doc.: ieee 802.11-12/0402r2 submission may 2012 haiming wang, xiaoming pengslide 1 date: 2012-05-14...

doc.: IEEE 802.11-12/0402r2

Submission

May 2012

Haiming Wang, Xiaoming PengSlide 1

Date: 2012-05-14

Name Company Address Phone email Haiming Wang Southeast

University No. 2, Sipailou, Nanjing 210096, China

+86-25-8379-3275-219(ext)

[email protected]

Xiaoming Peng Institute for Infocomm Research (I2R)

1 Fusionopolis Way, #21-01 Connexis, Singapore

65-6408-2429

[email protected]

Authors:

Overview of CWPAN SG5 QLINKPAN

doc.: IEEE 802.11-12/0402r2

Submission

Contents

• CWPAN SG5 Q-LINKPAN

• Relationship between IEEE 802.11 CMMW and Q-LINKPAN

• Updated information for the spectrum allocation

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Updated Information for the Spectrum Allocation in May meeting

① After communicating with China Radio Management Authority for a few rounds, it has submitted the final request for the unlicensed band in 43.5-47.0 GHz for approval

② Bandwidth (B0)

③ Transmit mask: Refer to IEEE 802.11ad

④ TX power: < +20 dBm (Antenna port)

⑤ Frequency tolerance: 100×10-6

-20dBr

-25dBr

-30dBr

0.87 1.11 1.67 2.04-0.87-1.11-1.67-2.04 (f-fc)/B0

Fig.1. Transmit mask

Final Request

Slide 3

doc.: IEEE 802.11-12/0402r2

Submission

EIRP Limit in Unlicensed 45 GHz Band (Pending for Final Approval)

Point-to-Multipoint

TX Power at Antenna Port

(dBm)

Maximum Antenna

Gain (dBi)

EIRP (dBm)

20 6 26

17 9 26

14 12 26

11 15 26

8 18 26

5 21 26

2 24 26

Point-to-Point

TX Power at Antenna Port

(dBm)

Maximum Antenna

Gain (dBi)

EIRP (dBm)

20 6 26

19 9 28

18 12 30

17 15 32

16 18 34

15 21 36

14 24 38

13 27 40

12 30 42

11 33 44

10 36 46

In the 45 GHz band and for point-to-point applications, you can

increase the antenna gain to get an EIRP above 26 dBm but for every

3dBi increase of antenna gain you must reduce the transmit power by

1 dBm. The right table shows the combinations of allowed transmit

power / antenna gain and the resulting EIRP.

Slide 4

doc.: IEEE 802.11-12/0402r2

Submission

Overview of Q-LINKPAN

• A study group (SG5) Q-LINKPAN was set up under CWPAN in Sept 2010 to develop the China mmWave standard operating in 40~50GHz

• It can be used both in short range and point-to-point (Q-Band + LINK + PAN)– Short Range: Q-LINKPAN-S

– Point-to-point/Point-to-multipoint: Q-LINKPAN-L

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Request of Spectrum Allocation in 40~50GHz

Q-LINKPAN-L Q-LINKPAN-S Q-LINKPAN-L

40.5~43.334 GHz 43.334~46.918GHz 47.282~50.2 GHz

Request of frequency allocation: 40.5~50.2 GHz; Unlicensed: 43.334~46.918GHz (3.584GHz BW) Licensed: 40.5~43.334GHz (2.834GHz BW), 47.288~50.2GHz

(2.912GHz BW)

The spectrum of 47~47.2 GHz has been allocated to the

amateur radio.

March 2012


• Q-LINKPAN-L uses licensed bands• Q-LINKPAN-S uses unlicensed band

• Q-LINKPAN-L uses licensed bands• Q-LINKPAN-S uses unlicensed band

doc.: IEEE 802.11-12/0402r2

Submission

Maximum EIRP Density• P2P Wireless Equipment

– EIRP: refer to Table I– TX frequency tolerance:

• P2P: ±1ppm；• P2MP:

– Central Station (CS): ±0.05ppm;– Remote Station (RS): ±1ppm.

– TX spurious emissions: Satisfy the spectrum mask in the next slide and less than -40dBm/MHz out-of-band.

• WPAN Equipment– EIRP: < +20dBm.– TX frequency tolerance: ±1ppm.– TX spurious emissions: Satisfy the

spectrum mask in the next slide and less than -40dBm/MHz out-of-band.

Station Type

Maximum EIRP Density（ dBW/MHz）

Informative assumptions for deriving the EIRP limits

Maximum Power Spectral Density

at antenna port （ dBm/MH

z）

Maximum Antenna

Gain（ dBi）

CS（ P2M

P）+5 +15 20

RS（ P2M

P）+30 +15 45

P2P links

+40 +20 50

Table I: EIRP Density Limitation

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Spectrum Mask

B

± 250% B

Carrier Frequency

Out-of-band spurious emissions (Spectrum Mask)

-30 dBm/1 MHz -30 dBm/1 MHz

± 224 MHz or 450% B (Take max value)

40 GHz 45.5 GHz

-40 dBm/1 MHz -40 dBm/1 MHz

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Applications of Q-LINKPAN-S (PAN)

Capable of reducing power consumption by ~30% compared to 60GHz products

Home, Office, Conference Room, Coffee Bar, Airport, etc.

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Applications of Q-LINKPAN-L (LINK)

Po

int to

P

oin

tP

oin

t to

Mu

ltipo

int

• High gain antenna with very narrow beamwidth for both

• Sector antenna for BS and narrow beamwidth antenna for UE

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Channel Model• Carrier frequency: Q band, 40~50 GHz

• Channel model:① Path loss? ※

② Multipath: Power delay profile (PDP)

③ Multiple Antennas: spatial correlation

④ Time-varying channel?

The channel model is one of key points for designing a wireless communication system!

0 10PL PL 10 logd n d X

※ Haibing Yang, et al., “Channel Characteristics and Transmission Performance for Various Channel Configurations at 60 GHz,” EURASIP Journal on Wireless Communications and Networking, vol. 2007, Article ID 19613, 15 pages, 2007.

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Atmospheric Absorption and Rain Attenuation

• 45 GHz: 0.05~0.3 dB/km• 62 GHz: 4~20 dB/km

Around 60 GHz

Around 45 GHz

Around 45 GHz

Around 60 GHz

Figure 2. Microwave and millimeter-wave rain attenuation [1]Figure 1. Microwave and millimeter-wave atmospheric and molecular absorption [1]

[1] FCC Bulletin 70, Millimeter Wave Propagation: Spectrum Management Implications, July 1997.

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Path Loss

The received power over the travel distance of the first arrived path, when the transmit power is 0 dBm. ※

※ Haibing Yang, et al., “Channel Characteristics and Transmission Performance for Various Channel Configurations at 60 GHz,” EURASIP Journal on Wireless Communications and Networking, vol. 2007, Article ID 19613, 15 pages, 2007.

High propagation loss is a big challenge in mmWave band!High propagation loss is a big challenge in mmWave band!High propagation loss is a big challenge in mmWave band!High propagation loss is a big challenge in mmWave band!

Path loss measurement results in 60 GHz WPAN systems:Path loss measurement results in 60 GHz WPAN systems:

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Initial Channel Measurement at Q-band: Parameters

• Frequency band: 40~43.5 GHz

• Method: VNA Sweep Frequency

• Sweep Frequency Points: 12801

• Sweep Frequency Duration: 300 ms

• TX Power: 20dBm

• Cable Length: 4 m at both ends

• Antenna Type: Horn antenna

• Measurement Scenario: Indoor

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Initial Channel Measurement at Q-band: Scenarios

S1: Horn antennas are face-to-face without block. The TR distance is 3 m and height is 1.15m.

S2: Horn antennas are toward the ceiling without block. The TR distance is 3 m.

• S3: Horn antennas are face-to-face across a glass window door. The TR distance is 3 m and height is 1.15m.

• S4: Horn antennas are face-to-face across a fiberboard door. The TR distance is 3 m and height is 1.15m.

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Initial Channel Measurement at Q-band: Scenarios

S5: Horn antennas face to the bookcase. The transmitted signal is reflected by the bookcase. The TR distance is 3 m and height is 1.15m.

S6: Horn antennas are face-to-face across a concrete wall with thickness 24 cm. The signal loss is greater than 35 dB. The VNA can not receive any signal. So no data have been recorded.

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Initial Channel Measurement at Q-band: Path Loss• The average path loss is about 25 dB at the Tx-Rx

distance 3 m. The dynamic range of received signal is about 35 dB.

4 4.05 4.1 4.15 4.2 4.25 4.3 4.35-80

-70

-60

-50

-40

-30

-20

-10

0

10

Frequency(GHz)

Pow

er L

oss(

dB)

Power in Measurement

ThouS1

S2

S3

S4S5

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Initial Channel Measurement at Q-band: Multipath PDP

10 15 20 25 30 35 40 45 50 55 60-80

-70

-60

-50

-40

-30

-20

-10

0

Sample Time(ns)

Pow

er(d

B)

Normalized Power Delay Profile

0 10 20 30 40 50 60 70-70

-60

-50

-40

-30

-20

-10

0

Sample Time(ns)

Pow

er(d

B)


S1: Face-to-Face, no block

From the results, only the main path component exits in the LoS scenario (S1) and the simple reflection surface (S2) , and the path component at 45 ns is due to the second reflection in the S1.

S2: toward to the ceiling

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Initial Channel Measurement at Q-band: Multipath PDP

0 20 40 60 80 100 120-70

-60

-50

-40

-30

-20

-10

0

Sample Time(ns)

Pow

er(d

B)


0 10 20 30 40 50 60 70-70

-60

-50

-40

-30

-20

-10

0

Sample Time(ns)

Pow

er(d

B)


10 20 30 40 50 60 70 80-60

-50

-40

-30

-20

-10

0

Sample Time(ns)

Pow

er(d

B)


S3: Across a glass window door S4: Across the fiberboard door S5: Reflection by the bookcase

The multipath distribution are different due to the penetrating characteristics between the glass window door and the fiberboard door. There is second reflection component at 60 ns since there is metallic structure in the glass window door. No such phenomenon is observed for the fiberboard door.

There are several multipath components in the scenario S5 since the reflection surface consisting of metallic and non-metallic materials is complex.

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Initial Channel Measurement at Q-band: RMS Delay Spread

Scenario S1 S2 S3 S4 S5

Mean (ns) 2.70 0.38 5.19 0.53 1.22

Min (ns) 2.39 0.32 4.06 0.51 1.15

Max (ns) 2.87 0.40 5.35 0.54 1.24

March 2012


doc.: IEEE 802.11-12/0402r2

Submission

Relationship between IEEE 802.11 CMMW and CWPAN Q-LINKPAN

March 2012


From CWPAN

perspective

From 802.11 CMMW

perspective

doc.: ieee 802.11-12/0402r2 submission may 2012 haiming wang, xiaoming pengslide 1 date: 2012-05-14...

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