Patent ID: 9531498
Filing Date: 2016-12-27
CPC Classification: H04L

Claim Text:
1. A method for link adaptation in a network, the method comprising: generating, at a first network interface device, a first control field to include a first subfield indicating a request for link quality information, wherein generating the first control field comprises setting a second subfield of the first control field to a value indicating that the first control field is to be interpreted according to a first communication protocol and not according to a second communication protocol, wherein the second communication protocol does not permit a request for link quality information in a communication frame i) that is not a sounding frame, and ii) that is not a frame that announces a null data packet is to follow the communication frame; generating, at the first network interface device, a first communication frame having a first header, wherein causing, with the first network interface device, the first communication frame to be transmitted in order to prompt a communication device that conforms to the first communication protocol to send link quality information.