Methods and apparatus for overlapping MIMO physical sectors

• US 9,496,931 B2
• Filed: 11/25/2015
• Issued: 11/15/2016
• Est. Priority Date: 02/28/2006
• Status: Active Grant

• Current Assignee: Woodbury Wireless LLC
• Original Assignee: Woodbury Wireless LLC
• Inventors: Lastinger, Roc, Spenik, John, Woodbury, Brian C.
• Primary Examiner(s): Ly, Nghi H
• Application Number:
  US14/952,867
• Publication Number:
  US 20160080049A1
• Time in Patent Office: 356 Days
• Field of Search: 370/338, 370/328, 455/422.1, 455/424, 455/443, 455/452.2
• US Class Current: 1/1
• CPC Class Codes: H04B 17/15 Performance testing
• CPC Class Codes: H04B 7/024 Co-operative use of antennas of several sites, e.g. in co-ordinated multipoint or co-operative multiple-input multiple-output [MIMO] systems
• CPC Class Codes: H04B 7/0413 MIMO systems
• CPC Class Codes: H04B 7/0456 Selection of precoding matrices or codebooks, e.g. using matrices antenna weighting
• CPC Class Codes: H04B 7/0495 using overlapping sectors in the same base station to implement MIMO for antennas

Abstract

A method is provided comprising: providing access to a single wireless cell configured to operate in a packet-switched cellular network, the single wireless cell including: a first transmission point with a multiple-input-multiple-output (MIMO) capability; and a second transmission point with a MIMO capability; cooperating with a MIMO-capable portable wireless device; receiving first information from the first MIMO-capable portable wireless device that is based on the measurement of the first interference; receiving second information from the first MIMO-capable portable wireless device that is based on the measurement of the second interference; altering at least one aspect of a first transmission; and transmitting data during the first transmission to the first MIMO-capable portable wireless device, utilizing at least one of: the multiple first directional antennas of the first transmission point with the MIMO capability, or the multiple second directional antennas of the second transmission point with the MIMO capability.

Claims

1. A method, comprising:

providing access to a single wireless station configured to operate in a packet-switched cellular network, the single wireless station including;

a first transmission point with a multiple-input-multiple-output (MIMO) capability, the first transmission point having;

a plurality of first directional antennas,

at least one first radio in communication with the first directional antennas, and

first circuitry in communication with the at least one first radio; and

a second transmission point with a multiple-input-multiple-output (MIMO) capability, the second transmission point having;

a plurality of second directional antennas,

at least one second radio in communication with the second directional antennas, and

second circuitry in communication with the at least one second radio;

cooperating with a multiple-input-multiple-output (MIMO)-capable portable wireless device including;

a plurality of mobile device directional antennas,

at least one mobile device radio in communication with the mobile device directional antennas, and

mobile device circuitry in communication with the at least one mobile device radio, said multiple-input-multiple-output (MIMO)-capable portable wireless device configured for;

measuring a first interference for the first transmission point with the multiple-input-multiple-output (MIMO) capability of the single wireless station, utilizing at least one of the mobile device directional antennas, and

measuring a second interference for the second transmission point with the multiple-input-multiple-output (MIMO) capability of the single wireless station, utilizing at least one of the mobile device directional antennas;

receiving first information from the multiple-input-multiple-output (MIMO)-capable portable wireless device that is based on the measurement of the first interference;

receiving second information from the multiple-input-multiple-output (MIMO)-capable portable wireless device that is based on the measurement of the second interference;

altering at least one aspect of a first transmission utilizing at least one of;

multiple of the first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability, or multiple of the second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability, based on the first information and the second information; and

transmitting data during the first transmission to the multiple-input-multiple-output (MIMO)-capable portable wireless device, utilizing at least one of;

the multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability, or the multiple second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability.

2. The method of claim 1, wherein the first interference and the second interference are measured utilizing different ones of the mobile device directional antennas.

3. The method of claim 1, wherein the first directional antennas and the second directional antennas include multiple-input-multiple-output (MIMO) antennas.

4. The method of claim 1, wherein at least one of the first information or the second information is a function of at least one of:

a data throughput, a signal-to-noise ratio, a reduced signal error, a reduced data error, a reduced retransmission request, a reduced interference, a rejection of multipath signal, a higher transmission rate, or a signal strength, associated with the multiple-input-multiple-output (MIMO)-capable portable wireless device.

5. The method of claim 1, and further comprising communicating with the multiple-input-multiple-output (MIMO)-capable portable wireless device via a same channel, utilizing the first transmission point with the multiple-input-multiple-output (MIMO) capability and the second transmission point with the multiple-input-multiple-output (MIMO) capability, but with each of the first transmission point and the second transmission point exhibiting at least one different channel characteristic.

6. The method of claim 5, wherein the at least one different channel characteristic includes at least one of:

a channel characteristic that is throughput-related, a channel characteristic that is signal-to-noise ratio-related, a channel characteristic that is signal strength-related, or a channel characteristic that is multipath signal-related, in connection with the same channel.

7. The method of claim 5, wherein the at least one different channel characteristic includes at least two of:

a channel characteristic related to a throughput-related aspect, a channel characteristic related to a signal-to-noise ratio-related aspect, a channel characteristic related to a signal strength-related aspect, and a channel characteristic related to a multipath signal-related aspect.

8. The method of claim 5, wherein the at least one different channel characteristic includes at least three of:

a channel characteristic that is throughput-related, a channel characteristic that is signal-to-noise ratio-related, a channel characteristic that is signal strength-related, and a channel characteristic that is multipath signal-related.

9. The method of claim 5, wherein the at least one different channel characteristic includes at least four of:

a channel characteristic related to a throughput-related aspect, a channel characteristic related to a signal-to-noise ratio-related aspect, a channel characteristic related to a signal strength-related aspect, and a channel characteristic related to a multipath signal-related aspect.

10. The method of claim 1, wherein the altering the at least one aspect includes selecting both the multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability and the multiple second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability for the first transmission to the multiple-input-multiple-output (MIMO)-capable portable wireless device, and the same data is transmitted to the multiple-input-multiple-output (MIMO)-capable portable wireless device via a same channel, utilizing both the multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability and the multiple second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability.

11. The method of claim 1, wherein the altering the at least one aspect includes selecting only one of:

the multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability, or the multiple second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability for the first transmission to the multiple-input-multiple-output (MIMO)-capable portable wireless device, and the data is transmitted to the multiple-input-multiple-output (MIMO)-capable portable wireless device, utilizing only the selected one of;

the multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability, or the multiple second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability.

12. The method of claim 1, and further comprising selectively directing a beam associated with the first transmission to improve the transmission of the data by addressing interference.

13. The method of claim 1, wherein the altering the at least one aspect includes altering beamforming utilizing at least one of:

the multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability, or the multiple second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability for the first transmission to the multiple-input-multiple-output (MIMO)-capable portable wireless device, and the data is transmitted to the multiple-input-multiple-output (MIMO)-capable portable wireless device, utilizing the beamforming with the at least one of;

the multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability, or the multiple second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability.

14. The method of claim 13, wherein the beamforming involves weighting and the altering is performed to improve the first transmission independent of a handoff.

15. The method of claim 1, wherein at least one of:

said first directional antennas are multiple-input-multiple-output (MIMO) antennas;

said second directional antennas are multiple-input-multiple-output (MIMO) antennas;

said first directional antennas and the second directional antennas reduce the effects of noise on transmission and reception;

said first directional antennas exhibit temporal diversity;

said second directional antennas exhibit temporal diversity;

said at least one first radio is in communication with the first directional antennas via at least one switch;

said at least one first radio is in communication with the first directional antennas via at least one phased array;

said at least one first radio includes a single radio that is in communication with the plurality of first directional antennas;

said at least one second radio is in communication with the second directional antennas via at least one switch;

said at least one second radio is in communication with the second directional antennas via at least one phased array;

said at least one second radio includes a single radio that is in communication with the plurality of second directional antennas;

said first circuitry includes at least one controller;

said second circuitry includes at least one controller;

said first transmission point includes a first portion and the second transmission point includes a second portion;

said first transmission point includes a first part and the second transmission point includes a second part;

said first transmission point includes a first group and the second transmission point includes a second group;

said single wireless station includes a single wireless cell;

said single wireless station includes at least one wireless cell;

said altering is performed by third circuitry;

said altering includes selecting both the multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability and the multiple second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability;

said altering the at least one aspect includes altering the at least one aspect in connection with only the multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability;

said transmitting the data in connection with the first transmission to the multiple-input-multiple-output (MIMO)-capable portable wireless device includes transmitting the data utilizing the multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability;

said first directional antennas and the second directional antennas have associated therewith a multiple-input-multiple-output (MIMO) virtual sector including an area where a multiple-input-multiple-output (MIMO) physical sector is to operate;

said first directional antennas and the second directional antennas form multiple-input-multiple-output (MIMO) virtual sectors that are capable of being selected to provide multiple-input-multiple-output (MIMO) physical sectors;

said first directional antennas and the second directional antennas are positioned in fixed positions to form multiple-input-multiple-output (MIMO) virtual sectors that are capable of being selected to communicate using one or more multiple-input-multiple-output (MIMO) physical sectors associated with the multiple-input-multiple-output (MIMO) virtual sectors;

said multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability include all of the first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability, the multiple second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability include all of the second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability;

or

said multiple-input-multiple-output (MIMO)-capable portable wireless device includes at least one of a mobile device, a client, a computer, or a hand-held device.

16. A method, comprising:

providing access to a single wireless station configured to operate in a packet-switched cellular network, the single wireless station including;

a first transmission point with a multiple-input-multiple-output (MIMO) capability, the first transmission point having;

a plurality of first directional antennas,

at least one first radio in communication with the first directional antennas, and

first circuitry in communication with the at least one first radio; and

a second transmission point with a multiple-input-multiple-output (MIMO) capability, the second transmission point having;

a plurality of second directional antennas,

at least one second radio in communication with the second directional antennas, and

second circuitry in communication with the at least one second radio; and

cooperating with a multiple-input-multiple-output (MIMO)-capable portable wireless device including;

a plurality of mobile device directional antennas,

at least one mobile device radio in communication with the mobile device directional antennas, and

mobile device circuitry in communication with the at least one mobile device radio, said multiple-input-multiple-output (MIMO)-capable portable wireless device configured for;

measuring a first interference in connection with the first transmission point with the multiple-input-multiple-output (MIMO) capability of the single wireless station, utilizing at least one of the mobile device directional antennas, and

measuring a second interference in connection with the second transmission point with the multiple-input-multiple-output (MIMO) capability of the single wireless station, utilizing at least one of the mobile device directional antennas;

receiving first information from the multiple-input-multiple-output (MIMO)-capable portable wireless device that is based on the measurement of the first interference;

receiving second information from the multiple-input-multiple-output (MIMO)-capable portable wireless device that is based on the measurement of the second interference;

performing beamforming in connection with a first transmission utilizing at least one of;

multiple of the first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability, or multiple of the second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability, based on the first information and the second information; and

transmitting data in connection with the first transmission to the multiple-input-multiple-output (MIMO)-capable portable wireless device, utilizing the beamforming in connection with at least one of;

the multiple first directional antennas of the first transmission point with the multiple-input-multiple-output (MIMO) capability, or the multiple second directional antennas of the second transmission point with the multiple-input-multiple-output (MIMO) capability.

17. The method of claim 16, and further comprising:

communicating with the multiple-input-multiple-output (MIMO)-capable portable wireless device utilizing a same channel, utilizing the first transmission point with the multiple-input-multiple-output (MIMO) capability and the second transmission point with the multiple-input-multiple-output (MIMO) capability, where each of the first transmission point with the multiple-input-multiple-output (MIMO) capability and the second transmission point with the multiple-input-multiple-output (MIMO) capability, despite utilizing the same channel, exhibits at least one different channel characteristic that is a function of at least two of;

a channel characteristic that is throughput-related, a channel characteristic that is signal-to-noise ratio-related, a channel characteristic that is signal strength-related, or a channel characteristic that is multipath signal-related.

18. A method, comprising:

providing access to a packet-switched cellular network including;

a plurality of wireless cells each including;

a first part with a multiple-input-multiple-output (MIMO) capability, the first part having;

a plurality of first directional antennas,

at least one first radio in communication with the first directional antennas, and

first circuitry in communication with the at least one first radio; and

a second part with a multiple-input-multiple-output (MIMO) capability, the second part having;

a plurality of second directional antennas,

at least one second radio in communication with the second directional antennas, and

second circuitry in communication with the at least one second radio; and

a multiple-input-multiple-output (MIMO)-capable portable wireless device including;

a plurality of mobile device directional antennas,

at least one mobile device radio in communication with the mobile device directional antennas, and

mobile device circuitry in communication with the at least one mobile device radio, said multiple-input-multiple-output (MIMO)-capable portable wireless device configured for;

 

measuring a first interference in connection with the first part with the multiple-input-multiple-output (MIMO) capability of a particular wireless cell, utilizing at least one of the mobile device directional antennas, and

 

measuring a second interference in connection with the second part with the multiple-input-multiple-output (MIMO) capability of the particular wireless cell, utilizing at least one of the mobile device directional antennas;

receiving first information from the multiple-input-multiple-output (MIMO)-capable portable wireless device that is a function of the measurement of the first interference;

receiving second information from the multiple-input-multiple-output (MIMO)-capable portable wireless device that is a function of the measurement of the second interference;

coordinating utilization of at least one of multiple of the first directional antennas of the first part with the multiple-input-multiple-output (MIMO) capability, or multiple of the second directional antennas of the second part with the multiple-input-multiple-output (MIMO) capability, as a function of the first information and the second information; and

communicating data in connection with a first transmission to the multiple-input-multiple-output (MIMO)-capable portable wireless device, utilizing at least one of;

the multiple first directional antennas of the first part with the multiple-input-multiple-output (MIMO) capability, or the multiple second directional antennas of the second part with the multiple-input-multiple-output (MIMO) capability.

19. The method of claim 18, wherein a channel between the first part and the multiple-input-multiple-output (MIMO)-capable portable wireless device differs from another channel between the second part and the multiple-input-multiple-output (MIMO)-capable portable wireless device in terms of at least one channel characteristic that includes at least one of:

a channel characteristic that is throughput-related, a channel characteristic that is signal-to-noise ratio-related, a channel characteristic that is signal strength-related, or a channel characteristic that is multipath signal-related.

20. The method of claim 18, wherein a channel between the first part and the multiple-input-multiple-output (MIMO)-capable portable wireless device differs from another channel between the second part and the multiple-input-multiple-output (MIMO)-capable portable wireless device in terms of at least two channel characteristics that include at least two of:

a channel characteristic that is throughput-related, a channel characteristic that is signal-to-noise ratio-related, a channel characteristic that is signal strength-related, and a channel characteristic that is multipath signal-related.