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Technical standardization contribution outlining proposed RAN–CN signaling procedures and message flows for gNB-based sensing operations in Integrated Sensing and Communication systems within the 3GPP study of TR 38.765.
Year:
2026
Location:
Goteborg, Sweden
Event:
3GPP TSG-RAN WG3 Meeting #131
Agenda item:
13.3
Title of contribution:
(TP for pCR) RAN-CN procedures and signaling for ISAC
Organizations:
Ericsson; China Telecom; Huawei
Standardization body:
3GPP TSG-RAN WG3
Document type:
Technical contribution
Technical domain:
5G radio access network signaling and procedures
Topic:
RAN-CN procedures and signaling for Integrated Sensing and Communication (ISAC)
Related specification:
TR 38.765
Referenced documents:
TR 21.905; TR 23.700-14
Network element:
gNB
Functions described:
Sensing Initiation; Sensing Abort; Sensing Modification; Sensing Failure Indication; Sensing Information Transfer
Protocol:
Nx-AP
Key identifier:
Sensing Measurement ID
Procedure classes:
Class 1 procedure; Class 2 procedure
Status:
Technical proposal with editor’s notes and items for further study (FFS)
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Year:
2025
Region / city:
Dallas, US
Topic:
6G RAN-CN interface options
Document type:
Technical Proposal
Organization / Institution:
ZTE Corporation
Target audience:
RAN3 participants, network engineers
Approval date:
TBD
Date of change:
17-21 November, 2025
Year:
2026
Region / City:
Goteborg, Sweden
Topic:
6G RAN-CN SBI options
Document Type:
Technical Proposal
Organization:
ZTE Corporation
Author:
ZTE Corporation
Target Audience:
RAN3 participants, 6G researchers, standardization bodies
Approval Date:
2026-02-09
Modification Date:
N/A
Year:
2026
Region / City:
Gothenburg, Sweden
Topic:
6G RAN-CN Interface Principles and Functions
Document Type:
Technical Contribution
Organization / Institution:
Huawei
Author:
Huawei
Target Audience:
3GPP TSG-RAN WG3 Members
Effective Period:
2026
Approval Date:
2026
Modification Date:
Not specified
Agenda Item:
10.3.1
pCR Reference:
pCR1
Document for:
3GPP TSG-RAN WG3 Meeting #131
Date of Meeting:
09th ~ 13th Feb, 2026
Year:
2026
Region / City:
Gothenburg, Sweden
Topic:
6G RAN-CN interface evolution
Document Type:
pCR1
Organization:
FiberCop
Author:
xxx
Target Audience:
RAN3 members
Period of Validity:
N/A
Approval Date:
N/A
Modification Date:
N/A
Year:
2026
Region / City:
Goteborg, Sweden
Topic:
6G RAN-CN SBI options
Document Type:
Meeting Document
Organization:
3GPP TSG-RAN3
Author:
ZTE Corporation
Target Audience:
Technical stakeholders in 6G RAN-CN development
Approval Date:
9th Feb 2026
Amendment Date:
Not specified
Period of Validity:
Not specified
Agenda Item:
10.3.2.2
Year:
2026
Region / city:
Goteborg, Sweden
Topic:
Sensing procedures and signaling
Document type:
Technical paper
Author:
Ericsson, China Telecom, Huawei, LG Electronics, Xiaomi
Target audience:
Other
Period of validity:
2026-02-09 to 2026-02-13
Approval date:
N/A
Date of changes:
N/A
Year:
2026
Region / City:
Goteborg, Sweden
Theme:
Telecommunications
Document Type:
Technical Paper (TP)
Author:
Ericsson, China Telecom, Huawei, LG Electronics, Xiaomi, Nokia, NEC, OPPO, CATT, KPN
Target Audience:
Industry professionals in telecommunications
Approval Date:
2026-02-09
Modification Date:
2026-02-13
Period of Validity:
2026-02-09 to 2026-02-13
Note:
Contextual Description
Year:
2026
Meeting:
3GPP TSG-RAN WG3 Meeting #131
Location:
Goteborg, Sweden
Meeting Date:
9–13 February 2026
Agenda Item:
13.3
Title:
(TP for pCR) RAN-CN procedures and signaling for ISAC
Document Number:
R3-260732
Source:
Ericsson, China Telecom, Huawei, LG Electronics, Xiaomi, Nokia, NEC, OPPO, CATT, KPN
Organization:
3GPP TSG-RAN WG3
Technical Domain:
Integrated Sensing and Communication (ISAC) in 5G RAN
Document Type:
Technical Proposal (TP) for proposed Change Request to TR 38.765
Network Components:
RAN, CN, gNB, Sensing Function (SF), TRP
Protocol:
Nx-AP
Scope:
Procedures and signaling for sensing information transfer between RAN and CN
Defined Identifiers:
Sensing Measurement ID
Procedures Described:
Sensing Initiation, Sensing Abort, Sensing Modification, Sensing Failure Indication
Referenced Specifications:
TR 21.905, TR 23.700-14, TR 38.765
Year:
2026
Location:
Gothenburg, Sweden
Subject:
6G RAN-CN Point to Point Interface
Document Type:
Technical Discussion Paper
Organization:
3GPP TSG-RAN WG3
Author:
Lenovo
Audience:
3GPP working group members
Meeting Number:
131
Agenda Item:
10.3.2.1
References:
TR 38.760-3
Protocol Options:
SCTP, QUIC/UDP
Security Considerations:
TLS 1.3, DTLS, IPSec
Connection Mechanisms:
4-way handshake, 0-RTT/1-RTT handshake
Data Transmission Scope:
Control Plane and general data transmission
Year:
2026
Location:
Gothenburg, Sweden
Topic:
6G RAN-CN Point to Point Interface
Document Type:
Technical Meeting Document
Organization:
3GPP TSG-RAN WG3
Author:
Lenovo
Audience:
3GPP Working Group Members
Agenda Item:
10.3.2.1
Protocol Options:
SCTP, QUIC/UDP
Annex:
pCR to TR 38.760-3
Date of Meeting:
9-13 February 2026
Year:
2025
Region / City:
Dallas, US
Topic:
6G RAN-CN Interface Options
Document Type:
Technical Paper
Organization:
ZTE Corporation
Author:
ZTE Corporation
Target Audience:
3GPP TSG-RAN WG3 Members
Approval Date:
2025-11-17
Document Approval Status:
Approved
Year:
2026
Location:
Gothenburg, Sweden
Subject:
6G RAN-CN interface and Service Based Interface (SBI)
Document Type:
pCR1
Organization:
3GPP TSG-RAN WG3
Author:
FiberCop
Agenda Item:
10.3.2.2
Meeting:
#131
Period:
9–13 February 2026
Technical Focus:
Service identification, exposure, discovery, and protocol options for 6G SBI
Summary:
Technical report capturing discussions and proposals on the evolution of the RAN-CN interface towards a service-based interface (SBI) for 6G, including service mechanisms and potential protocol stacks.
Year:
2026
Region / City:
Goteborg, Sweden
Topic:
6G RAN-CN SBI options
Document Type:
Meeting Agenda
Organization:
3GPP TSG-RAN3
Author:
ZTE Corporation
Target Audience:
RAN3 participants and decision-makers
Period of Effect:
9th Feb 2026 - 17th Feb 2026
Approval Date:
Pending
Modification Date:
Pending
Year:
2026
Location:
Gothenburg, Sweden
Subject:
6G RAN-CN interface design
Document type:
Technical contribution
Organization:
3GPP TSG-RAN WG3
Author:
Huawei
Target audience:
pCR1 group within 3GPP
Agenda item:
10.3.1
References:
R3-258119, R3-258447, R3-258543, R3-258160, R3-258136, R3-258145, R3-258235, R3-258283, R3-258287, R3-258362, R3-258399, R3-258421, R3-258426, R3-258544, R3-258572, R3-258581
Period covered:
February 2026 meeting
Proposals:
RAN-CN interface principles and functions based on 5G starting points
Year:
2026
Region / City:
Gothenburg, Sweden
Topic:
RAN-CN P2P Interface
Document Type:
Technical Report
Organization:
3GPP TSG-RAN WG3
Author:
Lenovo
Target Audience:
Technical experts in 6G network protocols
Period of Validity:
Ongoing
Approval Date:
Not specified
Date of Changes:
Not specified
Year:
2026
Region / city:
Goa, India
Topic:
ISAC KPI categorization
Document type:
Meeting document
Organization / institution:
Nokia
Author:
Hideaki Takahashi
Target audience:
3GPP TSG SA WG 1 members
Period of validity:
February 2026
Date of approval:
February 2026
Date of changes:
Not specified
Year:
2026
Region / city:
Goa, India
Subject:
ISAC KPI categorization
Document type:
Meeting document
Organization:
3GPP TSG SA WG 1
Author:
Nokia (ISAC KPI moderator)
Target audience:
3GPP participants
Period of validity:
February 2026
Approval date:
Pending
Date of revisions:
Not specified
Year:
2024
Region / city:
Changsha, China
Topic:
ISAC channel modeling
Document type:
Meeting summary
Organization:
3GPP TSG RAN WG1
Author:
Moderator (Xiaomi)
Target audience:
Participants of 3GPP TSG RAN WG1 meetings
Period of validity:
2024
Approval date:
April 15th, 2024
Revision date:
April 19th, 2024
Year:
2025
Region / City:
Wuhan, China
Subject:
ISAC Channel Model Calibration
Document Type:
Discussion and Decision Summary
Organization:
3GPP TSG RAN WG1
Author:
Moderator (AT&T)
Target Audience:
Industry professionals and companies interested in ISAC channel modeling
Period of Validity:
N/A
Approval Date:
N/A
Amendment Date:
N/A
Year:
2025
Region / City:
Athens, Greece
Subject:
Integrated Sensing And Communication (ISAC) channel modelling
Document Type:
Discussion and Decision
Organization / Institution:
3GPP TSG RAN WG1
Author:
Moderator (AT&T)
Target Audience:
Industry professionals and stakeholders in ISAC development
Period of Validity:
February 17th – 21st, 2025
Approval Date:
February 17th, 2025
Date of Amendments:
N/A