Patent ID: 9247539
Filing Date: 2016-01-26
CPC Classification: H04L,H04W

Claim Text:
1. A base station comprising bidirectional data transmission to a node, comprising: a receiver for receiving a data packet transmitted by the node at a node transmission point in time, the node transmission point in time being derived from a timer of the node; a determiner for determining the node transmission point in time based on the data packet received and for determining a time deviation of the timer of the node based on a time deviation between the determined node transmission point in time and a set node transmission point in time associated to the node; a transmitter for transmitting a data packet to the node, the data packet comprising the determined time deviation of the timer of the node or a correction value derived therefrom; wherein the receiver for receiving the data packet transmitted by the node at the node transmission point in time is configured to receive a further data packet transmitted by the node at a further node transmission point in time, the further node transmission point in time being derived from the timer of the node; wherein the determiner for determining the node transmission point in time is configured to determine the further node transmission point in time based on the further data packet, the determiner for determining the time deviation of the timer of the node being configured to determine a further time deviation between the determined further node transmission point in time and a further set node transmission point in time associated to the node and to determine a clock deviation of the timer of the node based on the time deviation and the further time deviation; wherein the transmitter for transmitting the data packet to the node is configured to transmit the data packet to the node at the determined clock deviation of the timer or comprising a correction value derived therefrom; and wherein the base station comprises a coordinator for coordinating the node configured to associate the set node transmission point in time to the node.