Patent ID: 9408090
Filing Date: 2016-08-02
CPC Classification: H04Q,H04W

Claim Text:
1. A method for determining capabilities of a first communication device in a wireless network, wherein the wireless network is configured to use a first guard interval between symbols or a second guard interval between symbols, wherein the first guard interval has a length shorter than a length of the second guard interval, the method comprising: analyzing, at a second communication device, a field in a data unit received from the first communication device to determine a set of two or more modulation and coding schemes (MCSs) supported by the first communication device and to determine whether one or more MCSs in the set of two or more MCSs are supported by the first communication device when using the first guard interval, including, utilizing, at the second communication device, i) one MCS in the set of two or more MCSs and ii) the first guard interval a) when communicating with the first communication device and b) when it is determined that the one MCS is supported by the first communication device when using the first guard interval.