Granted Patent B2

US 12,309,819 · App. 17/175,900 · Granted May 20, 2025

Inventors: Vidur Bhargava (Austin, TX); Sriram Vishwanath (Austin, TX); Jubin Jose (Austin, TX)

Assignee: Board of Regents, The University of Texas System

H04W72/542H04K3/222H04K3/28H04K3/45H04W28/22H04W72/02H04K2203/16H04K2203/18H04W16/14H04W72/52H04W72/541H04W88/06Y02D30/70

Abstract

Claims (45)

1. A method of relaying data on a multi-hop network, the method comprising:

relaying, with at least a first node of a plurality of nodes in a multi-hop network, data between a cellular base station and at least one cellular device via at least a first wireless communications channel and a second wireless communications channel, wherein the cellular base station controls transmission of the data over the first wireless communications channel that is between the cellular base station and the first node, wherein the first wireless communications channel is a cellular communications channel in accordance with a cellular technology standard, wherein the second wireless communications channel is between the first node and the at least one cellular device, and wherein the data is transmitted over the second wireless communications channel without involvement of the cellular base station;

obtaining a measurement associated with operation of the first node;

directing, with the cellular base station, the at least one cellular device to connect to a second node via at least a third wireless communications channel based at least in part on the measurement associated with the operation of the first node, wherein second data is transmitted over the third wireless communications channel without involvement of the cellular base station;

encrypting third data with a security key associated with the second node to create encrypted third data;

transmitting the encrypted third data from the second node to the cellular base station over at least a fourth wireless communications channel; and

relaying, with the second node, the second data between the cellular base station and the at least one cellular device via at least the third wireless communications channel and the fourth wireless communications channel, wherein the fourth wireless communications channel is between the second node and the cellular base station, and wherein the cellular base station controls transmission of the second data over the fourth wireless communications channel.

2. The method of claim 1 wherein the measurement associated with the operation of the first node is associated with a data rate of the first node.

3. The method of claim 2 wherein the data rate is determined based at least in part on a queue length associated with the first node.

4. The method of claim 1 wherein directing the at least one cellular device to connect to a second node is based at least in part on a control channel signal.

5. The method of claim 1 further comprising determining one or more transmission time slots for data packets associated with the data relayed by the second node.

6. The method of claim 1 further comprising directing, with the first node, the at least one cellular device to connect to the second node based at least in part on the measurement associated with the operation of the first node.

7. The method of claim 1 wherein the measurement associated with the operation of the first node is associated with the first wireless communications channel.

8. The method of claim 1 wherein the measurement associated with the operation of the first node is associated with the second wireless communications channel.

9. The method of claim 1 wherein a third node is in communication with the first node via the second wireless communications channel, and the third node is in communication with the at least one cellular device via at least a fifth wireless communications channel.

10. A computer program comprising non-transitory computer readable storage storing instructions that, when executed, cause the method of claim 1 to be performed.

11. A system that relays data on a multi-hop network, the system comprising:

a first node that relays data between a cellular base station and at least one cellular device via at least a first wireless communications channel and a second wireless communications channel, wherein the first wireless communications channel is a cellular communications channel in accordance with a cellular technology standard, wherein the first wireless communications channel is between the cellular base station and the first node, wherein the cellular base station controls transmission of the data over the first wireless communications channel, wherein the second wireless communications channel is between the first node and the at least one cellular device, and wherein the data is transmitted over the second wireless communications channel without involvement of the cellular base station; and

a second node that connects to the at least one cellular device via at least a third wireless communications channel in response to direction from the cellular base station that is based at least in part on a measurement associated with operation of the first node, wherein second data is transmitted over the third wireless communications channel without involvement of the cellular base station, wherein the second node relays the second data between the cellular base station and the at least one cellular device via at least the third wireless communications channel and a fourth wireless communications channel, wherein the fourth wireless communications channel is between the second node and the cellular base station, wherein the cellular base station controls transmission of the second data over the fourth wireless communications channel, wherein the second node encrypts third data with a security key associated with the second node to create encrypted third data, and wherein the second node transmits the encrypted third data to the cellular base station over at least the fourth wireless communications channel.

12. The system of claim 11 wherein the second node connects to the at least one cellular device based at least in part on a control channel signal.

13. The system of claim 11 wherein the first node directs the at least one cellular device to connect to the second node based at least in part on the measurement associated with the operation of the first node.

14. The system of claim 11 wherein the measurement associated with the operation of the first node is associated with the first wireless communications channel.

15. The system of claim 11 wherein the measurement associated with the operation of the first node is associated with the second wireless communications channel.

16. A communications system comprising:

at least one cellular base station comprising memory;

a first node that relays data between the at least one cellular base station and at least one cellular device via at least a first wireless communications channel and a second wireless communications channel; and

a second node;

wherein the first wireless communications channel is a cellular communications channel in accordance with a cellular technology standard;

wherein the first wireless communications channel is between the at least one cellular base station and the first node;

wherein the at least one cellular base station controls transmission of the data over the first wireless communications channel;

wherein the second wireless communications channel is between the first node and the at least one cellular device;

wherein the data is transmitted over the second wireless communications channel without involvement of the at least one cellular base station;

wherein the memory stores a measurement associated with operation of the first node;

wherein the at least one cellular base station directs the at least one cellular device to connect to a second node via at least a third wireless communications channel based at least in part on the measurement associated with the operation of the first node;

wherein second data is transmitted over the third wireless communications channel without involvement of the at least one cellular base station;

wherein the second node relays the second data between the at least one cellular base station and the at least one cellular device via at least the third wireless communications channel and a fourth wireless communications channel, and the fourth wireless communications channel is between the second node and the at least one cellular base station;

wherein the at least one cellular base station controls transmission of the second data over the fourth wireless communications channel;

wherein the second node encrypts third data with a security key associated with the second node to create encrypted third data; and

wherein the second node transmits the encrypted third data to the at least one cellular base station over at least the fourth wireless communications channel.

17. The communications system of claim 16 wherein directing the at least one cellular device to connect to the second node is based at least in part on a control channel signal.

18. The communications system of claim 16 wherein the first node directs the at least one cellular device to connect to the second node based at least in part on the measurement associated with the operation of the first node.

19. The communications system of claim 16 wherein the measurement associated with the operation of the first node is associated with the first wireless communications channel.

20. The communications system of claim 16 wherein the measurement associated with the operation of the first node is associated with the second wireless communications channel.

21. The communications system of claim 16 wherein the at least one cellular base station is configured to wirelessly communicate according to a Long Term Evolution (LTE) standard.

22. The communications system of claim 16 wherein the second node comprises a rate allocator configured to select a physical-layer rate of transmission of the second data from the second node.

Assignments (3)

Continuity (5)

References Cited (259)