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1. WO2020197619 - DEVICES, SYSTEMS AND METHODS FOR NARROW BAND COMMUNICATIONS WITHIN PROTOCOL HAVING FREQUENCY MULTIPLEXING

Note: Text based on automatic Optical Character Recognition processes. Please use the PDF version for legal matters

[ EN ]

IN THE CLAIMS

What is claimed is:

1 . A method, comprising:

generating packet data for a narrow band packet;

transmitting first preamble data across a first channel followed by the narrow band packet with a second preamble across at least one resource unit (RU); wherein

the RU has a smaller bandwidth than the first channel and occupies a portion of the first channel,

the first preamble is configured to enable detection of a packet transmitted in the first channel, and

the second preamble is configured to enable detection of a packet transmitted in the at least one RU without the first preamble.

2. The method of claim 1 , wherein:

the first preamble and second preamble have a same modulation.

3. The method of claim 1 , wherein:

the first preamble is a preamble according to at least one predetermined wireless standard that transmits data for different destinations on a plurality of different RUs in parallel, the RUs being part of the first channel.

4. The method of claim 3, wherein:

the at least one predetermined wireless standard includes the IEEE 802.1 1 ax wireless standard and the RUs are resource units of the IEEE 802.1 1 ax standard.

5. The method of claim 1 , further including:

transmitting the second preamble the data followed by the narrow band packet includes orthogonal frequency division multiple access modulation to transmit the narrow band packet in the second bandwidth.

6. The method of claim 1 , further including:

transmitting the narrow band packet with other user data in other RUs having a different destination than the narrowband packet.

7. The method of claim 1 , wherein:

the narrow band preamble includes at least one training field comprising no less than two symbols.

8. A device, comprising:

communication circuits configured to

transmit a first preamble over a first channel, and

modulate different data sets into different resource units (RUs) within the first bandwidth, including a narrow band preamble for at least one of the RUs;

control circuits coupled to the modulation circuits and configured to provide narrow band packet data as the data set modulated into the at least one RU having the narrow band preamble; and

radio circuits configured to transmit signals over at least the first channel followed by signals transmitted over the RUs in parallel with one another.

9. The device of claim 8, wherein:

the first preamble is a preamble according to an IEEE 802.11 wireless standard.

10 The device of claim 8, wherein:

the communication circuits are configured to transmit the narrow band packet data after the first preamble.

1 1 . The device of claim 8, wherein:

the first preamble and second preamble have a same modulation.

12. The device of claim 8, wherein:

the control circuits are further configured to provide at least one other data set for modulation into a RU different from that containing the narrow band packet data.

13. The device of claim 8, wherein:

the modulation circuits include orthogonal frequency division multiple access circuits.

14. A system, comprising:

at least one access point device (AP) configured to transmit full channel packets with a first preamble in a first channel followed by separate data streams in a plurality of resource units in parallel, at least one data stream comprising a narrow band packet having a second preamble; and

at least one station device (STA) configured to receive and decode the narrow band packet without the first preamble; wherein

the RUs are portions of the first channel.

15. The system of claim 14, wherein:

the at least one AP is configured to transmit the narrow band packet in the smallest bandwidth RU of the plurality of RUs.

16. The system of claim 14, wherein:

the first preamble is transmitted according to an IEEE 802.11 wireless standard.

17. The system of claim 14, wherein:

the at least one STA is further configured to receive and decode the packets transmitted across the first channel.

18. The system of claim 14, wherein:

the first preamble and second preamble have a same modulation.

19. The system of claim 14, wherein:

the first preamble includes at least one training field; and the second preamble includes at least one training field.

20. The system of claim 18, wherein:

the at least one AP is configured to transmit the full channel packet according to the IEEE 802.11 ax standard; and

the RUs are resource units of the IEEE 802.11 ax standard.