Time calibration method and device

摘要

Disclosed are a time calibration method and device. The method includes: a mobile terminal determines the local time where the mobile terminal is located according to the time data in a received GPS navigation message and time zone information about the mobile terminal (S102); and the mobile terminal performing time calibration on itself according to the local time where it is located (S104). The embodiments of the present disclosure can solve the problem that a mobile terminal cannot precisely adjust the time automatically if there is no accurate reference time or if there is no network coverage.

主权项

1. A time calibration method, comprising:
a mobile terminal determining local time where the mobile terminal is located according to time data in a received Global Positioning System (GPS) navigation message and time zone information about the mobile terminal; and the mobile terminal performing time calibration on itself according to the local time where it is located; wherein the mobile terminal determining the local time where the mobile terminal is located according to the time data in the received GPS navigation message and time zone information about the mobile terminal comprises: the mobile terminal parsing the time data and obtaining local Universal Time Coordinated (UTC) time of the mobile terminal; and the mobile terminal determining the local time where the mobile terminal is located according to the local UTC time and the time zone information about the mobile terminal; wherein the mobile terminal parsing the time data and obtaining the local UTC time of the mobile terminal comprises: the mobile terminal parsing the time data and obtaining a Handover Word (HOW) of each subframe; the mobile terminal reading Time Of Week (TOW) in the HOW, wherein the TOW records the UTC microsecond number of sending time of the subframe; and the mobile terminal calculating a UTC timestamp of the sending time of each subframe by combining the UTC microsecond number and the week number contained in a first subframe which is in a frame where the subframe is located.