Patent ID: 11962384
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Telecommunications (Electrical engineering)
Classification: CPC H | IPC H

Claim 5:
6. The apparatus of claim 5, further comprising:
a second splitter located at a symmetrical position between the third antenna and the fourth antenna, coupled to the vector detector, and configured to:
feed a second signal onto the third transmission channel through the third endpoint; and
feed the second signal onto the fourth transmission channel through the fourth endpoint,

wherein the first correction coupling channel is configured to feed the second signal onto the first transmission channel through the first endpoint,
wherein the second correction coupling channel is configured to feed the second signal onto the second transmission channel through the second endpoint, and
wherein when the second splitter feeds the second signal, the vector detector is further configured to:
detect a fifth signal vector based on a fifth feedback signal from the first transmission channel;
detect a sixth signal vector based on a sixth feedback signal from the second transmission channel;
detect a seventh signal vector based on a seventh feedback signal from the third transmission channel; and
detect an eighth signal vector based on an eighth feedback signal from the fourth transmission channel,
wherein transmission directions of the third feedback signal and the fifth feedback signal are opposite on the first correction coupling channel,
wherein transmission directions of the fourth feedback signal and the sixth feedback signal are opposite on the second correction coupling channel,
wherein the first signal vector, the third signal vector, the fifth signal vector, and the seventh signal vector correct a deviation between the first transmission channel and the third transmission channel, and
wherein the second signal vector, the fourth signal vector, the sixth signal vector, and the eighth signal vector correct a deviation between the second transmission channel and the fourth transmission channel.