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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Detail Introduction of Chinese LR-WPAN Standard (Draft) ] Date Submitted: [May. 2006 ] Source: [Liang Li, Chenyang Yang] Company: [ Vinno Technologies Inc. ]
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Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Detail Introduction of Chinese LR-WPAN Standard (Draft) ] Date Submitted: [May. 2006 ] Source: [Liang Li, Chenyang Yang] Company: [ Vinno Technologies Inc. ] Address: [2 Xinxi St, Building D, Haidian District, Beijing, China 100085 ] Voice:[86-10-139-11895301], E-Mail:[liangli@vinnotech.com, cyyang@buaa.edu.cn] Re: [ IEEE 802.15.4b ] Abstract: [Give the Detail tech info in the Chinese LR-WPAN Standard] Purpose: [To encourage discussion.] Notice: This document has been prepared to assist the IEEE P802.15. 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 acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P802.15. Liang Li, Vinno Technologies Inc. .
The Chinese WPAN Working Group • WEB SITE: www.nits.gov.cn/sc6/wxgyw/default.asp • Chinese WPAN Std WG would open and cooperate with Global STD groups on info, testing procedure, tech development and std documents. • Including: • Low-Rate WPAN Project Group The purpose of Chinese LR-WPAN Std is to provide the tech and testing specs for the wireless transceiver chips, involved in above application markets at the given frequency bands. • High-Rate WPAN Studying Group Liang Li, Vinno Technologies Inc. .
The Scope of Chinese LR-WPAN Standard • The Low-Data Rate WPAN Standard mainly around • TX operation, transmission measurement and co-exist regulation with other devices on permitted frequency bands. • The Spec of Wireless Medium Access Control (MAC) and Physical Layer (PHY) • Security Operation for Chinese WPAN Communication • The testing and evaluation procedure for the devices adopting the Chinese WPAN std. Liang Li, Vinno Technologies Inc. .
The Permitted Operation Frequency Bands of LR-WPAN in Chinese Markets • Radio Management Office of P.R.China (Supervised by Ministry of Info Industry) approved the following frequency bands and TX power limitation for the operation of WPAN equipment • 779 --- 787 MHz, Pt <=10mw (e.i.r.p) • 430 --- 432 MHz, 433 --- 434.79 MHz, BW<=400KHz, Pt <=10mw (e.i.r.p) • Radio Management of P.R.China does not object the ISM frequency band for the operation of WPAN equipment • 2400 --- 2483.5 MHz, Pt <=10mw (e.i.r.p) Liang Li, Vinno Technologies Inc. .
The Promoted Communication Tech in LR-WPAN(1) • The MPSK tech is adopted as the basic modulation of communication in LR-WPAN at less 1Ghz bands. • The Direct Sequence Spread Spectrum (DSSS) tech is applied • 16 orthogonal spreading sequences are designed to map 4 information bits. The base sequence is a 16 length chirp sequence and the other 15 sequences are its cyclic shifts. Liang Li, Vinno Technologies Inc. .
Promoted Communication Tech in LR-WPAN(2) • The Pulse Shaping Filter on I and Q path is designed as: • The Transmit waveform and Spectrum are : Liang Li, Vinno Technologies Inc. .
The Advantages of these Promoted Communication Tech Benefits on Performance of Receiver: • The distinguished Demodulation Performance with the 16 sequences are orthogonal. • The superior ability to overcome the multi-path and frequency offset interruption. Possible Benefits on IC • Low cost on RF IC • Low Power consumption Liang Li, Vinno Technologies Inc. .
Promoted MAC Technologies in LR-WPAN • The spec of MAC layer promoted by Chinese LR-WPAN standard is compatible to the spec of MAC layer of IEEE802.15.4b • Some major modification are added, such as • Modifying the CSMA/CA operation • Extending the SuperFrame structures • The Advantages of the desired MAC layer in Chinese WPAN standard • Enlarge the transmission efficient of Wireless Personal Networks • Support the voice transmission in the Wireless Personal Networks Liang Li, Vinno Technologies Inc. .
Extend Superframe Structure • Add the dedicated Beacons in Superframe In the inactive period, assign the dedicated beacons for the the nodes within the inquire of the higher ratio transmission Liang Li, Vinno Technologies Inc. .
Security • The security procedure of Chinese LR-WPAN may be setup in Q3 or Q4 of 2006. • The possible solutions may be: • One kind of security procedure created by Chinese security expertise, is accepted as one official solution of Chinese LR-WPAN. • The security procedure used in IEEE802.15.4b is also accepted as one option solution of Chinese LR-WPAN. Liang Li, Vinno Technologies Inc. .
Compatible to IEEE802.15.4b • Chinese WPAN Working Group expects the Chinese LR-WPAN standard be compatible to IEEE8021.5.4b at the following points. • The packet frame of Chinese LR-WPAN is similar to ones of IEEE802.15.4b • The Chinese LR-WPAN may reuse the most primitives, their structure and description. • The operation procedure of Chinese LR-WPAN is similar to ones of IEEE802.15.4b • The text of Chinese LR-WPAN is similar to IEEE802.15.4b • Others… Liang Li, Vinno Technologies Inc. .
Cooperation with IEEE802.15 Working Group • Chinese WPAN working group expects to cooperate with IEEE802.15 working group. It benefits to globe LR-WPAN markets • Chinese WPAN group gives the permission to its members to submit the proposal to introduce the Chinese WPAN to IEEE conference. • Chinese WPAN group understands its LR-WPAN standard is compatible to IEEE802.15.4b on important area. • Chinese WPAN group does not object its LR-WPAN Standard is adopted by IEEE802.15 working group. Liang Li, Vinno Technologies Inc. .
Thank You ! Liang Li, Vinno Technologies Inc. .
