Tap weight initializer for an adaptive equalizer
First Claim
Patent Images
1. A method for determining the initial values of the tap weights for the taps wherein the nested summation has the following general form:
- Wherein a, b, . . . , n are initial summing points for the corresponding summations, and wherein m>
1 such that if m=2 there are only two summations and such that if m>
2 there are more than two summations of a linear equalizer comprising;
determining a channel impulse response of a channel; and
,performing a nested summation to determine, from the channel impulse response, the initial values corresponding to the weights of the equalizer taps.
1 Assignment
0 Petitions
Accused Products
Abstract
Initial values of the tap weights for the taps of a linear equalizer are determined based on a channel impulse response of a channel so that the values corresponding to the weights of the equalizer taps achieve optimum initialization of the equalizer. These values are determined through use of a nested summation where the number of summations is dependent upon the number of multi-paths characterizing the channel.
-
Citations
28 Claims
-
1. A method for determining the initial values of the tap weights for the taps wherein the nested summation has the following general form:
-
Wherein a, b, . . . , n are initial summing points for the corresponding summations, and wherein m>
1 such that if m=2 there are only two summations and such that if m>
2 there are more than two summations of a linear equalizer comprising;determining a channel impulse response of a channel; and
,performing a nested summation to determine, from the channel impulse response, the initial values corresponding to the weights of the equalizer taps. - View Dependent Claims (2, 3)
-
-
4. A method for determining values for the tap weights of the taps of a linear equalizer wherein the nested summation has the following general form:
-
Wherein a, b, . . . , n are initial summing points for the corresponding summations, and wherein m>
1 such that if m=2 there are only two summations and such that if m>
2 there are more than two summations comprising;determining a channel impulse response of a channel; and
,performing a nested summation to determine from the channel impulse response only values corresponding to the weights of the equalizer taps necessary to achieve optimum initialization of the equalizer. - View Dependent Claims (5, 6, 7, 8, 9)
-
-
10. A method for determining values for the tap weights of the taps of a linear equalizer wherein the nested summation has the following general form:
-
Wherein a, b, . . . , n are initial summing points for the corresponding summations, and wherein m>
1 such that if m=2 there are only two summations and such that if m>
2 there are more than two summations comprising;cross-correlating data received over a channel with a stored representation of the data as transmitted so as to produce a correlation vector, wherein the correlation vector is characterized by a known noise component resulting from the finiteness of the correlation; subtracting the known noise component from the correlation vector so as to produce a channel impulse response related to the channel; and
,performing a nested summation to determine from the channel impulse response only values corresponding to the weights of the equalizer taps necessary to achieve optimum initialization of the equalizer. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
-
-
27. A method for determining initial values for tap weights to be applied to taps of a linear equalizer wherein the nested summation has the following general form:
-
Wherein a, b, . . . , n are initial summing points for the corresponding summations, and wherein m>
1 such that if m=2 there are only two summations and such that if m>
2 there are more than two summations comprising;determining a channel impulse response of a channel; and
,performing a nested summation on the channel impulse response to determine the initial values for the tap weights to be applied to the taps of the linear equalizer. - View Dependent Claims (28)
-
Specification