Patent ID: 11889436
Assignee: QUALCOMM INCORPORATED
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 27:
28. A mobile device in a wireless network configured for calibration of group delay, the mobile device comprising:
means for sending a first signal on a transmission path;
means for 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;
means for 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
means for setting a measured processing delay of the mobile device based on the transmission and reception group delay within the mobile device.