CPC H04W 56/0005 (2013.01) [H04W 56/004 (2013.01); H04W 56/009 (2013.01)] | 29 Claims |
1. A method of calibration of group delay within a mobile device in a wireless network, the method comprising:
sending a first signal on a transmission path;
receiving the first signal on a reception path, wherein the first signal sent on the transmission path by the mobile device is fed back by the mobile device in a closed loop and received by the mobile device on the reception path, wherein the closed loop comprises a near field radiated closed loop that includes a first antenna of the mobile device that transmits the first signal and a second antenna of the mobile device that receives the first signal;
determining a transmission and reception group delay within the mobile device based on at least (1) a time of transmission of the first signal on the transmission path at a modem, (2) a time of arrival of the first signal on the reception path at the modem, and (3) a reduction in a first time between the time of transmission and the time of arrival by a second time associated with a coupling path between the first antenna and the second antenna; and
setting a measured processing delay of the mobile device based on the transmission and reception group delay within the mobile device.
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