Method and device for remote interference management in wireless communication system

Patent metadata

Field	Value
Publication number	US-12538342-B2
Application number	US-202218059208-A
Country	US
Kind code	B2
Filing date	Nov 28, 2022
Priority date	Mar 28, 2019
Publication date	Jan 27, 2026
Grant date	Jan 27, 2026

Abstract

The present disclosure provides a method and a device for performing remote interference management. The method comprises receiving, from a victim gNB, at least one RIM-reference signal (RS); transmitting, from a distributed unit (DU) of the aggressor gNB to a central unit (CU) of the aggressor gNB, a message comprising RIM information; and determining to stop monitoring the at least one RIM-RS based on the RIM information.

First claim

What is claimed is:

1 . A method performed by an aggressor gNB in a wireless communication system, the method comprising:
transmitting, from a distributed unit (DU) of the aggressor gNB to a central unit (CU) of the aggressor gNB, a message associated with a gNB-DU configuration update procedure comprising an aggressor gNB set identification (ID) information element (IE); and transmitting, from the DU of the aggressor gNB to the CU of the aggressor gNB, a message comprising remote interference management (RIM) information, wherein the RIM information comprises status information on at least one RIM-reference signal (RS) indicating RIM-RS disappearance or RIM-RS detected, wherein the CU of the aggressor gNB hosts radio resource control (RRC) and packet data convergence protocol (PDCP) network protocol layers of the aggressor gNB, wherein the DU of the aggressor gNB hosts radio link control (RLC), medium access control (MAC), and physical (PHY) network protocol layers of the aggressor gNB, and wherein an F1 interface is an interface between the DU of the aggressor gNB and the CU of the aggressor gNB.

2 . The method of claim 1 , further comprising:
receiving, from a victim gNB, the at least one RIM-RS; and transmitting, to the victim gNB, the status information on the at least one RIM-RS.

3 . The method of claim 1 , wherein the RIM information further comprises a victim gNB set ID, and the victim gNB set ID is used to identify a group of gNBs that transmit a same RIM-RS.

4 . The method of claim 1 , wherein the RIM information further comprises information on an aggressor cell, and the information on the aggressor cell is related to at least one cell global identifier (CGI).

5 . The method of claim 2 , wherein the victim gNB stops transmitting the at least one RIM-RS based on the status information on the at least one RIM-RS.

6 . A method performed by a victim gNB in a wireless communication system, the method comprising:
transmitting, from a distributed unit (DU) of the victim gNB to a central unit (CU) of the victim gNB, a message associated with a gNB-DU configuration update procedure comprising a victim gNB set identification (ID) information element (IE); and transmitting, from the CU of the victim gNB to the DU of the victim gNB, a message comprising remote interference management (RIM) information, wherein the RIM information comprises status information on at least one RIM-reference signal (RS) indicating RIM-RS disappearance or RIM-RS detected, wherein the CU of the victim gNB hosts radio resource control (RRC) and packet data convergence protocol (PDCP) network protocol layers of the victim gNB, wherein the DU of the victim gNB hosts radio link control (RLC), medium access control (MAC), and physical (PHY) network protocol layers of the victim gNB, and wherein an F1 interface is an interface between the DU of the victim gNB and the CU of the victim gNB.

7 . The method of claim 6 , further comprising:
transmitting, to an aggressor gNB, the at least one RIM-RS; and receiving, from the aggressor gNB, the status information on the at least one RIM-RS.

8 . The method of claim 6 , wherein the RIM information further comprises a victim gNB set ID, and the victim gNB set ID is used to identify a group of gNBs that transmit a same RIM-RS.

9 . The method of claim 7 , further comprising:
stopping transmitting the at least one RIM-RS based on the status information on the at least one RIM-RS.

10 . An aggressor gNB in a wireless communication system, the aggressor gNB comprising:
a transceiver; and at least one processor connected with the transceiver and configured to:
transmit, from a distributed unit (DU) of the aggressor gNB to a central unit (CU) of the aggressor gNB, a message associated with a gNB-DU configuration update procedure comprising an aggressor gNB set identification (ID) information element (IE); and
transmitting, from the DU of the aggressor gNB to the CU of the aggressor gNB, a message comprising remote interference management (RIM) information, wherein the RIM information comprises status information on at least one RIM-reference signal (RS) indicating RIM-RS disappearance or RIM-RS detected,
wherein the CU of the aggressor gNB hosts radio resource control (RRC) and packet data convergence protocol (PDCP) network protocol layers of the aggressor gNB, wherein the DU of the aggressor gNB hosts radio link control (RLC), medium access control (MAC), and physical (PHY) network protocol layers of the aggressor gNB, and wherein an F1 interface is an interface between the DU of the aggressor gNB and the CU of the aggressor gNB.

11 . The aggressor gNB of claim 10 , wherein the at least one processor is further configured to:
receive, from a victim gNB, the at least one RIM-RS; and transmit, to the victim gNB, the status information on the at least one RIM-RS.

12 . The aggressor gNB of claim 10 , wherein the RIM information further comprises a victim gNB set ID, and the victim gNB set ID is used to identify a group of gNBs that transmit a same RIM-RS.

13 . The aggressor gNB of claim 10 , wherein the RIM information further comprises information on an aggressor cell, and the information on the aggressor cell is related to at least one cell global identifier (CGI).

14 . The aggressor gNB of claim 11 , wherein the victim gNB stops transmitting the at least one RIM-RS based on the status information on the at least one RIM-RS.

15 . A victim gNB in a wireless communication system, the victim gNB comprising:
a transceiver; and at least one processor connected with the transceiver and configured to:
transmit, from a distributed unit (DU) of the victim gNB to a central unit (CU) of the victim gNB, a message associated with a gNB-DU configuration update procedure comprising a victim gNB set identification (ID) information element (IE); and
transmitting, from the CU of the victim gNB to the DU of the victim gNB, a message comprising remote interference management (RIM) information, wherein the RIM information comprises status information on at least one RIM-reference signal (RS) indicating RIM-RS disappearance or RIM-RS detected,
wherein the CU of the victim gNB hosts radio resource control (RRC) and packet data convergence protocol (PDCP) network protocol layers of the victim gNB, wherein the DU of the victim gNB hosts radio link control (RLC), medium access control (MAC), and physical (PHY) network protocol layers of the victim gNB, and wherein an F1 interface is an interface between the DU of the victim gNB and the CU of the victim gNB.

16 . The victim gNB of claim 15 , wherein the at least one processor is further configured to:
transmit, to an aggressor gNB, the at least one RIM-RS; and receive, from the aggressor gNB, the status information on the at least one RIM-RS.

17 . The victim gNB of claim 15 , wherein the RIM information further comprises a victim gNB set ID, and the victim gNB set ID is used to identify a group of gNBs that transmit a same RIM-RS.

18 . The victim gNB of claim 16 , wherein the at least one processor is further configured to stop transmitting the at least one RIM-RS based on the status information on the at least one RIM-RS.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Li Fuyuan
• Wang Hong
• Wang Weiwei
• Xu Lixiang

Classifications

• H04L5/0048 Primary

  Allocation of pilot signals, i.e. of signals known to the receiver (allocation of control signalling H04L5/0053; use of control signalling H04L5/0091) · CPC title

• H04W72/541 Primary

  using the level of interference · CPC title

• H04W72/27

  between access points · CPC title

• H04W28/16

  Central resource management; Negotiation of resources or communication parameters, e.g. negotiating bandwidth or QoS [Quality of Service] · CPC title

• H04W24/10 Primary

  Scheduling measurement reports {; Arrangements for measurement reports} · CPC title