Antenna control system and method

• US 9,924,468 B2
• Filed: 10/07/2015
• Issued: 03/20/2018
• Est. Priority Date: 12/01/2000
• Status: Expired due to Term

• Current Assignee: Apple Inc.
• Original Assignee: Intel Corporation
• Inventors: Proctor, Jr., James A.
• Primary Examiner(s): EBRAHIM, ANEZ C
• Application Number:
  US14/877,687
• Publication Number:
  US 20160029327A1
• Time in Patent Office: 895 Days
• CPC Class Codes: H04B 7/0408 using two or more beams, i.e. beam diversity
• CPC Class Codes: H04B 7/0619 using feedback from receiving side feedback signaling for adaptive modulation/coding H04L1/0001
• CPC Class Codes: H04B 7/08 at the receiving station
• CPC Class Codes: H04B 7/2628 using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA] H04B7/2618 takes precedence
• CPC Class Codes: H04W 52/146 Uplink power control
• CPC Class Codes: H04W 52/243 taking into account interferences
• CPC Class Codes: H04W 52/386 centralized, e.g. when the radio network controller or equivalent takes part in the power control
• CPC Class Codes: H04W 52/42 in systems with time, space, frequency or polarisation diversity
• CPC Class Codes: H04W 52/54 Signalisation aspects of the TPC commands, e.g. frame structure
• CPC Class Codes: H04W 52/58 Format of the TPC bits
• CPC Class Codes: H04W 88/02 Terminal devices
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

A subscriber unit, including an antenna array and an antenna array interface coupled to the antenna array, is described. Wireless transmissions, at least two of which are based on different directional transmissions from a transmitter, are received at the antenna array. Feedback messages are generated using the antenna array interface. The feedback messages are communicated using the antenna array to adjust settings of the transmitter.

Claims

1. A method in a subscriber unit having at least a processor and a memory therein, wherein the method comprises:

receiving a link quality message from a base station, wherein the link quality message is received at the subscriber unit having been transmitted over a feedback channel, the feedback channel having been partitioned into periodically repeating sequences of frames;

wherein the link quality message indicates which of multiple directional transmissions from a transmitter produces a higher quality received signal to be transmitted over a downlink channel to the subscriber unit;

adjusting antenna settings of the subscriber unit based on the link quality message received;

transmitting signals from the subscriber unit utilizing the adjusted antenna settings; and

generating, using an antenna array interface of the subscriber unit, a first type of feedback messages to control a power output level of a transmitter at the subscriber unit and a second type of feedback messages to indicate which of the at least two different directional transmissions from the transmitter supports a higher quality received signal.

2. The method in the subscriber unit as in claim 1:

wherein subscriber unit further comprises an antenna array and the antenna array interface coupled to the antenna array; and

wherein the antenna array and antenna array interface perform the receiving, adjusting, and transmitting in conjunction with the processor of the subscriber unit.

3. The method in the subscriber unit as in claim 1, further comprising:

communicating, using the antenna array, the first and second type of feedback messages over the feedback channel to adjust settings of the transmitter;

providing feedback information to one or more other subscriber units so that their corresponding transmit settings comprising at least power output levels are minimized for a particular antenna orientation and position in a shared wireless communication system.

4. The method in the subscriber unit as in claim 1, wherein the link quality message is transmitted to the subscriber unit on a forward link Code Division Multiple Access (CDMA) channel.

5. The method in the subscriber unit as in claim 4, wherein the link quality message is transmitted via a bit-puncturing technique.

6. The method in the subscriber unit as in claim 1, wherein the method further comprises transmitting a link quality message in an uplink grant message.

7. The method in the subscriber unit as in claim 1, wherein a plurality of link quality messages are transmitted to multiple subscriber units over a shared channel.

8. The method in the subscriber unit as in claim 7, wherein the shared channel is a forward link Code Division Multiple Access (CDMA) channel from a base station.

9. The method in the subscriber unit as in claim 1, wherein the link quality message provides at least a first type of feedback messages to control a power output level of the transmitter of the subscriber unit and a second type of feedback messages to indicate which of at least two different directional transmissions from the transmitter supports a higher quality received signal.

10. The method in the subscriber unit as in claim 9, wherein the subscriber unit provides feedback information to one or more other subscriber units so that their transmit settings for at least power output levels are minimized for a particular antenna orientation and position in a shared wireless communication system within which the base station, the subscriber unit, and the one or more other subscriber units operate.

11. A mobile device comprising:

an antenna array having a plurality of antennae;

a transceiver coupled with the antenna array, the transceiver to wirelessly communicate with a remote base station;

control logic coupled with the transceiver, wherein the control logic is to receive a link quality message, wherein the link quality message is received at the mobile device having been transmitted over a feedback channel, the feedback channel having been partitioned into periodically repeating sequences of frames;

wherein the link quality message indicates which of multiple directional transmissions from a transmitter produces a higher quality received signal to be transmitted over a downlink channel to the mobile device;

the control logic to further adjust antenna settings of the mobile device based on the link quality message;

the control logic to cause the transceiver to transmit signals from the mobile device utilizing the adjusted antenna settings; and

an antenna array interface of the subscriber unit to generate a first type of feedback messages to control a power output level of a transmitter at the subscriber unit and to further generate a second type of feedback messages to indicate which of the at least two different directional transmissions from the transmitter supports a higher quality received signal.

12. The mobile device of claim 11, wherein the link quality message is transmitted over a feedback channel.

13. The mobile device of claim 12, wherein the link quality message is transmitted via a bit-puncturing technique.

14. The mobile device of claim 11, further comprising:

communicating, using the antenna array, the first and second type of feedback messages over the feedback channel to adjust settings of the transmitter;

providing feedback information to one or more other mobile devices so that their corresponding transmit settings comprising at least power output levels are minimized for a particular antenna orientation and position in a shared wireless communication system.

15. The mobile device of claim 14, wherein the link quality message is transmitted via a bit-puncturing technique.

16. The mobile device of claim 11, further comprising transmitting a link quality message in an uplink grant message.

17. The mobile device of claim 11, wherein a plurality of link quality messages are transmitted to multiple subscriber units over a shared channel.

18. The mobile device of claim 17, wherein the shared channel is a forward link Code Division Multiple Access (CDMA) channel from a base station.

19. A method in a base station having at least a base station processor (BSP) and a memory therein, wherein the method comprises:

communicating from an antenna array of the base station to an antenna array of a subscriber unit;

sending a link quality message from the base station to the subscriber unit, wherein the link quality message sent to the subscriber unit is transmitted over a feedback channel, the feedback channel having been partitioned into periodically repeating sequences of frames;

wherein the link quality message indicates which of multiple directional transmissions from a transmitter produces a higher quality received signal to be transmitted over a downlink channel to the subscriber unit from the base station;

wherein the subscriber unit is to adjust its antenna settings based on the link quality message received from the base station;

wherein the subscriber unit is to transmit signals from the subscriber unit to the base station utilizing the adjusted antenna settings;

receiving the transmitted signals from the subscriber unit at the base station, the transmitted signals having been transmitted by the base station utilizing the adjusted antenna settings; and

receiving, from an antenna array interface of the subscriber unit, a first type of feedback messages to control a power output level of a transmitter at the subscriber unit and a second type of feedback messages to indicate which of the at least two different directional transmissions from the transmitter of the subscriber unit supports a higher quality received signal.

20. The method of claim 19, wherein the link quality message is transmitted via a bit-puncturing technique.

21. The method of claim 19, wherein the subscriber unit provides feedback information to one or more other subscriber units so that their transmit settings for at least power output levels are minimized for a particular antenna orientation and position in a shared wireless communication system within which the base station, the subscriber unit, and the one or more other subscriber units operate.