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Notification of reduced wireless bandwidth Disclosure Number: IPCOM000005042D
Original Publication Date: 2001-Aug-01
Included in the Prior Art Database: 2001-Aug-01
Document File: 2 page(s) / 178K

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Hema Tayi: AUTHOR [+1]


Notification of reduced wireless bandwidth

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Notification of reduced wireless bandwidth

Hema Tayi, Jheroen Dorenbosch. PF02243NA

Future wireless system will provide high bandwidth services locally via picocells. This allows mobile users to receive or send huge files with short latency and at low cost. However, a user may move out of the coverage of a picocell without knowing it. If this happens while a lage file is being transferred, this may lead to unexpected high latency or cost.

Figure 1. An MS may move out of an area covered by high-bandwidth picocells into an area that only has low bandwidth. This may severely impact the user's services by increasing latency. It may also lead to unexpectedly large bills.

A way to prevent such surprises is to let the mobile device warn the user of the reduced bandwidth when a mobile device (MS) moves from a picocell into a lower bandwidth area.

1. The MS monitors the system and detects that it moved from an area with high bandwidth into an area with significantly lower bandwidth.

2. The MS detects that it is involved in an operation that still requires the transfer of a large amount of data.

3. The MS notifies the user and displays a menu with one or more of the following options: Continue, Quit, Defer, Map, Details (Figure 2).

The user can then pick one of the options.

Choosing the option "Continue" will continue the transfer.

Choosing "Quit" stops the transfer and avoids the high bill.

Choosing "Defer" defers the transfer at low bandwidth and will resume when higher bandwidth again becomes available.

Choosing "Map" displays a map with nearby picocells (Figure 3).

Choosing "Details" gives the user details about transfer duration and expected cost.

Figure 2. The MS detects that it moves from a high- to a low-bandwidth area while a large amount of data is being transferred. In that case the MS warns the user and offers a number of options.

Figure 3. Example Map. The map displays the current location of the user and nearby picocells. The user can then move back to a picocell