Partition a radio into a service chain and a scan chain to scan channels

Patent metadata

Field	Value
Publication number	US-11304048-B2
Application number	US-201716616754-A
Country	US
Kind code	B2
Filing date	Jun 9, 2017
Priority date	Jun 9, 2017
Publication date	Apr 12, 2022
Grant date	Apr 12, 2022

Abstract

Example implementations relate to partitioning a radio into chains to scan channels. In some examples, a network device may comprise a processing resource and a memory resource storing machine-readable instructions to partition a default radio of the network device into a service chain and a scan chain in response to a scan request, scan a particular channel with the scan chain to discover devices operating on the particular channel of a network, and combine the service chain and the scan chain into the default radio.

First claim

What is claimed:

1. A network device, comprising:
a processing resource; and
a memory resource storing machine-readable instructions to cause the processing resource to:
partition a default radio of the network device into a service chain and a scan chain in response to a scan request, wherein the service chain provides network connectivity to client devices connected to the network device, and wherein the scan chain scans other channels to discover devices operating on the other channels;
scan a particular channel with the scan chain for a predetermined amount of time to discover devices operating on the particular channel of a network; and
combine, after completing the scan and after the predetermined amount of time, the service chain and the scan chain into the default radio.

2. The network device of claim 1 , including instructions to cause the processing resource to provide network connectivity to client devices connected to the network device with the service chain while the particular channel is scanned by the scan chain.

3. The network device of claim 1 , wherein the channel scanned by the scan chain is determined based on the scan request.

4. The network device of claim 1 , wherein the network device provides network connectivity to client devices connected to the network device on a channel that is different from the particular channel scanned by the scan chain.

5. The network device of claim 1 , including instructions to cause the processing resource to:
combine the service chain and the scan chain into the default radio in response to receiving a multiple-user multiple-input multiple-output (MU-MIMO) transmission from an existing client device connected to the network device.

6. The network device of claim 1 , wherein the network device is an access point (AP).

7. The network device of claim 1 , including instructions to cause the processing resource to:
partition antennas of the network device into the service chain and the scan chain in response to the scan request.

8. The network device of claim 1 , including instructions to cause the processing resource to:
queue the scan request in response to MU-MIMO transmissions being in progress; and
scan the particular channel in response to MU-MIMO transmissions ceasing.

9. A non-transitory machine-readable storage medium having stored thereon machine-readable instructions to cause a computer processor to:
partition, by a network device, a default radio of the network device into a service chain and a scan chain in response to receiving a scan request, wherein the service chain provides network connectivity to client devices connected to the network device, and wherein the scan chain scans other channels to discover devices operating on the other channels;
scan, by the scan chain of the network device, a particular channel for a predetermined amount of time to discover devices operating on the particular channel of a network, wherein the network device is operating on a channel that is different from the particular channel; and
combine, after completing the scan and after the predetermined amount of time, the service chain and the scan chain into the default radio.

10. The medium of claim 9 , comprising instructions to combine the service chain and the scan chain into the default radio in response to at least one of:
receiving a multiple-user multiple-input multiple-output (MU-MIMO) transmission from a plurality of client devices connected to the network device; and
transmitting a MU-MIMO transmission to the plurality of client devices connected to the network device.

11. The medium of claim 10 , wherein the predetermined amount of time is modifiable.

12. The medium of claim 9 , wherein the scan request is periodically received by the network device.

13. The medium of claim 9 , wherein the scan request is received by the network device in response to a change in a topology of the network.

14. The medium of claim 9 , wherein the method includes:
queueing the scan request in response to MU-MIMO transmissions being in progress; and
scanning the particular channel in response to MU-MIMO transmissions ceasing.

15. A method, comprising:
partitioning, by an access point (AP), a default radio of the AP into a service chain and a scan chain in response to receiving a scan request, wherein the service chain provides network connectivity to client devices connected to the network device, and wherein the scan chain scans other channels to discover devices operating on the other channels;
scanning, by the scan chain of the AP, a particular channel for a predetermined amount of time to discover devices operating on the particular channel of a network, wherein the AP is operating on a channel that is different from the particular channel;
providing, by the service chain of the AP, network connectivity to client devices connected to the AP; and
combining, by the AP after completing scanning and after the predetermined amount of time, the service chain and the scan chain into the default radio.

16. The method of claim 15 , wherein the method includes combining the service chain and the scan chain in response to
receiving a multiple-user multiple-input multiple-output (MU-MIMO) transmission from a client device connected to the network device.

17. The method of claim 15 , wherein the method includes:
determining, by the AP, whether MU-MIMO transmissions by the client devices are in progress; and
refraining from partitioning the default radio in response to MU-MIMO transmissions by the client devices being in progress.

18. The method of claim 17 , wherein the method includes:
queueing received scan requests in response to the MU-MIMO transmissions being in progress; and
scanning, by the scan chain of the AP, particular channels included in the queued scan requests in response to MU-MIMO transmissions by the client devices ceasing.

19. The method of claim 15 , wherein the method includes:
partitioning antennas of the network device into the service chain and the scan chain in response to the scan request.

20. The method of claim 15 , wherein the scan request is received in response to at least one of: an asymmetric AP link, an out of sync beacon link, or a performance threshold being exceeded.

Assignees

• Hewlett Packard Entpr Dev Lp

Inventors

• Siraj Shahnawaz
• Ganu Sachin
• Beaudin Andre
• Dunsbergen Ben
• Thawani Manoj
• Zhou Qiang

Classifications

• H04B7/0452 Primary

  Multi-user MIMO systems · CPC title

• H04W88/08

  Access point devices · CPC title

• H03J7/00

  Automatic frequency control; Automatic scanning over a band of frequencies · CPC title

• H03J1/0091

  provided with means for scanning over a band of frequencies (H03J1/0058 takes precedence) · CPC title

• H04W8/005 Primary

  Discovery of network devices, e.g. terminals · CPC title