Navigation information system

A navigation information system for providing information to a mobile user dependent on the location of the mobile user, the system comprising:

• a mobile communications system having a fixed part and a plurality of mobile parts for communicating with the fixed part,
• each mobile part including means for transmitting to the fixed part a request for guidance information relating to a destination specified by the user of the mobile part and for receiving such guidance information from the fixed part, and
• the fixed part including:
• means for determining the location of a mobile part requesting guidance information,
• means for generating guidance information according to the present location and specified destination of the mobile part, and
• means for transmitting the guidance information so generated to the mobile part,
• whereby information dependent on the location and specified destination of the mobile part is transmitted to the mobile part,
• means for determining the location of the mobile part in relation to a geographical overlay comprising a plurality of discrete predetermined overlay areas, and
• means for transmitting guidance information associated with an overlay area which includes the location of at least one mobile part,
• whereby mobile parts within that overlay area simultaneously receive the same guidance information associated with that overlay area,
• means for locating the position of the mobile part by radio location,
• wherein the means for locating position comprises:
• a satellite navigation system receiver, and
• means for identifying the location of the mobile part in relation to elements of the fixed part of the communications system.

A navigation information system for providing information to a mobile user dependent on the location of the mobile user, the system comprising:

• a mobile communications system having a fixed part and a plurality of mobile parts for communicating with the fixed part,
• each mobile part including means for transmitting to the fixed part a request for guidance information relating to a destination specified by the user of the mobile part and for receiving such guidance information from the fixed part, and
• the fixed part including:
• means for determining the location of a mobile part requesting guidance information,
• means for generating guidance information according to the present location and specified destination of the mobile part, and
• means for transmitting the guidance information so generated to the mobile part,
• whereby information dependent on the location and specified destination of the mobile part is transmitted to the mobile part,
• means for determining the location of the mobile part in relation to a geographical overlay comprising a plurality of discrete predetermined overlay areas, and
• means for transmitting guidance information associated with an overlay area which includes the location of at least one mobile part,
• whereby mobile parts within that overlay area simultaneously receive the same guidance information associated with that overlay area, and
• means for locating the position of the mobile part by radio location and comprising at least one of:
• (a) a satellite navigation system receiver, and
• (b) means for identifying the location of the mobile part in relation to elements of the fixed part of the communications system.

A navigation information system

• for providing information to a mobile user dependent on the location of the mobile user, the system comprising:
• a mobile communications system having a fixed part and a plurality of mobile parts for communicating with the fixed part,
• each mobile part including means for transmitting to the fixed part a request for guidance information relating to a destination specified by the user of the mobile part and for receiving such guidance information from the fixed part, and
• the fixed part including:
• means for determining the location of a mobile part requesting guidance information,
• means for generating guidance information according to the present location and specified destination of the mobile part, and
• means for transmitting the guidance information so generated to the mobile part,
• whereby information dependent on the location and specified destination of the mobile part is transmitted to the mobile part,
• means for determining the location of the mobile part in relation to a geographical overlay comprising a plurality of discrete predetermined overlay areas, and
• means for transmitting guidance information associated with an overlay area which includes the location of at least one mobile part,
• whereby mobile parts within that overlay area simultaneously receive the same guidance information associated with that overlay area,
• wherein the mobile part has means for location its position by dead reckoning.

A navigation information system

• for providing information to a mobile user dependent on the location of the mobile user, the system comprising:
• a mobile communications system having a fixed part and a plurality of mobile parts for communicating with the fixed part,
• each mobile part including means for transmitting to the fixed part a request for guidance information relating to a destination specified by the user of the mobile part and for receiving such guidance information from the fixed part, and
• the fixed part including:
• means for determining the location of a mobile part requesting guidance information,
• means for generating guidance information according to the present location and specified destination of the mobile part, and
• means for transmitting the guidance information so generated to the mobile part,
• whereby information dependent on the location and specified destination of the mobile part is transmitted to the mobile part,
• means for determining the location of the mobile part in relation to a geographical overlay comprising a plurality of discrete predetermined overlay areas, and
• means for transmitting guidance information associated with an overlay area which includes the location of at least one mobile part,
• whereby mobile parts within that overlay area simultaneously receive the same guidance information associated with that overlay area,
• wherein the fixed part includes means for generating and maintaining guidance data based on vehicle movement data derived from time information and position measurements of a plurality of the mobile parts and estimations of future locations of the mobile parts based on the guidance information previously transmitted to the mobile parts.

A navigation information system for providing information to a mobile user dependent on the location of the mobile user, the system comprising:

• a mobile communications system having a fixed part and a plurality of mobile parts for communicating with the fixed part,
• each mobile part including means for transmitting to the fixed part a request for guidance information relating to a destination specified by the user of the mobile part and for receiving such guidance information from the fixed part, and
• the fixed part including:
• means for determining the location of a mobile part requesting guidance information,
• means for generating guidance information according to the present location and specified destination of the mobile part, and
• means for transmitting the guidance information so generated to the mobile part,
• whereby information dependent on the location and specified destination of the mobile part is transmitted to the mobile part,
• means for determining the location of the mobile part in relation to a geographical overlay comprising a plurality of discrete predetermined overlay areas, and
• means for transmitting guidance information associated with an overlay area which includes the location of at lest one mobile part,
• whereby mobile parts within that overlay area simultaneously receive the same guidance information associated with that overlay area,
• wherein the fixed part includes means for generating and maintaining guidance data based on at least one of:
• (a) vehicle movement data derived from time information and position measurements of a plurality of the mobile parts, and
• (b) estimations of future locations of the mobile parts based on the guidance information previously transmitted to the mobile parts.

A navigation information system for providing information to each of plural mobile users dependent on their locations, the system comprising:

• means for determining the location of a mobile part requesting guidance information relating to a specified destination,
• means for generating information for guidance of the user of a mobile part according to the present location and specified destination of the mobile part, and
• a communications system for transmitting the guidance information so generated to the mobile part,
• whereby guidance information dependent on the present location and specified destination of the mobile part is transmitted to the mobile part,
• means for determining the location of a mobile part in relation to a geographical overlay comprising a plurality of discrete predetermined overlay areas, and
• means for transmitting guidance information associated with an overlay area which includes the location of at least one mobile part,
• whereby mobile parts within that overlay area simultaneously receive the same guidance information associated with that overlay area.

A mobile unit for a navigation information system, said mobile unit comprising:

• means for identifying the present position of the mobile unit,
• means for transmitting, over a communications link, a request for guidance to a specified destination, and
• guidance instruction means controllable by guidance instruction information received over the communications link and associated with one of a plurality of discrete predetermined geographical overlay areas containing said present position,
• whereby guidance instructions between the present location and the specified location are communicated to a user by means of the guidance instruction means.

A method of providing navigation guidance information to mobile parts of a mobile radio system, the information being dependent on the locations of the mobile parts, the method comprising the steps of:

• transmitting, from a mobile part to the fixed part, a request for navigation guidance to a specified destination,
• determining the location of the mobile part;
• generating guidance information on the basis of the location information, the requested destination, and navigation data stored in the fixed part;
• and
• transmitting the guidance information from the fixed part to the mobile part;
• whereby guidance information relevant to the present location and specified destination of the mobile part is transmitted to the mobile part;
• determining the location of the mobile part in relation to a geographical overlay comprising a plurality of discrete predetermined overlay areas,
• generating guidance information associated with an overlay area which includes the location of at least one mobile part, and
• transmitting guidance information associated with the relevant overlay area to mobile parts within that overlay area,
• whereby mobile parts within that overlay area simultaneously receive the same guidance information associated with that overlay area.

A method of providing navigation guidance information to mobile parts of a mobile radio system, the information being dependent on the locations of the mobile parts, the method comprising:

• transmitting, from a mobile part to the fixed part, a request for navigation guidance to a specified destination,
• determining the location of the mobile part;
• generating guidance information on the basis of the location information, the requested destination, and navigation data stored in the fixed part;
• and
• transmitting the guidance information from the fixed part to the mobile part;
• whereby guidance information relevant to the present location and specified destination of the mobile part is transmitted to the mobile part;
• determining the location of the mobile part in relation to a geographical overlay comprising a plurality of discrete predetermined overlay areas,
• generating guidance information associated with an overlay area which includes the location of at least one mobile part, and
• transmitting guidance information associated with the relevant overlay area to mobile parts within that overlay area,
• whereby mobile parts within that overlay area simultaneously receive the same guidance information associated with that overlay area,
• wherein the position of the mobile part is identified by a radio location method, and
• wherein the position of the mobile part is determined by means of a satellite navigation system and by identifying the location of the mobile part in relation to elements of the fixed part of the communications system.

A method of providing navigation guidance information to mobile parts of a mobile radio system, the information being dependent on the locations of the mobile parts, the method comprising:

• transmitting, from a mobile part to the fixed part, a request for navigation guidance to a specified destination,
• determining the location of the mobile part;
• generating guidance information on the basis of the location information, the requested destination, and navigation data stored in the fixed part;
• and
• transmitting the guidance information from the fixed part to the mobile part;
• whereby guidance information relevant to the present location and specified destination of the mobile part is transmitted to the mobile part;
• determining the location of the mobile part in relation to a geographical overlay comprising a plurality of discrete predetermined overlay areas,
• generating guidance information associated with an overlay area which includes the location of at least one mobile part, and
• transmitting guidance information associated with the relevant overlay area to mobile parts within that overlay area,
• whereby mobile parts within that overlay area simultaneously receive the same guidance information associated with that overlay area,
• wherein the mobile part identifies its position by dead reckoning.

A method of providing navigation guidance information to mobile parts of a mobile radio system, the information being dependent on the locations of the mobile parts, the method comprising:

• transmitting, from a mobile part to the fixed part, a request for navigation guidance to a specified destination,
• determining the location of the mobile part,
• generating guidance information on the basis of the location information, the requested destination, and navigation data stored in the fixed part, and
• transmitting the guidance information from the fixed part to the mobile part;
• whereby guidance information relevant to the present location and specified destination of the mobile part is transmitted to the mobile part;
• determining the location of the mobile part in relation to a geographical overlay comprising a plurality of discrete predetermined overlay areas,
• generating guidance information associated with an overlay area which includes the location of at least one mobile part, and
• transmitting guidance information associated with the relevant overlay area to mobile parts within that overlay area,
• whereby mobile parts within that overlay area simultaneously receive the same guidance information associated with that overlay area,
• generating and maintaining data based on vehicle movement data derived from time information and position measurements of a plurality of the mobile parts and estimations of future locations of the mobile parts based on the guidance information previously transmitted to the mobile parts.

A method of providing navigation guidance information to mobile parts of a mobile radio system, the information being dependent on the locations of the mobile parts, the method comprising:

• transmitting, from a mobile part to the fixed part, a request for navigation guidance to a specified destination,
• determining the location of the mobile part;
• generating guidance information on the basis of the location information, the requested destination, and navigation data stored in the fixed part;
• and
• transmitting the guidance information from the fixed part to the mobile part;
• whereby guidance information relevant to the present location and specified destination of the mobile part is transmitted to the mobile part;
• determining the location of the mobile part in relation to a geographical overlay comprising a plurality of discrete predetermined overlay areas,
• generating guidance information associated with an overlay area which includes the location of at least one mobile part, and
• transmitting guidance information associated with the relevant overlay area to mobile parts within that overlay area,
• whereby mobile parts within that overlay area simultaneously receive the same guidance information associated with that overlay area, and
• including at least one of:
• (a) generating and maintaining data based on vehicle movement data derived from time information and position measurements of a plurality of the mobile parts and
• (b) estimations of future locations of the mobile parts based on the guidance information previously transmitted to the mobile parts.