1. Interference and Co-existence Issues of EUHT network
Month Year
doc.: IEEE yy/xxxxr0
Sept 2013
Interference and Co-existence Issues of EUHT network
Date:
Authors:
Liu Shenfa et al (Nufront)
John Doe, Some Company

2. Month Year
doc.: IEEE yy/xxxxr0
Sept 2013
Abstract
This proposal describes the Interference scenarios in EUHT networks, and the co-existence scenario of IEEE based WLAN and EUHT networks
The presentation provides the interference management issues for EUHT networks
The presentation shows the co-existence scenarios for IEEE and EUHT
Liu Shenfa et al (Nufront)
John Doe, Some Company

3. Month Year
doc.: IEEE yy/xxxxr0
Sept 2013
Introduction
EUHT has been published as Chinese industrial standard in Feb, 2012
EUHT can be used in 2.4GHz or 5.8GHz ISM band
5GHz band :
5150~5350 MHz
Open for systems with tx power < 200mW, indoor applications only
5470 ~ 5725 MHz
Still under discussion
5725 ~ 5850 MHz
Apply before deployment
Liu Shenfa et al (Nufront)
John Doe, Some Company

4. Interference management in EUHT networks
Sept 2013
Interference management in EUHT networks
Multichannel OFDM is used on the EUHT PHY
Large number of CAPs / STAs is expected in EUHT
Interference management issue is important with the increasing “cells” in EUHT networks
Two Interference Scenarios are presented.
Interference between synchronized EUHT System
Interference between non-synchronized EUHT System
Liu Shenfa et al (Nufront)

5. Interference between synchronized EUHT System
Sept 2013
Interference between synchronized EUHT System
Synchronized EUHT cells with the same frequency have interference between home CAP and neighbor STA
Liu Shenfa et al (Nufront)

6. Interference between non-synchronized EUHT System
Sept 2013
Interference between non-synchronized EUHT System
Non-Synchronized EUHT cells with the same frequency have interference between home CAP and neighbor STA , and between the CAPs and STAs belongs to different cells.
Liu Shenfa et al (Nufront)

7. Coexistence Scenario of IEEE 802.11 and EUHT
Month Year
doc.: IEEE yy/xxxxr0
Sept 2013
Coexistence Scenario of IEEE and EUHT
Co-existence interference analysis
Liu Shenfa et al (Nufront)
John Doe, Some Company

8. Interference between EUHT network and IEEE 802.11 network
Sept 2013
Interference between EUHT network and IEEE network
The existence of EUHT network will decrease the successful rate of CSMA, and decrease the capacity of IEEE network. Obviously, EUHT system will occupy more time slot.
Liu Shenfa et al (Nufront)

9. Sept 2013
Conclusions
Fairness concepts and policies are required for co-existence
Currently, can’t guarantee good co-existence performance
The typical interference scenarios in which IEEE and EUHT systems are operated on the same and adjacent frequency bands need to be addressed
Liu Shenfa et al (Nufront)

10. References 11-13-0595-00-0000-introduction-of-EUHT-r1 Sept 2013
Month Year
doc.: IEEE yy/xxxxr0
Sept 2013
References
introduction-of-EUHT-r1
Liu Shenfa et al (Nufront)
John Doe, Some Company

11. Thank you! Sept 2013 Month Year doc Liu Shenfa et al (Nufront)
John Doe, Some Company