IP Library Granted Patent US 12,225,523
Granted Patent B2
US 12,225,523 · App. 17/576,568 · Granted Feb 11, 2025

Coverage enhancement

Inventors: Jaenam Shim (Seoul, KR); Hyunsoo Ko (Seoul, KR); Suckchel Yang (Seoul, KR); Hyangsun You (Seoul, KR)
Assignee: LG Electronics Inc.
H04W72/1268H04L1/08H04W72/23
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Quick Facts
Patent No.
US 12,225,523
App. No.
17/576,568
Granted
Feb 11, 2025
Kind
B2
Abstract

The present disclosure proposes a synchronization method for the DU transmission timing of the IAB node.

Claims (43)

1. A method performed by a user equipment (UE) in a wireless communication system, the method comprising:

receiving repeated transmission configuration information;

wherein the repeated transmission configuration information is information for configuring repeated transmission for a physical uplink shared channel (PUSCH) to the UE, and

wherein the repeated transmission configuration information informs a plurality of time domain resource sets in which the repeated transmission is performed,

receiving a timing advance command; and

based on that an event is included in a specific time domain resource set included in the plurality of time domain resource sets, performing a PUSCH transmission within an actual time domain resource set included in the specific time domain resource set,

wherein the event which causes channel characteristics not to be maintained across the repeated transmission is an uplink timing adjustment in response to the timing advance command,

wherein a start of the actual time domain resource set is a first symbol of the PUSCH transmission immediately after the event within the specific time domain resource set, and

wherein an end of the actual time domain resource set is a last symbol of the PUSCH transmission which reaches an end of the specific time domain resource set.

2. The method of claim 1 , wherein each of the plurality of time domain resource sets is repeatedly configured in a time domain based on the repeated transmission configuration information.

3. The method of claim 1 , wherein the plurality of time domain resource sets are configured for transmission of a demodulation reference signal (DMRS) bundle.

4. The method of claim 3 , wherein a resource configured as the DMRS bundle is configured to have the same channel characteristics or to be included in a specific range.

5. The method of claim 4 , wherein the channel characteristics include some or all of a transmission/reception spatial filter, indices of the spatial filters, a holding time of a TA command, transmit power, a Doppler effect, and a coherence time.

6. The method of claim 3 , wherein the channel characteristics of the DMRS bundle transmitted in the plurality of time domain resource sets are the same for resources included in the plurality of time domain resource sets or included in a specific range.

7. The method of claim 6 , wherein the channel characteristics of the DMRS bundle are the same for resources included in the plurality of time domain resource sets and the actual time domain resource set or included in a specific range.

8. The method of claim 1 , wherein the actual time domain resource set is configured from a resource immediately after the event in the time domain.

9. The method of claim 1 , wherein, based on that the UE receives a group common transmission power control (TPC) command within the specific time domain resource set, the UE performs an uplink power control based on the group common TPC command after the specific time domain resource set is terminated.

10. A user equipment (UE) comprising:

one or more memories configured to store instructions;

one or more transceivers; and

one or more processors configured to connect the one or more memories to the one or more transceivers, wherein the one or more processors execute the instructions to:

receive repeated transmission configuration information,

wherein the repeated transmission configuration information is information for configuring repeated transmission for a physical uplink shared channel (PUSCH) to the UE, and

wherein the repeated transmission configuration information informs a plurality of time domain resource sets in which the repeated transmission is performed,

receive a timing advance command, and

based on that an event is included in a specific time domain resource set included in the plurality of time domain resource sets, perform a PUSCH transmission within an actual time domain resource set included in the specific time domain resource set,

wherein the event which causes channel characteristics not to be maintained across the repeated transmission is an uplink timing adjustment in response to the timing advance command,

wherein a start of the actual time domain resource set is a first symbol of the PUSCH transmission immediately after the event within the specific time domain resource set, and

wherein an end of the actual time domain resource set is a last symbol of the PUSCH transmission which reaches an end of the specific time domain resource set.

11. The UE of claim 10 , wherein, based on that the UE receives a group common transmission power control (TPC) command within the specific time domain resource set, the UE performs an uplink power control based on the group common TPC command after the specific time domain resource set is terminated.

12. An apparatus configured to control a user equipment (UE), the apparatus comprising:

one or more processors; and

one or more memories connected to be operable by the one or more processors and configured to store instructions,

wherein the one or more processor execute the instructions to:

receive repeated transmission configuration information,

wherein the repeated transmission configuration information is information for configuring repeated transmission for a physical uplink shared channel (PUSCH) to the UE, and

wherein the repeated transmission configuration information informs a plurality of time domain resource sets in which the repeated transmission is performed,

receive a timing advance command, and

based on that an event is included in a specific time domain resource set included in the plurality of time domain resource sets, perform a PUSCH transmission within an actual time domain resource set included in the specific time domain resource set,

wherein the event which causes channel characteristics not to be maintained across the repeated transmission is an uplink timing adjustment in response to the timing advance command,

wherein a start of the actual time domain resource set is a first symbol of the PUSCH transmission immediately after the event within the specific time domain resource set, and

wherein an end of the actual time domain resource set is a last symbol of the PUSCH transmission which reaches an end of the specific time domain resource set.

13. The apparatus of claim 12 , wherein, based on that the UE receives a group common transmission power control (TPC) command within the specific time domain resource set, the UE performs an uplink power control based on the group common TPC command after the specific time domain resource set is terminated.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 8, 2022
From: SHIM, JAENAM; KO, HYUNSOO; YANG, SUCKCHEL; YOU, HYANGSUN
To: LG ELECTRONICS INC.
Reel/Frame 059200/0140 →
Priority Claims (1)
KR 10-2021-0005307 · Jan 14, 2021 · national
Continuity (1)
Related Publication 20220225363A1 · Jul 14, 2022
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