CN109275183B - Base station synchronization method and device for same-frequency networking - Google Patents
Base station synchronization method and device for same-frequency networking Download PDFInfo
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- CN109275183B CN109275183B CN201710582517.XA CN201710582517A CN109275183B CN 109275183 B CN109275183 B CN 109275183B CN 201710582517 A CN201710582517 A CN 201710582517A CN 109275183 B CN109275183 B CN 109275183B
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Abstract
The embodiment of the invention discloses a base station synchronization method and a base station synchronization device for same-frequency networking, wherein the method comprises the following steps: acquiring a same-frequency networking mode value of a base station, and judging the same-frequency networking mode value; if the same-frequency networking mode value is a first preset value, acquiring a first synchronization state value reported by a physical layer of a base station; if the base station is judged and known to be in the out-of-synchronization state according to the first synchronization state value, executing base station resetting operation; if the same-frequency networking mode value is a second preset value, synchronizing with the macro station and adding synchronous state data in the broadcast message MIB information; and if the synchronization with the macro station is successfully obtained through judgment, setting the synchronization state data as a third synchronization state value, otherwise, setting the synchronization state data as a first synchronization state value. According to the embodiment of the invention, by setting the same-frequency networking mode value and judging that the same-frequency networking mode value is the first preset value and the second preset value, different synchronous operations are respectively executed, the synchronous state of the base station is ensured, the switching failure times of users are reduced, and the user perception is improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of communication, in particular to a base station synchronization method and device for same-frequency networking.
Background
The integrated pico-base station has the characteristics of small coverage area relative to the macro-base station and flexible networking, so that blind or heat compensation can be performed indoors and outdoors, and the networking quantity is multiplied compared with that of the macro-base station. The application scene includes that the signal of the macro station in the office area with higher floor is particularly weak, and an integrated pico-base station is needed to cover. Therefore, the synchronization problem of the integrated pico-base station is involved, as the signal of the macro-base station is as low as-115 dBm indoors and many office buildings do not have 1588 synchronization sources, the integrated pico-base station can only be synchronized in a multi-hop mode, but the multi-hop synchronization mode easily causes a series of small base stations to be in an out-of-step state because a certain point is out of step, or a part of small base stations exceed the allowed multi-hop number. The risk of user switching failure is increased, and finally user perception is reduced.
With the development trend of mobile communication networks, macro cells are shifted to small cell structures with high capacity, low cost, green and energy saving. In response to this demand, it is necessary to introduce Smallcell integrated with cellular technology for supplementary coverage. At present, office building areas with weak macro station signals and no 1588 synchronization sources are synchronized by covering and multi-hopping in a mode of intensive co-frequency networking of small base stations. Since the source of the multi-hop synchronization is not directly from the macro station, the quality of synchronization will be degraded, and up to 2 multi-hops can be performed when the tolerable synchronization performance is ppm <0.1@ SNR < 1. As shown in fig. 1. A1 is one hop, and A2 and A1 synchronize to two hops. B1 is one hop, B2 and B1 synchronize to two hops, the signal strength at B1 of a1 and B2 is not much different, and the signal strength at B2 of a2 and B1 are not much different, if B1 is restarted by power-down, the process of resynchronization may be synchronized with B2 which is out of step. If the B2 is restarted when being powered down, 3 hops can be formed in the process of resynchronization and the 2 hops A2. Both of these conditions affect the handover, resulting in poor customer perception.
In the current implementation manner of air interface synchronization, in the process of establishing a cell, a physical layer scans surrounding neighbor cell signals through a sniffer to acquire pss and sss of the cell, preferentially synchronizes a cell of an assigned frequency point, and tries to synchronize the cell with the strongest RSRP from the sniffer if the cell cannot be synchronized with the cell of the assigned frequency point. Therefore, currently, air interface synchronization focuses on cell frequency points and RSRP, and a flow diagram is shown in fig. 2. However, at present, air interface synchronization is attempted to be synchronized with a certain cell through a frequency point and RSRP, so that in a dense environment, synchronization with a small out-of-step station may occur after some base stations have exceeded two hops or a certain base station is powered off and restarted.
In the process of implementing the embodiment of the invention, the inventor finds that the existing method has no protection mechanism, and the base station cannot be actively recovered after being in an out-of-step state for some reason.
Disclosure of Invention
Because the existing method has the problems, the embodiment of the invention provides a base station synchronization method and a base station synchronization device for same-frequency networking.
In a first aspect, an embodiment of the present invention provides a base station synchronization method for co-frequency networking, including:
acquiring a same-frequency networking mode value of a base station, and judging the same-frequency networking mode value;
if the same-frequency networking mode value is a first preset value, acquiring a first synchronization state value reported by a physical layer of a base station;
if the base station is judged to be in the out-of-synchronization state according to the first synchronization state value, executing base station reset operation to enable the base station to recover the synchronization state;
if the same-frequency networking mode value is a second preset value, synchronizing with the macro station and adding synchronous state data in broadcast message MIB information;
if the synchronization with the macro station is successfully obtained through judgment, the synchronization state data is set as a third synchronization state value, otherwise, the synchronization state data is set as the first synchronization state value;
the first preset value indicates that a same-frequency networking mode is opened and the cell is multi-hop, and the second preset value indicates that the same-frequency networking mode is opened and the cell is zero-hop.
Optionally, if it is determined and learned that the base station is in the out-of-synchronization state according to the first synchronization state value, a base station reset operation is performed to restore the base station to the synchronization state, which specifically includes:
and if the current time is within a preset time period and the base station is judged to be in the out-of-step state according to the first synchronization state value, executing a base station reset operation to enable the base station to recover the synchronization state.
Optionally, if the current time is within a preset time period and the base station is judged and known to be in an out-of-synchronization state according to the first synchronization state value, executing a base station reset operation to enable the base station to recover the synchronization state, specifically including:
if the current time is within a preset time period and the base station is judged to be in the out-of-step state according to the first synchronization state value, starting a timer;
if the timer reaches the preset time, acquiring a second synchronous state value reported by the physical layer;
and if the base station is judged to be in the out-of-step state according to the second synchronous state value, executing a base station reset operation to enable the base station to recover the synchronous state.
Optionally, the obtaining a first synchronization state value reported by a physical layer of the base station if the common-frequency networking mode value is a first preset value specifically includes:
and if the current time is not within a preset time period and the base station is judged and known to be in an out-of-step state according to the first synchronization state value, acquiring a same-frequency networking mode value of the base station after a preset pause time.
Optionally, the method further comprises:
and if the base station is judged to be in a synchronous state according to the first synchronous state value and the synchronous state is realized through two multi-hop, executing the reset operation of the base station.
Optionally, the method further comprises:
if the base station is judged and known to be in a synchronous state according to the first synchronous state value and the synchronous state is realized through zero times or one multi-hop, the base station is synchronized with the cell;
and if the synchronization with the cell is successfully obtained through judgment, setting the synchronization state data as a corresponding fourth synchronization state value or a corresponding fifth synchronization state value, otherwise, setting the synchronization state data as the first synchronization state value.
In a second aspect, an embodiment of the present invention further provides a base station synchronization apparatus for co-frequency networking, including:
the networking mode judging module is used for acquiring a same-frequency networking mode value of the base station and judging the same-frequency networking mode value;
a synchronization state obtaining module, configured to obtain a first synchronization state value reported by a physical layer of a base station if the common-frequency networking mode value is a first preset value;
the first base station resetting module is used for executing base station resetting operation to enable the base station to recover the synchronous state if the base station is judged to be in the out-of-step state according to the first synchronous state value;
the macro station synchronization module is used for synchronizing with the macro station and adding synchronization state data in the broadcast message MIB information if the same-frequency networking mode value is a second preset value;
a first synchronization state setting module, configured to set the synchronization state data to a third synchronization state value if it is determined that synchronization with the macro station is successful, and set the synchronization state data to the first synchronization state value if it is determined that synchronization with the macro station is not successful;
the first preset value indicates that a same-frequency networking mode is opened and the cell is multi-hop, and the second preset value indicates that the same-frequency networking mode is opened and the cell is zero-hop.
Optionally, the first base station resetting module is specifically configured to execute a base station resetting operation if the current time is within a preset time period and the base station is judged and known to be in an out-of-synchronization state according to the first synchronization state value, so that the base station returns to the synchronization state.
Optionally, the first base station resetting module specifically includes:
a timer starting unit, configured to start a timer if the current time is within a preset time period and the base station is determined to be in an out-of-synchronization state according to the first synchronization state value;
a synchronization state obtaining unit, configured to obtain a second synchronization state value reported by the physical layer if the timer reaches a preset time;
and the base station resetting unit is used for executing the base station resetting operation to enable the base station to recover the synchronous state if the base station is judged to be in the out-of-step state according to the second synchronous state value.
Optionally, the synchronization state obtaining module is specifically configured to obtain a same-frequency networking mode value of the base station after a preset pause time if the current time is not within a preset time period and the base station is judged and known to be in an out-of-synchronization state according to the first synchronization state value.
Optionally, the apparatus further comprises:
and the second base station resetting module is used for executing the base station resetting operation if the base station is judged to be in the synchronous state according to the first synchronous state value and the synchronous state is realized through two multi-hop.
Optionally, the apparatus further comprises:
the cell synchronization module is used for synchronizing with a cell if the base station is judged and known to be in a synchronization state according to the first synchronization state value and the synchronization state is realized through zero times or one multi-hop;
and the second synchronization state setting module is used for setting the synchronization state data to a corresponding fourth synchronization state value or a corresponding fifth synchronization state value if the synchronization with the cell is successfully judged and acquired, and otherwise, setting the synchronization state data to the first synchronization state value.
In a third aspect, an embodiment of the present invention further provides an electronic device, including:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of the above method claims.
In a fourth aspect, embodiments of the invention also propose a non-transitory computer-readable storage medium storing a computer program which causes the computer to perform the method of the above method claim.
According to the technical scheme, the embodiment of the invention obtains the first synchronous state value reported by the physical layer of the base station by setting the same-frequency networking mode value and judging that the same-frequency networking mode value is the first preset value, and immediately executes the resetting operation of the base station by judging that the base station is in the out-of-step state.
Drawings
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, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic diagram of multi-hop synchronization in co-frequency networking according to the prior art;
fig. 2 is a schematic flow chart of a base station synchronization method for co-frequency networking in the prior art;
fig. 3 is a schematic flow chart of a base station synchronization method for co-frequency networking according to an embodiment of the present invention;
fig. 4 is a schematic flowchart of a base station synchronization method for intra-frequency networking according to another embodiment of the present invention;
fig. 5 is a schematic flowchart of a base station synchronization method for intra-frequency networking according to another embodiment of the present invention;
fig. 6 is a schematic structural diagram of a base station synchronization apparatus for co-frequency networking according to an embodiment of the present invention;
fig. 7 is a logic block diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
The following further describes embodiments of the present invention with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
Fig. 3 shows a schematic flowchart of a base station synchronization method for intra-frequency networking according to this embodiment, where the method includes:
s301, acquiring a same-frequency networking mode value of a base station, and judging the same-frequency networking mode value.
And the same-frequency networking mode value is a parameter value used for expressing different same-frequency networking modes in the base station. In this embodiment, the common-frequency networking mode value includes a first preset value, a second preset value and a third preset value, where the first preset value indicates that the common-frequency networking mode is turned on and the local cell is multi-hop, the second preset value indicates that the common-frequency networking mode is turned on and the local cell is zero-hop, and the third preset value indicates that the common-frequency networking mode is turned off.
Specifically, an oam (operation Administration and maintenance) subsystem in the base station may acquire an intra-frequency networking mode value of the base station in real time, and determine whether the intra-frequency networking mode value is a first preset value, a second preset value, or a third preset value.
S302, if the same-frequency networking mode value is a first preset value, a first synchronization state value reported by a physical layer of the base station is obtained.
The first synchronization state value is a state value representing a synchronization condition of the base station, and includes a synchronization state or an out-of-synchronization state of the base station, and may also include a current hop count of the base station.
For example, a field syncstatus is added in a periodic system message MIB (broadcast message) message to show the synchronization status of the current base station, and the format of the field syncstatus is tube (0/1/2) and flase (0/1/2), where true indicates that the base station is in a synchronization status and flase indicates that the base station is in an out-of-synchronization status. Where 0 denotes 0-hop synchronization, i.e. directly with the macro station or through RGPS, 1 denotes 1 multi-hop and 2 denotes 2 multi-hop. Since the source of the multi-hop synchronization is not directly from the macro station, the quality of synchronization will be degraded, and up to 2 multi-hops can be performed when the tolerable synchronization performance is ppm <0.1@ SNR < 1.
And S303, if the base station is judged to be in the out-of-synchronization state according to the first synchronization state value, executing a base station resetting operation to enable the base station to recover the synchronization state.
The base station resetting operation is an operation of resetting the base station, so that the base station returns to a synchronous state.
For example, the first synchronization state values may include true (0), true (1), true (2), false (0), false (1), and false (2); when the first synchronization state value is false (0), false (1) or false (2), it indicates that the base station is in an out-of-synchronization state, and a base station reset operation needs to be performed.
In the embodiment, the same-frequency networking mode value is set, the first synchronization state value reported by the physical layer of the base station is acquired when the same-frequency networking mode value is judged to be the first preset value, the base station resetting operation is immediately executed by judging that the base station is in the out-of-step state, and the base station is synchronized with the macro station when the same-frequency networking mode value is judged to be the second preset value, so that the base station can be automatically re-synchronized, the synchronization state of the base station is ensured, the switching failure times of users are reduced, and the user perception is improved.
Further, on the basis of the above method embodiment, S303 specifically includes:
and if the current time is within a preset time period and the base station is judged to be in the out-of-step state according to the first synchronization state value, executing a base station reset operation to enable the base station to recover the synchronization state.
Specifically, the OAM queries a synchronization state of the base station, and if the base station is in the synchronization state, no processing is done. If the base station is in the out-of-step state, the time point section of the out-of-step state is judged firstly, and if the time point section is in the preset idle time section, the base station resetting operation is executed so as not to influence the normal use of the user.
The preset time period is a preset time period for performing a base station reset operation without affecting normal use of a user, and for example, the preset time period may be 2:00-4:00 in the morning.
Further, on the basis of the above method embodiment, S303 specifically includes:
s3031, if the current time is within a preset time period and the base station is judged to be out of synchronization according to the first synchronization state value, starting a timer;
s3032, if the timer reaches the preset timing time, acquiring a second synchronous state value reported by the physical layer;
and S3033, if the base station is judged to be in the out-of-step state according to the second synchronization state value, executing a base station reset operation to enable the base station to recover the synchronization state.
The second synchronization state value is a state value representing a synchronization condition of the base station, and includes a synchronization state or an out-of-synchronization state of the base station, and may also include a current hop count of the base station.
Specifically, since the OAM subsystem may acquire the synchronization state of the base station in real time, after the base station is in the out-of-synchronization state, a time period during which the out-of-synchronization state occurs in the base station is determined first, and if the out-of-synchronization state occurs in a predetermined time period and lasts for a preset time (e.g., 10min), the OAM subsystem resets to recover the synchronization state.
For example, if the out-of-sync state of the base station occurs at 2:00-4:00, a timer is started. If the timer reaches 10min and the base station is always out of sync within this 10min, the OAM performs a rebot reset to restore the sync state. If the base station recovers the synchronization state within 10min, the timer is reset and no processing is done. The specific flow chart is shown in fig. 4.
Further, on the basis of the above method embodiment, S302 specifically includes:
and if the current time is not within a preset time period and the base station is judged and known to be in an out-of-step state according to the first synchronization state value, acquiring a same-frequency networking mode value of the base station after a preset pause time.
The suspension time is the time for suspending the execution of the base station synchronization method of the co-frequency networking provided by the embodiment after the OAM of the base station judges that the base station is currently in the out-of-step state.
For example, if the out-of-sync state of the base station is not timed within a pre-defined morning time of 2: within 00-4:00, the base station does not process, and does not need to search the out-of-step time within 60 min.
Further, on the basis of the above embodiment of the method, the method further comprises:
s304, if the same-frequency networking mode value is a second preset value, synchronizing with the macro station, and adding synchronous state data in MIB information of the broadcast message;
s305, if the synchronization with the macro station is successfully obtained, setting the synchronization state data as a third synchronization state value, otherwise, setting the synchronization state data as the first synchronization state value.
Specifically, a node is added in the small cell configuration file: syncstatusshowflag, whose value ranges are 0, 1, and 2, respectively corresponds to the third preset value, the second preset value, or the first preset value provided in this embodiment. Wherein 0 represents closing the dense same-frequency networking mode, and syncstatus fields are not added in the MIB message. 1 represents that an intensive same-frequency networking mode is opened and the cell is set to be 0 hop, namely a syncstatus field is added in an MIB message, if the syncstatus field is successfully synchronized, the status (0) is displayed, and if the syncstatus field is not synchronized, the flush (0) is displayed. 2, opening a dense same-frequency networking mode and setting the cell as multi-hop, namely adding a syncstatus field in the MIB message, if the multi-hop syncstatus field is successfully used for realizing the tube (1/2), and if the syncstatus field is out of step, displaying the flip (1/2). Specifically, L3 is required to perform the value of syncstatus field in the MIB message of the synchronization cell reported by the physical layer for 1 or 2.
For example, as shown in fig. 5, after the small base station performs synchronization, the dense same-frequency networking mode is opened, and if the current hop is 0, the small base station may perform synchronization with the macro station through an RGPS or an air interface, and a syncstatus field is added in the MIB message. Further judging whether the synchronization is successful, if so, setting the syncstatus field as true (0); if the synchronization is unsuccessful, the syncstatus field is false (0). Under the intensive same-frequency networking mode of the small base stations, the base stations which are out of step due to various reasons can be recovered automatically.
Further, on the basis of the above method embodiment, as shown in fig. 3, the method further includes:
s306, if the base station is judged and known to be in a synchronous state according to the first synchronous state value and the synchronous state is realized through two multi-hop, executing a base station resetting operation.
Further, on the basis of the above embodiment of the method, the method further comprises:
s307, if the base station is judged and known to be in a synchronous state according to the first synchronous state value and the synchronous state is realized through zero times or one multi-hop, synchronizing with the cell;
and S308, if the synchronization with the cell is successfully obtained through judgment, setting the synchronization state data as a corresponding fourth synchronization state value or a corresponding fifth synchronization state value, and otherwise, setting the synchronization state data as the first synchronization state value.
Specifically, as shown in fig. 5, after the small cell performs synchronization, an intensive same-frequency networking mode is opened, and the current time is not 0 hop, the physical layer acquires a cell MIB message of a synchronization frequency point through a sniffer, and reports the cell MIB message to L3 (high level 3); the field of syncstatus is true, when the field of syncstatus is true (0) or true (1), i.e. zero times of multi-hop or one time of multi-hop, L3 allows synchronization with the cell and judges whether the synchronization is successful, if so, the synchronization process is terminated, and the field of syncstatus in the MIB message is set to be the corresponding true (0) or true (1), i.e. the fourth synchronization status value or the fifth synchronization status value; if the synchronization is unsuccessful, it is set to corresponding false (0) or false (1).
As shown in fig. 5, when the syncstatus field is true (2), i.e. two times of multi-hop, L3 does not allow synchronization with the cell, and avoids that a 1-hop cell is synchronized to a previous 2-hop cell after reset; and 3, the 2-hop small base station is prevented from synchronizing to other 2-hop small base stations to form 3 hops after being reset.
In the same-frequency networking base station synchronization method provided by this embodiment, in the same-frequency networking mode, if the base station is in an out-of-step state due to an abnormality, the base station synchronization method may be performed in a time interval of 2:00-4:00 perform reset resynchronization. The reset base station is not in the out-of-step state again or forms a third hop because of synchronizing the small base station which is out of step. The synchronization state of the small base station is ensured, and the customer perception is improved.
Fig. 6 shows a schematic structural diagram of a base station synchronization apparatus for intra-frequency networking provided in this embodiment, where the apparatus includes: a networking mode determining module 601, a synchronization state obtaining module 602, and a first base station resetting module 603, where:
the networking mode judging module 601 is used for acquiring a same-frequency networking mode value of a base station and judging the same-frequency networking mode value;
the synchronization state obtaining module 602 is configured to obtain a first synchronization state value reported by a physical layer of a base station if the common-frequency networking mode value is a first preset value;
the first base station resetting module 603 is configured to execute a base station resetting operation to restore the base station to the synchronization state if it is determined that the base station is in the out-of-synchronization state according to the first synchronization state value.
Specifically, the networking mode determining module 601 obtains a same-frequency networking mode value of a base station, and determines the same-frequency networking mode value; if the same-frequency networking mode value is a first preset value, the synchronization state obtaining module 602 obtains a first synchronization state value reported by a physical layer of a base station; the first base station resetting module 603, if it is determined that the base station is in the out-of-synchronization state according to the first synchronization state value, executes a base station resetting operation to restore the base station to the synchronization state.
In the embodiment, the same-frequency networking mode value is set, the first synchronization state value reported by the physical layer of the base station is acquired when the same-frequency networking mode value is judged to be the first preset value, the base station resetting operation is immediately executed by judging that the base station is in the out-of-step state, and the base station is synchronized with the macro station when the same-frequency networking mode value is judged to be the second preset value, so that the base station can be automatically re-synchronized, the synchronization state of the base station is ensured, the switching failure times of users are reduced, and the user perception is improved.
Further, on the basis of the above device embodiment, the first base station resetting module 603 is specifically configured to execute a base station resetting operation if the current time is within a preset time period and the base station is determined to be in an out-of-synchronization state according to the first synchronization state value, so as to restore the base station to a synchronization state.
Further, on the basis of the above device embodiment, the first base station resetting module 603 specifically includes:
a timer starting unit, configured to start a timer if the current time is within a preset time period and the base station is determined to be in an out-of-synchronization state according to the first synchronization state value;
a synchronization state obtaining unit, configured to obtain a second synchronization state value reported by the physical layer if the timer reaches a preset time;
and the base station resetting unit is used for executing the base station resetting operation to enable the base station to recover the synchronous state if the base station is judged to be in the out-of-step state according to the second synchronous state value.
Further, on the basis of the above device embodiment, the synchronization state obtaining module 602 is specifically configured to obtain a same-frequency networking mode value of the base station after a preset pause time if the current time is not within a preset time period and the base station is determined to be in an out-of-synchronization state according to the first synchronization state value.
Further, on the basis of the above embodiment of the apparatus, the apparatus further comprises:
the macro station synchronization module is used for synchronizing with the macro station and adding synchronization state data in the broadcast message MIB information if the same-frequency networking mode value is a second preset value;
and the first synchronization state setting module is used for setting the synchronization state data as a third synchronization state value if the synchronization with the macro station is successfully judged, and otherwise, setting the synchronization state data as the first synchronization state value.
Further, on the basis of the above embodiment of the apparatus, the apparatus further comprises:
and the second base station resetting module is used for executing the base station resetting operation if the base station is judged to be in the synchronous state according to the first synchronous state value and the synchronous state is realized through two multi-hop.
Further, on the basis of the above embodiment of the apparatus, the apparatus further comprises:
the cell synchronization module is used for synchronizing with a cell if the base station is judged and known to be in a synchronization state according to the first synchronization state value and the synchronization state is realized through zero times or one multi-hop;
and the second synchronization state setting module is used for setting the synchronization state data to a corresponding fourth synchronization state value or a corresponding fifth synchronization state value if the synchronization with the cell is successfully judged and acquired, and otherwise, setting the synchronization state data to the first synchronization state value.
The base station synchronization apparatus of co-frequency networking described in this embodiment may be used to implement the above method embodiments, and the principle and technical effect are similar, which are not described herein again.
Referring to fig. 7, the electronic device includes: a processor (processor)701, a memory (memory)702, and a bus 703;
wherein the content of the first and second substances,
the processor 701 and the memory 702 complete communication with each other through the bus 703;
the processor 701 is configured to call the program instructions in the memory 702 to execute the methods provided by the above-described method embodiments.
The present embodiments disclose a computer program product comprising a computer program stored on a non-transitory computer readable storage medium, the computer program comprising program instructions which, when executed by a computer, enable the computer to perform the methods provided by the above-described method embodiments.
The present embodiments provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the methods provided by the method embodiments described above.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods described in the embodiments or some parts of the embodiments.
It should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (14)
1. A base station synchronization method of co-frequency networking is characterized by comprising the following steps:
acquiring a same-frequency networking mode value of a base station, and judging the same-frequency networking mode value;
if the same-frequency networking mode value is a first preset value, acquiring a first synchronization state value reported by a physical layer of a base station;
if the base station is judged to be in the out-of-step state according to the first synchronization state value, executing base station resetting operation to enable the base station to recover the synchronization state;
if the same-frequency networking mode value is a second preset value, synchronizing with the macro station and adding synchronous state data in broadcast message MIB information;
if the synchronization with the macro station is successfully obtained through judgment, the synchronization state data is set as a third synchronization state value, otherwise, the synchronization state data is set as the first synchronization state value;
the first preset value indicates that a same-frequency networking mode is opened and the cell is multi-hop, and the second preset value indicates that the same-frequency networking mode is opened and the cell is zero-hop;
the synchronization state value is a state value representing the synchronization condition of the base station, and includes the synchronization state or the out-of-synchronization state of the base station, and also includes the current hop count of the base station.
2. The method according to claim 1, wherein if it is determined that the base station is in the out-of-synchronization state according to the first synchronization state value, performing a base station reset operation to restore the base station to the synchronization state, specifically comprising:
and if the current time is within a preset time period and the base station is judged to be in the out-of-step state according to the first synchronization state value, executing a base station reset operation to enable the base station to recover the synchronization state.
3. The method according to claim 2, wherein if the current time is within a preset time period and the base station is determined to be in an out-of-synchronization state according to the first synchronization state value, performing a base station reset operation to restore the base station to a synchronization state, specifically comprising:
if the current time is within a preset time period and the base station is judged to be in the out-of-step state according to the first synchronization state value, starting a timer;
if the timer reaches the preset time, acquiring a second synchronous state value reported by the physical layer;
and if the base station is judged to be in the out-of-step state according to the second synchronous state value, executing a base station reset operation to enable the base station to recover the synchronous state.
4. The method according to claim 2, wherein after obtaining the first synchronization status value reported by the physical layer of the base station if the intra-frequency networking mode value is the first preset value, the method further comprises:
and if the current time is not within a preset time period and the base station is judged and known to be in an out-of-step state according to the first synchronization state value, acquiring a same-frequency networking mode value of the base station after a preset pause time.
5. The method of claim 1, further comprising:
and if the base station is judged to be in a synchronous state according to the first synchronous state value and the synchronous state is realized through two multi-hop, executing the reset operation of the base station.
6. The method of claim 1, further comprising:
if the base station is judged and known to be in a synchronous state according to the first synchronous state value and the synchronous state is realized through zero times or one multi-hop, synchronizing with a cell of a synchronous frequency point of the base station;
and if the synchronization with the cell of the synchronization frequency point is successfully obtained through judgment, setting the synchronization state data as a corresponding fourth synchronization state value or a corresponding fifth synchronization state value, otherwise, setting the synchronization state data as the first synchronization state value.
7. A base station synchronization device for co-frequency networking is characterized by comprising:
the networking mode judging module is used for acquiring a same-frequency networking mode value of the base station and judging the same-frequency networking mode value;
a synchronization state obtaining module, configured to obtain a first synchronization state value reported by a physical layer of a base station if the common-frequency networking mode value is a first preset value;
the first base station resetting module is used for executing base station resetting operation to enable the base station to recover the synchronous state if the base station is judged to be in the out-of-step state according to the first synchronous state value;
the macro station synchronization module is used for synchronizing with the macro station and adding synchronization state data in the broadcast message MIB information if the same-frequency networking mode value is a second preset value;
a first synchronization state setting module, configured to set the synchronization state data to a third synchronization state value if it is determined that synchronization with the macro station is successful, and set the synchronization state data to the first synchronization state value if it is determined that synchronization with the macro station is not successful;
the first preset value indicates that a same-frequency networking mode is opened and the cell is multi-hop, and the second preset value indicates that the same-frequency networking mode is opened and the cell is zero-hop;
the synchronization state value is a state value representing the synchronization condition of the base station, and includes the synchronization state or the out-of-synchronization state of the base station, and also includes the current hop count of the base station.
8. The apparatus of claim 7, wherein the first base station resetting module is specifically configured to execute a base station resetting operation to restore the base station to the synchronization state if the current time is within a preset time period and the base station is determined to be in the out-of-synchronization state according to the first synchronization state value.
9. The apparatus of claim 8, wherein the first base station reset module specifically comprises:
a timer starting unit, configured to start a timer if the current time is within a preset time period and the base station is determined to be in an out-of-synchronization state according to the first synchronization state value;
a synchronization state obtaining unit, configured to obtain a second synchronization state value reported by the physical layer if the timer reaches a preset time;
and the base station resetting unit is used for executing the base station resetting operation to enable the base station to recover the synchronous state if the base station is judged to be in the out-of-step state according to the second synchronous state value.
10. The apparatus of claim 8, further comprising:
and the mode value acquisition module is used for acquiring a same-frequency networking mode value of the base station after a preset pause time if the current time is not within a preset time period and the base station is judged to be in an out-of-step state according to the first synchronization state value.
11. The apparatus of claim 7, further comprising:
and the second base station resetting module is used for executing the base station resetting operation if the base station is judged to be in the synchronous state according to the first synchronous state value and the synchronous state is realized through two multi-hop.
12. The apparatus of claim 7, further comprising:
the cell synchronization module is used for synchronizing with a cell of a synchronization frequency point of the base station if the base station is judged and known to be in a synchronization state according to the first synchronization state value and the synchronization state is realized through zero times or one time of multi-hop;
and the second synchronization state setting module is used for setting the synchronization state data to a corresponding fourth synchronization state value or a corresponding fifth synchronization state value if the cell synchronization with the synchronization frequency point is judged to be successful, or setting the synchronization state data to the first synchronization state value if the cell synchronization with the synchronization frequency point is judged to be successful.
13. An electronic device, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1 to 6.
14. A non-transitory computer-readable storage medium storing a computer program that causes a computer to perform the method according to any one of claims 1 to 6.
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