Coverage enhancement

Patent metadata

Field	Value
Publication number	US-2022225322-A1
Application number	US-202217576554-A
Country	US
Kind code	A1
Filing date	Jan 14, 2022
Priority date	Jan 14, 2021
Publication date	Jul 14, 2022
Grant date	—

Abstract

The present disclosure proposes various methods for improving coverage. According to an embodiment of the present disclosure, when an unavailable resource exists in a resource set configured for repeated transmission of a physical uplink channel, the UE may determine a resource capable of actually performing repeated transmission of a physical uplink channel within the resource set. According to another embodiment of the present disclosure, when the terminal receives the TPC command within the resource corresponding to the DMRS bundle, the terminal may perform power control based on the TPC command after the resource.

First claim

1 . An uplink transmission method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving repetition transmission configuration information,
wherein the repetition transmission configuration information is information for configuring repetition transmission for a physical uplink channel to the UE, and
wherein the repetition transmission configuration information reports a plurality of time-domain resource sets in which the repetition transmission is performed; and
performing transmission on the physical uplink channel in an actual time-domain resource set included in a specific time-domain resource set, based on that a specific resource is included in the specific time-domain resource set included in the plurality of time-domain resource sets,
wherein a channel characteristic for time-domain resources included in the plurality of time-domain resource sets is identical,
wherein the channel characteristic includes power and a phase,
wherein the specific resource is a resource in which an event occurs,
wherein the event is an operation of determining that the channel characteristic cannot be maintained,
wherein the specific resource includes a resource in which the UE receives a timing advance (TA) command from a BS, and
wherein the UE does not perform UE autonomous TA adjustment in the actual time-domain resource set.

2 . The method of claim 1 ,
wherein the UE determines whether to perform the UE autonomous TA adjustment, and wherein the UE autonomous TA adjustment is TA adjustment performed by the UE without a TA command received by the UE from a base station (BS).

3 . The method of claim 2 , wherein the UE does not perform the UE autonomous TA adjustment in the actual time-domain resource set, based on that the UE determines to perform the UE autonomous TA adjustment in the actual time-domain resource set.

4 . The method of claim 3 , wherein the UE performs the UE autonomous TA adjustment after the specific time-domain resource set.

5 . The method of claim 1 , wherein the physical uplink channel is at least one of a physical uplink control channel (PUCCH) and a physical uplink shared channel (PUSCH).

6 . The method of claim 1 , wherein the actual time-domain resource set starts from a resource immediately subsequent to the specific resource on a time domain.

7 . The method of claim 1 , wherein the actual time-domain resource set ends at a last resource configured as the specific time-domain resource set on a time domain or a resource immediately previous to another specific resource among resources configured as the specific time-domain resource set.

8 - 10 . (canceled)

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

12 . A user equipment (UE) comprising:
one or more memories storing instructions; one or more transceivers; and one or more processors coupling the one or more memories and the one or more transceivers, wherein the one or more processors execute the instructions to: receive repetition transmission configuration information,
wherein the repetition transmission configuration information is information for configuring repetition transmission for a physical uplink channel to the UE, and
wherein the repetition transmission configuration information reports a plurality of time-domain resource sets in which the repetition transmission is performed; and
perform transmission on the physical uplink channel in an actual time-domain resource set included in a specific time-domain resource set, based on that a specific resource is included in the specific time-domain resource set included in the plurality of time-domain resource sets,
wherein a channel characteristic for time-domain resources included in the plurality of time-domain resource sets is identical,
wherein the channel characteristic includes power and a phase,
wherein the specific resource is a resource in which an event occurs,
wherein the event is an operation of determining that the channel characteristic cannot be maintained,
wherein the specific resource includes a resource in which the UE receives a timing advance (TA) command from a BS, and
wherein the UE does not perform UE autonomous TA adjustment in the actual time-domain resource set.

13 . An apparatus configured to control a user equipment (UE), the apparatus comprising:
one or more processors; and one or more memories operatively coupled by the one or more processors and storing instructions, wherein the one or more processors execute the instructions to: receive repetition transmission configuration information,
wherein the repetition transmission configuration information is information for configuring repetition transmission for a physical uplink channel to the UE, and
wherein the repetition transmission configuration information reports a plurality of time-domain resource sets in which the repetition transmission is performed; and
perform transmission on the physical uplink channel in an actual time-domain resource set included in a specific time-domain resource set, based on that a specific resource is included in the specific time-domain resource set included in the plurality of time-domain resource sets,
wherein a channel characteristic for time-domain resources included in the plurality of time-domain resource sets is identical,
wherein the channel characteristic includes power and a phase,
wherein the specific resource is a resource in which an event occurs,
wherein the event is an operation of determining that the channel characteristic cannot be maintained,
wherein the specific resource includes a resource in which the UE receives a timing advance (TA) command from a BS, and
wherein the UE does not perform UE autonomous TA adjustment in the actual time-domain resource set.

Assignees

• Lg Electronics Inc

Inventors

• Shim Jaenam
• Ko Hyunsoo
• Yang Suckchel
• You Hyangsun

Classifications

• H04W72/21 Primary

  in the uplink direction of a wireless link, i.e. towards the network · CPC title

• H04W72/1268 Primary

  of uplink data flows · CPC title

• H04W56/005 Primary

  compensating for timing error by adjustment in the receiver · CPC title

• H04L5/0051

  of dedicated pilots, i.e. pilots destined for a single user or terminal · CPC title

• H04W56/0005

  synchronizing of arrival of multiple uplinks · CPC title