July 2006 doc IEEE 802 11 061023 r

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July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Proposal for TGy Authors:

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Proposal for TGy Authors: Name Date: 2006 -07 -17 Company Eldad Perahia Intel Address Phone email JF 3 -336 2111 NE 25 th Ave Hillsboro, OR 97124 503 -712 -8081 eldad. [email protected] com Jim Petranovich Conexant jim. [email protected] NEXANT. COM Jason Trachewsky Broadcom [email protected] com Notice: This document has been prepared to assist IEEE 802. 11. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release: The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802. 11. Patent Policy and Procedures: The contributor is familiar with the IEEE 802 Patent Policy and Procedures <http: // ieee 802. org/guides/bylaws/sb-bylaws. pdf>, including the statement "IEEE standards may include the known use of patent(s), including patent applications, provided the IEEE receives assurance from the patent holder or applicant with respect to patents essential for compliance with both mandatory and optional portions of the standard. " Early disclosure to the Working Group of patent information that might be relevant to the standard is essential to reduce the possibility for delays in the development process and increase the likelihood that the draft publication will be approved for publication. Please notify the Chair <stuart. [email protected] com> as early as possible, in written or electronic form, if patented technology (or technology under patent application) might be incorporated into a draft standard being developed within the IEEE 802. 11 Working Group. If you have questions, contact the IEEE Patent Committee Administrator at <[email protected] org>. Submission Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Abstract • The FCC

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Abstract • The FCC created the 3650 -3700 MHz to enable cheap rural wireless internet access • The FCC regulations include contention based protocol, power limits, and emission limits • The TGy PAR specifies that TGy only applies to 3650 -3700 MHz band in the USA • The scope and purpose includes extensions to 11 a, 11 j, and 11 h – Specification of new regulatory class – Sensing of other transmitters • We present a proposal for TGy which meets the requirements of the PAR and FCC regulations Submission 2 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Background on 3650 -3700

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Background on 3650 -3700 MHz Band • The intent of the FCC was to create a band that was useful for cheap rural wireless internet access: – FCC Report & Order 05 -56: “ 2. We affirm our belief that the 3650 MHz band is well-suited to respond to the needs expressed by the growing number of entrepreneurial wireless internet service providers (WISPs), that currently bring broadband services to consumers particularly those living in rural areas of the United States. Today, rural consumers often have fewer choices for broadband services than consumers in more populated areas…” • Domestic use includes protection zones for FSS and government radar, in addition, off-shore navy radar • FCC mandates contention based protocol • Operation of a system will require licensing and registration Submission 3 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Enabling a Market in

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Enabling a Market in 3650 MHz • Potential Market for this Band (See next slide for regional restrictions) – US only • § 90, not § 15 • Requires licensing and registration – – • • Rural Backhaul Low density deployments Long range This type of specialized use and market does not have the volume to support custom technology Simple modifications to current standard is the best solution – Reuse of existing 11 a PHY will allow for re-use of available baseband silicon, enabling the market – Reuse TGj work • A great deal of time and effort was spent on dealing with the same channelization and MAC timing issues – No modifications are necessary for range extension • The high EIRP afforded to us by the FCC (25 Watts for fixed, 1 Watt for mobile) enables long range • Section 17 already contains 5 & 10 MHz channelization which provides longer guard intervals • Potential use of directional antennas also reduces the delay spread of the channel • Section 17 already contains MAC timing modifications for 5 & 10 MHz channelization (slot time, SIFS, CCA time) Submission 4 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Metropolitan Areas Requiring Coordination

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Metropolitan Areas Requiring Coordination with FSS and Government Sites FSS protection zones in blue Government protection zone in green Top 50 counties by population (2000 census) in red Many large metropolitan areas are restricted! Submission 5 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 TGy PAR • The

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 TGy PAR • The scope of the proposed project is the application of 802. 11 based systems to the 3650 -3700 MHz band in the USA. • The purpose of this project is to standardize the mechanisms required to allow shared 802. 11 operation with other users in the 3650 -3700 MHz band in the USA. Likely required mechanisms include: • Specification of new regulatory classes (extending 802. 11 j) • Sensing of other transmitters (extending 802. 11 a) • Transmit Power Control (extending 802. 11 h) • Dynamic Frequency Selection (extending 802. 11 h) Submission 6 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 General Approach • Extend

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 General Approach • Extend 11 j to new regulatory class • No changes required for 5 & 10 MHz channelization, already exists in Section 17 (11 a) in P 802. 11 -REVma. D 6. 0 • Modify CCA for detection at lower levels • Minimal change to support beaconing for mobile devices (if we want to support them) Submission 7 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 FCC Regulations and Minimum

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 FCC Regulations and Minimum Required Changes in dot 11 Submission Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 7 Definitions

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 7 Definitions • Contention based protocol: A protocol that allows multiple users to share the same spectrum by defining the events that must occur when two or more transmitters attempt to simultaneously access the same channel and establishing rules by which a transmitter provides reasonable opportunities for other transmitters to operate. Such a protocol may consist of procedures for initiating new transmissions, procedures for determining the state of the channel (available or unavailable), and procedures for managing retransmissions in the event of a busy channel. Submission • Dot 11 modifications – CCA • Need lower levels than 11 a (-62 d. Bm in 20 MHz) for better sharing with non 802. 11 systems: -82 d. Bm for example – 11 a CCA is based on OFDM preamble detection, other available measurements • DFS in 11 h already provides RPI measure • 11 k already provides RCPI, ANPI, and RSNI • We could specify CCA based on these measures – Define maximum transmission time before channel sensing? • Could reuse Japanese 4 ms CS rule 9 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1307 Licensing

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1307 Licensing • The 3650 -3700 MHz band is • Dot 11 modifications licensed on the basis of non– Modify Annex I & J to include this band exclusive nationwide licenses. Non-exclusive nationwide licenses will serve as a prerequisite for registering individual fixed and base stations. A licensee cannot operate a fixed or base station before registering it under its license and licensees must delete registrations for unused fixed and base stations. Submission 10 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1321 Power

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1321 Power and antenna limits • • • (a) Base and fixed stations are limited to 25 watts/25 MHz equivalent isotropically radiated power (EIRP). In any event, the peak EIRP power density shall not exceed 1 Watt in any one-megahertz slice of spectrum. (b) In addition to the provisions in paragraph (a) of this section, transmitters operating in the 3650 -3700 MHz band that emit multiple directional beams, simultaneously or sequentially, for the purpose of directing signals to individual receivers or to groups of receivers provided the emissions comply with the following: . . . (c) Mobile and portable stations are limited to 1 watt/25 MHz EIRP. In any event, the peak EIRP density shall not exceed 40 milliwatts in any one-megahertz slice of spectrum. Submission • Dot 11 modifications – Add power levels to Annex I & J 11 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1323 Emission

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1323 Emission limits • • (a) The power of any emission outside a licensee's frequency band(s) of operation shall be attenuated below the transmitter power (P) within the licensed band(s) of operation, measured in watts, by at least 43 + 10 log (P) d. B. Compliance with this provision is based on the use of measurement instrumentation employing a resolution bandwidth of 1 MHz or less, but at least one percent of the emission bandwidth of the fundamental emission of the transmitter, provided the measured energy is integrated over a 1 MHz bandwidth. (b) When an emission outside of the authorized bandwidth causes harmful interference, the Commission may, at its discretion, require greater attenuation than specified in this section. Submission • Dot 11 modifications – Add spectral mask to Annex I – Add channelization to Annex J • We just need to select the channels (center frequencies given below, as an example) – – 12 20 MHz: 3665+i*20, i = 0, 1 10 MHz: 3660+i*10, i = 0, 1, 2, 3 5 MHz: 3657. 5+i*5, i = 0, 1…, 7 This channel assignment leaves 5 MHz guard band at high and low ends for protection again high power radar and FSS in neighboring bands Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Why Guard Band is

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Why Guard Band is Necessary? • FCC Report & Order 05 -56: – 72. Furthermore, we reiterate to potential users of the 3650 -3700 MHz band that the adjacent 3600 -3650 MHz band is used by high power federal government radar systems and they are not limited to the three protected sites. Consequently, terrestrial transmitter/receiver manufacturers will likely find the need to incorporate design measures to protect their equipment from possible overload by these adjacent band radar signals. The Commission strongly recommends that parties installing equipment in this band should determine if there any nearby Federal Government radar systems that could affect their operations. Information regarding the locations and operational characteristics of the radar systems operating adjacent to this band are provided in NTIA TR-99 -361. Submission 13 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1331 Restrictions

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1331 Restrictions on the operation of base and fixed stations • • • (a) (1) Except as provided in paragraph (a)(2) of this section, base and fixed stations may not be located within 150 km of any grandfathered satellite earth station operating in the 3650 -3700 MHz band. The coordinates of these stations are available at [website]. (2) Base and fixed stations may be located within 150 km of a grandfathered satellite earth station provided that the licensee of the satellite earth station and the 3650 -3700 MHz licensee mutually agree on such operation. (3) Any negotiations to enable base or fixed station operations closer than 150 km to grandfathered satellite earth stations must be conducted in good faith by all parties. (b) (1) Except as specified in paragraph (b)(2) of this section, base and fixed stations may not be located within 80 km of the following Federal Government radiolocation facilities: St. Inigoes, MD - 38° 10’ N. , 76°, 23’ W. Pascagoula, MS - 30° 22’ N. , 88°, 29’ W. Pensacola, FL 30° 21’ 28” N. , 87°, 16’ 26” W. Note: Licensees installing equipment in the 3650 -3700 MHz band should determine if there any nearby Federal Government radar systems that could affect their operations. Information regarding the location and operational characteristics of the radar systems operating adjacent to this band are provided in NTIA TR-99 -361. (2) Requests for base or fixed station locations closer than 80 km to the Federal Government radiolocation facilities listed in paragraph (b)(1) of this section will only be approved upon successful coordination by the Commission with NTIA through the Frequency Assignment Subcommittee of the Interdepartmental Radio Advisory Committee. Submission 14 • Dot 11 modifications – Devices will need to coordinate with FSS and government radiolocation sites prior to registration. – This is beyond the scope of the standard, so no modifications required Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1333 Restrictions

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1333 Restrictions on the operation of mobile and portable stations • (a) Mobile and portable stations may operate only if they can positively receive and decode an enabling signal transmitted by a base station. • (b) Any mobile/portable stations may communicate with any other mobile/portable stations so long as each mobile/portable can positively receive and decode an enabling signal transmitted by a base station. • (c) Airborne operations by mobile/portable stations is prohibited. Submission • Dot 11 modifications – Do we care to enable mobile device? – If so, • Mandate infrastructure mode, no IBSS with mobile clients • Mobile client must receive and decode beacon from AP before transmitting • Specify the maximum amount of time that can lapse between mobile STA receiving and decoding a beacon and transmitting a packet (500 ms? ) • Will need to differentiate between fixed and mobile client 15 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1337 Operation

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1337 Operation near Canadian and Mexican borders • • • (a) Fixed devices generally must be located at least 8 kilometers from the U. S. /Canada or U. S. /Mexico border if the antenna of that device looks within the 160° sector away from the border. Fixed devices must be located at least 56 kilometers from each border if the antenna looks within the 200° sector towards the border. (b) Fixed devices may be located nearer to the U. S. /Canada or U. S. /Mexico border than specified in paragraph (a) of this section only if the Commission is able to coordinate such use with Canada or Mexico, as appropriate. (c) Licensees must comply with the requirements of current and future agreements with Canada and Mexico regarding operation in U. S. /Canada and U. S. /Mexico border areas. Submission • Dot 11 modifications – The location and pointing direction and possible coordination will need to be determined before registration – This is beyond the scope of the standard, so no modifications required 16 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1319 Policies

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 1319 Policies governing the use of the 3650 -3700 MHz band. • • • (a) Channels in this band are available on a shared basis only and will not be assigned for the exclusive use of any licensee (b) Any base, fixed, or mobile station operating in the band must employ a contention-based protocol. (c) All applicants and licensees shall cooperate in the selection and use of frequencies in the 3650 -3700 MHz band in order to minimize the potential for interference and make the most effective use of the authorized facilities. A database identifying the locations of registered stations will be available at <http: //wireless. fcc. gov/uls>. Licensees should examine this database before seeking station authorization, and make every effort to ensure that their fixed and base stations operate at a location, and with technical parameters, that will minimize the potential to cause and receive interference. Licensees of stations suffering or causing harmful interference are expected to cooperate and resolve this problem by mutually satisfactory arrangements. Submission 17 • Dot 11 modifications – Licensees should examine the FCC database for neighboring systems prior to registration – This is beyond the scope of the standard, so no modifications required Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 203 Certification

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 § 90. 203 Certification required • • (1) Applications for all transmitters must describe the methodology used to meet the requirement that each transmitter employ a contention based protocol (see §§ 90. 7, 90. 1305 and 90. 1321 of this part); (2) Applications for mobile transmitters must identify the base stations with which they are designed to communicate and describe how the requirement to positively receive and decode an enabling signal is incorporated (see § 90. 1333 of this part); and (3) Applications for systems using advanced antenna technology must provide the algorithm used to reduce the equivalent isotropically radiated power (EIRP) to the maximum allowed in the event of overlapping beams (see § 90. 1321 of this part). (4) Applications for fixed transmitters must include a description of the installation instructions and guidelines for RF safety exposure requirements that will be included with the transmitter. (See § 90. 1335). Submission 18 • Dot 11 modifications – Covered by other slides Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Conclusion • An amendment

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Conclusion • An amendment must meet the TGy PAR and FCC regulations • TGy PAR – TGy only applies to 3650 -3700 MHz band in the USA – Extensions to 11 a, 11 j, and 11 h • Specification of new regulatory class • Sensing of other transmitters • FCC – Contention based protocol allowing multiple users to share the same spectrum – Power limits – Emission limits Submission 19 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Backup Submission Eldad Perahia

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Backup Submission Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Protection Zones around Grandfathered

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Protection Zones around Grandfathered FSS and Government Sites Reference: FCC-05 -56 “…Furthermore, we reiterate to potential users of the 3650 -3700 MHz band that the adjacent 3600 -3650 MHz band is used by high power federal government radar systems and they are not limited to the three protected sites… The Commission strongly recommends that parties installing equipment in this band should determine if there any nearby Federal Government radar systems that could affect their operations…” Submission 21 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Shipboard Radars Operating/Testing Areas

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Shipboard Radars Operating/Testing Areas (3. 1 -3. 7 GHz) FCC Part 2. 106, Note US 349: “The band 3650 -3700 MHz is also allocated to the Federal radiolocation service on a non-interference basis for use by ship stations located at least 44 nautical miles in off-shore ocean areas on the condition that harmful interference is not caused to non-Federal operations” Reference: NTIA TR-99 -361. Submission 22 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Airborne Radars Operating/Testing Areas

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Airborne Radars Operating/Testing Areas (3. 1 -3. 7 GHz) military operating areas (MOAs) restricted areas (RAs) military training routes (MTRs) Reference: NTIA TR-99 -361. Submission 23 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Land Based Radar Sites

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 Land Based Radar Sites (3. 1 -3. 7 GHz) Reference: NTIA TR-99 -361. Submission 24 Eldad Perahia (Intel), et al

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 References • NTIA TR-99

July 2006 doc. : IEEE 802. 11 -06/1023 r 1 References • NTIA TR-99 -361 • FCC Part 2. 106 • FCC-05 -56 Submission 25 Eldad Perahia (Intel), et al