Method and system for adaptive cell size management
View Patent ↗The present disclosure discloses a method and system for adaptive cell size management. The system can determine a minimum SNR value and one or more current environmental factors for a particular environment. Also, the system dynamically determines a minimum signal strength value for receiving wireless signals based on the minimum SNR value and the one or more current environmental factors, and configures a network device to receive signals with the minimum signal strength value. Alternatively, the system can estimate a particular coverage area such that a first set of wireless signals transmitted by devices located within the particular coverage area reach a network device at a minimum signal strength. The system then computes a transmission power such that a second set of wireless signals transmitted by the network device at the transmission power reaches an edge of the particular coverage area at a particular signal strength value.
1. A non-transitory computer readable medium comprising instructions which, when executed by a hardware processor, cause performance of operations comprising:
estimating a particular coverage area using a modulation and coding set (MCS) rate such that a first set of wireless signals transmitted by devices located within the particular coverage area reach a network device at a minimum signal strength, wherein estimating the particular coverage area includes determining a threshold de-authentication distance from an edge of the particular coverage area;
computing a transmission power to be used by the network device to transmit a second set of wireless signals such that the second set of wireless signals reach the edge of the particular coverage area at a particular signal strength value, wherein computing the transmission power includes modifying the MCS rate on a per-client basis;
determining a location of the devices within the particular coverage area;
configuring the network device to transmit the second set of signals using the transmission power; and
transmitting a de-authentication message to a client device of the devices in response to a location of the client device being within the particular coverage area and within the threshold de-authentication distance from the edge of the particular coverage area.
2. The medium of claim 1 , wherein the computing operation uses an estimates a transmission power used by the devices to transmit the first set of wireless signals.
3. The medium of claim 1 , wherein the particular signal strength value is defined by a network administrator.
4. The medium of claim 1 , wherein the particular signal strength value is determined based at least on a noise floor value.
5. The medium of claim 1 , wherein the particular signal strength value is determined based at least on an access point density value.
6. The medium of claim 1 , wherein the particular signal strength value is determined based at least on an environmental interference value.
7. The medium of claim 1 , wherein the particular signal strength value is determined based at least on an environmental path loss value.
8. The medium of claim 1 , wherein computing the transmission power comprises:
computing the transmission power to be used by the network device to transmit the second set of wireless signals such that the second set of wireless signals are received at a data rate based on the modified MCS rate used by the network device.
9. The medium of claim 1 , wherein the operations further comprise:
responsive to determining that a client device is near the edge of the particular coverage area, refraining from responding to probe requests received by the network device from the client device.
10. A method, comprising:
estimating, by a network device, a particular coverage area using a modulation and coding set (MCS) rate such that a first set of wireless signals transmitted by client devices located within the particular coverage area reach a network device at a minimum signal strength, wherein estimating the particular coverage area includes determining a threshold de-authentication distance from an edge of the particular coverage area;
computing a transmission power to be used by the network device to transmit a second set of wireless signals such that the second set of wireless signals reach the edge of the particular coverage area at a particular signal strength value, wherein computing the transmission power includes modifying the MCS rate on a per-client basis;
determining a location of the devices within the particular coverage area;
configuring the network device to transmit the second set of signals to the client devices using the transmission power; and
transmitting a de-authentication message to a client device of the devices in response to a location of the client device being within the particular coverage area and within the threshold de-authentication distance from the edge of the particular coverage area.
11. The method of claim 10 , wherein the plurality of environmental factors comprise a noise floor value.
12. The method of claim 10 , wherein the plurality of environmental factors comprise an access point density value.
13. The method of claim 10 , wherein the plurality of environmental factors comprise an environmental interference value.
14. The method of claim 10 , wherein the plurality of environmental factors comprise an environmental path loss value.
15. A non-transitory computer readable medium comprising instructions which, when executed by a hardware processor, cause performance of operations comprising:
estimating a particular coverage area using a minimum signal-to-noise ratio value and a modulation and coding set (MCS) rate that is based on the minimum signal-to-noise ratio value such that a first set of wireless signals transmitted by devices located near an edge of the particular coverage area reach a network device at a preconfigured minimum signal strength value, wherein the minimum signal-to-noise ratio is determined based on a plurality of environmental factors for a particular network environment that includes the network device and the devices, and wherein estimating the particular coverage area includes determining a threshold de-authentication distance from the edge of the particular coverage area;
computing a transmission power to be used by the network device to transmit a second set of wireless signals such that the second set of wireless signals reach the edge of the particular coverage area at a second signal strength value, wherein computing the transmission power includes modifying the MCS rate on a per-client basis;
determining a location of the devices within the particular coverage area;
configuring the network device to transmit the second set of wireless signals to the devices using the transmission power; and
transmitting a de-authentication message to a client device of the devices in response to a location of the client device being within the particular coverage area and within the threshold de-authentication distance from the edge of the particular coverage area.
16. The medium of claim 15 , wherein the second signal strength value is greater than the minimum signal strength value.
17. The medium of claim 15 , wherein the plurality of environmental factors comprise a noise floor value.
18. The medium of claim 15 , wherein the plurality of environmental factors comprise an access point density value.
19. The medium of claim 15 , wherein the plurality of environmental factors comprise an environmental interference value.
20. The medium of claim 15 , wherein the plurality of environmental factors comprise an environmental path loss value.