US2015156038A1PendingUtilityA1
Communication devices for generating and using a matrix-mapped sequence
Est. expiryJun 7, 2030(~3.9 yrs left)· nominal 20-yr term from priority
H04J 11/00H04L 25/0242H04L 27/2613H04L 27/26
41
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Claims
Abstract
A communication device for generating a matrix-mapped sequence is described. The communication device includes sequence generation circuitry. The communication device also includes mapping circuitry coupled to the sequence generation circuitry. The mapping circuitry applies a first matrix with at least one column multiplied by −1 to a sequence. The communication device also includes a transmit block coupled to the mapping circuitry.
Claims
exact text as granted — not AI-modifiedWhat is claimed is:
1 . (canceled)
2 . A communication device for generating a matrix-mapped sequence, comprising:
mapping circuitry configured to apply a matrix to a sequence, wherein each element in at least one column of the matrix has a negative value; and a transmit block coupled to the mapping circuitry and configured to transmit the sequence.
3 . The communication device of claim 2 , wherein the matrix is given according to an equation
P
6
×
6
=
[
1
-
1
1
1
-
1
-
1
1
-
w
1
w
2
w
3
-
w
4
-
w
5
1
-
w
2
w
4
w
6
-
w
8
-
w
10
1
-
w
3
w
6
w
9
-
w
12
-
w
15
1
-
w
4
w
8
w
12
-
w
16
-
w
20
1
-
w
5
w
10
w
15
-
w
20
-
w
25
]
,
wherein P 6×6 is the matrix and
w
=
exp
(
-
j2π
6
)
.
4 . The communication device of claim 2 , wherein at least one column of the at least one column has a first column adjacent to a first side of the at least one column of the at least one column and a second column adjacent to a second side of the at least one column of the at least one column.
5 . The communication device of claim 2 , wherein a sum of all elements in at least one row of the matrix is zero.
6 . A method for generating a matrix-mapped sequence, comprising:
applying a matrix to a sequence, wherein each element in at least one column of the matrix has a negative value; and transmitting the sequence.
7 . The method of claim 6 , wherein the matrix is given according to an equation
P
6
×
6
=
[
1
-
1
1
1
-
1
-
1
1
-
w
1
w
2
w
3
-
w
4
-
w
5
1
-
w
2
w
4
w
6
-
w
8
-
w
10
1
-
w
3
w
6
w
9
-
w
12
-
w
15
1
-
w
4
w
8
w
12
-
w
16
-
w
20
1
-
w
5
w
10
w
15
-
w
20
-
w
25
]
,
wherein P 6×6 is the matrix and
w
=
exp
(
-
j2π
6
)
.
8 . The method of claim 6 , wherein at least one column of the at least one column has a first column adjacent to a first side of the at least one column of the at least one column and a second column adjacent to a second side of the at least one column of the at least one column.
9 . The method of claim 6 , wherein a sum of all elements in at least one row of the matrix is zero.
10 . A non-transitory computer-readable medium for generating a matrix-mapped sequence, the medium comprising processor-readable instructions configured to cause one or more processors to:
apply a matrix to a sequence, wherein each element in at least one column of the matrix has a negative value; and transmit the sequence.
11 . The non-transitory computer-readable medium of claim 10 , wherein the matrix is given according to an equation
P
6
×
6
=
[
1
-
1
1
1
-
1
-
1
1
-
w
1
w
2
w
3
-
w
4
-
w
5
1
-
w
2
w
4
w
6
-
w
8
-
w
10
1
-
w
3
w
6
w
9
-
w
12
-
w
15
1
-
w
4
w
8
w
12
-
w
16
-
w
20
1
-
w
5
w
10
w
15
-
w
20
-
w
25
]
,
wherein P 6×6 is the matrix and
w
=
exp
(
-
j2π
6
)
.
12 . The non-transitory computer-readable medium of claim 10 , wherein at least one column of the at least one column has a first column adjacent to a first side of the at least one column of the at least one column and a second column adjacent to a second side of the at least one column of the at least one column.
13 . The non-transitory computer-readable medium of claim 10 , wherein a sum of all elements in at least one row of the matrix is zero.
14 . An apparatus for generating a matrix-mapped sequence, comprising:
means for applying a matrix to a sequence, wherein each element in at least one column of the matrix has a negative value; and means for transmitting the sequence.
15 . A communication device for using a matrix-mapped sequence, comprising:
a receive block configured to receive a sequence that is mapped according to a matrix, wherein each element in at least one column of the matrix has a negative value; and channel estimation circuitry coupled to the receive block and configured to receive a first signal that corresponds to the sequence, to estimate a channel from the first signal, and to produce a second signal that includes information about an estimate of the channel.
16 . The communication device of claim 15 , wherein the matrix is given according to an equation
P
6
×
6
=
[
1
-
1
1
1
-
1
-
1
1
-
w
1
w
2
w
3
-
w
4
-
w
5
1
-
w
2
w
4
w
6
-
w
8
-
w
10
1
-
w
3
w
6
w
9
-
w
12
-
w
15
1
-
w
4
w
8
w
12
-
w
16
-
w
20
1
-
w
5
w
10
w
15
-
w
20
-
w
25
]
,
wherein P 6×6 is the matrix and
w
=
exp
(
-
j2π
6
)
.
17 . The communication device of claim 15 , wherein at least one column of the at least one column has a first column adjacent to a first side of the at least one column of the at least one column and a second column adjacent to a second side of the at least one column of the at least one column.
18 . The communication device of claim 15 , wherein a sum of all elements in at least one row of the matrix is zero.
19 . A method for using a matrix-mapped sequence, comprising:
receiving a sequence that is mapped according to a matrix, wherein each element in at least one column of the matrix has a negative value; receiving a first signal that corresponds to the sequence; estimating a channel from the first signal; and producing a second signal that includes information about an estimate of the channel.
20 . The method of claim 19 , wherein the matrix is given according to an equation
P
6
×
6
=
[
1
-
1
1
1
-
1
-
1
1
-
w
1
w
2
w
3
-
w
4
-
w
5
1
-
w
2
w
4
w
6
-
w
8
-
w
10
1
-
w
3
w
6
w
9
-
w
12
-
w
15
1
-
w
4
w
8
w
12
-
w
16
-
w
20
1
-
w
5
w
10
w
15
-
w
20
-
w
25
]
,
wherein P 6×6 is the matrix and
w
=
exp
(
-
j2π
6
)
.
21 . The method of claim 19 , wherein at least one column of the at least one column has a first column adjacent to a first side of the at least one column of the at least one column and a second column adjacent to a second side of the at least one column of the at least one column.
22 . The method of claim 19 , wherein a sum of all elements in at least one row of the matrix is zero.
23 . A non-transitory computer-readable medium for using a matrix-mapped sequence, the medium comprising processor-readable instructions configured to cause one or more processors to:
receive a sequence that is mapped according to a matrix, wherein each element in at least one column of the matrix has a negative value; receive a first signal that corresponds to the sequence; estimating a channel from the first signal; and produce a second signal that includes information about an estimate of the channel.
24 . The non-transitory computer-readable medium of claim 23 , wherein the matrix is given according to an equation
P
6
×
6
=
[
1
-
1
1
1
-
1
-
1
1
-
w
1
w
2
w
3
-
w
4
-
w
5
1
-
w
2
w
4
w
6
-
w
8
-
w
10
1
-
w
3
w
6
w
9
-
w
12
-
w
15
1
-
w
4
w
8
w
12
-
w
16
-
w
20
1
-
w
5
w
10
w
15
-
w
20
-
w
25
]
,
wherein P 6×6 is the matrix and
w
=
exp
(
-
j2π
6
)
.
25 . The non-transitory computer-readable medium of claim 23 , wherein at least one column of the at least one column has a first column adjacent to a first side of the at least one column of the at least one column and a second column adjacent to a second side of the at least one column of the at least one column.
26 . The non-transitory computer-readable medium of claim 23 , wherein a sum of all elements in at least one row of the matrix is zero.
27 . An apparatus for using a matrix-mapped sequence, comprising:
means for receiving a sequence that is mapped according to a matrix, wherein each element in at least one column of the matrix has a negative value; means for receiving a first signal that corresponds to the sequence; means for estimating a channel from the first signal; and means for producing a second signal that includes information about an estimate of the channel.Join the waitlist — get patent alerts
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