Communication method and apparatus for reduced-capability UE in wireless communication system

Patent metadata

Field	Value
Publication number	US-12501384-B2
Application number	US-202318095274-A
Country	US
Kind code	B2
Filing date	Jan 10, 2023
Priority date	Jan 11, 2022
Publication date	Dec 16, 2025
Grant date	Dec 16, 2025

Abstract

The disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. The disclosure relates to an operation of a RedCap UE and a base station in a wireless communication system. More specifically, the disclosure relates to an operation method of a RedCap UE considering a switching gap and an apparatus for performing the same. A method performed by a terminal in a communication system includes receiving, from a base station, information indicating positions of SS/PBCH blocks, identifying the positions of the SS/PBCH blocks based on the information, receiving, from the base station, configuration information on PUSCH repetition, identifying available resources for the PUSCH repetition by determining resources overlapped with the positions of the SS/PBCH blocks and switching intervals for the SS/PBCH blocks as unavailable resources for the PUSCH repetition, and repeatedly transmitting, to the base station, UL data on a PUSCH based on the available resources.

First claim

What is claimed is:

1 . A method performed by a terminal in a communication system, the method comprising:
receiving, from a base station, information indicating positions of synchronization signal/physical broadcast channel (SS/PBCH) blocks; identifying the positions of the SS/PBCH blocks based on the information; receiving, from the base station, configuration information on a physical uplink shared channel (PUSCH) repetition; identifying available resources for the PUSCH repetition by determining resources overlapped with the positions of the SS/PBCH blocks and switching intervals for the SS/PBCH blocks as unavailable resources for the PUSCH repetition; and repeatedly transmitting, to the base station, uplink data on a PUSCH based on the available resources.

2 . The method of claim 1 , wherein the PUSCH repetition corresponds to type A, and
wherein identifying the available resources further comprises identifying a slot, in which a time domain resource of the PUSCH repetition and the positions of the SS/PBCH blocks and switching intervals adjacent to a start symbol and a last symbol of each SS/PBCH block of the SS/PBCH blocks overlap, as an unavailable slot for the PUSCH repetition.

3 . The method of claim 2 , wherein the unavailable slot is not counted in a number of slots for the PUSCH repetition.

4 . The method of claim 1 , wherein the PUSCH repetition corresponds to type B, and
wherein identifying the available resources further comprises identifying one or more one symbols, overlapped with the positions of the SS/PBCH blocks and switching intervals adjacent to a start symbol and a last symbol of each SS/PBCH block of the SS/PBCH blocks, as one or more invalid symbols for an actual repetition.

5 . The method of claim 4 , wherein the actual repetition in 1 valid symbol, excluding the invalid symbols, is omitted.

6 . A method performed by a base station in a communication system, the method comprising:
transmitting, to a terminal, information indicating positions of synchronization signal/physical broadcast channel (SS/PBCH) blocks; transmitting, to the terminal, configuration information on a physical uplink shared channel (PUSCH) repetition; and repeatedly receiving, from the terminal, uplink data on a PUSCH based on available resources, wherein the available resources for the PUSCH repetition are based on a determination of resources overlapping with the positions of the SS/PBCH blocks and switching intervals for the SS/PBCH blocks as unavailable resources for the PUSCH repetition.

7 . The method of claim 6 , wherein the PUSCH repetition corresponds to type A, and
wherein a slot, in which a time domain resource of the PUSCH repetition and the positions of the SS/PBCH blocks and switching intervals adjacent to a start symbol and a last symbol of each SS/PBCH block of the SS/PBCH blocks overlap, is determined as an unavailable slot for the PUSCH repetition.

8 . The method of claim 7 , wherein the unavailable slot is not counted in a number of slots for the PUSCH repetition.

9 . The method of claim 6 , wherein the PUSCH repetition corresponds to type B, and
wherein one or more one symbols, overlapped with the positions of the SS/PBCH blocks and switching intervals adjacent to a start symbol and a last symbol of each SS/PBCH block of the one or more SS/PBCH blocks, are determined as one or more invalid symbols for an actual repetition.

10 . The method of claim 9 , wherein the actual repetition in 1 valid symbol, excluding the invalid symbols, is omitted.

11 . A terminal in a communication system, the terminal comprising:
a transceiver; and a controller coupled with the transceiver and configured to:
receive, from a base station, information indicating positions of synchronization signal/physical broadcast channel (SS/PBCH) blocks,
identify the positions of the SS/PBCH blocks based on the information,
receive, from the base station, configuration information on a physical uplink shared channel (PUSCH) repetition,
identify available resources for the PUSCH repetition by determining resources overlapped with the positions of the SS/PBCH blocks and switching intervals for the SS/PBCH blocks as unavailable resources for the PUSCH repetition, and
repeatedly transmit, to the base station, uplink data on a PUSCH based on the available resources.

12 . The terminal of claim 11 , wherein the PUSCH repetition corresponds to type A, and
wherein the controller is further configured to identify a slot, in which a time domain resource of the PUSCH repetition and the positions of the SS/PBCH blocks and switching intervals adjacent to a start symbol and a last symbol of each SS/PBCH block of the one or more SS/PBCH blocks overlap, as an unavailable slot for the PUSCH repetition.

13 . The terminal of claim 12 , wherein the unavailable slot is not counted in a number of slots for the PUSCH repetition.

14 . The terminal of claim 11 , wherein the PUSCH repetition corresponds to type B, and
wherein the controller is further configured to identify one or more one symbols, overlapped with the positions of the SS/PBCH blocks and switching intervals adjacent to a start symbol and a last symbol of each SS/PBCH block of the SS/PBCH blocks, as one or more invalid symbols for an actual repetition.

15 . The terminal of claim 14 , wherein the actual repetition in 1 valid symbol, excluding the invalid symbols, is omitted.

16 . A base station in a communication system, the base station comprising:
a transceiver; and a controller coupled with the transceiver and configured to:
transmit, to a terminal, information indicating positions of synchronization signal/physical broadcast channel (SS/PBCH) blocks,
transmit, to the terminal, configuration information on a physical uplink shared channel (PUSCH) repetition, and
repeatedly receive, from the terminal, uplink data on a PUSCH based on available resources,
wherein the available resources for the PUSCH repetition are based on a determination of resources overlapped with the positions of the SS/PBCH blocks and switching intervals for the SS/PBCH blocks as unavailable resources for the PUSCH repetition.

17 . The base station of claim 16 , wherein the PUSCH repetition corresponds to type A, and
wherein a slot, in which a time domain resource of the PUSCH repetition and the positions of the SS/PBCH blocks and switching intervals adjacent to a start symbol and a last symbol of each SS/PBCH block of the SS/PBCH blocks overlap, is determined as an unavailable slot for the PUSCH repetition.

18 . The base station of claim 17 , wherein the unavailable slot is not counted in a number of slots for the PUSCH repetition.

19 . The base station of claim 16 , wherein the PUSCH repetition corresponds to type B, and
wherein one or more one symbols, overlapped with the positions of the SS/PBCH blocks and switching intervals adjacent to a start symbol and a last symbol of each SS/PBCH block of the SS/PBCH blocks, are determined as one or more invalid symbols for an actual repetition.

20 . The base station of claim 19 , wherein the actual repetition in 1 valid symbol, excluding the invalid symbols, is omitted.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Choi Seunghoon
• Kim Youngbum
• Park Sungjin
• Yi Junyung

Classifications

• H04W72/1268

  of uplink data flows · CPC title

• H04L1/08

  by repeating transmission, e.g. Verdan system {(H04L1/1858 and H04L1/189 take precedence)} · CPC title

• H04W48/10

  using broadcasted information · CPC title

• H04W72/0446

  Resources in time domain, e.g. slots or frames · CPC title

• H04W72/51

  based on terminal or device properties · CPC title