Method and apparatus for mitigating interference between devices of different wireless wide area networks
AssigneeMotorola Solutions, Inc.
InventorsISAM R. MAKHLOUF, MARK SHAHAF
Life of this patent
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Abstract
A portable communication device operating of a first WWAN can receive an identifier from a WLAN access point indicating that one or more devices operating on a second WWAN are in the vicinity of the WLAN access point. In response, the portable communication device invokes an interference mitigation process while the identifier indicates that devices operating on the second WWAN are present.
Claims20
A method, comprising:
- receiving, by a WLAN transceiver of a portable communication device, an identifier of a wireless local area network (WLAN) access point in a signal transmitted by the WLAN access point;
- determining, by the portable communication device, based at least in part on the identifier, that an interference mitigation measure is to be invoked in operating a wireless wide area network (WWAN) transceiver of the portable communication device;
- and
- in response to determining that the interference mitigation measure is to be invoked, configuring the WWAN transceiver to avoid using at least one frequency band of a WWAN air interface while accessing a WWAN over the WWAN air interface.
An apparatus, comprising:
- a wireless local area network (WLAN) transceiver;
- a wireless wide area network (WWAN) transceiver;
- a controller that operates the WLAN and WWAN transceivers and receives from the WLAN transceiver an identifier of a WLAN access point received by the WLAN transceiver in a signal transmitted by the WLAN access point, the controller is further configured to determine, based at least in part on the identifier, that an interference mitigation measure is to be invoked in operating the WWAN transceiver and in response configures the WWAN transceiver to avoid using at least one frequency band of a WWAN air interface while accessing the WWAN over the WWAN air interface.
A method of operating a wireless local area network (WLAN) access point device to mitigate interference among devices operating on different wireless wide area networks (WWAN) that use nearby frequencies, comprising:
- transmitting, by the WLAN access point device, an identifier of the WLAN access point device;
- determining, by the WLAN access point device, that a condition has occurred that necessitates an interference mitigation measure be taken by devices operating on a first WWAN to mitigate out of band interference between the devices operating on the first WWAN and devices operating on a second WWAN;
- and
- responsive to determining that the condition has occurred, the WLAN access point device modifying the identifier transmitted by the WLAN access point device to indicate to the devices operating on the first WWAN to commence an interference mitigation process.
Dependencies are inferred from the claim text.