Apparatus and method for allocating resources in a single carrier-frequency division multiple access system
View Patent ↗An apparatus and method for allocating resources in an Single Carrier-Frequency Division Multiple Access (SC-FDMA) communication system are provided, in which a Node B determines on a cell basis whether to turn or off inter-subband hopping and whether to turn on or off mirroring for a resource unit for the UE on a frequency axis along which at least two subbands are defined, at set hopping times, selects a resource unit by selectively performing inter-subband hopping and mirroring on the resource unit for the UE according to the determination, and allocates the selected resource unit to the UE.
1. A method for transmitting data by a User Equipment (UE) in a communication system using Single Carrier-Frequency Division Multiple Access (SC-FDMA), the method comprising:
receiving resource information from a Node B;
determining a hopping parameter;
determining a mirroring parameter using a random sequence for a cell;
determining a resource for data transmission based on the received resource information; and
transmitting the data using the resource for data transmission,
wherein hopping and mirroring are performed at a slot.
2. The method of claim 1 , wherein the hopping includes inter-subband hopping.
3. The method of claim 1 , wherein the mirroring includes intra-subband mirroring.
4. The method of claim 1 , wherein the hopping and the mirroring are further performed in periods of a sub-frame.
5. A method for receiving data by a Node B in a communication system using Single Carrier-Frequency Division Multiple Access (SC-FDMA), the method comprising:
transmitting resource information to a User Equipment (UE);
determining a resource used for receiving the data from the UE;
receiving the data through the determined resource; and
decoding the data,
wherein the resource used for receiving the data from the UE is determined according to a hopping parameter and a mirroring parameter,
wherein the mirroring parameter is determined based on a random sequence for a cell, and
wherein hopping and mirroring are performed at a slot.
6. The method of claim 5 , wherein the hopping includes inter-subband hopping.
7. The method of claim 5 , wherein the mirroring includes intra-subband mirroring.
8. The method of claim 5 , wherein the hopping and the mirroring are further performed in periods of a sub-frame.
9. An apparatus of a User Equipment (UE) for transmitting data to a Node B in a communication system using Single Carrier-Frequency Division Multiple Access (SC-FDMA), the apparatus comprising:
a data transmission controller for receiving resource information from the Node B, determining a hopping parameter, determining a mirroring parameter using a random sequence for a cell, and determining a resource for data transmission based on the received resource information; and
a mapper for mapping the data to the resource and transmitting the data to the Node B,
wherein the data transmission controller determines hopping and mirroring at a slot.
10. The apparatus of claim 9 , wherein the hopping includes inter-subband hopping.
11. The apparatus of claim 9 , wherein the mirroring includes intra-subband mirroring.
12. The apparatus of claim 9 , wherein the hopping and the mirroring are further performed in periods of a sub-frame.
13. An apparatus of a Node B for receiving data from User Equipments (UEs) in a communication system using Single Carrier-Frequency Division Multiple Access (SC-FDMA), the apparatus comprising:
a scheduler for allocating resources to the UEs and determining resources used for receiving the data from the UEs;
a demapper for demapping the data received through the resources from the UEs; and
a decoder for decoding the data,
wherein the scheduler determines the resources used for receiving the data according to a hopping parameter and a mirroring parameter,
wherein the mirroring parameter is determined based on a random sequence for a cell, and
wherein the scheduler determines hopping and mirroring at a slot.
14. The apparatus of claim 13 , wherein the hopping includes inter-subband hopping.
15. The apparatus of claim 13 , wherein the mirroring includes intra-subband mirroring.
16. The apparatus of claim 13 , wherein the hopping and the mirroring are further performed in periods of a sub-frame.