Abstract: This invention relates to a broadcasting system/method where a broadcasting signal is encoded on the basis of one or more region codes. During decoding a decryption key and/or a pay-mode key is used where the keys is dependent on a region code representing a physical location of a receiver. In this way, a simple, reliable and efficient way of enabling region dependent broadcasting is obtained. Further, it is possible to have different pay modes dependent on a physical location or region. Additionally, the pay modes may be changed dynamically since only the associations between the region codes and the pay-modes need to be updated.

Abstract: In self-organizing networks, broadcasts comprising presence information, referred to as beacons, are the default mechanism in finding neighboring information, i.e. information on which devices are present in the network of a given device. Such beacons are transmitted periodically from each device. A device has knowledge of the presence of other devices in the network when it receives beacons from them. The method of the invention suggests that a device could skip its subsequent scheduled beacon if all its neighboring devices have received a previous beacon during the same period.

Abstract: A method for reducing the load on a mail server (202) of a mail system. Uses information about users' schedule and/or habits in order to evaluate whether or not a user is likely to be at his/her desk at a specific time. E-mail is only retrieved from server if it is likely that the user is at his/her desk and thereby likely to read the e-mail. May use information from calendar entries in electronic calendars. Reduces the load on the server without reducing the service provided to the users. May further be used to prune e-mail so that some e-mails may be deleted or deferred.

Abstract: An “access point” data terminal device is positioned at or incorporated into a display or acting as a standalone device accessible to a user transporting a portable computing device. A short-range communication link is provided by an IrDA infrared transceiver, or a Bluetooth radio transceiver, or both, to permit data and programs to be exchanged between the access point and nearby portable computing devices. The access point is provided with a program installation mechanism that is manually operable by the user when the portable computing device is positioned near the access point to download and install application software which programs the portable computing device to utilize the services made available at the access point.