A cgi measurement control method

Abstract

The application provides a CGI measurement control method, comprising the following steps: S1, judging whether the intelligent CGI measurement method is opened, if yes, executing step S2, otherwise executing step S10; S2, judging whether the measurement report with the measurement ID X received by the base station carries the adjacent area CGI information, if yes, executing step 3, otherwise executing step S9; S3, starting the measurement ID X intelligent CGI measurement timer SmartCGIMeasTimer_X by the base station, and then executing step S4; S4, informing the UE to continue the CGI measurement of the measurement ID X by the base station. The CGI measurement control method provided by the application effectively utilizes the potential capability of the UE which can successfully perform the CGI measurement after the T321 timeout. The method creates more opportunities for the UE to perform the CGI measurement, increases the probability of the base station obtaining the CGI information of the measured target cell, and solves the problem that the UE is busy and cannot complete the reception and decoding of the PBCCH, PDCCH or PDSCH channel of the measurement target cell.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of 5G wireless communication, and particularly relates to a CGI measurement control method. BACKGROUND

[0002] The base station further processes the MeasurementReport, for example, reissues other types of measurement, or performs a handover process when the best cell is found and the cell is a known neighbor of the base station serving cell.

[0003] The cell reported by the UE in the NR neighbor list of the MeasurementReport message is not a neighbor configured by the base station serving cell, that is, the cell does not exist in the neighbor list of the base station serving cell, and then the base station considers the cell as an unknown neighbor. If the base station has and starts the automatic neighbor relationship management function (ANR), the base station initiates the CGI measurement to inform the UE to further attempt to obtain the CGI (Cellular Global Identity, global cell identity) information of the cell, and then reports the CGI information of the measured target cell to the base station.

[0004] The result of the UE attempting to obtain the CGI information of a target NR cell has two types: success: the UE obtains the CGI information of the measurement target cell and reports it to the base station in the MeasurementReport message; failure: the UE does not obtain the CGI information, and the MeasurementReport message does not contain the CGI information of the measured target cell.

[0005] One of the reasons for the failure result may be that the UE does not successfully receive and decode the PBCCH channel of the measured target cell or the PDCCH channel indicating the SIB1 scheduling information or the PDSCH channel carrying the SIB1. For this failure reason, the processing method of the prior art is that the base station and the UE both stop the current CGI measurement, which is a single processing, lacks more consideration, and the attitude of the base station to obtain the CGI information of the measured target cell is not active enough and the efficiency is not high. SUMMARY

[0006] Therefore, the application aims to provide a CGI measurement control method, which effectively utilizes the potential ability of the UE to successfully perform CGI measurement after T321 timeout. The method creates more opportunities for the UE to perform CGI measurement, increases the probability of the base station obtaining the CGI information of the measured target cell, and solves the problem that the UE is busy and cannot complete the reception and decoding of the PBCCH, PDCCH or PDSCH channel of the measurement target cell.

[0007] To achieve the above object, the technical scheme of the present application is implemented as follows:

[0008] A CGI measurement control method, comprising the following steps:

[0009] S1, judging whether the intelligent CGI measurement method is opened, if yes, executing step S2, otherwise executing step S10;

[0010] S2, judging by the base station whether the measurement report received by the base station for measurement ID X does not carry the adjacent area CGI information, if yes, executing step 3, otherwise executing step S9;

[0011] S3, starting the measurement ID X intelligent CGI measurement timer SmartCGIMeasTimer_X by the base station, and then executing step S4;

[0012] S4, informing the UE by the base station to continue the CGI measurement for measurement ID X, and then executing step S5;

[0013] S5, judging by the base station whether the measurement report received by the base station for measurement ID X does not carry the adjacent area CGI information, if yes, executing step S6, otherwise executing step S8;

[0014] S6, judging by the base station whether the intelligent CGI measurement timer SmartCGIMeasTimer_X is expired, if yes, executing step S7, otherwise executing step S4;

[0015] S7, stopping the processing for measurement ID X by the base station;

[0016] S8, stopping the intelligent CGI measurement timer SmartCGIMeasTimer_X;

[0017] S9, normally processing, or adding the adjacent area, or initiating the handover;

[0018] S10, using the traditional technology, and not starting the intelligent CGI measurement method;

[0019] S11, ending all the processes.

[0020] Further, the function switch EnableSmartCGIMeas is defined, which takes the value of 0 or 1, when the EnableSmartCGIMeas is set as 1, it indicates that the CGI measurement control method is started, otherwise it indicates that the CGI measurement control method is closed, and the default value is 0.

[0021] Further, define CGI measurement additional time CGIMeasAddTime, which takes an integer value between 0 and N, the user can dynamically design the maximum value N according to their own needs, the default value is defined by the user, when EnableSmartCGIMeas is equal to 1, the base station uses the parameter to define the duration of the CGI measurement.

[0022] Further, define the CGI measurement control method timer SmartCGIMeasTimer, the unit is millisecond ms, the calculation formula is:

[0023] SmartCGIMeasTimer=T321*1000+reportAmount*reportInterval+CGIMeasAddTime*reportInterval(1)

[0024] Wherein,

[0025] reportAmount represents the number of measurement reports that the UE needs to report;

[0026] reportInterval represents the time interval between each measurement report;

[0027] When reportAmount is set to infinity, set EnableSmartCGIMeas to 0.

[0028] Further, the method of starting the CGI measurement control is:

[0029] First, set EnableSmartCGIMeas to 1;

[0030] Then, set the value of T321AddTime.

[0031] An electronic device, comprising a processor and a memory connected to the processor and used for storing executable instructions of the processor, and the processor is used to execute a CGI measurement control method.

[0032] A server, comprising at least one processor and a memory connected to the processor, the memory stores instructions executable by the at least one processor, and the instructions are executed by the processor to make the at least one processor execute a CGI measurement control method.

[0033] A computer readable storage medium, storing a computer program, the computer program is executed by a processor to realize a CGI measurement control method.

[0034] Compared with the prior art, the CGI measurement control method has the following advantages:

[0035] The CGI measurement control method provided by the present application effectively utilizes the potential ability of UE to successfully perform CGI measurement after T321 timeout. The method creates more opportunities for UE to perform CGI measurement, increases the probability of base station obtaining the measured target cell CGI information, and solves the problem that UE is too busy to receive and decode the PBCCH, PDCCH or PDSCH channel of the measurement target cell. BRIEF DESCRIPTION OF DRAWINGS

[0036] The accompanying drawings, which form a part of the present application, are intended to provide further understanding of the present application and are incorporated herein for explanation by way of illustration. The present application will be described with reference to the accompanying drawings in which:

[0037] Figure 1 The MeasConfig information element structure described in the embodiments of the present application is shown in the schematic diagram;

[0038] Figure 2 The MeasObjectNR information element structure described in the embodiments of the present application is shown in the schematic diagram;

[0039] Figure 3 The ReportConfigNR information element structure described in the embodiments of the present application is shown in the schematic diagram;

[0040] Figure 4 The T321 described in the embodiments of the present application is shown in the schematic diagram;

[0041] Figure 5 The MeasurementReport message structure described in the embodiments of the present application is shown in the schematic diagram;

[0042] Figure 6 The MeasResults information element structure described in the embodiments of the present application is shown in the schematic diagram;

[0043] Figure 7 The MeasResultNR information element structure described in the embodiments of the present application is shown in the schematic diagram;

[0044] Figure 8 The CGI measurement control method described in the embodiments of the present application is shown in the schematic diagram. DETAILED DESCRIPTION

[0045] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0046] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0047] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0049] 5G base stations can instruct UEs in RRC connected state to perform connected state measurements, including intra-frequency measurements, inter-frequency measurements, and inter-system measurements. The base station instructs the UE to perform measurements by sending an RRCReconfiguration message carrying the MeasConfig field. The MeasConfig field ( Figure 1 This includes the measurement object, measurement report configuration, and measurement ID. The measurement object is used to inform the UE which frequency points to measure and how to measure them. Figure 2 The measurement report configuration indicates how the UE generates and reports measurement reports. Figure 3 The measurement ID is used to index measurement objects and configure measurement reports.

[0050] Based on the above information, when the UE obtains the measurement results and meets the conditions for reporting the measurement report, the UE will send a MeasurementReport message. Figure 5 The MeasurementReport message is sent to the base station, carrying the measurement ID corresponding to this report, the cell information, and the neighboring cell information. Figure 6). Among them, the neighbor cell information is divided into NR cell list and EUTRA cell category, and each list can carry information of up to 8 cells.

[0051] T321 timer is used to control the above process Figure 4 ), and T321 is started when the UE receives the indication of the base station to measure the CGI, and T321 is stopped when the CGI information of the measured target cell is obtained Figure 7 ) during the running of T321. When T321 expires, the UE will send the MeasurementReport message to the base station without carrying the CGI information of the measured target cell.

[0052] The base station receives the MeasurementReport and further processes it, such as issuing other types of measurements again, or performing handover procedures when the best cell is found and the cell is a known neighbor of the base station serving cell, etc.

[0053] There is a case that the cell reported by the UE in the NR neighbor cell list of the MeasurementReport message is not the neighbor configured by the base station serving cell, i.e. the cell does not exist in the neighbor cell list of the base station serving cell, then the base station considers the cell as an unknown neighbor. If the base station has and starts the automatic neighbor relationship management function (ANR), then the base station will initiate the CGI measurement to inform the UE to further try to obtain the CGI (Cellular Global Identity, Global Cell Identity) information of the cell, and then report the CGI information of the measured target cell to the base station.

[0054] The results of the UE trying to obtain the CGI information of a certain target NR cell are as follows:

[0055] Success: the UE obtains the CGI information of the measured target cell and reports it to the base station in the MeasurementReport message.

[0056] Failure: the UE does not obtain the CGI information, and the MeasurementReport message does not contain the CGI information of the measured target cell.

[0057] One of the reasons for the failure result is that the UE does not successfully receive and decode the PBCCH channel of the measured target cell or the PDCCH channel indicating the SIB1 scheduling information or the PDSCH channel carrying the SIB1. For this reason of failure, the processing method of the prior art is that the base station and the UE both stop the current CGI measurement, which is a single processing and lacks more consideration, and the "attitude" of the base station to obtain the CGI information of the measured target cell is not active enough and the efficiency is not high.

[0058] In view of the above, the present application proposes a CGI measurement control method:

[0059] Through further analysis of the failure causes, the UE fails to successfully obtain the MIB of the measured target cell or obtains the MIB but fails to obtain the SIB1 according to the MIB indication, which may be caused by one of the following reasons:

[0060] Reason 1: The measured target cell is out of order, has power transmission but does not broadcast system messages;

[0061] Reason 2: The measured target cell is out of order, the PDCCH channel scheduling SIB1 is configured incorrectly, and the UE cannot correctly decode the PDCCH channel through the PDCCH-ConfigSIB1 information in the broadcast MIB message;

[0062] Reason 3: The measured target cell is working normally, but the UE is busy and cannot enter the inactive time of DRX (discontinuous reception), so it does not have enough time to receive and decode the PBCCH, PDCCH or PDSCH channel of the measured target cell, and finally the T321 times out and the UE fails to successfully obtain the CGI information of the measured target cell.

[0063] Reason 1 and Reason 2 are both caused by the failure of the base station to which the target cell belongs, and will not be described herein;

[0064] The CGI measurement control method proposed in the present application is very effective for the scenario of CGI acquisition failure caused by Reason 3. The strategy of the method is that when T321 times out for the first time, the base station will not stop the CGI measurement efforts of the base station itself when the UE stops the CGI measurement, and the base station will repeatedly issue the same CGI measurement to instruct the UE to continue the CGI measurement of the measured target cell (the measurement configuration is the same as the last time, and remains unchanged). The method creates more opportunities for the UE to do CGI measurement, increases the probability of the base station obtaining the CGI information of the measured target cell, and solves the problem that the UE is busy and cannot complete the reception and decoding of the PBCCH, PDCCH or PDSCH channel of the measured target cell. If the measured target cell meets the conditions to become a handover target cell, then obtaining the CGI of the target cell may mean that a handover can be successfully initiated, thereby better ensuring the quality of service and service continuity of the UE.

[0065] The specific design of the CGI measurement control method designed in the present application is as follows:

[0066] 1. Define a function switch EnableSmartCGIMeas, which takes the value 0 or 1. When EnableSmartCGIMeas is set to 1, it means that the CGI measurement control method proposed herein is started, otherwise it means that it is closed. The default value is 0.

[0067] 2. Define CGIMeasAddTime, which takes an integer value between {0, N}, the maximum value N can be dynamically designed by user according to their own needs, the default value is defined by the user. When EnableSmartCGIMeas is equal to 1, the base station uses this parameter to define the duration of a CGI measurement.

[0068] 3. Define the CGI measurement control method timer SmartCGIMeasTimer, unit ms, the calculation formula is:

[0069] SmartCGIMeasTimer = T321 x 1000 + reportAmount x reportInterval + CGIMeasAddTime x reportInterval Formula 1

[0070] Where,

[0071] reportAmount represents the number of measurement reports that the UE needs to report;

[0072] reportInterval represents the time interval between each measurement report.

[0073] When reportAmount is set to infinity, set EnableSmartCGIMeas to 0.

[0074] The method of starting a CGI measurement control method is:

[0075] First, set EnableSmartCGIMeas to 1.

[0076] Then, set the value of T321AddTime.

[0077] Software design reference for a CGI measurement method Figure 1 And Figure 2 .

[0078] Figure 8 The CGI measurement control method shown in the figure is described as follows:

[0079] Step 1: Determine whether the smart CGI measurement method is turned on, if so, execute step 2, otherwise execute step 10;

[0080] Step 2: The base station determines whether the measurement report received with measurement ID X carries neighbor CGI information, if so, execute step 3, otherwise execute step 9;

[0081] Step 3: The base station starts a smart CGI measurement timer SmartCGIMeasTimer_X for measurement ID X, and then performs step 4;

[0082] Step 4: The base station informs the UE to continue to perform CGI measurement for measurement ID X, and then performs step 5;

[0083] Step 5: The base station judges whether the measurement report received for measurement ID X carries neighbor CGI information, if not, step 6 is performed, otherwise, step 8 is performed;

[0084] Step 6: The base station judges whether the smart CGI measurement timer SmartCGIMeasTimer_X is expired, if yes, step 7 is performed, otherwise, step 4 is performed;

[0085] Step 7: The base station stops the processing for measurement ID X;

[0086] Step 8: The smart CGI measurement timer SmartCGIMeasTimer_X is stopped;

[0087] Step 9: Normal processing, or adding a neighbor, or initiating handover, etc. is performed;

[0088] Step 10: A traditional technique is used, and the smart CGI measurement method is not started;

[0089] Step 11: The whole process is ended.

[0090] The parameters of the present scheme involve the following table 1:

[0091]

[0092] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A CGI measurement control method, characterized by, The method comprises the following steps: S1, judging whether the intelligent CGI measurement method is opened, if yes, executing step S2, otherwise executing step S10; defining a function switch EnableSmartCGIMeas, which takes values of 0 or 1, when setting the EnableSmartCGIMeas as 1, judging that the intelligent CGI measurement control method is opened, otherwise indicating that it is closed, and the default value is 0; S2, judging by the base station whether the measurement report received by the base station for the measurement ID X does not carry the adjacent CGI information, if yes, executing step S3, otherwise executing step S9; S3, starting the intelligent CGI measurement timer SmartCGIMeasTimer_X for the measurement ID X by the base station, and then executing step S4; defining CGIMeasAddTime, which takes integer values between 0 and N, and the maximum value N is dynamically designed by the user according to the self demand, and the default value is defined by the user, when the EnableSmartCGIMeas is equal to 1, the base station uses the CGIMeasAddTime to define the CGI measurement control method timer SmartCGIMeasTimer; defining the CGI measurement control method timer SmartCGIMeasTimer, which is in units of milliseconds ms, and the calculation formula is: SmartCGIMeasTimer = T321x1000 + reportAmountxreportInterval + CGIMeasAddTimexreportInterval; wherein, T321 is the value of the T321 timer, reportAmount represents the number of measurement reports required to be reported by the UE; reportInterval represents the time interval between each measurement report; when the reportAmount is set to infinity, the EnableSmartCGIMeas is set to 0; the SmartCGIMeasTimer_X is obtained according to the calculation formula of the above SmartCGIMeasTimer; S4, the base station informs the UE to continue to make CGI measurement for the measurement ID X, and then executes step S5; S5, judging by the base station whether the measurement report received by the base station for the measurement ID X does not carry the adjacent CGI information, if yes, executing step S6, otherwise executing step S8; S6, judging by the base station whether the intelligent CGI measurement timer SmartCGIMeasTimer_X is expired, if yes, executing step S7, otherwise executing step S4; S7, stopping the processing for the measurement ID X by the base station; S8, stopping the intelligent CGI measurement timer SmartCGIMeasTimer_X; S9, normally processing; S10, not starting the intelligent CGI measurement method; S11, ending all processes.

2. An electronic device, comprising a processor and a memory connected to the processor in communication and configured to store instructions executable by the processor, the electronic device characterized by: The processor is used for executing the CGI measurement control method in claim 1. The processor is used for executing the CGI measurement control method in claim 1.

3. A server, characterized by: The application discloses a CGI measurement control method and device.

4. A computer readable storage medium storing a computer program, characterized in that: The computer program is executed by the processor to realize the CGI measurement control method in claim 1.

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