Modem and network search method of modem
AssigneeHuawei Device Co., Ltd.
InventorsYu Deng, Konggang Wei
Life of this patent
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Abstract
The present application provides a modem and a network search method of the modem. The method includes: sampling a signal level value and a signal quality value of a serving cell; obtaining a signal power condition according to the signal level value, and obtaining a signal stability condition according to the signal quality value; and when both the signal power condition and the signal stability condition are higher than set conditions, determining a network search state as an off state. In embodiments of the present application, power consumption and a workload may be reduced.
Claims10
A network search method performed by a modem, comprising:
- periodically sampling signals of a serving cell so as to obtain at least two signal level values and at least two signal quality values of the serving cell;
- determining a signal power condition according to the signal level values, and determining a signal stability condition according to the signal quality values;
- when both the signal power condition and the signal stability condition are better than their respective preset condition thresholds, setting a network search state of the modem as an off state, wherein the network search state of the modem includes an off state and a start state, when the modem is in the off state, a network search operation is not performed by the modem;
- determining a signal level change condition according to the signal level values;
- determining, according to the signal level change condition, whether signal strength of the serving cell decreases monotonically;
- and
- when it is determined that the signal strength of the serving cell decreases monotonically, setting the network search state of the modem as the start state, wherein when the modem is in the start state, the network search operation is performed for reselecting another serving cell.
A modem capable of being served by a cellular communication network, comprising:
- a signal sampling unit, configured to periodically sample signals of a serving cell periodically so as to obtain at least two signal level values and at least two signal quality values of the serving cell;
- a determining unit, configured to determine a signal power condition according to the signal level values, and a signal stability condition according to the signal quality values;
- and
- a state setting unit, configured to, when both the signal power condition and the signal stability condition are better than their respective preset condition thresholds, set a network search state of the modem as an off state, wherein the network search state of the modem includes an off state and a start state, when the modem is in the off state, a network search operation is not performed by the modem,
- wherein the determining unit is further configured to determine a signal level change condition according to the signal level values;
- and, according to the signal level change condition, determine whether signal strength of the serving cell decreases monotonically;
- and
- the state setting unit is further configured to, when it is determined that the signal strength of the serving cell decreases monotonically, set the network search state of the modem as the start state, wherein when the modem is in the start state, the network search operation is performed by the modem for reselecting another serving cell.
Dependencies are inferred from the claim text.