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US 2021/0306100 A1Published application
Rate-2 full-diversity complex space-time block codes
AssigneeAndro Computational Solutions, LLC
InventorsAnu Jagannath, Jithin Jagannath, Andrew Louis Drozd
Life of this patent
Estimating the term…
Abstract
Embodiments of the disclosure provide a transmission system, including: an encoder for encoding a set of information symbols into a set of encoded signals for transmission, wherein the encoder applies a full-diversity space-time block code (STBC) to the set of information symbols; and at least three antennas for transmitting the set of encoded signals over four epochs at a code rate of two.
Claims23
A transmission system, comprising:
- an encoder for encoding a set of information symbols into a set of encoded signals for transmission, wherein the encoder applies a space-time block code (STBC) to the set of information symbols;
- and
- three antennas for transmitting the set of encoded signals over four epochs at a code rate of two,
- wherein the STBC comprises:
- C
- P
-
-
- 3
- =
- [
- 0
- x
- 1
-
- sin
-
-
- α
- 1
- -
- x
- 2
- *
-
- cos
-
-
- α
- 1
- x
- 3
-
- sin
-
-
- α
- 2
- -
- x
- 4
- *
-
- cos
-
-
- α
- 2
- 0
- -
- x
- 3
- *
-
- sin
-
-
- α
- 2
- +
- x
- 4
-
- cos
-
-
- α
- 2
- x
- 1
- *
-
- sin
-
-
- α
- 1
- -
- x
- 2
-
- cos
-
-
- α
- 1
- x
- 5
-
- sin
-
-
- α
- 1
- -
- x
- 6
- *
-
- cos
-
-
- α
- 1
- x
- 7
-
- sin
-
-
- α
- 2
- -
- x
- 8
- *
-
- cos
-
-
- α
- 2
- 0
- -
- x
- 7
- *
-
- sin
-
-
- α
- 2
- +
- x
- 8
-
- cos
-
-
- α
- 2
- x
- 5
- *
-
- sin
-
-
- α
- 1
- -
- x
- 6
-
- cos
-
-
- α
- 1
- 0
- ]
- where x1, x2, . . . , x8 comprise the set of information symbols, x*1, x*2, . . . , x*8 comprise complex conjugates of each of the information symbols x1, x2, . . . , x8, and α1 and α2 comprise coding gain maximizing angles.
160 more elements
(canceled)
(canceled)
A transmission system, comprising:
- an encoder for encoding a set of information symbols into a set of encoded signals for transmission, wherein the encoder applies a space-time block code (STBC) to the set of information symbols;
- and
- four antennas for transmitting the set of encoded signals over four epochs at a code rate of two, wherein the STBC comprises:
- C
- P
-
-
- 4
- =
-
- [
- x
- 1
-
- sin
-
-
- α
- 1
- -
- x
- 2
- *
-
- cos
-
-
- α
- 1
- x
- 3
-
- sin
-
-
- α
- 2
- -
- x
- 4
- *
-
- cos
-
-
- α
- 2
- 0
- 0
- -
- x
- 3
- *
-
- sin
-
-
- α
- 2
- +
- x
- 4
-
- cos
-
-
- α
- 2
- x
- 1
- *
-
- sin
-
-
- α
- 1
- -
- x
- 2
-
- cos
-
-
- α
- 1
- 0
- 0
- 0
- 0
- x
- 5
-
- sin
-
-
- α
- 1
- -
- x
- 6
- *
-
- cos
-
-
- α
- 1
- x
- 7
-
- sin
-
-
- α
- 2
- -
- x
- 8
- *
-
- cos
-
-
- α
- 2
- 0
- 0
- -
- x
- 7
- *
-
- sin
-
-
- α
- 2
- +
- x
- 8
-
- cos
-
-
- α
- 2
- x
- 5
- *
-
- sin
-
-
- α
- 1
- -
- x
- 6
-
- cos
-
-
- α
- 1
- ]
- where x1, x2, . . . , x8 comprise the set of information symbols, x*1, x*2, . . . , x*8 comprise complex conjugates of each of the information symbols x1, x2, . . . , x8, and α1 and α2 comprise coding gain maximizing angles.
164 more elements
(canceled)
A method for transmitting data, comprising:
- encoding a set of information symbols into a set of encoded signals by applying a space-time block code (STBC) to the set of information symbols;
- and
- transmitting the set of encoded signals over four epochs using three antennas at a code rate of two,
- wherein the STBC comprises:
- C
- P
-
-
- 3
- =
- [
- 0
- x
- 1
-
- sin
-
-
- α
- 1
- -
- x
- 2
- *
-
- cos
-
-
- α
- 1
- x
- 3
-
- sin
-
-
- α
- 2
- -
- x
- 4
- *
-
- cos
-
-
- α
- 2
- 0
- -
- x
- 3
- *
-
- sin
-
-
- α
- 2
- +
- x
- 4
-
- cos
-
-
- α
- 2
- x
- 1
- *
-
- sin
-
-
- α
- 1
- -
- x
- 2
-
- cos
-
-
- α
- 1
- x
- 5
-
- sin
-
-
- α
- 1
- -
- x
- 6
- *
-
- cos
-
-
- α
- 1
- x
- 7
-
- sin
-
-
- α
- 2
- -
- x
- 8
- *
-
- cos
-
-
- α
- 2
- 0
- -
- x
- 7
- *
-
- sin
-
-
- α
- 2
- +
- x
- 8
-
- cos
-
-
- α
- 2
- x
- 5
- *
-
- sin
-
-
- α
- 1
- -
- x
- 6
-
- cos
-
-
- α
- 1
- 0
- ]
- where x1, x2, . . . , x8 comprise the set of information symbols, x*1, x*2, . . . , x*8 comprise complex conjugates of each of the information symbols x1, x2, . . . , x8, and α1 and α2 comprise coding gain maximizing angles.
160 more elements
(canceled)
(canceled)
A method for transmitting data, comprising:
- encoding a set of information symbols into a set of encoded signals by applying a space-time block code (STBC) to the set of information symbols;
- and
- transmitting the set of encoded signals over four epochs using four antennas at a code rate of two, wherein the STBC comprises:
- C
- P
-
-
- 4
- =
-
- [
- x
- 1
-
- sin
-
-
- α
- 1
- -
- x
- 2
- *
-
- cos
-
-
- α
- 1
- x
- 3
-
- sin
-
-
- α
- 2
- -
- x
- 4
- *
-
- cos
-
-
- α
- 2
- 0
- 0
- -
- x
- 3
- *
-
- sin
-
-
- α
- 2
- +
- x
- 4
-
- cos
-
-
- α
- 2
- x
- 1
- *
-
- sin
-
-
- α
- 1
- -
- x
- 2
-
- cos
-
-
- α
- 1
- 0
- 0
- 0
- 0
- x
- 5
-
- sin
-
-
- α
- 1
- -
- x
- 6
- *
-
- cos
-
-
- α
- 1
- x
- 7
-
- sin
-
-
- α
- 2
- -
- x
- 8
- *
-
- cos
-
-
- α
- 2
- 0
- 0
- -
- x
- 7
- *
-
- sin
-
-
- α
- 2
- +
- x
- 8
-
- cos
-
-
- α
- 2
- x
- 5
- *
-
- sin
-
-
- α
- 1
- -
- x
- 6
-
- cos
-
-
- α
- 1
- ]
- where x1, x2, . . . , x8 comprise the set of information symbols, x*1, x*2, . . . , x*8 comprise complex conjugates of each of the information symbols x1, x2, . . . , x8, and α1 and α2 comprise coding gain maximizing angles.
164 more elements
(canceled)
A communication system, comprising:
- a transmission system including:
- an encoder for encoding a set of information symbols into a set of encoded signals for transmission, wherein the encoder applies a space-time block code (STBC) to the set of information symbols;
- and
- three antennas for transmitting the set of encoded signals over four epochs at a code rate of two;
- and
- a receiving system for decoding the set of encoded signals, the decoding having a complexity of (Q) for a constellation cardinality of Q,
- wherein the STBC comprises:
- C
- P
-
-
- 3
- =
- [
- 0
- x
- 1
-
- sin
-
-
- α
- 1
- -
- x
- 2
- *
-
- cos
-
-
- α
- 1
- x
- 3
-
- sin
-
-
- α
- 2
- -
- x
- 4
- *
-
- cos
-
-
- α
- 2
- 0
- -
- x
- 3
- *
-
- sin
-
-
- α
- 2
- +
- x
- 4
-
- cos
-
-
- α
- 2
- x
- 1
- *
-
- sin
-
-
- α
- 1
- -
- x
- 2
-
- cos
-
-
- α
- 1
- x
- 5
-
- sin
-
-
- α
- 1
- -
- x
- 6
- *
-
- cos
-
-
- α
- 1
- x
- 7
-
- sin
-
-
- α
- 2
- -
- x
- 8
- *
-
- cos
-
-
- α
- 2
- 0
- -
- x
- 7
- *
-
- sin
-
-
- α
- 2
- +
- x
- 8
-
- cos
-
-
- α
- 2
- x
- 5
- *
-
- sin
-
-
- α
- 1
- -
- x
- 6
-
- cos
-
-
- α
- 1
- 0
- ]
- where x1, x2, . . . , x8 comprise the set of information symbols, x*1, x*2, . . . , x*8 comprise complex conjugates of each of the information symbols x1, x2, . . . , x8, and α1 and α2 comprise coding gain maximizing angles.
163 more elements
(canceled)
A communication system, comprising:
- a transmission system including:
- an encoder for encoding a set of information symbols into a set of encoded signals for transmission, wherein the encoder applies a space-time block code (STBC) to the set of information symbols;
- and
- four antennas for transmitting the set of encoded signals over four epochs at a code rate of two;
- and
- a receiving system for decoding the set of encoded signals, the decoding having a complexity of (Q) for a constellation cardinality of Q, wherein the STBC comprises:
- C
- P
-
-
- 4
- =
-
- [
- x
- 1
-
- sin
-
-
- α
- 1
- -
- x
- 2
- *
-
- cos
-
-
- α
- 1
- x
- 3
-
- sin
-
-
- α
- 2
- -
- x
- 4
- *
-
- cos
-
-
- α
- 2
- 0
- 0
- -
- x
- 3
- *
-
- sin
-
-
- α
- 2
- +
- x
- 4
-
- cos
-
-
- α
- 2
- x
- 1
- *
-
- sin
-
-
- α
- 1
- -
- x
- 2
-
- cos
-
-
- α
- 1
- 0
- 0
- 0
- 0
- x
- 5
-
- sin
-
-
- α
- 1
- -
- x
- 6
- *
-
- cos
-
-
- α
- 1
- x
- 7
-
- sin
-
-
- α
- 2
- -
- x
- 8
- *
-
- cos
-
-
- α
- 2
- 0
- 0
- -
- x
- 7
- *
-
- sin
-
-
- α
- 2
- +
- x
- 8
-
- cos
-
-
- α
- 2
- x
- 5
- *
-
- sin
-
-
- α
- 1
- -
- x
- 6
-
- cos
-
-
- α
- 1
- ]
- where x1, x2, . . . , x8 comprise the set of information symbols, x*1, x*2, . . . , x*8 comprise complex conjugates of each of the information symbols x1, x2, . . . , x8, and α1 and α2 comprise coding gain maximizing angles.
167 more elements
Dependencies are inferred from the claim text.