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Proposed Modifications in TGh Draft Proposal

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Presentation on theme: "Proposed Modifications in TGh Draft Proposal"— Presentation transcript:

1 Proposed Modifications in TGh Draft Proposal
March 2002 doc.: IEEE /216r0A March 2002 Proposed Modifications in TGh Draft Proposal Amjad Soomro Amjad Soomro, Philips Amjad Soomro, Philips

2 Introduction Current Mechanism Issues Proposed Changes Conclusions
March 2002 Introduction Current Mechanism Issues Proposed Changes Conclusions Amjad Soomro, Philips

3 The Current Mechanism Channel Switch Announcement Element
March 2002 The Current Mechanism Channel Switch Announcement Element Switch Immediately Do channel switch later STA implementation specific MIB attributes included to quiet the channel after sometime Amjad Soomro, Philips

4 March 2002 The Issue AP may desire to do channel switch later, however, regulators may require it to stop transmissions immediately. The only possible way now is to do switch immediately. Create potential issue of several STAs not hearing this announcement. Amjad Soomro, Philips

5 March 2002 The Proposed Solution Modify the current Channel Switch Announcement Element as: Add field: Switch Mode Element ID (1 octet) Length (1 octets) New Channel Number (1 octet) Channel Switch Count (2 octets) Mode (1 octet) Q Reserved bit Amjad Soomro, Philips

6 Bit Field Interpretations
March 2002 Bit Field Interpretations Q: Quiet Mode When this bit is set, all STAs receiving this frame in the BSS shall immediately stop transmitting in the current channel. Amjad Soomro, Philips

7 March 2002 2 - Current Basic Report Basic, Foreign PLCP Header, Unknown, Primary User, Unmeasured. In performing new channel selection additional channel loading information would avoid potential pitfalls Amjad Soomro, Philips

8 Add Measurement ID CCA Request Definition Measurement ID = 1
March 2002 Add Measurement ID CCA Request Measurement ID = 1 Definition If CCA Report was requested in the Measurement Request, the CCA Busy Fraction Measurement report is reported back, if supported. It is calculated as CCA Busy Fraction = Ceiling (255 ´ [CCA Busy Period] / [Total Measurement Duration]) Amjad Soomro, Philips

9 Add Measurement ID Simple to implement Optional to include March 2002
Amjad Soomro, Philips

10 Conclusions A simple enhancement to current proposal is proposed
March 2002 Conclusions A simple enhancement to current proposal is proposed No significant added complexity Need for regulatory requirements. Amjad Soomro, Philips

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