Method and apparatus for performing JRNSO in FDD, TDD and MIMO communications
First Claim
1. A method in a wireless communications network for determining a Joint Randomness Not Shared by Others (JRNSO), the method comprisingtransmitting a first signal, including a first pilot, from a first transmit element during a JRNSO period, upon applying a first JRNSO function to the first signal;
- receiving a second signal, including a second pilot and a second channel effect, over a first receive element and at least one second receive element during the JRNSO period, wherein a second JRNSO function has been applied to the second signal;
transmitting two versions of a third signal that comprises the second signal, from the first transmit element during the JRNSO period, upon applying the first JRNSO function to the third signal, wherein a first version of the third signal comprises a first receive element version and a second version of the third signal comprises at least one second receive element version;
receiving a fourth signal, including the first signal, a first channel effect and the second channel effect, over the first receive element and the at least one second receive element during the JRNSO period, wherein the second JRNSO function has been applied to the fourth signal;
processing the received signals to determine overall channel effects;
determining the JRNSO based on the determined overall channel effects; and
transmitting a fifth signal, during a data period, upon applying a data function to the fifth signal.
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Accused Products
Abstract
A method and apparatus for performing Joint Randomness Not Shared by Others (JRNSO) is disclosed. In one embodiment, JRNSO is determined in Frequency Division Duplex (FDD) using a baseband signal loop back and private pilots. In another embodiment, JRNSO is determined in Time Division Duplex (TDD) using a baseband signal loop back and combinations of private pilots, private gain functions and Kalman filtering directional processing. In one example, the FDD and TDD JRSNO embodiments are performed in Single-Input-Single-Output (SISO) and Single-Input-Multiple-Output (SIMO) communications. In other examples, the FDD and TDD embodiments are performed in Multiple-Input-Multiple-Output (MIMO) and Multiple-Input-Single-Output (MISO) communications. JRNSO is determined by reducing MIMO and MISO communications to SISO or SIMO communications. JRNSO is also determined using determinants of MIMO channel products. Channel restrictions are removed by exploiting symmetric properties of matrix products.
46 Citations
29 Claims
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1. A method in a wireless communications network for determining a Joint Randomness Not Shared by Others (JRNSO), the method comprising
transmitting a first signal, including a first pilot, from a first transmit element during a JRNSO period, upon applying a first JRNSO function to the first signal; -
receiving a second signal, including a second pilot and a second channel effect, over a first receive element and at least one second receive element during the JRNSO period, wherein a second JRNSO function has been applied to the second signal; transmitting two versions of a third signal that comprises the second signal, from the first transmit element during the JRNSO period, upon applying the first JRNSO function to the third signal, wherein a first version of the third signal comprises a first receive element version and a second version of the third signal comprises at least one second receive element version; receiving a fourth signal, including the first signal, a first channel effect and the second channel effect, over the first receive element and the at least one second receive element during the JRNSO period, wherein the second JRNSO function has been applied to the fourth signal; processing the received signals to determine overall channel effects; determining the JRNSO based on the determined overall channel effects; and transmitting a fifth signal, during a data period, upon applying a data function to the fifth signal. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A wireless transmit/receive unit (WTRU) for determining a Joint Randomness Not Shared by Others (JRNSO), the WTRU comprising:
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a transmitter comprising a first transmit element, the transmitter configured to transmit; a first signal, including a first pilot, from the first transmit element, two versions of a third signal that comprises a second signal, from the first transmit element, wherein a first version of the third signal comprises a first receive element version, wherein a second version of the third signal comprises at least one second receive element version, and wherein the transmitter is further configured to transmit the first signal and the third signal during a JRNSO period, and a fifth signal, wherein the fifth signal is transmitted during a data period; a receiver comprising a first receive element and at least one second receive element, the receiver configured to receive; the second signal, including a second pilot and a second channel effect, over the first receive element and the at least one second receive element, and a fourth signal including the first signal, a first channel effect and the second channel effect, over the first receive element and the at least one second receive element, wherein the receiver is further configured to receive the second signal and fourth signal during the JRNSO period, and a second JRNSO function has been applied to the second signal and the fourth signal; and a processor configured to; apply a first JRNSO function to the first signal during the JRNSO period, apply the first JRNSO function to the third signal during the JRNSO period, process the received signals to determine overall channel effects, determine the JRNSO based on the determined overall channel effects, and apply a data function to the fifth signal during the data period. - View Dependent Claims (19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29)
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Specification