MISSION CRITICAL AND AUTONOMOUS UPLINK TRANSMISSION SUPPORT

• US 20180110063A1
• Filed: 03/30/2017
• Published: 04/19/2018
• Est. Priority Date: 10/13/2016
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Fan, Michael Mingxi, Montojo, Juan, Bhushan, Naga, Damnjanovic, Aleksandar, Sadek, Ahmed Kamel
• Granted Patent: US 10,440,731 B2
• Time in Patent Office: Days
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/0446 Resources in time domain, e.g. slots or frames
• CPC Class Codes: H04W 72/1263 Mapping of traffic onto schedule, e.g. scheduled allocation or multiplexing of flows
• CPC Class Codes: H04W 74/006 in the downlink, i.e. towards the terminal
• CPC Class Codes: H04W 74/04 Scheduled access hybrid access H04W74/02
• CPC Class Codes: H04W 76/10 Connection setup

Abstract

A connection may be established between a base station and a user equipment (UE) using a radio frequency shared by multiple network operating entities. Resources (e.g., a frame) may be divided into exclusive, prioritized, and opportunistic sub-intervals for a given network operating entity coexisting within the shared radio frequency spectrum. Additionally, a set of low latency sub-intervals (e.g., reserved resources) may be designated for use by the network operating entity for mission critical (MiCr) and/or autonomous uplink transmissions. The network operating entity may indicate timing information for low latency sub-intervals during a sub-interval for exclusive use by the network operating entity. The UE may then transmit MiCr and/or autonomous uplink messages using the low latency intervals without performing a medium sensing procedure. In some cases, the sub-intervals for MiCr and autonomous uplink transmissions may be for exclusive use by the network operating entity.

Claims

1. A method for wireless communication, comprising:

establishing a wireless connection for communication using a shared radio frequency spectrum band shared by a plurality of network operating entities;

identifying a frame comprising a first plurality of sub-intervals for exclusive use by a network operating entity, prioritized use by the network operating entity, or opportunistic use by the network operating entity;

identifying, within the frame, a second plurality of sub-intervals different from the first plurality, the second plurality comprising reduced latency communication sub-intervals designated for use by the network operating entity for autonomous uplink transmissions, mission critical transmissions, or both; and

transmitting a message during the one or more sub-intervals of the second plurality, wherein the message comprises an autonomous uplink transmission or a mission critical transmission.

2. The method of claim 1, further comprising:

receiving an indication of a timing of the second plurality of sub-intervals from the network operating entity.

3. The method of claim 2, wherein

the indication is received during a sub-interval for exclusive use by the network operating entity.

4. The method of claim 1, wherein

a timing of the second plurality of sub-intervals is preconfigured based at least in part on an identification (ID) of the network operating entity.

5. The method of claim 1, wherein

transmitting the message further comprises:

transmitting the message during a sub-interval of the second plurality that is within an acquisition sub-interval of the frame, wherein the acquisition sub-interval also includes one or more sub-intervals for exclusive use by the network operating entity.

6. The method of claim 1, wherein

transmitting the message further comprises:

transmitting the message during a sub-interval of the second plurality that is included between an end boundary of a sub-interval for prioritized use by the network operating entity and a start boundary of a sub-interval for opportunistic use by the network operating entity.

7. The method of claim 1, wherein

the sub-intervals designated for autonomous uplink transmissions and the sub-intervals designated for mission critical transmissions are non-overlapping.

8. The method of claim 1, wherein

the second plurality of sub-intervals are for the exclusive use of the network operating entity.

9. The method of claim 1, further comprising:

refraining from participating in a medium sensing procedure in relation to the second plurality of sub-intervals prior to transmission of the message.

10. The method of claim 1, wherein

transmitting the message further comprises:

transmitting a mission critical uplink transmission.

11. The method of claim 1, wherein

transmitting the message further comprises:

transmitting a mission critical downlink transmission.

12. The method of claim 1, wherein

the reduced latency communication sub-intervals designated for use by the network operating entity for mission critical transmissions are contention-free.

13. The method of claim 1, wherein

the reduced latency communication sub-intervals designated for use by the network operating entity for autonomous uplink transmissions are used with a contention procedure.

14. The method of claim 1, wherein

the second plurality of sub-intervals for the network operating entity outnumber the first plurality of sub-intervals for the network operating entity in the frame.

15. A method for wireless communication, comprising:

establishing a wireless connection for communication using a shared radio frequency spectrum band shared by a plurality of network operating entities;

identifying a frame comprising a first plurality of sub-intervals for exclusive use by a network operating entity, prioritized use by the network operating entity, or opportunistic use by the network operating entity;

identifying, within the frame, a second plurality of sub-intervals different from the first plurality, the second plurality comprising reduced latency communication sub-intervals designated for use by the network operating entity for autonomous uplink transmissions, mission critical transmissions, or both; and

receiving a message during the one or more sub-intervals of the second plurality, wherein the message comprises an autonomous uplink transmission or a mission critical transmission.

16. The method of claim 15, further comprising:

transmitting an indication of a timing of the second plurality of sub-intervals from the network operating entity.

17. The method of claim 16, wherein

the indication is transmitted during a sub-interval for exclusive use by the network operating entity.

18. The method of claim 15, wherein

a timing of the second plurality of sub-intervals is preconfigured based at least in part on an identification (ID) of the network operating entity.

19. The method of claim 15, wherein

receiving the message further comprises:

receiving the message during a sub-interval of the second plurality that is within an acquisition sub-interval of the frame, wherein the acquisition sub-interval also includes one or more sub-intervals for exclusive use by the network operating entity.

20. The method of claim 15, wherein

receiving the message further comprises:

receiving the message during a sub-interval of the second plurality that is included between an end boundary of a sub-interval for prioritized use by the network operating entity and a start boundary of a sub-interval for opportunistic use by the network operating entity.

21. The method of claim 15, wherein

the sub-intervals designated for autonomous uplink transmissions and the sub-intervals designated for mission critical transmissions are non-overlapping.

22. The method of claim 15, wherein

the second plurality of sub-intervals are for the exclusive use of the network operating entity.

23. The method of claim 15, wherein

receiving the message further comprises:

receiving a mission critical uplink transmission.

24. The method of claim 15, wherein

receiving the message further comprises:

receiving a mission critical downlink transmission.

25. The method of claim 15, wherein

the reduced latency communication sub-intervals designated for use by the network operating entity for mission critical transmissions are contention-free.

26. The method of claim 15, wherein

the reduced latency communication sub-intervals designated for use by the network operating entity for autonomous uplink transmissions are used with a contention procedure.

27. The method of claim 15, wherein

the second plurality of sub-intervals for the network operating entity outnumber the first plurality of sub-intervals for the network operating entity in the frame.

28. An apparatus for wireless communication, in a system comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to;

establish a wireless connection for communication using a shared radio frequency spectrum band shared by a plurality of network operating entities;

identify a frame comprising a first plurality of sub-intervals for exclusive use by a network operating entity, prioritized use by the network operating entity, or opportunistic use by the network operating entity;

identify, within the frame, a second plurality of sub-intervals different from the first plurality, the second plurality comprising reduced latency communication sub-intervals designated for use by the network operating entity for autonomous uplink transmissions, mission critical transmissions, or both; and

transmit a message during the one or more sub-intervals of the second plurality, wherein the message comprises an autonomous uplink transmission or a mission critical transmission.

29. The apparatus of claim 28, wherein the instructions are further executable by the processor to cause the apparatus to:

receive an indication of a timing of the second plurality of sub-intervals from the network operating entity.

30. An apparatus for wireless communication, in a system comprising:

a processor;

memory in electronic communication with the processor; and

instructions stored in the memory and operable, when executed by the processor, to cause the apparatus to;

establish a wireless connection for communication using a shared radio frequency spectrum band shared by a plurality of network operating entities;

identify a frame comprising a first plurality of sub-intervals for exclusive use by a network operating entity, prioritized use by the network operating entity, or opportunistic use by the network operating entity;

identify, within the frame, a second plurality of sub-intervals different from the first plurality, the second plurality comprising reduced latency communication sub-intervals designated for use by the network operating entity for autonomous uplink transmissions, mission critical transmissions, or both; and

receive a message during the one or more sub-intervals of the second plurality, wherein the message comprises an autonomous uplink transmission or a mission critical transmission.