Title:
ACCURATE CROSS-PHASE ESTIMATION FOR DUAL POLARIZED MICROWAVE TRANSCEIVER
Document Type and Number:
WIPO Patent Application WO/2017/161930
Kind Code:
A1
Abstract:
Cross-phase interference occurs in dual polarized or orthogonal polarized microwave links when independent local oscillators (LOs) are utilized in each outdoor unit (ODU) transceiver operating on the same frequency channel. If the cross-phase noise is not compensated the performance of the microwave link will be degraded. In order to reduce cross-phase noise two or more pilot symbols are utilized to enable cross-phase noise estimates to be determined at the receiver of the microwave link. The pilot symbols enable a cross-phase noise compensation factor to be determined for the signal from the one or more cross-phase noise estimates. The received signal can then be compensated using the estimated cross-phase noise compensation factor.
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Inventors:
SHAHMOHAMMADIAN HODA (CA)
AHARONY AHIKAM (CA)
AHARONY AHIKAM (CA)
Application Number:
PCT/CN2016/110796
Publication Date:
September 28, 2017
Filing Date:
December 19, 2016
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H04B1/10
Domestic Patent References:
| WO2007057911A2 | 2007-05-24 | |||
| WO2015149373A1 | 2015-10-08 | |||
| WO2015112048A1 | 2015-07-30 |
Foreign References:
| US4090137A | 1978-05-16 | |||
| US5710799A | 1998-01-20 |
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