US 10,652,797 B2Granted

Channel switching based on interference events

AssigneeHewlett Packard Enterprise Development LP

InventorsDongwoon Hahn, Kishore Srimattirumala, Nethra Muniyappa, Sachin Ganu, Rajini Balay, Sree Harsha, Mathieu Mercier

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Abstract

An example access point comprising: a memory; and a processor executing instructions stored in the memory to: determine a first interference event while operating on a first channel, wherein the first channel is designated to the access point in a global channel plan by a network controller based on a global view of a wireless network; switch to operate on a second channel from the first channel for a first amount of time in response to the first interference event; determine a second interference event of the same event type as the first interference event on the first channel, wherein the second interference event is the same event type as the first interference event; and switch to operate on the second channel from the first channel for a longer amount of time than the first amount of time, wherein the second channel is selected based on a local view of the wireless network by the access point.

Claims16

Dependent claims

An access point, comprising:

a memory;
and
a processor executing instructions stored in the memory to:
determine a first interference event of a first event type while operating on a first channel, wherein the first channel is designated to the access point in a global channel plan by a network controller based on a global view of a wireless network;
switch to operate on a second channel from the first channel for a first amount of time in response to the first interference event;
switch back to operate on the first channel from the second channel upon expiration of the first amount of time;
determine a second interference event on the first channel;
and
for the second interference event:
upon determining that the second interference event is of a second event type that is different than the first event type, switch to operate on the second channel from the first channel for the first amount of time, or
upon determining that the second interference event is of the first event type, switch to operate on the second channel from the first channel for a second amount of time that is longer than the first amount of time;
wherein the second channel is selected based on a local view of the wireless network by the access point.

9 more elements

A system, comprising:

an access point;
a memory;
and
a processor executing instructions stored in the memory to:
determine a number of interference events while operating on a first channel, wherein the first channel is designated to the access point in a global channel plan by a network controller based on a global view of a wireless network;
determine a first interference event while operating on the first channel;
switch to operate on a second channel from the first channel for a first amount of time in response to the first interference event;
switch to operate on the second channel for a first amount of time in response to the first interference event;
switch back to operate on the first channel from the second channel upon expiration of the first amount of time;
determine a second interference event on the first channel;
and
switch to operate on the second channel from the first channel, wherein:
an amount of time for the operation to be switched to the second channel is the first amount of time upon determining that an event type of the second interference event is of a different event type than the first interference event, or
an amount of time for the operation to be switched to the second channel is extended to a second amount of time that is longer than the first amount of time upon determining that an event type of the second interference event is of a same event type as the first interference event.

11 more elements

Dependencies are inferred from the claim text.

Facts

Application: 15/795,750Filed 27 Oct 2017
Published: US 2019/0132780 A12 May 2019
Granted: 12 May 2020
Term ends: Not estimatedThe source records don’t support an estimate.

Classification8 codes

H04W 36/20
Performing reselection for specific purposes: for optimising the interference level
H04W 36/06
Hand-off or reselection arrangements: reselecting a communication resource in the serving access point
H04W 36/302
By measured or perceived connection quality data: due to low signal strength
H04W 36/362
By user or terminal equipment: conditional handover