Clock control method of multi-reference source input, device and base station

A clock control and reference source technology, applied in the direction of synchronization devices, electrical components, wireless communication, etc., can solve problems such as not provided, achieve output clock stability, and ensure the effect of output quality

Active Publication Date: 2012-02-08
ZTE CORP
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] However, the related technical solution of how to control the local clock when switching between multiple reference sources is not provided in the prior art

Method used

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  • Clock control method of multi-reference source input, device and base station
  • Clock control method of multi-reference source input, device and base station
  • Clock control method of multi-reference source input, device and base station

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Embodiment Construction

[0060] In this embodiment, when performing clock control input by multiple reference sources, first obtain the current clock control parameters of the local clock, then calculate the clock control parameters according to the current clock control parameters and the selected reference source, and then calculate the clock control parameters according to The calculated clock control parameters are used to adjust the local clock step by step, so that the local clock is synchronized with the selected reference source. A valid reference source is selected, thereby completing the switching process between reference sources.

[0061] In this embodiment, in order to effectively manage multiple reference sources better, a reference source policy may be preset. Of course, the reference source strategy can also be set or adjusted during actual application. The reference source strategy can be divided into a public strategy and a dedicated strategy, where the public strategy is mainly for...

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Abstract

The invention provides a clock control method of multi-reference source input, a device and a base station and belongs to the field of mobile communication. The clock control method comprises the following steps: A, selecting a first reference resource used for local clock synchronization from multiple reference sources; B, acquiring the current clock control parameters of a local clock; C, computing a first clock control parameter according to the current clock control parameters by the first reference source, wherein the first clock control parameter is used for synchronously adjusting the local clock; and D, adjusting the local clock in a stepping mode according to the first clock control parameter so as to make the local clock synchronous with the first reference source. When the reference sources are switched, the local clock can be ensured to be synchronized from the original reference source clock and smoothly transited to be synchronous with a new reference source.

Description

technical field [0001] The invention belongs to the field of mobile communication, and in particular relates to a multi-reference source input clock control method, device and base station. Background technique [0002] If the base station can work normally, it must be synchronized with the clock of the transmission equipment or the clock of the superior base station. For the base station, in order to complete the clock synchronization with the transmission equipment, it must receive the reference source input by the transmission equipment to the base station, and use the input reference source to synchronize with the local clock, in order to complete the subsequent work and tasks of the base station. [0003] However, due to different countries, different regions, different environments and different operators using different transmission equipment, the reference source that the transmission equipment can provide to the base station has various forms, such as GPS (Global Po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04W56/00
CPCH04W56/00
Inventor 崔文会邱文才何祎
Owner ZTE CORP
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