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Patent Searching and Data


Title:
METHOD AND APPARATUS FOR CALIBRATING TDMA TIME SLOT SYNCHRONIZATION BETWEEN MASTER AND SLAVE MACHINES
Document Type and Number:
WIPO Patent Application WO/2018/227830
Kind Code:
A1
Abstract:
The present application relates to a method and apparatus for calibrating TDMA time slot synchronization between master and slave machines. The method comprises: at least one slave machine receiving a synchronization frame from a master machine, wherein the synchronization frame comprises a first count value of a timing counter in the master machine; at least one of the slave machines parsing the synchronization frame to obtain the first count value; and with regard to each slave machine, adjusting a TDMA time slot of the slave machine according to the first count value and a second count value of a timing counter in the slave machine, so that the TDMA time slot of the slave machine is kept synchronized with a TDMA time slot of the master machine. It can be seen that in the present application, respective clock sources of a master machine and a slave machine are directly used to carry out synchronization, and an RTC clock source and a GPS module do not need to be added, thus improving accuracy and reducing costs.

Inventors:
ZHANG HAIJUN (CN)
HUANG GUANGHUI (CN)
WU SHIWEI (CN)
ZHANG JIE (CN)
Application Number:
PCT/CN2017/105618
Publication Date:
December 20, 2018
Filing Date:
October 11, 2017
Export Citation:
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Assignee:
HARXON CORP (CN)
International Classes:
H04J3/06; H04W56/00
Foreign References:
CN107040327A2017-08-11
CN106413075A2017-02-15
CN1905424A2007-01-31
JPH0918941A1997-01-17
Other References:
See also references of EP 3444975A4
None
Attorney, Agent or Firm:
BEIJING HARTEND INTELLECTUAL PROPERTY AGENCY CO., LTD (CN)
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