Resource allocation method, device and system of wireless communication system
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 3 rd generation partnership project (3GPP)-based wireless communication system having a plurality of Bandwidth Parts (BWPs) in a cell, the UE comprising:
a processor, and
a communication module,
wherein the processor is configured to:
receive downlink control information (DCI) for scheduling a physical shared channel, wherein the DCI includes a resource indication value (RIV) defined with reference to a size N BWP1 of a first BWP; and
based on the RIV of the DCI, transmit or receive the physical shared channel on a contiguous resource block (RB) set within a second BWP with a size N BWP2 ,
wherein, when N BWP2 >N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RB set within the second BWP as follows, by using a scaling factor K:
S: an element of {0, K, 2*K, . . . , (N BWP1 −1)*K}, and
L: an element of {K, 2*K, 3*K, . . . , N BWP1 *K}, where
the scaling factor K is determined depending on (N BWP2 /N BWP1 ), within a set of values {2 n } where n represents non-negative integers starting from 0.
2. The UE of claim 1 , wherein both the first BWP and the second BWP belong to the cell, and a relation between the first BWP and the second BWP comprises:
(first BWP, second BWP)=(initial BWP, active BWP).
3. The UE of claim 1 , wherein the scaling factor 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 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 L/K (1≤L′≤N BWP1 −S′), and S′ is S/K, and
where floor represents a flooring function.
5. The UE of claim 1 , wherein when N BWP2 ≤N BWP1 , the RIV corresponds to the starting RB index S and the length L of the contiguous RB set within the second BWP as follows:
S: an element of {0, 1, 2, . . . }, and
L: an element of {1, 2, 3, . . . }.
6. A base station (BS) for use in a 3 rd generation partnership project (3GPP)-based wireless communication system having a plurality of Bandwidth Parts (BWPs) in a cell, the BS comprising:
a processor; and
a communication module,
wherein the processor is configured to:
transmit downlink control information (DCI) for scheduling a physical shared channel, wherein the DCI includes a resource indication value (RIV) defined with reference to a size N BWP1 of a first BWP; and
based on the RIV of the DCI, transmit or receive the physical shared channel on a contiguous resource block (RB) set within a second BWP with a size N BWP2 ,
wherein, when N BWP2 >N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RB set within the second BWP as follows, by using a scaling factor K:
S: an element of {0, K, 2*K, . . . , (N BWP1 −1)*K}, and
L: an element of {K, 2*K, 3*K, . . . , N BWP1 *K}, where
the scaling factor K is determined depending on (N BWP2 /N BWP1 ), within a set of values {2 n } where n represents non-negative integers starting from 0.
7. The BS of claim 6 , wherein both the first BWP and the second BWP belong to the cell, and a relation between the first BWP and the second BWP comprises:
(first BWP, second BWP)=(initial BWP, active BWP).
8. The BS of claim 6 , wherein the scaling factor 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 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 L/K (1≤L′≤N BWP1 −S′), and S′ is S/K, and
where floor represents a flooring function.
10. The BS of claim 6 , wherein when N BWP2 ≤N BWP1 , the RIV corresponds to the starting RB index S and the length L of the contiguous RB set within the second BWP as follows:
S: an element of {0, 1, 2, . . . }, and
L: an element of {1, 2, 3, . . . }.
11. A method for use by a user equipment (UE) in a 3 rd generation partnership project (3GPP)-based wireless communication system having a plurality of Bandwidth Parts (BWPs) in a cell, the method comprising:
receiving downlink control information (DCI) for scheduling a physical shared channel, wherein the DCI includes a resource indication value (RIV) defined with reference to a size N BWP1 of a first BWP; and
based on the RIV of the DCI, transmitting or receiving the physical shared channel on a contiguous resource block (RB) set within a second BWP with a size N BWP2 ,
wherein, when N BWP2 >N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RB set within the second BWP as follows, by using a scaling factor K:
S: an element of {0, K, 2*K, . . . , (N BWP1 −1)*K}, and
L: an element of {K, 2*K, 3*K, . . . , N BWP1 *K}, where
the scaling factor K is determined depending on (N BWP2 /N BWP1 ), within a set of values {2 n } where n represents non-negative integers starting from 0.
12. The method of claim 11 , wherein both the first BWP and the second BWP belong to the cell, and a relation between the first BWP and the second BWP comprises:
(first BWP, second BWP)=(initial BWP, active BWP).
13. The method of claim 11 , wherein the scaling factor 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 L/K (1≤L′≤N BWP1 −S′), and S′ is S/K, and
where floor represents a flooring function.
15. The method of claim 11 , wherein when N BWP2 ≤N BWP1 , the RIV corresponds to the starting RB index S and the length L of the contiguous RB set within the second BWP as follows:
S: an element of {0, 1, 2, . . . }, and
L: an element of {1, 2, 3, . . . }.
16. A method for use by a base station (BS) in a 3 rd generation partnership project (3GPP)-based wireless communication system having a plurality of Bandwidth Parts (BWPs) in a cell, the method comprising:
transmitting downlink control information (DCI) for scheduling a physical shared channel, wherein the DCI includes a resource indication value (RIV) defined with reference to a size N BWP1 of a first BWP; and
based on the RIV of the DCI, transmitting or receiving the physical shared channel on a contiguous resource block (RB) set within a second BWP with a size N BWP2 ,
wherein, when N BWP2 >N BWP1 , the RIV corresponds to a starting RB index S and a length L of the contiguous RB set within the second BWP as follows, by using a scaling factor K:
S: an element of {0, K, 2*K, . . . , (N BWP1 −1)*K}, and
L: an element of {K, 2*K, 3*K, . . . , N BWP1 *K}, where
the scaling factor K is determined depending on (N BWP2 /N BWP1 ), within a set of values {2 n } where n represents non-negative integers starting from 0.
17. The method of claim 16 , wherein both the first BWP and the second BWP belong to the cell, and a relation between the first BWP and the second BWP comprises:
(first BWP, second BWP)=(initial BWP, active BWP).
18. The method of claim 16 , wherein the scaling factor 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 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 L/K (1≤L′N BWP1 −S′), and S′ is S/K, and
where floor represents a flooring function.
20. The method of claim 16 , wherein when N BWP2 ≤N BWP1 , the RIV corresponds to the starting RB index S and the length L of the contiguous RB set within the second BWP as follows:
S: an element of {0, 1, 2, . . . }, and
L: an element of {1, 2, 3, . . . }.