Apparatus and related method for data transmission across a wireless network

Receiving means (14) for receiving signals delivered over a wireless network and which include packets with clock reference data from a transmitting means (12) for reconstruction of a clock reference at the receiving means (14), the receiving means (14) including a front end comprising a wireless network controller (30) connected to operating system means (32), wherein the said front end (30, 32) is arranged to identify clock reference data in a packet and to synchronise a clock (38) of the receiving means (14) accordingly.

A method including the step of synchronising a receiving means (14) to a clock of a transmitting means (12) over a wireless network, the transmitting means (12) including processing means (22) and operating system means (24) for delivering data packets to the network and including the step of inserting, at the wireless network controller (26), clock reference data into identified packets and prior to delivery of the packets onto the wireless network.

A system (10) of synchronising a receiving means (14) to a clock of a transmitting means (12) over a wireless network, the transmitting means (12) including processing means (22) and operating system means (24) for delivering data packets to the network, including means for identifying the data packets in which clock reference data is to be inserted and means for inserting, at the wireless network controller (24), clock reference data into the identified packets and prior to delivery of the packets onto the wireless network.

Transmitting means (12) for transmitting data packets in a wireless network, wherein at least some of the data packets are arranged to include clock data for use at receiving means (14) in the network for clock reconstruction at the receiving means (14), the transmitting means (12) including processing means (22) and operating system means (24) connected to a network controller for delivering the data packets to the network, and including means for determining receipt at the receiving means (14) of the data packets sent over the network and arranged to resend the packet if receipt is not acknowledged, the network controller (26) further being arranged to insert updated clock reference data prior to resending a packet.

A method of synchronising the clock of a receiving means (14) to a clock signal from a transmitting means (12) in a wireless network, wherein the clock at the receiving means (14) is reconstructed from a data packet delivered from the transmitting means (12) and including the step of monitoring acknowledgement of receipt of the packet at the receiving means (14), and resending the said packet if receipt is not acknowledged, and including the step of inserting updated clock reference data in the packet prior to resending the packet.