SYSTEM AND METHOD FOR TRANSMIT AND RECEIVE ANTENNA PATTERNS CALIBRATION FOR TIME DIVISION DUPLEX (TDD) SYSTEMS
First Claim
1. A method of configuring a station in a communications network comprising at least two antennas configured to operate together for both transmitting and receiving modes, and a plurality of radio circuits configured to transmit and receive via said antennas in a time division duplex (TDD) communication protocol, the method comprising:
- determining a phase setting difference between the transmit and receive antenna patterns of said at least two of said antennas operating together; and
using said phase setting difference, determining one or both of;
a relative amplitude setting for the transmit antenna pattern anda relative amplitude setting for the receive antenna pattern.
1 Assignment
0 Petitions
Accused Products
Abstract
A method and system for calibrating transmit and receive antenna patterns for time division duplex (TDD) is described. A station in a communications network comprises at least two antennas configured to operate together for both transmitting and receiving modes. A phase setting difference between the transmit and receive antenna patterns may be determined and used to determine a relative amplitude setting for the transmit antenna pattern and/or a relative amplitude setting for the receive antenna pattern.
14 Citations
21 Claims
-
1. A method of configuring a station in a communications network comprising at least two antennas configured to operate together for both transmitting and receiving modes, and a plurality of radio circuits configured to transmit and receive via said antennas in a time division duplex (TDD) communication protocol, the method comprising:
-
determining a phase setting difference between the transmit and receive antenna patterns of said at least two of said antennas operating together; and using said phase setting difference, determining one or both of; a relative amplitude setting for the transmit antenna pattern and a relative amplitude setting for the receive antenna pattern. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
-
-
12. A system comprising:
-
a plurality of antennas configured to operate together for both transmitting and receiving, a plurality of radio circuits configured to transmit and receive via said antennas in a time division duplex (TDD) communication protocol; and a baseband processor configured to determine a phase setting difference between the transmit and receive antenna patterns of said at least two of said antennas operating together; and
using said phase setting difference, determine one or both of;a relative amplitude setting for the transmit antenna pattern and a relative amplitude setting for the receive antenna pattern. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A method of configuring a station in a communications network comprising at least two antennas configured to operate together for both transmitting and receiving modes, and a plurality of radio circuits configured to transmit and receive via said antennas in a time division duplex (TDD) communication protocol, the method comprising using a predetermined phase difference between receive and transmit antenna patterns for at least two antennas operating together to determine one or both of:
-
a relative amplitude setting for the transmit antenna pattern and a relative amplitude setting for the receive antenna pattern, to achieve a null in a signal received from or transmitted to another station by said at least two antennas.
-
Specification