CN109151854B - Minimization of drive tests method, base station and computer storage medium - Google Patents
Minimization of drive tests method, base station and computer storage medium Download PDFInfo
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- CN109151854B CN109151854B CN201710502446.8A CN201710502446A CN109151854B CN 109151854 B CN109151854 B CN 109151854B CN 201710502446 A CN201710502446 A CN 201710502446A CN 109151854 B CN109151854 B CN 109151854B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/02—Arrangements for optimising operational condition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0212—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave
- H04W52/0219—Power saving arrangements in terminal devices managed by the network, e.g. network or access point is master and terminal is slave where the power saving management affects multiple terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
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- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the invention discloses a minimization of drive tests method, a base station and a computer storage medium. The minimization of drive tests method is applied to a base station and comprises the following steps: selecting part of UE from User Equipment (UE) meeting the activation condition of a connection state MDT task to execute positioning measurement in the connection state MDT task and report position information obtained by the positioning measurement; sending, to the selected UE, connected MDT configuration information indicating that the positioning measurement is performed.
Description
Technical Field
The present invention relates to the field of mobile communications, and in particular, to a minimization of drive tests method, a base station, and a computer storage medium.
Background
The drive test is an automatic drive test technology which controls the user equipment to carry out data acquisition and report at the position where the user equipment passes by issuing configuration information to the user equipment. And after receiving the configuration information of the drive test, the user equipment carries out measurement and reports the measurement result to the base station when meeting the measurement condition. And after receiving the report, the base station processes the measurement data, or submits the measurement data to a network element of a higher layer for processing such as radio resource management.
In the prior art, the base station can uniformly instruct the user equipment to continue the drive test and position itself through the issuing of the drive test task. After receiving the drive test task, the ue usually uses a periodic trigger mode to perform measurement every fixed period, and simultaneously performs its own positioning and reports the positioning information to the base station. If the ue performs its own positioning, for example, positioning via latitude and longitude by using a global positioning system (GNSS) module, the ue is an operation with relatively high energy consumption. If the user equipment operates frequently, the energy consumption of the user equipment is obviously large, and the standby time is short. If the base station does not configure the ue for self-positioning, the base station cannot obtain sufficient location information about the ue distribution, and cannot perform operations such as radio resource optimization management and ue tracking.
Therefore, it is an urgent technical problem to be solved in the prior art to provide a technique for not only obtaining the positioning information required by the base station, but also reducing the power consumption of the ue to prolong the standby time of the ue.
Disclosure of Invention
Embodiments of the present invention are directed to a minimization of drive tests method, a base station and a computer storage medium, which at least partially solve the above problems.
In order to achieve the purpose, the technical scheme of the invention is realized as follows:
the embodiment of the invention provides a minimization of drive tests method, which is applied to a base station and comprises the following steps:
selecting part of UE from User Equipment (UE) meeting the activation condition of a connection state MDT task to execute positioning measurement in the connection state MDT task and report position information obtained by the positioning measurement;
sending, to the selected UE, connected MDT configuration information indicating that the positioning measurement is performed.
Based on the above scheme, the method further comprises:
sending, to the unselected UE, connected MDT configuration information indicating that the positioning measurement is not performed.
Based on the above scheme, the method further comprises:
obtaining the effective proportion of the acquired position information field;
selecting part of UE from the UE meeting the activation condition of the MDT task in the connection state to execute the positioning measurement in the MDT task in the connection state and report the position information obtained by the positioning measurement, wherein the position information comprises the following steps:
selecting UE with the ratio equal to the effective ratio from the UE meeting the activation condition of the connected MDT task to execute the positioning measurement and the report of the position information;
the sending, to the selected UE, the connected MDT configuration information indicating that the positioning measurement is performed includes:
and sending the connection state MDT configuration information indicating that the field for acquiring the position information takes effect to the selected UE.
Based on the above scheme, the method further comprises:
acquiring a transition period of the acquired position information;
selecting the UE with the ratio equal to the effective ratio from the UEs meeting the activation condition of the connected MDT task to execute the positioning measurement and the report of the position information, wherein the method comprises the following steps:
and in the transition period, selecting the UE with the ratio equal to the effective ratio from the UEs meeting the activation condition of the connected MDT task to execute the positioning measurement and the reporting of the position information.
Based on the above solution, the selecting, from the UEs performing the connected MDT activation task, UEs whose percentage is equal to the effective percentage to perform the positioning measurement in the transition period indicated by the transition period includes:
and in the transition period, randomly selecting the UE with the effective ratio equal to the effective ratio from the UE executing the MDT activation task in the connection state to execute the positioning measurement and the reporting of the position information.
Based on the above solution, the selecting, from the UEs performing the connected MDT activation task, UEs whose percentage is equal to the effective percentage to perform the positioning measurement in the transition period indicated by the transition period includes:
and in the transition period, selecting the UE with the ratio equal to the effective ratio from the UE executing the MDT activation task in the connection state according to a polling algorithm to execute the positioning measurement and the reporting of the position information.
Based on the above scheme, the method further comprises:
receiving a Radio Resource Control (RRC) connection establishment connection message sent by the UE according with the MDT activation condition in the connection state;
in the transition period, selecting, according to a polling algorithm, the UE whose percentage is equal to the effective percentage from the UEs that execute the MDT activation task in the connected state to execute the positioning measurement and report the location information, where the selecting includes:
and in the transition period, according to the time when the RRC connection establishment message reaches the base station, sequentially selecting the UE with the ratio equal to the effective ratio according to the time sequence to execute the positioning measurement and the reporting of the position information.
Based on the above scheme, the method further comprises:
recording the selected UE performing the positioning measurement;
and when the number of the unselected UEs in the transition period is not enough to enable the proportion of the selected UEs to be larger than the effective proportion, clearing the record and selecting the UEs for executing the positioning measurement according to the time when the RRC connection establishment message reaches the base station according to the time sequence until the proportion of the selected UEs is equal to the effective proportion or the MDT task in the connection state is finished.
A second aspect of the embodiments of the present invention provides a base station, including:
the first transceiver can carry out information interaction with the user equipment;
and the first processor is connected with the first transceiver and is used for implementing the minimization of drive test method provided by one or more of the technical schemes through the execution of a computer program.
A third aspect of the embodiments of the present invention provides a base station, including:
a computer program;
and a second processor, configured to implement the minimization of drive test method according to one or more of the foregoing technical solutions by executing the computer program.
A fourth aspect of the embodiments of the present invention provides a computer storage medium, where a computer program is stored, and after the computer program is executed, the method for minimization of drive test according to one or more of the foregoing technical solutions can be implemented.
The embodiment of the invention provides a minimization of drive tests method, a base station and a computer storage medium, changes the mode of uniformly indicating all UE (user equipment) meeting the activation condition of a connected MDT task to carry out positioning measurement in the prior art, selects a part from all UE meeting the activation condition of the connected MDT task to carry out positioning measurement according to the quantity of currently required position information and the like, and enables the selected UE to execute the positioning measurement in the connected MDT task and unselected UE not to execute the positioning measurement in the connected MDT task through the issuing of differentiated connected MDT configuration information. Therefore, unnecessary positioning measurement of a part of UE is reduced, power consumption caused by positioning measurement is reduced, power consumption of at least a part of UE is reduced, and standby time of the part of UE is prolonged. As a whole, not every UE will be selected to perform positioning measurement every time, so that the number of times that every UE is selected to perform positioning measurement in the connected MDT task can be reduced in consideration of the whole probability, and thus the power consumption of the UE due to positioning measurement in the connected MDT task can be reduced as a whole.
Drawings
Fig. 1 is a schematic flow chart of a first method for minimization of drive tests according to an embodiment of the present invention;
fig. 2 is a schematic flow chart of a second minimization of drive test method according to an embodiment of the present invention;
fig. 3 is a schematic flowchart of a third minimization of drive test method according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a minimization of drive test system according to an embodiment of the present invention;
fig. 6 is a flowchart illustrating a fourth minimization of drive test method according to an embodiment of the present invention.
Detailed Description
The technical solution of the present invention is further described in detail with reference to the drawings and the specific embodiments of the specification.
As shown in fig. 1, the present embodiment provides a minimization of drive test method, which is applied in a base station, and includes:
step S110: selecting part of UE from the UE which accords with the activation condition of the connected MDT task to execute the positioning measurement in the connected MDT task and the report of the position information obtained by the positioning measurement;
step S120: sending, to the selected UE, connected MDT configuration information indicating that the positioning measurement is performed.
The minimization of drive tests method provided in the present embodiment is a method applied to a base station. The base station may be an evolved node b (eNB) and may also be a next generation base station (gNB).
And when the base station indicates the UE to carry out the MDT task, the base station controls the UE to execute the MDT task by issuing connection-state MDT configuration information to the UE. The MDT task includes a positioning measurement that controls the UE to position its own location, for example, perform global satellite positioning to obtain positioning information, and report the positioning information to the base station periodically.
The UE that meets the condition for activating the connected MDT task is a UE that has access to the base station and can perform the MDT task. In this embodiment, in order to enable a base station or an upstream network element (e.g., an internet management system (EMS)) or a core network element (e.g., a Mobility Management Entity (MME)) upstream of the base station, on the one hand, to obtain location information of the most sufficient number of UEs while avoiding simultaneously instructing all UEs to perform positioning measurement. Firstly, selecting part of UE from all the UE meeting the activation condition of the MDT task in the connection state, and executing the positioning measurement by the selected UE. For example, if N UEs currently meeting the activation condition of the connected MDT task include N UEs, step S110 may select M UEs performing the positioning measurement from the N UEs; wherein M is less than or equal to N. The remaining N-M UEs are the unselected UEs, and the unselected UEs do not perform positioning measurement in the MDT task. Specifically, the method further comprises: sending, to the unselected UE, connected MDT configuration information indicating that the positioning measurement is not performed.
After the selection of the UE is completed, it is necessary to send connection MDT configuration information to all UEs meeting the activation condition of the connection MDT task. However, in this embodiment, the connection-state MDT configuration information indicating that the positioning measurement is performed is transmitted to the selected UE, and the connection-state MDT configuration information indicating that the positioning measurement is not performed is transmitted to the unselected UE. Thus, when the selected UE receives the connection state MDT configuration information and executes the MDT task according to the connection state MDT configuration information, the selected UE executes self positioning and reports the position information obtained by positioning to the base station. And after the unselected UE receives the connection state MDT configuration information, the UE cannot perform self-positioning and report position information when performing an MDT task according to the connection state MDT configuration information.
For example, the UEs meeting the MDT task activation condition in the connected state are referred to as candidate UEs, the selected UEs are referred to as first-class UEs, and the unselected UEs are referred to as second-class UEs, so that the sum of the first-class UEs and the second-class UEs is equal to the number of the candidate UEs. Thus, the first type UE and the second type UE receive different connection MDT configuration information, the first type UE performs positioning measurement when performing MDT task, and the second type UE does not perform positioning measurement.
In this way, if positioning measurement is not required to be performed by all UEs meeting the activation condition of the connected MDT task, only a part of UEs may be selected to perform positioning measurement, and the UEs not requiring performing positioning measurement save power consumption for performing unnecessary positioning measurement, which reduces power consumption of the part of UEs and prolongs standby time of the part of UEs.
Optionally, as shown in fig. 2, the method further includes:
step S101: obtaining the effective proportion of the acquired position information field; the effective ratio here may be indicated by an effective ratio parameter.
The step S110 may include:
selecting UE with the ratio equal to the effective ratio from the UE meeting the activation condition of the connected MDT task to execute the positioning measurement and the report of the position information;
the step S120 may include:
and sending the connection state MDT configuration information indicating that the field for acquiring the position information takes effect to the selected UE.
In this embodiment, the base station may first obtain the effective ratio of the field of the obtained location information. The field for obtaining the location information is a field for indicating the UE to perform the positioning measurement. The effective proportion may be a proportion value, generally takes any value between 0 and 1, and the specific value of the effective proportion may be a fixed value configured at will, or an empirical value determined empirically, or an experimental value obtained from laboratory simulation or the like.
In this embodiment, the number of selected UEs in the candidate UEs is determined by the effective ratio. If one UE is selected to perform the positioning measurement, the connection MDT configuration information received by the UE includes an effective bit, where the effective bit is used to indicate that the field for acquiring the location information is effective. Thus, the UE receives the MDT configuration information, determines a determination result of whether the obtained location information field is valid according to the value of the valid bit, and if the obtained location information field is determined to be valid, executes the positioning measurement and reports the location information of the positioning measurement to the base station. If the UE determines, according to the value of the valid bit, a determination result that the obtained location information field is not valid, the UE does not perform positioning measurement and does not correct the location information.
The UEs selected to perform positioning measurements in this embodiment are based on the effective ratio. In some embodiments, the base station may further determine, directly according to the effective number and other parameters, the number of UEs that need to be selected to perform the positioning measurement.
The effective proportion can be received by the base station from the MES or the EPS, or can be stored in the base station in advance, and the base station reads from a local storage medium.
In some embodiments, the method further comprises:
acquiring a transition period of the acquired position information; the transition period here may be indicated by a transition period parameter, and the transition period parameter may be received from the network manager or from the core network.
The step S120 includes:
and in the transition period, selecting the UE with the ratio equal to the effective ratio from the UEs meeting the activation condition of the connected MDT task to execute the positioning measurement and the reporting of the position information.
The base station also obtains the transition period in this embodiment, for example, the transition period may be received from an EMS or EPC. Wherein the transition period may be used to directly or indirectly indicate the transition period. For example, the transition period may be a period length of the transition period, or may be a parameter indicating a start time and an end time of the period. In general, the duration of a transition period may be determined based on the transition period, or the need to verify that a period transition is made.
In step S120, in a transition period, the UEs with the corresponding percentage are selected according to the effective percentage to perform the positioning measurement, and the UEs that are not selected perform the positioning measurement. The obtaining position information indicated by the effective bit in the connection state MDT configuration parameters received by the unselected UE is not effective.
There are many ways how to specifically select the UE in step S120, for example, the following provides several alternatives:
alternative one (random selection):
the step S120 may include:
and in the transition period, randomly selecting the UE with the effective ratio equal to the effective ratio from the UE executing the MDT activation task in the connection state to execute the positioning measurement and the reporting of the position information.
The random selection may include: according to a random algorithm.
For example, a random number is generated for each candidate UE meeting the connection-state MDT task activation condition, the random number is compared with the effective proportion, if the random number corresponding to one UE is smaller than the effective proportion, the UE is selected to perform the positioning measurement, otherwise, the UE is an unselected UE.
Of course, the above is only a random selection method for selecting the UE performing the positioning measurement, and the specific implementation is not limited to the above example.
Alternative mode two (Polling selection)
The step S120 may include:
and in the transition period, selecting the UE with the ratio equal to the effective ratio from the UE executing the MDT activation task in the connection state according to a polling algorithm to execute the positioning measurement and the reporting of the position information.
The polling selection is typically a selection in a certain polling order, for example, a polling in a time polling order, or a predetermined ordering order of the UE's identification codes, etc. Specifically, for example, polling is performed according to the time sequence of accessing the UE to the base station, or the UE with the effective ratio equal to the effective ratio is selected according to the polling sequence in which the characters of the UE identification code are sorted from small to large.
Specifically, the method further comprises:
and receiving a Radio Resource Control (RRC) connection establishment connection message sent by the UE according with the MDT activation condition in the connection state. Once the base station receives the RRC connection setup message, it indicates that the UE and the base station that sent the RRC connection setup message have completed connection setup, and the UE has entered the connected state from the idle state.
At this time, the step S120 may include:
and in the transition period, according to the time when the RRC connection establishment message reaches the base station, sequentially selecting the UE with the ratio equal to the effective ratio according to the time sequence to execute the positioning measurement and the reporting of the position information.
In this embodiment, polling selection is performed according to the time sequence according to the time when the RRC connection setup message sent by the corresponding UE reaches the base station, so that the UE sending the RRC connection setup message earlier is selected to perform the positioning measurement earlier.
In some cases, it may be that, if the current transition period is about to end, the proportion of the alternative UEs that meet the condition of activating the MDT task in the connected state that successfully switch to the connected state is less than the effective proportion. In order to solve the problem in this scenario that the base station obtains enough location information, the method in this embodiment further includes:
recording the selected UE performing the positioning measurement;
and when the number of the unselected UEs in the transition period is not enough to enable the proportion of the selected UEs to be larger than the effective proportion, clearing the record and selecting the UEs for executing the positioning measurement according to the time when the RRC connection establishment message reaches the base station according to the time sequence until the proportion of the selected UEs is equal to the effective proportion.
For example, the identity of the UE selected using the register; when the end is coming in the transition period, even if the currently unselected UEs are all selected as the UEs performing the positioning measurement, if the occupation ratio of the selected UEs does not reach the effective ratio, the record is cleared, and the UEs having access to the base station are polled and selected again according to the time sequence until the number of the selected UEs reaches the occupation ratio or the connected MDT task is ended.
In this way, it may happen that a UE is selected twice, and two side positioning measurements and two reports may be required within one connected MDT task. But this is generally less the case.
As shown in fig. 3, another aspect of the embodiments of the present invention further provides a minimization of drive test method, applied in a UE, including:
step S210: receiving connection state MDT configuration information sent by a base station;
step S220: and when the connected MDT configuration information indicates that positioning measurement is carried out, executing the positioning measurement in the connected MDT task and reporting the position information obtained by the positioning measurement.
Specifically, the step S210 may include:
receiving connection state MDT configuration information carrying an indication of whether the acquired position information field is effective or not;
the step S210 may include:
when the connected MDT configuration information indicates that the field for acquiring the position information is effective, the positioning measurement in the connected MDT task is executed.
In some embodiments, the connection-state MDT configuration information received by the UE may include not only the location information field but also an effective bit for acquiring the location information field, and determine whether positioning measurement is required to be performed when the current connection-state MDT task is executed according to the effective bit, if so, the positioning measurement is not performed, and the reporting of the location information is not performed.
In other embodiments, the connection-state MDT configuration information currently received by the UE may carry the field of acquiring location information, or may not carry the field of acquiring location information. And if the field carrying the acquired position information is selected to carry out positioning measurement in the MDT task in the connection state, performing the positioning measurement, and if the field not carrying the acquired position information is not used, not performing the positioning measurement.
In some embodiments, the obtained location information fields in the connected MDT configuration information received by the first type of UE and the second type of UE are different, for example, the obtained location information received by the first type of UE is a non-empty field and has specific information content, where the information content may include information indicating location information reporting, and the obtained location information field in the connected MDT configuration information received by the second type of UE that is not selected to perform positioning measurement may be an empty field that does not carry any content, or the field is a predetermined sequence field of a predetermined sequence, and the UE may consider that the UE does not perform positioning measurement in the connected MDT task by itself when receiving the empty field or the predetermined sequence field.
In short, in the embodiment of the present invention, all UEs meeting the activation condition of the connected MDT task do not need to perform positioning measurement and report the location information, so that the power consumption of at least a part of UEs is reduced, and the standby duration of the part of UEs is prolonged.
As shown in fig. 4, a base station includes:
a first transceiver 110 capable of information interaction with a user equipment;
a first processor 120, connected to the first transceiver, for performing a minimization of drive tests method provided by one or more of the above technical solutions through a computer program, for example, one or more of the methods shown in fig. 1 to 3.
The first transceiver 110 may correspond to a transceiving antenna or a transceiving array, etc. having data transmission. The aforementioned transmitting panel is a component of the first transceiver 110.
In this embodiment, the first processor 120 may be a Central Processing Unit (CPU), a Microprocessor (MCU), a Digital Signal Processor (DSP), an Application Processor (AP), a programmable logic array (PLC), an Application Specific Integrated Circuit (ASIC), or the like.
The first processor 120 may be connected to the first transceiver 110 through a bus interface such as an integrated circuit bus.
An embodiment of the present invention further provides a base station, including:
a computer program;
and a second processor, configured to implement the minimization of drive tests provided by one or more of the above technical solutions by executing the computer program, for example, one or more of the methods shown in fig. 1 to 3.
An embodiment of the present invention further provides a computer storage medium, where a computer program is stored, and after the computer program is executed, the method for minimization of drive test provided by one or more of the above technical solutions can be implemented, for example, as shown in one or more of fig. 1 to 3.
The computer storage medium can be various storage media such as a read-only storage medium, a flash memory, a mobile hard disk, an optical disk or a magnetic tape, and can be selected as a non-transitory storage medium.
An embodiment of the present invention further provides another base station, including:
the device comprises a selection unit, a processing unit and a processing unit, wherein the selection unit is used for selecting part of User Equipment (UE) from the UE which accords with the activation condition of a connection state MDT task to execute positioning measurement in the connection state MDT task and report position information obtained by the positioning measurement;
a sending unit, configured to send connection-state MDT configuration information indicating that the positioning measurement is performed to the selected UE.
The selection unit corresponds to the processor or the processing circuit.
The transmitting unit corresponds to the aforementioned transceiver such as the transmitting antenna.
Optionally, the sending unit is further configured to send, to an unselected UE, connection-state MDT configuration information indicating that the positioning measurement is not performed.
Optionally, the base station further includes:
the acquiring unit is used for acquiring the effective proportion of the acquired position information field;
the selecting unit is specifically configured to select, from the UEs meeting the connection-state MDT task activation condition, the UE whose percentage is equal to the effective percentage to perform the positioning measurement and report the location information;
the sending unit is specifically configured to send, to the selected UE, the connection-state MDT configuration information indicating that the field for obtaining the location information takes effect.
The obtaining unit may correspond to a communication interface, may receive the effective proportion from another device, and may also correspond to a processor or a processing circuit, and read the effective proportion from a local storage medium.
Optionally, the obtaining unit is further configured to obtain a transition period of the obtained location information;
the selecting unit is further configured to select, in the transition period, the UE whose percentage is equal to the effective percentage from the UEs meeting the activation condition of the connected MDT task, and perform the positioning measurement and report the location information.
Optionally, the selecting unit is specifically configured to randomly select, in the transition period, the UE whose percentage is equal to the effective percentage from the UEs that execute the connected MDT activation task to perform the positioning measurement and report the location information.
Optionally, the selecting unit is further specifically configured to select, in the transition period, a UE whose percentage is equal to the effective percentage from UEs that execute the connected MDT activation task according to a polling algorithm, and perform the positioning measurement and report of the location information.
Further, the base station further includes:
the receiving unit is configured to receive a radio resource control RRC connection setup connection message sent by the UE meeting the MDT activation condition in the connected state, and may correspond to a receiving antenna, for example, the first transceiver.
The selecting unit is specifically configured to, in the transition period, sequentially select, according to a time sequence when the RRC connection setup message reaches the base station, UEs whose percentage is equal to the effective percentage to perform the positioning measurement and report the location information.
Optionally, the base station further includes:
a storage unit, configured to record the selected UE performing the positioning measurement;
the selecting unit is further configured to, when the number of unselected UEs in the transition period is not sufficient to make the percentage of the selected UE larger than the effective percentage, clear the record and select, according to the time sequence, the UE that performs the positioning measurement according to the time when the RRC connection setup message reaches the base station until the percentage of the selected UE is equal to the effective percentage or the MDT task in the connected state is finished.
Several specific examples are provided below in connection with any of the above embodiments:
as shown in fig. 5, the present example provides a minimization of drive test system for reducing power consumption of a terminal, including:
EMS, used for configuring the MDT task parameter in connection state; the task parameters provide effective proportion and transition period of the acquired position information field in the connected MDT configuration information. The effective proportion is between 0 and 1, and can be set in any configuration or fixed according to experience. The transition period may be a fixed value configured by a communications carrier or set empirically, and may be in units of time measurement units such as milliseconds, seconds, minutes, and the like. The effective proportion parameter and the transition period are effective only when the fields including the position information and the acquired position information in the connection state MDT configuration information are effective at the same time.
And the eNB (evolved node B) is connected with the EMS and is used for receiving the connected MDT task parameters from the EMS, selecting part of the UEs to perform positioning measurement execution in the connected MDT task based on the effective proportion, and respectively generating corresponding connected MDT configuration information for the selected UEs and the unselected UEs according to the connected MDT task parameters so as to control the UEs to execute each task of the connected MDT task, such as the positioning measurement. In addition, the base station is also connected with the EPS.
The UE (for example, as shown in fig. 5, UE1, UE2, UE3, and UE4) can access the base station, and is configured to receive the connection MDT configuration parameters sent by the base station, and execute a connection MDT task based on the connection MDT configuration parameters, for example, determine whether to execute a positioning test and report location information.
Example 2:
this example provides a minimization of drive test method based on the minimization of drive test system provided in example 1, including:
the operator operation and maintenance personnel configure and activate the connected state (Immediate) MDT task through EMS (network management system).
When the acquisition location-r11 field is provided when the parameter of the Immediate MDT task is configured, the configuration option is added, for example, the configuration option may be checked or not checked, etc.
In this example, an obetainelocation-r 11 field effective rate (obetainelocation _ enable ratio) parameter and a transition period obetainelocation _ switch cycle parameter of an obetainelocation-r 11 field are added to the EMS (webmaster). The object location _ enable ratio parameter is used for indicating an effective ratio, and the effective ratio can be configured arbitrarily by an operator in a value range of 0-1 (0% -100%) or set as a fixed value according to experience.
The obetainelocation _ switch cycle parameter can be arbitrarily configured by the operator or set as a fixed value empirically, and can be in units of time measurement such as milliseconds, seconds, minutes, and the like. The obetainelocation _ enabledratio parameter and the obetainelocation _ SwitchCycle parameter are effective only when the simultaneous configuration including the location information (includeLocationInfo) field and the obetainelocation-r 11 field is effective.
The EMS directly transmits the Immediate MDT task number (or transmits the Immediate MDT task number through the EPC) to the eNB.
And the eNB selects N _ indicating _ EnableRation UEs from N UEs meeting the Immediate MDT task activation condition in each transition period according to the configured indicating _ EnableRation parameter and indicating _ SwitchCycle parameter based on a certain algorithm (such as a random algorithm or a polling algorithm), configures an indicating-r 11 field in a corresponding RRCConnectionReconfiguration message to be effective, and configures other UEs not to be effective.
And the UE executes corresponding measurement, activates or deactivates GNSS positioning and reports measurement information and position information to the eNB according to the Immediate MDT task configuration parameters issued by the eNB.
The above algorithm for selecting UE may adopt a random selection algorithm or a round robin algorithm, wherein an example of the random algorithm is as follows:
starting a timer from the moment when the current Immediate MDT task is activated in the eNB, randomly selecting N × uplink location _ EnableRation UEs from N UEs meeting the activation condition of the Immediate MDT task, configuring an uplink location-r11 field to be effective in a corresponding radio resource control connection reconfiguration (RRCConnectionReconfiguration) message, and configuring the uplink location-r11 field not to be effective by other UEs;
when the timer reaches the obetainelocationswitchcycle, the eNB timer is reset to zero and restarts timing, and the eNB randomly selects N 'obetainelocationEnableRation UEs from N' UEs meeting the Immediate MDT task activation condition again; and so on until the current immediatate MDT task ends.
The algorithm for selecting the UE may adopt a random selection algorithm or a polling algorithm, wherein an example of the polling algorithm is as follows:
starting a timer from the time when the current Immediate MDT task is activated by the eNB, selecting the first N (uplink location _ Enable) UEs from the N UEs meeting the activation condition of the Immediate MDT task according to the sequence that the corresponding radio resource connection reestablishment completion (RRCConnectionSetupCompute) message reaches the eNB, configuring an uplink location-r11 field in the corresponding RRCConnectionReconfiguration message to be effective, and configuring the uplink location-r11 field by other UEs not to be effective;
when the timer reaches the obedientlocation _ switch cycle, the eNB timer is reset to zero and restarts timing, the eNB selects the first N '. beta.obedientlockerablerate UEs according to the sequence that the corresponding RRCConnectionSetupComplete message reaches the eNB from the N' UEs currently meeting the imediate MDT task activation condition, only for the UEs that have not been selected before, configures obedientlocation-r 11 fields in the corresponding RRCConnectionReconfiguration (RRCConnectionReconfiguration) message to take effect, and configures obedientlocation-r 11 fields for other UEs not to take effect; and so on, polling once every obetainelocation _ switch cycle period;
when the eNB cannot select enough UEs from the remaining unselected UEs which currently accord with the Immediate MDT task activation condition in a certain polling period, emptying the identity register whether the UE is selected and starting from the step 1) again until the current Immediate MDT task is finished.
Example 3:
as shown in fig. 6, this example further provides a minimization of drive test method, including:
step S1: the eNB receives a connection state MDT activation command, and the command can carry connection state MDT task parameters;
step S2: the UE accesses a network;
step S3: judging the MDT starting condition, for example, judging whether there is UE meeting the aforementioned connected MDT task activation condition at present;
step S4: when UE meets the activation condition of the connected MDT task, selecting the UE which needs to execute positioning measurement in the connected MDT task and report position information obtained by the positioning measurement;
step S5: sending RRCConnectionReconfiguration carrying connection state MDT configuration information to UE;
step S6: receiving an RRCConnectionReconfiguration complete message returned by the UE;
step S7: and when the position information reporting condition is met, the UE reports a measurement report to the eNB, wherein the measurement report comprises the position information obtained by executing the positioning measurement.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
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, that is, may be located in one place, or may be distributed on a plurality of network units; some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, all the functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
Those of ordinary skill in the art will understand that: all or part of the steps for implementing the method embodiments may be implemented by hardware related to program instructions, and the program may be stored in a computer readable storage medium, and when executed, the program performs the steps including the method embodiments; and the aforementioned storage medium includes: a mobile storage device, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.
Claims (10)
1. A method for Minimization of Drive Tests (MDT) is applied to a base station and comprises the following steps:
selecting part of UE from User Equipment (UE) meeting the activation condition of a connection state MDT task to execute positioning measurement in the connection state MDT task and report position information obtained by the positioning measurement;
sending, to the selected UE, connected MDT configuration information indicating that the positioning measurement is to be performed;
the method further comprises the following steps:
obtaining the effective proportion of the acquired position information field;
selecting part of UE from the UE meeting the activation condition of the MDT task in the connection state to execute the positioning measurement in the MDT task in the connection state and report the position information obtained by the positioning measurement, wherein the method comprises the following steps:
selecting UE with the ratio equal to the effective ratio from the UE meeting the activation condition of the connected MDT task to execute the positioning measurement and the report of the position information;
the sending, to the selected UE, the connected MDT configuration information indicating that the positioning measurement is performed includes:
and sending the connection state MDT configuration information indicating that the field for acquiring the position information takes effect to the selected UE.
2. The method of claim 1,
the method further comprises the following steps:
sending, to the unselected UE, connected MDT configuration information indicating that the positioning measurement is not performed.
3. The method of claim 1,
the method further comprises the following steps:
acquiring a transition period of the acquired position information;
selecting the UE with the ratio equal to the effective ratio from the UEs meeting the activation condition of the connected MDT task to execute the positioning measurement and the report of the position information, wherein the method comprises the following steps:
and in the transition period, selecting the UE with the ratio equal to the effective ratio from the UEs meeting the activation condition of the connected MDT task to execute the positioning measurement and the reporting of the position information.
4. The method of claim 3,
in the transition period, selecting the UE whose percentage is equal to the effective percentage from the UEs meeting the activation condition of the connected MDT task to perform the positioning measurement and report the location information, including:
and in the transition period, randomly selecting the UE with the effective ratio equal to the effective ratio from the UE executing the MDT activation task in the connection state to execute the positioning measurement and the reporting of the position information.
5. The method of claim 3,
in the transition period, selecting the UE whose percentage is equal to the effective percentage from the UEs meeting the activation condition of the connected MDT task to perform the positioning measurement and report the location information, including:
and in the transition period, selecting the UE with the ratio equal to the effective ratio from the UE executing the MDT activation task in the connection state according to a polling algorithm to execute the positioning measurement and the reporting of the position information.
6. The method of claim 5,
the method further comprises the following steps:
receiving a Radio Resource Control (RRC) connection establishment connection message sent by the UE according with the MDT activation condition in the connection state;
in the transition period, selecting, according to a polling algorithm, the UE whose percentage is equal to the effective percentage from the UEs that execute the MDT activation task in the connected state to execute the positioning measurement and report the location information, where the selecting includes:
and in the transition period, according to the time when the RRC connection establishment message reaches the base station, sequentially selecting the UE with the ratio equal to the effective ratio according to the time sequence to execute the positioning measurement and the reporting of the position information.
7. The method of claim 6,
the method further comprises the following steps:
recording the selected UE performing the positioning measurement;
and when the number of the unselected UEs in the transition period is not enough to enable the proportion of the selected UEs to be larger than the effective proportion, clearing the record and selecting the UEs for executing the positioning measurement according to the time when the RRC connection establishment message reaches the base station according to the time sequence until the proportion of the selected UEs is equal to the effective proportion or the MDT task in the connection state is finished.
8. A base station, comprising:
the first transceiver can carry out information interaction with the user equipment;
a first processor, connected to the first transceiver, for implementing the minimization of drive tests method provided in any one of claims 1 to 7 through execution of a computer program.
9. A base station, comprising:
a computer program;
a second processor for implementing the minimization of drive tests method provided in any one of claims 1 to 7 by executing the computer program.
10. A computer storage medium storing a computer program capable of implementing the minimization of drive tests method provided in any one of claims 1 to 7 when executed.
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