Single-antenna interference cancellation receiver in time slot communication system
First Claim
1. A receiver for use in a modulated communications system wherein data is communicated in a time-slotted format and is subject to channel effects and co-channel interference, the receiver comprising:
- circuitry for providing samples of a group of data from the time-slotted format;
circuitry for determining a first set of channel estimates in response to a first set of the samples, the first set of channel estimates relating to the channel effects;
circuitry for determining a first set of interference estimates in response to the first set of the samples and the first set of channel estimates, the first set of interference estimates relating to the co-channel interference;
circuitry for first predicting decisions for data in the group of data in response to the first set of channel estimates and the first set of interference estimates;
circuitry for determining a second set of channel estimates in response to the predicted decisions and without a correlation to a training sequence, the second set of channel estimates relating to the channel effects;
circuitry for determining a second set of interference estimates in response to the predicted decisions and the second set of channel estimates, the second set of interference estimates relating to the co-channel interference; and
wherein the circuitry for predicting is further for second predicting decisions for data in the group of data in response to the second set of channel estimates and the second set of interference estimates.
1 Assignment
0 Petitions
Accused Products
Abstract
A receiver (MST) for use in a modulated communications system wherein data is communicated in a time-slotted format. The receiver comprises circuitry (22) for providing samples of a group of data from the time-slotted format and circuitry (46, 42) for determining a first set of channel estimates in response to a first set of the samples. The receiver also comprises circuitry (30) for first predicting decisions for data in the group of data in response to the first set of channel estimates and circuitry (46, 42) for determining a second set of channel estimates in response to the predicted decisions. Lastly, the circuitry for predicting is further for second predicting decisions for data in the group of data in response to the second set of channel estimates.
-
Citations
27 Claims
-
1. A receiver for use in a modulated communications system wherein data is communicated in a time-slotted format and is subject to channel effects and co-channel interference, the receiver comprising:
-
circuitry for providing samples of a group of data from the time-slotted format; circuitry for determining a first set of channel estimates in response to a first set of the samples, the first set of channel estimates relating to the channel effects; circuitry for determining a first set of interference estimates in response to the first set of the samples and the first set of channel estimates, the first set of interference estimates relating to the co-channel interference; circuitry for first predicting decisions for data in the group of data in response to the first set of channel estimates and the first set of interference estimates; circuitry for determining a second set of channel estimates in response to the predicted decisions and without a correlation to a training sequence, the second set of channel estimates relating to the channel effects; circuitry for determining a second set of interference estimates in response to the predicted decisions and the second set of channel estimates, the second set of interference estimates relating to the co-channel interference; and wherein the circuitry for predicting is further for second predicting decisions for data in the group of data in response to the second set of channel estimates and the second set of interference estimates. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A method of operating a receiver in a wireless modulated communications system wherein data is communicated in a time-slotted format and is subject to channel effects and co-channel interference, the method comprising:
-
receiving communications in the time-slotted format; providing samples of a group of data from the time-slotted format; first, determining a first set of channel estimates in response to a first set of the samples, the first set of channel estimates relating to the channel effects; second, determining a first set of interference estimates in response to the first set of the samples and the first set of channel estimates, the first set of interference estimates relating to the co-channel interference; third, predicting decisions for data in the group of data in response to the first set of channel estimates and the first set of interference estimates; fourth, determining a second set of channel estimates in response to the predicted decisions and without a correlation to a training sequence; fifth, determining a second set of interference estimates in response to the predicted decisions and the second set of channel estimates, the second set of interference estimates relating to the co-channel interference; and sixth, predicting decisions for data in the group of data in response to the second set of channel estimates and the second set of interference estimates. - View Dependent Claims (22, 23, 24, 25, 26, 27)
-
Specification