US2021120545A1PendingUtilityA1
Arrangement and method for identifying pucch format 3 resources
Est. expiryAug 20, 2030(~4.1 yrs left)· nominal 20-yr term from priority
H04W 72/21H04L 27/2636H04L 5/0053H04L 5/0051H04W 72/0446H04L 5/0016H04L 5/001H04L 5/0094H04W 72/0413
66
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Claims
Abstract
A user equipment and a method for identifying a resource to use for a transmission of control information on a physical uplink control channel, PUCCH, format 3 involve receiving a resource index from a serving radio base station, and identifying the resource to use for the transmission of the control information in a subframe based on the received resource index, wherein the identified resource is within a same confined set of physical resource blocks regardless of if a normal or a shortened PUCCH format 3 is used in the subframe.
Claims
exact text as granted — not AI-modified1 . A method performed by a user equipment of a wireless communication system, for identifying a resource to be used for a transmission of control information on a physical uplink control channel, PUCCH, format 3, the method comprising:
receiving a resource index from a serving radio base station; and identifying the resource within a confined set of physical resource blocks of a subframe based on the received resource index, regardless whether a normal or a shortened PUCCH format 3 is used in the subframe.
2 . The method according to claim 1 , wherein the identifying of the resource comprises:
identifying a physical resource block based on the received resource index, the identified physical resource block being same regardless if the normal or the shortened PUCCH format 3 is used in the subframe.
3 . The method according to claim 1 , wherein the identifying of the resource comprises:
calculating a modified resource index based on the received resource index and a total number of physical resource blocks available for PUCCH format 3, and identifying the resource based on the modified resource index.
4 . The method according to claim 3 , wherein the modified resource index is calculated as a modulo operation with the resource index as a dividend and the total number of physical resource blocks available for PUCCH format 3 as a divisor.
5 . The method according to claim 3 , wherein the identifying of the resource based on the modified resource index comprises:
identifying a physical resource block based on n PRB given by equation:
n
P
R
B
=
⌊
n
~
P
U
C
C
H
N
S
F
,
1
P
U
C
C
H
⌋
+
N
s
t
a
r
t
where ñ PUCCH is the modified resource index, N SF,1 PUCCH is a number of orthogonal sequences available for a physical resource block in a second time slot of the subframe, and N start is a starting position of the confined set of physical resource blocks.
6 . The method according to claim 3 , wherein the identifying of the resource based on the modified resource index comprises:
identifying an orthogonal sequence based on an orthogonal sequence index n oc given by:
n oc =ñ PUCCH mod N SF,1 PUCCH
where ñ PUCCH is the modified resource index, and N SF,1 PUCCH is a number of orthogonal sequences available for a physical resource block in a second time slot of the subframe.
7 . The method according to claim 1 , wherein the normal PUCCH format 3 has unique resource indices for each combination of resource blocks and orthogonal cover codes and a same combination of resource blocks and orthogonal cover codes are assigned to two resource indices of the shortened PUCCH format 3.
8 . The method according to claim 1 , further comprising:
transmitting the control information on the PUCCH format 3 using a combination of resource blocks and orthogonal cover codes corresponding to the resource index.
9 . The method according to claim 1 , wherein PUCCH format 3 carries multiple hybrid automatic repeat request (HARQ) bits corresponding to multiple component carriers for the user equipment.
10 . The method according to claim 1 , wherein the identifying of the resource further comprises identifying, for both the normal PUCCH format 3 and the shortened PUCCH format 3, an orthogonal sequence based on N SF,1 PUCCH , which is a number of orthogonal sequences available for a physical resource block in a second time slot of the subframe.
11 . A user equipment in a wireless communication system, configured to identify a resource to be used for a transmission of control information on a physical uplink control channel, PUCCH, format 3, the user equipment comprising:
a receiving unit configured to receive a resource index from a serving radio base station; and an identifying unit configured to identify the resource within a same confined set of physical resource blocks of a subframe based on the received resource index, regardless whether a normal or a shortened PUCCH format 3 is used in the subframe.
12 . The user equipment according to claim 11 , wherein the identifying unit is also configured to identify a physical resource block based on the resource index, the identified physical resource block being same regardless if the normal or the shortened PUCCH format 3 is used in the subframe.
13 . The user equipment according to claim 11 , wherein the identifying unit is further configured:
to calculate a modified resource index based on the received resource index and a total number of physical resource blocks available for PUCCH format 3, and to identify the resource based on the modified resource index.
14 . The user equipment according to claim 13 , wherein the identifying unit is further configured to calculate the modified resource index as a modulo operation with the received resource index as a dividend and the total number of physical resource blocks available for PUCCH format 3 as a divisor.
15 . The user equipment according to claim 13 , wherein the identifying unit is configured to identify a physical resource block based on n PRB given by equation:
n
P
R
B
=
⌊
n
~
P
U
C
C
H
N
S
F
,
1
P
U
C
C
H
⌋
+
N
s
t
a
r
t
where ñ PUCCH is the modified resource index, N SF,1 PUCCH is a number of orthogonal sequences available for a physical resource block in a second time slot of the subframe, and N start is a starting position of the confined set of physical resource blocks.
16 . The user equipment according to claim 13 , wherein the identifying unit is configured to identify an orthogonal sequence based on an orthogonal sequence index n oc given by:
n oc =ñ PUCCH mod N SF,1 PUCCH
where ñ PUCCH is the modified resource index, and N SF,1 PUCCH is a number of orthogonal sequences available for a physical resource block in a second time slot of the subframe.
17 . The user equipment according to claim 11 , wherein the normal PUCCH format 3 has unique resource indices for each combination of resource blocks and orthogonal cover codes and a same combination of resource blocks and orthogonal cover codes are assigned to two resource indices of the shortened PUCCH format 3.
18 . The user equipment according to claim 11 , further comprising:
a transmitter adapted to transmit the control information on the PUCCH format 3 using a combination of resource blocks and orthogonal cover codes corresponding to the received index.
19 . The user equipment according to claim 9 , wherein PUCCH format 3 carries multiple hybrid automatic repeat request (HARQ) bits corresponding to multiple component carriers for the user equipment.
20 . The user equipment according to claim 11 , wherein the identifying unit is further configured to identify, for both the normal PUCCH format 3 and the shortened PUCCH format 3, an orthogonal sequence based on N SF,1 PUCCH , which is a number of orthogonal sequences available for a physical resource block in a second time slot of the subframe.Join the waitlist — get patent alerts
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