CN112865904A - Network element clock synchronization method and network element clock synchronization system of multimode base station - Google Patents
Network element clock synchronization method and network element clock synchronization system of multimode base station Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J3/00—Time-division multiplex systems
- H04J3/02—Details
- H04J3/06—Synchronising arrangements
- H04J3/0635—Clock or time synchronisation in a network
- H04J3/0638—Clock or time synchronisation among nodes; Internode synchronisation
- H04J3/0641—Change of the master or reference, e.g. take-over or failure of the master
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/04—Arrangements for maintaining operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
- H04W88/08—Access point devices
- H04W88/10—Access point devices adapted for operation in multiple networks, e.g. multi-mode access points
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Abstract
The embodiment of the invention discloses a network element clock synchronization method and a network element clock synchronization system of a multimode base station. The method is applied to a network element clock synchronization system of a multimode base station, and comprises the following steps: the master network element monitoring system determines a clock synchronization system as a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system, and if the master network element monitoring system determines that the master network element clock synchronization system is the master clock, the master network element monitoring system indicates the at least one sub-network element clock synchronization system to perform clock synchronization according to the master network element clock synchronization system; and if one of the sub-network element clock synchronization systems is determined to be the master clock, the master network element clock synchronization system is indicated to perform clock synchronization according to the sub-network element clock synchronization system serving as the master clock, and the other sub-network element clock synchronization systems perform clock synchronization according to the master network element clock synchronization system. The method can reduce the network establishment cost of the multimode base station.
Description
Technical Field
The present invention relates to the field of mobile communications technologies, and in particular, to a network element clock synchronization method and a network element clock synchronization system for a multimode base station.
Background
With the development of mobile communication network systems, multi-mode networks of the communication network systems coexist, and the application of multi-mode base stations is more and more extensive.
The multimode base station includes a plurality of network elements, and different network elements have different modes, for example, the multimode base station includes a fifth Generation Mobile communication (5G) mode network element, a fourth Generation Mobile communication (4G) mode network element, and a second Generation Mobile communication (2 d Generation communication technology, 2G) mode network element, and clock synchronization is very important for ensuring normal operation of each network element of the multimode base station.
However, in the prior art, the network establishment cost of the multimode base station is high.
Disclosure of Invention
In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a network element clock synchronization method and a network element clock synchronization system of a multimode base station.
In a first aspect, an embodiment of the present invention provides a network element clock synchronization method for a multimode base station, which is applied to a network element clock synchronization system for the multimode base station, where the network element clock synchronization system for the multimode base station includes: the system comprises a main network element clock synchronization system, a main network element monitoring system and at least one sub-network element clock synchronization system; the at least one sub-network element clock synchronization system is in communication connection with the main network element clock synchronization system respectively; the master network element clock synchronization system and the at least one sub-network element clock synchronization system are respectively in communication connection with the master network element monitoring system;
the network element clock synchronization method of the multimode base station comprises the following steps:
the master network element monitoring system determines a clock synchronization system as a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system, wherein the master clock performs clock synchronization according to an external clock signal;
if the master network element monitoring system determines that the master network element clock synchronization system is a master clock, the master network element monitoring system instructs the at least one sub-network element clock synchronization system to perform clock synchronization according to the master network element clock synchronization system; and if one of the sub-network element clock synchronization systems is determined to be the master clock, the master network element clock synchronization system is indicated to perform clock synchronization according to the sub-network element clock synchronization system serving as the master clock, and other sub-network element clock synchronization systems perform clock synchronization according to the master network element clock synchronization system.
Optionally, the determining, by the master network element monitoring system, that one clock synchronization system is a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system includes:
the master network element clock synchronization system serves as a master clock, self-healing is carried out by the master network element clock synchronization system when the clock synchronization is abnormal, and a clock synchronization abnormal signal is sent to the master network element monitoring system; wherein, the self-healing comprises: the master network element clock synchronization system sends clock synchronization request information to an external clock to request for acquiring a clock synchronization signal, if the clock synchronization signal is acquired, self-healing is successful, and if the clock synchronization signal is not acquired, self-healing is failed;
the master network element monitoring system receives a clock synchronization abnormal signal sent by the master network element clock synchronization system, and instructs the at least one sub-network element clock synchronization system to perform presynchronization according to the clock synchronization abnormal signal; wherein the pre-synchronizing comprises acquiring the external clock signal;
and the master network element monitoring system determines one clock synchronization system as a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system according to the self-healing result of the master network element clock synchronization system and the pre-synchronization result of the at least one sub-network element clock synchronization system.
Optionally, the determining, according to the self-healing result of the master network element clock synchronization system and the pre-synchronization result of the at least one sub-network element clock synchronization system, that one clock synchronization system is a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system includes:
and if the master network element clock synchronization system is successfully self-healed, the master network element monitoring system determines that the master network element clock synchronization system is a master clock and indicates the at least one sub-network element clock synchronization system to cancel presynchronization.
If the self-healing of the master network element clock synchronization system fails, and the pre-synchronization of at least one sub-network element synchronization system succeeds, the master network element monitoring system determines that one sub-network element clock synchronization system is the master clock according to the at least one sub-network element clock synchronization system successfully pre-synchronized.
Optionally, the determining, according to the at least one subnet meta-clock synchronization system with successful pre-synchronization, that one subnet meta-clock synchronization system is a master clock includes:
and the master network element monitoring system determines the sub-network element clock synchronization system corresponding to the network element with the highest priority as the master clock according to the priority of the network element corresponding to the at least one sub-network element clock synchronization system which is successfully presynchronized.
Optionally, the method for synchronizing the network element clock of the multimode base station further includes:
when the clock synchronization of the sub-network element clock synchronization system serving as the master clock is abnormal, the sub-network element clock synchronization system serving as the master clock performs self-healing and sends a clock synchronization abnormal signal to the master network element monitoring system;
the master network element monitoring system receives a clock synchronization abnormal signal sent by the sub-network element clock synchronization system serving as a master clock, indicates the master network element clock synchronization system and the other sub-network element clock synchronization systems to perform presynchronization, and determines one clock synchronization system from the master network element clock synchronization system and the at least one sub-network element clock synchronization system as the master clock according to a self-healing result of the sub-network element clock synchronization system serving as the master clock and presynchronization results of the master network element clock synchronization system and the other sub-network element clock synchronization systems.
Optionally, the determining, according to the self-healing result of the sub-network element clock synchronization system serving as the master clock and the pre-synchronization results of the master network element clock synchronization system and the other sub-network element clock synchronization systems, that one clock synchronization system is the master clock from among the master network element clock synchronization system and the at least one sub-network element clock synchronization system includes:
if the sub-network element clock synchronization system serving as the master clock is successfully self-healed, the master network element monitoring system determines that the sub-network element clock system is the master clock and indicates the master network element clock synchronization system and the other sub-network element clock synchronization systems to cancel presynchronization;
if the sub-network element clock synchronization system serving as the master clock fails to self-heal, the pre-synchronization of at least one clock synchronization system of the master network element clock synchronization system and the other sub-network element clock synchronization systems is successful, and the master network element monitoring system determines one clock synchronization system as the master clock from the master network element clock synchronization system and the other sub-network element clock synchronization systems which are successful in pre-synchronization.
Optionally, the determining, from the master network element clock synchronization system and the other sub-network element clock synchronization systems that are successfully presynchronized, that one clock synchronization system is a master clock includes:
and the master network element monitoring system determines the clock synchronization system corresponding to the network element with the highest priority as the master clock according to the priorities of the master network element clock synchronization system which is successfully presynchronized and the network elements corresponding to the other sub-network element clock synchronization systems.
Optionally, the network element clock synchronization system of the multimode base station further includes: the sub-network element clock synchronization system is in communication connection with the corresponding sub-network element monitoring system; the at least one sub-network element monitoring system is respectively in communication connection with the main network element monitoring system; and the master network element monitoring system is communicated with the corresponding sub-network element clock synchronization system through the sub-network element monitoring system.
In a second aspect, an embodiment of the present invention provides a network element clock synchronization system of a multimode base station, configured to execute any one of the network element clock synchronization methods of the multimode base station provided in the first aspect, where the network element clock synchronization system of the multimode base station includes: the system comprises a main network element clock synchronization system, a main network element monitoring system and at least one sub-network element clock synchronization system;
the at least one sub-network element clock synchronization system is respectively in communication connection with the main network element clock synchronization system; the master network element clock synchronization system and the at least one sub-network element clock synchronization system are respectively in communication connection with the master network element monitoring system;
the master network element monitoring system is used for determining one clock synchronization system as a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system, wherein the master clock performs clock synchronization according to an external clock signal; the master network element clock synchronization system is used for indicating the at least one sub-network element clock synchronization system to carry out clock synchronization when the master network element clock synchronization system is determined to be a master clock; the method comprises the steps that when one sub-network element clock synchronization system is determined to be a master clock, the master network element clock synchronization system is indicated to carry out clock synchronization, and other sub-network element clock synchronization systems carry out clock synchronization;
the master network element clock synchronization system is used for carrying out clock synchronization according to the clock of the sub-network element clock synchronization system as a master clock;
and the at least one sub-network element clock synchronization system is used for performing clock synchronization according to the main network element clock synchronization system.
Optionally, the system further comprises: the sub-network element clock synchronization system is in communication connection with the corresponding sub-network element monitoring system; the at least one sub-network element monitoring system is respectively in communication connection with the main network element monitoring system; and the master network element monitoring system is communicated with the corresponding sub-network element clock synchronization system through the sub-network element monitoring system.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following advantages:
in the technical scheme provided by the embodiment of the invention, a clock synchronization system is determined as a master clock from a master network element clock synchronization system and at least one sub-network element clock synchronization system through a master network element monitoring system, if the master network element clock synchronization system is the master clock, the master network element monitoring system indicates at least one sub-network element clock synchronization system to perform clock synchronization according to the master network element clock synchronization system, if one sub-network element clock synchronization system is the master clock, the master network element monitoring system indicates the master network element clock synchronization system to perform clock synchronization according to the sub-network element clock synchronization system serving as the master clock, and other sub-network element clock synchronization systems perform clock synchronization according to the master network element clock synchronization system, so that clock synchronization among multiple network elements in a multi-mode base station is realized. The network element clock synchronization method of the multimode base station provided by the embodiment of the invention does not need to arrange two clock plates in each network element, so that the cost of a single network element can be reduced, and the network establishment cost of the multimode base station is further reduced.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic structural diagram of a network element clock synchronization system of a multimode base station according to an embodiment of the present invention;
fig. 2 is a schematic flowchart of a network element clock synchronization method of a multimode base station according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of another method for synchronizing a network element clock of a multimode base station according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a network element clock synchronization method of a multimode base station according to another embodiment of the present invention;
fig. 5 is a schematic flowchart of a network element clock synchronization method of a multimode base station according to another embodiment of the present invention;
fig. 6 is a schematic flowchart of a network element clock synchronization method of a multimode base station according to another embodiment of the present invention;
fig. 7 is a schematic structural diagram of another network element clock synchronization system of a multimode base station according to an embodiment of the present invention.
100, a network element clock synchronization system of the multimode base station; 110. a main network element clock synchronization system; 120. a sub-network element clock synchronization system; 121. a first sub-network element clock synchronization system; 122. a second sub-network element clock synchronization system; 130. a main network element monitoring system; 140. a subnet element monitoring system; 141. a first subnet element monitoring system; 142. and a second subnet element monitoring system.
Detailed Description
In order that the above objects, features and advantages of the present invention may be more clearly understood, a solution of the present invention will be further described below. It should be noted that the embodiments of the present invention and features of the embodiments may be combined with each other without conflict.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, but the present invention may be practiced in other ways than those described herein; it is to be understood that the embodiments described in this specification are only some embodiments of the invention, and not all embodiments.
Fig. 1 is a schematic structural diagram of a network element clock synchronization system of a multimode base station according to an embodiment of the present invention, and as shown in fig. 1, a network element clock synchronization system 100 of a multimode base station includes: a master meta-clock synchronization system 110, a master meta-monitoring system 130 and at least one sub-network meta-clock synchronization system 120.
At least one sub-network element clock synchronization system 120 is respectively connected to the master network element clock synchronization system 110 in a communication manner, and the master network element clock synchronization system 110 and at least one sub-network element clock synchronization system 120 are respectively connected to the master network element monitoring system 130 in a communication manner.
A master clock synchronization system 130, configured to determine a clock synchronization system as a master clock from the master clock synchronization system 110 and the at least one sub-network clock synchronization system 120, where the master clock performs clock synchronization according to an external clock signal; for instructing the at least one sub-network unit clock synchronization system 120 to perform clock synchronization when the master network unit clock synchronization system 110 is determined to be the master clock; when one of the sub-network element clock synchronization systems 120 is determined to be the master clock, the master network element clock synchronization system 110 is instructed to perform clock synchronization, and the other sub-network element clock synchronization systems 120 perform clock synchronization.
A master clock synchronization system 110 for performing clock synchronization according to the sub-network clock synchronization system 120 as a master clock.
At least one sub-network element clock synchronization system 120 for performing clock synchronization according to the master network element clock synchronization system 110.
Illustratively, the multimode base station comprises a main network element, a first sub-network element and a second sub-network element, which are different in mode, for example, the main network element may be a 5G mode network element, the first sub-network element may be a 4G mode network element, and the second sub-network element may be a 2G mode network element. As shown in fig. 1, a network element clock synchronization system 100 of a multimode base station includes: the master meta-clock synchronization system 110, the first sub-network meta-clock synchronization system 121, the second sub-network meta-clock synchronization system 122, and the master meta-monitoring system 130, where the master meta-clock synchronization system 110 corresponds to a master meta-clock, the first sub-network meta-clock synchronization system 121 corresponds to a first sub-network, the second sub-network meta-clock synchronization system 122 corresponds to a second sub-network, the first sub-network meta-clock synchronization system 121 and the second sub-network meta-clock synchronization system 122 are respectively in communication connection with the master meta-clock synchronization system 110, and the master meta-clock synchronization system 110, the first sub-network meta-clock synchronization system 121, and the second sub-network meta-clock synchronization system 122 are respectively in communication connection with the master meta-monitoring system 130.
It should be noted that the network elements with different modes included in the multimode base station can be flexibly set according to actual requirements. In addition, fig. 1 only exemplarily shows that the network element clock synchronization system of the multimode base station includes two sub-network element clock synchronization systems, and in practical application, the number of the sub-network element clock synchronization systems can be flexibly set according to the number of the sub-network elements in the multimode base station.
Specifically, the master cell monitoring system 130 determines one clock synchronization system as the master clock from among the master cell clock synchronization system 110, the first sub-network cell clock synchronization system 121, and the second sub-network cell clock synchronization system 122. When it is determined that the master clock synchronization system 110 is the master clock, the master monitoring system 130 instructs the first sub-network clock synchronization system 121 and the second sub-network clock synchronization system 122 to perform clock synchronization, respectively, and at this time, the first sub-network clock synchronization system 121 and the second sub-network clock synchronization system 122 both perform clock synchronization according to the master clock synchronization system 110; when it is determined that the first sub-network element clock synchronization system 121 is the master clock, the master network element monitoring system 130 instructs the master network element clock synchronization system 110 and the second sub-network element clock synchronization system 122 to perform clock synchronization, at this time, the master network element clock synchronization system 110 performs clock synchronization according to the first sub-network element clock synchronization system 121, and the second sub-network element clock synchronization system 122 performs clock synchronization according to the master network element clock synchronization system 110; when it is determined that the second sub-network element clock synchronization system 122 is the master clock, the master network element monitoring system 130 instructs the master network element clock synchronization system 110 and the first sub-network element clock synchronization system 121 to perform clock synchronization, at this time, the master network element clock synchronization system 110 performs clock synchronization according to the second sub-network element clock synchronization system 122, the first sub-network element clock synchronization system 121 performs clock synchronization according to the master network element clock synchronization system 110, and finally, clock synchronization is achieved between network elements in the multimode base station. The network element clock synchronization system of the multimode base station provided by the embodiment of the invention does not need to arrange two clock boards in each network element, so that the cost of a single network element can be reduced, and the network establishment cost of the multimode base station is further reduced.
In summary, in the technical solution provided in the embodiment of the present invention, the master network element monitoring system determines one clock synchronization system as a master clock from the master network element clock synchronization system and at least one sub-network element clock synchronization system, if the master network element clock synchronization system is the master clock, the master network element monitoring system instructs at least one sub-network element clock synchronization system to perform clock synchronization according to the master network element clock synchronization system, if one of the sub-network element clock synchronization systems is the master clock, the master network element monitoring system instructs the master network element clock synchronization system to perform clock synchronization according to the sub-network element clock synchronization system serving as the master clock, and the other sub-network element clock synchronization systems perform clock synchronization according to the master network element clock synchronization system, thereby achieving clock synchronization between network elements in the multi-mode base station. The system does not need to arrange two clock boards in each network element, so that the cost of a single network element can be reduced, and the network establishment cost of the multimode base station is further reduced.
Fig. 2 is a schematic flowchart of a network element clock synchronization method of a multimode base station according to an embodiment of the present invention, where the network element clock synchronization method of the multimode base station according to the embodiment of the present invention is applied to a network element clock synchronization system 100 of the multimode base station, and as shown in fig. 2, the specific steps of the network element clock synchronization method of the multimode base station include:
s110, the master network element monitoring system determines a clock synchronization system as a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system.
Wherein the master clock performs clock synchronization according to an external clock signal.
Illustratively, the master cell monitoring system 130 determines one clock synchronization system as the master clock from among the master cell clock synchronization system 110, the first sub-network cell clock synchronization system 121, and the second sub-network cell clock synchronization system 122. The clock synchronization System can perform clock synchronization according to external clock signals provided by clock sources such as a Global Positioning System (GPS) clock source, a Beidou clock source, and a 1588 clock source, so that a clock of the clock synchronization System is a master clock.
In one possible case, the master unit monitoring system determines that the master unit clock synchronization system is the master clock, and executes 120. In another possible case, it is determined that one of the sub-network meta-clock synchronization systems is the master clock, and S130 is performed.
And S120, if the master network element monitoring system determines that the master network element clock synchronization system is the master clock, the master network element monitoring system instructs the at least one sub-network element clock synchronization system to perform clock synchronization according to the master network element clock synchronization system.
For example, if the master cell clock synchronization system 110 is the master clock, the master cell clock synchronization system notifies the master cell monitoring system 130, and the master cell monitoring system 130 instructs the first sub-cell clock synchronization system 121 and the second sub-cell clock synchronization system 122 to perform clock synchronization according to the master cell clock synchronization system 110.
S130, if the master network element monitoring system determines that one of the sub-network element clock synchronization systems is the master clock, the master network element clock synchronization system is indicated to perform clock synchronization according to the sub-network element clock synchronization system serving as the master clock, and other sub-network element clock synchronization systems perform clock synchronization according to the master network element clock synchronization system.
For example, if the first sub-network-unit clock synchronization system 121 is the master clock, the first sub-network-unit clock synchronization system 121 notifies the master network-unit monitoring system 130, and the master network-unit monitoring system 130 instructs the master network-unit clock synchronization system 110 to perform clock synchronization according to the first sub-network-unit clock synchronization system 121 and also instructs the second sub-network-unit clock synchronization system 122 to perform clock synchronization according to the master network-unit clock synchronization system 110. If the second sub-network element clock synchronization system 122 notifies the master network element monitoring system 130 of the second sub-network element clock synchronization system 122 as the master clock, the master network element monitoring system 130 instructs the master network element clock synchronization system 110 to perform clock synchronization according to the second sub-network element clock synchronization system 122, and also instructs the first sub-network element clock synchronization system 121 to perform clock synchronization according to the master network element clock synchronization system 110. And finally, realizing clock synchronization among network elements in the multimode base station.
In the technical scheme provided by the embodiment of the invention, a clock synchronization system is determined as a master clock from a master network element clock synchronization system and at least one sub-network element clock synchronization system through a master network element monitoring system, if the master network element clock synchronization system is the master clock, the master network element monitoring system indicates at least one sub-network element clock synchronization system to perform clock synchronization according to the master network element clock synchronization system, if one sub-network element clock synchronization system is the master clock, the master network element monitoring system indicates the master network element clock synchronization system to perform clock synchronization according to the sub-network element clock synchronization system serving as the master clock, and other sub-network element clock synchronization systems perform clock synchronization according to the master network element clock synchronization system, so that clock synchronization among multiple network elements in a multi-mode base station is realized. The network element clock synchronization method of the multimode base station provided by the embodiment of the invention does not need to arrange two clock plates in each network element, so that the cost of a single network element can be reduced, and the network establishment cost of the multimode base station is further reduced.
Optionally, fig. 3 is a schematic flow chart of another method for synchronizing network element clocks of a multimode base station according to an embodiment of the present invention, and fig. 3 is a description of a possible implementation manner of S110 based on the embodiment shown in fig. 2, as shown in fig. 3:
and S210, the master network element clock synchronization system serves as a master clock, self-healing is carried out by the master network element clock synchronization system when the clock synchronization is abnormal, and a clock synchronization abnormal signal is sent to the master network element monitoring system.
Wherein, the self-healing comprises: and the master network element clock synchronization system sends clock synchronization request information to an external clock to request for acquiring a clock synchronization signal, if the clock synchronization signal is acquired, self-healing is successful, and if the clock synchronization signal is not acquired, self-healing is failed.
For example, the master unit clock synchronization system 110 serves as a master clock, and if the master unit clock synchronization system 110 is out of clock synchronization, the master unit clock synchronization system 110 may try to perform clock synchronization again according to an external clock signal, that is, the master unit clock synchronization system 110 performs self-healing, and at the same time, the master unit clock synchronization system 110 sends a clock synchronization abnormal signal to the master unit monitoring system 130.
S220, the master network element monitoring system receives the clock synchronization abnormal signal sent by the master network element clock synchronization system, and instructs the at least one sub-network element clock synchronization system to perform presynchronization according to the clock synchronization abnormal signal.
Wherein the pre-synchronizing comprises acquiring the external clock signal.
With reference to the foregoing example, after receiving the clock synchronization abnormal signal sent by the master cell clock synchronization system 110, the master cell monitoring system 130 respectively instructs the first sub-cell clock synchronization system 121 and the second sub-cell clock synchronization system 122 to acquire an external clock signal, that is, respectively instructs the first sub-cell clock synchronization system 121 and the second sub-cell clock synchronization system 122 to perform presynchronization, so that the first sub-cell clock synchronization system 121 and the second sub-cell clock synchronization system 122 are prepared to switch to the master clock, and it is ensured that the first sub-cell clock synchronization system 121 and the second sub-cell clock synchronization system 122 can be quickly switched to the master clock, thereby reducing synchronization abnormality of each network element in the multimode base station and improving stability of the multimode base station.
And S230, the master network element monitoring system determines one clock synchronization system as a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system according to the self-healing result of the master network element clock synchronization system and the pre-synchronization result of the at least one sub-network element clock synchronization system.
In conjunction with the foregoing example, the master meta-clock monitoring system 130 determines one clock synchronization system from among the master meta-clock synchronization system 110, the first sub-meta-clock synchronization system 121, and the second sub-meta-clock synchronization system 122 as the master clock according to the self-healing result of the master meta-clock synchronization system 110, the presynchronization result of the first sub-meta-clock synchronization system 121, and the presynchronization result of the second sub-meta-clock synchronization system 122.
Fig. 4 shows a possible implementation manner of S230, where fig. 4 is a schematic flowchart of a network element clock synchronization method of a multimode base station according to another embodiment of the present invention, and the method includes:
s231, if the self-healing of the master network element clock synchronization system is successful, the master network element monitoring system determines that the master network element clock synchronization system is a master clock and indicates the at least one sub-network element clock synchronization system to cancel presynchronization.
For example, if the master meta-clock synchronization system 110 is self-healed successfully, the master meta-monitoring system 130 determines that the master meta-clock synchronization system 110 is the master clock, and the master meta-monitoring system 130 instructs the first sub-network meta-clock synchronization system 121 and the second sub-network meta-clock synchronization system 122 to cancel the presynchronization.
S232, if the self-healing of the master network element clock synchronization system fails, and the pre-synchronization of at least one of the sub-network element clock synchronization systems succeeds, the master network element monitoring system determines that one of the sub-network element clock synchronization systems is the master clock according to the at least one sub-network element clock synchronization system that succeeds in the pre-synchronization.
One possible scenario among others is: and if the self-healing of the master network element clock synchronization system fails and the pre-synchronization of one sub-network element synchronization system succeeds, determining the sub-network element clock synchronization system with the successful pre-synchronization as the master clock.
With reference to the foregoing example, if the master meta-clock synchronization system 110 fails to self-heal, the first sub-network meta-clock synchronization system 121 succeeds in presynchronization, and the second sub-network meta-clock synchronization system 122 fails in presynchronization, the master meta-monitoring system 130 determines that the first sub-network meta-clock synchronization system 121 is the master clock. If the master meta-clock synchronization system 110 fails to self-heal, the pre-synchronization of the second sub-network meta-clock synchronization system 122 succeeds, and the pre-synchronization of the first sub-network meta-clock synchronization system 121 fails, the master meta-clock monitoring system 130 determines that the second sub-network meta-clock synchronization system 122 is the master clock.
Another possible scenario is: and the master network element clock synchronization system fails to self-heal, wherein the pre-synchronization of at least two sub-network element clock synchronization systems is successful, and one sub-network element clock synchronization system is determined as the master clock from the at least two sub-network element clock synchronization systems which are successful in pre-synchronization.
Optionally, the determining that one sub-network meta-clock synchronization system is the master clock from at least two sub-network meta-clock synchronization systems with successful pre-synchronization includes, but is not limited to, the following possible implementation manners.
One possible implementation is: and the master network element monitoring system determines the sub-network element clock synchronization system corresponding to the network element with the highest priority as the master clock according to the priorities of the network elements corresponding to the at least two sub-network element clock synchronization systems which are successfully presynchronized.
Illustratively, the priority of the first sub-network element corresponding to the first sub-network element clock synchronization system 121 is higher than the priority of the second sub-network element corresponding to the second sub-network element clock synchronization system 122, and if the self-healing of the master network element clock synchronization system 110 fails and the pre-synchronization of the first sub-network element clock synchronization system 121 and the pre-synchronization of the second sub-network element clock synchronization system 122 succeeds, the master network element monitoring system 130 determines that the first sub-network element clock synchronization system 121 is the master clock.
In other embodiments, the priority of the second sub-network element corresponding to the second sub-network element clock synchronization system 122 may be higher than the priority of the first sub-network element corresponding to the first sub-network element clock synchronization system 121, and if the master network element clock synchronization system 110 fails to self-heal and the pre-synchronization of the first sub-network element clock synchronization system 121 and the second sub-network element clock synchronization system 122 succeeds, the master network element monitoring system 130 determines that the second sub-network element clock synchronization system 122 is the master clock.
Another possible implementation: and the master network element clock synchronization system fails to self-heal, wherein the pre-synchronization of at least two sub-network element clock synchronization systems is successful, and one sub-network element clock synchronization system is randomly determined to be the master clock from the at least two sub-network element clock synchronization systems which are successful in pre-synchronization.
In connection with the foregoing example, it is assumed that the master meta-clock synchronization system 110 fails to self-heal, the first sub-network meta-clock synchronization system 121 and the second sub-network meta-clock synchronization system 122 both succeed in presynchronization, and the master meta-clock monitoring system 130 randomly determines one sub-network meta-clock synchronization system as the master clock from the first sub-network meta-clock synchronization system 121 and the second sub-network meta-clock synchronization system 122.
Yet another possible scenario is: if the master meta-clock synchronization system 110 fails to self-heal and the first sub-network meta-clock synchronization system 121 and the second sub-network meta-clock synchronization system 122 both fail to pre-synchronize, the master meta-monitoring system 130 indicates that the master meta-clock synchronization system 110, the first sub-network meta-clock synchronization system 121, and the second sub-network meta-clock synchronization system 122 remain the same, and the multimode base station fails at this time.
Fig. 5 is a schematic flowchart of a method for synchronizing a network element clock of a multimode base station according to another embodiment of the present invention, where fig. 5 is based on the embodiment shown in fig. 4, and further includes: when the clock synchronization of the sub-network clock synchronization system is abnormal, the flow of the clock synchronization method is as shown in fig. 5:
and S240, when the clock synchronization of the sub-network element clock synchronization system serving as the master clock is abnormal, the sub-network element clock synchronization system serving as the master clock performs self-healing and sends a clock synchronization abnormal signal to the master network element monitoring system.
For example, if the clock synchronization of the first sub-network element clock synchronization system 121 as the master clock is abnormal, the first sub-network element clock synchronization system 121 self-heals, and at the same time, the first sub-network element clock synchronization system 121 sends a clock synchronization abnormal signal to the master network element monitoring system 130.
And S250, the master network element monitoring system receives the clock synchronization abnormal signal sent by the sub-network element clock synchronization system serving as the master clock, and indicates that the master network element clock synchronization system and the other sub-network element clock synchronization systems are presynchronized.
With reference to the foregoing example, after receiving the clock synchronization abnormal signal sent by the first sub-network element clock synchronization system 121, the master network element monitoring system 130 instructs the master network element clock synchronization system 110 and the second sub-network element clock synchronization system 122 to perform presynchronization, so that the master network element clock synchronization system 110 and the second sub-network element clock synchronization system 122 are ready to switch to the master clock, and it is ensured that the master network element clock synchronization system 110 and the second sub-network element clock synchronization system 122 can be switched to the master clock quickly, thereby reducing the synchronization abnormality of each network element in the multimode base station, and improving the stability of the multimode base station.
And S260, the master network element monitoring system determines one clock synchronization system as a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system according to the self-healing result of the sub-network element clock synchronization system as the master clock and the pre-synchronization results of the master network element clock synchronization system and the other sub-network element clock synchronization systems.
In conjunction with the foregoing example, the master meta-clock monitoring system 130 determines one clock synchronization system as the master clock from among the master meta-clock synchronization system 110, the first sub-network meta-clock synchronization system 121, and the second sub-network meta-clock synchronization system 122 according to the self-healing result of the first sub-network meta-clock synchronization system 121, the presynchronization result of the master meta-clock synchronization system 110, and the presynchronization result of the second sub-network meta-clock synchronization system 122.
Fig. 6 shows a possible implementation manner of S260, where fig. 6 is a schematic flow chart of a network element clock synchronization method of a multimode base station according to another embodiment of the present invention, and the method includes:
s261, if the sub-network element clock synchronization system serving as the master clock is self-healing successfully, the master network element monitoring system determines that the sub-network element clock system is the master clock, and instructs the master network element clock synchronization system and the other sub-network element clock synchronization systems to cancel presynchronization.
For example, if the first sub-network meta-clock synchronization system 121 serving as the master clock is self-healing successfully, the master meta-clock monitoring system 130 still determines that the first sub-network meta-clock synchronization system 121 is the master clock, and instructs the master meta-clock synchronization system 110 and the second sub-network meta-clock synchronization system 122 to cancel presynchronization.
S262, if the sub-network element clock synchronization system as the master clock fails to self-heal, the pre-synchronization of at least one of the master network element clock synchronization system and the other sub-network element clock synchronization systems is successful, and the master network element monitoring system determines a clock synchronization system as the master clock from the master network element clock synchronization system and the other sub-network element clock synchronization systems that are successful in pre-synchronization.
One possible scenario among others is: and if the self-healing of the sub-network element clock synchronization system serving as the master clock fails and the pre-synchronization of one clock synchronization system in the main network element clock synchronization system and other sub-network element clock synchronization systems succeeds, determining the clock synchronization system with the successful pre-synchronization as the master clock.
With reference to the foregoing example, if the first sub-network element clock synchronization system 121 serving as the master clock fails to self-heal, the master network element clock synchronization system 110 succeeds in presynchronization, and the second sub-network element clock synchronization system 122 fails in presynchronization, the master network element monitoring system 130 determines that the master network element clock synchronization system 110 is the master clock. If the first sub-network meta-clock synchronization system 121 serving as the master clock fails to self-heal, the second sub-network meta-clock synchronization system 122 succeeds in presynchronization, and the master network meta-clock synchronization system 110 fails in presynchronization, the master network meta-monitoring system 130 determines that the second sub-network meta-clock synchronization system 122 is the master clock.
Another possible scenario is: and if the self-healing of the sub-network element clock synchronization system serving as the master clock fails and the pre-synchronization of at least two clock synchronization systems in the main network element clock synchronization system and other sub-network element clock synchronization systems succeeds, determining one clock synchronization system as the master clock from the clock synchronization systems with successful pre-synchronization.
For example, if the first sub-network meta-clock synchronization system 121 serving as the master clock fails to self-heal and the master clock synchronization system 110 and the second sub-network meta-clock synchronization system 122 both succeed in pre-synchronization, the master cell monitoring system 130 determines that the master clock synchronization system 110 or the second sub-network meta-clock synchronization system 122 is the master clock.
Optionally, the determining that one clock synchronization system is the master clock from the master clock synchronization system and the other sub-network element clock synchronization systems with successful presynchronization includes, but is not limited to, the following possible implementation manners.
One possible implementation is: and the master network element monitoring system determines the clock synchronization system corresponding to the network element with the highest priority as the master clock according to the priorities of the network elements corresponding to the master network element clock synchronization system and other sub-network element clock synchronization systems which are successfully pre-synchronized.
Illustratively, the priority of the master network element corresponding to the master clock synchronization system 110 is higher than the priority of the second sub-network element corresponding to the second sub-network element clock synchronization system 122, and if the self-healing of the first sub-network element clock synchronization system 121 fails and the pre-synchronization of the master clock synchronization system 110 and the pre-synchronization of the second sub-network element clock synchronization system 122 succeeds, the master monitoring system 130 determines that the master clock synchronization system 110 is the master clock.
Another possible implementation is: and randomly determining a clock synchronization system as a main clock from the main network element clock synchronization system and the other sub-network element clock synchronization systems which are successfully pre-synchronized.
Yet another possible scenario is: if the first sub-network element clock synchronization system 121 serving as the master clock fails to self-heal and the master network element clock synchronization system 110 and the second sub-network element clock synchronization system 122 both fail to pre-synchronize, the master network element monitoring system 130 instructs the master network element clock synchronization system 110, the first sub-network element clock synchronization system 121, and the second sub-network element clock synchronization system 122 to maintain the original state, and the multimode base station at this time fails.
Fig. 7 is a schematic structural diagram of a network element clock synchronization system of a multimode base station according to another embodiment of the present invention, and as shown in fig. 7, based on the embodiment shown in fig. 1, the network element clock synchronization system 100 of the multimode base station further includes: the at least one sub-network element monitoring system 140, the sub-network element clock synchronization system 120 and the corresponding sub-network element monitoring system 140 are in communication connection, the at least one sub-network element monitoring system 140 is in communication connection with the main network element monitoring system 130, and the main network element monitoring system 130 communicates with the corresponding sub-network element clock synchronization system 120 through the sub-network element monitoring system 140.
Illustratively, as shown in fig. 7, the network element clock synchronization system 100 of the multimode base station includes: the master meta-clock synchronization system 110, the first sub-meta-clock synchronization system 121, the second sub-meta-clock synchronization system 122, the master meta-clock monitoring system 130, the first sub-meta-clock monitoring system 141, and the second sub-meta-clock monitoring system 142, wherein the first sub-meta-clock synchronization system 141 and the first sub-meta-clock synchronization system 121 are in communication connection, the second sub-meta-clock monitoring system 142 and the second sub-meta-clock synchronization system 122 are in communication connection, the first sub-meta-clock monitoring system 141 and the second sub-meta-clock monitoring system 142 are in communication connection with the master meta-clock synchronization system 130, the master meta-clock monitoring system 130 communicates with the first sub-meta-clock synchronization system 121 through the first sub-meta-clock monitoring system 141, and the master meta-clock synchronization system 130 communicates with the second sub-meta-clock synchronization system 122 through the second sub-meta-clock monitoring system 142.
It should be noted that fig. 7 only shows that the network element clock synchronization system 100 of the multimode base station includes two sub-network element monitoring systems 140 by way of example, and in practical applications, the number of the sub-network element monitoring systems 140 is flexibly set according to the number of the sub-network element clock synchronization systems 120.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A network element clock synchronization method of a multimode base station is characterized in that the method is applied to a network element clock synchronization system of the multimode base station, and the network element clock synchronization system of the multimode base station comprises the following steps: the system comprises a main network element clock synchronization system, a main network element monitoring system and at least one sub-network element clock synchronization system; the at least one sub-network element clock synchronization system is in communication connection with the main network element clock synchronization system respectively; the master network element clock synchronization system and the at least one sub-network element clock synchronization system are respectively in communication connection with the master network element monitoring system;
the network element clock synchronization method of the multimode base station comprises the following steps:
the master network element monitoring system determines a clock synchronization system as a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system, wherein the master clock performs clock synchronization according to an external clock signal;
if the master network element monitoring system determines that the master network element clock synchronization system is a master clock, the master network element monitoring system instructs the at least one sub-network element clock synchronization system to perform clock synchronization according to the master network element clock synchronization system; and if one of the sub-network element clock synchronization systems is determined to be the master clock, the master network element clock synchronization system is indicated to perform clock synchronization according to the sub-network element clock synchronization system serving as the master clock, and other sub-network element clock synchronization systems perform clock synchronization according to the master network element clock synchronization system.
2. The method as claimed in claim 1, wherein the determining, by the master cell monitoring system, one clock synchronization system as a master clock from the master cell clock synchronization system and the at least one sub-cell clock synchronization system comprises:
the master network element clock synchronization system serves as a master clock, self-healing is carried out by the master network element clock synchronization system when the clock synchronization is abnormal, and a clock synchronization abnormal signal is sent to the master network element monitoring system; wherein, the self-healing comprises: the master network element clock synchronization system sends clock synchronization request information to an external clock to request for acquiring a clock synchronization signal, if the clock synchronization signal is acquired, self-healing is successful, and if the clock synchronization signal is not acquired, self-healing is failed;
the master network element monitoring system receives a clock synchronization abnormal signal sent by the master network element clock synchronization system, and instructs the at least one sub-network element clock synchronization system to perform presynchronization according to the clock synchronization abnormal signal; wherein the pre-synchronizing comprises acquiring the external clock signal;
and the master network element monitoring system determines one clock synchronization system as a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system according to the self-healing result of the master network element clock synchronization system and the pre-synchronization result of the at least one sub-network element clock synchronization system.
3. The method according to claim 2, wherein the determining, from the self-healing result of the master clock synchronization system and the pre-synchronization result of the at least one sub-network element clock synchronization system, that one clock synchronization system is the master clock from among the master clock synchronization system and the at least one sub-network element clock synchronization system comprises:
if the master network element clock synchronization system is successfully self-healed, the master network element monitoring system determines that the master network element synchronization system is a master clock and indicates the at least one sub-network element clock synchronization system to cancel presynchronization;
if the self-healing of the master network element clock synchronization system fails, and the pre-synchronization of at least one sub-network element synchronization system succeeds, the master network element monitoring system determines that one sub-network element clock synchronization system is the master clock according to the at least one sub-network element clock synchronization system successfully pre-synchronized.
4. The method as claimed in claim 3, wherein the determining a sub-network element clock synchronization system as a master clock according to at least one sub-network element clock synchronization system successfully pre-synchronized comprises:
and the master network element monitoring system determines the sub-network element clock synchronization system corresponding to the network element with the highest priority as the master clock according to the priority of the network element corresponding to the at least one sub-network element clock synchronization system which is successfully presynchronized.
5. The method of claim 3, further comprising:
when the clock synchronization of the sub-network element clock synchronization system serving as the master clock is abnormal, the sub-network element clock synchronization system serving as the master clock performs self-healing and sends a clock synchronization abnormal signal to the master network element monitoring system;
the master network element monitoring system receives a clock synchronization abnormal signal sent by the sub-network element clock synchronization system serving as a master clock, indicates the master network element clock synchronization system and the other sub-network element clock synchronization systems to perform presynchronization, and determines one clock synchronization system from the master network element clock synchronization system and the at least one sub-network element clock synchronization system as the master clock according to a self-healing result of the sub-network element clock synchronization system serving as the master clock and presynchronization results of the master network element clock synchronization system and the other sub-network element clock synchronization systems.
6. The method according to claim 5, wherein the determining, from the master clock synchronization system and the at least one sub-network element clock synchronization system, one clock synchronization system as a master clock according to the self-healing result of the sub-network element clock synchronization system as the master clock and the pre-synchronization results of the master clock synchronization system and the other sub-network element clock synchronization systems comprises:
if the sub-network element clock synchronization system serving as the master clock is successfully self-healed, the master network element monitoring system determines that the sub-network element clock system is the master clock and indicates the master network element clock synchronization system and the other sub-network element clock synchronization systems to cancel presynchronization;
if the sub-network element clock synchronization system serving as the master clock fails to self-heal, the pre-synchronization of at least one clock synchronization system of the master network element clock synchronization system and the other sub-network element clock synchronization systems is successful, and the master network element monitoring system determines one clock synchronization system as the master clock from the master network element clock synchronization system and the other sub-network element clock synchronization systems which are successful in pre-synchronization.
7. The method as claimed in claim 6, wherein the step of determining one clock synchronization system as a master clock from the master network element clock synchronization system and the other sub-network element clock synchronization systems that are successfully pre-synchronized comprises:
and the master network element monitoring system determines the clock synchronization system corresponding to the network element with the highest priority as the master clock according to the priorities of the master network element clock synchronization system which is successfully presynchronized and the network elements corresponding to the other sub-network element clock synchronization systems.
8. The method as claimed in any one of claims 1 to 7, wherein the system for synchronizing the network element clock of the multimode base station further comprises: the sub-network element clock synchronization system is in communication connection with the corresponding sub-network element monitoring system; the at least one sub-network element monitoring system is respectively in communication connection with the main network element monitoring system; and the master network element monitoring system is communicated with the corresponding sub-network element clock synchronization system through the sub-network element monitoring system.
9. A network element clock synchronization system of a multimode base station, configured to perform the method of any one of claims 1 to 7, the network element clock synchronization system of the multimode base station comprising: the system comprises a main network element clock synchronization system, a main network element monitoring system and at least one sub-network element clock synchronization system;
the at least one sub-network element clock synchronization system is respectively in communication connection with the main network element clock synchronization system; the master network element clock synchronization system and the at least one sub-network element clock synchronization system are respectively in communication connection with the master network element monitoring system;
the master network element monitoring system is used for determining one clock synchronization system as a master clock from the master network element clock synchronization system and the at least one sub-network element clock synchronization system, wherein the master clock performs clock synchronization according to an external clock signal; the master network element clock synchronization system is used for indicating the at least one sub-network element clock synchronization system to carry out clock synchronization when the master network element clock synchronization system is determined to be a master clock; the method comprises the steps that when one sub-network element clock synchronization system is determined to be a master clock, the master network element clock synchronization system is indicated to carry out clock synchronization, and other sub-network element clock synchronization systems carry out clock synchronization;
the master network element clock synchronization system is used for carrying out clock synchronization according to the clock of the sub-network element clock synchronization system as a master clock;
and the at least one sub-network element clock synchronization system is used for performing clock synchronization according to the main network element clock synchronization system.
10. The system of claim 9, further comprising: the sub-network element clock synchronization system is in communication connection with the corresponding sub-network element monitoring system; the at least one sub-network element monitoring system is respectively in communication connection with the main network element monitoring system; and the master network element monitoring system is communicated with the corresponding sub-network element clock synchronization system through the sub-network element monitoring system.
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