Method and apparatus for adapting antenna visibility in a wireless communications unit

• US 6,823,180 B2
• Filed: 12/12/2001
• Issued: 11/23/2004
• Est. Priority Date: 12/12/2001
• Status: Active Grant

• Current Assignee: Google Technology Holdings LLC (Alphabet Inc.)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Smith, Jack Anthony, Reed, John Douglas
• Primary Examiner(s): Milord, Marceau
• Application Number:
  US10/021,755
• Publication Number:
  US 20030109217A1
• Time in Patent Office: 1,077 Days
• Field of Search: 455/305, 455/11.1, 455/13.3, 455/562, 455/101, 455/102, 455/97, 455/66, 455/73, 455/69, 455/277.1, 455/277.2, 455/562.1, 455/41.1, 455/41.2, 455/575.7, 342/374, 342/367, 342/463, 342/359, 342/373, 343/757, 343/754
• US Class Current: 455/305
• CPC Class Codes: H01Q 1/246 specially adapted for base stations
• CPC Class Codes: H04B 7/0408 using two or more beams, i.e. beam diversity
• CPC Class Codes: H04W 16/18 Network planning tools
• CPC Class Codes: H04W 84/14 WLL [Wireless Local Loop]; RLL [Radio Local Loop]

Abstract

A method within and wireless communications unit (WCU) arranged to operate in a fixed wireless network including a transceiver for receiving and transmitting signals within the network; an antenna system having adjustable visibility to the fixed wireless network; and a controller, coupled to the transceiver and the antenna system, to control the transceiver and to adjust the visibility of the antenna system such that the visibility of the WCU to the fixed wireless network is adjustable.

Claims

1. A wireless communications unit (WCU) arranged and constructed to operate in a fixed wireless network comprising in combination:

a transceiver for receiving and transmitting signals within the fixed wireless network;

an antenna system for inter-coupling said signals to said transceiver, said antenna system having adjustable visibility to the fixed wireless network wherein said antenna system is adjusted to a higher visibility when the WCU is operating in a point to multi-point mode than when the WCU is operating in a mesh network mode; and

a controller, coupled to said transceiver and said antenna system, to control said transceiver and to adjust said visibility of said antenna system such that the visibility of the WCU to the fixed wireless network is adjustable.

2. The WCU of claim 1 wherein said antenna system includes a plurality of antennas with a first antenna having greater visibility to the fixed wireless network than a second antenna.

3. The WCU of claim 1 wherein said antenna system includes a plurality of antennas where a first antenna incorporates multiple antenna elements to provide one of transmit diversity, receive diversity, beam forming, multi-stream transmission and multi-stream reception.

4. The WCU of claim 1 further including a user input output function that allows a user to initiate an adjustment of said visibility.

5. The WCU of claim 1 wherein said controller will adjust said visibility responsive to a bandwidth requirement of the WCU.

6. The WCU of claim 1 wherein said controller will adjust said visibility responsive to density of other WCUs.

7. The WCU of claim 1 wherein said controller will adjust said visibility responsive to one of a coverage requirement, a signal to interference plus noise ratio, a routing parameter, a delay requirement, and a capacity requirement.

8. The WCU of claim 7 wherein said controller will adjust said visibility responsive to a control message received from one of a network controller and another WCU.

9. The WCU of claim 7 wherein said controller will adjust said visibility subject to constraints within a control message received from a network controller.

10. In a wireless communications unit (WCU) a method of adapting visibility of the WCU to a fixed wireless network, the method including the steps of:

providing an antenna system having adjustable visibility to the fixed wireless network;

transmitting and receiving signals to and from the fixed wireless network using said antenna system; and

adjusting said visibility of said antenna system such that the visibility of the WCU to the fixed wireless network is adjusted to a higher visibility when the WCU is operating in a point to multi-point mode than when the WCU is operating in a mesh network mode.

11. The method of claim 10 wherein said providing an antenna system includes providing a plurality of antennas with a first antenna having greater visibility to the fixed wireless network than a second antenna.

12. The method of claim 10 wherein said providing an antenna system includes providing a plurality of antennas where a first antenna incorporates multiple antenna elements to provide one of the functions of transmit diversity, receive diversity, beam forming, multi-stream transmission, and multi-stream reception.

13. The method of claim 10 wherein said adjusting said visibility of said antenna system includes adjusting to a higher elevation antenna when the WCU is operating in a point to multi-point mode than when the WCU is operating in a mesh network mode.

14. The method of claim 10 wherein said step of adjusting is initiated through a user input output function of the WCU.

15. The method of claim 10 wherein said adjusting said visibility is responsive to a bandwidth requirement of the WCU.

16. The method of claim 10 wherein said adjusting said visibility is responsive to a density of other WCUs.

17. The method of claim 10 wherein said adjusting said visibility is responsive to one of a coverage requirement, a signal to interference plus noise ratio, a routing parameter, a delay requirement, and a capacity requirement.

18. The method of claim 17 wherein said adjusting said visibility is responsive to a control message received from one of a network controller and another WCU.

19. The method of claim 17 wherein said adjusting said visibility is subject to constraints within a control message received from a network controller.

20. A wireless communications unit (WCU) having adaptive visibility to a fixed wireless network that includes a plurality of wireless communications units (WCUs) comprising in combination:

a transceiver to transmit and receive signals; and

an antenna system having adjustable visibility to the fixed wireless network, said transceiver and said antenna system inter-coupled and cooperatively controlled to transmit and receive said signals to and from other WCUs in the fixed wireless network, said visibility adjusted for a first value when said transceiver is operating in a mesh network mode as a subscriber in a cluster of WCUs and a second value when said transceiver is operating in a point to multipoint mode, said second value representing higher visibility than said first value.

21. The WCU of claim 20 wherein said visibility is adjusted for said second value when said WCU is operating as a point to point access point for said cluster of WCUs.