Communications system and method

A method of storing data indicating a property of a communications network, the method comprising:

• obtaining a stored data item associated with at least part of a spatial region and having an associated spatial parameter and an associated temporal parameter, the stored data item indicating a property of the communications network;
• receiving second data indicating a property of said communications network at a particular location in said spatial region at a particular time;
• and
• processing said spatial parameter, said temporal parameter, data indicating said particular location and data indicating said particular time and, based upon said processing, generating first and second sub-data items, each of said first and second sub-data items having an associated spatial parameter and an associated temporal parameter, at least one of the first and second sub-data items having a spatial or temporal parameter different from that associated with the stored data item;
• wherein said generating first and second sub-data items comprises:
• processing said stored data item indicating a property of the communications network, and said second data indicating a property of said communications network;
• and
• generating said first and second sub-data items based upon said processing;
• wherein said processing said stored data item indicating a property of the communications network comprises:
• comparing said stored data item indicating a property of the communications network, and said second data indicating a property of said communications network;
• and
• generating said first and second sub-data items if said comparison satisfies a predetermined criterion.

A method of storing data indicating a property of a communications network, the method comprising:

• obtaining a stored data item associated with at least part of a spatial region and having an associated spatial parameter and an associated temporal parameter, the stored data item indicating a property of the communications network;
• receiving second data indicating a property of said communications network at a particular location in said spatial region at a particular time;
• and
• processing said spatial parameter, said temporal parameter, data indicating said particular location and data indicating said particular time and, based upon said processing, generating first and second sub-data items, each of said first and second sub-data items having an associated spatial parameter and an associated temporal parameter, at least one of the first and second sub-data items having a spatial or temporal parameter different from that associated with the stored data item,
• wherein said generating said first and second sub-data items comprises:
• generating four sub-data items, the four sub-data items together representing said spatial region and each representing a sub-region of said spatial region;
• wherein a first of said four sub-data items is said first sub-data item and a second of said sub-data items is said second sub-data item;
• and
• wherein a third of said sub-data items and a fourth of said sub-data items are each based upon at least one of said first and second data.