CN101931984B - Method, user equipment and base station for drive test measurement - Google Patents
Method, user equipment and base station for drive test measurement Download PDFInfo
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Abstract
The embodiment of the invention provides a method, user equipment and a base station for drive test measurement. The method comprises the following steps of: receiving the test information for the drive test transmitted by the base station through a control surface; performing the drive test measurement according to the received test information, and generating a drive test measurement report according to a measurement result; and sending the generated drive test measurement report to a network side. The base station transmits the test information, so that UEs which are positioned in a coverage area of a cell of the base station can be known in advance, and the base station can allocate same UEs to measure the problems of a certain cell of the base station so as to control the measurement process of the UE drive test through the base station; and the base station can select a corresponding UE to perform the drive test measurement based on the known information, such as UE capability; besides, the distributed control of the base station can be supported, so the UE drive test process is more flexible and the drive test efficiency is improved.
Description
Technical Field
The present invention relates to the field of communications, and in particular, to a method, a user equipment, and a base station for drive test measurement.
Background
At present, the traditional network optimization is generally performed based on drive test data, network data such as level, quality and the like are collected through a drive test instrument, then the data are analyzed to find network problems, and then network optimization is performed on problem areas.
In order to reduce the way of requiring a large amount of manual participation of a drive test instrument and to be able to collect data more effectively, Long Term Evolution (LTE) proposes to use common User Equipment (UE) to automatically report various parameters required for network optimization. When network problems occur, such as access failure, coverage hole entering or network capacity problem, the UE can automatically record related network parameters no matter the UE is in an online or offline state, and then report the network parameters to the network side.
In the prior art, an Operation, Maintenance and administration entity (OAM) issues measurement configuration of a drive test directly to a UE through a corresponding user plane protocol; and then after the UE carries out measurement, directly reporting the report of the measurement record to the OAM through the user plane at the specified time. The network parameters measured and recorded by the UE may include location information, time information, Cell identification (Cell ID) and Reference Signal Received Power (RSRP) of a serving Cell, Reference Signal Received Quality (RSRQ), and Cell ID and RSRP of neighbor cells, RSRQ, and other information. The drive test measurement in the above scheme is completely transparent to the base station (eNB, evolved Node B), and is configured and reported from the user plane, and the base station does not know the drive test measurement configuration issued by the OAM and the report content reported by the UE.
It can be seen from the above technical solutions that, since the UE directly receives the measurement configuration of the drive test from the OAM to perform the drive test measurement, there is no corresponding solution for recording when which measurement values are recorded and how to control, so that the drive test measurement process of the UE lacks flexibility.
Disclosure of Invention
The embodiment of the invention provides a method for measuring drive test, user equipment and a base station, wherein the measuring process of UE drive test is controlled by the base station, so that the UE drive test process is more flexible, and the drive test efficiency is improved.
The embodiment of the invention provides a method for drive test measurement, which comprises the following steps:
receiving a measurement message of the drive test issued by a base station through a control plane;
measuring according to the measurement message, and generating a drive test measurement report according to a measurement result;
and sending the drive test measurement report to a network side.
The embodiment of the invention also provides a method for measuring the drive test, which comprises the following steps:
a base station generates a measurement message of the user equipment drive test;
and the base station sends the measurement message to the user equipment through a control plane.
The embodiment of the invention also provides a method for measuring the drive test, which comprises the following steps:
a base station receives measurement configuration related to drive test issued by an operation maintenance management entity, or a drive test server, or an operation support system, or a self-organizing network server through a control plane;
and if the received measurement configuration comprises various information of the drive test measurement performed by the user equipment, the base station forwards the measurement configuration to the user equipment.
An embodiment of the present invention further provides a user equipment, including:
a measurement message receiving unit, configured to receive a measurement message of a drive test issued by a base station through a control plane;
a drive test measurement unit, configured to perform drive test measurement according to the received measurement message, and generate a drive test measurement report according to a measurement result;
and the measurement report reporting unit is used for sending the generated drive test measurement report to a network side.
An embodiment of the present invention further provides a base station, including:
a measurement message generation unit for generating a measurement message of a drive test of a user equipment;
and the measurement message issuing unit is used for issuing the measurement message to the user equipment through a control plane.
According to the technical scheme, firstly, the measurement message of the drive test issued by the base station through the control plane is received; then, performing drive test measurement according to the received measurement message, and generating a drive test measurement report according to the measurement result; and then the generated drive test measurement report is sent to the network side. Therefore, the base station issues the measurement message, which UEs are in the coverage area of the base station cell can be known in advance, and the base station can be configured with some UEs to measure the problems of a certain cell of the base station, so that the measurement process of UE drive test is controlled by the base station; and the base station can select corresponding UE to carry out drive test measurement based on the known information, such as UE capability; in addition, distributed control of the base station can be supported, so that the UE drive test process is more flexible, and the drive test efficiency is improved.
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Fig. 1 is a schematic flow chart of the method provided in this embodiment 1;
FIG. 2 is a schematic flow chart of the method provided in this embodiment 2;
FIG. 3 is a schematic flow chart of the method provided in this embodiment 3;
fig. 4 is a schematic signaling interaction diagram of the method provided in this embodiment 4;
fig. 5 is a schematic signaling interaction diagram of the method provided in this embodiment 5;
fig. 6 is a schematic signaling interaction diagram of the method provided in this embodiment 6;
fig. 7 is a schematic structural diagram of a ue provided in this embodiment 7;
fig. 8 is a schematic structural diagram of a base station provided in this embodiment 8.
Detailed Description
The embodiment of the invention provides a method for drive test measurement, user equipment and a base station. Firstly, a base station sends a measurement message of drive test to user equipment through a control plane; then the user equipment carries out drive test measurement according to the received measurement message and generates a drive test measurement report according to the measurement result; the ue sends the drive test measurement report to a network side, which may be, for example, a base station, or a drive test server or an operation maintenance management entity. Through the implementation of the technical scheme, the measurement process of the UE drive test can be controlled by the base station, so that the UE drive test process is more flexible.
Example 1: to better describe the embodiment of the present invention, an embodiment 1 of the present invention is now described with reference to fig. 1, and fig. 1 is a schematic flow chart of a drive test measurement method provided in the embodiment 1 of the present invention, where the method includes:
step 11: and receiving a measurement message of the drive test issued by the base station through the control plane.
In step 11, when the UE needs to perform the routing, a measurement message related to the routing measurement is received from the base station through the control plane.
The process of the base station issuing the measurement message related to the drive test to the user equipment by controlling the user equipment may be as follows: the base station issues the measurement message of the drive test through Radio Resource Control (RRC) signaling of the Control plane, for example, the measurement message of the drive test may be issued by adding corresponding information elements through extension of the RRC signaling.
Or sending a measurement message of the drive test through a paging message of the control plane, wherein the paging message is from a Mobility Management Entity (MME) or a paging controller; for example, the measurement message may be carried by an Information Element (IE) in the extended Paging message.
Or send a measurement message of the drive test through a broadcast message of the control plane, for example, define a new System Information Block (SIB) or carry the measurement message in an original Main Information Block (MIB) or SIB.
In addition, before the base station issues the measurement message of the drive test, if an operator needs to locate a network problem faced by one or a group of UEs, the drive test configuration may be issued to the base station where the user equipment is located by an Operation maintenance management entity, a drive test server, an Operation Support System (OSS) or a Self-organizing network (SON) server; the base station can receive the measurement configuration related to the drive test issued by an operation maintenance management entity or a drive test server or an operation support system or a self-organizing network server through a control plane signaling; and then the base station sends the measurement message of the drive test to the user equipment according to the measurement configuration.
The base station may also generate and send the drive test measurement message according to a requirement of a Radio Resource Management (RRM) algorithm or a SON algorithm of the base station.
The roadside measurement message includes measurement conditions, which may be set according to actual measurement requirements, and the measurement conditions include at least one of the following: measurement threshold, measurement indication, measurement time, measurement location, and the like, wherein:
a measurement threshold, configured to instruct the ue to perform a drive test measurement when a radio environment parameter reaches the measurement threshold, where the radio environment parameter may include RSRP, RSRQ, and a Received Signal Strength Indicator (RSSI); signal Power/noise Power density Ec/NO of Common Pilot Channel (CPICH), Received Signal Code Power (RSCP) of Common Pilot Channel (CPICH), and the like.
The measurement indication is used to instruct the ue to perform the drive test measurement when receiving the measurement indication, that is, to instruct the start and the end of the drive test measurement, for example, the measurement indication may be set to True to indicate the start of the drive test measurement, and the measurement indication may be set to False to indicate the end of the drive test measurement. The measurement indication may be provided in a simplified measurement message that may contain only 0/1, or TRUE/False, to indicate the start or stop of the measurement.
The measurement time is used for indicating the user equipment to perform drive test measurement in a time period specified by the measurement time, for example, the measurement time can be set as timing information, the measurement is performed if the measurement time is not overtime, and the measurement is stopped if the measurement time is overtime; or the measurement time may be set as specific time information, and measurement is started when the measurement is entered into the time range, and is stopped when the measurement is not entered into the time range.
The measurement location is used to instruct the ue to perform drive test measurement in a location area specified by the measurement location, for example, the measurement location may be set to be a location or a cell, a base station area, or a Tracking Area (TA), the ue performs drive test measurement when entering the location area, and stops measurement when not entering the location area.
In addition, a logging threshold may be further included in the measurement message, and the logging threshold is used to instruct the ue to log the set measurement value when the measurement parameter reaches the logging threshold. Therefore, the recording process is optimized, unnecessary information is reduced, the electric quantity of the UE is saved, and air interface resources are reduced. The measurement parameters related to the recording threshold may be: access failure times, transmission power values, switching failure times, cell reselection failure times, paging failure times, radio link failure times or radio environment thresholds and the like; the set measurement values may include measurement values associated with the measured parameter, and may also include measurement values of other measurement events.
In addition, the measurement message may further include a measurement event and/or a measurement value required to be recorded or reported in real time by the measurement event. Of course, it is also possible to include only measurement events, all or most of the measurements, the network and the terminal to measure by default; it may even be possible to exclude measurement events, measured by default by the network and the terminal. Here, the measurement event may specifically include at least one of the following:
coverage issues, random access, paging optimizations, handover events, latency issues, cell reselection optimizations, common channel optimizations, sending measurement reports, successfully configuring serving cell quality thresholds, receiving mobility reconfiguration, change in mobility speed, receiving handover commands, successfully/unsuccessfully accessing a target cell, radio link failure state transitions or timeouts, actions of layer three filtering in radio link failure, receiving a synchronization or non-synchronization identifier, transitioning between active and idle or Detached states (Detached), relocation, receiving relocation information, receiving idle state priority information, cell selection, camping or reselecting to a low priority cell, being in a state of selecting any cell.
Besides the above measurement events, when the user equipment UE is in Idle state Idle, at least one of the following measurement events may be measured:
inter-system cell reselection, inter-frequency or inter-system cell reselection to a low priority or high priority or same priority cell, a duration when the user equipment does not operate in a cell or system of a highest priority frequency layer, a quality threshold of a serving cell being lower than a certain threshold, a case of no service and camping, a camping time on one cell, a parameter report of the user equipment, a signal strength of a cell or system of a highest priority layer, and a moving speed of the user equipment.
When the measurement event occurs, the user equipment can be triggered to carry out corresponding drive test measurement; or when the measurement condition is met, corresponding drive test measurement is carried out aiming at the set measurement event. It should be noted that the measurement event may also be a logging event that triggers the UE to log the set measurement value.
Step 12: and performing drive test measurement according to the measurement message, and generating a drive test measurement report according to the measurement result.
In this step 12, after receiving the measurement message, the ue may perform a drive test measurement according to the received measurement message and generate a drive test measurement report. Specifically, the drive test measurement can be performed according to the measurement condition in the received measurement message, the required measurement value is recorded, and a drive test measurement report is generated according to the measurement result.
In addition, the user equipment may save the measurement message received in the active state or the idle state; and then, in an idle state, an activated state or an off-line state, performing drive test measurement according to the stored measurement message. The offline state includes situations where coverage problems, no service or residency are experienced.
Step 13: and sending the generated drive test measurement report to a network side.
In this step 13, after generating the drive test measurement report, the ue may send the generated drive test measurement report to the network side. The network side may be a base station, or may be an operation maintenance management entity, a drive test server, an operation support system, an ad hoc network server, or the like.
In a specific implementation process, the ue may send a drive test measurement report to the base station according to a reporting condition in the received measurement message. Here, the reporting condition may be set according to the requirement of the drive test, and specifically may be periodic reporting or event-triggered reporting.
A reporting period may be set, and the drive test measurement report is reported according to the reporting period; or setting an event to trigger reporting, and reporting the drive test measurement report when the set event is met.
For example, the set trigger event may be based on a wireless environment condition, such as a signal strength being greater than a set threshold; or when a certain number of measurements are collected at the end of the measurement; or when the UE enters or leaves the tracking area; or when the UE enters an active state, such as a location update; or when the network sends a message to make the UE report; or when the UE returns from another System, such as from the Universal Mobile Telecommunications System (UMTS) to LTE; or when the UE storage is exhausted. All the above can be used as events for triggering the reporting of the drive test measurement report.
The process of sending the drive test measurement report to the base station by the user equipment can report the drive test measurement report to the base station after tracking area update, location update, Attach (Attach) or network access; or may be reported through a signaling Radio Bearer 2(SRB2, signaling Radio Bearer 2), or a new signaling Radio Bearer 3 with a low priority (SRB3, signaling Radio Bearer 3), or may be reported through dedicated signaling.
In addition, if the base station receives the drive test measurement report generated by the user equipment, the base station can also directly forward the drive test measurement report to an operation maintenance management entity or a drive test server or an operation support system or an ad hoc network server; or the base station may evaluate and compress the received drive test measurement report, and send the compressed drive test measurement report to the operation maintenance management entity or the drive test server or the operation support system or the ad hoc network server. The above operation can effectively reduce the transmission overhead.
Through the implementation of the technical scheme of the embodiment 1, the measurement process of the UE drive test can be controlled by the base station, so that the UE drive test process is more flexible, and the drive test efficiency is improved.
Example 2: embodiment 2 of the present invention provides a method for drive test measurement, and as shown in fig. 2, is a schematic flow diagram of the method provided in embodiment 2, where the method includes:
step 21: a measurement message for a user equipment drive test is generated by a base station.
In this step 21, the base station may generate a measurement message for the ue to perform the drive test measurement according to the requirements of its RRM algorithm or SON algorithm.
Including measurement conditions in the measurement message, the measurement conditions specifically including at least one of:
and the measurement threshold is used for indicating the user equipment to carry out drive test measurement when the wireless environment parameter reaches the measurement threshold.
And the measurement instruction is used for instructing the user equipment to carry out drive test measurement when receiving the measurement instruction.
And the measurement time is used for indicating the user equipment to carry out drive test measurement in a time period specified by the measurement time.
And the measuring position is used for indicating the user equipment to carry out drive test measurement in the position area designated by the measuring position.
In addition, a recording threshold value may be further included in the measurement message, where the recording threshold value is used to instruct the ue to record the set measurement value when the measurement parameter reaches the recording threshold value. Therefore, the recording process is optimized, unnecessary information is reduced, the electric quantity of the UE is saved, and air interface resources are reduced.
In addition, the measurement message may further include a measurement event and/or a measurement value required to be recorded or reported in real time by the measurement event. Of course, it is also possible to include only measurement events, all or most of the measurements, the network and the terminal to measure by default; it may even be possible to exclude measurement events, measured by default by the network and the terminal. Here, the measurement event may specifically include at least one of the following:
coverage issues, random access, paging optimizations, handover events, latency issues, cell reselection optimizations, common channel optimizations, sending measurement reports, successfully configuring serving cell quality thresholds, receiving mobility reconfiguration, change in mobility speed, receiving handover commands, successfully/unsuccessfully accessing a target cell, radio link failure state transitions or timeouts, actions of layer three filtering in radio link failure, receiving a synchronization or non-synchronization identifier, transitioning between active and idle or Detached states (Detached), relocation, receiving relocation information, receiving idle state priority information, cell selection, camping or reselecting to a low priority cell, being in a state of selecting any cell.
Besides the above measurement events, when the user equipment UE is in Idle state Idle, at least one of the following measurement events may be measured:
inter-system cell reselection, inter-frequency or inter-system cell reselection to a low priority or high priority or same priority cell, a duration when the user equipment does not operate in a cell or system of a highest priority frequency layer, a quality threshold of a serving cell being lower than a certain threshold, a case of no service and camping, a camping time on one cell, a parameter report of the user equipment, a signal strength of a cell or system of a highest priority layer, and a moving speed of the user equipment.
In addition, before the base station generates the measurement message of the user equipment for the drive test, the base station can also receive the measurement configuration related to the drive test issued by the operation maintenance management entity or the drive test server or the operation support system or the self-organizing network server through the control plane; and then the base station generates a measurement message for the user equipment to carry out drive test according to the measurement configuration.
Step 22: and the base station sends the measurement message to the user equipment through a control plane.
In this step, the process that the base station sends the measurement message to the user equipment through the control plane may specifically be: transmitting, by a base station, the measurement message to the user equipment through radio resource control signaling of a control plane; or, the base station sends the measurement message to the user equipment through a paging message of a control plane; or, the base station sends the measurement message to the user equipment through a broadcast message of a control plane.
In addition, after the base station sends the measurement message to the ue through the control plane, the base station may further receive a drive test measurement report generated by the ue performing drive test measurement. In a specific implementation process, a reporting condition may be set in the measurement message, where the reporting condition includes: a reporting period, configured to instruct a user equipment to send a drive test measurement report according to the reporting period; or, the event triggered reporting condition is used for indicating the user equipment to send the drive test measurement report when the event triggered reporting condition is met.
In addition, after receiving the drive test measurement report generated by the user equipment performing the drive test measurement, the base station may also directly forward the drive test measurement report to the operation maintenance management entity or the drive test server or the operation support system or the ad hoc network server through the control plane.
Or, after receiving the drive test measurement report generated by the user equipment performing the drive test measurement, the base station evaluates and compresses the received drive test measurement report, and sends the compressed drive test measurement report to the operation maintenance management entity, the drive test server, the operation support system, or the self-organizing network server.
Similarly, by implementing the technical solution of the embodiment 2, the measurement process of the UE drive test can be controlled by the base station, so that the UE drive test process is more flexible, and the drive test efficiency is improved.
Example 3: embodiment 3 of the present invention provides another method for drive test measurement, and as shown in fig. 3, is a schematic flow chart of the method provided in embodiment 3, where the method includes:
step 31: a drive test related measurement configuration is received.
In step 31, the base station receives, through the control plane, measurement configuration related to the drive test issued by the operation maintenance management entity, the drive test server, the operation support system, or the self-organizing network server.
Step 32: and judging whether to forward the measurement configuration to the user equipment or not according to the content of the measurement configuration.
In this step 32, if the measurement configuration received by the base station includes various information for the ue to perform the drive test measurement, the base station may directly forward the measurement configuration to the ue; and carrying out subsequent drive test measurement operation by the user equipment according to the measurement configuration.
Similarly, by implementing the technical solution of the embodiment 3, the measurement process of the UE drive test can be controlled by the base station, so that the UE drive test process is more flexible, and the drive test efficiency is improved.
Example 4: in the following, a detailed description is given by taking a specific example, taking a drive test measurement process of a UE in an active state as an example, and fig. 4 is a schematic signaling interaction diagram of the method provided in this embodiment 4, where:
in step 42, the base station eNB sends a measurement message related to drive test to the user equipment UE through RRC signaling.
In step 43, the ue performs drive test measurement according to the measurement condition in the received measurement message, records the required measurement value, and generates a drive test measurement report.
The eNB may issue the threshold of the radio environment parameter in a newly defined drive test measurement Event, for example, Event a6 or Event B3; thresholds for the pathfinding measurements may also be added to existing events, such as Event a (including a1, a2, A3, a4, a5) and Event B (including B1, B2).
The measurement message may further include a real-time reporting identifier, which is used to determine whether to report the recorded measurement value in real time according to the real-time reporting identifier. For example, an identifier write to log is added to indicate that a drive test measurement value is only written into a record of user equipment and is not reported in real time; when no mark write to log exists, the real-time reporting of the drive test measurement value is represented; or adding a time mark for marking real-time reporting, when the time mark is zero, the real-time reporting is shown, and when the time mark is more than zero, reporting is carried out according to the time value period.
In a specific implementation process, the eNB may also carry a measurement value to be recorded by the user equipment in the delivered measurement message, where the measurement value to be recorded may be preset; the ue reports the measured values to the eNB after recording the measured values, which may specifically include one or more of the following:
1) position, measuring accurate positioning information. For example, the Positioning information calculated by observing an Arrival time Difference (OTDOA, unknown Difference of Arrival), Assisted Global Positioning System (AGPS), Global Positioning System (GPS), or the like may be rough Positioning information such as a cell identifier and a neighboring cell relationship. In addition, the user equipment can also report a positioning mode, positioning precision and UE speed; and the positioning estimation or the positioning auxiliary measurement data in the existing positioning mode can be reported.
2) Time, identifying the time at which an event occurred. The eNB can carry time information in the issued measurement message, and the UE reports the time information to the eNB again; the UE may also be required to generate time information and report the time information to the eNB.
3) And (4) recording or reporting the measured value in real time. The reference is mainly the range of RSRP, RSRQ, RSSI and the like or CPICH Ec/NO, CPICH RSCP and the like, or the threshold of the access failure times, the transmitting power, the switching failure times, the cell reselection failure times, the paging failure, the radio link failure times and the like.
4) A measurement event and all required measurement quantities for the measurement event. It may also include only measurement events, all or most of the measurements, to be measured by default by the network and the user equipment; it is not even necessary to include measurement events, as measured by default by the network and the user equipment. These measurements can be reported to the network in real time or recorded.
5) Radio environment parameters such as RSRP, RSRQ, RSSI, etc. or CPICH Ec/NO, CPICHRSCP, etc.
In a specific implementation process, the measurement event may specifically include at least one of the following:
coverage issues, such as when the UE enters an offline state, which may be experiencing radio link failure, the UE receives insufficient signal strength to support normal communications, and needs to record or report in real time: the resident priority is higher than the signal intensity, cell ID, serving cell signal intensity, cell ID, position and measurement time of all cells of the current serving cell.
Random access, if UE experiences random access failure, needs to be recorded or reported in real time: time, location, UE speed, UE transmit power, access type (contention/non-contention), eNB assigned C-RNTI, failure cause, number of RACH attempts, UE transmit power when RACH succeeds afterwards.
Paging optimization, if the UE cannot receive the paging message or can receive the paging message after multiple combining and decoding, it needs to record or report in real time: the UE receives the paging times.
Handover events, such as UE handover failure, too late handover, too early handover, handover to a wrong cell, etc., need to be recorded or reported in real time: source cell signal strength, cell ID, target cell signal strength, cell ID, time, location before and after handover failure.
Delay problems, such as long idle to active transition delay experienced by the UE, channel setup delay or handover delay needs to be recorded or reported in real time: idle-active transition delay, channel setup delay.
And (3) cell reselection optimization, if the UE fails to reselect and enters any cell selection state, recording or reporting in real time: reselection time, UE residence time, signal strength of a source cell and a target cell before and after reselection, and cell ID.
Common channel optimization, for example, if the UE cannot receive enough common channel signals, it needs to record or report in real time: cell search duration, search location, search time.
When camping or reselecting to a low-priority cell, generally, the UE selects a cell with a high-priority Evolved Universal Terrestrial Radio access network (E-UTRAN) frequency or an inter-system frequency or a high-level cell to camp on, if the UE receives a certain signal strength. When the event occurs when the UE reselects to a cell with a lower priority E-UTRAN frequency or a cell with a different system frequency or a lower-level cell, it may indicate that there is a coverage problem (e.g., coverage hole or weak coverage) in the cell with a higher frequency priority or a cell with a higher level, or that there is an RRM parameter configuration problem. At this time, recording or real-time reporting is required: the UE needs to measure radio environment parameters and cell identities of the camped cell and the cell or high-ranked cell with the high priority E-UTRAN frequency or inter-system frequency, frequency priority, cell rank such as cell reselection priority, frequency offset q-OffsetFreq, cell offset q-OffsetCell, time information (including this event duration and time stamp) and location information, etc.
When the UE performs cell search, for example, the UE experiences network coverage problems and cannot receive common channels, the UE can measure and record the conditions before successfully searching a certain cell, and the UE is convenient for the network to detect the coverage problems and the configuration problems of the common channels. At this time, recording or real-time reporting is required: cell identification, search time, time stamp, radio environment measurement, failure times, time information and location information, failure reason. In addition, if the UE cannot obtain the location information without the help of the network, the UE may measure the recorded location after successfully searching for the cell.
In the state of selecting any cell, recording or real-time reporting is needed: time information, location, radio environment parameters.
In addition to the above measurement events, events and/or handover events may be measured, which may be used for mobile optimization, and when a measurement event occurs, the UE may record or report, in real time, common measurement values related to the event, such as time, duration, UE location, radio environment parameters, event occurrence times, and the like. The measurement event specifically includes:
sending a measurement report through RRC signaling;
successfully configuring an S-measure threshold, wherein the S-measure is a quality threshold of a service cell in the prior art and is used for controlling whether the UE needs to measure;
receiving a mobility reconfiguration, such as a measurement configuration or a measurement interval configuration;
the moving speed is changed, and the method can be used for optimizing the network performance during high-speed movement;
receiving a switching command sent by a network through RRC signaling;
the target cell is accessed successfully/unsuccessfully, the triggering reasons such as switching commands, wireless link failure recovery and the non-access layer triggering the bottom layer to record can be recorded;
radio link failure state transition or radio link failure state timeout (after layer three filtering);
action of radio link failure layer three filtering: receiving a synchronization or non-synchronization identification (before layer three filtering);
switching between an active state and an idle state;
receiving relocation through RRC signaling;
receiving idle state priority information through RRC signaling;
and the cell reselection can record the frequency and system information of the target cell.
The measurement event may include part or all of the measurement event, and may be specifically set according to the drive test requirement.
In addition, when the routing server, the SON server, or the related algorithm is in the core network (such as OAM in the figure), and the operator needs to locate a network problem faced by one or a group of UEs, the routing configuration may be issued to the eNB where the UE is located, as shown in step 41 in fig. 4.
After the eNB collects the measurement report reported by the UE, the eNB may also evaluate and compress the received measurement report according to the reporting history (e.g., reporting times), the reporting content, and the reporting history of the eNB (i.e., the reported report), and then send the compressed drive test measurement report to the core network entity OAM for processing, for example, as shown in step 45 in fig. 4, so that the transmission overhead may be effectively reduced.
Similarly, by implementing the technical solution of the above embodiment 4, the measurement process of the UE drive test can also be controlled by the base station, so that the UE drive test process is more flexible, and the drive test efficiency is improved.
Example 5: this embodiment 5 is a process of drive test measurement of a UE in an idle state, for example, and fig. 5 is a schematic signaling interaction diagram of the method provided in this embodiment 5, where:
in steps 52 and 53, the eNB issues a measurement message to the UE in idle state through a Paging message. Wherein the Paging message may come from the MME or the Paging controller, for example, the measurement message may be carried by an IE in the Paging message, such as noncritical extension; the eNB may also send the measurement message through a broadcast message, for example, define a new SIB or carry it in an original MIB or SIB.
It is noted that, after receiving the measurement message, the UE performs the steps similar to those of the foregoing embodiment 4, except that in addition to the measurement events listed in the foregoing embodiment 4, in this embodiment 5, the UE may also perform measurement on at least one of the following measurement events:
reselecting the different system cell;
reselecting the pilot frequency cell;
the different frequency or different system cell reselects to the cell with low priority, high priority or the same priority;
a duration when the UE does not have a cell or system operating in the highest priority frequency layer;
the S-measure of the serving cell is below a certain threshold;
out-of-service and resident cases;
a dwell time on one cell;
when UE parameter reports;
a change in movement speed;
signal strength of the highest priority tier cell or system.
Similarly, when the measurement event occurs, the UE may record or report, in real time, common measurement values related to the event, such as measurement values of time, duration, UE location, radio environment parameters, event occurrence times, and the like.
Through the implementation of the technical scheme of the embodiment 5, the measurement process of the UE drive test can be controlled by the base station, so that the UE drive test process is more flexible, and the drive test efficiency is improved.
Example 6: embodiment 6 of the present invention simplifies the process of performing drive test measurement by the user equipment, and as shown in fig. 6, is a signaling interaction diagram of the method provided in embodiment 6, where:
in step 63, the eNB issues a simplified drive test measurement message to the UE through RRC signaling, where the measurement message includes drive test measurement indication information, such as True/False in steps 63 and 67 in fig. 6.
The eNB may send a measurement message and receive a drive test measurement report in a new RRC message, for example, a new drive test measurement message; the IE of drive test measurement may also be added to the existing RRC signaling. The existing RRC signaling may include the following messages:
RRC connection request, establishment, rejection, completion (RRC connection request/setup/request/complete);
RRC connection reconfiguration, reconfiguration completion, and re-establishment (RRC connection reconfiguration/complete/re-establishment);
request, rejection and completion of RRC connection reestablishment (RRC connection re-establishment request/complete);
RRC connection release (RRC connection release);
a mobility message;
a Measurement Report message (Measurement Report message), and the like.
In addition, the sent measurement message may carry an identifier indicating the start and end of measurement, where the carried identifier indicates the start of measurement, such as True; carry an indicator indicating the end of the measurement, such as False; timing information such as Timer can also be carried, the Timer does not measure when the Timer is overtime, and the measurement is stopped when the Timer is overtime; or carrying time information, entering the time range to start measurement, and not stopping measurement in the time range; or carrying location information, such as location area location, the terminal enters the location area to perform measurement, and does not stop measurement in the location area; or when the cell changes, the measurements are made according to the configuration of the new cell.
The measurement events of the drive test in this embodiment 6 may be the same as those in embodiments 4 and 5, or these measurement events may not be included in the measurement message, and the ue reports one or more measurement events to the network by default.
In the method, the eNB can be configured by issuing, such as RRM algorithm, and the flexible control of the drive test process can be realized without the participation of a core network entity.
Similarly, by implementing the technical solution of the above embodiment 6, the measurement process of the ue drive test can be controlled by the base station, so that the ue drive test process is more flexible, and the drive test efficiency is improved.
Example 7: embodiment 7 of the present invention provides a user equipment, which is a schematic structural diagram of the user equipment provided in this embodiment 7 as shown in fig. 7, and the user equipment includes a measurement message receiving unit 71, a drive test measurement unit 72, and a measurement report reporting unit 73, where:
the measurement message receiving unit 71 is configured to receive a measurement message of the drive test issued by the base station through the control plane. The specific way of receiving the measurement message is described in method embodiment 1 above.
The drive test measurement unit 72 is configured to perform drive test measurement according to the received measurement message, and generate a drive test measurement report according to the measurement result. The specific way in which drive test measurements are made is described above in method example 1.
The measurement report reporting unit 73 is configured to send the drive test measurement report to a network side.
In addition, the user equipment may further include a recording threshold setting unit 74, where the recording threshold setting unit 74 is configured to set one or more thresholds as conditions for recording the measurement value.
The drive test measuring unit 72 is further configured to record a required measurement value when the threshold set by the recording threshold setting unit 74 is reached.
For example, the threshold of the number of failed RACH access failures may be set to 3, and the UE records the required measurement value when more than 3 RACH failures are reached. When the RACH failure times are 1 or 2, the UE does not record the measurement. For example, the transmission power value may be set to be greater than 5dB, and the UE may record the required measurement value, and may not measure the required measurement value when the transmission power value is less than 5 dB. Similarly, other thresholds may be set, such as the number of handover failures, the number of cell reselection failures, the number of paging failures, the number of radio link failures RLF, or a radio environment threshold, which may be used as thresholds for recording the required measurement values.
Similarly, the UE in embodiment 7 can control the measurement process of the UE drive test through the base station, so that the UE drive test process is more flexible and the drive test efficiency is improved.
Example 8: embodiment 8 of the present invention provides a base station, as shown in fig. 8, which is a schematic structural diagram of the base station provided in this embodiment 8, and the base station includes a measurement message generating unit 81 and a measurement message issuing unit 82, where:
the measurement message generating unit 81 is configured to generate a measurement message for the ue drive test. The specific procedure for generating the measurement message is described in method embodiment 2 above.
The measurement message issuing unit 82 is configured to issue the measurement message to the ue through the control plane. The specific process of issuing the measurement message is described in method embodiment 2 above.
In addition, the measurement message generating unit 81 may further include one or more of the following units:
a measurement condition setting unit 811, where the measurement condition setting unit 811 is configured to set a measurement condition for the user equipment to perform the drive test in the measurement message. The measurement conditions specifically set are described in method example 1 above.
A measurement event setting unit 812, where the measurement event setting unit 812 is configured to set, in the measurement message, a measurement event that the ue needs to measure and/or a measurement value that the measurement event needs to record or report in real time. The specific measurement events set are described above in method example 1.
A reporting condition setting unit 813, where the reporting condition setting unit 813 is configured to set a reporting condition for the ue to report the measurement report in the measurement message. The specific reporting conditions are described in method embodiment 1 above.
In addition, the base station may further include a measurement configuration receiving unit 84, where the measurement configuration receiving unit 84 is configured to receive, through the control plane, a measurement configuration related to the drive test issued by the operation maintenance management entity, or the drive test server, or the operation support system, or the ad hoc network server.
The measurement message generating unit 81 further includes a measurement message generating sub-module 814, and the measurement message generating sub-module 814 is configured to generate a measurement message of a drive test of the user equipment according to the measurement configuration received by the measurement configuration receiving unit 84.
In addition, the base station may further include a measurement report receiving unit 83, where the measurement report receiving unit 83 is configured to receive a drive test measurement report generated by the user equipment performing drive test measurement.
The base station may further include a first measurement report processing unit 85 and/or a second measurement report processing unit 86, where:
the first measurement report processing unit 85 is configured to, after the measurement report receiving unit 83 receives the drive test measurement report sent by the user equipment, directly forward the drive test measurement report to the operation maintenance management entity, or the drive test server, or the operation support system, or the ad hoc network server through a control plane.
The second measurement report processing unit 86 is configured to, after the measurement report receiving unit 83 receives the drive test measurement report generated by the user equipment, evaluate and compress the received drive test measurement report, and send the compressed drive test measurement report to the operation maintenance management entity, or the drive test server, or the operation support system, or the ad hoc network server.
It should be noted that, in the embodiments of the user equipment and the base station, each included unit is only divided according to functional logic, but is not limited to the above division as long as the corresponding function can be implemented; in addition, specific names of the functional units are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present invention.
In addition, it is understood by those skilled in the art that all or part of the steps in the above method embodiments may be implemented by related hardware, and the corresponding program may be stored in a computer readable storage medium, where the above mentioned storage medium may be a read-only memory, a magnetic disk or an optical disk.
In summary, the embodiments of the present invention may issue the measurement message through the base station, and may know in advance which UEs are in the coverage area of the cell of the base station, and the base station may configure some UEs to measure the problem occurring in a certain cell of the base station, thereby implementing the measurement process of controlling the UE drive test through the base station; and the base station can select corresponding UE to carry out drive test measurement based on the known information, such as UE capability; in addition, distributed control of the base station can be supported, so that the UE drive test process is more flexible, and the drive test efficiency is improved.
The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the embodiments of the present invention are included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (18)
1. A method of drive test measurement, the method comprising:
receiving a measurement message of the drive test issued by a base station through a control plane;
measuring according to the measurement message, and generating a drive test measurement report according to a measurement result;
sending the drive test measurement report to a network side;
the receiving of the measurement message of the drive test issued by the base station through the control plane specifically includes:
receiving a measurement message of the drive test issued by a base station through a radio resource control signaling of a control plane; or, receiving a measurement message of the drive test issued by the base station through the paging message of the control plane; or receiving a measurement message of the drive test issued by the base station through the broadcast message of the control plane.
2. The method according to claim 1, wherein the measurement message comprises measurement conditions, and/or logging thresholds, and/or measurement events, and/or measurement values required to be logged or reported in real-time for a measurement event, wherein,
the recording threshold is used for indicating the user equipment to record the set measurement value when the measurement parameter reaches the recording threshold;
the measurement conditions specifically include at least one of:
a measurement threshold value, which is used for indicating the user equipment to carry out drive test measurement when the wireless environment parameter reaches the measurement threshold value;
the measurement instruction is used for instructing the user equipment to carry out drive test measurement when receiving the measurement instruction;
the measuring time is used for indicating the user equipment to carry out drive test measurement in a time period specified by the measuring time;
the measuring position is used for indicating the user equipment to carry out drive test measurement in a position area designated by the measuring position;
the measurement event comprises at least one of:
coverage issues, random access, paging optimizations, handover events, latency issues, cell reselection optimizations, common channel optimizations, sending measurement reports, successfully configuring serving cell quality thresholds, receiving mobility reconfiguration, change in mobility speed, receiving handover commands, successfully/unsuccessfully accessing a target cell, radio link failure state transitions or timeouts, actions of layer three filtering in radio link failure, receiving synchronous or asynchronous identification, transitioning between active and idle or detached states, relocating, receiving relocation information, receiving idle priority information, cell selection, camping or reselecting to a low priority cell, being in a select any cell state.
3. The method of claim 2, wherein when the measurement message includes a measurement event and the user equipment is in an idle state, the measurement event further includes at least one of:
inter-system cell reselection, inter-frequency or inter-system cell reselection to a low priority or high priority or same priority cell, a time duration when the user equipment does not operate in a cell or system of a highest priority frequency layer, a quality threshold of a serving cell being lower than a certain threshold, a case of no service and camping, a time of camping on one cell, a parameter report of the user equipment, a signal strength of a cell or system of a highest priority layer, and a moving speed change of the user equipment.
4. The method of claim 2,
when the measurement event includes a coverage problem, the measurement value that the coverage problem needs to be recorded or reported in real time at least includes one of the following: the resident priority is higher than the signal intensity of all the cells of the current service cell, the resident priority is higher than the cell identification ID of all the cells of the current service cell, the signal intensity of the service cell and the ID of the service cell;
when the measurement event includes random access, the measurement value to be recorded or reported in real time by the random access at least includes one of the following: UE speed, UE transmitting power, access type, cell wireless network temporary identification distributed by a base station, failure reason, access attempt times and transmitting power of the UE when the access is successful later;
when the measurement event comprises paging optimization, the measurement value required to be recorded or reported in real time by the paging optimization at least comprises one of the following values: the number of times the UE receives the page;
when the measurement event comprises a handover event, the measurement value required to be recorded or reported in real time by the handover event at least comprises one of the following values: signal strength of a source cell, a source cell ID, signal strength of a target cell, an ID of the target cell, time and position before and after handover failure;
when the measurement event includes a delay problem, the measurement value that needs to be recorded or reported in real time by the delay problem at least includes one of the following: idle-active transition delay, channel setup delay;
when the measurement event comprises cell reselection optimization, the measurement value required to be recorded or reported in real time by the cell reselection optimization at least comprises one of the following: reselection time, UE residence time, signal strength of a source cell before reselection and a target cell after reselection;
when the measurement event comprises common channel optimization, the measurement value required to be recorded or reported in real time by the common channel optimization at least comprises one of the following values: the cell search duration, the search position and the search time;
when the measurement event comprises the residence or the reselection to the low-priority cell, the measurement value needing to be recorded or reported in real time by the residence or the reselection to the low-priority cell at least comprises one of the following: the wireless environment parameters and cell identifiers of the resident cell and the cell or the high-level cell with the high-priority evolution universal terrestrial radio access network frequency or the different system frequency, the frequency priority, the cell level, the frequency deviation, the cell deviation, the time information and the position information;
when the measurement event comprises cell selection, the measurement value required to be recorded or reported in real time by the cell selection at least comprises one of the following values: search time, failure times, failure reason.
5. The method of claim 1, wherein the measurement message includes a reporting condition; and
the sending the drive test measurement report to the network side specifically includes:
sending the drive test measurement report to a network side according to the reporting period set in the reporting condition;
or, when the reporting condition is met, the drive test measurement report is sent to the network side.
6. A method of drive test measurement, the method comprising:
a base station generates a measurement message of the user equipment drive test;
the base station sends the measurement message to the user equipment through a control plane;
wherein, the sending, by the base station, the measurement message to the user equipment through a control plane specifically includes:
the base station sends the measurement message to the user equipment through a radio resource control signaling of a control plane; or, the base station sends the measurement message to the user equipment through a paging message of a control plane; or, the base station sends the measurement message to the user equipment through a broadcast message of a control plane.
7. The method according to claim 6, wherein the measurement message comprises measurement conditions, and/or logging thresholds, and/or measurement events, and/or measurement values required to be logged or reported in real time for a measurement event,
wherein,
the recording threshold is used for indicating the user equipment to record the set measurement value when the measurement parameter reaches the recording threshold;
the measurement conditions specifically include at least one of:
a measurement threshold value, which is used for indicating the user equipment to carry out drive test measurement when the wireless environment parameter reaches the measurement threshold value;
the measurement instruction is used for instructing the user equipment to carry out drive test measurement when receiving the measurement instruction;
the measuring time is used for indicating the user equipment to carry out drive test measurement in a time period specified by the measuring time;
the measuring position is used for indicating the user equipment to carry out drive test measurement in a position area designated by the measuring position;
the measurement event comprises at least one of:
coverage issues, random access, paging optimizations, handover events, latency issues, cell reselection optimizations, common channel optimizations, sending measurement reports, successfully configuring serving cell quality thresholds, receiving mobility reconfiguration, change in mobility speed, receiving handover commands, successfully/unsuccessfully accessing a target cell, radio link failure state transitions or timeouts, actions of layer three filtering in radio link failure, receiving synchronous or asynchronous identification, transitioning between active and idle or detached states, relocating, receiving relocation information, receiving idle priority information, cell selection, camping or reselecting to a low priority cell, being in a select any cell state.
8. The method of claim 7, wherein when the measurement message includes a measurement event and the user equipment is in an idle state, the measurement event further includes at least one of:
inter-system cell reselection, inter-frequency or inter-system cell reselection to a low priority or high priority or same priority cell, a time duration when the user equipment does not operate in a cell or system of a highest priority frequency layer, a quality threshold of a serving cell being lower than a certain threshold, a case of no service and camping, a time of camping on one cell, a parameter report of the user equipment, a signal strength of a cell or system of a highest priority layer, and a moving speed change of the user equipment.
9. The method of claim 6, wherein the measurement message includes a reporting condition, and wherein the reporting condition includes:
a reporting period, configured to instruct a user equipment to send a drive test measurement report according to the reporting period;
or, the event triggered reporting condition is used for indicating the user equipment to send the drive test measurement report when the event triggered reporting condition is met.
10. The method of claim 6, wherein prior to the base station generating the measurement message for the user equipment drive test, the method further comprises:
the base station receives measurement configuration related to the drive test issued by an operation maintenance management entity, or a drive test server, or an operation support system, or a self-organizing network server through a control plane; and
the generating, by the base station, a measurement message of a drive test of a user equipment specifically includes:
and the base station generates a measurement message of the drive test of the user equipment according to the received measurement configuration.
11. The method of claim 6, wherein after the base station sends the measurement message to the user equipment through a control plane, the method further comprises:
the base station receives a drive test measurement report generated by the user equipment for drive test measurement, and directly forwards the drive test measurement report to the operation maintenance management entity, or a drive test server, or an operation support system, or an ad hoc network server through a control plane;
or, the base station receives a drive test measurement report generated by the user equipment for drive test measurement, evaluates and compresses the received drive test measurement report, and sends the compressed drive test measurement report to the operation maintenance management entity, or the drive test server, or the operation support system, or the self-organizing network server.
12. A method of drive test measurement, the method comprising:
a base station receives measurement configuration related to drive test issued by an operation maintenance management entity, or a drive test server, or an operation support system, or a self-organizing network server through a control plane;
if the received measurement configuration includes various information for the ue to perform the drive test measurement, the base station forwards the measurement configuration to the ue, which specifically includes:
the base station sends the measurement configuration to the user equipment through radio resource control signaling of a control plane; or, the base station sends the measurement configuration to the user equipment through a paging message of a control plane; or, the base station sends the measurement configuration to the user equipment through a broadcast message of a control plane.
13. A user device, comprising:
a measurement message receiving unit, configured to receive a measurement message of a drive test issued by a base station through a control plane, specifically, receive a measurement message of a drive test issued by a base station through a radio resource control signaling of the control plane; or, receiving a measurement message of the drive test issued by the base station through the paging message of the control plane; or, receiving a measurement message of the drive test issued by the base station through a broadcast message of the control plane;
a drive test measurement unit, configured to perform drive test measurement according to the received measurement message, and generate a drive test measurement report according to a measurement result;
and the measurement report reporting unit is used for sending the generated drive test measurement report to a network side.
14. The user device of claim 13, wherein the user device further comprises:
a recording threshold setting unit for setting one or more thresholds as conditions for recording the measured values;
the drive test measuring unit is also used for recording the required measuring value when the threshold set by the recording threshold setting unit is reached.
15. A base station, comprising:
a measurement message generation unit for generating a measurement message of a drive test of a user equipment;
a measurement message issuing unit, configured to issue the measurement message to the ue through a control plane, and specifically, to send the measurement message to the ue through a radio resource control signaling of the control plane; or, sending the measurement message to the user equipment through a paging message of a control plane; or, the measurement message is sent to the user equipment through a broadcast message of a control plane.
16. The base station of claim 15, wherein the measurement message generating unit comprises one or more of:
a measurement condition setting unit, configured to set a measurement condition for the ue to perform a drive test in the measurement message;
a measurement event setting unit, configured to set, in the measurement message, a measurement event that the user equipment needs to measure and/or a measurement value that the measurement event needs to record or report in real time;
a reporting condition setting unit, configured to set, in the measurement message, a reporting condition for the ue to report the drive test measurement report.
17. The base station of claim 15 or 16, wherein the base station further comprises:
a measurement configuration receiving unit, configured to receive, through a control plane, measurement configuration related to drive test issued by an operation maintenance management entity, or a drive test server, or an operation support system, or an ad hoc network server;
the measurement message generating unit also comprises a measurement message generating submodule,
the measurement message generation submodule is configured to generate a measurement message of a drive test of the user equipment according to the measurement configuration received by the measurement configuration receiving unit.
18. The base station of claim 15, wherein the base station further comprises:
a measurement report receiving unit, configured to receive a drive test measurement report generated by the ue performing drive test measurement;
a first measurement report processing unit, configured to, after the measurement report receiving unit receives the drive test measurement report sent by the user equipment, directly forward the drive test measurement report to the operation maintenance management entity, or the drive test server, or the operation support system, or the ad hoc network server through a control plane; and/or
A second measurement report processing unit, configured to evaluate and compress the received drive test measurement report after the measurement report receiving unit receives the drive test measurement report sent by the user equipment, and send the compressed drive test measurement report to the operation maintenance management entity, or the drive test server, or the operation support system, or the ad hoc network server.
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| PCT/CN2010/073260 WO2010145427A1 (en) | 2009-06-18 | 2010-05-26 | Drive test measurement method, user equipment and base station |
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| WO2010145427A1 (en) | 2010-12-23 |
| CN101931984A (en) | 2010-12-29 |
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