US 7,408,907 B2 · System and method for management of a shared frequency band using client-specific management techniques

Abstract

A system and method are provided for managing communication with a plurality of wireless client devices operating in a radio frequency band shared by other types of devices, comprising a step of controlling at least one parameter associated with radio communication with each of the plurality of wireless devices based on the radio frequency environment associated with each corresponding one of the plurality of wireless client devices. Spectrum profile information describing the radio frequency environment (activity in the frequency band) at a wireless client device is sent to the wireless base station device (where the parameter controls are made) from either a wireless client device or another radio device in the proximity of one or more wireless client devices that is capable of generating the spectrum profile information. The spectrum profile information may include information identifying signals that are occurring in the frequency band in the proximity of a wireless client device. Examples of parameters that may be controlled at the wireless base station device include packet fragmentation threshold (the length of a data packet), transmission data rate and transmission scheduling (synchronizing a transmission to quiescent intervals of one or more periodic interfering signals).

Claims15

Dependent claims

A method for managing wireless communications between a wireless network base station device and a plurality of wireless client devices using a non-frequency hopping communication protocol operating on a wireless network in a radio frequency band that is shared by devices that are not part of the wireless network, comprising:

monitoring the radio frequency band in proximity to each of the plurality of wireless client devices for radio frequency energy associated with devices that are not part of the wireless network;
generating spectrum profile information specific to each wireless client device based on said monitoring, wherein generating comprises generating spectrum profile information describing activity in the radio frequency band at positions proximate to each of the plurality of wireless client devices, wherein the spectrum profile information includes information identifying signals determined to be occurring that are from devices that are not using said non-frequency hopping communication protocol and are not part of the wireless network but which interfere with radio communications between the wireless network base station and the respective wireless client devices;
transmitting the spectrum profile information obtained in proximity to each of the plurality of wireless client devices to said wireless network base station device;
and
at the wireless network base station device, receiving the spectrum profile information associated with the respective wireless client devices and adjusting a parameter of said non-frequency hopping communication protocol at the wireless network base station device when the wireless network base station device communicates with a particular wireless client device based on the spectrum profile information associated with the particular wireless client device.

2 more elements

A wireless radio communication system comprising:

a. a wireless network base station device;
and
b. a plurality of wireless client devices that conduct two-way wireless communication with the wireless network base station device on a wireless network using a non-frequency hopping communication protocol in a radio frequency band shared by devices that are not part of the wireless network;
c. wherein the wireless network base station device stores client-specific spectrum profile information describing activity in the radio frequency band that is not associated with the wireless network and that affects radio communication between corresponding ones of the plurality of wireless client devices and the wireless network base station device, wherein the client-specific spectrum profile information includes information identifying signals that are from devices that are not using said non-frequency hopping communication protocol and are not part of the wireless network but which interfere with radio communications between the wireless network base station device and a respective wireless client device, wherein the wireless network base station device adjusts a parameter of said non-frequency hopping communication protocol when communicating with individual wireless client devices according to the client-specific spectrum profile information for corresponding wireless client devices.

1 more element

A processor readable medium storing instructions that, when executed by a processor in a wireless network base station device, cause the processor to control radio communication according to a non-frequency hopping communication protocol between the wireless network base station device and respective ones of a plurality of wireless client devices, comprising:

storing client-specific spectrum profile information describing activity in a radio frequency band including information identifying signals that are from devices that do not use the non-frequency hopping communication protocol and are not part of the wireless network but which interfere with radio communication between the wireless network base station device and a respective wireless client device;
and
adjusting a parameter of the non-frequency hopping communication protocol when the wireless network base station device communicates with a particular wireless client device based on the client-specific spectrum profile information for the particular wireless client device.

Dependencies are inferred from the claim text.

System and method for management of a shared frequency band using client-specific management techniques

Life of this patent

System and method for management of a shared frequency band using client-specific management techniques

Life of this patent

Abstract

Claims15