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Method and network for realizing multi-sector base transceiver station clock cascade synchronization

A cascade synchronization, multi-sector technology, applied in the direction of synchronization device, synchronization information channel, communication between multiple stations, etc., can solve the problem of high clock cost, save material cost, save engineering cost, high reliability Effect

Inactive Publication Date: 2011-06-15
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a method and network for realizing multi-sector BTS clock cascade synchronization, so as to solve the defect of high cost in the clock synchronization process under the existing network architecture

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  • Method and network for realizing multi-sector base transceiver station clock cascade synchronization
  • Method and network for realizing multi-sector base transceiver station clock cascade synchronization
  • Method and network for realizing multi-sector base transceiver station clock cascade synchronization

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Embodiment Construction

[0040] The technical solution of the present invention will be described in more detail below with reference to the drawings and embodiments.

[0041] The basic idea of ​​the method of the present invention is: in a network formed jointly by a plurality of BTSs, including a master BTS and at least one slave BTS; wherein, only the master BTS is equipped with a GPS antenna;

[0042] After the master BTS obtains the GPS signal through its upper GPS antenna, it converts the GPS signal into a local synchronous clock signal, and transmits the synchronous clock signal to the above-mentioned slave BTSs respectively;

[0043] The slave BTS performs local clock synchronization according to the received synchronous clock signal of the master BTS.

[0044] Specifically, the main BTS converts the received GPS signal into a local synchronous clock in the following manner: After the main BTS parses the received GPS signal into a clock reference, the clock reference is converted into a local ...

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Abstract

The invention discloses a method and a network for realizing multi-sector base transceiver station clock cascade synchronization. The method comprises that: the network formed by uniting a plurality of base transceiver stations (BTS) comprises a master BTS and at least one slave BTS; only the master BTS is configured with a global positioning system (GPS) antenna; the master BTS acquires a GPS signal through the GPS antenna on the master BTS, converts the GPS signal into a local synchronous clock signal and transmits the synchronous clock signal to each slave BTS; and the slave BTS performs local clock synchronization after receiving the synchronous clock signal from the master BTS. The network is formed by uniting the plurality of BTSs, and comprises the master BTS and the at least one slave BTS, wherein only the master BTS is configured with the GPS antenna. The method and the network can save GPS related equipment comprising the GPS antenna and a GPS receiver required by the BTS, thereby greatly saving engineering cost and material cost.

Description

technical field [0001] The invention relates to the field of cellular communication, in particular to a method and network for realizing multi-sector BTS (Base Transceiver Station, Base Transceiver Station) clock cascade synchronization. Background technique [0002] In the field of cellular communication now, one BSC (Base Station Controller, base station controller) plus three BTSs are generally used for joint networking. For distributed base stations, it is called 1BBU (Building Baseband Unit, indoor baseband processing unit) +3RRU (Radio Remote Unit, radio remote unit) mode. The BSC is placed in the computer room environment and equipped with GPS (Global Positioning System, Global Positioning System) for clock synchronization; the BTS is placed in the outdoor environment, and the distance from the BSC may be several kilometers or even tens of kilometers, and uses optical fiber to communicate with the BSC and synchronize the clock. Each BTS is equipped with a directional...

Claims

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Application Information

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IPC IPC(8): H04W56/00H04W88/08H04B7/26
CPCH04L7/0008H04J3/0644
Inventor 孙威
Owner ZTE CORP
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