Resource allocation method, device and system of wireless communication system
View Patent ↗Disclosed are a UE of a wireless communication system and a wireless communication method using the same. More particularly, the method including receiving scheduling information including resource allocation information, wherein the resource allocation information comprises a RIV determined based on the number of RBs of a first BWP, and transmitting or receiving data on a RB set corresponding to the RIV in a second BWP, wherein the number of RBs of the second BWP is greater than the number of RBs of the first BWP, the starting RB index S and the number of RBs of the RB set corresponding to the RIV in the second BWP are given in powers of 2 and a device for the same are disclosed.
1. A user equipment (UE) for use in a wireless communication system, the UE comprising:
a processor; and
a communication module,
wherein the processor is configured to:
receive downlink control information (DCI) including a resource indication value (MV), wherein the MV is defined to indicate a starting index and a length, with reference to a number N BWP1 of resource blocks (RBs) in a first bandwidth part (BWP); and
transmit or receive a physical shared channel on a contiguous RB set corresponding to the RIV within a second BWP, wherein the second BWP is different from the first BWP and has a number N BWP2 of RBs,
wherein, when N BWP2 >N BWP1 , a starting index S and a length L of the contiguous RB set have respectively one of the following values, based on the RIV:
the starting index S: {0, K, 2*K, . . . , (N BWP1 −1)*K}, and
the length L: {K, 2*K, 3*K, . . . , N BWP1 *K},
where K has a value within a set of {1, 2, . . . , 2 n }, based on N BWP2 /N BWP1 , and n represents a positive integer, and
where S and L are expressed in unit of RB.
2. The UE of claim 1 , wherein a relation between the first BWP and the second BWP comprises:
(first BWP, second BWP)=(initial BWP, active BWP), or
(first BWP, second BWP)=(currently activated BWP, newly activated BWP),
where the currently activated BWP is an active BWP at a time when the scheduling DCI is received, and the newly activated BWP is a BWP indicated by a bandwidth part indicator (BPI) in the DCI.
3. The UE of claim 1 , wherein K and N BWP2 /N BWP1 satisfy a relation including at least part of the following table:
X
1 < X < 2
2 ≤ X < 4
4 ≤ X < 8
8 ≤ X < 16
K
1
2
4
8
where X is N BWP2 /N BWP1 .
4. The UE of claim 1 , wherein the MV has a value satisfying the following equation:
RIV= N BWP1 *( L′− 1)+ S ′, if ( L′− 1)≤floor( N BWP1 /2), and
RIV= N BWP1 *( N BWP1 −L′+ 1)+( N BWP1 −1− S ′), if ( L′− 1)>floor( N BWP1 /2),
where L′ is a value of 1≤L′≤N BWP1 −S′ as L/K, and S′ is S/K, and
where floor is a flooring function.
5. The UE of claim 1 , wherein when N BWP1 ≥N BWP2 , the starting index S and the length L of the contiguous RB set have one of the following values, respectively:
the starting RB index S: {0, 1, 2, . . . , N BWP2 −1}, and
the length L: {1, 2, 3, . . . , N BWP2 }.
6. A base station (BS) for use in a wireless communication system, the BS comprising:
a processor; and
a communication module,
wherein the processor is configured to:
transmit downlink control information (DCI) including a resource indication value (RIV), wherein the MV is defined to indicate a starting index and a length, with reference to a number N BWP1 of resource blocks (RBs) in a first bandwidth part (BWP); and
receive or transmit a physical shared channel on a contiguous RB set corresponding to the RIV within a second BWP, wherein the second BWP is different from the first BWP and has a number N BWP2 of RBs,
wherein, when N BWP2 >N BWP1 , a starting index S and a length L of the contiguous RB set have respectively one of the following values, based on the RIV:
the starting index S: {0, K, 2*K, . . . , (N BWP1 −1)*K}, and
the length L: {K, 2*K, 3*K, . . . , N BWP1 *K},
where K has a value within a set of {1, 2, . . . , 2 n }, based on N BWP2 /N BWP1 , and n represents a positive integer, and
where S and L are expressed in unit of RB.
7. The BS of claim 6 , wherein a relation between the first BWP and the second BWP comprises:
(first BWP, second BWP)=(initial BWP, active BWP), or
(first BWP, second BWP)=(currently activated BWP, newly activated BWP),
where the currently activated BWP is an active BWP at a time when the DCI is received, and the newly activated BWP is a BWP indicated by a bandwidth part indicator (BPI) in the DCI.
8. The BS of claim 6 , wherein K and N BWP2 /N BWP1 satisfy a relation including at least part of the following table:
X
1 < X < 2
2 ≤ X < 4
4 ≤ X < 8
8 ≤ X < 16
K
1
2
4
8
where X is N BWP2 /N BWP1 .
9. The BS of claim 6 , wherein the MV has a value satisfying the following equation:
RIV= N BWP1 *( L′− 1)+ S ′, if ( L′− 1)≤floor( N BWP1 /2), and
RIV= N BWP1 *( N BWP1 −L′+ 1)+( N BWP1 −1− S ′), if ( L′− 1)>floor( N BWP1 /2),
where L′ is a value of 1≤L′≤N BWP1 −S′ as L/K, and S′ is S/K, and
where floor is a flooring function.
10. The BS of claim 6 , wherein when N BWP1 ≥N BWP2 , the starting index S and the length L of the contiguous RB set have one of the following values, respectively:
the starting RB index S: {0, 1, 2, . . . , N BWP2 −1}, and
the length L: {1, 2, 3, . . . , N BWP2 }.
11. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving downlink control information (DCI) including a resource indication value (RIV), wherein the MV is defined to indicate a starting index and a length, with reference to a number N BWP1 of resource blocks (RBs) in a first bandwidth part (BWP); and
transmitting or receiving a physical shared channel on a contiguous RB set corresponding to the MV within a second BWP, wherein the second BWP is different from the first BWP and has a number N BWP2 of RBs,
wherein, when N BWP2 >N BWP1 , a starting index S and a length L of the contiguous RB set have respectively one of the following values, based on the RIV:
the starting index S: {0, K, 2*K, . . . , (N BWP1 −1)*K}, and
the length L: {K, 2*K, 3*K, . . . , N BWP1 *K},
where K has a value within a set of {1, 2, . . . , 2 n }, based on N BWP2 /N BWP1 , and n represents a positive integer, and
where S and L are expressed in unit of RB.
12. The method of claim 11 , wherein a relation between the first BWP and the second BWP comprises:
(first BWP, second BWP)=(initial BWP, active BWP), or
(first BWP, second BWP)=(currently activated BWP, newly activated BWP),
where the currently activated BWP is an active BWP at a time when the DCI is received, and the newly activated BWP is a BWP indicated by a bandwidth part indicator (BPI) in the DCI.
13. The method of claim 11 , wherein K and N BWP2 /N BWP1 satisfy a relation including at least part of the following table:
X
1 < X < 2
2 ≤ X < 4
4 ≤ X < 8
8 ≤ X < 16
K
1
2
4
8
where X is N BWP2 /N BWP1 .
14. The method of claim 11 , wherein the RIV has a value satisfying the following equation:
RIV= N BWP1 *( L′− 1)+ S ′, if ( L′− 1)≤floor( N BWP1 /2), and
RIV= N BWP1 *( N BWP1 −L′+ 1)+( N BWP1 −1− S ′), if ( L′− 1)>floor( N BWP1 /2),
where L′ is a value of 1≤L′≤N BWP1 −S′ as L/K, and S′ is S/K, and
where floor is a flooring function.
15. The method of claim 11 , wherein when N BWP1 ≥N BWP2 , the starting index S and the length L of the contiguous RB set have one of the following values, respectively:
the starting RB index S: {0, 1, 2, . . . , N BWP2 −1}, and
the length L: {1, 2, 3, . . . , N BWP2 }.
16. A method performed by a base station (BS) in a wireless communication system, the method comprising:
transmitting downlink control information (DCI) including a resource indication value (RIV), wherein the MV is defined to indicate a starting index and a length, with reference to a number N BWP1 of resource blocks (RBs) in a first bandwidth part (BWP); and
transceiving receiving or transmitting a physical shared channel on a contiguous RB set corresponding to the RIV within a second BWP, wherein the second BWP is different from the first BWP and has a number N BWP2 of RBs,
wherein, when N BWP2 >N BWP1 , a starting index S and a length L of the contiguous RB set have respectively one of the following values, based on the RIV:
the starting index S: {0, K, 2*K, . . . , (N BWP1 −1)*K}, and
the length L: {K, 2*K, 3*K, . . . , N BWP1 *K},
where K has a value within a set of {1, 2, . . . , 2 n }, based on N BWP2 /N BWP1 , and n represents a positive integer, and
where S and L are expressed in unit of RB.
17. The method of claim 16 , wherein a relation between the first BWP and the second BWP comprises:
(first BWP, second BWP)=(initial BWP, active BWP), or
(first BWP, second BWP)=(currently activated BWP, newly activated BWP),
where the currently activated BWP is an active BWP at a time when the DCI is received, and the newly activated BWP is a BWP indicated by a bandwidth part indicator (BPI) in the DCI.
18. The method of claim 16 , wherein K and N BWP2 /N BWP1 satisfy a relation including at least part of the following table:
X
1 < X < 2
2 ≤ X < 4
4 ≤ X < 8
8 ≤ X < 16
K
1
2
4
8
where X is N BWP2 /N BWP1 .
19. The method of claim 16 , wherein the MV has a value satisfying the following equation:
RIV= N BWP1 *( L′− 1)+ S ′, if ( L′− 1)≤floor( N BWP1 /2), and
RIV= N BWP1 *( N BWP1 −L′+ 1)+( N BWP1 −1− S ′), if ( L′− 1)>floor( N BWP1 /2),
where L′ is a value of 1≤L′≤N BWP1 −S′ as L/K, and S′ is S/K, and
where floor is a flooring function.
20. The method of claim 16 , wherein when N BWP1 ≥N BWP2 , the starting index S and the length L of the contiguous RB set have one of the following values, respectively:
the starting RB index S: {0, 1, 2, . . . , N BWP2 −1}, and
the length L: {1, 2, 3, . . . , N BWP2 }.