IP Library › Granted Patent US 10,567,143
Granted Patent B2
US 10,567,143 · App. 16/142,459 · Granted Feb 18, 2020

Method and apparatus to receive and transmit data in a mobile communication system

Inventor: Yeongmoon Son (Yongin-si, KR)
H04L5/0094H04L1/1819H04W72/0446H04W72/14H04W76/27H04W76/28H04W80/02H04W80/08
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Quick Facts
Patent No.
US 10,567,143
App. No.
16/142,459
Granted
Feb 18, 2020
Kind
B2
Abstract

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.

Claims (86)

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.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 6, 2025
From: SON, YEONGMOON
To: THEFARMERBEAR
Reel/Frame 071949/0832 →
Continuity (2)
Provisional Application 62564243 · Sep 27, 2017
Related Publication 20190199503A1 · Jun 27, 2019
Cited By (2)
US 12,396,008 US 12,621,903