Inter-dwelling signal management using reconfigurable antennas

• US 10,171,139 B1
• Filed: 02/02/2017
• Issued: 01/01/2019
• Est. Priority Date: 02/02/2016
• Status: Active Grant

• Current Assignee: Kyocera AVX Components Corporation (Kyocera Corporation)
• Original Assignee: Ethertronics, Inc. (Kyocera Corporation)
• Inventors: Desclos, Laurent, Pajona, Olivier
• Primary Examiner(s): Mancuso, Huedung
• Application Number:
  US15/423,565
• Time in Patent Office: 698 Days
• Field of Search: 343835
• CPC Class Codes: G06N 20/00 Machine learning
• CPC Class Codes: H01Q 1/007 specially adapted for indoor communication
• CPC Class Codes: H01Q 19/005 Patch antenna using one or more coplanar parasitic elements
• CPC Class Codes: H01Q 3/247 by switching different parts of a primary active element
• CPC Class Codes: H01Q 3/2611 Means for null steering; Adaptive interference nulling
• 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 7/043 using best eigenmode, e.g. beam forming or beam steering
• CPC Class Codes: H04B 7/0617 for beam forming
• CPC Class Codes: H04L 1/0003 by switching between different modulation schemes
• CPC Class Codes: H04L 1/0023 characterised by the signalling
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication

Abstract

A communication system utilizing reconfigurable antenna systems is described where beam steering and null forming techniques are incorporated to limit the region or volume available for communication with client devices. The communication system described restricts communication to defined or desired area and degrades signal strength coverage outside of a prescribed region. An algorithm is used to control the antenna system to monitor and control antenna system performance across the service area. This antenna system technique is applicable for use in communication systems such as a Local Area Network (LAN), cellular communication network, and Machine to Machine (M2M).

Claims

1. A communication system comprising:

a reconfigurable antenna system integrated with the communication system, the reconfigurable antenna system being capable of configuration in one selected mode selected from a plurality of possible modes, wherein the reconfigurable antenna system comprises a distinct radiation pattern when configured in each of the plurality of possible modes;

the reconfigurable antenna system being configured to transmit and receive signals with one or more client devices coupled with the communication system;

the communication system further comprising;

a processor and algorithm configured to;

establish a communication zone associated with the communication system, wherein the communication zone comprises a spatial volume surrounding the communication system and defines a perimeter within which communication with the one or more client devices is possible, and

control the selected mode of the reconfigurable antenna system, wherein the selected mode comprises a mode of the plurality of possible modes which provides optimal signal strength metric within the communication zone and minimum signal strength metric outside of the communication zone.

2. The communication system of claim 1, wherein the reconfigurable antenna system comprises a radiation pattern having a distinct shape or polarization properties in each of the plurality of possible modes.

3. The communication system of claim 1, wherein the signal strength metric comprises receive signal strength indicator (RSSI), signal to interference and noise ratio (SINR), modulation coding scheme (MCS), or channel quality indicator (CQI).

4. The communication system of claim 1, wherein the reconfigurable antenna system comprises a plurality of multi-mode reconfigurable antennas, wherein each multi-mode reconfigurable antenna is adapted to produce a distinct radiation pattern associated therewith, such that the reconfigurable antenna system is adapted to produce a plurality of radiation patterns, one for each antenna.

5. The communication system of claim 4, wherein the communication system is configured to:

establish a communication link between the reconfigurable antenna system and each of the one or more client devices;

generate a plurality of radiation modes of the reconfigurable antenna, and with each of the modes generated, survey the signal strength metric between the reconfigurable antenna system and each of the client devices, and

select a mode of the reconfigurable antenna for each client device to provide a signal strength within a pre-determined range for the communication link and to minimize signal strength outside of the communication zone.

6. The communication system of claim 4, wherein the communication system is configured to establish the communication zone by implementing a training session, the training session comprising:

establishing a communication link between the communication system and at least a first client device of the one or more client devices;

locating the first client device at three or more positions within a confined space; and

establishing a communication zone based on information communicated between the first client device and the communication system at each of the three or more positions.

7. The communication system of claim 6, wherein the communication system is configured to implement a selected mode for each antenna of the reconfigurable antenna system that achieves optimizes signal between the communication system and the first device when located at each of the three or more positions.

8. The communication system of claim 6, wherein the training session further comprises:

at each of the three or more positions;

generating a plurality of radiation modes of the reconfigurable antenna,

with each of the modes generated, measuring the signal strength metric of the communication link,

storing data associating the measured signal strength metric, mode of the reconfigurable antenna system, and location, and

repeating said generating, measuring and storing at each of the three or more locations; and

determining a mode of each reconfigurable multi-mode antenna of the reconfigurable antenna system that provides the desired signal strength metric at each position and minimizes signal strength metric outside of the communication zone.