Channel allocation among multiple radio frequency networks

• US 10,264,590 B2
• Filed: 08/31/2016
• Issued: 04/16/2019
• Est. Priority Date: 08/31/2016
• Status: Active Grant

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Abraham, Alvin, Rao, Raghavendra Ramesh, Santhanam, Balachandar
• Primary Examiner(s): Shah, Saumit
• Application Number:
  US15/253,600
• Publication Number:
  US 20180063851A1
• Time in Patent Office: 958 Days
• Field of Search: None
• CPC Class Codes: H04W 16/14 Spectrum sharing arrangements between different networks
• CPC Class Codes: H04W 72/563 of the wireless resources

Abstract

Methods, systems, and storage media for dynamic allocation of communication channels among multiple wireless networks are disclosed. The example embodiments may provide interference mitigation and control among a plurality of wireless protocols operating in an environment. Other embodiments may be disclosed and/or claimed.

Claims

1. A computer device comprising:

one or more processors, coupled with a memory and radio frequency (RF) circuitry, wherein the one or more processors are to operate;

interference logic to;

identify a plurality of available channels based on a scan of a desired frequency spectrum by the RF circuitry, and

determine an interference signature for each available channel of the plurality of available channels, wherein the interference signature for each available channel is to indicate a type of interference experienced by a corresponding one of each available channel;

classification logic to assign a rank to each available channel of the plurality of available channels based on the interference signatures of the plurality of available channels, wherein at least one available channel of the plurality of available channels is associated with a different wireless communication protocol than a wireless communication protocol of another available channel of the plurality of available channels;

selection logic to select an available channel from among the plurality of available channels, wherein the selection logic is to select an available channel based on the assigned ranks; and

communications interface logic to control transmission of a data packet to another computer device in accordance with a wireless communication protocol associated with the selected available channel, wherein the data packet is to instruct the other computer device to transmit over the selected available channel.

2. The computer device of claim 1, further comprising:

interference logic to be operated by the one or more processors to determine the plurality of available channels, wherein the interference logic is to determine the plurality of available channels based on a scan of a desired frequency spectrum by the RF circuitry and a corresponding interference signature for each of the plurality of available channels.

3. The computer device of claim 1 wherein the interference logic is to:

determine, from among the plurality of available channels, an aggressor network and one or more victim networks,

wherein the aggressor network comprises a set of the plurality of available channels that cause interference with other ones of the plurality of available channels, and

wherein each of the one or more victim networks comprise a set of the plurality of available channels under interference by the set of the plurality of available channels of the aggressor network.

4. The computer device of claim 3, wherein the classification logic is further to:

classify the set of the plurality of available channels of the one or more victim networks according to a type of interference caused by the aggressor network.

5. The computer device of claim 4, wherein to classify the set of the plurality of available channels of the one or more victim networks, the classification logic is to:

assign a first priority to the plurality of available channels that do not overlap with an available channel of the aggressor network;

assign a second priority to the plurality of available channels with experience of Additive White Gaussian Noise (AWGN) interference from an available channel of the aggressor network;

assign a third priority to the plurality of available channels with experience of flat spectrum interference from an available channel of the aggressor network; and

assign a fourth priority to the plurality of available channels with experience of bumpy spectrum interference from an available channel of the aggressor network, and

wherein the first priority is greater than the second priority, the second priority is greater than the third priority, and the third priority is greater than the fourth priority.

6. The computer device of claim 5, wherein the classification logic is to assign the rank to each of the plurality of available channels based on an assigned priority of each of the plurality of available channels, and wherein the classification logic is to further rank each of the plurality of available channels according an associated data rate.

7. The computer device of claim 6, wherein the selection logic is further to implement a random selection procedure to select the available channel when the plurality of available channels includes at least two available channels with a same rank, wherein implementation of the random selection procedure is to randomly choose an available channel from among the at least two available channels with the same rank.

8. The computer device of claim 1 wherein:

the interference logic is to determine whether any other channels associated with a same wireless communication protocol are operating on the selected available channel based on another scan of the selected available channel;

the selection logic is to select another available channel when at least one other channel associated with a same wireless communication protocol is operating on the selected available channel; and

the communications interface logic is to control transmission of the data packet when no other channels associated with a same wireless communication protocol are operating on the selected available channel.

9. The computer device of claim 1, wherein the interference logic is to determine the interference signature is based on an energy detection (ED) operation or a Received Signal Strength Indicator (RSSI).

10. The computer device of claim 1, wherein the computer device is a system on chip (SoC) including the one or more processors and the memory, and wherein the SoC is implemented in a wireless gateway, an Internet of Things (loT) gateway, a wireless access point, a base station, or a radio beacon.

11. The computer device of claim 1, wherein the wireless communication protocol associated with the selected available channel is among wireless communication protocols comprising at least two of Long Term Evolution (LTE);

Universal Mobile Telecommunications System (UMTS);

Global System for Mobile Communications (GSM);

Enhanced Data GSM Environment (EDGE);

an Institute of Electrical and Electronics Engineers (IEEE) 802.11 protocol (WiFi);

an IEEE 802.16 protocol (Wi-MAX);

one or more IEEE 802.15.4 based protocols;

Bluetooth or Bluetooth Low Energy (BLE) protocols;

ANT protocol;

LTE device-to-device (D2D) or Proximity Services (ProSe) protocols;

Z-Wave protocol;

SigFox protocol;

Platanus protocol;

or Universal Plug and Play (UPnP).

12. One or more non-transitory computer readable media (NTCRM) comprising instructions, wherein execution of the instructions by one or more processors of a computer device is to cause the computer device to:

determine an interference signature for each available channel of a plurality of available channels, wherein the interference signature for each available channel is to indicate a type of interference experienced by corresponding ones of each available channel;

assign a rank to each available channel of the plurality of available channels, wherein assignment of the ranks is based on the interference signatures of each available channel, and wherein at least one available channel of the plurality of available channels is associated with a different wireless communication protocol than a wireless communication protocol of another available channel of the plurality of available channels;

select an available channel from among the plurality of available channels based on the assigned ranks; and

control transmission of one or more data packets over the selected available channel in accordance with a wireless communication protocol associated with the selected available channel.

13. The one or more NTCRM of claim 12, wherein execution of the instructions is to cause the computer device to:

determine the plurality of available channels based on a scan of a desired frequency spectrum.

14. The one or more NTCRM of claim 13, wherein the interference signature of each available channel is to indicate an amount of interference experienced by the corresponding ones of each available channel.

15. The one or more NTCRM of claim 14, wherein to assign the rank to each of the plurality of available channels, execution of the instructions is to cause the computer device to:

assign, to each available channel, the rank such that available channels with a lower amount of interference are ranked higher than channels with a greater amount of interference.

16. The one or more NTCRM of claim 15, wherein each of the plurality of available channels are further ranked according an associated data rate.

17. The one or more NTCRM of claim 13, wherein execution of the instructions is to cause the computer device to:

scan, at a predetermined interval, the desired frequency spectrum; and

determine the corresponding interference signature for each available channel based on the scan.

18. The one or more NTCRM of claim 12, wherein execution of the instructions is to cause the computer device to:

store, in a dynamic channel allocation (DCA) database (DB), each available channel of the plurality of available channels; and

store, in the DCA DB, a corresponding wireless communication protocol used by each available channel of the plurality of available channels, wherein the corresponding wireless communication protocol used by each available channel includes a radio frequency (RF) power level, a data rate, and a modulation schema.

19. The one or more NTCRM of claim 12, wherein execution of the instructions is to cause the computer device to:

determine, from among the plurality of available channels, an aggressor network and one or more victim networks, wherein the aggressor network comprises a set of the plurality of available channels that cause interference with other ones of the plurality of available channels, and wherein each of the one or more victim networks comprise a set of the plurality of available channels under interference by the set of the plurality of available channels of the aggressor network, and

classify the set of the plurality of available channels of the one or more victim networks according to a type of interference caused by the aggressor network.

20. The one or more NTCRM of claim 12, wherein execution of the instructions is to cause the computer device to:

determine, based on another scan of the selected available channel, whether any other channels associated with a same wireless communication protocol are operating on the selected available channel; and

select another available channel when at least one other channel associated with a same wireless communication protocol is operating on the selected available channel.

21. An Internet of Things (loT) gateway appliance, comprising:

communication circuitry arranged to periodically perform individual scans of an environment at a desired frequency spectrum; and

processor circuitry communicatively coupled with memory circuitry and the communication circuitry, the processor circuitry arranged to;

identify, after each of the individual scans, a plurality of available channels of one or more wireless networks operating in the environment,

determine an interference signature for each wireless network, wherein the interference signature for each wireless network is to indicate a type of interference experienced by a corresponding one of each wireless network,

assign a rank to each wireless network based on the interference signatures of each wireless network,

select an available channel from among the plurality of available channels based on the assigned ranks, and

generate a data packet to include an instruction, wherein the instruction is to instruct a computer device in the environment to transmit over the selected available channel; and

the communication circuitry is arranged to transmit the data packet to the computer device in accordance with a wireless communication protocol associated with the selected available channel.

22. The loT gateway appliance of claim 21, wherein at least one wireless network of the one or more wireless networks employs a different wireless communication protocol than wireless communication protocols of one or more other wireless networks of the one or more wireless networks.

23. The loT gateway appliance of claim 21, wherein the memory circuitry is arranged to store a dynamic channel allocation (DCA) database (DB), wherein the DCA DB comprises one or more DB objects corresponding to the one or more wireless networks, and the processor circuitry is arranged to:

store the interference signature of each wireless network in a corresponding DB object in the DCA DB.

24. The loT gateway appliance of claim 23, wherein individual DB objects of the one or more DB objects are to store a wireless communication protocol employed by the one or more wireless networks and one or more of:

a modulation schema employed by the one or more wireless networks,

a maximum number of channels of the one or more wireless networks,

a maximum bandwidth per channel of the one or more wireless networks,

a maximum power per channel of the one or more wireless networks,

a maximum data rate per channel of the one or more wireless networks,

a number of available channels of the one or more wireless networks,

a power level of each available channel of the one or more wireless networks,

a data rate of each available channel of the one or more wireless networks, and

a classification and rank of the one or more wireless networks.

25. The loT gateway appliance of claim 21, wherein the interference signature of each wireless network is to indicate an amount of interference experienced by a corresponding one of each wireless network, and wherein, to assign the rank to each wireless network, the processor circuitry is arranged to:

assign the rank to each wireless network according to the amount of interference experienced by each wireless network and according to an associated data rate of each available channel of the one or more wireless networks.

26. The loT gateway appliance of claim 21, wherein the processor circuitry is arranged to:

determine an aggressor network and one or more victim networks from among the one or more wireless networks, wherein the aggressor network comprises a set of available channels of the plurality of available channels that cause interference with other ones of the plurality of available channels, and wherein each of the one or more victim networks comprise a set of the plurality of available channels under interference by the set of available channels of the aggressor network;

classify the one or more victim networks according to a type of interference caused by the aggressor network; and

generate the interference signature of the one or more victim networks to indicate the type of interference caused by the aggressor network.

27. The loT gateway appliance of claim 21, wherein the communication circuitry is arranged to perform another scan of environment, and the processor circuitry is to:

determine, based on the other scan, whether any other channels associated with a same wireless communication protocol employed by the wireless network associated with the selected available channel are operating on the selected available channel; and

select another available channel when at least one other channel associated with the same wireless communication protocol is operating on the selected available channel.