Questions on the network detection
- To: STDS-802-21@listserv.ieee.org
- Subject: Questions on the network detection
- From: Liang Chen <leo.liang.chen@gmail.com>
- Date: Mon, 7 Nov 2005 18:57:57 +0800
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- Sender: stds-802-21@ieee.org
Dear all,
802.21/D00.01 draft describes an mechanism for the vertical handover decision in Sec. 6.3. With the help of networking location information boardcast in any medium supported by 802.21, STA could aware the surrounding networks before handover. However, I guess there are some problems in the real scenarios.
1. Due to the cheap deployment cost of 802.11 AP, users may want to deploy the 802.11 hot-spot in their office or home independently and without the notification to the WWAN operators. When a user moves to their home/office from outsides, how user's STA know there is a
802.21 supporting WiFi AP from the location information boardcast by WWAN.
2. How STA locates itself in the wireless networks map? GPS may not work in-door and increase the cost.
Moreover, I am a little confused on the different benefits of network-initiated and MN-initiated handover mentioned in Set. 5.2.
Best regards,
-Liang Chen