Inter-network-node cross-link interference for terrestrial network and non-terrestrial network coexistence

Patent metadata

Field	Value
Publication number	US-2025357997-A1
Application number	US-202418664813-A
Country	US
Kind code	A1
Filing date	May 15, 2024
Priority date	May 15, 2024
Publication date	Nov 20, 2025
Grant date	—

Abstract

Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first network node may establish an active session between the first network node and a server, wherein the first network node is associated with a terrestrial network (TN). The first network node may receive, during the active session, assistance information from the server, wherein the assistance information includes dynamic information of a second network node associated with a non-terrestrial network (NTN). The first network node may perform an action based at least in part on the assistance information. Numerous other aspects are described.

First claim

What is claimed is:

1 . An apparatus for wireless communication at a first network node, comprising:
one or more memories; and one or more processors, coupled to the one or more memories, individually or collectively configured to cause the first network node to:
establish an active session between the first network node and a server, wherein the first network node is associated with a terrestrial network (TN);
receive, during the active session, assistance information from the server, wherein the assistance information includes dynamic information of a second network node associated with a non-terrestrial network (NTN); and
perform an action based at least in part on the assistance information.

2 . The apparatus of claim 1 , wherein the first network node and the second network node are associated with TN-NTN spectrum sharing, the first network node is associated with a first public land mobile network (PLMN), and the second network node is associated with a second PLMN.

3 . The apparatus of claim 1 , wherein the first network node is a TN node and the second network node is an NTN node.

4 . The apparatus of claim 1 , wherein the assistance information is cross-link interference (CLI) assistance information, and the one or more processors, to perform the action, are individually or collectively configured to cause the first network node to:
measure, based at least in part on the CLI assistance information, an inter-network-node CLI between the first network node and the second network node, wherein the first network node is a victim network node and the second network node is an aggressor network node; and perform an inter-network-node CLI mitigation.

5 . The apparatus of claim 4 , wherein the CLI assistance information includes dynamic information that accounts for a mobility of the second network node, and the CLI assistance information is updated during the active session.

6 . The apparatus of claim 4 , wherein the one or more processors are individually or collectively configured to cause the first network node to:
transmit, to the server, a request for the CLI assistance information, wherein the request indicates frequency band information, wherein the CLI assistance information is received based at least in part on the request, and wherein the CLI assistance information is filtered based at least in part on the frequency band information.

7 . The apparatus of claim 6 , wherein the request indicates one or more of:
a first network node identifier, a second network node identifier, a tracking area identifier, a timeframe for which the CLI assistance information is to be provided, frequency band information, or sounding reference signal (SRS) resource set information.

8 . The apparatus of claim 4 , wherein the CLI assistance information indicates one or more of:
a second network node identifier, ephemeris information, beam pattern information, a transmit power, a frequency band, cell data transmission information, cell-satellite association information, a satellite guard time, information associated with detecting a synchronization signal block of the second network node, a channel state information reference signal resource configuration, a tracking reference signal (TRS) resource configuration, a bandwidth, or a sounding reference signal (SRS) resource set.

9 . The apparatus of claim 8 , wherein the cell-satellite association information is associated with the second network node, and the cell-satellite association information includes one or more of: a New Radio cell identifier, a beam location on Earth, a satellite identifier, a service start time, a service end time, frequency band information, or a physical cell identifier.

10 . The apparatus of claim 1 , wherein the server is a logical Next Generation radio access network node or a core network node.

11 . The apparatus of claim 1 , wherein:
the server is implemented within an access and mobility management function (AMF), the server is implemented within a Next Generation radio access network entity, or the server is a network function that interfaces with the AMF, wherein the first network node is configured to receive packets from the server via the AMF.

12 . A method of wireless communication performed by a first network node, comprising:
establishing an active session between the first network node and a server, wherein the first network node is associated with a terrestrial network (TN); receiving, during the active session, assistance information from the server, wherein the assistance information includes dynamic information of a second network node associated with a non-terrestrial network (NTN); and; performing an action based at least in part on the assistance information.

13 . The method of claim 12 , wherein:
the first network node and the second network node are associated with TN-NTN spectrum sharing, the first network node is associated with a first public land mobile network (PLMN) and the second network node is associated with a second PLMN, and the first network node is a victim network node and the second network node is an aggressor network node.

14 . The method of claim 12 , wherein the assistance information is cross-link interference (CLI) assistance information, and performing the action further comprises:
measuring, based at least in part on the CLI assistance information, an inter-network-node CLI between the first network node and a second network node associated with a non-terrestrial network (NTN); and performing an inter-network-node CLI mitigation.

15 . The method of claim 14 , wherein the CLI assistance information is updated during the active session, and the CLI assistance information includes dynamic information that accounts for a mobility of the second network node.

16 . The method of claim 14 , further comprising:
transmitting, to the server, a request for the CLI assistance information, wherein the request indicates frequency band information, wherein the CLI assistance information is received based at least in part on the request, and wherein the CLI assistance information is filtered based at least in part on the frequency band information.

17 . The method of claim 16 , wherein the request indicates one or more of:
a first network node identifier, a second network node identifier, a tracking area identifier, a timeframe for which the CLI assistance information is to be provided, frequency band information, or sounding reference signal (SRS) resource set information.

18 . The method of claim 14 , wherein the CLI assistance information indicates one or more of:
a second network node identifier, ephemeris information, beam pattern information, a transmit power, a frequency band, cell data transmission information, cell-satellite association information, a satellite guard time, information associated with detecting a synchronization signal block of the second network node, a channel state information reference signal resource configuration, a tracking reference signal (TRS) resource configuration, a bandwidth, or a sounding reference signal (SRS) resource set, wherein the cell-satellite association information is associated with the second network node, and the cell-satellite association information includes one or more of: a New Radio cell identifier, a beam location on Earth, a satellite identifier, a service start time, a service end time, frequency band information, or a physical cell identifier.

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Assignees

• Qualcomm Inc

Inventors

• Saha Chiranjib
• Rico Alvarino Alberto
• Wang Xiao Feng
• Chetlur Ravi Vishnu Vardhan

Classifications

• H04W24/02

  Arrangements for optimising operational condition · CPC title

• H04B17/345

  Interference values ({signal-to-interference ratio [SIR] or carrier-to-interference ratio [CIR]} H04B17/336) · CPC title

• H04W16/14

  Spectrum sharing arrangements {between different networks} · CPC title

• H04B7/18513 Primary

  Transmission in a satellite or space-based system · CPC title

• H04W24/04

  Arrangements for maintaining operational condition · CPC title