etsi en standards update ism band wireless … en standards update ism band wireless devices 2.4 ghz...

32
ETSI EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band Harmonized Standards: ETSI EN 300 328 v1.8.1 and ETSI EN 301 893 v1.7.1

Upload: lamcong

Post on 23-Apr-2018

224 views

Category:

Documents


4 download

TRANSCRIPT

Page 1: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

ETSI EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band

Harmonized Standards: ETSI EN 300 328 v1.8.1 and ETSI EN 301 893 v1.7.1

Page 2: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Why is Regulation necessary?

2

radiated electromagnetic waves as

Radio Frequencies are

limited natural resources therefore usually the usage of electromagnetic waves

is

right of the state 0 Hz Radio Spectrum Management and Protection 400 Ghz

ITU

used by government: military applications

used by others: non-military applications

Regulation

Page 3: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Regulation of the Internal Market by European Directives

3

72/245/EEC Motor vehicles 73/23/EEC "Low voltage directive"

78/404/EEC Simple pressure containers

88/378/EEC Toy safety

89/106/EEC Building products

89/336/EEC, 92/31/EEC 2004/108/EEC Electromagnetic compatibility 89/392/EEC, 91/368/EEC Machines

89/686/EEC Personal protective equipment

90/384/EEC Non-automatic scales

90/385/EEC Active implantable medical devices

90/396/EEC Gas regulating devices

92/61/EEC two- or three-wheel motor vehicles

1999/5/EEC R&TTE directive (Radio Equipment and Telecommunications terminal equipment)

92/42/EEC Efficiency of hot water boilers

93/42/EEC Medical devices

93/97/EEC Satellite radio devices

Page 4: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

R & TTE Directive Article 3(2)

4

EMC

Page 5: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Manufacturers’ responsibilities under the R&TTE Directive

5

Key Words o Effective use of spectrum o Avoidance of harmful interference

Essential Radio Tests for “effective use of spectrum” • Modulation accuracy • Data transfer rates • Robustness inside use environment

Essential Radio Tests for “avoiding harmful interference” • Power restrictions • Spectrum restrictions (BW and “leakage”) • Sharing of the resource

Page 6: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Tests to achieve the aims of Article 3.2 ı Space Distance covered by a certain power level Antenna assembly gain Beamforming gain

ı Time Duty Cycle, Dwell time TxOn times, TxOff time Tx-sequence Tx-gap

ı Frequency Power Spectral Density Frequency occupation / timing / accuracy (frequency hopping radios)

ı Organizational R&TTE Directive references the List of Harmonised Standards

6

Page 7: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

European Harmonized Standards

7

Page 8: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Specific Standards Issued

8

Page 9: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Version Turn – Effective Date January 1, 2015

9

Version Turn with major changes to conformance tests

+ Old Version equipment required

New Version equipment required

New Version requires testing for “Adaptivity” (LBT, DAA) and summation of MIMO transmission power

Page 10: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

ETSI EN 300 328

10

ETSI EN 300 328 V1.8.1 (2012-06)

Electromagnetic compatibility and Radio spectrum Matters (ERM); Wideband transmission systems;

Data transmission equipment operating in the 2,4 GHz ISM band and

using wide band modulation techniques; Harmonized EN covering the essential requirements

of article 3.2 of the R&TTE Directive

Page 11: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

ETSI EN 300 328 – Wide Band Data Transmission

11

Examples of Wide Band Data Transmission equipment are:

l IEEE 802.11™ RLANs [i.3], l Bluetooth® wireless technologies, l Zigbee™, etc.

This equipment can be used in fixed, mobile or nomadic applications, e.g.:

l stand-alone radio equipment with or without their own control provisions; l plug-in radio devices intended for use with or within a variety of host

systems, e.g. personal computers, hand-held terminals, etc.; l plug-in radio devices intended for use within combined equipment, e.g.

cable modems, set-top boxes, access points, etc.; l combined equipment or a combination of a plug-in radio device and a

specific type of host equipment.

Radio equipment operating in the band 2.4 GHz to 2.4835 GHz

Page 12: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Structure of ETSI EN 300 328

12

Frequency Hopping

Everything Else (fixed frequency)

Page 13: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Frequency Hopping Radio Tests

13

Power Control Tests

Frequency Control Tests

Spurious Tests

Interoperability Tests

Adaptive – Coexistence Tests

Page 14: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Fixed Frequency Radio Tests

14

Power Control Tests

Spurious Tests

Interoperability Tests

Adaptive – Coexistence Tests

Page 15: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Test Definitions – Power and Frequency Tests ı RF output power is mean equivalent isotropic radiated power (EIRP) during a

transmission burst on all antennas (including gain, beam-forming and MIMO can’t exceed 20 dBm)

ı Duty Cycle is the total transmitter 'on'-time inside a 1 second observation time (burst duty cycle for fixed and hopping frequency cycle for hoppers)

ı Tx-sequence is the period during which a single or multiple transmissions may occur and which shall be followed by a Tx-gap

ı Tx-gap is a period in time during which no transmissions occur.

15

Page 16: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Test Definitions – Power and Frequency Tests ı Occupied Channel Bandwidth is the bandwidth that contains 99 % of the power

ı Power Spectral Density is mean equivalent EIRP spectral density during the burst (maximum PSD is limited to 10 dBm per MHz)

16

Page 17: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

ı Dwell Time that a hopping frequency is occupied during a single hop

ı Minimum Frequency Occupation Time is the minimum time each hopping frequency shall be occupied within a given period.

ı Hopping Sequence is the unrepeated pattern of the hopping frequencies

ı Hopping Frequency Separation is the frequency separation between 2 adjacent hop frequencies.

17

Additional Tests for Frequency Hopping Radios

Page 18: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Medium Utilization – must play nice with the other kids ı The Medium Utilization (MU) factor is a measure to quantify the amount of

resources (Power and Time) used by non-adaptive equipment. The Medium Utilization factor is defined by the formula:

MU = (P/100 mW) × DC where: MU is Medium Utilization factor in %. P is the RF output power expressed in mW. DC is the Duty Cycle expressed in %.

NOTE: The equipment may have dynamic behavior with regard to duty cycle and corresponding power level. See clause (5.3.1 e).

18

Page 19: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Annex A: Crib Notes for EN 300 328

19

Frequency Time BW

Spurious Emissions Test

Page 20: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Transmitter Spurious Emissions Test

20

Page 21: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Receiver spurious emissions

ı Receiver spurious emissions are emissions at any frequency when the equipment is in receive mode (transmitter is turned off during test).

21

Page 22: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Adaptivity / Coexistence Tests

22

Adaptivity / Coexistence

Page 23: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

EN 300 328 Technical requirements for Adaptivity A Device must adapt to is operating environment if: ı The EIRP is higher than 10 dBm (violates space restriction) and / or ı The MU is higher than 10% (violates time restriction) Other tests may still fail, but are often caused by the test mode of the DUT

Devices adapt by detect(ing) and avoid(ing) (DAA) other transmitters The access point (AP) will use energy detection to “look” for competing signals Called Clear Channel Assessment (CCA) Must switch to adaptive mode if finds energy Must command clients to deal with switch to adaptive mode Must keep checking, and adjust again as needed

23

Page 24: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

EN 300 328 Technical requirements for Adaptivity Buzzword and Acronym Review (Bostonian version) EIRP = equivalent isotropic radiated power (don’t hog my space, bro) MU = medium utilization (don’t hog my time, yo) CCA = clear channel assessment (hello, do yous guys see me out here) DAA = detect and avoid (then do something already) LBT = Listen before talk Full process of playing nice in the ISM band. Standard wants devices to listen, and make spectrum or transmission time slots unavailable when other signals are present

OEMs can call it something else, but either you restrict your transmission rates or power all the time, or must be adaptive and restrict them when another transmitter is detectable

24

Page 25: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Receiver Blocking Test

Definition: ı Receiver blocking is a measure of the capability of the Adaptivity mechanism to

operate as intended in the presence of an unwanted signal (blocking signal) on frequencies other than those of the operating channel and the adjacent channels.

27

Page 26: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

ETSI EN 300 328 Annexes

28

Page 27: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

ETSI EN 300 328 Annex E Application form for testing

29

Page 28: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

EN 301 893 v 1.7.1 For 5 GHz Band

ı Same general tests but with different limits

ı Implements Transmit Power Control for non-continuous bands

ı Must use Dynamic Frequency Selection (DFS) Sense and avoid Doppler weather radar If sees 5 GHz signals must abandon channel

ı Adaptivity reserved for other RLANs Time delay to get clear channel

30

Page 29: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Channel Availability Check for Radar

31

Page 30: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Clear Channel Assessment for other WLANs

32

Page 31: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Insider Info: EN 300 328 V1.9.1

ı Now the bad news ı WiFi OEM’s aren’t happy with changes Didn’t pay attention, industrial automation OEMs shaped the standard

ı WiFi OEMs have “shaped” a version 1.9.1 up for vote that makes many

of these tests “optional” ı Both versions could issue Jan 1, 2015 (V1.8.1 comes in force in 2015)

ı So all this may not really matter if the WiFi OEMs have their way

ı Will be interesting to see outcome

33

Page 32: ETSI EN Standards Update ISM band wireless … EN Standards Update ISM band wireless devices 2.4 GHz and 5 GHz band . Harmonized Standards: ... PowerPoint-Präsentation Author: Bach,Volker,00001623

Lane Change Assist

34

Collision Avoidance

The Future? 802.11P Car-to-Car Communication