Advanced multi-user detector
First Claim
1. A method for detecting multi-user signals, the method comprising:
- detecting a first energy burst including a first plurality of user signals;
attempting to decode a user signal from the first plurality of signals within the first energy burst;
cancelling out a first user signal from the first energy burst if the first user signal is successfully decoded from the first energy burst;
determining a second user signal to be discarded if the second user signal is not successfully decoded from the first energy burst;
detecting a second energy burst including a second plurality of user signals; and
iteratively cancelling out the first user signal successfully decoded from the first energy burst from the second energy burst,wherein when to conduct the second energy burst is predetermined using statistical information on how often energy burst detections should be made.
6 Assignments
0 Petitions
Accused Products
Abstract
A method for detecting multi-user signals including conducting a first energy burst detection detecting a first plurality of user signals as a first energy burst, attempting to decode a user signal from the first plurality of signals within the first energy burst, cancelling out a first user signal from the first energy burst if the first user signal is successfully decoded from the first energy burst, determining a second user signal to be discarded if the second user signal is not successfully decoded from the first energy burst, conducting a second energy burst detection detecting a second plurality of signals as a second burst, and iteratively cancelling out the first user signal successfully decoded from the first energy burst from the second energy burst, wherein the second energy burst detection is conducted when all user signals within the first energy burst are either cancelled out or determined to be discarded.
-
Citations
13 Claims
-
1. A method for detecting multi-user signals, the method comprising:
-
detecting a first energy burst including a first plurality of user signals; attempting to decode a user signal from the first plurality of signals within the first energy burst; cancelling out a first user signal from the first energy burst if the first user signal is successfully decoded from the first energy burst; determining a second user signal to be discarded if the second user signal is not successfully decoded from the first energy burst; detecting a second energy burst including a second plurality of user signals; and iteratively cancelling out the first user signal successfully decoded from the first energy burst from the second energy burst, wherein when to conduct the second energy burst is predetermined using statistical information on how often energy burst detections should be made. - View Dependent Claims (2)
-
-
3. An apparatus for detecting multi-user signals, the apparatus comprising:
-
a burst energy detector for detecting a plurality of user signals as an energy burst; a channel estimator for estimating an amount of Doppler shift and Doppler rate; and a decoder for attempting to decode a user signal from the plurality of signals within the energy burst; an iterative interference canceller for iteratively cancelling out successfully decoded user signal from the energy burst, wherein the iterative interference canceller statically determines whether the energy burst after the successfully decoded user signal is cancelled out should be input into the decoder or the burst energy detector. - View Dependent Claims (4, 5, 6)
-
-
7. A method for detecting multi-user signals, the method comprising:
-
detecting a first plurality of user signals as a first energy burst; cancelling out a first user signal of the first plurality of user signals from the first energy burst; detecting a second plurality of signals as a second burst; determining when to conduct the second energy burst detection using statistical information associated with the frequency of energy burst detections, and wherein the second energy burst detection is conducted based at least in response to the determination; and cancelling out the first user signal from the second energy burst. - View Dependent Claims (8, 9, 10, 11, 12, 13)
-
Specification