Cross-core calibration in a multi-radio system

Details Cross-core calibration in a multi-radio system Cross-core calibration in a multi-radio system

2006-02-21

2009-11-10

Vo, Nguyen (Department: 2618)

Telecommunications

Transmitter and receiver at separate stations

Having measuring, testing, or monitoring of system or part

C455S067110, C455S115100, C455S115200, C342S174000, C342S368000

Reexamination Certificate

active

07616929

ABSTRACT:
A Radio Frequency (RF) transceiver includes a first RF transceiver group, a second RF transceiver group, local oscillation circuitry, and calibration control circuitry. Each of the RF transceiver group has an RF transmitter and an RF receiver. The local oscillation circuitry selectively produces a local oscillation to the first RF transceiver group and to the second RF transceiver group. The calibration control circuitry is operable to initiate calibration operations including transmitter self calibration operations, first loopback calibration operations, and second loopback calibration operations. During loopback calibration operations, test signals produced by an RF transceiver group are looped back to an RF receiver of another RF transceiver group.

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