CN112616182B - Base station synchronization method based on communication module - Google Patents
Base station synchronization method based on communication module Download PDFInfo
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Abstract
The invention relates to the technical field of wireless communication, in particular to a base station synchronization method based on a communication module, which comprises the following steps: step S1, connecting the synchronous terminal module to the host base station, and synchronizing the synchronous terminal module with other peripheral base stations through an air interface mode; step S2, after the synchronous terminal module completes the synchronization with other peripheral base stations, the synchronous terminal module transmits the synchronous information to the host base station; and step S3, the host base station receives the synchronization information transmitted by the synchronization terminal module, and realizes network synchronization with other surrounding base stations according to the synchronization information. Compared with the prior art, the base station synchronization method based on the communication module is convenient to use, reduces the cost, has multiple systems and multiple frequency bands, increases the universality, and increases the possibility of synchronization among different systems and different operator equipment.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of wireless communication, in particular to a base station synchronization method based on a communication module.
[ background of the invention ]
Synchronization of radio base station equipment is a necessary step for reducing interference between base stations and performing efficient data transmission. Only when the synchronization is performed, the interference between the devices can be reduced, and the error rate is reduced, so that the effective transmission is performed. Currently, the base station synchronization methods mainly include:
(1) deploying a GNSS module on each base station device, and performing synchronous operation by receiving GNSS time information;
(2) network synchronization, as is common in IEEE 1588V 2;
(3) and (4) air interface synchronization, wherein the base station finds a reference cell in the macro network for synchronization.
Currently, each device of the GNSS synchronization method needs to be matched with a GNSS module and an antenna. Synchronous GNSS is subject to interference in some cases, affecting use, with limited use in indoor base stations. For the network synchronization mode, network reconstruction is required; also, a standard synchronization source is needed, which is usually to introduce GPS signals in the network and the master device, and to implement the dedicated function of the PTP master server, which is costly. For the air interface synchronization mode, the base station is required to support signals of the macro station, and generally, the base station can only support a few frequency bands and can only support a fixed system, so that few synchronization targets selectable for synchronization with the macro station are even difficult to find.
[ summary of the invention ]
In order to overcome the above problems, the present invention provides a base station synchronization method based on a communication module, which can effectively solve the above problems.
The invention provides a technical scheme for solving the technical problems, which comprises the following steps: a base station synchronization method based on a communication module is provided, which comprises the following steps:
step S1, connecting the synchronous terminal module to the host base station, and synchronizing the synchronous terminal module with other peripheral base stations through an air interface mode;
step S2, after the synchronous terminal module completes the synchronization with other peripheral base stations, the synchronous terminal module transmits the synchronous information to the host base station;
and step S3, the host base station receives the synchronization information transmitted by the synchronization terminal module, and realizes network synchronization with other surrounding base stations according to the synchronization information.
Preferably, the synchronous terminal module includes a main control processor, a baseband processing chip, a local clock, an output serial port and a radio frequency antenna, the baseband processing chip, the local clock and the output serial port are respectively connected to the main control processor, and the radio frequency antenna and the local clock are respectively connected to the baseband processing chip.
Preferably, the step S1 includes the following steps:
step S11, the synchronous terminal module is powered on and started, and macro station scanning is carried out on other surrounding base stations through the radio frequency antenna and the baseband processing chip;
step S12, after the synchronous terminal module scans the synchronous macro station, the synchronous macro station is defined as the target base station, and the synchronous terminal module obtains the downlink synchronization to the target base station;
in step S13, if the synchronization terminal module does not scan a macro station that can be synchronized, the step S12 is repeated until the target base station is determined and downlink synchronization is obtained for the target base station.
Preferably, the step S2 includes the following steps:
step S21, the host base station synchronizes with other surrounding base stations through a master synchronization mode, and after the master synchronization mode fails, the host base station sends a synchronization request to the synchronization terminal module;
step S22, the synchronization terminal module receives the synchronization request from the host base station and sends synchronization information to the host base station.
Preferably, in step S22, the synchronization termination module outputs a synchronization pulse 1PPS to the host base station.
Preferably, in step S1, the synchronous terminal module is a wireless communication module of a full network communication system.
Preferably, the wireless communication module adopts a wireless communication module of a specific standard.
Preferably, the home base station includes a synchronization unit therein, and the synchronization terminal module is connected to the synchronization unit in the home base station.
Preferably, the wireless communication module of the specific system is connected to the host base station in a pluggable manner.
Preferably, the wireless communication module of the specific system adopts a pluggable mini-PCIE interface.
Compared with the prior art, the base station synchronization method based on the communication module has the following beneficial effects;
1. the method has the advantages that the mode selection is provided besides the synchronization of the GPS and PTP networks and the synchronization of air interfaces, and the stability of the base station is improved;
2. the air interface synchronization of the base station can only detect the synchronization signal of the base station of the same standard, but the invention can realize the air interface synchronization between base station equipment of different standards and different operators, thus greatly increasing the source selection and the reliability of the air interface synchronization of the base station;
3. the system frame number and the synchronous pulse are output to the host base station by adopting the wireless communication module of the whole network communication type, the work of extra lead wires, power supply and the like is not needed, and the interface frame head pulse and the serial TOD data of the terminal module are directly added to the synchronous unit of the host base station, so that the implementation is simple and convenient;
4. the synchronous terminal module adopts a pluggable mini-PCIE interface, is convenient to replace when a synchronous system needs to be added, basically does not need to modify a host base station, and reduces the cost;
5. the host base station is a main control end selected by a synchronization mode, can autonomously determine the priority order of the synchronization mode, and does not influence the operation of any original synchronization mode of the host base station by adopting the mode of synchronizing other macro stations by using the synchronization terminal module provided by the invention.
[ description of the drawings ]
Fig. 1 is a schematic overall structure diagram of a base station synchronization method based on a communication module according to the present invention;
fig. 2 is a schematic structural diagram of a synchronization terminal module of the base station synchronization method based on a communication module according to the present invention;
fig. 3 is a flow chart of a base station synchronization method based on a communication module according to the present invention.
[ detailed description ] embodiments
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It should be noted that all directional indications (such as up, down, left, right, front, and back … …) in the embodiments of the present invention are limited to relative positions on a given view, not absolute positions.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
Referring to fig. 1 to 3, the base station synchronization method based on the communication module of the present invention includes the following steps:
step S1, connecting the synchronous terminal module to the host base station, and synchronizing the synchronous terminal module with other peripheral base stations through an air interface mode;
step S2, after the synchronous terminal module completes the synchronization with other peripheral base stations, the synchronous terminal module transmits the synchronous information to the host base station;
and step S3, the host base station receives the synchronization information transmitted by the synchronization terminal module, and realizes network synchronization with other surrounding base stations according to the synchronization information.
In step S1, the synchronization terminal module adopts a wireless communication module, and the wireless communication module has the characteristics of multiple systems and multiple frequency bands, and is better compatible with the peripheral network. The wireless communication module can adopt a wireless communication module of a full network communication mode and can be used for synchronizing with other surrounding base stations of any operators and any modes. The wireless communication module can adopt a wireless communication module with a specific system, and the wireless communication module with the specific system is connected to the host base station in a pluggable mode, so that wireless communication modules with different systems can be adopted according to the conditions of peripheral wireless networks. The wireless communication module with the specific system generally adopts a pluggable mini-PCIE interface, is convenient to replace when a synchronous system needs to be added, and does not need to modify a host base station. The host base station comprises a synchronization unit, and the synchronization terminal module is connected with the synchronization unit in the host base station.
The synchronous terminal module comprises a main control processor, a baseband processing chip, a local clock, an output serial port and a radio frequency antenna, wherein the baseband processing chip, the local clock and the output serial port are respectively connected to the main control processor, and the radio frequency antenna and the local clock are respectively connected to the baseband processing chip. The conventional communication module does not output time synchronization information, and the synchronization terminal module of the invention can send synchronization time information to the host base station through the local clock and the output serial port.
In the step S1, the method includes the following steps:
step S11, the synchronous terminal module is powered on and started, and macro station scanning is carried out on other surrounding base stations through the radio frequency antenna and the baseband processing chip;
step S12, after the synchronous terminal module scans the synchronous macro station, the synchronous macro station is defined as the target base station, and the synchronous terminal module obtains the downlink synchronization to the target base station;
step S13, if the synchronous terminal module does not scan the macro station which can be synchronized, the step S12 is repeated until the target base station is determined and the target base station is synchronized in downlink;
in the step S2, the method includes the following steps:
step S21, the host base station synchronizes with other surrounding base stations through a master synchronization mode, and after the master synchronization mode fails, the host base station sends a synchronization request to the synchronization terminal module;
step S22, the synchronization terminal module receives the synchronization request from the host base station and sends synchronization information to the host base station.
In step S22, the synchronization termination module outputs a synchronization pulse 1PPS to the host base station.
Compared with the prior art, the base station synchronization method based on the communication module has the following beneficial effects;
1. the method has the advantages that the mode selection is provided besides the synchronization of the GPS and PTP networks and the synchronization of air interfaces, and the stability of the base station is improved;
2. the air interface synchronization of the base station can only detect the synchronization signal of the base station of the same standard, but the invention can realize the air interface synchronization between base station equipment of different standards and different operators, thus greatly increasing the source selection and the reliability of the air interface synchronization of the base station;
3. the system frame number and the synchronous pulse are output to the host base station by adopting the wireless communication module of the whole network communication type, the work of extra lead wires, power supply and the like is not needed, and the interface frame head pulse and the serial TOD data of the terminal module are directly added to the synchronous unit of the host base station, so that the implementation is simple and convenient;
4. the synchronous terminal module adopts a pluggable mini-PCIE interface, is convenient to replace when a synchronous system needs to be added, basically does not need to modify a host base station, and reduces the cost;
5. the host base station is a main control end selected by a synchronization mode, can autonomously determine the priority order of the synchronization mode, and does not influence the operation of any original synchronization mode of the host base station by adopting the mode of synchronizing other macro stations by using the synchronization terminal module provided by the invention.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and any modifications, equivalents, improvements, etc. made within the spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. The base station synchronization method based on the communication module is characterized by comprising the following steps:
step S1, connecting the synchronous terminal module to the host base station, and synchronizing the synchronous terminal module with other peripheral base stations through an air interface mode;
step S2, after the synchronous terminal module completes the synchronization with other peripheral base stations, the synchronous terminal module transmits the synchronous information to the host base station;
step S3, the host base station receives the synchronous information transmitted by the synchronous terminal module, and realizes the network synchronization with other surrounding base stations according to the synchronous information;
in the step S1, the method includes the following steps:
step S11, the synchronous terminal module is powered on and started, and macro station scanning is carried out on other surrounding base stations through the radio frequency antenna and the baseband processing chip;
step S12, after the synchronous terminal module scans the synchronous macro station, the synchronous macro station is defined as the target base station, and the synchronous terminal module obtains the downlink synchronization to the target base station;
step S13, if the synchronous terminal module does not scan the macro station which can be synchronized, the step S12 is repeated until the target base station is determined and the target base station is synchronized in downlink;
in the step S2, the method includes the following steps:
step S21, the host base station synchronizes with other surrounding base stations through a master synchronization mode, and after the master synchronization mode fails, the host base station sends a synchronization request to the synchronization terminal module;
step S22, the synchronous terminal module receives the synchronous request of the host base station and sends synchronous information to the host base station;
the synchronous terminal module adopts a wireless communication module.
2. The base station synchronization method based on the communication module as claimed in claim 1, wherein the synchronization terminal module comprises a main control processor, a baseband processing chip, a local clock, an output serial port and a radio frequency antenna, the baseband processing chip, the local clock and the output serial port are respectively connected to the main control processor, and the radio frequency antenna and the local clock are respectively connected to the baseband processing chip.
3. The method for synchronizing base stations based on communication modules according to claim 1, wherein in step S22, the synchronization termination module outputs a synchronization pulse 1PPS to the host base station.
4. The method for synchronizing base stations according to claim 1, wherein in step S1, the synchronization terminal module synchronizes wireless communication modules of a network-wide communication system.
5. The method for synchronizing base stations based on communication modules as claimed in claim 1, wherein the wireless communication module employs a wireless communication module of a specific standard.
6. The method for synchronizing a base station based on a communication module according to claim 1, wherein the home base station includes a synchronization unit therein, and the synchronization terminal module is connected to the synchronization unit in the home base station.
7. The method as claimed in claim 5, wherein the wireless communication module of the specific standard is connected to the host base station in a pluggable manner.
8. The method of claim 7, wherein the wireless communication module of the specific system employs a pluggable mini-PCIE interface.
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Address after: 518000, Building 1, Block C, Section 1, Chuangzhi Cloud City, Liuxian Avenue, Xili Community, Xili Street, Nanshan District, Shenzhen City, Guangdong Province, China, 3701 Patentee after: Jiwei Communication Technology (Shenzhen) Co.,Ltd. Country or region after: China Address before: 518000 5D, building 3, Tingwei Industrial Park, No.6 Liufang Road, Xingdong community, Xin'an street, Bao'an District, Shenzhen City, Guangdong Province Patentee before: Kewei communication technology (Shenzhen) Co.,Ltd. Country or region before: China |