CN107708161A - A kind of method and apparatus of base station sounds - Google Patents
A kind of method and apparatus of base station sounds Download PDFInfo
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- CN107708161A CN107708161A CN201610648940.0A CN201610648940A CN107708161A CN 107708161 A CN107708161 A CN 107708161A CN 201610648940 A CN201610648940 A CN 201610648940A CN 107708161 A CN107708161 A CN 107708161A
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- 239000000523 sample Substances 0.000 claims abstract description 129
- 238000001514 detection method Methods 0.000 claims abstract description 84
- 230000004044 response Effects 0.000 claims abstract description 57
- 230000001360 synchronised effect Effects 0.000 claims description 35
- 230000001960 triggered effect Effects 0.000 claims description 18
- 238000012790 confirmation Methods 0.000 claims description 5
- 238000012163 sequencing technique Methods 0.000 claims description 2
- 238000004891 communication Methods 0.000 abstract description 9
- 230000000153 supplemental effect Effects 0.000 abstract 2
- 230000000875 corresponding effect Effects 0.000 description 106
- 238000012545 processing Methods 0.000 description 9
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/08—Reselecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W36/00—Hand-off or reselection arrangements
- H04W36/0005—Control or signalling for completing the hand-off
- H04W36/0055—Transmission or use of information for re-establishing the radio link
- H04W36/0077—Transmission or use of information for re-establishing the radio link of access information of target access point
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Abstract
The invention discloses a kind of method and apparatus of base station sounds, it is related to communication technical field.This method includes：When triggering switches base station operation, the handover configurations supplemental characteristic that current base station is sent is received, wherein handover configurations supplemental characteristic includes common signal channel configuration set and power contorl parameters set；The synchronizing signal of target BS is obtained, and the SYN of target BS is obtained in synchronizing signal；According to SYN, the common signal channel configuration corresponding to determination in common signal channel configuration set；Probe request signal is sent in common signal channel corresponding to common signal channel configuration, wherein power contorl parameters corresponding to probe request signal are included in power contorl parameters set；Within a preset time interval, if receiving probe response signal corresponding with probe request signal, confirm to complete the detection to target BS, it is possible to achieve when there is no the configuration information of target BS in adjacency list, remain to complete the detection to target BS.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a method and an apparatus for base station sounding.
Background
At present, in the process of communication between a terminal and a base station, when the terminal moves among a plurality of base stations, the terminal needs to trigger the switching of the current base station according to the quality of a communication link between the terminal and each base station, so as to ensure the optimality and stability of a base station signal received by the terminal.
In the existing communication system, when a terminal accesses a target base station, the target base station can be detected only by obtaining configuration information of the target base station, and then the target base station is accessed. In general, a terminal may obtain an adjacency list recording configuration information of surrounding base stations from a current base station, and obtain configuration information of a target base station from the adjacency list, so as to implement detection of the target base station according to the configuration information. If the adjacency list does not have the configuration information of the target base station, the target base station cannot be detected.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method and an apparatus for base station detection, so as to solve the technical problem that a terminal cannot switch a base station because there is no target base station configuration information in a terminal adjacency list.
In a first aspect, an embodiment of the present invention provides a method for base station detection, which is applied to a terminal, and includes:
when the operation of a switching base station is triggered, receiving switching configuration parameter data sent by a current base station, wherein the switching configuration parameter data comprises a public channel configuration set and a power control parameter set;
acquiring a synchronization signal of a target base station, and acquiring a synchronization serial number of the target base station from the synchronization signal;
determining corresponding public channel configuration in the public channel configuration set according to the synchronous serial number;
sending a probe request signal in a common channel corresponding to the common channel configuration, wherein a power control parameter corresponding to the probe request signal is included in the power control parameter set;
and in a preset time interval, if a detection response signal corresponding to the detection request signal is received, confirming that the detection of the target base station is finished.
In a second aspect, an embodiment of the present invention further provides a base station detection apparatus, which is applied to a terminal, and includes:
the base station comprises a data receiving module, a power control module and a switching module, wherein the data receiving module is used for receiving switching configuration parameter data sent by a current base station when the operation of a switching base station is triggered, and the switching configuration parameter data comprises a public channel configuration set and a power control parameter set;
the synchronization acquisition module is used for acquiring a synchronization signal of a target base station and acquiring a synchronization serial number of the target base station from the synchronization signal;
a channel configuration module, configured to determine, according to the synchronization sequence number, a corresponding common channel configuration in the common channel configuration set;
a signal sending module, configured to send a probe request signal in a common channel corresponding to the common channel configuration, where a power control parameter corresponding to the probe request signal is included in the power control parameter set;
and the detection confirmation module is used for confirming that the detection of the target base station is finished if a detection response signal corresponding to the detection request signal is received within a preset time interval.
When the operation of a handover base station is triggered, the method and the device for detecting the base station determine the corresponding common channel configuration by receiving handover configuration parameter data sent by a current base station and determining a synchronous serial number of a target base station, and send a detection request signal in a common channel corresponding to the common channel configuration, wherein a power control parameter of the detection request signal is included in a power control parameter set, and if a detection response signal sent by the target base station is received within a preset time interval, the completion of the detection of the target base station is confirmed. By adopting the common channel configuration set and the power control parameter set, when the common channel configuration and the power control parameters of the target base station do not exist in the neighbor table or the neighbor table fails to be loaded, the terminal can still complete the detection of the target base station, and further the switching of the target base station can be realized.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments made with reference to the following drawings:
fig. 1 is a flowchart of a method for base station detection according to an embodiment of the present invention;
fig. 2 is a flowchart of a base station detection method according to a second embodiment of the present invention;
fig. 3 is a flowchart of a base station detection method according to a third embodiment of the present invention;
fig. 4 is a flowchart of a base station detection method according to a fourth embodiment of the present invention;
fig. 5 is a flowchart of a base station detection method according to a fifth embodiment of the present invention;
fig. 6 is a schematic structural diagram of a base station detection apparatus according to a sixth embodiment of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the relevant aspects of the present invention are shown in the drawings.
Example one
Fig. 1 is a flowchart of a method for base station detection according to an embodiment of the present invention. The embodiment is suitable for the situation that when the terminal switches the base station, the information of the target base station does not exist in the adjacency list sent by the current base station or the adjacency list sent by the current base station fails to be loaded. A method for base station detection provided in this embodiment may be performed by an apparatus for base station detection, where the apparatus may be implemented by software and/or hardware and is integrated in a terminal, and with reference to fig. 1, the method provided in this embodiment includes:
step 110, when the operation of the handover base station is triggered, receiving handover configuration parameter data sent by the current base station, where the handover configuration parameter data includes a common channel configuration set and a power control parameter set.
In this embodiment, the current base station is a base station to which the terminal is currently synchronized, that is, a base station currently communicating with the terminal. The terminal is a mobile device, such as a mobile phone, a notebook, or a tablet computer, which can synchronize with the base station and perform data transmission.
For example, when the terminal communicates with the current base station, if it is detected that the signal strength sent by other neighboring base stations is greater than the signal strength of the current base station, the base station synchronized with the terminal may be switched to the base station with the greater signal strength, so as to ensure the quality of the communication link between the terminal and the base station.
Specifically, when detecting that the signal strength sent by other base stations is greater than the signal strength of the current base station, the terminal triggers the operation of switching the base stations, that is, the terminal is in a state of switching the base stations. And recording the base station to be synchronized of the terminal as a target base station.
Further, when the operation of switching the base station is triggered, the terminal may send a data request signal to the current base station, and receive switching configuration parameter data sent by the base station according to the data request signal. The switching configuration parameter data is a parameter adopted by the terminal when establishing a communication channel with the target base station when switching the base station.
Optionally, the handover configuration parameter data includes a common channel configuration set and a power control parameter set.
Specifically, the common channel refers to a common control channel for transmitting broadcast control information for broadcasting a message from a base station to a terminal and for transmitting a bidirectional signal required for establishing a connection between a mobile services switching center and the terminal. The common channel configuration refers to configuration information of a common channel, which can be set by a core network and is issued to a base station. Such as frequency information and time delay information, etc. The common channel configurations corresponding to different base stations are different.
Further, the common channel configuration set may include common channel configurations of all base stations within a preset range. In this embodiment, the common channel configuration set preferably includes: and synchronizing sequence numbers corresponding to all base stations in a preset range and common channel configuration corresponding to the synchronizing sequence numbers. The preset range may be set by the core network according to an actual situation, for example, the preset range may be one city, or eight hundred square kilometers, and the like. The synchronization sequence number is data included in a synchronization signal broadcast and transmitted by the base station before the terminal and the base station are synchronized.
Typically, the common channel configuration set may be determined by the core network and sent to all base stations within a preset range. The specific determination process may be: the core network obtains synchronization serial numbers of all base stations within a preset range, and configures a common channel configuration corresponding to the synchronization serial numbers, where a specific manner of configuring the common channel configuration is not limited in this embodiment.
Because non-adjacent base stations in the preset range can set the same synchronization serial number, but the public channel configurations corresponding to different base stations are different, preferably, the core network configures at least one public channel configuration for the same synchronization serial number when configuring the public channel configuration, so as to ensure that all base stations in the preset range can have corresponding public channel configurations.
Further, the power control parameter is a parameter for controlling the power of the transmission signal when the terminal transmits data to the base station.
In this embodiment, the set of power control parameters includes: the power control method comprises the steps that at least two power control parameters corresponding to various base stations are obtained by classifying all base stations in a preset range through a core network according to a preset classification rule, and the power control parameters are selected from all power control parameters corresponding to all the base stations.
Typically, the power control parameter set may be determined by the core network and sent to all base stations within a preset range. The specific determination process may be: the core network classifies all base stations within a preset range according to a preset classification rule, wherein the preset range is the same as the preset range of the public channel configuration set, and the preset classification rule can be divided according to the service processing capacity of the base stations, for example, the base stations with strong service processing capacity are divided into large base stations, and the base stations with weak service processing capacity are divided into small base stations. It should be noted that the preset classification rule may also be classified according to the type of the service processed by the base station, and other classification rules are also applicable to this embodiment.
Further, the base station may receive the signal within a certain power control parameter range, and when determining the power control parameter set, it is only necessary to select power control parameters for which the base station can receive the signal, rather than all the power control parameters. Therefore, the core network counts the power control parameters related to all base stations in the preset range, and selects at least two power control parameters for each type of base station in the counted all power control parameters. When at least two power control parameters are selected for each type of base station, the power control parameters with higher correlation rate with the base station may be selected, for example, 60 base stations are total in a preset range, 20 total power control parameters are counted by a core network, three power control parameters are counted and correlated with 9, 7 and 6 base stations respectively, and then the three power control parameter sets are selected to be a power control parameter set. Or at least two power control parameters may be randomly selected among all power control parameters for each class of base station.
Optionally, the core network may adjust the common channel configuration set and the power control parameter set, and send the adjusted data to all base stations within the preset range.
And step 120, acquiring a synchronization signal of a target base station, and acquiring a synchronization serial number of the target base station in the synchronization signal.
Specifically, the synchronization signal is a signal broadcasted by the base station and can be received by the terminal within the communication range, and the terminal can start synchronizing with the base station according to the synchronization signal.
When the terminal triggers the operation of switching the base station, the detected synchronous signal of the target base station is acquired. After demodulating the synchronization signal, the synchronization sequence number included in the synchronization signal is obtained. Specifically, the synchronization sequence numbers of the adjacent base stations are different, and therefore, the terminal can distinguish the adjacent base stations according to the synchronization sequence numbers. The specific method for processing the synchronization signal is not limited in this embodiment.
Step 130, according to the synchronization sequence number, determining a corresponding common channel configuration in the common channel configuration set.
Illustratively, the terminal may find the common channel configuration corresponding to the synchronization sequence number in the common channel configuration set according to the synchronization sequence number.
Specifically, since the synchronization sequence number corresponds to at least one common channel configuration, if the synchronization sequence number corresponds to a plurality of common channel configurations, one common channel configuration may be randomly selected as the current common channel configuration, or the first common channel configuration may be selected as the current common channel configuration according to the arrangement order of the common channel configurations.
Further, if the corresponding synchronization serial number is not found in the common channel configuration set, the terminal may default to an operation failure of switching the base station, and at this time, the terminal continues to communicate with the current base station.
Step 140, sending a probe request signal in a common channel corresponding to the common channel configuration, wherein a power control parameter corresponding to the probe request signal is included in the power control parameter set.
Illustratively, the terminal transmits the probe request signal in a common channel, wherein the specific parameter of the common channel is determined according to the common channel configuration.
Further, the power control parameter corresponding to the probe request signal is included in the power control parameter set. That is, the terminal may select one power control parameter from the power control parameter set as the power of the probe request signal.
Specifically, when the base station receives a signal, the smaller the power of the signal, the smaller the influence on the base station to process other services, and the terminal cannot specify the type of the target base station and the related power control parameter under the current situation. Preferably, the terminal may select a smallest power control parameter among the power control parameter sets as the power control parameter of the current probe request signal. If the terminal cannot complete the detection of the base station by adopting the minimum power control parameter, other power control parameters can be selected as the power control parameters of the current detection signal from small to large.
The terminal may select one power control parameter from the power control parameter set as a power value for the terminal to transmit the probe request signal, select a common channel configuration corresponding to the synchronization sequence number from the common channel configuration set, and transmit the probe request signal in the common channel corresponding to the common channel configuration.
Step 150, in a preset time interval, if a probe response signal corresponding to the probe request signal is received, confirming that the probing of the target base station is completed.
For example, after the terminal sends the probe request signal, if the base station can accurately receive the probe request signal, the base station analyzes the probe request signal, generates a probe response signal, and returns the probe response signal to the terminal. And after receiving the detection response signal, the terminal confirms that the detection of the target base station is finished, can continuously finish the synchronization with the target base station, and takes the synchronized target base station as the current base station.
Further, if the terminal does not receive the probe response information returned by the base station, it can be considered that the terminal fails to detect the target base station, and the terminal continues to communicate with the current base station.
Specifically, after the terminal sends the probe request signal, a preset time interval may be set, and in the preset time interval, if the terminal receives a probe response signal fed back by the target base station according to the probe request signal, it is determined that the probe of the target base station is completed. And if the terminal does not receive the detection response signal fed back by the target base station according to the detection request signal, confirming that the detection on the target base station fails. The preset time interval is set, so that resource waste caused by overlong time for the terminal to wait for receiving the detection response signal can be avoided. The value of the preset time interval may be set according to actual conditions, for example, a time interval of 30ms may be set, and a time interval of 35ms may also be set.
The method for detecting the base station provided by the embodiment of the invention determines the corresponding public channel configuration by receiving the switching configuration parameter data sent by the current base station and confirming the synchronous serial number of the target base station when the operation of the switching base station is triggered, sends the detection request signal in the corresponding public channel, and the power control parameter of the detection request signal is contained in the power control parameter set.
Example two
Fig. 2 is a flowchart of a base station detection method according to a second embodiment of the present invention. The present embodiment is optimized based on the above embodiments. Referring to fig. 2, the method provided in this embodiment specifically includes:
step 210, when the operation of the handover base station is triggered, receiving handover configuration parameter data sent by the current base station, where the handover configuration parameter data includes a common channel configuration set and a power control parameter set.
Step 220, acquiring a synchronization signal of a target base station, and acquiring a synchronization serial number of the target base station in the synchronization signal.
Step 230, determining a corresponding common channel configuration in the common channel configuration set according to the synchronization sequence number.
And 240, sequencing the power control parameters in the power control parameter set from small to large.
When the core network generates the power control parameter sets, the power control parameters in the sets may be sorted in order from small to large. At this time, the terminal may detect whether the power control parameters in the power control parameter set are sorted in a descending order, if so, step 250 may be directly performed, otherwise, the power control parameters in the power control parameter set may be sorted in a descending order.
And step 250, selecting the minimum power control parameter as the current parameter according to the sorting result.
Specifically, when the terminal performs probing on the target base station, it does not know the specific type and the traffic processing capability of the target base station, and therefore, when sending the probe request signal, it needs to sequentially try the power control parameters in the power control parameter set.
And step 260, sending a detection request signal according to the current parameter in a common channel corresponding to the common channel configuration.
Step 270, in a preset time interval, determining whether a probe response signal corresponding to the probe request signal is received. If so, go to step 280, otherwise, go to step 290.
Specifically, if the probe response signal corresponding to the probe request signal is received within the preset time interval, it indicates that the base station can accurately receive the probe request signal sent by the terminal, and at this time, step 280 is executed. If the probe response signal corresponding to the probe request signal is not received within the preset time interval, it indicates that the base station cannot accurately receive the probe request signal sent by the terminal, and at this time, step 290 is performed.
Step 280, confirming that the detection of the target base station is finished.
Step 290, determining whether the power control parameter set includes unselected power control parameters. If so, go to step 2100, otherwise, go to step 2110.
Specifically, it is determined whether the power control parameter set includes unselected power control parameters, that is, whether remaining power control parameters remain in the power control parameter set after removing the power control parameters corresponding to the probe request signal sent by the common channel.
Further, if the power control parameter that is not selected is included, it indicates that the terminal has an unexplored probe request signal, and in this case, step 2100 may be performed. If the power control parameters are not included, it indicates that the terminal has already attempted to transmit the probe request signals corresponding to all the power control parameters in the power control parameter set in the current common channel, and at this time step 2110 is executed.
In step 2100, in the power control parameter set, the current smallest power control parameter is selected as the current parameter according to the sorting order among the unselected power control parameters. Return to perform step 260.
For example, if the terminal selects a parameter from the power control parameter set for the third time, the minimum power control parameter from the power control parameters that have not been selected is selected as the current parameter, that is, the third smallest power control parameter from the entire power control parameter set is selected as the current parameter.
When this step is repeated, the current parameters may be selected in turn in the sorted order.
Step 2110, confirming that the target base station is failed to be detected.
Specifically, after the terminal tries to send the probe request signals corresponding to all the power control parameters in the power control parameter set in the current common channel, the terminal does not receive corresponding probe response signals within a preset time interval, and then it is determined that the target base station is failed to probe.
Optionally, if a plurality of common channel configurations are determined in the common channel configuration set according to the synchronization sequence number of the target base station, after trying to send probe request signals corresponding to all power control parameters in the power control parameter set in a common channel corresponding to one common channel configuration, and not receiving a probe response signal, one common channel configuration may be selected from the remaining common channel configuration sets, and the operation of selecting the minimum power control parameter as the current parameter is continuously performed. If the terminal receives the corresponding probe response signal within a preset time interval after sending the probe request signal, it is determined that the probe of the target base station is completed, and it is not necessary to try other common channel configurations or power control parameters. If the terminal has tried all the common channel configurations corresponding to the synchronization sequence number and all the power control parameters in the power control parameter set and has not received the detection response signal, the terminal confirms that the detection on the target base station fails.
In the technical scheme of this embodiment, a probe request signal is sent in a common channel corresponding to common channel configuration, and a current parameter corresponding to the probe request signal is a minimum power control parameter in a power control parameter set, and if a corresponding probe response signal is not received within a preset time interval, the minimum power control parameter may be sequentially selected as the current parameter from remaining power control parameters in the power control parameter set, and an operation of sending the probe request signal in the common channel is returned until the probe response signal is received, so as to confirm that the probe of the target base station is completed. The target base station can be detected without the need of the terminal for inquiring the parameters in the adjacency list, and the target base station can be detected when the parameters of the target base station do not exist in the adjacency list or the adjacency list fails to be loaded.
EXAMPLE III
Fig. 3 is a flowchart of a base station detection method according to a third embodiment of the present invention. The present embodiment is optimized based on the above embodiments, and referring to fig. 3, the method provided by the present embodiment specifically includes:
step 310, when the operation of the handover base station is triggered, receiving handover configuration parameter data sent by the current base station, where the handover configuration parameter data includes a common channel configuration set and a power control parameter set.
Step 320, acquiring a synchronization signal of a target base station, and acquiring a synchronization serial number of the target base station in the synchronization signal.
Step 330, determining corresponding common channel configurations in the common channel configuration set according to the synchronization sequence number, and if it is determined that the number of the corresponding common channel configurations in the common channel configuration set is at least two according to the synchronization sequence number, selecting one common channel configuration from the at least two common channel configurations according to a set rule.
Specifically, when the core network sets a common channel configuration set, the same synchronization sequence number configures at least one common channel configuration. When the terminal confirms the common channel configuration corresponding to the synchronization sequence number in the common channel configuration set, the situation that the same synchronization sequence number corresponds to at least two common channel configurations may occur, and at this time, when the terminal detects the target base station, it cannot be determined which common channel configuration of the at least two common channel configurations is configured as the common channel configuration corresponding to the target base station.
In consideration of the above situation, one common channel configuration may be selected according to a set rule among at least two common channel configurations, and a common channel corresponding to the common channel configuration may be used as the current common channel. The setting rule may be selected according to an arrangement order of the common channel configurations in the common channel configuration set. Optionally, one common channel configuration may be randomly selected from among the at least two common channel configurations.
Step 340, sending a probe request signal in a common channel corresponding to the common channel configuration, wherein a power control parameter corresponding to the probe request signal is included in the power control parameter set.
Preferably, the step selects the minimum power control parameter that is not selected in the power control parameter set as the current parameter, and sends the probe request signal corresponding to the current parameter in the common channel corresponding to the common channel configuration.
Step 350, within a preset time interval, determining whether a probe response signal corresponding to the probe request signal is received. If so, go to step 360, otherwise, go to step 370.
And step 360, confirming that the detection of the target base station is finished.
Step 370, determining whether to send the probe request signal according to all power control parameters in the power control parameter set in the common channel corresponding to the current common channel configuration. If yes, go to step 380, otherwise, go back to step 340.
If the terminal has selected all the power control parameters in the power control parameter set when sending the probe request signal in the common channel, it indicates that the current common channel configuration is not the common channel configuration corresponding to the target base station, and then step 380 is executed. Otherwise, the procedure may return to step 340, and the probe request signal may be attempted to be transmitted in the current common channel.
Step 380, in the common channel configuration corresponding to the synchronization sequence number, it is determined whether there is a remaining common channel configuration. If so, step 390 is performed, otherwise, step 3100 is performed.
If the remaining common channel configurations exist, the terminal may further try to communicate with the target base station using other common channel configurations.
Step 390, selecting a common channel configuration according to the setting rule among the rest common channel configurations. Return to perform step 340.
Wherein the selection rule of this step may be the same as the selection rule in step 330.
Step 3100, confirming that the probing of the target base station fails.
Specifically, if the terminal attempts all the common channel configurations corresponding to the synchronization sequence number, but does not receive the probe response signal returned by the target base station, it is determined that the probe of the target base station fails.
In the technical solution of this embodiment, by attempting all common channel configurations corresponding to the synchronization sequence number, and when each common channel configuration is attempted, in the corresponding common channel, attempting the probe request signal corresponding to all power control parameters in the power control parameter set, the probe to the target base station can be implemented, and the terminal does not need to query the parameters in the adjacency list, and the probe to the target base station can be implemented when there is no parameter of the target base station in the adjacency list, or when the loading of the adjacency list fails.
Example four
Fig. 4 is a flowchart of a base station detection method according to a fourth embodiment of the present invention. The present embodiment is optimized based on the above embodiments. Referring to fig. 4, the method provided in this embodiment specifically includes:
step 410, when the operation of the switching base station is triggered, receiving an adjacency list and switching configuration parameter data sent by the current base station, wherein the adjacency list records the synchronous serial number, the frequency point, the public channel configuration and the power control parameter of each base station adjacent to the current base station.
Specifically, the current base station sends the switching configuration parameter data to the terminal, and also sends the adjacency list. And recording the synchronization serial number, the frequency point, the public channel configuration and the power control parameter of the neighbor base station of the current base station in the adjacency list. By inquiring the synchronous serial number and the frequency point in the adjacent list, the public channel configuration and the power control parameter of the neighbor base station of the current base station can be determined. The frequency point refers to a specific absolute frequency value, generally a center frequency of a modulation signal, and may be regarded as a number of a fixed frequency. The common channel configuration and power control parameters recorded in the adjacency list are precise common channel configuration and precise power control parameters.
Step 420, acquiring a synchronization signal of a target base station, and acquiring a synchronization serial number and a frequency point of the target base station from the synchronization signal.
Specifically, the frequency point of the target base station can be obtained by processing the synchronization signal of the target base station. The specific method of processing the synchronization signal is not limited in this embodiment.
And 430, when the synchronization sequence number and the frequency point of the target base station are not inquired in the adjacency list, determining the common channel configuration corresponding to the synchronization sequence number in the common channel configuration set.
Specifically, the terminal performs query in the adjacency list according to the synchronization sequence number and the frequency point. If the synchronous serial number and the frequency point corresponding to the target base station are inquired in the adjacency list, the corresponding public channel configuration and the power control parameter can be obtained, and then the detection request signal corresponding to the power control parameter can be sent in the corresponding public channel. If the synchronization serial number and the frequency point are not inquired in the adjacency list, it indicates that the information of the target base station is not recorded in the adjacency list, that is, the common signal configuration and the power control parameter corresponding to the target base station cannot be obtained. At this time, the common channel configuration corresponding to the synchronization sequence number may be determined in the common channel configuration set according to the synchronization sequence number of the target base station. Because the same synchronization serial number may correspond to a plurality of base stations, when the adjacency list is inquired, the synchronization serial number and the frequency point are inquired at the same time, and the uniqueness of the inquiry result can be ensured.
Step 440, sending a probe request signal in a common channel corresponding to the common channel configuration, wherein a power control parameter corresponding to the probe request signal is included in the power control parameter set.
Step 450, in a preset time interval, if a probe response signal corresponding to the probe request signal is received, acquiring an accurate common channel configuration and an accurate power control parameter of the target base station according to the probe response signal.
Specifically, the data recorded in the common channel configuration parameter set and the power control parameter set may ensure that the target base station receives the probe request signal sent by the terminal. However, there is an error between the actual common channel configuration and power control parameter of the target base station and the data determined by the terminal, and in order to make the accuracy rate higher when the terminal subsequently communicates with the target base station, the core network may set that when the target base station sends a probe response signal to the terminal, the probe response signal includes the precise common channel configuration and the precise power control parameter.
Further, when receiving the probe response signal, the terminal obtains an accurate common channel configuration and an accurate power control parameter through signal processing techniques such as demodulation. The specific signal processing technique is not limited in this embodiment.
Step 460, correcting the common channel configuration and the power control parameter according to the precise common channel configuration and the precise power control parameter to confirm that the detection of the target base station is completed.
Furthermore, when the terminal communicates with the target base station subsequently, the terminal adopts the precise public channel configuration and the precise power control parameter.
According to the technical scheme of the embodiment, when the operation of switching the base station is triggered, the switching configuration parameter data and the adjacency list generated by the current base station and the synchronous serial number and the frequency point of the target base station are obtained, whether the target base station is contained in the adjacency list is judged according to the synchronous serial number and the frequency point, if not, the public channel configuration and the power control parameter of the target base station are determined according to the public channel configuration set and the power control parameter set, so that the target base station is detected, and the target base station can be detected when the data of the target base station is not recorded in the neighbor list. And according to the detection response signal of the target base station, the configuration of the accurate common channel and the accurate power control parameter are obtained and corrected, so that the accuracy of the subsequent communication between the terminal and the target base station can be improved.
EXAMPLE five
Fig. 5 is a flowchart of a base station detection method according to a fifth embodiment of the present invention. The present embodiment is a preferred example provided on the basis of the above-described embodiments. Referring to fig. 5, the method provided in this embodiment specifically includes:
step 510, when the operation of switching base stations is triggered, receiving an adjacency list, a common channel configuration set and a power control parameter set sent by a current base station.
And step 520, acquiring the synchronous serial number and the frequency point of the target base station.
And step 530, judging whether the target base station is in the adjacency list according to the frequency point and the synchronous sequence number. If so, go to step 540, otherwise, go to step 550.
Specifically, it is determined whether the target base station is in the adjacency list, that is, whether the synchronization sequence number and the frequency point of the target base station can be queried in the adjacency list.
And 540, detecting the target base station according to the data in the adjacency list.
Step 550, according to the synchronization sequence number, in the common channel configuration set, confirming the corresponding common channel configuration, and selecting a common channel configuration that is not selected by the terminal.
And step 560, according to the power control parameter set, selecting the minimum power control parameter from the power control parameters that are not selected by the terminal, and sending the probe request signal corresponding to the selected power control parameter in the common channel corresponding to the common channel configuration.
Step 570, in a preset time interval, determining whether to receive the probe response signal. If so, go to step 580, otherwise, go to step 590.
And step 580, confirming that the detection of the target base station is finished.
Step 590, determine whether the power control parameter set includes power control parameters that are not selected by the terminal. If yes, go back to step 560, otherwise, go to step 5100.
In step 5100, it is determined whether the common channel configuration corresponding to the synchronization sequence number includes an unselected common channel configuration. If yes, go back to step 550, otherwise, go to step 5110.
Step 5110, confirming that the target base station is failed to be detected.
The following exemplifies a specific implementation process of the terminal for probing the base station.
Specifically, the terminal triggers the operation of switching base stations when detecting that the signal strength of a non-current base station is higher than that of the current base station. The terminal sends a data request signal to the current base station and receives an adjacency list, a public channel configuration set and a power control parameter set sent by the current base station. And the terminal acquires the synchronous serial number and the frequency point of the target base station. When the terminal does not inquire the synchronous serial number and the frequency point of the target base station in the adjacency list, inquiring corresponding public channel configuration C in the public channel configuration set according to the synchronous serial number0And C1And p is included in the power control parameter set0And p1Then the terminal selects C0Corresponding common channel transmission and p0A corresponding probe request signal. If the corresponding probe response signal is not received within 30ms, the terminal sends the response signal p in the current common channel1A corresponding probe request signal. If the corresponding probe response signal is not received within 30ms, the terminal selects C1Corresponding common channel transmission and p0A corresponding probe request signal. If the corresponding detection response signal is received within 30ms, the terminal acquires the precise public channel configuration and the precise power control parameter according to the detection response signal, and compares the parameter with the parameter C1And p0And correcting, and finishing the detection of the target base station after correction.
According to the technical scheme of the embodiment, the target base station can still be detected when the neighbor list does not have the common channel configuration and the power control parameter corresponding to the target base station.
EXAMPLE six
Fig. 6 is a schematic structural diagram of a base station detection apparatus according to a sixth embodiment of the present invention. Referring to fig. 6, the apparatus provided in this embodiment is applied to a terminal, and specifically includes: the device comprises a data receiving module 61, a synchronization acquiring module 62, a channel configuring module 63, a signal sending module 64 and a detection confirming module 65. Wherein,
a data receiving module 61, configured to receive handover configuration parameter data sent by a current base station when a handover base station operation is triggered, where the handover configuration parameter data includes a common channel configuration set and a power control parameter set;
a synchronization acquiring module 62, configured to acquire a synchronization signal of a target base station, and acquire a synchronization serial number of the target base station from the synchronization signal;
a channel configuration module 63, configured to determine, according to the synchronization sequence number, a corresponding common channel configuration in the common channel configuration set;
a signal sending module 64, configured to send a probe request signal in a common channel corresponding to the common channel configuration, where a power control parameter corresponding to the probe request signal is included in the power control parameter set;
a probe confirmation module 65, configured to confirm that the probing of the target base station is completed if the probe response signal corresponding to the probe request signal is received within a preset time interval.
When the operation of the handover base station is triggered, the device for detecting the base station determines the corresponding common channel configuration by receiving the handover configuration parameter data sent by the current base station and confirming the synchronization serial number of the target base station, and sends the detection request signal in the corresponding common channel, and the detection power parameter of the detection request signal is included in the detection power parameter set.
On the basis of the foregoing embodiments, the signal sending module 64 may include:
the sorting unit is used for sorting the power control parameters in the power control parameter set from small to large;
the first parameter unit is used for selecting the minimum power control parameter as the current parameter according to the sorting result;
and the sending unit is used for sending a detection request signal according to the current parameter in a common channel corresponding to the common channel configuration.
Accordingly, the apparatus may comprise:
a parameter determining module, configured to select, within a preset time interval, unselected power control parameters as current parameters in the power control parameter set according to a sorting order in sequence if a probe response signal corresponding to the probe request signal is not received;
a first returning module, configured to return to perform an operation of sending a probe request signal according to the current parameter in a common channel corresponding to the common channel configuration until a probe response signal corresponding to the probe request signal is received within a preset time interval.
On the basis of the foregoing embodiments, the channel configuration module 63 may specifically be configured to:
and if the number of the corresponding public channel configurations is determined to be at least two in the public channel configuration set according to the synchronous serial number, selecting one public channel configuration from the at least two public channel configurations according to a set rule.
Correspondingly, the device may further include:
a channel determining module, configured to, within a preset time interval, if a probe request signal is sent according to all power control parameters in a power control parameter set in a common channel corresponding to a current common channel configuration and then a probe response signal corresponding to the probe request signal is not yet received, sequentially select one common channel configuration in the remaining common channel configurations according to a set rule;
and a second returning module, configured to return to perform an operation of sending the probe request signal in the common channel corresponding to the common channel configuration until receiving the probe response signal corresponding to the probe request signal within a preset time interval.
On the basis of the foregoing embodiments, the detection confirmation module 65 may include:
an accurate data obtaining unit, configured to obtain, within a preset time interval, an accurate common channel configuration and an accurate power control parameter of the target base station according to a probe response signal corresponding to the probe request signal if the probe response signal is received;
and the correcting unit is used for correcting the common channel configuration and the power control parameter according to the accurate common channel configuration and the accurate power control parameter so as to confirm that the detection of the target base station is finished.
On the basis of the foregoing embodiments, the set of power control parameters includes: the power control method comprises the steps that at least two power control parameters corresponding to various base stations are obtained by classifying all base stations in a preset range through a core network according to a preset classification rule, and the power control parameters are selected from all power control parameters corresponding to all the base stations.
On the basis of the foregoing embodiments, the common channel configuration set includes: and synchronizing sequence numbers corresponding to all base stations in a preset range and common channel configuration corresponding to the synchronizing sequence numbers.
On the basis of the foregoing embodiments, the data receiving module 61 may specifically be configured to:
when the operation of a switching base station is triggered, receiving an adjacency list and switching configuration parameter data sent by a current base station, wherein the adjacency list records a synchronous serial number, a frequency point, a common channel configuration and a power control parameter of each base station adjacent to the current base station.
Correspondingly, the synchronization acquiring module 62 may be specifically configured to:
and acquiring a synchronous signal of a target base station, and acquiring a synchronous serial number and a frequency point of the target base station from the synchronous signal.
Correspondingly, the channel configuration module 63 may be specifically configured to:
and when the synchronization serial number and the frequency point of the target base station are not inquired in the adjacency list, determining the public channel configuration corresponding to the synchronization serial number in the public channel configuration set.
The device provided by the embodiment of the invention can be used for executing the method provided by any embodiment, and has corresponding functions and beneficial effects.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (14)
1. A method for detecting a base station is applied to a terminal, and is characterized by comprising the following steps:
when the operation of a switching base station is triggered, receiving switching configuration parameter data sent by a current base station, wherein the switching configuration parameter data comprises a public channel configuration set and a power control parameter set;
acquiring a synchronization signal of a target base station, and acquiring a synchronization serial number of the target base station from the synchronization signal;
determining corresponding public channel configuration in the public channel configuration set according to the synchronous serial number;
sending a probe request signal in a common channel corresponding to the common channel configuration, wherein a power control parameter corresponding to the probe request signal is included in the power control parameter set;
and in a preset time interval, if a detection response signal corresponding to the detection request signal is received, confirming that the detection of the target base station is finished.
2. The method of claim 1, wherein sending a probe request signal in a common channel corresponding to the common channel configuration, wherein a power control parameter corresponding to the probe request signal is included in the set of power control parameters comprises:
sequencing the power control parameters in the power control parameter set from small to large;
selecting the minimum power control parameter as the current parameter according to the sorting result;
sending a detection request signal according to the current parameter in a common channel corresponding to the common channel configuration;
correspondingly, the method also comprises the following steps:
within a preset time interval, if a detection response signal corresponding to the detection request signal is not received, sequentially selecting unselected power control parameters as current parameters according to a sorting sequence in the power control parameter set;
and returning to execute the operation of sending the detection request signal according to the current parameter in the common channel corresponding to the common channel configuration until receiving the detection response signal corresponding to the detection request signal within a preset time interval.
3. The method of claim 1, wherein determining the corresponding common channel configuration in the set of common channel configurations according to the synchronization sequence number comprises:
if the number of the corresponding public channel configurations is determined to be at least two in the public channel configuration set according to the synchronous serial number, selecting one public channel configuration from the at least two public channel configurations according to a set rule;
correspondingly, the method also comprises the following steps:
within a preset time interval, if a detection request signal is sent according to all power control parameters in a power control parameter set in a common channel corresponding to the current common channel configuration and a detection response signal corresponding to the detection request signal is not received, one common channel configuration is selected in sequence according to a set rule in the rest common channel configurations;
and returning to execute the operation of sending the probe request signal in the common channel corresponding to the common channel configuration until the probe response signal corresponding to the probe request signal is received within a preset time interval.
4. The method of claim 1, wherein confirming completion of probing the target base station if a probe response signal corresponding to the probe request signal is received within a preset time interval comprises:
within a preset time interval, if a detection response signal corresponding to the detection request signal is received, acquiring accurate common channel configuration and accurate power control parameters of the target base station according to the detection response signal;
and correcting the common channel configuration and the power control parameter according to the accurate common channel configuration and the accurate power control parameter so as to confirm that the target base station is detected.
5. The method of claim 1, wherein the set of power control parameters comprises: the power control method comprises the steps that at least two power control parameters corresponding to various base stations are obtained by classifying all base stations in a preset range through a core network according to a preset classification rule, and the power control parameters are selected from all power control parameters corresponding to all the base stations.
6. The method of claim 1, wherein the set of common channel configurations comprises: and synchronizing sequence numbers corresponding to all base stations in a preset range and common channel configuration corresponding to the synchronizing sequence numbers.
7. The method of claim 1, wherein receiving handover configuration parameter data sent by a current base station when triggering handover base station operations comprises:
when the operation of a switching base station is triggered, receiving an adjacency list and switching configuration parameter data sent by a current base station, wherein the adjacency list records a synchronous serial number, a frequency point, a common channel configuration and a power control parameter of each base station adjacent to the current base station;
correspondingly, acquiring a synchronization signal of a target base station, and acquiring a synchronization sequence number of the target base station in the synchronization signal includes:
acquiring a synchronous signal of a target base station, and acquiring a synchronous serial number and a frequency point of the target base station from the synchronous signal;
correspondingly, determining the corresponding common channel configuration in the common channel configuration set according to the synchronization sequence number includes:
and when the synchronization serial number and the frequency point of the target base station are not inquired in the adjacency list, determining the public channel configuration corresponding to the synchronization serial number in the public channel configuration set.
8. A device for base station detection is applied to a terminal, and is characterized by comprising:
the base station comprises a data receiving module, a power control module and a switching module, wherein the data receiving module is used for receiving switching configuration parameter data sent by a current base station when the operation of a switching base station is triggered, and the switching configuration parameter data comprises a public channel configuration set and a power control parameter set;
the synchronization acquisition module is used for acquiring a synchronization signal of a target base station and acquiring a synchronization serial number of the target base station from the synchronization signal;
a channel configuration module, configured to determine, according to the synchronization sequence number, a corresponding common channel configuration in the common channel configuration set;
a signal sending module, configured to send a probe request signal in a common channel corresponding to the common channel configuration, where a power control parameter corresponding to the probe request signal is included in the power control parameter set;
and the detection confirmation module is used for confirming that the detection of the target base station is finished if a detection response signal corresponding to the detection request signal is received within a preset time interval.
9. The apparatus of claim 8, wherein the signal sending module comprises:
the sorting unit is used for sorting the power control parameters in the power control parameter set from small to large;
the first parameter unit is used for selecting the minimum power control parameter as the current parameter according to the sorting result;
a sending unit, configured to send a probe request signal according to the current parameter in a common channel corresponding to the common channel configuration;
correspondingly, the method also comprises the following steps:
a parameter determining module, configured to select, within a preset time interval, unselected power control parameters as current parameters in the power control parameter set according to a sorting order in sequence if a probe response signal corresponding to the probe request signal is not received;
a first returning module, configured to return to perform an operation of sending a probe request signal according to the current parameter in a common channel corresponding to the common channel configuration until a probe response signal corresponding to the probe request signal is received within a preset time interval.
10. The apparatus of claim 8, wherein the channel configuration module is specifically configured to:
if the number of the corresponding public channel configurations is determined to be at least two in the public channel configuration set according to the synchronous serial number, selecting one public channel configuration from the at least two public channel configurations according to a set rule;
correspondingly, the method also comprises the following steps:
a channel determining module, configured to, within a preset time interval, if a probe request signal is sent according to all power control parameters in a power control parameter set in a common channel corresponding to a current common channel configuration and then a probe response signal corresponding to the probe request signal is not yet received, sequentially select one common channel configuration in the remaining common channel configurations according to a set rule;
and a second returning module, configured to return to perform an operation of sending the probe request signal in the common channel corresponding to the common channel configuration until receiving the probe response signal corresponding to the probe request signal within a preset time interval.
11. The apparatus of claim 8, wherein the probe confirmation module comprises:
an accurate data obtaining unit, configured to obtain, within a preset time interval, an accurate common channel configuration and an accurate power control parameter of the target base station according to a probe response signal corresponding to the probe request signal if the probe response signal is received;
and the correcting unit is used for correcting the common channel configuration and the power control parameter according to the accurate common channel configuration and the accurate power control parameter so as to confirm that the detection of the target base station is finished.
12. The apparatus of claim 8, wherein the set of power control parameters comprises: the power control method comprises the steps that at least two power control parameters corresponding to various base stations are obtained by classifying all base stations in a preset range through a core network according to a preset classification rule, and the power control parameters are selected from all power control parameters corresponding to all the base stations.
13. The apparatus of claim 8, wherein the set of common channel configurations comprises: and synchronizing sequence numbers corresponding to all base stations in a preset range and common channel configuration corresponding to the synchronizing sequence numbers.
14. The apparatus of claim 8, wherein the data receiving module is specifically configured to:
when the operation of a switching base station is triggered, receiving an adjacency list and switching configuration parameter data sent by a current base station, wherein the adjacency list records a synchronous serial number, a frequency point, a common channel configuration and a power control parameter of each base station adjacent to the current base station;
correspondingly, the synchronization acquisition module is specifically configured to:
acquiring a synchronous signal of a target base station, and acquiring a synchronous serial number and a frequency point of the target base station from the synchronous signal;
correspondingly, the channel configuration module is specifically configured to:
and when the synchronization serial number and the frequency point of the target base station are not inquired in the adjacency list, determining the public channel configuration corresponding to the synchronization serial number in the public channel configuration set.
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