Alert content reception apparatus, alert content communications system and method of acquiring alert content

1. A portable electronic processing device for use in a vehicle, comprising:

an alert content reception apparatus comprising: a communications interface compatible with a data broadcast service and a wireless bidirectional data communications service; and a processing resource; and

a memory resource,

the communications interface being arranged to receive broadcast data messages from the data broadcast service, each broadcast data message comprising reference data identifying alert content stored at a remote server apparatus,

the processing resource being arranged to:

analyze a received broadcast data message to determine the reference data;

compare the determined reference data to a list of reference data from previously received broadcast data messages stored in the memory resource; and

generate a request message comprising the reference data for transmittal by the communications interface in response to determining that the reference data has not been previously received, the communications interface being further arranged to: transmit the generated request message via the bidirectional data communications service to retrieve the alert content associated with the reference data in the request message from the remote server apparatus; and receive a reply message from the remote server apparatus via the bidirectional data communications service, the reply message comprising the alert content associated with the reference data in the request message, wherein the retrieved alert content comprises traffic- or travel-related data relevant to a user of the vehicle, and

wherein the processing resource is arranged to at least one of: implement a recalculation of a route to a destination based on the retrieved alert content; and present the retrieved alert content to the user using an output interface of the portable electronic processing device.

2. The portable electronic processing device of claim 1 , further comprising a receiver of location-related data, the receiver being operably coupled to the processing resource, and wherein each broadcast data message comprises geographical indication data identifying a location associated with the alert content, the processing resource being further arranged to:

determine a current location of the portable electronic processing device from received location-related data;

analyze a received broadcast data message to determine the geographical indication data; and

generate the request message in response to determining that the reference data has not been previously received and determining that the location associated with the alert content is within a predetermined distance of the current location of the portable electronic processing device.

3. The portable electronic processing device of claim 1 , further comprising a receiver of location-related data, the receiver being operably coupled to the processing resource, and wherein each broadcast data message comprises geographical indication data identifying a location associated with the alert content, the processing resource being further arranged to:

calculate a route to a destination;

analyze a received broadcast data message to determine the geographical indication data; and

generate the request message in response to determining that the reference data has not been previously received and determining that the location associated with the alert content relates to the calculated route or a remaining part thereof.

4. The portable electronic processing device of claim 1 , wherein the processing resource is further arranged to present the retrieved alert content to a user on a display of the portable electronic processing device.

5. The portable electronic processing device of claim 1 , wherein the data broadcast service comprises a one-to-many messaging service, and wherein the bidirectional data communications service comprise a packet switched data service.

6. The portable electronic processing device of claim 1 , wherein the reference data comprises version data.

7. The portable electronic processing device of claim 1 , wherein each broadcast data message comprises priority data, and the processing resource is arranged to:

determine a level of priority associated with the alert content using the priority data; and

retrieve alert content from the remote server apparatus in an order according to the determined level of priority.

8. A method of acquiring alert content at a portable electronic processing device for use in a vehicle comprising: an alert content reception apparatus comprising: a communications interface compatible with a data broadcast service and a bidirectional data communications service; and a processing resource; and a memory resource, the method comprising:

receiving a broadcast data message from a data broadcast service using the communications interface, each broadcast data message comprising reference data identifying alert content stored at a remote server apparatus;

analyzing, by the processing resource, the received broadcast data message to determine the reference data;

comparing, by the processing resource, the determined reference data to a list of reference data from previously received broadcast data messages stored in the memory resource;

generating, by the processing resource, a request message comprising the reference data in response to determining that the reference data has not been previously received;

transmitting the generated request message via the bidirectional data communications service using the communications interface to retrieve the alert content associated with the reference data in the request message from the remote server apparatus; and

receiving a reply message from the remote server apparatus via the bidirectional data communications service using the communications interface, the reply message comprising the alert content associated with the reference data in the request message, wherein the retrieved alert content comprises traffic- or travel-related data relevant to a user of the vehicle, and

wherein the processing resource is used to at least one of: implement a recalculation of a route to a destination based on the retrieved alert content; and present the retrieved alert content to the user using an output interface of the portable electronic processing device.

9. A non-transitory computer readable storage medium storing instructions that, when executed by a portable electronic processing device for use in a vehicle, cause the portable electronic processing device to perform a method comprising:

receiving a broadcast data message from a data broadcast service using the communications interface, each broadcast data message comprising reference data identifying alert content stored at a remote server apparatus;

analyzing, by the processing resource, the received broadcast data message to determine the reference data;

comparing, by the processing resource, the determined reference data to a list of reference data from previously received broadcast data messages stored in the memory resource;

generating, by the processing resource, a request message comprising the reference data in response to determining that the reference data has not been previously received;

transmitting the generated request message via the bidirectional data communications service using the communications interface to retrieve the alert content associated with the reference data in the request message from the remote server apparatus; and

receiving a reply message from the remote server apparatus via the bidirectional data communications service using the communications interface, the reply message comprising the alert content associated with the reference data in the request message, wherein the retrieved alert content comprises traffic- or travel-related data relevant to a user of the vehicle, and

wherein the processing resource is used to at least one of: implement a recalculation of a route to a destination based on the retrieved alert content; and present the retrieved alert content to the user using an output interface of the portable electronic processing device.