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Date: 2012- 05-14

Overview of CWPAN SG5 QLINKPAN. Date: 2012- 05-14. Authors:. Contents. CWPAN SG5 Q-LINKPAN Relationship between IEEE 802.11 CMMW and Q-LINKPAN Updated information for the spectrum allocation. Updated Information for the Spectrum Allocation in May meeting. Final Request.

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Date: 2012- 05-14

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  1. Overview of CWPAN SG5 QLINKPAN Date: 2012-05-14 Authors: Haiming Wang, Xiaoming Peng

  2. Contents CWPAN SG5 Q-LINKPAN Relationship between IEEE 802.11 CMMW and Q-LINKPAN Updated information for the spectrum allocation Haiming Wang, XiaomingPeng

  3. Updated Information for the Spectrum Allocation in May meeting Final Request Fig.1. Transmit mask • 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 • Bandwidth (B0) • Transmit mask: Refer to IEEE 802.11ad • TX power: < +20 dBm (Antenna port) • Frequency tolerance: 100×10-6

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

  5. 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 Haiming Wang, Xiaoming Peng

  6. Request of Spectrum Allocation in 40~50GHz • 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 GHzhas been allocated to the amateur radio. • Q-LINKPAN-L uses licensed bands • Q-LINKPAN-S uses unlicensed band Haiming Wang, Xiaoming Peng

  7. Maximum EIRP Density Table I: EIRP Density Limitation • 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. Haiming Wang, Xiaoming Peng

  8. Spectrum Mask Haiming Wang, Xiaoming Peng

  9. 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. Haiming Wang, Xiaoming Peng

  10. Applications of Q-LINKPAN-L (LINK) Point to Point • High gain antenna with very narrow beamwidth for both Point to Multipoint • Sector antenna for BS and narrow beamwidth antenna for UE Haiming Wang, Xiaoming Peng

  11. Channel Model • The channel model is one of key points for designing a wireless communication system! • 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. • Carrier frequency: Q band, 40~50 GHz • Channel model: • Path loss? ※ • Multipath: Power delay profile (PDP) • Multiple Antennas: spatial correlation • Time-varying channel? Haiming Wang, Xiaoming Peng

  12. Atmospheric Absorption and Rain Attenuation Around 60 GHz Around 60 GHz Around 45 GHz Around 45 GHz Figure 1. Microwave and millimeter-wave atmospheric and molecular absorption [1] Figure 2. Microwave and millimeter-wave rain attenuation [1] • 45 GHz: 0.05~0.3 dB/km • 62 GHz: 4~20 dB/km [1] FCC Bulletin 70, Millimeter Wave Propagation: Spectrum Management Implications, July 1997. Haiming Wang, Xiaoming Peng

  13. Path Loss Path loss measurement results in 60 GHz WPAN systems: High propagation loss is a big challenge in mmWave band! 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. Haiming Wang, Xiaoming Peng

  14. 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 Haiming Wang, Xiaoming Peng

  15. 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. Haiming Wang, Xiaoming Peng

  16. 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. Haiming Wang, Xiaoming Peng

  17. 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. Haiming Wang, Xiaoming Peng

  18. Initial Channel Measurement at Q-band: Multipath PDP S1: Face-to-Face, no block S2: toward to the ceiling • 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. Haiming Wang, Xiaoming Peng

  19. Initial Channel Measurement at Q-band: Multipath PDP 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. Haiming Wang, Xiaoming Peng

  20. Initial Channel Measurement at Q-band: RMS Delay Spread Haiming Wang, Xiaoming Peng

  21. Relationship between IEEE 802.11 CMMW and CWPAN Q-LINKPAN From CWPAN perspective From 802.11 CMMW perspective Haiming Wang, Xiaoming Peng

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