CN106937304B - Method and device for reporting log type MDT measurement result - Google Patents

Method and device for reporting log type MDT measurement result Download PDF

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CN106937304B
CN106937304B CN201511024717.0A CN201511024717A CN106937304B CN 106937304 B CN106937304 B CN 106937304B CN 201511024717 A CN201511024717 A CN 201511024717A CN 106937304 B CN106937304 B CN 106937304B
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information response
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response message
mdt measurement
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CN106937304A (en
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朱江
庄传平
曾东旭
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Nokia Shanghai Bell Co Ltd
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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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
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    • H04W24/10—Scheduling measurement reports ; Arrangements for measurement reports

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Abstract

The invention provides a method and a device for controlling UE to report MDT measurement results at a network node side and reporting logged MDT measurement results at the UE side. Wherein a method for reporting logged MDT measurements to a network node in a UE, comprises: receiving a UE information request message from the network node, the UE information request message including padding control information, the padding control information including at least one of: the maximum size of each UE information response message, the maximum measurement record number contained in each UE information response message and the filling mode of the UE information response message; according to the filling control information, filling the log type MDT measurement result into one or more pieces of UE information response information; and sending the UE information response message to the network node.

Description

Method and device for reporting log type MDT measurement result
Technical Field
The present invention relates generally to the field of wireless communications, and more particularly, to a method and apparatus for controlling UE reporting MDT measurement results on a network node side and reporting logged MDT measurement results on a UE side.
Background
In order to reduce the cost of network optimization and maintenance, the 3GPP starts to research Minimization of Drive Tests (MDT) technology from version R9, and its main idea is to obtain relevant parameters required for network optimization through a measurement report reported by User Equipment (UE) to replace the conventional Drive test technology.
The MDT types include logged MDT (logged MDT) and immediate MDT (immediate MDT). In logged MDT, the UE records measured data for a period of time before reporting (e.g., during an idle state) and reports the collected data to the base station through a UE information response message after establishing a Radio Resource Control (RRC) connection with the base station.
After introducing the logged MDT function, the size of the UE information response message may be very large. Currently, 3GPP does not define a specific way for the base station to control the UE to pad the message to report the MDT measurement result, so if the message is too large or the number of measurement records carried in the message is too many for the base station to handle, the base station may discard the whole message or a part of the message, which makes the logged MDT function not work well.
Too large a Signaling Radio Bearer (SRB) message may also affect other radio bearers for the UE or uplink scheduling of other UEs on the same cell, thereby affecting network performance.
Disclosure of Invention
In view of the above problems, the present invention provides a method and apparatus for controlling UE to report MDT measurement results at a network node side and reporting logged MDT measurement results at the UE side
According to an aspect of the present invention, there is provided a method for controlling UE reporting logged MDT measurement results in a network node, comprising: configuring a UE information request message for requesting the logged MDT measurement results from the UE, the UE information request message including padding control information, the padding control information including at least one of: the maximum size of each UE information response message, the maximum measurement record number contained in each UE information response message and the filling mode of the UE information response message; and transmitting the UE information request message to the UE.
According to another aspect of the present invention, there is provided a method in a UE for reporting logged MDT measurements to a network node, comprising: receiving a UE information request message from the network node, the UE information request message including padding control information, the padding control information including at least one of: the maximum size of each UE information response message, the maximum measurement record number contained in each UE information response message and the filling mode of the UE information response message; according to the filling control information, filling the log type MDT measurement result into one or more pieces of UE information response information; and sending the UE information response message to the network node.
According to another aspect of the present invention, there is provided an apparatus for controlling UE reporting logged MDT measurement results in a network node, comprising: a configuration unit configured to configure a UE information request message for requesting the logged MDT measurement result from the UE, the UE information request message including padding control information, the padding control information including at least one of: the maximum size of each UE information response message, the maximum measurement record number contained in each UE information response message and the filling mode of the UE information response message; and a transmitting unit, configured to transmit the UE information request message to the UE.
According to another aspect of the present invention, there is provided an apparatus for reporting logged MDT measurement results to a network node in a UE, comprising: a receiving unit, configured to receive a UE information request message from the network node, where the UE information request message includes padding control information, and the padding control information includes at least one of: the maximum size of each UE information response message, the maximum measurement record number contained in each UE information response message and the filling mode of the UE information response message; a filling unit, configured to fill the logged MDT measurement result in one or more UE information response messages according to the filling control information; and a sending unit, configured to send the UE information response message to the network node.
With the solution of the present invention, the network node can control how the UE fills the logged MDT measurement record into the UE information response message to meet the network needs, thereby avoiding the disadvantage of discarding all or part of the measurement results if the size of the measurement report exceeds the processing capability in the prior art.
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The present invention will be better understood and other objects, details, features and advantages thereof will become more apparent from the following description of specific embodiments of the invention given with reference to the accompanying drawings. In the drawings:
fig. 1 shows a flow chart of a method for controlling UE reporting logged MDT measurement results according to the present invention;
fig. 2 shows a flowchart of a method for populating logged MDT measurement results in a UE information response message according to the present invention;
fig. 3 shows a schematic diagram of an arrangement for controlling UE reporting logged MDT measurements in a network node according to the present invention;
fig. 4 shows a schematic diagram of an arrangement for reporting logged MDT measurements to a network node in a UE according to the present invention.
Detailed Description
Preferred embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. While the preferred embodiments of the present invention are shown in the drawings, it should be understood that the present invention may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.
The general flow of MDT measurement and reporting is as follows:
before the MDT measurement, the network node sends the MDT measurement configuration parameters to the selected ue through an RRC logging measurement configuration message, where the MDT measurement configuration parameters include, for example, a logging time interval (L logging interval), a logging duration (L logging duration), a Trace session identifier used by the MDT, a TCE identifier reported by the MDT measurement, and the like.
And when the UE meets the conditions (for example, enters an idle state), performing MDT measurement according to the MDT measurement configuration parameters sent by the network node and storing the measurement result.
When the network node knows that the MDT measurement result is stored in the UE, the MDT measurement result may be requested from the UE through a UE information request message at any time after the RRC connection is established with the UE.
And responding to the UE information request message, and the UE sends the MDT measurement result to the network node through the UE information response message.
When the logging duration is 120 minutes and the logging interval is 1280 milliseconds, the number of logs is as many as 120 minutes/1280 milliseconds (i.e., 120 x 60/1.28 ═ 5625). if each measurement contains 5 neighboring cells, each log is about 0.23 kbytes, so the total measurement can be very large, greater than 1000 kbytes.
Furthermore, from the point of view of the Packet Data Convergence Protocol (PDCP), each RRC message cannot exceed 8188 bytes, but 8 kbytes is still a very large number, and it is therefore desirable to provide a scheme that enables the base station to flexibly control the specific way the UE fills in the UE information response message.
Fig. 1 shows a flow chart of a method for controlling UE reporting logged MDT measurement results according to the present invention.
As shown in fig. 1, in step 10, the network node configures a UE information request message for requesting logged MDT measurements from the UE.
The UE information request message includes padding control information including at least one of: the maximum size of each UE information response message, the maximum measurement record number contained in each UE information response message and the filling mode of the UE information response message.
In addition, the maximum size for measurement records (or logged measurement items (cells "logMeasInfo L ist", e.g., logged measurement items after ASN1 encoding)) can also be indirectly controlled by subtracting the size of other cells than logMeasInfo L ist from the MessageMaxSize.
In the description of the present invention, the message maxsize is taken as an example to be included in the UE information request message, however, those skilled in the art can understand that the UE information request message may directly include logMeasInfo L ist as an information element.
The MessageMaxSize should not exceed the maximum size of the PDCP Service Data Unit (SDU) (8188 bytes in the current standard).
If the MessageMaxSize is not included in the UE information request message, the restriction is not considered.
In one implementation, the optional information element "logMeasReportMaxNumber" is used to control the maximum number of measurement records contained in each UE information response message (currently 3GPP limits this to a fixed value 520).
This restriction is not considered if logMeasReportMaxNumber is not included in the UE information request message.
In one implementation, an optional information element "logMeasReportMethod" is used to control the filling manner of the UE information response message.
Preferably, the value of "logMeasReportMethod" may be "Average" (Average) or "Best Effort" (Best Effort). This information element is used to control how the logged measurement records are filled in different RRC UE information response messages.
If the logMeasReportMethod is not included in the UE information request message, the UE may decide on its own how to fill in the message.
In some implementations, the network node includes an eNodeB in a long term evolution (L TE) network or a Radio Network Controller (RNC) in a Universal Mobile Telecommunications System (UMTS) network.
After configuring the UE information request message as described above, the network node transmits the UE information request message to the UE in step 20.
In one implementation, the network node sends the UE information request message via an RRC message. However, the present invention is not limited thereto, but may include any other transmission manner.
The UE receives a UE information request message from the network node, and in step 30, fills the logged MDT measurement results in one or more UE information response messages according to the filling control information in the UE information request message.
Next, in step 40, the UE sends a UE information response message to the network node.
In one implementation, the UE sends the UE information response message through an RRC message. However, the present invention is not limited thereto, but may include any other transmission manner.
Step 30 in fig. 1 is described in further detail below with reference to fig. 2. Fig. 2 shows a flowchart of a method for populating logged MDT measurement results in a UE information response message according to the present invention.
As shown in fig. 2, in step 210, a total size of logged MDT measurement results in the UE is calculated based on the number of logged MDT measurement records in the UE and the size of each logged MDT measurement record.
For example, assuming that the UE has 100 logged MDT measurement records, each record (after ASN1 encoding) is 0.2 kbyte, the total size of the logged MDT measurement result in the UE is: 100 x 0.2 k-20 kbyte.
Next, in step 220, the UE determines the number of UE information response messages required to fill the logged MDT measurement result based on the number of logged MDT measurement records in the UE and/or the total size of the logged MTD measurement results calculated in step 210 and the maximum size of each UE information response message included in the UE information request message and/or the maximum number of measurement records included in each UE information response message.
In one implementation, when the padding control information of the UE information request message includes the maximum size of each UE information response message but does not include the maximum number of measurement records included in each UE information response message, the number of UE information response messages required to pad the logged MDT measurement result is determined according to the total size of the logged MTD measurement results and the maximum size of each UE information response message.
For example, assuming that the total size of logged MDT measurement results in the UE is 20 kbytes, the MessageMaxSize is included in the UE information request message, and the value of logMeasReportMaxSize is deduced to be 8k (bytes), logMeasReportMaxNumber does not exist, the number of required UE information response messages may be calculated as
Figure BDA0000896607860000071
Wherein
Figure BDA0000896607860000072
Representing the ceiling operator.
In one implementation, when the padding control information of the UE information request message includes the maximum number of measurement records included in each UE information response message but does not include the maximum size of each UE information response message, the number of UE information response messages required to pad the logged MDT measurement result is determined based on the number of logged MDT measurement records in the UE and the maximum number of measurement records included in each UE information response message.
For example, assuming that the number of logged MDT measurement records in the UE is 100, and the UE information request message includes logMeasReportMaxNumber, which is 30 (assuming that no other optional information elements are included in the UE information response message), the number of required UE information response messages can be calculated as
Figure BDA0000896607860000073
Wherein
Figure BDA0000896607860000074
Representing the ceiling operator.
In a more preferred implementation of this implementation, the maximum size of the PDCP SDUs is also considered in determining the required UE information response message.
Specifically, the UE determines a first candidate number of UE information response messages required for filling the logged MDT measurement result based on the number of logged MDT measurement records in the UE and the maximum number of measurement records included in each UE information response message; determining a second candidate number of UE information response messages required by filling the log-type MDT measurement result according to the total size of the log-type MTD measurement result and the maximum size of the PDCP SDU; and determining the larger one of the first candidate number and the second candidate number as the number of the UE information response messages required to fill the logged MDT measurement result.
For example, assume that the UE has 100 logged MDT measurement records, and the total size of the logged MDT measurement results in the UE is 20 kbytes. If the UE information request message includes logMeasReportMaxNumber, which is 50 (assuming that the UE information response message does not include other optional information elements), the number of the required UE information response messages can be calculated as
Figure BDA0000896607860000075
If so, each UE information response message needs to contain 20/2-10 kbytes, and the maximum size of the pdcp sdu is 8 kbytes, which is not enough to contain 50 records. In this kind ofUnder the condition, the UE also calculates the number of the required UE information response messages into the number according to the total size of the log-typed MDT measurement result and the maximum size of the PDCP SDU
Figure BDA0000896607860000081
Then, the UE selects the larger value 3 of the number of messages calculated in the above two manners as the number of required UE information response messages.
In one implementation, when the padding control information in the UE information request message includes both the maximum measurement record number included in each UE information response message and the maximum size of each UE information response message, the UE determines, according to the total size of the logged MTD measurement results and the maximum size of each UE information response message, the third candidate number of UE information response messages required for padding the logged MDT measurement results; determining the fourth candidate number of the UE information response message required for filling the log MDT measurement result based on the number of log MDT measurement records in the UE and the maximum measurement record number contained in each UE information response message; and determining the larger one of the third candidate number and the fourth candidate number as the number of the UE information response messages required to fill the logged MDT measurement result.
For example, assume that the UE has 100 logged MDT measurement records, and the total size of the logged MDT measurement results in the UE is 20 kbytes. The UE information request message includes MessageMaxSize and deduces that the value of logMeasReportMaxSize is 6 kbytes, and includes logMeasReportMaxNumber, which is 40. The number of messages required for the UE to calculate based on the MessageMaxSize (logMeasReportMaxSize) is
Figure BDA0000896607860000082
The number of messages required for calculation based on logMeasReportMaxNumber is
Figure BDA0000896607860000083
Then, the UE selects the larger value 4 of the number of messages calculated in the above two manners as the number of the required UE information response messages.
Further, the method for filling the logged MDT measurement results in the UE information response message may further include step 230, in which the UE fills the logged MDT measurement results in one or more UE information response messages according to a filling manner of the UE information response message included in the UE information request message and the number of required UE information response messages.
Preferably, the padding mode of the UE information response message includes an average mode or a best effort mode.
In the averaging mode, the UE averagely distributes the logged MDT measurement records in the UE to each UE information response message according to the number of required UE information response messages.
In a best effort approach, the UE fills the next UE information response message after filling one UE information response message until all logged MDT measurement records are filled.
For example, if the logged MDT measurement records in the UE are 100, the total size of the logged MDT measurement results is 20 kbytes, the number of required UE information response messages is 4, and logMeasReportMaxSize is 6 kbytes, as described above. Then, in the average padding mode, the UE averagely allocates the logged MDT measurement results to 4 messages, each of which contains 20 k/4-5 kbytes, i.e., contains 5k/0.2 k-25 records. In the best effort padding mode, the first, second and third messages will comprise 6k bytes, corresponding to 6k/0.2 k-30 records, and the fourth message will contain the remaining records, i.e. 100-30 x 3-10 records, of size 10 x 0.2 k-2 k bytes.
The filling method described above in connection with fig. 2 is illustrated below by some examples.
For example, assume that the UE has 100 logged MDT measurement records, each record (after ASN1 encoding) is 0.2 kbyte.
Example 1: logMeasReportmethod is "average", logMeasReportMaxSize is 6 kbytes, logMeasReportMaxMexNuber is 40.
The UE first estimates the total measurement size: 100 x 0.2 k-20 k; then, based on "logMeasReportMaxSize", the number of messages containing them is calculated as
Figure BDA0000896607860000091
Based on the 'logMeasReportMaxNuber' to calculate the number of the messages containing the same as
Figure BDA0000896607860000092
These measurements can therefore be included at 4 (4)>3) Each message may contain 20 k/4-5 kbytes, which corresponds to 5k/0.2 k-25 records.
Example 2: logmeasreport method is "best effort", logmeasreport maxsize is 6 kbytes, logmeasreport maxnumber is 40.
The UE first estimates the total measurement size: 100 x 0.2 k-20 k; then, based on "logMeasReportMaxSize", the number of messages containing them is calculated as
Figure BDA0000896607860000093
Based on the 'logMeasReportMaxNuber' to calculate the number of the messages containing the same as
Figure BDA0000896607860000094
These measurements can therefore be included at 4 (4)>3) Of the messages, the first, second and third messages will comprise 6 kbytes, corresponding to 6k/0.2 k-30 records, and the fourth message will contain the remaining records, i.e. 100-30 x 3-10 records, of size 10 x 0.2 k-2 kbytes.
Example 3: the logMeasReportmethod is "average", logMeasReportMaxSize is 8 kbytes, and logMeasReportMaxNuber is 30.
The UE first estimates the total measurement size: 100 x 0.2 k-20 k; then, based on "logMeasReportMaxSize", the number of messages containing them is calculated as
Figure BDA0000896607860000101
Based on the 'logMeasReportMaxNuber' to calculate the number of the messages containing the same as
Figure BDA0000896607860000102
These measurements can therefore be included at 4 (4)>3) In a message, each message may contain20 k/4-5 kbytes, which corresponds to 5k/0.2 k-25 records.
Example 4: the logMeasReportmethod is "best effort", logMeasReportMaxSize is 8 kbytes, and logMeasReportMaxNumber is 30.
The UE first estimates the total measurement size: 100 x 0.2 k-20 k; then, based on "logMeasReportMaxSize", the number of messages containing them is calculated as
Figure BDA0000896607860000103
Based on the 'logMeasReportMaxNuber' to calculate the number of the messages containing the same as
Figure BDA0000896607860000104
These measurements can therefore be included at 4 (4)>3) Of the messages, the first, second and third will comprise 30 records, i.e. 30 x 0.2 k-6 kbytes, and the fourth will contain the remaining records, i.e. 100-30 x 3-10 records, of size 10 x 0.2 k-2 kbytes.
Example 5: logMeasReportmethod is "average", logMeasReportMaxSize is 8 kbytes, and logMeasReportMaxNumber is not present.
The UE first estimates the total measurement size: 100 x 0.2 k-20 k; then, based on "logMeasReportMaxSize", the number of messages containing them is calculated as
Figure BDA0000896607860000105
These measurements will therefore be contained in 3 messages, each of which may contain 20 k/3-6.6 kbytes, corresponding to 6.6k/0.2 k-33 records (where the third message will contain 34 records).
Example 6: logMeasReportMethod is "best effort", logMeasReportMaxSize is 8 kbytes, logMeasReportMaxNumber is not present.
The UE first estimates the total measurement size: 100 x 0.2 k-20 k; then, based on "logMeasReportMaxSize", the number of messages containing them is calculated as
Figure BDA0000896607860000111
Thus thisThese measurements can be included in 3 messages, the first and second messages will contain 8k bytes, corresponding to 8k/0.2 k-40 records, and the third message will contain the remaining records, i.e. 100-40 x 2-20 records, with a message size of 20 x 0.2 k-4 k bytes.
Example 7: logMeasReportMethod is "average", MessageMaxSize is not present, logMeasReportMaxNumber is 30 (assuming no other optional IEs in the UE information response message).
The UE first estimates the total measurement size: 100 x 0.2 k-20 k; then, based on "logMeasReportMaxSize", the number of messages containing them is calculated as
Figure BDA0000896607860000112
These measurements can therefore be included in 4 messages, each of which will contain 100/4-25 records, with a message size of 25 x 0.2 k-5 kbytes.
Example 8: logMeasReportMethod is "best effort", MessageMaxSize is not present, logMeasReportMaxNumber is 30 (assuming there are no other optional IEs in the UE information response message).
The UE first estimates the total measurement size: 100 x 0.2 k-20 k; then, based on "logMeasReportMaxSize", the number of messages containing them is calculated as
Figure BDA0000896607860000113
These measurements can thus be included in 4 messages, the first, second and third messages will contain 30 records, i.e. 30 x 0.2k 6k, the fourth message will contain the remaining records, i.e. 100-30 x 3-10 records, and the message size is 10 x 0.2k 2 k.
Example 9: logMeasReportMethod is "average", MessageMaxSize is not present, logMeasReportMaxNumber is 50 (assuming there are no other optional cells in the UE information response message).
The UE first estimates the total measurement size: 100 x 0.2 k-20 k; then, based on "logMeasReportMaxSize", the number of messages containing them is calculated as
Figure BDA0000896607860000114
But since the MaxPDCP SDU size is 8k,
Figure BDA0000896607860000115
these measurements will therefore be contained in 3 messages, each of which will contain 100/3-33 records, i.e. 33 x 0.2 k-6.6 kbytes (where the third message will contain 34 records, i.e. 34 x 0.2 k-6.8 kbytes).
Example 10: logMeasReportMethod is "best effort", MessageMaxSize is not present, logMeasReportMaxNumber is 50 (assuming there are no other optional cells in the UE information response message).
The UE first estimates the total measurement size: 100 x 0.2 k-20 k; then, based on "logMeasReportMaxSize", the number of messages containing them is calculated as
Figure BDA0000896607860000121
But since the MaxPDCP SDU size is 8 kbytes,
Figure BDA0000896607860000122
these measurements will therefore be contained in 3 messages, the first and second messages containing 40 records, i.e. 8k/0.2 k-40, and the third message containing the remaining records, i.e. 100-40 x 2-20 records, of size 20 x 0.2 k-4 kbytes.
Example 11: logMeasReportMethod is absent, MessageMaxSize may or may not be present, logMeasReportMaxNumber may or may not be present.
In this case, the UE may use its own algorithm to populate the measurement records. The message size after the padding is limited by the MessageMaxSize and/or logMeasReportMaxNumber, if any.
In the following, a brief description is made of the complete procedure of the operation of the UE side after the scheme of the present invention is implemented in the L TE system, which is an exemplary description made in conjunction with the existing information element (as the following steps 1-3) and the new information element added by the present invention (as the following step 4), and is not intended to limit the scope of the present invention.
When the UE receives a UE information request message from the eNodeB and needs to populate a UE information response message:
1> if there is logmeasreport req and if RP L MN is included in plmn-Identity L ist stored in Var L ogMeasReport:
2> if Var L ogMeasReport includes one or more logged measurement records, the logMeasReport in the UEInformationResponse message is set as follows:
3> includes absoluteTimeStamp and sets it to the value of absoluteTimeInfo in Var L ogMeasReport;
3> includes and sets the traceReference to the value of the traceReference in Var L ogMeasReport;
3> includes and sets the traceRecordingSessionRef to the value of the traceRecordingSessionRef in Var L ogMeasReport;
3> includes tce-Id and sets it to the value of tce-Id in Var L ogMeasReport;
3> includes logMeasInfo L ist and sets it to include one or more records from the Var L ogMeasReport starting with the first journaled record;
4> if logMeasReportMethod is present and its value is "average", then estimate the current total measurement size and divide them evenly into separate parts, with ASN1 encoding for each part no more than logMeasReportMaxSize (if MessageMaxSize is present) in size and no more than logMeasReportMaxNumber (if logMeasReportMaxNumber is present) in number of records;
4> otherwise, if there is a logMeasReportMethod and its value is "best effort", it is padded until the ASN1 coded size of the measurement reaches logMeasReportMaxSize (if MessageMaxSize exists) or the number of records reaches logMeasReportMaxNumber (if logMeasReportMaxNumber exists);
4> otherwise, padding is done with ANS1 encoding size not exceeding logMeasReportMaxSize (if MessageMaxSize is present) and number of records not exceeding logMeasReportMaxNumber (if logMeasReportMaxNumber is present).
Note that logMeasReportMaxSize is equal to MessageMaxSize minus the information elements in the RRC UE info response message other than logMeasInfo L ist.
Fig. 3 shows a schematic diagram of an arrangement 300 for controlling UE reporting logged MDT measurement results in a network node according to the present invention.
As shown in fig. 3, the apparatus 300 includes a configuration unit 310 for configuring a UE information request message for requesting logged MDT measurement results from a UE, the UE information request message including padding control information, the padding control information including at least one of: the maximum size of each UE information response message, the maximum measurement record number contained in each UE information response message and the filling mode of the UE information response message; and a transmitting unit 320 for transmitting the UE information request message to the UE.
In one implementation, the apparatus 300 further includes a receiving unit 330 configured to receive one or more UE information response messages from the UE, wherein the UE information response messages are populated by the UE according to the padding control information.
In one implementation, the sending unit 320 sends the UE information request message to the UE through an RRC message.
In one implementation, the network node comprises an eNodeB in an L TE network or an RNC in a UMTS network.
Fig. 4 shows a schematic diagram of an apparatus 400 for reporting logged MDT measurements to a network node in a UE according to the present invention.
As shown in fig. 4, the apparatus 400 comprises a receiving unit 410 for receiving a UE information request message from a network node, the UE information request message comprising padding control information, the padding control information comprising at least one of: the maximum size of each UE information response message, the maximum measurement record number contained in each UE information response message and the filling mode of the UE information response message; a filling unit 420, configured to fill the logged MDT measurement result in one or more UE information response messages according to the filling control information; and a sending unit 430, configured to send the UE information response message to the network node.
In one implementation, the filling unit 420 further includes: a total size calculation unit 422, configured to calculate a total size of logged MDT measurement results in the UE based on the number of logged MDT measurement records in the UE and the size of each logged MDT measurement record; and a message number calculation unit 424, configured to determine, based on the number of logged MDT measurement records in the UE and/or the total size of logged MTD measurement results, and the maximum size of each UE information response message and/or the maximum number of measurement records included in each UE information response message, the number of UE information response messages required to fill the logged MDT measurement results.
In one implementation, when the padding control information includes the maximum size of each UE information response message but does not include the maximum number of measurement records included in each UE information response message, the message number calculation unit 424 determines the number of UE information response messages required to pad the logged MDT measurement result according to the total size of the logged MTD measurement results and the maximum size of each UE information response message.
In one implementation, when the padding control information includes the maximum number of measurement records included in each UE information response message but does not include the maximum size of each UE information response message, the message number calculation unit 424 determines the number of UE information response messages required to pad the logged MDT measurement result based on the number of logged MDT measurement records in the UE and the maximum number of measurement records included in each UE information response message.
In a more preferred implementation, when the padding control information includes the maximum number of measurement records included in each UE information response message but does not include the maximum size of each UE information response message, the message number calculation unit 424 determines the first candidate number of UE information response messages required to pad the logged MDT measurement result based on the number of logged MDT measurement records in the UE and the maximum number of measurement records included in each UE information response message; determining a second candidate number of UE information response messages required by filling the log-type MDT measurement result according to the total size of the log-type MTD measurement result and the maximum size of the PDCP SDU; and determining the larger one of the first candidate number and the second candidate number as the number of the UE information response messages required to fill the logged MDT measurement result.
In one implementation, when the padding control information includes both the maximum measurement record number included in each UE information response message and the maximum size of each UE information response message, the message number calculation unit 424 determines the third candidate number of UE information response messages required for padding the logged MDT measurement result according to the total size of the logged MTD measurement result and the maximum size of each UE information response message; determining the fourth candidate number of the UE information response message required for filling the log MDT measurement result based on the number of log MDT measurement records in the UE and the maximum measurement record number contained in each UE information response message; and determining the larger one of the third candidate number and the fourth candidate number as the number of the UE information response messages required to fill the logged MDT measurement result.
In one implementation, the filling unit 420 is further configured to fill the logged MDT measurement results in one or more UE information response messages according to a filling manner of the UE information response messages included in the UE information request message and the number of the required UE information response messages.
In one implementation, the padding mode of the UE information response message includes an average mode or a best effort mode.
In one implementation, the network node comprises an eNodeB in an L TE network or an RNC in a UMTS network.
By using the scheme provided by the invention, the network node can control how the UE fills the log MDT measurement record into the UE information response message to meet the network requirement, thereby avoiding the defect that all or part of the measurement result is discarded if the size of the measurement report exceeds the processing capacity in the prior art.
In one or more exemplary designs, the functions described herein may be implemented in hardware, software, firmware, or any combination thereof.A computer readable medium includes computer storage media and communication media including any medium that facilitates transfer of a computer program from one place to another.
The various illustrative logical blocks, modules, and circuits described in connection with the disclosure may be implemented or performed with a general purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any combination thereof designed to perform the functions described herein. A general-purpose processor may be a microprocessor, but in the alternative, the processor may be any conventional processor, controller, microcontroller, or state machine. A processor may also be implemented as a combination of computing devices, e.g., a combination of a DSP and a microprocessor, a plurality of microprocessors, one or more microprocessors in conjunction with a DSP core, or any other such configuration.
Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the present invention. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the present invention is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (15)

1. A method for controlling UE reporting logged MDT measurements in a network node, comprising:
configuring a UE information request message for requesting the logged MDT measurement results from the UE, the UE information request message including padding control information, the padding control information including at least one of: the maximum size of each UE information response message and the maximum measurement record number contained in each UE information response message; wherein a maximum size for measurement logging is indirectly controlled by a maximum size of the per-UE information response message; the filling control information also comprises filling modes of UE information response messages, wherein the filling modes comprise an average mode or a best effort mode, in the average mode, the UE averagely distributes log-type MDT measurement records in the UE to each UE information response message according to the number of the required UE information response messages, and in the best effort mode, the UE fills the next UE information response message after filling one piece of UE information response message until all the log-type MDT measurement records are filled; and is
And sending the UE information request message to the UE.
2. The method of claim 1, further comprising:
receiving one or more UE information response messages from the UE, wherein the UE information response messages are populated by the UE according to the population control information.
3. The method of claim 1, wherein the UE information request message is transmitted to the UE through an RRC message.
4. The method of claim 1, wherein the network node comprises an eNodeB in a long term evolution (L TE) network or a Radio Network Controller (RNC) in a Universal Mobile Telecommunications System (UMTS) network.
5. A method for reporting logged MDT measurements to a network node in a UE, comprising:
receiving a UE information request message from the network node, the UE information request message including padding control information, the padding control information including at least one of: the maximum size of each UE information response message and the maximum measurement record number contained in each UE information response message; wherein a maximum size for measurement logging is indirectly controlled by a maximum size of the per-UE information response message; the filling control information also comprises filling modes of UE information response messages, wherein the filling modes comprise an average mode or a best effort mode, in the average mode, the UE averagely distributes log-type MDT measurement records in the UE to each UE information response message according to the number of the required UE information response messages, and in the best effort mode, the UE fills the next UE information response message after filling one piece of UE information response message until all the log-type MDT measurement records are filled;
according to the filling control information, filling the log type MDT measurement result into one or more pieces of UE information response information; and is
Sending the UE information response message to the network node;
wherein when the padding control information includes the maximum measurement record number included in each UE information response message but does not include the maximum size of each UE information response message, the number of UE information response messages required to pad the logged MDT measurement result is determined based on the number of logged MDT measurement records in the UE, the maximum measurement record number included in each UE information response message, and the maximum size of PDCP SDUs.
6. The method of claim 5, wherein padding the logged MDT measurement results in one or more UE information response messages according to the padding control information comprises:
calculating a total size of logged MDT measurement results in the UE based on the number of logged MDT measurement records in the UE and the size of each logged MDT measurement record;
determining the number of UE information response messages required for filling the logged MDT measurement result based on the number of logged MDT measurement records in the UE and/or the total size of the logged MTD measurement result and the maximum size of each UE information response message and/or the maximum number of measurement records contained in each UE information response message.
7. The method of claim 6, wherein determining the number of UE information response messages needed to populate the logged MDT measurement comprises:
and when the filling control information comprises the maximum size of each UE information response message but does not comprise the maximum measurement record number contained in each UE information response message, determining the number of the UE information response messages required for filling the logged MDT measurement result according to the total size of the logged MTD measurement result and the maximum size of each UE information response message.
8. The method of claim 5, wherein determining the number of UE information response messages required to fill the logged MDT measurement result based on the number of logged MDT measurement records in the UE, the maximum number of measurement records included in each UE information response message, and the maximum size of PDCP SDUs comprises:
determining a first candidate number of UE information response messages required for filling the logged MDT measurement result based on the number of logged MDT measurement records in the UE and the maximum number of measurement records contained in each UE information response message;
determining a second candidate number of UE information response messages required for filling the log-type MDT measurement result according to the total size of the log-type MTD measurement result and the maximum size of the PDCP SDU; and is
Determining a larger one of the first candidate number and the second candidate number as the number of UE information response messages required for filling the logged MDT measurement result.
9. The method of claim 6, wherein when the padding control information includes a maximum measurement record number included in each UE information response message and a maximum size of each UE information response message, determining the number of UE information response messages required to pad the logged MDT measurement result comprises:
determining a third candidate number of the UE information response messages required for filling the logged MDT measurement result according to the total size of the logged MTD measurement result and the maximum size of each UE information response message;
determining a fourth candidate number of UE information response messages required for filling the logged MDT measurement result based on the number of logged MDT measurement records in the UE and the maximum number of measurement records contained in each UE information response message; and is
Determining a larger one of the third candidate number and the fourth candidate number as the number of UE information response messages required for filling the logged MDT measurement result.
10. The method of claim 6, wherein padding the logged MDT measurement results in one or more UE information response messages according to the padding control information further comprises:
and filling the log MDT measurement result in one or more pieces of UE information response messages according to the filling mode of the UE information response messages included in the UE information request message and the number of the required UE information response messages.
11. The method of claim 5, wherein the network node comprises an eNodeB in a Long term evolution (L TE) network or a Radio Network Controller (RNC) in a Universal Mobile Telecommunications System (UMTS) network.
12. An apparatus for controlling UE reporting logged MDT measurements in a network node, comprising:
a configuration unit configured to configure a UE information request message for requesting the logged MDT measurement result from the UE, the UE information request message including padding control information, the padding control information including at least one of: the maximum size of each UE information response message and the maximum measurement record number contained in each UE information response message; wherein a maximum size for measurement logging is indirectly controlled by a maximum size of the per-UE information response message; the filling control information also comprises filling modes of UE information response messages, wherein the filling modes comprise an average mode or a best effort mode, in the average mode, the UE averagely distributes log-type MDT measurement records in the UE to each UE information response message according to the number of the required UE information response messages, and in the best effort mode, the UE fills the next UE information response message after filling one piece of UE information response message until all the log-type MDT measurement records are filled; and
and the sending unit is used for sending the UE information request message to the UE.
13. An apparatus for reporting logged MDT measurements to a network node in a UE, comprising:
a receiving unit, configured to receive a UE information request message from the network node, where the UE information request message includes padding control information, and the padding control information includes at least one of: the maximum size of each UE information response message and the maximum measurement record number contained in each UE information response message; wherein a maximum size for measurement logging is indirectly controlled by a maximum size of the per-UE information response message; the filling control information also comprises filling modes of UE information response messages, wherein the filling modes comprise an average mode or a best effort mode, in the average mode, the UE averagely distributes log-type MDT measurement records in the UE to each UE information response message according to the number of the required UE information response messages, and in the best effort mode, the UE fills the next UE information response message after filling one piece of UE information response message until all the log-type MDT measurement records are filled;
a filling unit, configured to fill the logged MDT measurement result in one or more UE information response messages according to the filling control information; and
a sending unit, configured to send the UE information response message to the network node;
wherein when the padding control information includes the maximum number of measurement records included in each UE information response message and does not include the maximum size of each UE information response message, the padding unit is further configured to: determining the number of UE information response messages required for filling the logged MDT measurement result based on the number of logged MDT measurement records in the UE, the maximum measurement record number contained in each UE information response message, and the maximum size of PDCP SDUs.
14. The apparatus of claim 13, wherein the fill cell further comprises:
a total size calculation unit for calculating a total size of logged MDT measurement results in the UE based on the number of logged MDT measurement records in the UE and the size of each logged MDT measurement record;
and a message number calculation unit, configured to determine, based on the number of logged MDT measurement records in the UE and/or the total size of the logged MTD measurement results, and the maximum size of each UE information response message and/or the maximum number of measurement records included in each UE information response message, the number of UE information response messages required to fill the logged MDT measurement results.
15. The apparatus of claim 13, wherein the fill cell is further to: and filling the log MDT measurement result in one or more pieces of UE information response messages according to the filling mode of the UE information response messages included in the UE information request message and the number of the required UE information response messages.
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