UDP-based control command transmission method, sender and receiver

• US 10,348,680 B2
• Filed: 10/20/2016
• Issued: 07/09/2019
• Est. Priority Date: 10/20/2015
• Status: Active Grant

• Current Assignee: LittleBits, Inc.
• Original Assignee: Beijing Xiaoniao Tingting Technology Co., LTD.
• Inventors: Lou, Xiaolei, Zeng, Xiaobo, Jiang, Binbin
• Primary Examiner(s): Vu, Hoang-Chuong Q
• Application Number:
  US15/299,015
• Publication Number:
  US 20170111316A1
• Time in Patent Office: 992 Days
• CPC Class Codes: H04L 2101/663 Transport layer addresses, e.g. aspects of transmission control protocol [TCP] or user datagram protocol [UDP] ports
• CPC Class Codes: H04L 2101/668 Internet protocol [IP] address subnets
• CPC Class Codes: H04L 49/201 Multicast operation; Broadcast operation
• CPC Class Codes: H04L 5/0055 Physical resource allocation for ACK/NACK for physical mapping arrangements in ARQ protocols H04L1/1861
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 69/164 Adaptation or special uses of UDP protocol
• CPC Class Codes: H04L 69/28 Timers or timing mechanisms used in protocols

Abstract

Provided is a User Datagram Protocol (UDP)-based control command transmission method, in which a sender sends a control command packet to a receiver based on a UDP; and the receiver sends an Acknowledgement (ACK) packet to the sender based on the UDP after receiving the control command packet. A sender and a receiver are also provided.

Claims

1. A User Datagram Protocol (UDP)-based control command transmission method, comprising:

a first step of sending, by a sender, a control command packet to a receiver based on a UDP in a broadcast or multicast manner; and

a second step of sending in the broadcast or multicast manner, by the receiver, an Acknowledgement (ACK) packet to the sender based on the UDP after having successfully received the control command packet to indicate that the control command packet was successfully received and appending, by the receiver, a unique identifier of the receiver into the ACK packet for sending such that, when the control command packet and the ACK packet are transmitted in the broadcast or multicast manner, the unique identifier of the receiver is configured to distinguish the receiver that sends the ACK packet.

2. The transmission method according to claim 1,

wherein the first step includes appending, by the sender, a command Identifier (ID) that uniquely identifies the control command packet into the control command packet for sending;

and

wherein the second step includes appending, by the receiver, the command ID consistent with that in the received control command packet into the ACK packet for sending.

3. The transmission method according to claim 2, wherein the sender performs the sending to one or more receivers in a Peer-to-Peer (P2P) manner,

wherein the first step includes acquiring an Internet Protocol (IP) address of the receiver or a list of IP addresses of the receivers, and sending the control command packet to the IP address of each of the one or more receivers;

and

wherein the second step includes acquiring an IP address of the sender corresponding to the received control command packet, and sending the ACK packet to the IP address of the sender.

4. The transmission method according to claim 3, further comprising:

a third step of, when the sender receives the ACK packet from the receiver within a preset time period, determining that command sending is successful, and when the sender does not receive the ACK packet from the receiver within the preset time period, resending the control command packet to the receiver; and

a fourth step of, when the sender does not receive the ACK packet after sending the control command packet to the receiver for N times, determining that sending the control command packet to the receiver has failed.

5. The transmission method according to claim 2,

wherein the first step includes appending, by the sender, a group ID into the control command packet for sending;

and

wherein the second step includes appending, by the receiver, the group ID consistent with that in the received control command packet into the ACK packet for sending.

6. The transmission method according to claim 5, wherein the first step includes acquiring a broadcast or multicast group address, and sending the control command packet in the broadcast or multicast manner;

and

wherein the second step includes acquiring, by each receiver that has received the control command packet in a group, the IP address of the sender or the broadcast or multicast group address corresponding to the received control command packet, and sending the ACK packet to the address or the broadcast or multicast group address.

7. The transmission method according to claim 6, further comprising:

a third step of, when the sender receives the ACK packets from all the receivers within a preset time period, determining that sending the control command packet is successful, and when the sender does not receive the ACK packets from all the receivers within the preset time period, resending the control command packet in the broadcast or multicast manner; and

a fourth step of, when the sender does not receive the ACK packets from all the receivers after sending the control command packet in the broadcast or multicast manner for N times, determining that sending the control command packet to the one or more receivers that have not sent the ACK packets has failed.

8. A User Datagram Protocol (UDP)-based control command sender, comprising:

a memory; and

a processor configured to execute a series of actions by performing instructions stored in the memory, including;

to send a control command packet to a receiver based on a UDP in a broadcast or multicast manner, and

to receive a UDP-based Acknowledgement (ACK) packet sent in the broadcast or multicast manner that indicates that the control command packet was successfully received from the receiver and that contains a unique identifier of the receiver appended into the ACK packet such that, when the control command packet and the ACK packet are transmitted in the broadcast or multicast manner, the unique identifier of the receiver is configured to distinguish the receiver that sends the ACK packet.

9. The sender according to claim 8, wherein the processor is further configured to append a command Identifier (ID) that uniquely identifies the control command packet into the control command packet for sending.

10. The sender according to claim 9, wherein the processor is further configured to perform the sending to one or more receivers in a Peer-to-Peer (P2P) manner, to acquire an Internet Protocol (IP) address of the receiver or a list of IP addresses of the receivers, and to send the control command packet to the IP address of each of the one or more receivers.

11. The sender according to claim 10,

wherein the processor is further configured to, when failing to receive the ACK packet from the receiver within a preset time period, resend the control command packet to the receiver;

and

wherein the processor is further configured to, when receiving the ACK packet from the receiver within the preset time period, determine that sending the control command packet is successful, and when failing to receive the ACK packet after sending the control command packet to the receiver for N times, determining that sending the control command packet to the receiver has failed.

12. The sender according to claim 8,

wherein the processor is further configured to perform the sending to multiple receivers, and append a group ID into the control command packet for sending, and

wherein the processor is further configured to acquire a broadcast or multicast group address, and to send the control command packet in the broadcast or multicast manner.

13. The sender according to claim 12,

wherein the processor is further configured to, when failing to receive the ACK packets from all the receivers within a preset time period, resend the control command packet in the broadcast or multicast manner;

and

wherein the receiving module is further configured to, when receiving the ACK packets from all the receivers within the preset time period, determining that sending the control command packet is successful, and when failing to receive the ACK packets from all the receivers after sending the control command packet in the broadcast or multicast manner for N times, determining that sending the control command packet to the one or more receivers that have not sent the ACK packets has failed.

14. A User Datagram Protocol (UDP)-based control command receiver, comprising:

a memory; and

a processor configured to execute a series of actions by performing instructions stored in the memory, including;

to receive a control command packet from a sender;

to send an Acknowledgement (ACK) packet to the sender to indicate the control command packet was successfully received in a broadcast or multicast manner; and

to append a unique identifier of the receiver into the ACK packet for sending such that, when the control command packet and the ACK packet are transmitted in the broadcast or multicast manner, the unique identifier of the receiver is configured to distinguish the receiver that sends the ACK packet.

15. The receiver according to claim 14, wherein the processor is further configured to append a command Identifier (ID) consistent with that in the received control command packet into the ACK packet for sending.

16. The receiver according to claim 15, wherein the processor is further configured to, during Peer-to-Peer (P2P) sending, acquire an Internet Protocol (IP) address of the sender corresponding to the received control command packet and send the ACK packet to the address.

17. The receiver according to claim 15, wherein the processor is further configured to, during broadcast or multicast sending, (i) acquire a group ID consistent with that in the received control command packet, (ii) append the group ID into the ACK packet, (iii) acquire the IP address of the sender or a broadcast or multicast group address corresponding to the received control command packet, and (iv) send the ACK packet to the address or the broadcast or multicast group address.