TIGHT FREQUENCY REUSE COLORING FOR NEW RADIO-UNLICENSED (NR-U)

• US 20200137584A1
• Filed: 09/30/2019
• Published: 04/30/2020
• Est. Priority Date: 10/24/2018
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Xue, Yisheng, Damnjanovic, Aleksandar, Zhang, Xiaoxia, Sun, Jing, Wei, Yongbin
• Granted Patent: US 11,265,728 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 24/08 Testing, supervising or monitoring using real traffic
• CPC Class Codes: H04W 28/26 Resource reservation
• CPC Class Codes: H04W 72/541 using the level of interference
• CPC Class Codes: H04W 74/002 Transmission of channel access control information
• CPC Class Codes: H04W 74/0808 using carrier sensing, e.g. carrier sense multiple access [CSMA]
• CPC Class Codes: H04W 74/0816 with collision avoidance

Abstract

Wireless communications systems and methods related to communications in an unlicensed spectrum with tight frequency reuse color coding are provided. A first wireless communication device communicates, with a second wireless communication device, a first reservation signal to reserve a first transmission opportunity (TXOP) in a spectrum shared by a plurality of network operating entities. The first reservation signal includes a first waveform sequence identifying at least a first network operating entity of the plurality of network operating entities associated with the first wireless communication device and the second wireless communication device. The first wireless communication device communicates, with the second wireless communication device, a first communication signal in the spectrum during the TXOP.

Claims

1. A method of wireless communication, comprising:

communicating, by a first wireless communication device with a second wireless communication device, a first reservation signal to reserve a first transmission opportunity (TXOP) in a spectrum shared by a plurality of network operating entities, the first reservation signal including a first waveform sequence identifying at least a first network operating entity of the plurality of network operating entities associated with the first wireless communication device and the second wireless communication device; and

communicating, by the first wireless communication device with the second wireless communication device, a first communication signal in the spectrum during the TXOP.

2. The method of claim 1, further comprising:

communicating, by the first wireless communication device with the second wireless communication device, a configuration indicating an assignment of the first waveform sequence for reserving the first TXOP in the spectrum.

3. The method of claim 1, further comprising:

coordinating, by the first wireless communication device with a third wireless communication device associated with a second network operating entity of the plurality of network operating entities, communications in the spectrum during the TXOP, the communications including the first communication signal and a second communication signal associated with the third wireless communication device.

4. The method of claim 3, wherein the first network operating entity and the second network operating entity correspond to a same network operating entity.

5. The method of claim 3, wherein the first network operating entity and the second network operating entity are different network operating entities, and wherein the first waveform sequence identifies a set of network operating entities including the first network operating entity and the second network operating entity based on an association rule.

6. The method of claim 3, wherein the coordinating includes:

coordinating, by the first wireless communication device with the third wireless communication device, to determine a transmission timeline for the communications within the first TXOP.

7. The method of claim 3, wherein the coordinating includes:

coordinating, by the first wireless communication device with the third wireless communication device, to determine a transmission parameter for the communications within the first TXOP.

8. The method of claim 1, further comprising:

communicating, by the first wireless communication device, a second reservation signal to reserve a second TXOP in the spectrum for communicating with a third wireless communication device associated with the first network operating entity, the second reservation signal including a second waveform sequence different from the first waveform sequence.

9. The method of claim 8, wherein the first waveform sequence and the second waveform sequence are associated with at least one of different interference tolerance levels or different transmission power levels.

10. The method of claim 9, wherein the second waveform sequence identifies at least the first network operating entity.

11. The method of claim 9, wherein the second waveform sequence identifies a default network operating entity of the plurality of network operating entities.

12. The method of claim 1, further comprising:

receiving, by the first wireless communication device from a third wireless communication device, a second reservation signal reserving a second TXOP in the spectrum, the second reservation signal including a second waveform sequence; and

determining, by the first wireless communication device, whether to communicate with a fourth wireless communication device different from the third wireless communication device during the second TXOP based on an energy threshold associated with the second waveform sequence.

13. An apparatus comprising:

a transceiver configured to;

communicate, with a first wireless communication device, a first reservation signal to reserve a first transmission opportunity (TXOP) in a spectrum shared by a plurality of network operating entities, the first reservation signal including a first waveform sequence identifying at least a first network operating entity of the plurality of network operating entities associated with the apparatus and the first wireless communication device; and

communicate, with the first wireless communication device, a first communication signal in the spectrum during the TXOP.

14. The apparatus of claim 13, wherein the transceiver is further configured to:

communicate, with the first wireless communication device, a configuration indicating an assignment of the first waveform sequence for reserving the first TXOP in the spectrum.

15. The apparatus of claim 13, further comprising:

a processor configured to coordinate, with a second wireless communication device associated with a second network operating entity of the plurality of network operating entities, communications in the spectrum during the TXOP, the communications including the first communication signal and a second communication signal associated with the second wireless communication device.

16. The apparatus of claim 15, wherein the first network operating entity and the second network operating entity correspond to a same network operating entity.

17. The apparatus of claim 15, wherein the first network operating entity and the second network operating entity are different network operating entities, and wherein the first waveform sequence identifies a set of network operating entities including the first network operating entity and the second network operating entity based on an association rule.

18. The apparatus of claim 15, wherein the processor is further configured to coordinate the communications by:

coordinating, with the second wireless communication device, to determine at least one of a transmission timeline for the communications within the first TXOP or a transmission parameter for the communications within the first TXOP.

19. The apparatus of claim 13, wherein the transceiver is further configured to:

communicate a second reservation signal to reserve a second TXOP in the spectrum for communicating with a second wireless communication device associated with the first network operating entity, the second reservation signal including a second waveform sequence different from the first waveform sequence, and

wherein the first waveform sequence and the second waveform sequence are associated with at least one of different interference tolerance levels or different transmission power levels.

20. The apparatus of claim 19, wherein the second waveform sequence identifies at least one of the first network operating entity or a default network operating entity of the plurality of network operating entities.

21. The apparatus of claim 13,

wherein the transceiver is further configured to:

receive, from a second wireless communication device, a second reservation signal reserving a second TXOP in the spectrum, the second reservation signal including a second waveform sequence, and

wherein the apparatus further comprises a processor configured to;

determine whether to communicate with a fourth wireless communication device different from the second wireless communication device during the second TXOP based on an energy threshold associated with the second waveform sequence.

22. A non-transitory computer-readable medium having program code recorded thereon, the program code comprising:

code for causing a first wireless communication device to communicate, with a second wireless communication device, a first reservation signal to reserve a first transmission opportunity (TXOP) in a spectrum shared by a plurality of network operating entities, the first reservation signal including a first waveform sequence identifying at least a first network operating entity of the plurality of network operating entities associated with the first wireless communication device and the second wireless communication device; and

code for causing the first wireless communication device to communicate, with the second wireless communication device, a first communication signal in the spectrum during the TXOP.

23. The non-transitory computer-readable medium of claim 22, further comprising:

code for causing the first wireless communication device to communicate, with the second wireless communication device, a configuration indicating an assignment of the first waveform sequence for reserving the first TXOP in the spectrum.

24. The non-transitory computer-readable medium of claim 22, further comprising:

code for causing the first wireless communication device to coordinate, with a third wireless communication device associated with a second network operating entity of the plurality of network operating entities, communications in the spectrum during the TXOP, the communications including the first communication signal and a second communication signal associated with the third wireless communication device.

25. The non-transitory computer-readable medium of claim 24, wherein the first network operating entity and the second network operating entity correspond to a same network operating entity.

26. The non-transitory computer-readable medium of claim 24, wherein the first network operating entity and the second network operating entity are different network operating entities, and wherein the first waveform sequence identifies a set of network operating entities including the first network operating entity and the second network operating entity based on an association rule.

27. The non-transitory computer-readable medium of claim 24, wherein the code for causing the first wireless communication device to coordinate the communications is further configured to:

coordinate, with the third wireless communication device, to determine at least one of a transmission timeline for the communications within the first TXOP or a transmission parameter for the communications within the first TXOP.

28. The non-transitory computer-readable medium of claim 22, further comprising:

code for causing the first wireless communication device to communicate a second reservation signal to reserve a second TXOP in the spectrum for communicating with a third wireless communication device associated with the first network operating entity, the second reservation signal including a second waveform sequence different from the first waveform sequence,

wherein the first waveform sequence and the second waveform sequence are associated with at least one of different interference tolerance levels or different transmission power levels.

29. The non-transitory computer-readable medium of claim 28, wherein the second waveform sequence identifies at least one of the first network operating entity or a default network operating entity of the plurality of network operating entities.

30. The non-transitory computer-readable medium of claim 22, further comprising:

code for causing the first wireless communication device to receive, from a third wireless communication device, a second reservation signal reserving a second TXOP in the spectrum, the second reservation signal including a second waveform sequence; and

code for causing the first wireless communication device to determine whether to communicate with a fourth wireless communication device different from the third wireless communication device during the second TXOP based on an energy threshold associated with the second waveform sequence.