WIRELESS TRANSMISSION AND RECEPTION METHOD AND APPARATUS

• US 20110194552A1
• Filed: 10/08/2009
• Published: 08/11/2011
• Est. Priority Date: 10/10/2008
• Status: Abandoned Application

• Current Assignee: Universita' Degli Studi Di Udine (Repubblica Italiana)
• Original Assignee: Universita' Degli Studi Di Udine (Repubblica Italiana)
• Inventors: Pierattoni, Davide, Montessoro, Pier Luca, De Caneva, Daniele
• Application Number:
  US13/122,854
• Publication Number:
  US 20110194552A1
• Time in Patent Office: Days
• US Class Current: 370/345
• CPC Class Codes: H04B 7/2606 Arrangements for base station coverage control, e.g. by using relays in tunnels
• CPC Class Codes: H04W 84/18 Self-organising networks, e.g. ad-hoc networks or sensor networks

Abstract

A wireless transmission and reception method for the transmission of sequences of signals between a first transceiver device and at least a second transceiver device, wherein the first transceiver device and second transceiver device are disposed outside a reciprocal direct radio-communication range. The method comprises a distribution step of a plurality of intermediate transceiver devices, disposed in a non-uniform manner between the first transceiver device and second transceiver devices as to form a linear transceiver chain. The method comprises a step of direct transmission, wherein a first sequence of signals is transmitted from the first transceiver device toward the second transceiver device at regular time intervals, temporally consecutive, able to define a synchronous times base in which each signal of the first sequence is re-transmitted from an intermediate device to an intermediate device immediately adjacent and successive along the path toward the second transceiver device. The method comprises a step of indirect transmission, in which a second sequence of signals is transmitted from the second transceiver device toward the first transceiver device, wherein each signal of the second sequence is transmitted from an intermediate device to an intermediate device immediately adjacent and successive along the path toward the first transceiver device. The signals of the second sequence are transmitted at predetermined regular time intervals defined by the times base in such a manner that each intermediate device receives at most a single signal of the first or second sequence in order to avoid collisions.

Claims

1. A wireless transmission and reception method for the transmission of sequences of signals between a first transceiver device and at least a second transceiver device, wherein said first transceiver device and second transceiver device are disposed outside a reciprocal direct radio-communication range, comprising a distribution step of a plurality of intermediate transceiver devices, disposed in a non-uniform manner between said first transceiver device and second transceiver device so as to form a linear transceiver chain, and a step of direct transmission, wherein a first sequence of signals is transmitted from the first transceiver device toward the second transceiver device at regular time intervals, temporally consecutive, able to define a synchronous times base, in which each signal of said first sequence is re-transmitted from an intermediate device to an intermediate device immediately adjacent and successive along the path toward the second transceiver device, the method comprising a step of indirect transmission, in which a second sequence of signals is transmitted from the second transceiver device toward the first transceiver device, wherein each signal of said second sequence is transmitted from an intermediate device to an intermediate device immediately adjacent and successive along the path toward said first transceiver device, said signals of said second sequence being transmitted at predetermined regular time intervals defined by said times base in such a manner that each intermediate device receives at most a single signal of said first or second sequence in order to avoid collisions.

2. The wireless transmission and reception method as in claim 1, wherein each intermediate device comprises a plurality of transceiver units, disposed in a non-uniform manner so as to define a predetermined cover area of radio signal.

3. The wireless transmission and reception method as in claim 2, wherein each transceiver unit is able to communicate both with at least one or more transceiver units of the same intermediate device, and also with at least one or more transceiver units of intermediate devices immediately adjacent along the path between the first and second device.

4. The wireless transmission and reception method as in claim 3, wherein in said direct or indirect transmission steps each transceiver unit of an intermediate device receives the signal sent by a device adjacent and preceding along the path between the first transceiver device and second transceiver device.

5. The wireless transmission and reception method as in claim 4, wherein said direct or indirect transmission steps comprise a sub-step in which only one predetermined unit of each intermediate unit re-transmits to all the units of a device adjacent and successive along the path between the first transceiver device and second transceiver device the signal in turn received from an intermediate device adjacent and preceding along the path between said first and second device.

6. The wireless transmission and reception method as in claim 5, wherein, in said sub-step of said direct or indirect transmission steps, the transmission of the signal is made by a back-up unit, selectively activated among the transceiver units of the intermediate device based on the detection of non-transmission of the main unit.

7. The wireless transmission and reception method as in claim 1, wherein in said distribution step the first transceiver device is activated in order to synchronize said intermediate devices by means of the transmission of sequences of said signals.

8. The wireless transmission and reception method as in claim 7, wherein said distribution step also comprises a first sub-step of self-configuration in which said units self-configure themselves so as to combine with a predetermined intermediate device.

9. The wireless transmission and reception method as in claim 8, wherein said distribution step comprises a second sub-step of self-configuration in which the units of each intermediate device are configured as main unit or as backup unit.

10. A wireless transceiver apparatus for the transmission of sequences of signals between a first transceiver device and at least a second transceiver device wherein said first transceiver device and second transceiver device are disposed outside a reciprocal direct radio range, wherein said apparatus comprises a plurality of intermediate transceiver devices, disposed in a non-uniform manner between said first transceiver device and second transceiver device so as to form a linear transceiver chain so that each intermediate device is able to receive and transmit only with adjacent intermediate devices, wherein said intermediate devices are able to transmit a first sequence of signals emitted by the first transceiver device toward the second transceiver device, according to a synchronous times basis, wherein each signal of said first sequence is re-transmitted at regular time intervals defined by said times base from each intermediate device to an intermediate device adjacent and successive along the path toward the second transceiver device, wherein said intermediate devices are able to transmit a second sequence of signals emitted by the second transceiver device toward the first transceiver device, wherein each signal of said second sequence is transmitted from an intermediate device to an intermediate device immediately adjacent and successive along the path toward said first transceiver device, wherein said signals of said second sequence are transmitted at predetermined regular time intervals defined by said times base in such a manner that each intermediate device receives at most a single signal of said first or second sequence.

11. The wireless transceiver apparatus as in claim 10, wherein each intermediate device comprises a plurality of transceiver units, disposed in a non-uniform manner in a predetermined area.

12. The wireless transceiver apparatus as in claim 11, wherein each transceiver unit is able to communicate both with at least one or more transceiver units of the same intermediate device, and also with at least one or more transceiver units of intermediate devices immediately adjacent along the path between the first and second device.

13. The wireless transceiver apparatus as in claim 12, wherein each intermediate device comprises a single main unit selected from among the transceiver units of the device, and suitable to transmit the signal to an adjacent intermediate device, and a plurality of back-up units, each able to be selectively and mutually activated, among the other units of the intermediate device, with every transmission of a signal of said first or second sequence.