Data transmission

An apparatus comprising

• at least one processor;
• and at least one memory including computer program code, the at least one memory and computer program code configured to, with the at least one processor, cause the apparatus to at least perform:
• determining at least one expected arrival sequence of one or more expected data units to be transmitted over at least one network system;
• determining if at least one of the one or more expected data units does not arrive for transmission over the at least one network system as expected;
• and
• if it is determined that at least one of the one or more expected data units does not arrive for transmission over the at least one network system as expected, increasing transmission reliability of one or more data units adjacent to at least one expected data unit that has not arrived for transmission over the at least one network system as expected.

A method comprising:

• determining at least one expected arrival sequence of one or more expected data units to be transmitted over at least one network system;
• determining if at least one of the one or more expected data units does not arrive for transmission over the at least one network system as expected;
• and
• if it is determined that at least one of the one or more expected data units does not arrive for transmission over the at least one network system as expected, increasing transmission reliability of one or more data units adjacent to at least one expected data unit that has not arrived for transmission over the at least one network system as expected.

A non-transitory computer readable medium comprising program instructions that, when executed by an apparatus, cause the apparatus to perform at least the following:

• determining at least one expected arrival sequence of one or more expected data units to be transmitted over at least one network system;
• determining if at least one of the one or more expected data units does not arrive for transmission over the at least one network system as expected;
• and
• if it is determined that at least one of the one or more expected data units does not arrive for transmission over the at least one network system as expected, increasing transmission reliability of one or more data units adjacent to at least one expected data unit that has not arrived for transmission over the at least one network system as expected.