Browse Prior Art Database

A mobile with an electronic diary programmed over the air

IP.com Disclosure Number: IPCOM000004668D
Original Publication Date: 2001-Mar-27
Included in the Prior Art Database: 2001-Mar-27
Document File: 3 page(s) / 23K

Publishing Venue

Motorola

Related People

Wisam Khadhouri: AUTHOR [+2]

Abstract

A mobile handset with a diary that has entries programmed over the air, and which derives time of day from information that is broadcast in a typical digital radio network.

This text was extracted from a Microsoft Word 97 document.
This is the abbreviated version, containing approximately 62% of the total text.

A mobile with an electronic diary programmed over the air

by Wisam Khadhouri, Will Smith

Abstract

A mobile handset with a diary that has entries programmed over the air, and which derives time of day from information that is broadcast in a typical digital radio network.

Problems To Be Solved

Any business that involves delivery of products requires continuous communication and continuous update for the delivery timetable. This is because of the need of this timetable to change everyday, as well as changes during the day.

The same problem faces any person who requires an update to the time at which he/she performs the needed activities.

A GSM mobile handset has the ability to derive the real time and therefore a clock can be implemented on the mobile with an alarm facility. In the case of the TETRA radio, there is a limitation in obtaining the real time and implementing a clock on the mobile. However, due to the fact that the Tetra system has its internal time, it is possible to make use of this time to derive the real time. Using this approach gives the possibility of implementing a clock with an alarm facility on the mobile.

Proposed Solution to the Problems

In both GSM and TETRA systems, the alarm facility can be used in connection with an electronic diary that can also be implemented. As mentioned above, currently an implemented diary on the mobile relies on the user to continuously update it with new information regarding the time at which certain activities should take place. This limitation can be overcome by being able to program this diary directly over the air without the user involvement.

This approach will require partially using the mobile's processor power to update the diary with the new received information. The information can be transmitted from the base station to the mobile as Protocol Data Units (PDUs) or as data packets. It can either be sent on the traffic or on the control channel form a mobile or a console.

This invention will of great use to delivery people as they can rely on the mobile for their delivery schedule of the day, and updating their schedule if there is any change. It may also help religious groups who can rely on the mobile to provide a praying schedule for the day.

It is proposed that a mobile may deduce real time by counting the number of TDMA slot periods that have elapsed since a TDMA slot for which the real time is known. Additionally, it is proposed to use slot count values, which the radio base station must broadcast in some standard TDMA radio systems, to calculate the number of slot periods that have elapsed since a timeslot that occurred at a known real time.

The TETRA standard for TDMA digital radio systems provides an example of a TDMA system where slot count values must be broadcast by the base station. In the TETRA standard, each radio carrier frequency broadcast is time-division multiplexed to four channels, using timeslots of a fixed period. One sequence of four timeslots is known as a frame, a sequence of...