Presentation is loading. Please wait.

Presentation is loading. Please wait.

Doc.: IEEE 802.11-12/1054r0 Submission Sep. 2012 Santosh Pandey (Cisco)Slide 1 FILS Reduced Neighbor Report Date: 2012-09-07 Authors:

Published byCody Walker Modified over 8 years ago

Similar presentations

Presentation on theme: "Doc.: IEEE 802.11-12/1054r0 Submission Sep. 2012 Santosh Pandey (Cisco)Slide 1 FILS Reduced Neighbor Report Date: 2012-09-07 Authors:"— Presentation transcript:

1 doc.: IEEE 802.11-12/1054r0 Submission Sep. 2012 Santosh Pandey (Cisco)Slide 1 FILS Reduced Neighbor Report Date: 2012-09-07 Authors:

2 doc.: IEEE 802.11-12/1054r0 Submission Sep. 2012 Santosh Pandey (Cisco)Slide 2 Abstract The presentation proposes a modified neighbor report for FILS

3 doc.: IEEE 802.11-12/1054r0 Submission Sep. 2012 Santosh Pandey (Cisco)Slide 3 Conformance w/ TGai PAR & 5C Conformance QuestionResponse Does the proposal degrade the security offered by Robust Security Network Association (RSNA) already defined in 802.11? No Does the proposal change the MAC SAP interface?No Does the proposal require or introduce a change to the 802.1 architecture?No Does the proposal introduce a change in the channel access mechanism?No Does the proposal introduce a change in the PHY?No Which of the following link set-up phases is addressed by the proposal? (1) AP Discovery (2) Network Discovery (3) Link (re-)establishment / exchange of security related messages (4) Higher layer aspects, e.g. IP address assignment 1

4 doc.: IEEE 802.11-12/1054r0 Submission Faster scanning cannot be achieved by a 2.4GHz AP authorizing operation in a 5GHz channel TGai discussed a mechanism in July that reduces scanning time by allowing a 2.4GHz BSS with a physically collocated 5GHz BSS to indicate to a STA that it may transmit in the operating channel of 5GHz BSS without first hearing a Beacon from the 5GHz AP –There is considerable delay in AP discovery as are many channels to scan 3 non overlapping channels in 2.4 GHz but there are about 20 such channels in 5 GHz –Usually APs are dual band APs, i.e. operate on 2.4 GHz and 5 GHz Moving forward there may be more than 2 bands (60 GHz, TV bands) Regulations do not appear to allow enablement of 5GHz DFS operation from the 2.4Ghz band An alternative mechanism needs to be found to reduce scanning time in the 5Ghz bands Sep. 2012 Santosh Pandey (Cisco)Slide 4

5 doc.: IEEE 802.11-12/1054r0 Submission FILS scanning goals and requirements Sep. 2012 Slide 5Santosh Pandey (Cisco) Goal: Enable faster AP discovery while not wasting medium time Requirements: –Mechanism must be very efficient if it is used in Beacons (or FILS Discovery Frame (FDF) ) to carry the necessary information –Mechanism must be extensible, such that optional additional information may be added based on deployment requirements –Mechanism must reduce the number of Probe Responses generated due to a Probe Request A FILS reduced neighbor report is required

6 doc.: IEEE 802.11-12/1054r0 Submission Existing mechanisms to not fulfill FILS reduced neighbor report requirements No solution fits well in the FILS reduced neighbor report requirement Sep. 2012 Slide 6Santosh Pandey (Cisco) NameDescriptionEvaluationSummary Neighbor Report (8.4.2.39) Part of Measurement Request/Response Includes mandatory fields that are not be essential for passive scanning, e.g. BSSID Beacon Report (8.4.2.24.7) Part of Measurement Request/Response Includes mandatory fields that are not be essential for passive scanning, e.g. Measurement Start Time, Measurement Token, etc AP Channel Report (8.4.2.38) May be optionally included in the Beacon Additional subelements may be added to existing AP Channel Report, however modifying the channel list may lead to legacy issues and/or suboptimal field arrangements Beacon Timing element (8.4.2.107) May be optionally included in the Beacon from mesh STA Mesh solution. No TSF time included and no channel information included

7 doc.: IEEE 802.11-12/1054r0 Submission Proposed solution Introduce a new information element called FILS Reduced Neighbor Report (RNR) IE to report neighboring APs Define the IE with limited mandatory fields that are essential for AP discovery via passive scanning Include optional subelements for any additional information to enhance AP discovery Sep. 2012 Santosh Pandey (Cisco)Slide 7

8 doc.: IEEE 802.11-12/1054r0 Submission FILS Reduced Neighbor Report IE List of Neighbor AP Information fields contains one or more Neighbor AP Information fields TGai STAs may optionally include this IE in the Beacon or Probe Response Frames Sep. 2012 Santosh Pandey (Cisco)Slide 8 Element IDLengthNeighbor AP Information field #1 Neighbor AP Information field #2 (optional) …Neighbor AP Information field #n (optional) Octets:11 variable FILS Reduced Neighbor Report

9 doc.: IEEE 802.11-12/1054r0 Submission Neighbor AP Information field The Neighbor AP Information field indicates the neighbor APs TBTT operating on a channel The Operating Class subfield is 1 octet in length as defined in 8.4.1.36. It specifies the operating class for the channel in Channel Number subfield. The Channel Number is 1 octet in length as defined in 18.3.8.4.3. It reports the operating channel of the neighbor APs included in this IE The TBTT Control subfield is 4 bits in length. –The bit B3 in this subfield is set if the BSSs whose TBTTs reported in this IE are from physically collocated BSSs –Bits B0-B2 are reserved The TBTT Information Count field is 4 bits in length and indicates the number of TBTT Information fields included in the IE Sep. 2012 Santosh Pandey (Cisco)Slide 9 Bits:B0 B7 B0 B3 B4 B7variable Element IDLengthOperating Class Channel Number TBTT Control TBTT Informa tion Count field TBTT Information field #1 TBTT Information field #2 (optional) …TBTT Information field #n (optional) Octets:1111 1 variable Neighbor AP information field

10 doc.: IEEE 802.11-12/1054r0 Submission TBTT Information field Subelement bit (S) is set if there are subelements included in this TBTT Information field The TBTT in TUs subfield is 7 bits in length and indicates the offset in TUs to their next TBTT from the time specified in timestamp field of the Beacon or Probe Response frame containing this IE –The value 1111111 (127) is reserved and is used to indicate unknown TBTT value Optional subelements (incomplete list - TBD) –Beacon interval (8.4.1.3) –2 octets field The Beacon interval may be used by STAs to wait for the next Beacon transmissions if it cannot receive the immediate Beacon Sep. 2012 Santosh Pandey (Cisco)Slide 10 Bits:B0 B1 B7variable STBTT in TUsSubelements (optional) Octets: 1 variable TBTT Information field

11 doc.: IEEE 802.11-12/1054r0 Submission MLME changes FILS AP Beacon may optionally include the FILS RNR IE A FILS STA shall indicate that it is FILS capable FILS AP Probe Response –A FILS AP receiving a Probe Request frame from a FILS non-AP STA may respond with a Probe Response frame. It may include the FILS RNR IE in the Probe Response frame. Sep. 2012 Santosh Pandey (Cisco)Slide 11

12 doc.: IEEE 802.11-12/1054r0 Submission Sep. 2012 Slide 12 Motion TBD Santosh Pandey (Cisco)

13 doc.: IEEE 802.11-12/1054r0 Submission Sep. 2012 Slide 13 Backup Santosh Pandey (Cisco)

14 doc.: IEEE 802.11-12/1054r0 Submission Current 802.11 Neighbor Report details Current 802.11 neighbor report may be used to communicate the other channels that the AP is operating on –A measurement Request/Response format –Includes mandatory fields that are not be essential for passive scanning, e.g. BSSID Sep. 2012 Slide 14Santosh Pandey (Cisco)

15 doc.: IEEE 802.11-12/1054r0 Submission Current Beacon Report A Beacon Report may also be used to report the neighboring Beacons (8.4.2.24.7) –Part of Measurement Request/Report –Includes mandatory fields that are not be essential for passive scanning, e.g. Measurement Start Time, Measurement Token, etc Sep. 2012 Santosh Pandey (Cisco)Slide 15

16 doc.: IEEE 802.11-12/1054r0 Submission AP neighbor report AP Channel Report may be used to indicate the channels on which neighboring APs are present (8.4.2.38) –May be optionally included in the Beacon –No TSF time included and no indication of master element Sep. 2012 Santosh Pandey (Cisco)Slide 16

17 doc.: IEEE 802.11-12/1054r0 Submission Beacon Timing element AP Channel Report may be used to indicate the channels on which neighboring APs are present (8.4.2.107) –May be optionally included in the Beacon for Mesh STAs –No TSF time included, no channel information included and no indication of master element Sep. 2012 Santosh Pandey (Cisco)Slide 17

18 doc.: IEEE 802.11-12/1054r0 Submission FILS Reduced Neighbor Request The FILS Reduced Neighbor Request may be included in a Probe Request. Non-AP STAs may indicate the APs they are interested in by including the FILS Reduced Neighbor Request SSID List element (8.4.2.75) Optional subelements –HESSID ? Sep. 2012 Santosh Pandey (Cisco)Slide 18 Element ID (Type) LengthSSID ListOptional subelements / subfields Octets:11variable FILS Reduced Neighbor Request

Download ppt "Doc.: IEEE 802.11-12/1054r0 Submission Sep. 2012 Santosh Pandey (Cisco)Slide 1 FILS Reduced Neighbor Report Date: 2012-09-07 Authors:"

Similar presentations

Doc.:IEEE 802.11-11/1523r4 Submission November 2011 Access Delay Reduction for FILS: Network Discovery & Access congestion Improvements Slide 1 Authors:

Doc.:IEEE /1523r4 Submission November 2011 Access Delay Reduction for FILS: Network Discovery & Access congestion Improvements Slide 1 Authors:
Doc.: IEEE 802.11-11/1521r2 Submission January 2012 Marc Emmelmann, FOKUSSlide 1 AP and Network Discovery Enhancements Date: 2012-01-17 Authors:

Doc.: IEEE /1521r2 Submission January 2012 Marc Emmelmann, FOKUSSlide 1 AP and Network Discovery Enhancements Date: Authors:
Doc.: IEEE 802.11-12/0567r1 Submission May 2012 Huawei Slide 1 Multiple Frequency Channel Scanning Date: 2012-05-04 Authors: NameAffiliationsAddressPhoneemail.

Doc.: IEEE /0567r1 Submission May 2012 Huawei Slide 1 Multiple Frequency Channel Scanning Date: Authors: NameAffiliationsAddressPhone .
Doc.: IEEE 802.11-12/0537r0 Submission May 2012 Jonathan Segev (Intel)Slide 1 Passive and Active Scanning Mixture Date: 2012-05-02 Authors:

Doc.: IEEE /0537r0 Submission May 2012 Jonathan Segev (Intel)Slide 1 Passive and Active Scanning Mixture Date: Authors:
Submission doc.: IEEE 11-12-0406-03-00ai May 2012 InterDigital, KDDI, Nokia, Huawei, Intel, Qcomm Slide 1 Proposed SFD Text for 802.11ai Passive Scanning.

Submission doc.: IEEE ai May 2012 InterDigital, KDDI, Nokia, Huawei, Intel, Qcomm Slide 1 Proposed SFD Text for ai Passive Scanning.
Doc.: IEEE 802.11-11/1169r1 Submission January 2012 Jihyun Lee, LG ElectronicsSlide 1 FILS Association Date: 2012-01-17 Authors: NameAffiliationsAddressPhoneemail.

Doc.: IEEE /1169r1 Submission January 2012 Jihyun Lee, LG ElectronicsSlide 1 FILS Association Date: Authors: NameAffiliationsAddressPhone .
Doc.: IEEE 802.11-12/0550 Submission NameAffiliationsAddressPhone Kiseon RyuLG Electronics10225 Willow Creek Rd, San Diego, CA, 92131, USA +1

Doc.: IEEE /0550 Submission NameAffiliationsAddressPhone Kiseon RyuLG Electronics10225 Willow Creek Rd, San Diego, CA, 92131, USA +1
Doc.: IEEE 802.11-12/933r6 Submission July 2012 Fang Xie (CMCC)Slide 1 Access Control Mechanism for FILS Date: 2012-07-17 Authors: NameAffiliationsAddressPhoneemail.

Doc.: IEEE /933r6 Submission July 2012 Fang Xie (CMCC)Slide 1 Access Control Mechanism for FILS Date: Authors: NameAffiliationsAddressPhone .
Doc.: IEEE 802.11-12/1042r3 Submission NameAffiliationsAddressPhoneemail Giwon ParkLG Electronics LG R&D Complex 533, Hogye- 1dong, Dongan-Gu, Anyang,

Doc.: IEEE /1042r3 Submission NameAffiliationsAddressPhone Giwon ParkLG Electronics LG R&D Complex 533, Hogye- 1dong, Dongan-Gu, Anyang,
Doc.: IEEE 802.11-12/1042 Submission NameAffiliationsAddressPhoneemail Giwon ParkLG Electronics LG R&D Complex 533, Hogye- 1dong, Dongan-Gu, Anyang, Kyungki,

Doc.: IEEE /1042 Submission NameAffiliationsAddressPhone Giwon ParkLG Electronics LG R&D Complex 533, Hogye- 1dong, Dongan-Gu, Anyang, Kyungki,
Submission doc.: IEEE 802.11-11/1003r2 July 2011 Hiroki Nakano, Trans New Technology, Inc.Slide 1 Upper Layer Data on Management frames Date: 2011-07-18.

Submission doc.: IEEE /1003r2 July 2011 Hiroki Nakano, Trans New Technology, Inc.Slide 1 Upper Layer Data on Management frames Date:
Submission doc.: IEEE 11-11/1414r2 November 2011 Katsuo Yunoki, KDDI R&D LaboratoriesSlide 1 Probe Request and Response in TGai Date: 2011-11-02 Authors:

Submission doc.: IEEE 11-11/1414r2 November 2011 Katsuo Yunoki, KDDI R&D LaboratoriesSlide 1 Probe Request and Response in TGai Date: Authors:
Doc.: IEEE 802.11-12/0257r1 Submission NameAffiliationsAddressPhoneemail Giwon ParkLG Electronics LG R&D Complex 533, Hogye- 1dong, Dongan-Gu, Anyang,

Doc.: IEEE /0257r1 Submission NameAffiliationsAddressPhone Giwon ParkLG Electronics LG R&D Complex 533, Hogye- 1dong, Dongan-Gu, Anyang,
Submission doc.: IEEE 11-12/0281r0 March 2012 Jarkko Kneckt, NokiaSlide 1 Recommendations for association Date: 2012-03-05 Authors:

Submission doc.: IEEE 11-12/0281r0 March 2012 Jarkko Kneckt, NokiaSlide 1 Recommendations for association Date: Authors:
Doc.: IEEE 802.11-12/0067r0 Submission Jan 2012 Phillip Barber, HuaweiSlide 1 Active Scanning Time Notification Date: 2012-01-12 Authors: NameAffiliationsAddressPhoneemail.

Doc.: IEEE /0067r0 Submission Jan 2012 Phillip Barber, HuaweiSlide 1 Active Scanning Time Notification Date: Authors: NameAffiliationsAddressPhone .
Doc.: IEEE 802.11-11/0977r2 Submission NameAffiliationsAddressPhoneemail Hitoshi MORIOKA ROOT INC.2-14-38 Tenjin, Chuo-ku, Fukuoka 810-0001 JAPAN +81-92-771-

Doc.: IEEE /0977r2 Submission NameAffiliationsAddressPhone Hitoshi MORIOKA ROOT INC Tenjin, Chuo-ku, Fukuoka JAPAN
Submission doc.: IEEE 11-12-0406-00-00ai March 2012 InterDigital, KDDI, Nokia, Huawei, IntelSlide 1 Proposed SFD Text for 802.11ai Passive Scanning Improvement.

Submission doc.: IEEE ai March 2012 InterDigital, KDDI, Nokia, Huawei, IntelSlide 1 Proposed SFD Text for ai Passive Scanning Improvement.
Doc.: IEEE 802.11-12/0897r0 SubmissionJae Seung Lee, ETRISlide 1 Active Scanning considering Operating Status of APs Date: 2012-07-06 July 2012.

Doc.: IEEE /0897r0 SubmissionJae Seung Lee, ETRISlide 1 Active Scanning considering Operating Status of APs Date: July 2012.
Doc.: IEEE 802.11-11/1500-00-00ai Submission Nov 2011 Huawei Technologies Co. LtdSlide 1 Broadcast Probe Response in TGai Date: 2011-11-05 Authors: NameAffiliationsAddressPhoneemail.

Doc.: IEEE / ai Submission Nov 2011 Huawei Technologies Co. LtdSlide 1 Broadcast Probe Response in TGai Date: Authors: NameAffiliationsAddressPhone .
Doc.: IEEE 802.11-12/0061r1 SubmissionJae Seung Lee, ETRISlide 1 Probe Response frame transmission interval Date: 2011-01-12.

Doc.: IEEE /0061r1 SubmissionJae Seung Lee, ETRISlide 1 Probe Response frame transmission interval Date:

Similar presentations

Ads by Google