Assured data transfer for full-duplex communication

• US 10,574,427 B2
• Filed: 10/19/2018
• Issued: 02/25/2020
• Est. Priority Date: 10/20/2017
• Status: Active Grant

• Current Assignee: Foster-Miller Incorporated (Thermo Fisher Scientific Incorporated)
• Original Assignee: Foster-Miller Incorporated (Thermo Fisher Scientific Incorporated)
• Inventors: Murphree, Michael, Judell, Neil
• Primary Examiner(s): Mew, Kevin D
• Application Number:
  US16/165,231
• Publication Number:
  US 20190123884A1
• Time in Patent Office: 494 Days
• Field of Search: None
• CPC Class Codes: H04L 1/1664 the supervisory signal being transmitted together with payload signals; piggybacking
• CPC Class Codes: H04L 1/1809 Selective-repeat protocols
• CPC Class Codes: H04L 1/1864 ARQ related signaling H04L1/1607 takes precedence
• CPC Class Codes: H04L 1/1896 ARQ related signaling
• CPC Class Codes: H04L 5/14 Two-way operation using the same type of signal, i.e. duplex

Abstract

In a full duplex data transfer method system, a first transceiver and a second transceiver are configured to transmit and receive data packets. At the first transceiver, a status indicator is added to each data packet in a set of data packets and the status indicator of each data packet is initially set to not transmitted. A list of all data packets having a status indicator set to not transmitted is maintained.

All data packets of the set are transmitted from the first transceiver to the second transceiver while the first transceiver receives transmissions from the second transceiver. At the second transceiver, all data packets received are saved and an indication regarding the data packets received are transmitted back to the first transceiver. At the first transceiver, the status indicator of all data packets in the list received by the second transceiver are set to received. The first transceiver then retransmits to the second transceiver all data packets of the set in the list having an indicator set to not transmitted.

Claims

1. A full duplex data transfer method comprising:

configuring a first transceiver to transmit and receive data packets;

configuring a second transceiver to transmit and receive data packets;

at the first transceiver, adding a status indicator to each data packet in a set of data packets, setting the status indicator of each data packet to not transmitted, and maintaining a list of data packets having a status indicator set to not transmitted;

transmitting all said data packets of the set from the first transceiver to the second transceiver while receiving transmissions from the second transceiver;

at the second transceiver, saving all data packets received and transmitting an indication regarding the data packets received back to the first transceiver;

at the first transceiver, setting the status indicator of all data packets in the list received by the second transceiver to received; and

at the first transceiver, retransmitting to the second transceiver all data packets of the set in the list having an indicator set to not transmitted.

2. The method of claim 1 in which the first transceiver initializes a transmission to the second transceiver by transmitting to the second transmission a request to initiate a transmission with an indication of the total number of packets to be transmitted.

3. The method of claim 2 in which, the second transceiver, upon receipt of the request, transmits an acknowledgment of the request to the first transceiver.

4. The method of claim 1 in which the status indicator is a bit in each data packet.

5. The method of claim 1 in which transmissions from the first transceiver to the second transceiver and transmissions from the second transceiver to the first transceiver are continuous.

6. The method of claim 5 in which transmissions from the first transceiver to the second transceiver are via a predetermined band of frequencies and transmissions from the second transceiver to the first transceiver are via the same predetermined band of frequencies.

7. A full duplex data transfer system comprising:

a first transceiver configured to;

transmit and receive data packets,

add a status indicator to each data packet in a set of data packets,

set the status indicator of a set of data packets to not transmitted,

maintain a list of packets having a status indicator set to not transmitted,

transmit said set of data packets to a second transceiver,

set the status indicator of all data packets in the list received by the second transceiver to transmitted, and

retransmit to the second transceiver all data packets of the set in the list having an indicator set to not transmitted; and

a second transceiver configured to;

receive and save all data packets received, and

transmit to the first transmitter an indication regarding data packets received.

8. The system of claim 7 in which the first transceiver is configured to initialize a transmission to the second transceiver by transmitting to the second transmission a request to initiate a transmission with an indication of the total number of packets to be transmitted.

9. The system of claim 8 in which the second transceiver, upon receipt of the request, transmits an acknowledgment of the request to the first transceiver.

10. The system of claim 7 in which the status indicator is a bit in each data packet.

11. The system of claim 7 in which transmissions from the first transceiver to the second transceiver and transmissions from the second transceiver to the first transceiver are continuous.

12. The system of claim 11 in which transmissions from the first transceiver to the second transceiver are via a predetermined band of frequencies and transmissions from the second transceiver to the first transceiver are via the same predetermined band of frequencies.