Method and apparatus for indicating energy saving mode of base station in wireless communication system

Patent metadata

Field	Value
Publication number	US-12526741-B2
Application number	US-202318363925-A
Country	US
Kind code	B2
Filing date	Aug 2, 2023
Priority date	Aug 2, 2022
Publication date	Jan 13, 2026
Grant date	Jan 13, 2026

Abstract

A method, performed by a BS, in a wireless communication system is provided. The method includes transmitting, to a UE, information of an energy saving mode, identifying an operation start point of the energy saving mode, and converting to the energy saving mode, based on the operation start point of the energy saving mode.

First claim

What is claimed is:

1 . A method performed by a user equipment (UE) in a wireless communication system, the method comprising:
receiving, from a base station (BS), a downlink control information (DCI) format with a cyclic redundancy check (CRC) scrambled by a radio network temporary identifier (RNTI) configured for discontinuous transmission and reception (DTRX); identifying a network saving mode indicator field in the DCI format; and activating or deactivating at least one of a discontinuous transmission (DTX) operation or a discontinuous reception (DRX) operation based on the network saving mode indicator field.

2 . The method of claim 1 , wherein in case that a value of a bit in the network saving mode indicator field is 0, the DTX operation or the DRX operation is deactivated, and
wherein in case that the value of the bit in the network saving mode indicator field is 1, the DTX operation or the DRX operation is activated.

3 . The method of claim 1 , wherein the network saving mode indicator field includes a first bit for indicating activation or deactivation of the DTX operation and a second bit for indicating activation or deactivation of the DRX operation.

4 . The method of claim 1 , wherein the DCI format is received in a slot m, and a time offset K3 is configured, and
wherein in case of activating, the DTX operation or the DRX operation is not started before a beginning of a slot m+K3.

5 . The method of claim 1 , further comprising receiving a parameter indicating a size of the DCI format via higher layer signaling.

6 . A method performed by a base station (BS) in a wireless communication system, the method comprising:
transmitting, to a user equipment (UE), a downlink control information (DCI) format with a cyclic redundancy check (CRC) scrambled by a radio network temporary identifier (RNTI) configured for discontinuous transmission and reception (DTRX); and activating or deactivating at least one of a discontinuous transmission (DTX) operation or a discontinuous reception (DRX) operation based on a network saving mode indicator field.

7 . The method of claim 6 , wherein in case that a value of a bit in the network saving mode indicator field is 0, the DTX operation or the DRX operation is deactivated, and
wherein in case that the value of the bit in the network saving mode indicator field is 1, the DTX operation or the DRX operation is activated.

8 . The method of claim 6 , wherein the network saving mode indicator field includes a first bit for indicating activation or deactivation of the DTX operation and a second bit for indicating activation or deactivation of the DRX operation.

9 . The method of claim 6 , wherein the DCI format is received at the UE in a slot m, and a time offset K3 is configured, and
wherein in case of activating, the DTX operation or the DRX operation is not started before a beginning of a slot m+K3.

10 . The method of claim 6 , further comprising transmitting a parameter indicating a size of the DCI format via higher layer signaling.

11 . A user equipment (UE) in a wireless communication system, the UE comprising:
a transceiver; and at least one processor coupled with the transceiver and configured to:
receive, from a base station (BS), a downlink control information (DCI) format with a cyclic redundancy check (CRC) scrambled by a radio network temporary identifier (RNTI) configured for discontinuous transmission and reception (DTRX),
identify a network saving mode indicator field in the DCI format, and
activate or deactivate at least one of a discontinuous transmission (DTX) operation or a discontinuous reception (DRX) operation based on the network saving mode indicator field.

12 . The UE of claim 11 , wherein in case that a value of a bit in the network saving mode indicator field is 0, the DTX operation or the DRX operation is deactivated, and
wherein in case that the value of the bit in the network saving mode indicator field is 1, the DTX operation or the DRX operation is activated.

13 . The UE of claim 11 , wherein the network saving mode indicator field includes a first bit for indicating activation or deactivation of the DTX operation and a second bit for indicating activation or deactivation of the DRX operation.

14 . The UE of claim 11 , wherein the DCI format is received in a slot m, and a time offset K3 is configured, and
wherein in case of activating, the DTX operation or the DRX operation is not started before a beginning of a slot m+K3.

15 . The UE of claim 11 , wherein the at least one processor is further configured to receive a parameter indicating a size of the DCI format via higher layer signaling.

16 . A base station (BS) in a wireless communication system, the BS comprising:
a transceiver; and at least one processor coupled with the transceiver and configured to:
transmit, to a user equipment (UE), a downlink control information (DCI) format with a cyclic redundancy check (CRC) scrambled by a radio network temporary identifier (RNTI) configured for discontinuous transmission and reception (DTRX), and
activate or deactivate at least one of a discontinuous transmission (DTX) operation or a discontinuous reception (DRX) operation based on a network saving mode indicator field.

17 . The BS of claim 16 , wherein in case that a value of a bit in the network saving mode indicator field is 0, the DTX operation or the DRX operation is deactivated and
wherein in case that the value of the bit in the network saving mode indicator field is 1, the DTX operation or the DRX operation is activated.

18 . The BS of claim 16 , wherein the network saving mode indicator field includes a first bit for indicating activation or deactivation of the DTX operation and a second bit for indicating activation or deactivation of the DRX operation.

19 . The BS of claim 16 , wherein the DCI format is received at the UE in a slot m, and a time offset K3 is configured, and
wherein in case of activating, the DTX operation or the DRX operation is not started before a beginning of a slot m+K3.

20 . The BS of claim 16 , wherein the at least one processor is further configured to transmit a parameter indicating a size of the DCI format via higher layer signaling.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Lee Jaewon
• Kim Youngbum
• Yi Junyung
• Park Kyoungmin
• Park Sungjin
• Choi Seunghoon

Classifications

• H04W52/0235

  where the received signal is a power saving command · CPC title

• H04W52/0229

  where the received signal is a wanted signal · CPC title

• H04W52/0216

  using a pre-established activity schedule, e.g. traffic indication frame · CPC title

• Y02D30/70

  in wireless communication networks · CPC title

• H04W52/0206 Primary

  in access points, e.g. base stations · CPC title