METHOD FOR TRANSMITTING A COMMUNICATION SIGNAL

• US 20120244896A1
• Filed: 12/14/2010
• Published: 09/27/2012
• Est. Priority Date: 12/14/2009
• Status: Active Grant

• Current Assignee: Orange S.A.
• Original Assignee: Orange S.A.
• Inventors: Miscopein, Benoît, Schwoerer, Jean
• Granted Patent: US 8,918,130 B2
• Time in Patent Office: Days
• US Class Current: 455/500
• CPC Class Codes: H04W 28/04 Error control
• CPC Class Codes: H04W 28/06 Optimizing the usage of the radio link, e.g. header compression, information sizing , discarding information system modifying transmission characteristic according to link quality by modifying frame length H04L1/0007; dynamic adaptation of the packet size for flow control or congestion control H04L47/365
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks
• CPC Class Codes: H04W 88/04 adapted for relaying to or from another terminal or user

Abstract

A data transmitter is provided for transmitting data that makes it possible for nodes, relaying the preamble transmitted by a transmitter node, to also transmit data to a single destination node without, in turn, transmitting another preamble. In a network comprising a plurality of nodes that alternately observe sleeping and waking periods in an asynchronous manner relative to each other, a node receives a first preamble that is transmitted by at least one transmitter node. The first preamble comprises at least one first set of information related to transmission, by the transmitter node, of a first data set to a destination node. The adjacent node transmits a second data set to the destination node or to another node from the transmission of the first data set.

Claims

1. A method of transmission of data in a network including a plurality of nodes alternating sleeping periods and waking periods asynchronously with respect to each other, said method being implemented by a first node wherein it comprises the following steps:

receiving a first preamble transmitted by at least one transmitter node, the first preamble including at least one first set of information relating to transmission by the transmitter node of a first set of data to a destination node;

modification of the first preamble by adding a second set of information relating to the transmission of the second set of data by the first node;

transmission of the first preamble as modified before the transmission of the first set of data and

transmitting to the destination node or to a second node a second set of data after transmission of the first set of data.

3. The method as claimed in claim 1, wherein the first preamble includes an indication relating to a preamble mutualization mode, said indication belonging to a group comprising a single destination mutualization mode and a multiple destination mutualization mode.

4. The method as claimed in claim 3, wherein the indication relating to a preamble mutualization mode corresponds to the single destination mutualization mode and the second set of information added relates to a transmission of the second set of data by the first node to the destination node, the second set of data being transmitted to the destination node during the transmitting to the destination node or to the second node of the second set of data after transmission of the first set of data.

6. The method of reception by a node of a preamble transmitted by at least a first node by the method as claimed in claim 1, said method comprising the following steps implemented by said node:

receiving the preamble;

extracting information included in the preamble announcing at least the transmission of the first set of data to a destination node;

if the node is the destination node announced in the preamble, receiving the first and second sets of data.

7. The method as claimed in claim 6, further comprising a step of awaiting other sets of data following reception of the first and second sets of data.

8. The reception method as claimed in claim 6, comprising the following steps:

extracting information included in the preamble including an indication relating to the preamble mutualization mode, said indication belonging to a group comprising a single destination mutualization mode and a multiple destination mutualization mode;

if the node is not the destination node, sleeping for a period calculated as a function of said indication.

9. The reception method as claimed in claim 8, wherein if the node is not the destination node announced and if the preamble mutualization mode indicated is the multiple destination mode, said method comprises the following steps:

sleeping until the beginning of the transmission of the first set of data;

receiving descriptive data coming from the transmitter node;

if the descriptive data includes information indicating that the node is the destination of a set of data, receiving said set of data.

10. The method as claimed in claim 9, wherein said method comprises a step of sleeping after the reception of the descriptive data if the descriptive data does not include any information relating to the transmission of a set of data to the node.

11. A device for receiving a preamble transmitted by at least one first node by the method as claimed in claim 1, comprising:

a receiver for receiving the preamble;

an extractor for extraction of information included in the preamble announcing at least the transmission of the first set of data to a destination;

a receiver adapted to receive the first and the second sets of data if the device is the destination announced in the preamble.

12. A node in a network including a plurality of nodes alternating sleeping periods and waking periods asynchronously relative to each other, wherein it includes:

a data transmission device adapted to be integrated into a network including a plurality of nodes alternating sleeping periods with waking periods asynchronously with respect to each other, comprising;

a receiver adapted to receive a first preamble transmitted by at least one transmitter node, the first preamble including at least one first set of information relating to transmission by the transmitter node of a first set of data to a destination node;

modification element adapted to modify the first preamble by adding a second set of information relating to the transmission of the second set of data by the first node;

a transmitter adapted to transmit the first preamble as modified before the transmission of the first set of data and

a transmitter adapted to transmit to the destination node or to a second node a second set of data after transmission of the first set of data,

the node further comprising;

the receiver device as claimed in claim 11.

13. A non-transitory computer program product comprising instructions for implementing the transmission method as claimed in claim 1 when the program is executed by a computer.

14. A non-transitory computer program product comprising instructions for implementing the reception method as claimed in claim 6 when the program is executed by a computer.

2. (canceled)

5. A data transmission device adapted to be integrated into a network including a plurality of nodes alternating sleeping periods with waking periods asynchronously with respect to each other, comprising:

a receiver adapted to receive a first preamble transmitted by at least one transmitter node, the first preamble including at least one first set of information relating to transmission by the transmitter node of a first set of data to a destination node;

modification element adapted to modify the first preamble by adding a second set of information relating to the transmission of the second set of data by the first node;

a transmitter adapted to transmit the first preamble as modified before the transmission of the first set of data and

a transmitter adapted to transmit to the destination node or to a second node a second set of data after transmission of the first set of data.