Method for controlling uplink transmission in mobile communication network and apparatus therefor

1. A method for controlling uplink transmission in a mobile communication network by a transmission point, the method comprising:

generating, by the transmission point, first configuration information indicating frequency hopping to be newly applied to uplink transmission of a user equipment when a reception point to receive the uplink transmission of the user equipment is different from the transmission point performing a downlink transmission to the user equipment, wherein the first configuration information includes Physical Uplink Shared CHannel (PUSCH) hopping parameter sets configurable for the user equipment;

transmitting, by the transmission point, a first signal including the first configuration information to the user equipment; and

transmitting, by the transmission point to the user equipment, an uplink scheduling grant including information indicating, among the PUSCH hopping parameter sets, one set to be applied to a frequency hopping reconfiguration for the uplink transmission of the user equipment when a dynamic parameter set selection mode is activated in the user equipment,

wherein the reception point receives, from the user equipment, a second signal to which a frequency hopping parameter selected based on the set indication information included in the uplink scheduling grant is applied; and

wherein the dynamic parameter set selection mode is activated or deactivated by transmitting signaling for activating or deactivating the dynamic parameter set selection mode to the user equipment.

2. The method as claimed in claim 1 , wherein the first configuration information includes one of a user equipment-specific reconfiguration message for reconfiguring a PUSCH hopping parameter of the user equipment and a reception point reconfiguration Radio Resource Control (RRC) message including a PUSCH hopping parameter reconfiguration value of the user equipment.

3. The method as claimed in claim 1 , wherein:

the transmitting the uplink scheduling grant is performed after the transmitting of the first signal including the first configuration information, and

the transmitting the uplink scheduling grant comprises including the information indicating the one set of the PUSCH hopping parameter sets in an information location separately defined in an uplink scheduling grant of the user equipment, and transmitting the uplink scheduling grant including the information to the user equipment.

4. The method as claimed in claim 1 , wherein the first configuration information includes information that instructs deactivation of PUSCH hopping of the user equipment.

5. The method as claimed in claim 1 , wherein the PUSCH hopping parameter sets are transmitted through a user equipment (UE)-specific RRC signaling or a cell-specific RRC signaling.

6. The method as claimed in claim 1 , wherein:

each of the PUSCH hopping parameter sets includes a set identification (ID) and at least one corresponding frequency hopping parameter; and

the information indicating the one set to be applied to the frequency hopping reconfiguration includes the set ID.

7. A method for controlling uplink transmission in a mobile communication network by a user equipment, the method comprising:

receiving, by the user equipment, first configuration information indicating frequency hopping to be newly applied to uplink transmission from a transmission point when a reception point to receive the uplink transmission of the user equipment is different from the transmission point performing a downlink transmission to the user equipment, wherein the first configuration information includes Physical Uplink Shared CHannel (PUSCH) hopping parameter sets configurable for the user equipment;

receiving, by the user equipment from the transmission point, an uplink scheduling grant including information indicating, among the PUSCH hopping parameter sets, one set to be applied to a frequency hopping reconfiguration for the uplink transmission of the user equipment, when a dynamic parameter set selection mode is activated in the user equipment;

selecting, by the user equipment, a frequency hopping parameter to be applied to the uplink transmission to the reception point, based on the set indication information included in the uplink scheduling grant; and

transmitting, by the user equipment, a second signal, to which the selected frequency hopping parameter is applied, to the reception point different from the transmission point,

wherein the dynamic parameter set selection mode is activated or deactivated by receiving signaling for activating or deactivating the dynamic parameter set selection mode from the transmission point.

8. The method as claimed in claim 7 , wherein the first configuration information includes one of a user equipment-specific reconfiguration message for reconfiguring a PUSCH hopping parameter of the user equipment, and a reception point reconfiguration Radio Resource Control (RRC) message including a PUSCH hopping parameter reconfiguration value of the user equipment.

9. The method as claimed in claim 7 , wherein:

the receiving the uplink scheduling grant is performed after the receiving of the first configuration information; and

the set indication information is included in an information location separately defined in the uplink scheduling grant.

10. The method as claimed in claim 7 , wherein the first configuration information includes information instructing deactivation of PUSCH hopping of the user equipment.

11. The method as claimed in claim 7 , wherein the PUSCH hopping parameter sets are transmitted through a user equipment (UE)-specific RRC signaling or a cell-specific RRC signaling.

12. The method as claimed in claim 7 , wherein:

each of the PUSCH hopping parameter sets includes a set identification (ID) and at least one corresponding frequency hopping parameter; and

the information indicating the one set to be applied to the frequency hopping reconfiguration includes the set ID.

13. A user equipment comprising:

a transmission unit configured to transmit a signal;

a reception unit configured to:

(i) receive first configuration information indicating frequency hopping to be newly applied to uplink transmission from a transmission point when a reception point to receive the uplink transmission of the user equipment is different from the transmission point performing a downlink transmission to the user equipment, wherein the first configuration information includes Physical Uplink Shared CHannel (PUSCH) hopping parameter sets configurable for the user equipment; and

(ii) receive, from the transmission point, an uplink scheduling grant including information indicating, among the PUSCH hopping parameter sets, one set to be applied to a frequency hopping reconfiguration for the uplink transmission of the user equipment, when a dynamic parameter set selection mode is activated in the user equipment; and

a control unit configured to select a frequency hopping parameter to be applied to the uplink transmission to the reception point, based on the set indication information included in the uplink scheduling grant, and to generate a second signal to which the selected frequency hopping parameter is applied,

wherein the transmission unit is configured to transmit the second signal to the reception point different from the transmission point; and

wherein the dynamic parameter set selection mode is activated or deactivated by receiving signaling for activating or deactivating the dynamic parameter set selection mode from the transmission point.

14. The user equipment as claimed in claim 13 , wherein the first configuration information includes one of a user equipment-specific reconfiguration message for reconfiguring a PUSCH hopping parameter of the user equipment and a reception point reconfiguration Radio Resource Control (RRC) message including a PUSCH hopping parameter reconfiguration value of the user equipment.

15. The user equipment as claimed in claim 13 , wherein:

the reception unit is configured to receive, from the transmission point, the uplink scheduling grant including the information indicating the one set of the PUSCH hopping parameter sets after the reception unit receives the first configuration information; and

the set indication information is included in an information location separately defined in the uplink scheduling grant.

16. The user equipment as claimed in claim 13 , wherein the first configuration information includes information instructing deactivation of PUSCH hopping of the user equipment.

17. The user equipment as claimed in claim 13 , wherein the PUSCH hopping parameter sets are transmitted through a user equipment (UE)-specific RRC signaling or a cell-specific RRC signaling.

18. The user equipment as claimed in claim 13 , wherein:

each of the PUSCH hopping parameter sets includes a set identification (ID) and at least one corresponding frequency hopping parameter; and

the information indicating the one set to be applied to the frequency hopping reconfiguration includes the set ID.