Neighborhood planning method, device, equipment and computer program product

By collecting and filtering measurement reports from target cells and based on the A2 threshold for voice handover and segment division, the 4G neighboring cells of the NR FDD 700MHz cell are accurately planned. This solves the problems of inaccurate neighboring cell configuration and long handover delays, ensuring the success rate and latency of voice services.

CN118803811BActive Publication Date: 2025-09-30CHINA MOBILE GROUP DESIGN INST +1
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Patent Information

Application Number
CN202310947037.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2023-07-28
Publication Date
2025-09-30
Estimated Expiration
2043-07-28

AI Technical Summary

Technical Problem

The existing method of adding a different system 4G neighbor cell to the NR FDD 700MHz cell for voice services in the 5G long-distance coverage scenario has problems such as missed neighbor cells and inaccurate configuration. In addition, the traditional method may cause excessive handover or fallback delays.

Method used

By collecting the interoperability policy configuration parameter information of the target cell, setting the segment based on the voice handover A2 threshold and positive and negative offset, intercepting the sampling points in the measurement report, screening the neighboring cell information with appropriate reference signal received power, dividing the RSRP segment for inter-frequency statistics, and accurately planning the neighboring cells.

Benefits of technology

It achieves accurate addition of 4G neighbor cells for NR FDD 700MHz cells in 5G long-distance coverage scenarios, ensuring the success rate and latency of voice handover, and avoiding the handover or fallback delay problems caused by traditional methods.

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Abstract

The present application relates to the field of communications, and provides a method, apparatus, device, and computer program product for neighboring cell planning. The neighboring cell planning method includes: collecting configuration parameter information corresponding to the interoperability strategy of the target cell; intercepting sampling points in the measurement report of the target cell based on the configuration parameter information; and planning neighboring cells of the target cell based on the sampling points in the measurement report. The present application can accurately obtain neighboring cell information when the target cell signal becomes weak, ensuring the success rate and delay of voice switching; it can ensure the success rate and delay of the evolved packet system fallback within the target cell range, and obtain neighboring cells that are essential for voice service initiation and switching, avoiding the problem of affecting switching or fallback delay caused by the traditional method of adding all surrounding cells as heterogeneous system neighboring cells.
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Description

Technical Field

[0001] The present application relates to the field of communications, and specifically to a neighborhood planning method, apparatus, device, and computer program product. Background Art

[0002] Currently, there are three main methods for adding a non-system 4G neighbor cell in a 5G long-distance coverage NR (New Radio) FDD (Frequency Division Duplexing) 700MHz cell for voice services:

[0003] 1. Add heterogeneous 4G neighboring cells based on the base station's latitude and longitude on the electronic map. Considering that the coverage of the NRRFDD 700MHz cell exceeds that of the NR TDD (Time Division Duplexing) 2.6GHz cell, add another layer of 4G neighboring cells based on the heterogeneous 4G neighboring cells of the NR TDD 2.6GHz cell.

[0004] 2. Add the 5G cell to the drive test and manually judge the area where EPS (Evolved Packet System) fallback fails or voice handover fails in the drive test to check whether there are 5G cells with different system frequencies and unreasonable neighboring cells that cause 5G interoperability failures. Then determine that the 4G cell at this location is a different system 4G neighboring cell.

[0005] 3. Use the MR (Measurement Report) to enable inter-frequency testing of the NR FDD 700 MHz cell, configure all involved inter-system 4G frequencies, and then add all 4G cells counted in the MR measurement report as inter-system 4G neighboring cells of the NR FDD 700 MHz cell.

[0006] The above methods all have certain problems. The first two methods have problems with missed neighbor cells and inaccurate configuration. The third method requires adding too many 4G neighbor cells, which will affect the switching or fallback delay. Summary of the Invention

[0007] The embodiments of the present application provide a neighboring cell planning method, apparatus, equipment, and computer program product to solve the above-mentioned technical problems in the existing method of adding a different system 4G neighboring cell for voice services in 5G long-distance coverage scenarios.

[0008] In a first aspect, an embodiment of the present application provides a neighborhood planning method, including:

[0009] Collect configuration parameter information corresponding to the interoperability strategy of the target cell;

[0010] intercepting a sampling point in the measurement report of the target cell based on the configuration parameter information;

[0011] Planning neighboring cells of the target cell based on the sampling points in the measurement report.

[0012] In one embodiment, the configuration parameter information includes a first threshold value and a second threshold value, and intercepting a sampling point in the measurement report of the target cell based on the configuration parameter information includes:

[0013] Collecting a measurement report of the target cell within an offset section corresponding to the first threshold value, and filling the serving cell sampling points of the target cell into the offset section;

[0014] The sampling points carried in the measurement report are screened in the offset section, and the reference signal received power of the screened-out sampling points is less than the second threshold value.

[0015] In one embodiment, intercepting the sampling points in the measurement report of the target cell based on the configuration parameter information further includes:

[0016] Dividing a target segment based on the first threshold value and the measurement data interval in the measurement report;

[0017] Collecting measurement reports of the target cell within a target section, and filling the target section with serving cell sampling points of the target cell;

[0018] The sampling points carried in the measurement report are screened in the target section, and the reference signal received power of the screened-out sampling points is less than the second threshold value.

[0019] In one embodiment, planning the neighboring cells of the target cell based on the sampling points in the measurement report includes:

[0020] Filling the serving cell sampling point of the target cell to the offset section and extracting the neighboring cell information into the first set;

[0021] Filling the serving cell sampling points of the target cell into the target section, and adding the extracted neighboring cell information into a second set;

[0022] Add the neighboring cell information in the first set and the second set to the neighboring cell list of the target cell.

[0023] In one embodiment, the neighboring cell information includes a neighboring cell frequency and a neighboring cell identifier, and adding the neighboring cell information in the first set and the second set to the neighboring cell list of the target cell includes:

[0024] Eliminating duplicate cells in the union of the first set and the second set to obtain a target set;

[0025] When the interoperability strategy is a redirection mode, adding the neighboring cell frequencies in the target set to the neighboring cell list of the target cell;

[0026] When the interoperability strategy is a handover mode, the neighboring cell frequencies and neighboring cell identifiers in the target set are added to the neighboring cell list of the target cell.

[0027] In one embodiment, the interoperability strategy includes a fallback strategy and a handover strategy, and the neighborhood planning method further includes:

[0028] When the fallback strategy is a redirected fallback strategy, configuring a neighboring cell frequency on the target cell side;

[0029] When the fallback strategy is a switching fallback strategy, configuring a neighboring cell frequency and a neighboring cell identifier on the target cell side;

[0030] Determine a first threshold value and a second threshold value corresponding to the switching strategy.

[0031] In one embodiment, the neighborhood planning method further includes:

[0032] When the interoperability strategy is the handover strategy and the reference signal received power of the target cell is less than the first threshold value or greater than the second threshold value, a measurement report of the target cell is obtained.

[0033] In a second aspect, an embodiment of the present application provides a neighborhood planning device, including:

[0034] A configuration parameter information collection module is used to collect configuration parameter information corresponding to the interoperability policy of the target cell;

[0035] a measurement report interception module, configured to intercept a sampling point in the measurement report of the target cell based on the configuration parameter information;

[0036] A neighboring cell planning module is used to plan neighboring cells of the target cell based on the sampling points in the measurement report.

[0037] In a third aspect, an embodiment of the present application provides a device comprising a processor and a memory storing a computer program, wherein when the processor executes the computer program, the neighborhood planning method described in the first aspect is implemented.

[0038] In a fourth aspect, an embodiment of the present application provides a computer program product, including a computer program, which, when executed by a processor, implements the neighborhood planning method described in the first aspect.

[0039] The neighboring cell planning method, apparatus, equipment and computer program product provided in the embodiments of the present application can accurately obtain 4G neighboring cell information when the target cell signal becomes weak by using the segments set based on the voice switching A2 threshold value and the positive and negative offset, the collected target cell MR data and the 4G heterofrequency test results, thereby ensuring the success rate and delay of voice switching; using the A2 threshold based on voice switching and the A2 threshold based on data switching to divide the RSRP of the target cell into three segments, and extracting the heterofrequency MR statistics of the first two segments according to different proportions, the success rate and delay of EPS fallback within the target cell range can be guaranteed; by setting the target cell MR sampling point segment, the 4G neighboring cell that is essential for voice service call initiation and switching can be obtained, avoiding the problem of affecting switching or fallback delay caused by the traditional method of adding all surrounding 4G cells as heterosystem neighboring cells. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the present application or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0041] Figure 1 This is one of the flowcharts of the neighborhood planning method provided in the embodiment of the present application;

[0042] Figure 2 This is the second flow chart of the neighborhood planning method provided in the embodiment of the present application;

[0043] Figure 3 This is a schematic diagram of the structure of the neighboring area planning device provided in an embodiment of the present application;

[0044] Figure 4 It is a structural diagram of an electronic device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0045] To make the objectives, technical solutions, and advantages of this application more clear, the technical solutions in this application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0046] Before describing the embodiments of the present application, it is necessary to describe the basic concepts involved in the present application, specifically:

[0047] Currently, there are three ways for 5G to interoperate with 4G: idle state redirection, switching based on data services, and switching based on voice services.

[0048] The first is the idle state, where 5G terminals prioritize staying on the NR network. When NR coverage performance falls below a threshold, they reselect to the LTE (Long Term Evolution, 3GPP) network. The general parameter settings are: when NR RSRP < -112dBm and LTE RSRP > -108dBm, the UE (User Equipment) reselects to LTE.

[0049] The second is the connection state, which is the 5G to 4G handover based on the normal PS (Packet Switch) service, including:

[0050] Coverage-based handover: When NR coverage deteriorates and RSRP (Reference Signal Receiving Power) falls below a threshold, a handover from NR to LTE is initiated. The parameter setting is: when NR RSRP < -118dBm and LTE RSRP > -108dBm, a coverage-based handover to LTE is initiated;

[0051] Based on the uplink quality switching, the uplink quality of the 5G terminal deteriorates and falls below a threshold, initiating a handover from NR to LTE. The setting parameters can refer to NR SINR < 0dB or -3dB and can be adjusted according to actual conditions.

[0052] The third aspect is the connection state. For handover from 5G to 4G based on voice services, it is necessary to distinguish whether the 5G terminal supports VoNR. If the 5G terminal supports VoNR (Voice over NR, voice services carried on 5G), the VoNR service is directly initiated, and LTE is switched when coverage deteriorates. If the 5G terminal supports VoNR, when NR coverage is weak, the call is directly initiated and EPS is fallen back to LTE. If the 5G terminal does not support VoNR, when voice services are initiated, EPS falls back to LTE.

[0053] Connected voice service switching also includes two methods: coverage-based and uplink quality-based.

[0054] Coverage-based handover: When NR coverage deteriorates and RSRP falls below a threshold, a handover from NR to LTE is initiated, such as Figure 1 As shown in the figure, the parameter settings are: when NR RSRP < -105dBm and LTE RSRP > -108dBm, initiate coverage-based handover to LTE;

[0055] Uplink quality-based handover: When the uplink quality of a 5G terminal deteriorates and falls below a threshold, a handover from NR to LTE is initiated. For parameter settings, refer to NR VONR packet loss rate > 5% and LTE RSRP > -108dBm, a handover from NR to LTE is initiated based on uplink quality.

[0056] 4G and 5G networks are data-carrying networks. VoLTE (Voice over LTE, voice services carried on 4G) voice services are based on the IMS (IP Multimedia Subsystem) network. Different QCI (QoS Class Identifier, parameters used to identify the transmission characteristics of service data packets) levels are configured on the LTE network, allowing voice services to be transmitted as data streams on the LTE data-carrying network. Similarly, VoNR is also based on the IMS network. Different 5QI (5G QoS Identifier) ​​levels are configured on the NR network for transmission on the NR network.

[0057] For voice services, handover from NR to LTE needs to consider two methods: voice-based handover and EPS fallback.

[0058] 1. Voice-based switching

[0059] Coverage-based handover: When NR coverage deteriorates and RSRP falls below a threshold, a handover from NR to LTE is initiated. The general parameter setting is: when NR RSRP < -105dBm and LTE RSRP > -108dBm, a coverage-based handover to LTE is initiated.

[0060] Handover based on uplink quality: When the uplink quality of the 5G terminal deteriorates and falls below a threshold, a handover from NR to LTE is initiated. For parameter settings, refer to NR VONR packet loss rate > 5% and LTE RSRP > -108dBm, a handover based on uplink quality to LTE is initiated.

[0061] When 5G networks use NR TDD 2.6 GHz in a collaborative network with 4G and co-located base stations, NR TDD 2.6 GHz coverage falls short of LTE TDD 2.6 GHz / LTE FDD 1800 MHz. When 5G networks use NR FDD 700 MHz in a collaborative network with NR TDD 2.6 GHz and 4G and co-located base stations, NR FDD 700 MHz coverage exceeds LTE TDD 2.6 GHz / LTE FDD 1800 MHz.

[0062] 2. EPS decline

[0063] The characteristic of EPS is that 5G users can initiate voice services at any location in the 5G cell. In this case, EPS fallback needs to consider the 4G neighboring cells within the entire range of the 5G cell.

[0064] EPS fallback can be divided into two types: redirection-based and switch-based.

[0065] EPS fallback based on redirection: Only the LTE frequency needs to be configured on the NR cell side. After the terminal falls back to LTE, it needs to read the system message on the 4G side, establish an RRC (Radio Resource Control) connection, and then establish the VOLTE service. If there is data service before EPS FB (EPS Fallback, when 5G does not have VoNR conditions, the voice service falls back from 5G to 4G, relying on VoLTE to ensure the continuity of the voice service), it is also necessary to re-establish the bearer on the LTE side to restore the data service.

[0066] EPS fallback based on handover: LTE cells (including frequency and PCI (Physical Cell Identifier)) need to be configured on the NR cell side. The terminal's voice and data services are handed over to the LTE side together. The voice establishment delay and data service interruption delay are relatively short.

[0067] Reference Figure 1 , Figure 1 This is one of the flow charts of the neighboring area planning method in the embodiment of the present application. The neighboring area planning method provided in the embodiment of the present application may include:

[0068] Step 100: Collect configuration parameter information corresponding to the interoperability policy of the target cell;

[0069] Step 200: intercepting sampling points in the measurement report of the target cell based on the configuration parameter information;

[0070] Step 300: Planning neighboring cells of the target cell based on the sampling points in the measurement report.

[0071] Specifically, the implementation process of this application includes the following steps:

[0072] 1. Collect the 5G to 4G interoperability strategy of the NR FDD 700MHz cell (i.e., the target cell in this embodiment) and the configuration parameter information corresponding to the interoperability strategy;

[0073] 2. Based on the A2 and B1 thresholds for voice-based handover from NR (5G) to LTE (4G) collected in step 1, add positive and negative offsets to the A2 threshold to obtain a segment. Within this segment, collect MRs of the target cell, perform inter-frequency statistics on the MRs, and intercept MR data according to the B1 threshold.

[0074] 3. Divide the target cell's RSRP into three segments using the A2 threshold for voice handover and the A2 threshold for data handover. Extract the MRs of the three segments at different ratios, perform inter-frequency statistics on the MRs, and intercept the MR statistics using the B1 threshold.

[0075] 4. Add the LTE frequency points and PCIs extracted in step 2 to set S1, and add the LTE frequency points and PCIs extracted in step 3 to set S2, and take the union S1∪S2; according to the 5G to 4G interoperability strategy and configuration parameters in step 1, add a different system 4G neighbor cell to the target cell;

[0076] 5. Periodically collect inter-frequency MR statistics of the target cell, update the voice-based handover A2 threshold and the positive and negative offsets, and re-execute the above step 234.

[0077] This embodiment sets the segments based on the voice switching A2 threshold value and the positive and negative offsets, collects the target cell MR data and the 4G inter-frequency test results, and can accurately obtain the 4G neighboring cell information when the target cell signal becomes weak, thereby ensuring the success rate and delay of voice switching; using the A2 threshold based on voice switching and the A2 threshold based on data switching to divide the RSRP of the target cell into three segments, and extracting the inter-frequency MR statistics of the first two segments according to different proportions, it can ensure the success rate and delay of EPS fallback within the target cell range; by setting the target cell MR sampling point segment, it is possible to obtain the 4G neighboring cells that are essential for voice service call initiation and switching, avoiding the problem of affecting switching or fallback delay caused by the traditional method of adding all surrounding 4G cells as inter-system neighboring cells.

[0078] In one embodiment, the neighborhood planning method provided in the embodiment of the present application may further include:

[0079] Step 210: Collect measurement reports of the target cell within an offset section corresponding to the first threshold value, and fill the serving cell sampling points of the target cell into the offset section;

[0080] Step 220: Filter the sampling points carried in the measurement report in the offset section, and filter out the reference signal received power of the filtered sampling points to be less than the second threshold value.

[0081] Specifically, the details of step 2 above are as follows:

[0082] 1. According to the first threshold and second threshold for NR to LTE voice-based handover collected in step 1 above, a positive and negative offset is added to the first threshold to obtain the offset segment in this embodiment.

[0083] 2. Collect inter-frequency MR statistics of the target cell in the offset segment, use the serving cell RSRP value reported by 5G NR measurement, and fill the serving cell RSRP sampling points of the target cell into the offset segment.

[0084] 3. Configure 4G inter-frequency points for the target cell and enable inter-frequency measurement in the measurement report. Since the target cell is in a long-range coverage scenario, all surrounding 4G frequencies must be added. After configuring 4G inter-frequency points for the target cell, filter the measurement report for sampling points containing 4G frequencies in the offset section and extract the MR.LteNcRSRP and MR.LteNCEarfcn information. MR.LteNcRSRP reflects the reference signal received power of the defined 4G inter-frequency points received by the user equipment in the target cell; MR.LteNCEarfcn indicates the 4G frequency.

[0085] 4. In the offset section, filter the sampling points carrying the 4G frequency in the measurement report, intercept the MR statistical data according to the second threshold, and remove the sampling points where the MR.LteNcRSRP is lower than the second threshold.

[0086] This embodiment sets the segment based on the voice switching A2 threshold and the positive and negative offsets, collects the target cell MR data and 4G inter-frequency test results, and can accurately obtain the 4G neighboring cell information when the target cell signal becomes weak, thereby ensuring the success rate and delay of voice switching.

[0087] In one embodiment, the neighborhood planning method provided in the embodiment of the present application may further include:

[0088] Step 230: Divide and obtain a target segment based on the first threshold value and the measurement data interval in the measurement report;

[0089] Step 240: Collect measurement reports of the target cell within the target section, and fill the target section with serving cell sampling points of the target cell;

[0090] Step 250: Filter the sampling points carried in the measurement report in the target section, and filter out the reference signal received power of the filtered sampling points, which is less than the second threshold value.

[0091] Specifically, the details of step 3 are as follows:

[0092] Re-partition the section, and divide the RSRP value of the target cell into three segments using the A2 threshold based on voice handover and the A2 threshold based on data handover to obtain the target section in this embodiment. For example, [-105dBm < RSRP < -44dBm], [-118dBm < RSRP < -105dBm], [-140dBm < RSRP < -118dBm]. Extract the inter-frequency MR statistics of the three segments according to different ratios, and intercept the MR statistical data according to the second threshold value; fill the serving cell MR sampling points of the target cell into the above three target segments according to the RSRP level value, and filter the sampling points carrying the 4G frequency point in the MR measurement report, intercept the MR statistical data according to the second threshold value, and remove the sampling points with MR.LteNcRSRP lower than the second threshold value.

[0093] In this embodiment, the RSRP of the target cell is divided into three segments using the A2 threshold based on voice handover and the A2 threshold based on data handover, and the inter-frequency MR statistics of the first two segments are extracted according to different ratios, which can ensure the success rate and delay of EPS fallback within the target cell range.

[0094] Refer to Figure 2 , Figure 2 FIG. is the second flowchart of the neighbor cell planning method in the embodiment of the present application. In one embodiment, the neighbor cell planning method provided by the embodiment of the present application may further include:

[0095] Step 310, add the neighbor cell information extracted from the offset section filled with the serving cell sampling points of the target cell to the first set;

[0096] Step 320, add the neighbor cell information extracted from the target section filled with the serving cell sampling points of the target cell to the second set;

[0097] Step 330, add the neighbor cell information in the first set and the second set to the neighbor cell list of the target cell.

[0098] Specifically, the detailed content of step 4 above is as follows:

[0099] 1. Add the LTE frequency points and PCI information extracted after filling the MR sampling points of the target cell in step 2 above into the offset section to set S1, that is, the first set in this embodiment;

[0100] 2. Add the LTE frequency points and PCI information extracted in step 3 above to set S2, that is, the second set in this embodiment;

[0101] Add the LTE frequency points and PCI information extracted after filling the MR sampling points of the target cell into the first target section above to set S 2_1Since the first target segment above represents the near point of the target cell, we can consider selecting the set S 2_1 A certain proportion (e.g. 60%) of the total number of participants is added to the second set;

[0102] After filling the target cell MR sampling points to the second target segment, the extracted LTE frequency and PCI information are added to the set S 3_1 Since the second target segment represents the far point in the target cell, in order to ensure the success rate of EPS fallback and voice-based handover, it is possible to consider increasing the set S 3_1 The proportion (e.g. 90%) of the total number of cells is added to the second set;

[0103] After filling the target cell MR sampling points to the third target segment, the extracted LTE frequency and PCI information are added to the set S 4_1 Since the third target segment represents the far point of the target cell, in order to ensure the success of the voice service call, the EPS fallback adaptive strategy can be set. The third target segment is all set to initiate the voice service in EPS fallback mode. Select all sets S 4_1 With the addition of the second set, the above ratios can be adjusted according to actual conditions.

[0104] This embodiment sets the target cell MR sampling point segment to obtain 4G neighboring cells that are essential for voice service initiation and handover, thereby avoiding the problem of affecting handover or fallback delay caused by the traditional method of adding all surrounding 4G cells as heterogeneous system neighboring cells.

[0105] In one embodiment, the neighborhood planning method provided in the embodiment of the present application may further include:

[0106] Step 331: Eliminate duplicate cells in the union of the first set and the second set to obtain a target set;

[0107] Step 332: When the interoperability strategy is a redirection mode, add the neighboring cell frequencies in the target set to the neighboring cell list of the target cell;

[0108] Step 333: When the interoperability strategy is a handover mode, the neighboring cell frequencies and neighboring cell identifiers in the target set are added to the neighboring cell list of the target cell.

[0109] Specifically, the details of step 4 above also include:

[0110] 3. Take the union of the first set and the second set S1∪S2 and remove the duplicate 4G cells in the union;

[0111] 4. Verify the 5G to 4G interoperability strategy and configuration parameters in step 1, and add different system 4G neighbor cells to the target cell; if the EPS fallback mode of 5G to 4G interoperability is redirection, extract and concentrate the frequency of the 4G cell and add it to the 4G frequency list of the target cell; if the EPS fallback mode of 5G to 4G interoperability is switching, extract and concentrate the frequency and PCI information of the 4G cell and add the complete LTE cell information to the 4G neighbor cell list of the target area.

[0112] This embodiment sets the target cell MR sampling point segment to obtain 4G neighboring cells that are essential for voice service initiation and handover, thereby avoiding the problem of affecting handover or fallback delay caused by the traditional method of adding all surrounding 4G cells as heterogeneous system neighboring cells.

[0113] In one embodiment, the neighborhood planning method provided in the embodiment of the present application may further include:

[0114] Step 400: When the fallback strategy is a redirected fallback strategy, configure a neighboring cell frequency on the target cell side;

[0115] Step 500: When the fallback strategy is a switching fallback strategy, configure a neighboring cell frequency and a neighboring cell identifier on the target cell side;

[0116] Step 600: Determine a first threshold value and a second threshold value corresponding to the switching strategy.

[0117] The neighborhood planning method provided in the embodiment of the application may further include:

[0118] Step 700: When the interoperability strategy is the handover strategy and the reference signal received power of the target cell is less than the first threshold value or greater than the second threshold value, obtain a measurement report of the target cell.

[0119] Specifically, the details of step 1 are as follows:

[0120] 1. Collect 5G to 4G interoperability strategies between the target cell and the NR TDD 2.6GHz cell, including EPS fallback strategy, voice-based 5G to 4G handover strategy, and data-based 5G to 4G handover strategy.

[0121] 1.1. EPS fallback strategy: Redirection-based EPS fallback only requires configuration of LTE frequency on the NR cell side; handover-based EPS fallback requires configuration of LTE cell (including frequency and PCI) on the NR cell side;

[0122] 1.2. Voice-based 5G to 4G handover strategy: Usually, the A2+B1 strategy (A2 and B1 both correspond to RSRP values) is used.

[0123] 1.3. Data-based 5G to 4G handover strategy: Usually uses the A2+B1 strategy;

[0124] 2. Collect the configuration parameter information corresponding to the 5G to 4G interoperability strategy of the target cell.

[0125] 2.1. EPS decline does not involve parameter configuration;

[0126] 2.2. The voice-based 5G to 4G handover strategy usually uses the A2+B1 strategy;

[0127] Based on the covered inter-system handover A2 threshold (i.e., the first threshold in this embodiment), the reference configuration parameter value is -105dBm, that is, measurement is started when the NR cell RSRP value is lower than the A2 threshold;

[0128] Based on the covered handover B1 threshold (ie, the second threshold in this embodiment), the measurement is started when the reference configuration parameter value is -108 dBm, ie, the RSRP value of the LTE cell is higher than the B1 threshold.

[0129] 2.3. Data-based 5G to 4G handover strategy, usually using the A2+B1 strategy;

[0130] The A2 threshold for inter-system handover based on coverage is configured with a parameter value of -118dBm. That is, measurement is started when the RSRP value of the NR cell is lower than the A2 threshold;

[0131] The coverage-based handover B1 threshold is configured with a parameter value of -108dBm. That is, measurement is started when the LTE cell RSRP value is higher than the B1 threshold.

[0132] This embodiment targets long-distance coverage scenarios and voice services, and accurately plans reasonable heterogeneous 4G neighboring cells for the target cell based on segment measurement reports.

[0133] refer to Figure 3 , Figure 3 It is a structural diagram of the neighborhood planning device in the embodiment of the present application. The neighborhood planning device provided in the embodiment of the present application is described below. The neighborhood planning device described below and the neighborhood planning method described above can be referenced to each other.

[0134] Configuration parameter information collection module 301, used to collect configuration parameter information corresponding to the interoperability policy of the target cell;

[0135] A measurement report interception module 302, configured to intercept a sampling point in the measurement report of the target cell based on the configuration parameter information;

[0136] The neighboring cell planning module 303 is configured to plan neighboring cells of the target cell based on the sampling points in the measurement report.

[0137] Optionally, the configuration parameter information includes a first threshold value and a second threshold value, and the measurement report interception module includes:

[0138] a measurement report collecting unit, configured to collect a measurement report of the target cell within an offset section corresponding to the first threshold value, and fill the serving cell sampling point of the target cell into the offset section;

[0139] The first sampling point screening unit is configured to screen the sampling points carried in the measurement report in the offset section, wherein the reference signal received power of the screened-out sampling points is less than the second threshold value.

[0140] Optionally, the measurement report interception module further includes:

[0141] a target segment division unit, configured to divide the target segment based on the first threshold value and the measurement data interval in the measurement report;

[0142] a sampling point filling unit, configured to collect measurement reports of the target cell within a target section, and fill the target section with serving cell sampling points of the target cell;

[0143] The second sampling point screening unit is configured to screen the sampling points carried in the measurement report in the target section, where the reference signal received power of the screened-out sampling points is less than the second threshold value.

[0144] Optionally, the neighborhood planning module includes:

[0145] A first set adding unit, configured to fill the serving cell sampling point of the target cell to the neighboring cell information extracted from the offset section and add it to the first set;

[0146] A second set adding unit, configured to fill the serving cell sampling point of the target cell into the neighboring cell information extracted from the target section and add it to the second set;

[0147] A neighbor information adding unit is used to add the neighbor information in the first set and the second set to the neighbor list of the target cell.

[0148] Optionally, the neighboring cell information includes a neighboring cell frequency and a neighboring cell identifier, and the neighboring cell information adding unit includes:

[0149] a duplicate cell elimination unit, configured to eliminate duplicate cells in the union of the first set and the second set to obtain a target set;

[0150] a neighboring cell frequency adding unit, configured to add the neighboring cell frequencies in the target set to the neighboring cell list of the target cell when the interoperability strategy is a redirection mode;

[0151] The neighboring cell frequency point and neighboring cell identifier adding unit is configured to add the neighboring cell frequency points and neighboring cell identifiers in the target set to the neighboring cell list of the target cell when the interoperability strategy is a switching mode.

[0152] Optionally, the interoperability strategy includes a fallback strategy and a switching strategy, and the neighboring cell planning device further includes:

[0153] A neighboring cell frequency configuration module, configured to configure a neighboring cell frequency on the target cell side when the fallback strategy is a redirected fallback strategy;

[0154] A neighboring cell frequency and neighboring cell identifier configuration module, configured to configure the neighboring cell frequency and neighboring cell identifier on the target cell side when the fallback strategy is a switching fallback strategy;

[0155] The threshold value determination module is used to determine the first threshold value and the second threshold value corresponding to the switching strategy.

[0156] Optionally, the neighboring area planning device further includes:

[0157] The measurement report acquisition module is configured to acquire the measurement report of the target cell when the interoperability strategy is the handover strategy and the reference signal received power of the target cell is less than the first threshold value or greater than the second threshold value.

[0158] Figure 4 The following is an example of a physical structure diagram of a device, such as Figure 4 As shown, the device may include: a processor 410, a communication interface 420, a memory 430, and a communication bus 440, wherein the processor 410, the communication interface 420, and the memory 430 communicate with each other via the communication bus 440. The processor 410 may call a computer program in the memory 430 to execute the steps of the neighborhood planning method.

[0159] In addition, the logic instructions in the above-mentioned memory 430 can be implemented in the form of a software functional unit and can be stored in a computer-readable storage medium when sold or used as an independent product. Based on this understanding, the technical solution of the present application, or the part that contributes to the prior art or the part of the technical solution, can be embodied in the form of a software product, which is stored in a storage medium and includes several instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute all or part of the steps of the method described in each embodiment of the present application. The aforementioned storage medium includes: various media that can store program codes, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk.

[0160] On the other hand, an embodiment of the present application also provides a computer program product, which includes a computer program. The computer program can be stored on a non-transitory computer-readable storage medium. When the computer program is executed by a processor, the computer can execute the steps of the neighborhood planning method provided in the above embodiments.

[0161] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate, and the components shown as units may or may not be physical units, i.e., they may be located in one location or distributed across multiple network units. Some or all of the modules may be selected based on actual needs to achieve the objectives of the present embodiment. Persons of ordinary skill in the art will be able to understand and implement the present invention without inventive effort.

[0162] Through the description of the above embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus the necessary general hardware platform, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solution is essentially or the part that contributes to the existing technology can be embodied in the form of a software product. The computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, a disk, an optical disk, etc., and includes a number of instructions for enabling a computer device (which can be a personal computer, a server, or a network device, etc.) to execute the neighborhood planning method described in each embodiment or certain parts of the embodiment.

[0163] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A neighborhood planning method, characterized in that: include: Collect configuration parameter information corresponding to the interoperability strategy of the target cell; The configuration parameter information includes a first threshold value and a second threshold value; intercepting a sampling point in the measurement report of the target cell based on the configuration parameter information; Planning neighboring cells of the target cell based on the sampling points in the measurement report; The intercepting the sampling points in the measurement report of the target cell based on the configuration parameter information includes: Collecting a measurement report of the target cell within an offset section corresponding to the first threshold value, and filling the serving cell sampling points of the target cell into the offset section; screening the sampling points carried in the measurement report in the offset section, where the reference signal received power of the screened-out sampling points is less than the second threshold value; The intercepting the sampling points in the measurement report of the target cell based on the configuration parameter information further includes: Dividing a target section based on the first threshold value and the measurement data interval in the measurement report; Collecting measurement reports of the target cell within a target section, and filling the target section with serving cell sampling points of the target cell; The sampling points carried in the measurement report are screened in the target section, and the reference signal received power of the screened-out sampling points is less than the second threshold value.

2. The neighborhood planning method according to claim 1, characterized in that: The planning of the neighboring cells of the target cell based on the sampling points in the measurement report includes: Filling the serving cell sampling point of the target cell to the offset section and extracting the neighboring cell information into the first set; Filling the target cell's serving cell sampling points into the target section, and adding the extracted neighboring cell information into a second set; Add the neighboring cell information in the first set and the second set to the neighboring cell list of the target cell.

3. The neighborhood planning method according to claim 2, characterized in that: The neighboring cell information includes a neighboring cell frequency and a neighboring cell identifier, and the adding the neighboring cell information in the first set and the second set to the neighboring cell list of the target cell includes: Eliminating duplicate cells in the union of the first set and the second set to obtain a target set; When the interoperability strategy is a redirection mode, adding the neighboring cell frequencies in the target set to the neighboring cell list of the target cell; When the interoperability strategy is a handover mode, the neighboring cell frequencies and neighboring cell identifiers in the target set are added to the neighboring cell list of the target cell.

4. The neighborhood planning method according to claim 1, wherein: The interoperability strategy includes a fallback strategy and a switching strategy, and the neighboring cell planning method further includes: When the fallback strategy is a redirected fallback strategy, configuring a neighboring cell frequency on the target cell side; When the fallback strategy is a switching fallback strategy, configuring a neighboring cell frequency and a neighboring cell identifier on the target cell side; Determine a first threshold value and a second threshold value corresponding to the switching strategy.

5. The neighborhood planning method according to claim 4, characterized in that: The neighborhood planning method further includes: When the interoperability strategy is the handover strategy and the reference signal received power of the target cell is less than the first threshold value or greater than the second threshold value, a measurement report of the target cell is obtained.

6. A neighborhood planning device, characterized in that: include: A configuration parameter information collection module is used to collect configuration parameter information corresponding to the interoperability policy of the target cell; The configuration parameter information includes a first threshold value and a second threshold value; a measurement report interception module, configured to intercept a sampling point in the measurement report of the target cell based on the configuration parameter information; A neighboring cell planning module, configured to plan neighboring cells of the target cell based on the sampling points in the measurement report; The measurement report interception module includes: a measurement report collecting unit, configured to collect a measurement report of the target cell within an offset section corresponding to the first threshold value, and fill the serving cell sampling point of the target cell into the offset section; a first sampling point screening unit, configured to screen the sampling points carried in the measurement report in the offset section, wherein the reference signal received power of the screened-out sampling points is less than the second threshold value; The measurement report interception module further includes: a target segment division unit, configured to divide the target segment based on the first threshold value and the measurement data interval in the measurement report; a sampling point filling unit, configured to collect measurement reports of the target cell within a target section, and fill the target section with serving cell sampling points of the target cell; The second sampling point screening unit is configured to screen the sampling points carried in the measurement report in the target section, where the reference signal received power of the screened-out sampling points is less than the second threshold value.

7. An electronic device comprising a processor and a memory storing a computer program, characterized in that: When the processor executes the computer program, the neighborhood planning method according to any one of claims 1 to 5 is implemented.

8. A computer program product comprising a computer program, characterized in that When the computer program is executed by a processor, the neighborhood planning method according to any one of claims 1 to 5 is implemented.

Citation Information

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