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A submission of comment resolutions for specific CIDs received in LB291 on TGbn Draft 1.0 that proposes changes to define PPDU end time alignment and related procedures for roaming NSTR link pairs.
Document type:
Comment resolution submission
Standard:
IEEE P802.11 (Wireless LANs)
Working group:
TGbn
Ballot:
Letter Ballot 291 (LB291)
Draft baseline:
TGbn Draft 1.2
Date:
December 23, 2025
Authors:
Pei Zhou
Affiliation:
TCL
Document revision history:
Rev 0 (Initial version), Rev 1 (Revised after offline discussion with Ryuichi)
Subject:
Roaming NSTR link pair interference and PPDU end time alignment procedures
Related CIDs:
4685, 4815, 5604, 5611
Target clause(s):
37.16, 37.16.1, 37.16.5.2, 37.16.9
Referenced editor note:
11-25/2250r1 (tagged as 4685, 4815, 5604, 5611)
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Year:
2020
Region / City:
Global
Theme:
5G Roaming, Network Interconnection, Mobile Networks
Document Type:
Technical Guidelines
Organization / Institution:
GSM Association
Author:
GSM Association
Target Audience:
Network engineers, telecom operators
Period of Action:
Ongoing
Approval Date:
28 May 2020
Date of Changes:
Not specified
Year:
2025
Region / City:
N/A
Topic:
Wireless networking, roaming, security
Document Type:
Technical Specification
Organization / Institution:
IEEE
Author:
Binita Gupta, Brian Hart, Peshal Nayak
Target Audience:
Technical professionals, network engineers
Period of validity:
N/A
Approval Date:
December 12, 2025
Date of Changes:
N/A
Contextual Description:
Proposal for defining an urgent roaming solution for SMD CIDs in wireless networking, focusing on seamless roaming procedures through target AP MLDs.
Year:
2025
Region / City:
N/A
Topic:
Wireless LAN, Seamless Roaming, EPCS
Document Type:
Technical Submission
Organization / Institution:
IEEE
Author:
Peshal Nayak, Bilal Sadiq, Vishnu Ratnam, Rubayet Shafin, Yue Qi, Shouvik Ganguly, Boon Loong Ng
Target Audience:
Technical experts in networking and wireless communication
Period of Action:
N/A
Approval Date:
December 15, 2025
Revision Date:
N/A
Year:
2025
Note:
Region / City
Theme:
Wireless LANs, Seamless Roaming, MAC
Document Type:
Proposed Draft Text (PDT)
Organization / Institution:
IEEE
Author:
Duncan Ho, Thomas Derham, Liwen Chu, Xiangxin Gu, Xiandong Dong, Tuncer Baykas, Gaurav Patwardhan, Ning Gao, Pei Zhou, Frank Hsu, Xuwen Zhao, Juseong Moon, Ronny Yongho Kim, John Wullert, Manasi Ekkundi, Jarkko Kneckt, Pooya Monajemi, Chitto Ghosh, Insun Jang, SunHee Baek, Ryuichi Hirata, Thomas Handte, Liangxiao Xin, Liuming Lu, Arik Klein, Zisheng Wang, Prabodh Varshney, Liubogoshchev, Yun Li, Abhishek Chaturvedi, Hang Yang, Alfred Asterjadhi, Subir Das, Abhishek Patil, Peshal Nayak, Rubayet Shafin, Zhenpeng Shi, Massinissa Lalam, Julien Sevin, Yuki Fujimori, Haorui Yang, Tomo Adachi, Kyosuke Inoue, Stephane Baron, Brian Hart, Yu Hsien Chang, Lei Zhou, Gabor Bajko, Lili Hervieu, Hanqing Lou, Jeongki Kim, Kosuke Aio, Giovanni Chisci, Binita Gupta, Guogang Huang, Po-Kai Huang, Mike Montemurro, Jay Yang, Yelin Yoon, Nima Namvar, Ross Jian Yu, Shawn Kim, Yue Zhao, Sungjin Park, Xiaofei Wang, Fangxin Xu, Yunpeng Yang, Shuang Fan
Year:
2025
Region / City:
San Diego, CA
Topic:
Wireless LAN, Seamless Roaming
Document Type:
Draft Text
Organization:
IEEE
Authors:
Duncan Ho, Liwen Chu, Xiangxin Gu, Xiandong Dong, Tuncer Baykas, Gaurav Patwardhan, Ning Gao, Pei Zhou, Frank Hsu, Xuwen Zhao, Juseong Moon, Ronny Yongho Kim, John Wullert, Manasi Ekkundi, Jarkko Kneckt, Pooya Monajemi, Chitto Ghosh, Insun Jang, Fangxin Xu, SunHee Baek, Ryuichi Hirata, Thomas Handte, Liangxiao Xin, Liuming Lu, Yunpeng Yang, Arik Klein, Zisheng Wang, Prabodh Varshney, Liubogoshchev, Yun Li, Thomas Derham, Abhishek Chaturvedi, Hang Yang, Alfred Asterjadhi, Subir Das, Abhishek Patil, Peshal Nayak, Zhenpeng Shi, Massinissa Lalam, Julien Sevin, Yuki Fujimori, Haorui Yang, Tomo Adachi, Kyosuke Inoue, Stephane Baron, Brian Hart, Yu Hsien Chang, Rubayet Shafin, Lei Zhou, Gabor Bajko, Shuang Fan, Lili Hervieu, Hanqing Lou, Jeongki Kim, Kosuke Aio, Giovanni Chisci, Binita Gupta, Guogang Huang, Po-Kai Huang, Mike Montemurro, Peshal Nayak, Jay Yang, Yelin Yoon, Nima Namvar, Ross Jian Yu, Shawn Kim, Yue Zhao, Sungjin Park, Xiaofei Wang
Target Audience:
Networking professionals, IEEE 802.11 standards participants
Approval Date:
March 2025
Amendment Period:
2025-2026
Change Date:
N/A
Year:
2025
Region / City:
San Diego, CA
Subject:
Seamless Roaming, IEEE 802.11
Document Type:
Draft
Organization:
IEEE
Author:
Duncan Ho, Liwen Chu, Xiangxin Gu, Xiandong Dong, Tuncer Baykas, Gaurav Patwardhan, Ning Gao, Pei Zhou, Frank Hsu, Xuwen Zhao, Juseong Moon, Ronny Yongho Kim, John Wullert, Manasi Ekkundi, Jarkko Kneckt, Pooya Monajemi, Insun Jang, Fangxin Xu, SunHee Baek, Ryuichi Hirata, Thomas Handte, Liangxiao Xin, Liuming Lu, Yunpeng Yang, Arik Klein, Zisheng Wang, Prabodh Varshney, Liubogoshchev, Yun Li, Thomas Derham, Abhishek Chaturvedi, Hang Yang, Alfred Asterjadhi, Subir Das, Abhishek Patil, Peshal Nayak, Zhenpeng Shi, Massinissa Lalam, Julien Sevin, Yuki Fujimori, Haorui Yang, Tomo Adachi, Kyosuke Inoue, Stephane Baron, Brian Hart, Yu Hsien Chang, Rubayet Shafin, Lei Zhou, Gabor Bajko, Shuang Fan, Lili Hervieu, Hanqing Lou, Jeongki Kim, Kosuke Aio, Giovanni Chisci, Binita Gupta, Guogang Huang, Po-Kai Huang, Mike Montemurro, Peshal Nayak, Jay Yang, Yelin Yoon, Nima Namvar, Ross Jian Yu, Shawn Kim, Yue Zhao, Sungjin Park, Xiaofei Wang
Target Audience:
IEEE 802.11 participants, wireless network engineers, researchers
Effective Period:
January 2025
Approval Date:
January 2025
Modification Date:
January 2025
Year:
2021
Region / City:
N/A
Topic:
5G Registration
Document Type:
Change Request
Organization / Institution:
3GPP
Author:
Huawei, HiSilicon
Target Audience:
Technical Working Groups
Period of Action:
N/A
Approval Date:
2021-09-27
Change Date:
N/A
Reason for Change:
In legacy system, NW needs to differentiate between initial and mobility registration during disaster roaming
Affected Clauses:
5.5.1.2.1, 5.5.1.3.2, 9.11.3.7
Category:
B
Release:
Rel-17
Work Item Code:
MINT
Summary of Change:
Addition of a new registration type for differentiating disaster roaming initial registration and mobility registration
Test Specifications Affected:
N/A
O&M Specifications Affected:
N/A
Context:
Technical document detailing a change request for a new registration type for disaster roaming services in 5G systems.
Year:
2026
Region / City:
Goa, India
Topic:
Roaming Service Access Authorization
Document Type:
Change Request
Organization:
3GPP
Author:
Ericsson, Nokia, BSI (DE)
Target Audience:
3GPP technical groups, telecom industry professionals
Period of Validity:
From Release-19 onward
Approval Date:
2026-02-12
Revision History:
CR-Form-v12.1, Revision 1
Category:
F (correction)
Release:
Rel-19
Year:
2026
Date:
2026-02-02
Meeting:
3GPP TSG-SA3 Meeting #126
Location:
Goa, India
Specification:
3GPP TS 33.501
Related specification:
3GPP TS 29.510
Change Request:
CR 2214
Revision:
-
Current version:
20.0.0
Release:
Rel-20
Category:
F (correction)
Work item code:
TEI20
Source organizations:
Ericsson; Nokia; BSI (DE)
Working Group:
SA3
Technical domain:
5G security architecture and authorization
Affected clauses:
13.4.1.2.2; 14.3.2
Network components involved:
Core Network; NF Service Consumer; NF Service Producer; NRF; SEPP
Protocol context:
OAuth2.0 access token handling in roaming scenarios
Purpose of change:
Alignment of PLMN ID handling in access token claims with TS 29.510
Potential impact if not approved:
Interoperability issues between specifications
Year:
2022
Note:
Region / City
Topic:
5G Charging, Roaming
Document Type:
Technical Report
Organization:
3GPP
Author:
Ericsson
Target Audience:
MNOs, MVNOs, Telecommunication Industry Professionals
Action Date:
2022-08-15 to 2022-08-24
Date of Changes:
2022-08-24
Agenda Item:
7.5.31
Decision/Action Requested:
Include the proposed changes in TR 28.827.2
References:
3GPP TR 28.827
Year:
2026
Location:
Goa, India
Subject:
5GA roaming charging optimization
Document Type:
Meeting contribution / Technical report
Organization:
3GPP TSG SA5
Author:
Nokia
Agenda Item:
7.5.2
Specification:
3GPP TR 32.872
Version:
0.2.0
Work Item:
FS_RoamRE_CH
Target Audience:
3GPP SA5 delegates
Period:
9-13 February 2026
Purpose:
Identification of gaps and proposals for enhancements in charging data logging mechanisms
Year:
2026
Note:
Region / city
Subject:
Wireless LANs, UHR Operation
Document type:
Technical Submission
Organization / institution:
IEEE
Author:
Ming Gan, Jason Yuchen Guo, Yunbo Li, Guogang Huang, Lan Peng, Zhenguo Du, Steven Qi Wang, Yue Zhao, Zhenpeng Shi, Maolin Zhang
Contextual description:
Technical submission outlining editorial resolutions for comments on TGbn LB291 related to UHR operation elements in the IEEE 802.11 standard draft.
Year:
2026
Note:
Region / City
Topic:
Wireless LANs, NPCA Transmission Deferral
Document Type:
IEEE Draft
Organization / Institution:
IEEE
Author:
Rony Ross, Arik Klein
Target Audience:
Technical experts, engineers in wireless communication
Approval Date:
2026-01-22
Context:
The document provides proposed resolutions for specific issues in the IEEE P802.11 Wireless LANs regarding the deferral of transmissions due to NPCA switching delays, offering solutions for multiple CIDs.
Year:
2026
Region / City:
N/A
Topic:
Wireless LAN, NPCA primitives, IEEE 802.11
Document Type:
Draft Submission
Organization / Institution:
IEEE
Author:
Shawn Sanghyun Kim, Kiseon Ryu, Hank Hyeonjun Sung, John Juhyung Son, Jin Sam Kwak, Greg Geonjung Ko, Woojin Ahn, Ronny Yongho Kim, Juseong Moon
Target Audience:
IEEE 802.11 working group members, network engineers
Period of Validity:
N/A
Approval Date:
N/A
Modification Date:
N/A
Date:
2026-01-07
Note:
Author(s)
CID:
9409
Clause:
37.15.2.1.4
Page.line:
225.25
Proposed Change:
Define a mechanism for allowing the use of the CO-BF invite/response/trigger frame to negotiate GI
Resolution:
Revised
Discussion:
Allowing Additional Negotiation of GI Durations Between Co-BF APs during Co-BF Transmission Procedure
Period of validity:
Not specified
Date of approval:
2026-01-07
Date of changes:
Not specified
Year:
2025
Region / city:
San Jose, CA
Topic:
Wireless Networking
Document Type:
Technical Specification
Organization / Institution:
IEEE
Author:
You-Wei Chen, Insik Jung, Arik Klein
Target Audience:
Researchers and engineers working in wireless communication standards
Effective Period:
Not specified
Approval Date:
Not specified
Modification Date:
Not specified
Year:
2025
Note:
Region / City
Topic:
Wireless LAN, IEEE 802.11, data field, editorial comments
Document Type:
Editorial Comments
Organization / Institution:
IEEE
Author:
Chenchen Liu
Target Audience:
Members of IEEE P802.11 working group
Year:
2025
Note:
Region / city
Topic:
Wireless LAN, CoSR PHY
Document type:
Technical submission
Institution:
IEEE
Author:
Genadiy Tsodik
Target audience:
Professionals in wireless networking and IEEE standards
Approval date:
Nov 30, 2025
Year:
2026
Note:
Region / City
Subject:
Wireless LANs, UHR BSS Operation
Document Type:
Technical Report
Institution:
IEEE
Author:
Ming Gan, Jason Yuchen Guo, Yunbo Li, Guogang Huang, Lan Peng, Zhenguo Du, Steven Qi Wang, Yue Zhao, Zhenpeng Shi, Maolin Zhang
Target Audience:
Technical experts in wireless networking and IEEE 802.11 standards
Approval Date:
2026-01-05
Contextual Description:
Technical report detailing resolutions to comments on TGbn LB291 based on IEEE 802.11bn draft D1.0, including editorial instructions for merging changes into the draft.
Year:
2026
Note:
Region / city
Author:
Ming Gan, Jason Yuchen Guo, Yunbo Li, Guogang Huang, Lan Peng, Zhenguo Du, Steven Qi Wang, Yue Zhao, Zhenpeng Shi, Maolin Zhang
Approval date:
2026-01-05
Context:
A technical document that provides resolutions for comments received from TGbn LB291 comments based on TGbn D1.0, detailing proposed changes to the UHR capabilities in IEEE 802.11 standards.