Title:
PHASE SYNCHRONIZATION APPARATUS, PHASE SYNCHRONIZATION SYSTEM AND TRANSCEIVING APPARATUS
Document Type and Number:
WIPO Patent Application WO/2020/237690
Kind Code:
A1
Abstract:
A phase synchronization apparatus, a phase synchronization system and a transceiving apparatus, which are used to provide, to each radio-frequency transceiver chip in a multi-chip splicing scheme, a local oscillation signal with a consistent phase. The phase synchronization system comprises: a first radio-frequency transceiver chip and a second radio-frequency transceiver chip, wherein the first radio-frequency transceiver chip comprises a first phase locked loop and a first control circuit; the second radio-frequency transceiver chip comprises a second phase locked loop; the first phase locked loop is used to generate a first local oscillation signal; the second phase locked loop is used to generate a second local oscillation signal; and the first control circuit is used to perform detection according to the first local oscillation signal and the second local oscillation signal to obtain a first phase difference, to generate a first control signal according to the first phase difference, and to perform, using the first control signal, phase control on the first phase locked loop or phase control on the second phase locked loop.
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Inventors:
GAO PENG (CN)
Application Number:
PCT/CN2019/089705
Publication Date:
December 03, 2020
Filing Date:
May 31, 2019
Export Citation:
Assignee:
HUAWEI TECH CO LTD (CN)
International Classes:
H03L7/18; H03L7/099
Foreign References:
| CN107347006A | 2017-11-14 | |||
| CN107786764A | 2018-03-09 | |||
| US6765977B1 | 2004-07-20 | |||
| CN1345482A | 2002-04-17 | |||
| CN105656484A | 2016-06-08 | |||
| CN104426544A | 2015-03-18 | |||
| CN105790760A | 2016-07-20 | |||
| CN107017877A | 2017-08-04 | |||
| US20110032040A1 | 2011-02-10 | |||
| CN108737000A | 2018-11-02 |
Other References:
See also references of EP 3968523A4
Attorney, Agent or Firm:
TDIP & PARTNERS (CN)
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