USRE49539EActiveUtility
Method and apparatus for transmitting uplink signal, and method and apparatus for generating uplink signal in communication system
Assignee: ELECTRONICS & TELECOMMUNICATIONS RES INSTPriority: Sep 1, 2006Filed: Dec 2, 2016Granted: May 30, 2023
Est. expirySep 1, 2026(~0.2 yrs left)· nominal 20-yr term from priority
Inventors:Hyeong-Geun ParkIl Gyu KimYoung Jo KoKap Seok ChangHyo Seok YiYoung-Hoon KimSeung-Chan Bang
H04L 5/0048H04J 11/00H04J 13/0074H04W 72/04H04L 1/1861H04L 27/2602H04L 5/0021H04L 1/1692H04L 1/1887H04L 25/03866H04L 5/0053H04L 5/0012H04J 11/003
55
PatentIndex Score
0
Cited by
34
References
39
Claims
Abstract
When a terminal generates an uplink signal in a communication system, the terminal hops a sequence for differentiating itself from another terminal with time. The terminal generates the uplink signal by multiplying a transmission symbol by a sequence of a transmission time corresponding to the transmission symbol.
Claims
exact text as granted — not AI-modifiedThe invention claimed is:
1. A communication methodof transmitting an uplink signal at a terminal of a first user in a wireless communication system, the method comprising:
transmitting, by a user equipment (UE), a first sequence at a first transmission time, the first sequence being determined by based on a basic sequence and a first cyclic shift valueamong a plurality of cyclic shift values including the first cyclic shift value, a second cyclic shift value, a third cyclic shift value, and a fourth cyclic shift value; and
transmitting, by the UE, a second sequence at a second transmission time after the first transmission time, the second sequence being determined by based on the basic sequence and the a second cyclic shift value,
wherein at a terminal of a second user being different from the first user, a sequence determined by the basic sequence and the third cyclic shift value is transmitted at the first transmission time and a sequence determined by the basic sequence and the fourth cyclic shift value is transmitted at the second transmission time, and
wherein a difference between the second cyclic shift value and the first cyclic shift value is different from a difference between the fourth cyclic shift value and the third cyclic shift value when the third cyclic shift value is adjacent to the first cyclic shift value
wherein the first cyclic shift value and the second cyclic shift value are UE-specific.
2. The method of claim 1 , wherein the second cyclic shift value is determined based on the first cyclic shift value, and the fourth cyclic shift value is determined based on the third cyclic shift value.
3. The method of claim 1 , wherein the first sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the first cyclic shift value, and
the second sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the second cyclic shift value.
4. The method of claim 1 , wherein the first sequence is given by cyclic-shifting the basic sequence by the first cyclic shift value in a time domain, and
the second sequence is given by cyclic-shifting the basic sequence by the second cyclic shift value in a time domain cyclic shift value is determined also based on a first symbol number of the first transmission time, and the second cyclic shift value is determined also based on a second symbol number of the second transmission time.
5. The method of claim 1 , wherein each of the first sequence and the second sequence c i n (k) is given as follows:
c
_
i
n
(
k
)
=
c
_
0
⊗
ψ
_
i
n
(
k
)
c
_
0
=
[
c
0
(
0
)
c
0
(
1
)
…
c
0
(
N
f
-
1
)
]
T
ψ
_
i
n
(
k
)
=
[
1
e
-
j
2
π
N
f
Δ
τ
i
n
(
k
)
…
e
-
j
2
π
N
f
(
N
f
-
1
)
Δ
τ
i
n
(
k
)
]
T
,
wherein c o denotes the basic sequence, Δτ·i n (k) denotes the first or second cyclic-shift value, and N f denotes the number of subcarriers.
6. A method of receiving an uplink signal at a base station in a wireless communication system, the method comprising:
receiving a first sequence from a first terminal of a first user at a first transmission time, the first sequence being determined by a basic sequence and a first cyclic shift value among a plurality of cyclic shift values including the first cyclic shift value, a second cyclic shift value, a third cyclic shift value, and a fourth cyclic shift value; receiving a second sequence from the first terminal at a second transmission time after the first transmission time, the second sequence being determined by the basic sequence and the second cyclic shift value; receiving a third sequence from a second terminal of a second user at the first transmission time, the second user being different from the first user and the third sequence being determined by the basic sequence and the third cyclic shift value; and receiving a fourth sequence from the second terminal at the second transmission time, the fourth sequence being determined by the basic sequence and the fourth cyclic shift value, wherein a difference between the second cyclic shift value and the first cyclic shift value is different from a difference between the fourth cyclic shift value and the third cyclic shift value when the third cyclic shift value is adjacent to the first cyclic shift value.
7. The method of claim 6 , wherein the second cyclic shift value is determined based on the first cyclic shift value, and the fourth cyclic shift value is determined based on the third cyclic shift value.
8. The method of claim 6 , wherein the first sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the first cyclic shift value, and
the second sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the second cyclic shift value.
9. The method of claim 6 , wherein the first sequence is given by cyclic-shifting the basic sequence by the first cyclic shift value in a time domain, and
the second sequence is given by cyclic-shifting the basic sequence by the second cyclic shift value in a time domain.
10. The method of claim 6 , wherein each of the first sequence and the second sequence c i n (k) is given as follows:
c
_
i
n
(
k
)
=
c
_
0
⊗
ψ
_
i
n
(
k
)
c
_
0
=
[
c
0
(
0
)
c
0
(
1
)
…
c
0
(
N
f
-
1
)
]
T
ψ
_
i
n
(
k
)
=
[
1
e
-
j
2
π
N
f
Δ
τ
i
n
(
k
)
…
e
-
j
2
π
N
f
(
N
f
-
1
)
Δ
τ
i
n
(
k
)
]
T
,
wherein c o denotes the basic sequence, Δτ·i n (k) denotes the first or second cyclic-shift value, and N f denotes the number of subcarriers.
11. An apparatus for transmitting an uplink signal at a terminal of a first user in a wireless communication system, the method comprising:
a mapper configured to generate a first sequence and a second sequence, the first sequence being determined by a basic sequence and a first cyclic shift value among a plurality of cyclic shift values including the first cyclic shift value, a second cyclic shift value, a third cyclic shift value, and a fourth cyclic shift value, and the second sequence being determined by the basic sequence and the second cyclic shift value; and a transmitter configured to transmit the first sequence at a first transmission time and transmit the second sequence at a second transmission time after the first transmission time, wherein at a terminal of a second user being different from the first user, a sequence determined by the basic sequence and the third cyclic shift value is transmitted at the first transmission time and a sequence determined by the basic sequence and the fourth cyclic shift value is transmitted at the second transmission time, and wherein a difference between the second cyclic shift value and the first cyclic shift value is different from a difference between the fourth cyclic shift value and the third cyclic shift value when the third cyclic shift value is adjacent to the first cyclic shift value.
12. The apparatus of claim 11 , wherein the second cyclic shift value is determined based on the first cyclic shift value, and the fourth cyclic shift value is determined based on the third cyclic shift value.
13. The apparatus of claim 11 , wherein the first sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the first cyclic shift value, and
the second sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the second cyclic shift value.
14. The apparatus of claim 11 , wherein the first sequence is given by cyclic-shifting the basic sequence by the first cyclic shift value in a time domain, and
the second sequence is given by cyclic-shifting the basic sequence by the second cyclic shift value in a time domain.
15. The apparatus of claim 11 , wherein each of the first sequence and the second sequence c i n (k) is given as follows:
c
_
i
n
(
k
)
=
c
_
0
⊗
ψ
_
i
n
(
k
)
c
_
0
=
[
c
0
(
0
)
c
0
(
1
)
…
c
0
(
N
f
-
1
)
]
T
ψ
_
i
n
(
k
)
=
[
1
e
-
j
2
π
N
f
Δ
τ
i
n
(
k
)
…
e
-
j
2
π
N
f
(
N
f
-
1
)
Δ
τ
i
n
(
k
)
]
T
,
wherein c o denotes the basic sequence, Δτ·i n (k) denotes the first or second cyclic-shift value, and N f denotes the number of subcarriers.
16. An apparatus of receiving an uplink signal at a base station in a wireless communication system, the method comprising:
a first receiver configured to receive a first sequence from a first terminal of a first user at a first transmission time and receive a second sequence from the first terminal at a second transmission time after the first transmission time, the first sequence being determined by a basic sequence and a first cyclic shift value among a plurality of cyclic shift values including the first cyclic shift value, a second cyclic shift value, a third cyclic shift value, and a fourth cyclic shift value, and the second sequence being determined by the basic sequence and the second cyclic shift value; and a second receiver configured to receive a third sequence from a second terminal of a second user at the first transmission time and receive a fourth sequence from the second terminal at the second transmission time, the second user being different from the first user and the third sequence being determined by the basic sequence and the third cyclic shift value and the fourth sequence being determined by the basic sequence and the fourth cyclic shift value, wherein a difference between the second cyclic shift value and the first cyclic shift value is different from a difference between the fourth cyclic shift value and the third cyclic shift value when the third cyclic shift value is adjacent to the first cyclic shift value.
17. The apparatus of claim 16 , wherein the second cyclic shift value is determined based on the first cyclic shift value, and the fourth cyclic shift value is determined based on the third cyclic shift value.
18. The apparatus of claim 16 , wherein the first sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the first cyclic shift value, and
the second sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the second cyclic shift value.
19. The apparatus of claim 16 , wherein the first sequence is given by cyclic-shifting the basic sequence by the first cyclic shift value in a time domain, and
the second sequence is given by cyclic-shifting the basic sequence by the second cyclic shift value in a time domain.
20. The apparatus of claim 16 , wherein each of the first sequence and the second sequence c i n (k) is given as follows:
c
_
i
n
(
k
)
=
c
_
0
⊗
ψ
_
i
n
(
k
)
c
_
0
=
[
c
0
(
0
)
c
0
(
1
)
…
c
0
(
N
f
-
1
)
]
T
ψ
_
i
n
(
k
)
=
[
1
ⅇ
-
j
2
π
N
f
Δ
τ
i
n
(
k
)
…
ⅇ
-
j
2
π
N
f
(
N
f
-
1
)
Δ
τ
i
n
(
k
)
]
T
,
wherein c o denotes the basic sequence, Δτ·i n (k) denotes the first or second cyclic-shift value, and N f denotes the number of subcarriers.
21. The communication method of claim 1, further comprising:
transmitting, from another UE, a third sequence at the first transmission time, the another UE being different from the UE, and the third sequence being determined based on the basic sequence and a third cyclic shift value; and transmitting, from the another UE, a fourth sequence at the second transmission time, the fourth sequence being determined based on the basic sequence and a fourth cyclic shift value, wherein, when the first cyclic shift value is equal to the third cyclic shift value plus one (1), the second cyclic shift value is not equal to the fourth cyclic shift value plus one (1).
22. A communication apparatus, comprising:
a processor, and a memory operably coupled to the processor, wherein the memory stores program instructions which:
cause the communication apparatus to transmit a first sequence to a base station at a first transmission time, the first sequence being determined based on a basic sequence and a first cyclic shift value; and
cause the communication apparatus to transmit a second sequence to the base station at a second transmission time after the first transmission time, the second sequence being determined based on the basic sequence and a second cyclic shift value,
wherein the first cyclic shift value and the second cyclic shift value are UE-specific.
23. The apparatus of claim 22, wherein the second cyclic shift value is determined based on the first cyclic shift value.
24. The apparatus of claim 22, wherein the first sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the first cyclic shift value, and
the second sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the second cyclic shift value.
25. The apparatus of claim 22, wherein the first cyclic shift value is determined also based on a first symbol number of the first transmission time, and the second cyclic shift value is determined also based on a second symbol number of the second transmission time.
26. The apparatus of claim 22, wherein each of the first sequence and the second sequence c i n (k) is given as follows:
c
_
i
n
(
k
)
=
c
_
0
⊗
ψ
_
i
n
(
k
)
c
_
0
=
[
c
0
(
0
)
c
0
(
1
)
…
c
0
(
N
f
-
1
)
]
T
ψ
_
i
n
(
k
)
=
[
1
e
-
j
2
π
N
f
Δ
τ
i
n
(
k
)
…
e
-
j
2
π
N
f
(
N
f
-
1
)
Δ
τ
i
n
(
k
)
]
T
,
wherein c 0 denotes the basic sequence, Δτ·i n (k) denotes the first or second cyclic-shift value, and N f denotes the number of subcarriers.
27. The communication apparatus of claim 22, wherein another communication apparatus transmits a third sequence at the first transmission time, the another communication apparatus being different from the communication apparatus, and the third sequence being determined based on the basic sequence and a third cyclic shift value,
wherein the another communication apparatus transmits a fourth sequence at the second transmission time, the fourth sequence being determined based on the basic sequence and a fourth cyclic shift value, and wherein, when the first cyclic shift value is equal to the third cyclic shift value plus one (1), the second cyclic shift value is not equal to the fourth cyclic shift value plus one (1).
28. A communication method, comprising:
receiving, from a first user equipment (UE), a first sequence at a first transmission time, the first sequence being determined based on a basic sequence and a first cyclic shift value; and receiving, from the first UE, a second sequence at a second transmission time after the first transmission time, the second sequence being determined based on the basic sequence and a second cyclic shift value, receiving, from a second UE, a third sequence at the first transmission time, the second UE being different from the first UE, and the third sequence being determined based on the basic sequence and a third cyclic shift value; and receiving, from the second UE, a fourth sequence at the second transmission time, the fourth sequence being determined based on the basic sequence and a fourth cyclic shift value, wherein, when the first cyclic shift value is equal to the third cyclic shift value plus one (1), the second cyclic shift value is not equal to the fourth cyclic shift value plus one (1).
29. The method of claim 28, wherein the second cyclic shift value is determined based on the first cyclic shift value.
30. The method of claim 28, wherein the first sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the first cyclic shift value, and
the second sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the second cyclic shift value.
31. The method of claim 28, wherein the first cyclic shift value is determined also based on a first symbol number of the first transmission time, and the second cyclic shift value is determined also based on a second symbol number of the second transmission time.
32. The method of claim 28, wherein each of the first sequence and the second sequence c i n (k) is given as follows:
c
_
i
n
(
k
)
=
c
_
0
⊗
ψ
_
i
n
(
k
)
c
_
0
=
[
c
0
(
0
)
c
0
(
1
)
…
c
0
(
N
f
-
1
)
]
T
ψ
_
i
n
(
k
)
=
[
1
e
-
j
2
π
N
f
Δ
τ
i
n
(
k
)
…
e
-
j
2
π
N
f
(
N
f
-
1
)
Δ
τ
i
n
(
k
)
]
T
,
wherein c 0 denotes the basic sequence, Δτ·i n (k) denotes the first or second cyclic-shift value, and N f denotes the number of subcarriers.
33. The communication method of claim 28, wherein the first cyclic shift value and the second cyclic shift value are UE-specific.
34. A communication apparatus, comprising:
a processor, and a memory operably coupled to the processor, wherein the memory stores program instructions which:
cause the apparatus to receive a first sequence from a first user equipment (UE) at a first transmission time, the first sequence being determined based on a basic sequence and a first cyclic shift value; and
cause the apparatus to receive a second sequence from the first UE at a second transmission time after the first transmission time, the second sequence being determined based on the basic sequence and a second cyclic shift value;
cause the apparatus to receive a third sequence from a second UE at the first transmission time, the second UE being different from the first UE, and the third sequence being determined based on the basic sequence and a third cyclic shift value; and
cause the apparatus to receive a fourth sequence from the second UE at the second transmission time, the fourth sequence being determined based on the basic sequence and a fourth cyclic shift value,
wherein, when the first cyclic shift value is equal to the third cyclic shift value plus one (1), the second cyclic shift value is not equal to the fourth cyclic shift value plus one (1).
35. The apparatus of claim 34, wherein the second cyclic shift value is determined based on the first cyclic shift value.
36. The apparatus of claim 34, wherein the first sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the first cyclic shift value, and
the second sequence is defined by a product of the basic sequence and a complex sine wave corresponding to the second cyclic shift value.
37. The apparatus of claim 34, wherein the first cyclic shift value is determined also based on a first symbol number of the first transmission time, and the second cyclic shift value is determined also based on a second symbol number of the second transmission time.
38. The apparatus of claim 34, wherein each of the first sequence and the second sequence c i n (k) is given as follows:
c
_
i
n
(
k
)
=
c
_
0
⊗
ψ
_
i
n
(
k
)
c
_
0
=
[
c
0
(
0
)
c
0
(
1
)
…
c
0
(
N
f
-
1
)
]
T
ψ
_
i
n
(
k
)
=
[
1
e
-
j
2
π
N
f
Δ
τ
i
n
(
k
)
…
e
-
j
2
π
N
f
(
N
f
-
1
)
Δ
τ
i
n
(
k
)
]
T
,
wherein c 0 denotes the basic sequence, Δτ·i n (k) denotes the first or second cyclic-shift value, and N f denotes the number of subcarriers.
39. The communication apparatus of claim 34, wherein the first cyclic shift value and the second cyclic shift value are UE-specific.Cited by (0)
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References (0)
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