Resource requirement signaling and rate setting

• US 10,425,193 B2
• Filed: 09/13/2016
• Issued: 09/24/2019
• Est. Priority Date: 12/23/2015
• Status: Active Grant

• Current Assignee: Qualcomm, Inc.
• Original Assignee: Qualcomm, Inc.
• Inventors: Abraham, Santosh Paul, Bhushan, Naga, Ji, Tingfang
• Primary Examiner(s): Faroul, Farah
• Application Number:
  US15/264,447
• Publication Number:
  US 20170188385A1
• Time in Patent Office: 1,106 Days
• Field of Search: None
• CPC Class Codes: H04L 1/0083 Formatting with frames or packets; Protocol or part of protocol for error control
• CPC Class Codes: H04L 5/003 Arrangements for allocating sub-channels of the transmission path
• CPC Class Codes: H04L 69/22 Parsing or analysis of headers
• CPC Class Codes: H04W 28/0205 at the air interface dynamic wireless traffic scheduling H04W72/12
• CPC Class Codes: H04W 72/0453 Resources in frequency domain, e.g. a carrier in FDMA
• CPC Class Codes: H04W 72/1215 for collaboration of different radio technologies
• CPC Class Codes: H04W 72/21 in the uplink direction of a wireless link, i.e. towards the network
• CPC Class Codes: H04W 72/52 based on load
• CPC Class Codes: H04W 74/085 collision avoidance
• CPC Class Codes: H04W 84/12 WLAN [Wireless Local Area Networks]

Abstract

The disclosure relates in some aspects to resource requirement signaling and rate setting for communication on an unlicensed band. The disclosure also relates in some aspects to determining a token arrival rate as a function of traffic arrival information. In some aspects, the disclosed schemes may avoid traffic collisions on a resource and promote access fairness on the resource.

Claims

1. A method of wireless communication, comprising:

communicating via a licensed radio frequency (RF) band;

determining that information is to be communicated via an unlicensed RF band;

generating an indication of a resource requirement for communication of the information via the unlicensed RF band;

determining whether the licensed RF band is available for sending the indication; and

sending the indication via the unlicensed RF band if the licensed RF band is not available for sending the indication, wherein the indication is sent to an entity that schedules at least one resource on the unlicensed RF band for communication of the information.

2. The method of claim 1, wherein the resource requirement comprises an uplink resource requirement for the unlicensed RF band.

3. The method of claim 1, further comprising sending the information over the unlicensed RF band at a time that is based on a token arrival time.

4. The method of claim 1, wherein the indication is sent via the licensed RF band if the licensed RF band is available for sending the indication.

5. The method of claim 4, wherein the indication is sent using 5G technology.

6. The method of claim 1, wherein the indication is sent using wireless local area network (WLAN) technology.

7. The method of claim 1, wherein the indication is sent using Institute of Electrical and Electronics Engineers (IEEE) 802.11 technology.

8. The method of claim 7, wherein the indication is sent via a null data packet (NDP) frame.

9. The method of claim 8, further comprising:

generating an error check sequence for the indication, wherein the error check sequence is generated using a first algorithm that is different from a second algorithm used for generating error check sequences for NDP frames; and

including the error check sequence for the indication in the NDP frame.

10. The method of claim 8, further comprising:

generating an error check sequence for the indication;

inverting the error check sequence; and

including the inverted error check sequence in the NDP frame.

11. The method of claim 8, further comprising:

generating cyclic redundancy check (CRC) bits for the indication by applying an IEEE 802.11 NDP CRC generation algorithm to the indication;

flipping at least one of the CRC bits to generate modified CRC bits; and

including the modified CRC bits in the NDP frame.

12. A method of wireless communication, comprising:

receiving an indication of a resource requirement for communication of information via an unlicensed radio frequency (RF) band;

scheduling at least one resource on the unlicensed RF band for communication of the information; and

receiving the information over the unlicensed RF band according to the scheduled at least one resource and at a time that is based on a token arrival time.

13. The method of claim 12, wherein the resource requirement comprises an uplink resource requirement for the unlicensed RF band.

14. The method of claim 12, further comprising acknowledging receipt of the indication by sending a message comprising the indication.

15. The method of claim 12, wherein the indication is received via a null data packet (NDP) frame.

16. The method of claim 15, further comprising:

receiving an error check sequence for the indication; and

verifying the error check sequence using a first algorithm that is different from a second algorithm used for generating error check sequences for NDP frames.

17. The method of claim 12, further comprising:

receiving an error check sequence for the indication;

inverting the error check sequence; and

verifying the inverted error check sequence.

18. An apparatus for wireless communication, comprising:

a memory; and

a processor coupled to the memory,

the processor and the memory configured to;

communicate via a licensed radio frequency (RF) band;

determine that information is to be communicated via an unlicensed RF band;

generate an indication of a resource requirement for communication of the information via the unlicensed RF band;

determine whether the licensed RF band is available for sending the indication; and

send the indication via the unlicensed RF band if the licensed RF band is not available for sending the indication, wherein the indication is sent to an entity that schedules at least one resource on the unlicensed RF band for communication of the information.

19. The apparatus of claim 18, wherein the resource requirement comprises an uplink resource requirement for the unlicensed RF band.

20. The apparatus of claim 18, wherein the indication is sent via a null data packet (NDP) frame.

21. The apparatus of claim 20, wherein the processor and the memory are further configured to:

generate an error check sequence for the indication, wherein the error check sequence is generated using a first algorithm that is different from a second algorithm used for generating error check sequences for NDP frames; and

include the error check sequence for the indication in the NDP frame.

22. The apparatus of claim 20, wherein the processor and the memory are further configured to:

generate an error check sequence for the indication;

invert the error check sequence; and

include the inverted error check sequence in the NDP frame.

23. An apparatus for wireless communication, comprising:

a memory; and

a processor coupled to the memory,

the processor and the memory configured to;

receive an indication of a resource requirement for communication of information via an unlicensed radio frequency (RF) band;

schedule at least one resource on the unlicensed RF band for communication of the information; and

receive the information over the unlicensed RF band according to the scheduled at least one resource and at a time that is based on a token arrival time.

24. The apparatus of claim 23, wherein the resource requirement comprises an uplink resource requirement for the unlicensed RF band.

25. The apparatus of claim 23, wherein the indication is received via a null data packet (NDP) frame.

26. The apparatus of claim 25, wherein the processor and the memory are further configured to:

receive an error check sequence for the indication; and

verify the error check sequence using a first algorithm that is different from a second algorithm used for generating error check sequences for NDP frames.

27. The apparatus of claim 23, wherein the processor and the memory are further configured to:

receive an error check sequence for the indication;

invert the error check sequence; and

verify the inverted error check sequence.