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Time service method, system and device of base station

A timing system and time technology, applied in the field of communication, can solve problems such as cost increase and lightning strike, and achieve the effect of reducing construction difficulty, cost and flexible location selection.

Active Publication Date: 2010-11-17
DATANG MOBILE COMM EQUIP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to at least solve one of the above-mentioned technical defects, especially to solve the problem in the prior art that the cost is increased due to radio frequency lines and lightning strikes are caused

Method used

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  • Time service method, system and device of base station
  • Time service method, system and device of base station
  • Time service method, system and device of base station

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Embodiment Construction

[0019] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0020] Such as figure 2 As shown, it is a flow chart of the time service method of the base station in the embodiment of the present invention, including the following steps:

[0021] In step S201, the ICU sends the search information to the OCU after being powered on, and also waits for the ICU to send the search information after the OCU is powered on.

[0022] In step S202, the OCU sends the basic information of the OCU to the ICU after receiving the search information.

[0023] In step S203, the ICU judges whether the OCU is norma...

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Abstract

The invention provides a time service method of a base station. In the method, an OCU (Outdoor Clock Unit) receives satellite signals, obtains time information and sends a clock synchronization message to an ICU (Indoor Clock Unit); and the ICU recovers local clock synchronization signals according to the clock synchronization message and the line delay between the OCU and the ICU. A satellite receiver can be arranged in a far place by the method, the OCU and the ICU can be connected through a common optical fiber by line coding. The method not only can greatly reduce the cost, but also can enable the receiver to have flexible site selection and reduce construction difficulty. Moreover, the base station does not need considering the lighting stroke problem caused by the receiver.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a time service method, system and device for a base station. Background technique [0002] At present, the time synchronization of NB (base station) in the mobile communication network is mainly realized by satellite system timing. Such as figure 1 As shown, it is a schematic diagram of the NB time synchronization scheme in the prior art, the antenna receives satellite signals (such as Beidou, GPS and other satellite signals), and transmits the radio frequency signal to the satellite signal receiver (such as Beidou receiver) in the NB through the radio frequency line , the satellite signal receiver recovers the clock, and outputs clock synchronization signals (such as PPS, Plus Per Second, second pulse) and time information (such as TOD, Time of Date, starting time) to the phase-locked loop in the NB, and the phase-locked loop will The locked time signal is sent to each ...

Claims

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Application Information

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IPC IPC(8): H04W56/00H04W88/08H04B7/26G01S5/02
Inventor 高峰谢子阳潘晨聪
Owner DATANG MOBILE COMM EQUIP CO LTD
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