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Doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 1 Modifications to the 60GHz PAR & 5 C’s Proposal Date: 2008-04-30.

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Presentation on theme: "Doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 1 Modifications to the 60GHz PAR & 5 C’s Proposal Date: 2008-04-30."— Presentation transcript:

1 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 1 Modifications to the 60GHz PAR & 5 C’s Proposal Date: 2008-04-30 Authors:

2 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 2 Abstract This document suggests modifications to the 60 GHz PAR in 11-08-0223-01-0vht-proposal-for-60ghz-vht-par.doc to address study group comments. Minor modifications described for the 5 C’s in 11-08-0224-00- 0vht-proposal-for-60ghz-vht-5c.doc.

3 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 3 Discussion Points on 60 GHz and 08/223 Should VHT create an amendment to 802.11 or new standard (i.e. 802.11.3) for 60 GHz? –What changes to 802.11 MAC are required? Usage models No mention of range in the PAR proposal What level of coexistence with 802.15.3c? In what way does 60 GHz VHT have distinct identity from 802.15.3c?

4 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 4 Amendment vs Standard Opinions voiced that continued amending of 802.11 is becoming unmanageable especially with a major modification There was discussion suggesting that significant changes to the 802.11 lower MAC may be required for 60 GHz January 2008 strawpoll: for 57-62GHz, amendment or new standard: –Amendment: 11 –New standard: 29 We need to maintain and enhance the 802.11 ecosystem –Reuse and maintain backward compatibility to 802.11 management plane E.g. association, authentication, security, measurement, MIB

5 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 5 60 GHz Usage Models WFA usages in 07/2988 –Desktop storage and display –Video streaming –Sync and Go –Wireless networking for small office –backhaul Several 60 GHz usages were presented in 07/2587 –High speed cable replacement (HDMI, monitor) –Wireless docking –Sync and Go –Wireless LAN Many of these are identical to typical PAN applications Strawpoll in Jan 2008 –Should the study group specify limited usage models in a <6 GHz PAR and a 60 GHz PAR? Y/N/A: 39/1/19 To limit usage models and differentiate from 802.15.3c, VHT should focus purpose on core of 802.11 which is data networking

6 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 6 Range My home officeMy work cubicle These are LAN applications, regardless of range 1.5 m 3 m 10 m

7 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 7 Coverage Refer to “Multi-band Modulation and Coding” concept in 07/2780 Coverage from combo 60 + 2.4/5 GHz devices Fast session transfer between 60 GHz and 2.4/5 GHz bands From Heath, Daniels “Multi-band Modulation, Coding, and Medium Access Control”, 07/2780r1

8 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 8 Coexistence with 802.15.3c Text from 802.15.3c PAR, additional explanatory notes “It is in the best interest of users and the industry to strive for a level of coexistence with other wireless systems, especially those in similar market spaces. Coexistence requirements will be established in the Task Group selection criteria against which the proposals will be evaluated.” –Agreed Specifically, in scope and “additional comments” we can state that VHT will investigate coexistence with other 60 GHz systems Furthermore we can set up liaison to 802.15.3c and jointly work on mutual coexistence

9 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 9 Summary on Distinct Identity Usage model –Differentiate from PAN applications of video cable replacement, kiosk sync-and-go –Emphasize typical 802.11 applications like network connectivity and file transfer between devices Capacity enhancement of wireless networking infrastructure Reuse and maintain backward compatibility to 802.11 management plane Retain the 802.11 fundamentals including network architecture Fast session transfer between 60 GHz and 2.4/5 GHz bands

10 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 10 Modifications to PAR & 5C in 08/223r1 and 08/224r0 2.1 Title of Standard 5.2 Scope 5.4 Purpose 5.5 Need for Project (new text) 7.4 Additional Comments (new text) 17.5.2 Compatibility 17.5.3 Distinct Identity 17.5.4 Technical Feasibility 17.5.5 Economic Feasibility

11 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 11 Modified 2.1 Title of Standard: IEEE Standard for Information Technology - Telecommunications and information exchange between systems - Local and metropolitan area networks - Specific requirements - Part 11.3: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Very High Throughput. Title from 08/223r1 –Draft Amendment to STANDARD [FOR] Information Technology- Telecommunications and information exchange between systems- Local and Metropolitan networks-Specific requirements-Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) specifications: Enhancements for Very High Throughput

12 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 12 Modified 5.2 Scope The scope of this project is to define a new standard in 802.11 for a Physical Layer (PHY) and Medium Access Control Layer (MAC) to enable operation in the 60 GHz frequency band (typically 57-66 GHz) which will be capable of very high throughput. The MAC and PHY specified in this standard: –Enable a maximum throughput of at least 1 Gbps, as measured at the MAC data service access point (SAP) –Retain the 802.11 fundamentals including network architecture (e.g. BSS, ESS) –Maintain interoperability with the 802.11 management plane (e.g. association, authentication, security, roaming, network measurement and management, MIB) –Enable fast session transfer between 60 GHz and 2.4/5 GHz bands –Address coexistence with other systems in the band Scope from 08/223r1 –The scope of this project is to define an amendment that will standardize modifications to both the 802.11 physical layers (PHY) and the 802.11 Medium Access Control Layer (MAC) to enable operation in the 60 GHz frequency band (typically 57-66 GHz) which will be capable of very high throughput, with a maximum throughput of at least 1Gbps, as measured at the MAC data service access point (SAP). This VHT amendment will be capable of recognizing and allocating dedicated VHT channels which are compatible with the IEEE 802.15.3c amendment.

13 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 13 Modified 5.4 Purpose The purpose of the project is to improve the 802.11 wireless local area network (LAN) user experience by providing significantly higher throughput for data networking. Purpose from 08/223r1 –The purpose of the project is to improve the 802.11 wireless local area network (LAN) user experience by providing significantly higher throughput for current applications and to enable new applications and market segments. This shall be done by maintaining backwards compatibility to previous 802.11 standards maintaining the user experience of 802.11, for example, 802.11i/w for security, 802.11k/v etc. for management etc.

14 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 14 New 5.5 Need for Project As WLAN usage grows, there exists an increasing need for additional capacity. Additional high bandwidth channels are needed for efficient support of high throughput usage. Mainstream wired LAN products have shifted to Gigabit per second speeds. WLAN technology must advance to provide a comparable throughput.

15 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 15 New 7.4 Additional Comments 5.2) –Fast session transfer between 60 GHz and 2.4/5 GHz bands will enable typical WLAN coverage for multi-band devices. However, this does not imply that devices must be multi-band. The standard will specify a mechanism for multi-band devices. –It is in the best interest of users and the industry to strive for a level of coexistence between wireless systems. VHT will investigate coexistence with other systems in the band.

16 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 16 Modified 17.5.2 Compatibility Compatibility with IEEE 802 requirements will result from keeping the MAC SAP interface the same as for the existing 802.11 standard. The proposed standard shall introduce no 802.1 architectural changes. The MAC SAP definition shall not be altered, ensuring that all LLC and MAC interfaces are compatible to and in conformance with the IEEE 802.1 Architecture, Management and Internetworking standards. New managed objects shall be defined as necessary in a format and structure consistent with existing 802.11 managed objects. Compatibility from 08/224r0 –Compatibility with IEEE 802 requirements will result from keeping the MAC SAP interface the same as for the existing 802.11 standard. The proposed amendment shall introduce no 802.1 architectural changes. The MAC SAP definition shall not be altered, ensuring that all LLC and MAC interfaces are compatible to and in conformance with the IEEE 802.1 Architecture, Management and Internetworking standards. New managed objects shall be defined as necessary in a format and structure consistent with existing 802.11 managed objects.

17 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 17 Modified 17.5.3 Distinct Identity c) Easy for the document reader to select the relevant specification. –60 GHz Very High Throughput will be introduced as an new standard in 802.11. Distinct Identity c) from 08/224r0 –The Very High Throughput standard will be introduced as an amendment to the 802.11 specification.

18 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 18 Modified 17.5.4 Technical Feasibility c) Confidence in reliability. –Analysis of current WLAN products and of proposals for potential candidate approaches provides confidence in the reliability of the proposed solutions. The Study Group envisions that the proposed standard will result in similar or improved reliability over current levels. Technical Feasibility c) from 08/224r0 –Analysis of current WLAN products and of proposals for potential candidate approaches provides confidence in the reliability of the proposed solutions. The Study Group envisions that the proposed amendment will result in similar or improved reliability over current levels.

19 doc.: IEEE 802.11-08/0498r0 Submission April 2008 Eldad Perahia, Intel CorporationSlide 19 Modified 17.5.5 Economic Feasibility c) Consideration of installation costs. –The proposed standard has no known impact on installation costs. Economic Feasibility c) from 08/224r0 –The proposed amendment has no known impact on installation costs.

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