

1-44. -44. (canceled)

45. A method for mediating wireless communications between a network transceiver and a user transceiver in a wireless communication system, the method comprising:

generating a two-way communication pathway between a network unit and a user unit to facilitate signal communication between the network transceiver and the user transceiver in separate repeater hops between the network transceiver and the network unit, between the user transceiver and the user unit, and between the network unit and the user unit; and

communicating signals to each of the network unit and the user unit in an operating frequency band of the network transceiver or user transceiver respectively such that radio frequency isolation between the network unit and the user unit is maximized, and the signal communication between the network unit and the user unit has a signal waveform that is independent of the operating frequency band of the signal communication between the network and user transceivers.

46. The method in accordance with claim 45, wherein communicating signals to each of the network unit and the user unit includes beam-forming the signals to each of the network unit and the user unit.

47. The method in accordance with claim 45, wherein communicating the signals to each of the network unit and the user unit includes controlling an effective radiated power to increase coverage area of the riser unit.

48. The method in accordance with claim 45, wherein communicating signals to each of the network unit and the user unit includes controlling an effective radiated power to improve link quality of the network unit.

49. The method in accordance with claim 45, wherein communicating signals to each of the network unit and the user unit includes using transmit antennas at the network and user transceiver operating frequency, and using beam-formers to control an effective radiated power of the network unit and user unit to increase coverage area of the user unit.

50. The method in accordance with claim 45, wherein communicating signals to each of the network unit and the user unit includes using receiver antennas at the network and user transceiver operating frequency, and using beam-formers to control antenna radiation patterns of the network unit and user unit to increase coverage area of the user unit.

51. The method in accordance with claim 45, wherein the repeater hop between the network unit and the user unit is tuned to operate at a frequency band selected from a group consisting of an Unlicensed National Information Infrastructure (U-ISM) spectrum frequency band, an Unlicensed Personal Communication Services (U-PCS) spectrum frequency band, an Industrial, Scientific and Medical (ISM) spectrum frequency band, and any unlicensed frequency band.

52. The method in accordance with claim 45, further comprising compensating for propagation losses between the network unit and user unit alone using a gain controller.

53. The method in accordance with claim 45, wherein the repeater hop between the network unit and the user unit on the communication pathway communicates on a carrier signal that is independent of signals communicated between the repeater and the network and user transceivers.

54. The method in accordance with claim 45, wherein the repeater hop between the network unit and the user unit on the communication pathway communicates at a carrier frequency that is independent of signals communicated between the repeater and the network and user transceivers.

55. The method in accordance with claim 45, wherein the repeater hop between the network unit and the user unit on the communication pathway communicates with a signal waveform that is independent of signal waveform communicated between the repeater and the network and user transceivers.

56. The method in accordance with claim 45, wherein dedicated wireless data and/or control links in the communication pathway between the network unit and the user unit operate at unlicensed frequency bands.

57. The method in accordance with claim 45, wherein dedicated wireless data and/or control links in the communication pathway between the network unit and the user unit operate according to a wireless standard.

58. The method in accordance with claim 45, wherein dedicated wireless data and/or control links in the communication pathway between the network unit and the user unit are power-controlled for operation at reduced transmit power.

59. The method in accordance with claim 45, wherein the network unit and/or the user unit comprise:

a pair of antennas; and

a switch connected to the pair of antennas that performs switching operations for transmit/receive operations enabling switched antenna diversity in all or some of the separate repeater hops.

60. A method for mediating wireless communications between a network transceiver and a user transceiver in a wireless communication system, the method comprising:

establishing a network link with the network transceiver;

establishing a user link with the user transceiver;

generating a two-way communication pathway between a network unit and a user unit to facilitate signal communication between the network transceiver and the user transceiver in separate repeater hops between the network transceiver and the network unit, between the user transceiver and the user unit, and between the network unit and the user unit; and

communicating signals to each of the network unit and the user unit in an operating frequency band of the network transceiver or user transceiver respectively such that radio frequency isolation between the network unit and the user unit is maximized, the signal communication on the network link and the user link having a signal waveform that is independent of the operating frequency band of the signal communication between the network and user transceivers.

61. The method in accordance with claim 60, wherein the repeater hop between the network unit and the user unit is tuned to operate at a frequency band selected from a group consisting of an Unlicensed National Information Infrastructure (U-ISM) spectrum frequency band, an Unlicensed Personal Communication Services (U-PCS) spectrum frequency band, an Industrial, Scientific and Medical (ISM) spectrum frequency band, and any unlicensed frequency band.

62. The method in accordance with claim 60, wherein the repeater hop between the network unit and the user unit on the communication pathway communicates with a signal waveform that is independent of signal waveform communicated between the repeater and the network and user transceivers.

63. A repeater that mediates communication between a network transceiver and a user transceiver in a wireless communication system, the repeater comprising:

a network unit that communicates with the network transceiver;

a user unit that communicates with the user transceiver;

a two-way communication pathway between the network unit and the user unit to facilitate signal communication between the network transceiver and the user transceiver in separate repeater hops between the network transceiver and the network unit, between the user transceiver and the user unit, and between the network unit and the user unit; and

a signal processing unit respectively coupled to the network unit and the user unit, each signal processing unit to communicate signals in an operating frequency band of the network and user transceivers, and to control effective radiated power of the signals;

the communication between the network unit and the user unit having a signal waveform that is independent of the operating frequency band of the communication between the network and user transceivers.