High reliability low latency mission critical communication

• US 10,524,259 B2
• Filed: 03/09/2018
• Issued: 12/31/2019
• Est. Priority Date: 11/04/2014
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Azarian Yazdi, Kambiz, Ji, Tingfang, Jiang, Jing
• Primary Examiner(s): Elliott, IV, Benjamin H
• Application Number:
  US15/917,406
• Publication Number:
  US 20180199340A1
• Time in Patent Office: 662 Days
• CPC Class Codes: H04L 1/0018 based on latency requirement
• CPC Class Codes: H04L 1/0026 Transmission of channel quality indication
• CPC Class Codes: H04L 1/1812 Hybrid protocols; Hybrid automatic repeat request [HARQ]
• CPC Class Codes: H04L 1/1887 Scheduling and prioritising arrangements
• CPC Class Codes: H04L 5/001 the frequencies being arranged in component carriers
• 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 5/0091 Signaling for the administration of the divided path
• CPC Class Codes: H04L 5/0094 Indication of how sub-channels of the path are allocated
• CPC Class Codes: H04L 5/0098 Signalling of the activation or deactivation of component carriers, subcarriers or frequency bands
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 88/08 Access point devices

Abstract

Systems and methods for communicating mission-critical (MiCri) data in a network including a base station and user equipment (UE) are provided. The methods may include receiving a request message requesting MiCri data, and transmitting the MiCri data during a transmission time interval (TTI) of a first carrier component or during a transmission time interval (TTI) of a second carrier component. In various aspects, the TTI of the first carrier component may be staggered in time with respect to the TTI of the second carrier component. In another aspect, the UE may pre-report interference pattern information for a nominal TTI for use in communication of MiCri data.

Claims

1. A method for wireless communication, the method comprising:

transmitting, from a first device, a reference signal to a second device during a first transmission time interval (TTI) of a carrier component;

receiving, at the first device, an indication of an interference pattern experienced by the second device for a duration of the first TTI, the indication being based on the reference signal;

receiving, at the first device, a request for mission-critical (MiCri) data; and

transmitting, from the first device, the MiCri data to the second device during the first TTI of the carrier component using a hybrid automated repeat request (HARM) block based on the indication and a determination that a remaining time period within the first TTI after receiving the request does not exceed a predetermined threshold.

2. The method according to claim 1, wherein the transmitting the reference signal includes transmitting the reference signal at a beginning of the first TTI.

3. The method according to claim 1, wherein the transmitting the reference signal includes transmitting a null tone.

4. The method according to claim 3, wherein the transmitting the null tone includes transmitting the null tone at a beginning of the first TTI.

5. The method according to claim 1, wherein the transmitting the reference signal includes transmitting a pilot or a test signal.

6. The method according to claim 1, wherein the transmitting the MiCri data includes transmitting the MiCri data such that a target error rate associated with transmission of the MiCri data is satisfied.

7. The method according to claim 1, further comprising:

transmitting a message indicating the transmission of the MiCri data to the second device, wherein

the transmitting the MiCri data includes transmitting the MiCri data along with the message.

8. The method according to claim 1, wherein the transmitting the HARQ block includes transmitting a single HARQ block by completely utilizing an available bandwidth of the carrier component.

9. The method according to claim 1, wherein the transmitting the HARQ block includes transmitting a single HARQ block utilizing a portion of an available bandwidth of the carrier component.

10. A method for wireless communication, the method comprising:

receiving, from a first device at a second device, a reference signal during a first transmission time interval (TTI) of a carrier component;

transmitting, from the second device, an indication of an interference pattern experienced by the second device based on the reference signal;

transmitting, from the second device, a request for mission-critical (MiCri) data; and

receiving, at the second device, the MiCri data from the first device during the first TTI of the carrier component using a hybrid automated repeat request (HARQ) block based on the indication and a determination that a remaining time period within the first TTI after transmitting the request does not exceed a predetermined threshold.

11. The method according to claim 10, wherein the receiving the reference signal includes receiving the reference signal at a beginning of the first TTI.

12. The method according to claim 10, wherein the receiving the reference signal includes receiving a null tone as the reference signal.

13. The method according to claim 12, wherein the receiving the null tone includes receiving the null tone at a beginning of the first TTI.

14. The method according to claim 10, wherein the receiving the reference signal includes receiving a pilot or a test signal as the reference signal.

15. The method according to claim 10, wherein the receiving the MiCri data includes receiving the MiCri data such that a target error rate associated with reception of the MiCri data is satisfied.

16. The method according to claim 10, further comprising:

receiving a message indicating the transmission of the MiCri data from the first device, wherein

the receiving the MiCri data includes receiving the MiCri data along with the message.

17. The method according to claim 10, wherein the receiving the HARQ block includes receiving a single HARQ block that completely utilizes an available bandwidth of the carrier component.

18. The method according to claim 10, wherein the receiving the HARQ block includes receiving a single HARQ block utilizing a portion of an available bandwidth of the carrier component.

19. A base station, comprising:

a transmitter configured to transmit a reference signal to a first device during a first transmission time interval (TTI) of a carrier component; and

a receiver configured to;

receive an indication of an interference pattern experienced by the first device for a duration of the first TTI, the indication being based on the reference signal; and

receive a request for mission-critical (MiCri) data,

wherein the transmitter is configured to transmit the MiCri data to the first device during the first TTI of the carrier component using a hybrid automated repeat request (HARQ) block based on the indication and a determination that a remaining time period within the first TTI after receiving the request does not exceed a predetermined threshold.

20. The base station according to claim 19, wherein the transmitter is configured to transmit the reference signal at a beginning of the first TTI.

21. The base station according to claim 19, wherein the transmitter is configured to transmit a null tone as the reference signal.

22. The base station according to claim 21, wherein the transmitter is configured to transmit the null tone at a beginning of the first TTI.

23. The base station according to claim 19, wherein the transmitter is configured to transmit a pilot or a test signal as the reference signal.

24. The base station according to claim 19, wherein the transmitter is configured to transmit a message indicating the transmission of the MiCri data to the first device, the MiCri data being transmitted along with the message.

25. A user equipment (UE), comprising:

a receiver configured to receive a reference signal from a first device during a first transmission time interval (TTI) of a carrier component; and

a transmitter configured to;

transmit an indication of an interference pattern experienced by the UE based on the reference signal; and

transmit a request for mission-critical (MiCri) data,

wherein the receiver is configured to receive the MiCri data from the first device during the first TTI of the carrier component using a single hybrid automated repeat request (HARQ) block based on the indication and a determination that a remaining time period within the first TTI after transmitting the request does not exceed a predetermined threshold.

26. The user equipment according to claim 25, wherein the receiver is configured to receive the reference signal at a beginning of the first TTI.

27. The user equipment according to claim 25, wherein the receiver is configured to receive a null tone as the reference signal.

28. The user equipment according to claim 27, wherein the receiver is configured to receive the null tone at a beginning of the first TTI.

29. The user equipment according to claim 25, wherein the receiver is configured to receive a pilot or a test signal as the reference signal.

30. The user equipment according to claim 25, wherein the receiver is configured to receive a message indicating the transmission of the MiCri data from the first device, the MiCri data received along with the message.