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Researchers Submit Patent Application, "Concept for Bidirectional Data Transmission between a Base Station and a Node", for Approval

July 30, 2014



By a News Reporter-Staff News Editor at Electronics Newsweekly -- From Washington, D.C., VerticalNews journalists report that a patent application by the inventors BERNHARD, Josef (Nabburg, DE); KILIAN, Gerd (Erlangen, DE), filed on March 3, 2014, was made available online on July 17, 2014.

No assignee for this patent application has been made.

News editors obtained the following quote from the background information supplied by the inventors: "Embodiments of the present invention relate to a concept for bidirectional data transmission between a base station and a node. Further embodiments of the present invention relate to a base station including bidirectional data transmission to a node. Further embodiments of the present invention relate to an optimized bidirectional base station-node telemetry system.

"When transmitting small amounts of data from a large number of nodes to a base station, such as, for example, sensor data of heating, electricity or water meters, and when transmitting control information from the base station to the nodes, such as, for example, when switching on/off devices, a radio transmission system may be used. Here, the base station receives and controls a large number of nodes.

"There are different unidirectional and bidirectional systems for transmitting data between the base station and the nodes. Known systems are, for example, DECT (digital enhanced cordless telecommunications) and RFID (radio frequency identification). Typical of these systems is the fact that the base station sets a reference frequency and a reference time which the nodes synchronize to. Exemplarily, in RFID systems, a reader (base station) sets a time window, which follows directly after being sent out, within which the RFID transponders (nodes) randomly choose a time for responding. The predetermined time interval is additionally subdivided into time slots of equal length. This is called a slotted ALOHA protocol. In DECT, time slots are provided within a fixed predetermined pattern. Here, the base station associates to a participant an exact time slot which it may use for communication. Due to the inaccuracy caused by the quartz tolerance, a buffer time is provided in between the time slots in order for the data packets not to overlap.

"The object underlying the present invention is providing a concept which allows increasing the range and/or data transmission rate or channel capacity (number of participants or users)."

As a supplement to the background information on this patent application, VerticalNews correspondents also obtained the inventors' summary information for this patent application: "According to an embodiment, a base station including bidirectional data transmission to a node may have: means for receiving a data packet transmitted by the node at a node transmission frequency, the node transmission frequency being derived from a frequency generator of the node; means for determining the node transmission frequency based on the data packet received and for determining a deviation of the frequency generator of the node based on a frequency deviation between the determined node transmission frequency and a set node transmission frequency associated to the node; means for transmitting a data packet to the node at a base station transmission frequency, the means for transmitting the data packet being configured to set the base station transmission frequency based on the determined deviation of the frequency generator of the node; wherein the means for transmitting the data packet is configured to tune the base station transmission frequency to a node receiving frequency based on the determined deviation of the frequency generator of the node, the node receiving frequency being derived from the frequency generator of the node.

"According to another embodiment, a system for bidirectional data transmission may have: a base station as mentioned in the above paragraph; and a node, the node having means for transmitting the data packet to the base station at the node transmission frequency and means for receiving the data packet from the base station, the means for receiving the data packet from the base station having a receiving filter having a bandwidth of less than 0.1% of the carrier frequency.

"According to still another embodiment, a base station including bidirectional data transmission to a node may have: means 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; means 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; means for transmitting a data packet to the node, the data packet having the determined time deviation of the timer of the node or a correction value derived therefrom; wherein the means 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 means 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 means 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; and wherein the means 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 having a correction value derived therefrom.

"According to another embodiment, a system including bidirectional data transmission may have: a base station as mentioned in the above paragraph; and a node, the node having means for transmitting the data packet to the base station at the node transmission point in time and means for receiving the data packet from the base station, the means for transmitting the data packet being configured to set the node transmission point in time to the set node transmission point in time based on the determined deviation of the timer or the correction value derived therefrom.

"According to another embodiment, a method for bidirectional data transmission between a base station and a node may have the steps of: receiving a data packet transmitted by the node at a node transmission frequency, the node transmission frequency being derived from a frequency generator of the node; determining the node transmission frequency based on the data packet received and determining a deviation of the frequency generator of the node based on a frequency deviation between the determined node transmission frequency and a set node transmission frequency associated to the node; and setting a base station transmission frequency based on the determined deviation of the frequency generator of the node and transmitting a data packet to the node at the base station transmission frequency; and tuning the base station transmission frequency to a node receiving frequency based on the determined deviation of the frequency generator of the node, the node receiving frequency being derived from the frequency generator of the node.

"According to still another embodiment, a method for bidirectional data transmission between a base station and a node may have the steps of: 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; determining the node transmission point in time based on the data packet received and 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; transmitting a data packet to the node, the data packet having the determined time deviation of the timer of the node and a correction value derived therefrom; receiving 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; determining the further node transmission point in time based on the further data packet and determining a further time deviation of the timer of the node based on 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; determining a clock deviation of the timer of the node based on the time deviation and the further time deviation; and wherein transmitting the data packet to the node has transmitting the data packet at the determined time deviation of the timer of the node or having a correction value derived therefrom.

"Another embodiment may have a computer program having program code for performing the above methods, when the program runs on a computer or microprocessor.

"Embodiments of the present invention provide a base station including bidirectional data transmission to a node. The base station comprises means for receiving a data packet transmitted by the node at a node transmission frequency, the node transmission frequency being derived from a frequency generator of the node. In addition, the base station comprises means for determining the node transmission frequency based on the data packet received and for determining a deviation of the frequency generator of the node based on a frequency deviation between the determined node transmission frequency and a set or desired node transmission frequency associated to the node. Furthermore, the base station comprises means for transmitting a data packet to the node at a base station transmission frequency, the means for transmitting the data packet being configured to set the base station transmission frequency based on the determined deviation of the frequency generator of the node.

"In embodiments, the deviation of the frequency generator of the node from the base station is determined based on the frequency deviation between the determined node transmission frequency and the set node transmission frequency associated to the node, and the base station transmission frequency is set based on the determined deviation of the frequency generator of the node, exemplarily such that the base station transmission frequency is adjusted to a node receiving frequency which is also derived from the frequency generator of the node.

"Further embodiments of the present invention provide a base station including bidirectional data transmission to a node. The base station comprises means for receiving a data packet sent by the node at a node transmission frequency, the node transmission frequency being derived from a frequency generator of the node. Additionally, the base station comprises means for determining the node transmission frequency based on the data packet received and for determining a deviation of the frequency generator of the node based on a frequency deviation between the determined node transmission frequency and a set node transmission frequency associated to the node. Furthermore, the base station comprises means for transmitting a data packet to the node, the data packet comprising the determined deviation of the frequency generator of the node or a correction value derived therefrom.

"In embodiments, the deviation of the frequency generator of the node from the base station is determined based on the frequency deviation between the determined node transmission frequency and the set node transmission frequency associated to the node, and the determined deviation of the frequency generator of the node or a correction value derived therefrom is transmitted to the node in the data packet.

"Further embodiments of the present invention provide a base station including bidirectional data transmission to a node. The base station comprises means 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. In addition, the base station comprises means 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. Furthermore, the base station comprises means 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.

"In embodiments, the deviation of the timer of the node from the base station is determined based on the time deviation between the determined node transmission point in time and the set node transmission point in time associated to the node, and the determined deviation of the timer of the node or a correction value derived therefrom is transmitted to the node in the data packet.

BRIEF DESCRIPTION OF THE DRAWINGS

"Embodiments of the present invention will be detailed subsequently referring to the appended drawings, in which:

"FIG. 1 is a block circuit diagram of a base station including bidirectional data transmission to a node in accordance with an embodiment of the present invention;

"FIG. 2 is a block circuit diagram of a system for bidirectional data transmission in accordance with an embodiment of the present invention;

"FIG. 3 is a block circuit diagram of a conventional node;

"FIG. 4 is a block diagram of a base station including bidirectional data transmission to a node in accordance with another embodiment of the present invention;

"FIG. 5 is a block circuit diagram of a system including bidirectional data transmission in accordance with another embodiment of the present invention;

"FIG. 6 is a diagram of the utilization of a communications channel of an FDMA system over time, the ordinate plotting the frequency and the abscissa plotting the time;

"FIG. 7 is a diagram of a frequency deviation of a node transmission frequency from the mean frequency of a channel, the ordinate plotting the frequency and the abscissa plotting the time;

"FIG. 8 is a block diagram of a base station including bidirectional data transmission to a node in accordance with another embodiment of the present invention;

"FIG. 9 is a block circuit diagram of a system including bidirectional data transmission in accordance with another embodiment of the present invention;

"FIG. 10 is a diagram of the utilization of a communications channel of a TDMA system over time, the ordinate plotting the frequency and the abscissa plotting the time; and

"FIG. 11 is a diagram of the utilization of a communications channel in the coordination method in accordance with an embodiment of the present invention, the ordinate describing the frequency and the abscissa describing the time."

For additional information on this patent application, see: BERNHARD, Josef; KILIAN, Gerd. Concept for Bidirectional Data Transmission between a Base Station and a Node. Filed March 3, 2014 and posted July 17, 2014. Patent URL: http://appft.uspto.gov/netacgi/nph-Parser?Sect1=PTO2&Sect2=HITOFF&u=%2Fnetahtml%2FPTO%2Fsearch-adv.html&r=3395&p=68&f=G&l=50&d=PG01&S1=20140710.PD.&OS=PD/20140710&RS=PD/20140710

Keywords for this news article include: Data Transmission, Electronics, Patents.

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Source: Electronics Newsweekly


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