Transmission parameter probing and searching for agile link quality adaptation

A method comprising:

• in response to receipt of one or more uplink signals from a first wireless apparatus over a wireless communication link, the one or more uplink signals being transmitted to a second wireless apparatus by the first wireless apparatus using a first transmission setting,
• determining, by the second wireless apparatus, whether a link quality of the wireless communication link falls outside of a predefined range,
• in response to determining that the link quality falls outside of the predefined range:
• determining, by the second wireless apparatus, at least first and second probing transmission settings that differ from each other and from the first transmission setting;
• sending by the second wireless apparatus, to the first wireless apparatus an instruction for the first wireless apparatus to use the first probing transmission setting in a first probing transmission and the second probing transmission setting in a second probing transmission;
• after both of the first probing transmission and the second probing transmission are to received from the first wireless apparatus, and in response to receipt of the first and second probing transmissions, determining, by the second wireless apparatus, a first probing link quality for the first probing transmission and a second probing link quality for the second probing transmission;
• selecting, by the second wireless apparatus, one of the first and second probing transmission settings based on the first probing link quality and the second probing link quality;
• and
• sending, by the second wireless apparatus, to the first wireless apparatus an instruction for the first wireless apparatus to use the selected one of the first and second probing transmission settings in future transmissions.

A method comprising:

• transmitting, by a first wireless apparatus, to a second wireless apparatus one or more uplink signals using a first transmission setting;
• determining, by the first wireless apparatus, whether a link quality of the communication link falls outside of a predefined range;
• and
• in response to determining that the link quality falls outside of the predefined range:
• determining, by the first wireless apparatus, at least first and second probing transmission settings that differ from each other and from the first transmission setting;
• transmitting, by the first wireless apparatus, to the second wireless apparatus a first probing signal using the first probing transmission setting and a second probing signal using the second probing transmission setting;
• after both of the first probing signal and the second probing signal are transmitted to the second wireless apparatus, receiving, by the first wireless apparatus, from the second wireless apparatus a message that indicates which of the first and second probing transmission settings is to be used in transmissions to the second wireless apparatus;
• and
• applying, by the first wireless apparatus, to a wireless interface one of the first and second probing transmission settings designated by the message for use with future transmissions to the second wireless apparatus.