1. Month Year
doc.: IEEE yy/xxxxr0
Proposed Dynamic Channel Transfer(DCT) procedure for IEEE aj (60GHz)
Date:
Presenter:
Jiamin Chen, Huawei
John Doe, Some Company

2. Author List
Jiamin Chen, Huawei

3. Abstract
This document is to propose a MAC mechanism to support dynamic channel transfer procedure (DCT) for aj (60GHz)
This contribution has been discussed in CWPAN group
Jiamin Chen, Huawei

4. Background Proposed Channelization for 60GHz bands for 802.11aj
Month Year
doc.: IEEE yy/xxxxr0
Background
Proposed Channelization for 60GHz bands for aj
There are 6 logical channels: 2 bands with 2.16GHz bandwidth (Channel 2 & 3), 4 bands with 1.08GHz bandwidth (Channel 5, 6, 7, 8);
This proposed channelization Supports more than 3 logical channels for aj and keeps the backward compatibility with ad device；
Channelization for 60GHz bands in China
Jiamin Chen, Huawei
John Doe, Some Company

5. Dynamic Channel Transfer(DCT) procedure for IEEE 802.11aj(60GHz) (1/2)
Sept 2012
doc.: IEEE /xxxxr0
Dynamic Channel Transfer(DCT) procedure for IEEE aj(60GHz) (1/2)
Some cases (Case 1 to Case 3): Request an existing PCP/AP to another vacant channel to allow other IEEE aj PCP/AP to establish a new BSS.
Case 1 (Channel 6, 8 are occupied by existing BSS-1 and BSS-2 at 1.08GHz)
New STA (to become PCP/AP-3) wants to start a new BSS-3 at 2.16GHz
PCP/AP-3 request BSS-1 on channel 6 to move to channel 7, or request BSS-2 on channel 8 to move to channel 5
PCP/AP-1 or PCP/AP-2 shall assess the request against its capabilities and the impact on its BSS’s performance
PCP/AP-1 or PCP/AP-2 may refuse the request
If the request is confirmed, PCP/AP-3 may has a chance to use channel 2 or channel 3
Case 2 / 3 are similar to Case 1
Jiamin Chen, Huawei
Xiaoming Peng / I2R

6. Dynamic Channel Transfer(DCT) procedure for IEEE 802.11aj(60GHz) (2/2)
Sept 2012
doc.: IEEE /xxxxr0
Dynamic Channel Transfer(DCT) procedure for IEEE aj(60GHz) (2/2)
Public action frame in spec
Inter-BSS and AP to unassociated-STA communications
Intra-BSS communication and so on
Proposed new public action frame for the DCT procedure:
DCT Measurement Request frame
Requesting one or more STAs in the DCT responder PCP/AP’s BSS（PBSS or Infrastructure BSS）to measure a specified channel or all other channels within supported operating class.
DCT Measurement Report frame
Transmitting from the DCT responder PCP/AP to the DCT requester PCP/AP to report the result of channel measurement or refuse the DCT request.
DCT Request frame
Requesting DCT responder PCP/AP’s BSS to move to an available channel reported in the DCT Measurement Report frame.
DCT Response frame
Transmitting from the DCT responder PCP/AP to the DCT requester PCP/AP to confirm or refuse the DCT request.
Jiamin Chen, Huawei
Xiaoming Peng / I2R

7. Conclusion
This presentation propose a mechanism referred to as Dynamic Channel Transfer .It can improve the network flexibility and channel efficiency for aj(60GHz), if the existing idle channel could not satisfy the networking requirements for the aj STA (to become PCP/AP).
Jiamin Chen, Huawei

8. Thank You!
Jiamin Chen, Huawei