Method and apparatus to receive and transmit data in a mobile communication system
View Patent ↗Data transfer method and apparatus for use in a mobile communication system are provided. Method to perform discontinuous reception includes receiving DRX configuration information from the base station, determining a specific subframe based on parameters included in the configuration information, determining a specific point of time within the subframe based on a parameter included in the configuration information, starting onDurationTimer at the determined point of time of the determined subframe and monitoring PDCCH when the onDurationTimer is running.
1. A method by a terminal, the method comprising:
reporting supported SCS(Sub Carrier Spacing)s per frequency band to a base station;
receiving DRX (Discontinuous Reception) configuration in a RRC(Radio Resource Control) message from the base station;
determining a subframe to start onDurationTimer based on 1 st DRX parameter and 2 nd DRX parameter;
determining a point of time within the determined subframe based on 3 rd DRX parameter;
starting the onDurationTimer at the determined point of time of the determined subframe;
starting drx-RetransmissionTimer after downlink assignment is received; and
starting drx-ULRetransmissionTimer after uplink assignment is received,
wherein the onDurationTimer, the 1 st DRX parameter, the 2 nd DRX parameter, the 3 rd DRX parameter, the drx-RetransmissionTimer and the drx-ULRetransmissionTimer are signaled by a single RRC message,
wherein length of the onDurationTimer is determined by a value configured for the onDurationTimer,
wherein length of the drx-RetransmissionTimer is determined by a value configured for the drx-RetransmissionTimer and the SCS,
wherein length of the drx-ULRetransmissionTimer is determined by a value configured for the drx-ULRetransmissionTimer and the SCS.
2. The method of claim 1 , further comprising:
stopping the drx-ULRetransmissionTimer and starting HARQ (Hybrid automatic repeat reques) RTT (Round Trip Time) timer at different points of time.
3. The method of claim 1 , further comprising:
stopping the drx-RetransmissionTimer and starting HARQ RTT timer at the same point of time.
4. The method of claim 1 , further comprising:
starting the drx-RetransmissionTimer when HARQ RTT timer expires.
5. The method of claim 4 , further comprising:
expiring HARQ RTT timer after, since a downlink assignment is received for a 2 nd cell, a specific number of symbols of a 1 st cell and another specific number of symbols of the 2 nd cell.
6. A method by a base station, the method comprising:
receiving supported SCS(Sub Carrier Spacing)s per frequency band from a UE (User Equipment);
determining DRX (Discontinuous Reception) configuration for the UE;
transmitting to the UE a RRC(Radio Resource Control) message carrying DRX configuration;
determining a subframe to start onDurationTimer based on 1 st DRX parameter and 2 nd parameter;
determining a point of time within the determined subframe based on 3 rd DRX parameter;
starting the onDurationTimer at the determined point of time of the determined subframe;
starting drx-RetransmissionTimer after downlink assignment is scheduled; and
starting drx-ULRetransmissionTimer after uplink assignment is scheduled,
wherein the onDurationTimer, the 1 st DRX parameter, the 2 nd DRX parameter, 3 rd DRX parameter, the drx-RetransmissionTimer and the drx-ULRetransmissionTimer are signaled by a single RRC message,
wherein length of the onDurationTimer is determined by a value configured for the onDurationTimer,
wherein the length of the drx-RetransmissionTimer is determined by a value configured for the drx-RetransmissionTimer and the SCS,
wherein the length of the drx-ULRetransmissionTimer is determined by a value configured for the drx-ULRetransmissionTimer and the SCS.
7. The method of claim 6 , further comprising:
stopping the drx-ULRetransmissionTimer and starting HARQ (Hybrid automatic repeat reques) RTT (Round Trip Time) timer at different points of time.
8. The method of claim 6 , further comprising:
stopping the drx-RetransmissionTimer and starting HARQ RTT timer at the same point of time.
9. The method of claim 6 , further comprising:
starting the drx-RetransmissionTimer when HARQ RTT timer expires.
10. The method of claim 9 , further comprising:
HARQ RTT timer expires after, since a downlink assignment is scheduled for a 2 nd cell, a specific number of symbols of a 1 st cell and another specific number of symbols of the 2 nd cell.
11. A terminal in a wireless communication system, the terminal comprising:
a transceiver configured to transmit and receive a signal; and
a controller configured to control the transceiver to:
report supported SCS(Sub Carrier Spacing)s per frequency band to a base station;
receive DRX (Discontinuous Reception) configuration in a RRC(Radio Resource Control) message from the base station;
determine a subframe to start onDurationTimer based on 1 st DRX parameter and 2 nd DRX parameter;
determine a point of time within the determined subframe based on 3 rd DRX parameter;
start the onDurationTimer at the determined point of time of the determined subframe;
start drx-RetransmissionTimer after downlink assignment is received; and
start drx-ULRetransmissionTimer after uplink assignment is received,
wherein the onDurationTimer, the 1 st DRX parameter, the 2 nd DRX parameter, the 3 rd DRX parameter, the drx-RetransmissionTimer and the drx-ULRetransmissionTimer are signaled by a single RRC message,
wherein length of the onDurationTimer is determined by a value configured for the onDurationTimer,
wherein length of the drx-RetransmissionTimer is determined by a value configured for the drx-RetransmissionTimer and the SCS,
wherein length of the drx-ULRetransmissionTimer is determined by a value configured for the drx-ULRetransmissionTimer and the SCS.
12. The terminal of claim 11 ,
wherein the controller is further configured to stop the drx-ULRetransmissionTimer and to start HARQ (Hybrid automatic repeat reques) RTT (Round Trip Time) timer at different points of time.
13. The terminal of claim 11 ,
wherein the controller is further configured to stop the drx-RetransmissionTimer and to start HARQ RTT timer at the same point of time.
14. The terminal of claim 11 ,
wherein the controller is further configured to start the drx-RetransmissionTimer when HARQ RTT timer expires.
15. The terminal of claim 14 ,
wherein the controller is further configured to expire HARQ RTT timer after, since a downlink assignment is received for a 2 nd cell, a specific number of symbols of a 1 st cell and another specific number of symbols of the 2 nd cell.
16. A base station apparatus for controlling uplink transmission timing, the base station apparatus comprising:
a transceiver configured to transmit and receive a signal; and
a controller configured to control the transceiver to:
receive supported SCS(Sub Carrier Spacing)s per frequency band from a UE (User Equipment);
determine DRX (Discontinuous Reception) configuration for the UE;
transmit to the UE a RRC(Radio Resource Control) message carrying DRX configuration;
determine a subframe to start onDurationTimer based on 1 st DRX parameter and 2 nd DRX parameter;
determine a point of time within the determined subframe based on 3 rd DRX parameter;
start the onDurationTimer at the determined point of time of the determined subframe;
start drx-RetransmissionTimer after downlink assignment is scheduled; and
start drx-ULRetransmissionTimer after uplink assignment is scheduled,
wherein the onDurationTimer, the 1 st DRX parameter, the 2 nd DRX parameter, the 3 rd DRX parameter, the drx-RetransmissionTimer and the drx-ULRetransmissionTimer are signaled by a single RRC message,
wherein length of the onDurationTimer is determined by a value configured for the onDurationTimer,
wherein length of the drx-RetransmissionTimer is determined by a value configured for the drx-RetransmissionTimer and the SCS,
wherein length of the drx-ULRetransmissionTimer is determined by the value configured for the drx-ULRetransmissionTimer and the SCS.
17. The bases station of claim 16 ,
wherein the controller is further configured to stop the drx-ULRetransmissionTimer and to start HARQ (Hybrid automatic repeat reques) RTT (Round Trip Time) timer at different points of time.
18. The bases station of claim 16 ,
wherein the controller is further configured to stop the drx-RetransmissionTimer and starting HARQ RTT timer at the same point of time.
19. The bases station of claim 16 ,
wherein the controller is further configured to start the drx-RetransmissionTimer when HARQ RTT timer expires.
20. The bases station of claim 16 ,
wherein the controller is further configured to expire HARQ RTT timer after, since a downlink assignment is received for a 2 nd cell, a specific number of symbols of a 1 st cell and another specific number of symbols of the 2 nd cell.