Blind configuration method, apparatus, device, and storage medium for secondary carriers in carrier aggregation

Abstract

This application provides a blind configuration method, apparatus, device, and storage medium for secondary carriers in carrier aggregation, applicable to the field of communications. The method includes: obtaining the signal quality of the serving cell configured for the terminal, and the signal quality of neighboring cells sharing the same frequency with the serving cell; identifying co-located cells sharing a site with the target cells, with each cell in the serving cell and neighboring cells designated as a target cell; wherein the frequency of the co-located cells is lower than that of the target cells; obtaining the signal quality of the co-located cells based on the signal quality of the target cells; and determining the secondary carriers for the terminal based on the signal quality of each co-located cell. This method ensures the signal quality of the secondary carriers configured for the terminal, guaranteeing that carrier aggregation technology can effectively improve data transmission rates and reduce latency.

Description

Technical Field

[0001] This application relates to the field of communications, and more particularly to a blind configuration method, apparatus, device, and storage medium for secondary carriers in carrier aggregation. Background Technology

[0002] Carrier aggregation (CA) is a wireless communication technology used to increase data transmission rate and spectral efficiency. It allows terminals to use multiple physical carriers (including one primary carrier and several secondary carriers) simultaneously for data transmission.

[0003] In existing carrier aggregation technologies, there are generally two methods for configuring secondary carriers: one is measurement-based secondary carrier configuration, and the other is blind configuration. Blind configuration means that the configuration scheme for secondary carriers is pre-set during the cell planning stage. When it is necessary to configure a secondary carrier for a terminal, a pre-set cell is selected as the terminal's secondary carrier according to the set blind configuration scheme.

[0004] The existing blind configuration method for secondary carriers cannot guarantee the signal quality of the selected secondary carriers because the secondary carriers are preset. This may result in poor signal quality of the secondary carriers after configuration and activation, failing to achieve the effect of enhancing signal coverage quality. Summary of the Invention

[0005] This application provides a blind configuration method, apparatus, device, and storage medium for secondary carriers in carrier aggregation, to solve the problem that existing blind configuration methods for secondary carriers cannot effectively guarantee the signal quality of the configured secondary carriers, resulting in the inability to achieve the effect of enhancing signal coverage quality.

[0006] According to the first aspect disclosed in this application, a blind configuration method for secondary carriers in carrier aggregation is provided, comprising:

[0007] Obtain the signal quality of the serving cell configured on the terminal, as well as the signal quality of neighboring cells that have the same frequency as the serving cell;

[0008] Each of the serving cell and the neighboring cells is designated as a target cell, and co-site cells sharing a site with the target cell are determined; wherein, the frequency of the co-site cells is lower than that of the target cell;

[0009] Based on the signal quality of the target cell, obtain the signal quality of the co-located cell;

[0010] The secondary carrier of the terminal is determined based on the signal quality of each co-located cell.

[0011] In one feasible implementation, obtaining the signal quality of the serving cell configured by the terminal, and the signal quality of neighboring cells having the same frequency as the serving cell, includes:

[0012] Obtain the first signal measurement report reported by the terminal in the previous cycle;

[0013] If the time difference between the reporting time of the first signal measurement report and the current time is less than a preset threshold, then the signal quality of the serving cell and the signal quality of the neighboring cell are extracted from the first signal measurement report.

[0014] If the time difference between the reporting time of the first signal measurement report and the current time is greater than a preset threshold, then the second signal measurement report reported by the terminal in the next cycle is obtained, and the signal quality of the serving cell and the signal quality of the neighboring cell are extracted from the second signal measurement report.

[0015] In one feasible implementation, determining the co-site cells sharing a site with the target cell includes:

[0016] Based on basic engineering parameters, the site information and first azimuth angle of the target cell are obtained;

[0017] Based on the site information, candidate cells within a preset distance range from the target cell are obtained according to the basic engineering parameter information; wherein, the frequency of the candidate cells is lower than that of the target cell;

[0018] For each candidate cell, the second orientation angle of the candidate cell is obtained based on the basic engineering parameter information;

[0019] If the angle difference between the first directional angle and the second directional angle is within a preset angle range, then the candidate cell is determined to be a co-located cell co-located with the target cell.

[0020] In one feasible implementation, the signal quality of the co-site cell includes the RSRP value of the co-site cell or the RSRP value and SINR value of the co-site cell. Determining the secondary carrier of the terminal based on the signal quality of each co-site cell includes:

[0021] The RSRP values ​​of each co-site cell are compared to obtain the co-site cell with the highest RSRP value;

[0022] If the number of co-site cells with the highest RSRP value is equal to one, then the co-site cell with the highest RSRP value is configured as the secondary carrier of the terminal;

[0023] If the number of co-site cells with the largest RSRP value is greater than one, and the signal quality of the co-site cells does not include the SINR value of the co-site cells, then one co-site cell is randomly selected from the co-site cells with the largest RSRP value and configured as the secondary carrier of the terminal.

[0024] If the number of co-site cells with the largest RSRP value is greater than one, and the signal quality of the co-site cells includes the SINR value of the co-site cells, then the co-site cell with the largest SINR value among the co-site cells with the largest RSRP value is configured as the secondary carrier of the terminal.

[0025] In one feasible implementation, obtaining the signal quality of the co-site cell based on the signal quality of the target cell includes:

[0026] The transmit power per RE of the target cell, the transmit power per RE of the co-site cell, and the path loss difference are obtained; wherein the path loss difference is the difference between the path loss of the target cell and the path loss of the co-site cell.

[0027] The RSRP value of the co-site cell is obtained by subtracting the transmit power per RE of the target cell from the sum of the transmit power per RE of the co-site cell, the RSRP value of the target cell, and the path loss difference.

[0028] In one feasible implementation, the method further includes:

[0029] Based on a preset mapping relationship between time intervals and external interference values, the external interference value of the co-site cell at the current time is determined.

[0030] Obtain the set of interfering cells; wherein, the set of interfering cells includes the co-located cell and each neighboring cell of the co-located cell;

[0031] The downlink PRB occupancy rate of each interfering cell is input into the internal interference calculation model to obtain the internal interference value of the co-site cell;

[0032] The SINR value of the co-located cell is obtained by dividing the RSRP value of the co-located cell by the sum of the external interference value and the internal interference value.

[0033] In one feasible implementation, the method further includes, based on the signal quality of each co-located cell:

[0034] Acquire training data; wherein, the training data includes the historical downlink PRB occupancy rate data and historical internal interference value data of the co-site cell, as well as the historical downlink PRB occupancy rate data of each neighboring cell of the co-site cell;

[0035] The training data is used for machine learning training to obtain the internal disturbance calculation model.

[0036] According to a second aspect disclosed in this application, a blind configuration apparatus for secondary carriers in carrier aggregation is provided, comprising:

[0037] The signal quality acquisition module is used to acquire the signal quality of the serving cell configured by the terminal, as well as the signal quality of neighboring cells that have the same frequency as the serving cell.

[0038] The co-site cell acquisition module is used to identify co-site cells that co-site with the serving cell and each of the neighboring cells as target cells; wherein the frequency of the co-site cells is lower than that of the target cells;

[0039] The signal quality calculation module is used to obtain the signal quality of the co-site cell based on the signal quality of the target cell;

[0040] The secondary carrier configuration module is used to determine the secondary carrier of the terminal based on the signal quality of each co-located cell.

[0041] According to a third aspect disclosed in this application, an electronic device is provided, including a processor and a memory communicatively connected to the processor;

[0042] The memory stores computer-executed instructions;

[0043] The processor executes computer execution instructions stored in the memory to implement the method described in any one of the first aspects.

[0044] According to a fourth aspect disclosed in this application, a computer-readable storage medium is provided, wherein computer-executable instructions are stored therein, which, when executed by a processor, are used to implement the method described in any one of the first aspects.

[0045] According to the fifth aspect disclosed in this application, a computer program product is provided, comprising a computer program that, when executed by a processor, is used to implement the method described in any one of the first aspects.

[0046] Compared with the prior art, this application has the following beneficial effects:

[0047] This application provides a blind configuration method, apparatus, device, and storage medium for secondary carriers in carrier aggregation. Leveraging the characteristics of co-located mid-to-high frequency (MHF) and mid-to-low frequency (MLT) cells, it uses the coverage of MHF cells to predict the coverage of MLT cells. This allows for the selection of a MHF co-located cell with better signal quality as the terminal's secondary carrier without inter-frequency measurement. This more accurately configures the terminal with a suitable secondary carrier, ensuring the signal quality of the configured secondary carrier and effectively improving data transmission rates and reducing latency after adopting carrier aggregation technology. Attached Figure Description

[0048] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without inventive effort. Wherein:

[0049] Figure 1 A flowchart illustrating a blind configuration method for secondary carriers in carrier aggregation provided in this application embodiment;

[0050] Figure 2 A flowchart illustrating a method for obtaining the signal quality of a co-located cell, provided as an embodiment of this application;

[0051] Figure 3 A schematic diagram of a blind configuration device for a secondary carrier in carrier aggregation provided in this application embodiment;

[0052] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0053] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0054] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0055] Carrier aggregation (CA) is a wireless communication technology used to increase data transmission rate and spectral efficiency. It allows terminals to use multiple physical carriers (including one primary carrier and several secondary carriers) simultaneously for data transmission.

[0056] In existing carrier aggregation technologies, there are generally two methods for configuring secondary carriers: measurement-based and blind configuration. Blind configuration means that the secondary carrier configuration scheme is pre-defined during the cell planning phase. When a terminal needs to be configured with a secondary carrier, a pre-defined cell is selected according to the blind configuration scheme and configured as the terminal's secondary carrier. Measurement-based secondary carrier configuration has a longer latency and is suitable for scenarios where the primary and secondary carriers have different coverage areas, effectively avoiding configuration failures caused by differences in signal quality under different coverage areas. Blind configuration, on the other hand, has a shorter latency and is suitable for scenarios where the primary and secondary carriers have the same coverage area, enabling rapid configuration of LTE (Long Term Evolution) carrier aggregation functionality.

[0057] Existing blind configuration methods for secondary carriers cannot guarantee their signal quality because the secondary carriers are pre-defined. This can lead to situations where, after configuration and activation, the secondary carrier signal quality is poor, failing to enhance signal coverage. For example, during carrier planning, carrier A is aggregated with carriers B and C. When the terminal uses carrier A as the primary carrier, the secondary carrier is directly selected from carriers B and C. Since there are multiple carriers that can be used as secondary carriers, existing technologies typically randomly select one. For instance, carrier B might be randomly selected, but carrier C may have better signal quality than carrier B. Therefore, enabling carrier aggregation may not improve signal coverage.

[0058] To address the aforementioned technical issues, this application proposes a blind configuration method for secondary carriers in carrier aggregation. This method utilizes the coverage of mid-to-high frequency cells to estimate the coverage of co-located mid-to-low frequency cells, thereby selecting mid-to-low frequency co-located cells with better signal quality as secondary carriers for the terminal. This more accurately configures suitable secondary carriers for the terminal, ensuring the signal quality of the configured secondary carriers and effectively improving data transmission rates and reducing latency after adopting carrier aggregation technology.

[0059] It should be noted that the execution subject of the blind configuration method for secondary carriers in carrier aggregation provided in this application embodiment is the base station, and correspondingly, the blind configuration device for secondary carriers in carrier aggregation is also set in the base station.

[0060] Figure 1 This is a flowchart illustrating a blind configuration method for secondary carriers in carrier aggregation provided in an embodiment of this application. (See attached diagram.) Figure 1 In some embodiments, the blind configuration method for secondary carriers in this carrier aggregation includes the following steps:

[0061] S101, obtain the signal quality of the serving cell configured by the terminal, and the signal quality of neighboring cells with the same frequency as the serving cell.

[0062] In mobile communication technology, terminals periodically measure the strength, quality, and other relevant parameters of the signals received by the serving cell and neighboring cells. Based on these measurements, they periodically report signal measurement data to the base station. This allows the base station to evaluate the terminal's signal quality and optimize and adjust the network accordingly. These periodic reports help network providers monitor network performance and take appropriate measures to improve service quality. Therefore, the signal quality of the terminal's serving cell and the signal quality of neighboring cells sharing the same frequency can be obtained through the periodically reported signal measurement reports from the terminal.

[0063] Preferably, the acquisition of signal quality includes: acquiring a first signal measurement report reported by the terminal in the previous cycle; if the time difference between the reporting time of the first signal measurement report and the current time is less than a preset threshold, then extracting the signal quality of the serving cell and the signal quality of neighboring cells from the first signal measurement report; if the time difference between the reporting time of the first signal measurement report and the current time is greater than a preset threshold, then acquiring a second signal measurement report reported by the terminal in the next cycle, and extracting the signal quality of the serving cell and the signal quality of neighboring cells from the second signal measurement report.

[0064] Based on the characteristic that terminals periodically report signal quality measurement reports to base stations, the latest quality measurement report can be selected to extract the signal quality of the serving cell and neighboring cells. First, it is determined whether the time difference between the first quality measurement report reported in the previous cycle and the current time is greater than a preset threshold. If the time difference is not greater than the preset threshold, the first quality measurement report can be used as the signal measurement report. If the time difference is greater than the preset threshold, the system waits for the second quality measurement report reported in the next cycle to be used as the signal measurement report. This ensures the accuracy of the relevant signal quality parameters in the signal measurement report.

[0065] S102, each cell in the serving cell and neighboring cells is taken as the target cell, and the co-site cells sharing the site with the target cell are determined; wherein, the frequency of the co-site cells is lower than that of the target cell.

[0066] Generally speaking, by taking each serving cell and adjacent cells as target cells, the co-station cells of each target cell can be determined separately.

[0067] Specifically, in the construction of existing mobile communication networks, multiple cells of different frequency bands may share the same physical site and related facilities. This co-location can involve multiple cells of different frequency bands existing on the same base station. The main purpose of co-location is to reduce construction and operation and maintenance costs and improve base station utilization by sharing resources. On the same base station, low- and mid-frequency cells and some high- and mid-frequency cells are likely to be co-located in a ratio of 1:x (e.g., 1:2). Therefore, the coverage quality of low- and mid-frequency cells can be estimated using the coverage of the co-located high- and mid-frequency cells. In other words, the signal quality of the target cell can be used to obtain the signal quality of the co-located cells, making secondary carrier blind matching more accurate without inter-frequency measurements.

[0068] The reason for the restriction that the frequency of the co-site cell must be lower than that of the serving cell is as follows: For example, the frequency points for 5G network deployment are generally 3.5GHz, 2.1GHz, and 900MHz. If the primary carrier is 3.5GHz, then the secondary carriers should be 2.1GHz and 900MHz; if the primary carrier is 2.1GHz, then the secondary carrier should be 900MHz. This is because the lower the carrier frequency, the lower the transmission loss and penetration loss, and the farther the coverage. Therefore, using a secondary carrier with a lower frequency than the primary carrier can enhance the coverage quality of the primary carrier. If both the primary and secondary carriers are 3.5GHz, theoretically, it is impossible to improve coverage quality through carrier aggregation. Since the co-site cell is subsequently selected as the secondary carrier for the terminal, the frequency of the co-site cell must be lower than that of the serving cell (primary carrier).

[0069] Preferably, determining co-located cells sharing a site with the target cell includes: obtaining the site information and a first azimuth angle of the target cell based on basic engineering parameters; obtaining candidate cells within a preset distance range from the target cell based on the site information and the basic engineering parameters; wherein the frequency of the candidate cells is lower than that of the target cell; obtaining a second azimuth angle of each candidate cell based on the basic engineering parameters; if the angle difference between the first azimuth angle and the second azimuth angle is within a preset angle range, then the candidate cell is determined to be a co-located cell sharing a site with the target cell.

[0070] For co-located cells sharing a site with the target cell, the determination can be made based on the site location and azimuth angle of both the target cell and the cell to be determined. If the target cell and the cell to be determined share a site, the difference in their site location distance and azimuth angle should both be within a certain range. Therefore, the determination of whether the cell to be determined shares a site with the target cell can be made using these two parameters: site location and azimuth angle. First, candidate cells within a preset distance range from the target cell are selected. If the selected cells meet the site location co-location condition, then the azimuth angle is determined. If a candidate cell meets the azimuth angle condition, it is determined to be a co-located cell of the target cell.

[0071] Specifically, basic engineering parameter information refers to the fundamental engineering parameters and indicators in an engineering project. In this case, it refers to information containing the relevant engineering parameters and indicators of all cells within a certain area. For example, the basic engineering parameter information of a target cell generally includes the following parameters: Cell identifier, a numerical or alphanumeric code used to uniquely identify a carrier; Frequency, specifying the radio signal frequency used by the cell, in Hertz (Hz), Megahertz (MHz), or Gigahertz (GHz); Bandwidth, representing the spectrum bandwidth allocated to the cell, common values ​​are 5MHz, 10MHz, 20MHz, etc.; PCI (Physical Carrier Identifier), used to distinguish between different carriers; PCI is a 16-bit field ranging from 0 to 503; Reference signal power, representing the power level of the reference signal transmitted by the carrier; Base station antenna azimuth angle, representing the horizontal angle of the base station antenna, usually with true north as the reference; Base station antenna tilt angle, representing the angle of downward (positive) or upward (negative) tilt of the base station antenna, used to control downlink coverage and interference management; Radio frequency output power, representing the power level of the base station's transmitted signal; Uplink receive sensitivity, indicating the sensitivity level of the base station in receiving uplink signals.

[0072] Specifically, the preset distance range varies depending on the coverage scenario and the distance between stations. Taking a dense urban area as an example, the preset distance range can be ±20 meters. Determining that the difference in directional angles is within the preset angle range is primarily to further confirm that the candidate cell is a co-located cell of the target cell, and to ensure that the coverage directions of the candidate cell and the target cell are basically consistent. This allows the signal quality of the co-located cell to be calculated based on the signal quality of the target cell. For example, the preset angle range can be ±5 degrees.

[0073] S103: Based on the signal quality of the target cell, obtain the signal quality of the co-located cell.

[0074] Since the co-site cell and the target cell are located at the same base station, the signal quality of the co-site cell can be obtained by utilizing the signal quality of the target cell.

[0075] S104. Determine the secondary carrier of the terminal based on the signal quality of each co-located cell.

[0076] Specifically, after obtaining the signal quality of each co-site cell based on the signal quality of each target cell, the signal quality of each co-site cell is compared, and the co-site cell whose signal quality meets the configuration conditions is selected as the secondary carrier of the terminal, thus completing the blind configuration of the secondary carrier.

[0077] Preferably, the signal quality of the co-site cell includes the RSRP value of the co-site cell or the RSRP value and SINR value of the co-site cell. Therefore, determining the secondary carrier of the terminal based on the signal quality of each co-site cell includes: comparing the RSRP values ​​of each co-site cell to obtain the co-site cell with the largest RSRP value; if the number of co-site cells with the largest RSRP value is equal to one, then the co-site cell with the largest RSRP value is configured as the secondary carrier of the terminal; if the number of co-site cells with the largest RSRP value is greater than one, and the signal quality of the co-site cells does not include the SINR value of the co-site cells, then one co-site cell is randomly selected from the co-site cells with the largest RSRP value and configured as the secondary carrier of the terminal; if the number of co-site cells with the largest RSRP value is greater than one, and the signal quality of the co-site cells includes the SINR value of the co-site cells, then the co-site cell with the largest SINR value among the co-site cells with the largest RSRP value is configured as the secondary carrier of the terminal.

[0078] Both RSRP and SINR values ​​are parameters used to represent signal quality. Since the signal quality of a co-located cell can include the RSRP value of the co-located cell or both the RSRP and SINR values, a suitable co-located cell can be selected as the secondary carrier for the terminal based on actual needs.

[0079] If the signal quality of a co-site cell only includes the RSRP value of the co-site cell, then the co-site cell with the largest RSRP value is selected as the terminal's secondary carrier. If multiple co-site cells have the largest RSRP value, then one of them is randomly selected as the terminal's secondary carrier. Using the RSRP value of the co-site cell to configure the secondary carrier shortens the configuration time and completes the selection and configuration of the secondary carrier as quickly as possible, offering the advantage of high secondary carrier configuration efficiency.

[0080] If the signal quality of a co-located cell includes both its RSRP and SINR values, and the RSRP value of one co-located cell is at its maximum, then the SINR values ​​of these co-located cells are compared, and the co-located cell with the highest SINR value is selected as the terminal's secondary carrier. This method of configuring the secondary carrier using both the RSRP and SINR values ​​of the co-located cells is more time-consuming than using only the RSRP value, but it offers higher accuracy and improves the precision of the secondary carrier configuration.

[0081] Specifically, RSRP (Reference Signal Received Power) is a metric used in LTE (Long-Term Evolution) wireless communication systems to evaluate the power of the received reference signal. It represents the power level of the physical layer reference signal measured in the LTE network. RSRP is measured in dBm (decibel-milliwatts), representing the received reference signal power relative to 1 milliwatt of reference power; a higher value indicates a stronger received signal. RSRP is primarily used to assess the strength of the signal received by the terminal. It helps the network optimize and adjust to ensure normal communication connections and data transmission quality. In LTE systems, terminals can select the optimal base station and perform handover operations based on the measured RSRP value to provide better service coverage and performance.

[0082] Specifically, SINR (Signal-to-Interference-plus-Noise Ratio) is a metric used in wireless communication systems to evaluate the ratio between the signal and the interference plus noise. It represents the ratio between the received signal power and the interference plus noise power. SINR is usually measured in dB (decibels). A higher SINR value indicates a stronger signal power relative to the interference and noise, which is beneficial for improving the reliability and speed of data transmission.

[0083] In this embodiment, by leveraging the characteristics of co-location construction of mid-to-high frequency (MTHF) and mid-to-low frequency (LTF) cells, the coverage of MTHF cells is estimated based on the coverage of MTHF cells. Thus, without performing inter-frequency measurements, a MTHF co-location cell with better signal quality is selected as the auxiliary carrier for the terminal. This allows for more accurate configuration of a suitable auxiliary carrier for the terminal, ensuring the signal quality of the configured auxiliary carrier and effectively improving the data transmission rate and reducing latency after adopting carrier aggregation technology.

[0084] exist Figure 1 In the blind configuration method for secondary carriers in carrier aggregation shown, it is necessary to obtain the signal quality of co-site cells based on the signal quality of the target cell. The following section combines... Figure 2 The technical solution of the blind configuration method for secondary carriers in the above-mentioned carrier aggregation further introduces the content on obtaining the signal quality of co-site cells based on the signal quality of the target cell.

[0085] Figure 2 A flowchart illustrating a method for obtaining the signal quality of a co-located cell, as provided in this application embodiment, is shown below. Figure 2 In some embodiments, the method for obtaining the signal quality of a co-located cell includes the following steps:

[0086] S201, obtain the transmit power per RE of the target cell, the transmit power per RE of the co-site cell, and the path loss difference; wherein, the path loss difference is the difference between the path loss of the target cell and the path loss of the co-site cell.

[0087] The transmit power per RE in the target cell is related to the number of transmit antennas and the transmit power of the daily antenna. The transmit power per RE in the co-located cell is also related to the number of transmit antennas and the transmit power of the daily antenna. Both can be obtained from the basic engineering parameters of the carrier.

[0088] In existing technologies, the path loss of a cell can be determined based on the cell's frequency band information and the applicable wireless propagation model for that frequency band. For example, the Okumura-Hata model is used for coverage analysis of the NR 900MHz band, and the path loss for the NR 900MHz band can be obtained through the Okumura-Hata model; similarly, the Cost231-Hata model is used for coverage analysis of the NR 2.1GH band, and the path loss for the NR 2.1GH band can be obtained through the Cost231-Hata model. Therefore, once the frequency band information and propagation model of the target cell and co-located cells are determined, the path loss difference is a fixed value. In the above example, the path loss difference between the NR 900MHz band and the co-located cell is taken as 5.5dB.

[0089] S202, based on the sum of the transmit power per RE of the co-site cell, the RSRP value of the target cell, and the path loss difference, subtract the transmit power per RE of the target cell to obtain the RSRP value of the co-site cell.

[0090] Specifically, the RSRP value of a co-located cell satisfies the following formula:

[0091] RSRPi = Pi - Ps + RSRPs + Dloss

[0092] Where RSRPi represents the RSRP value of the co-site cell, Pi represents the transmit power per RE of the co-site cell, Ps represents the transmit power per RE of the target cell, RSRPs represents the RSRP value of the target cell, and Dloss represents the path loss difference.

[0093] S203, based on the preset mapping relationship between time intervals and external interference values, determine the external interference value of the co-located cell at the current time.

[0094] External interference values ​​include the total interference from other systems, such as competitor base stations and repeaters. These can be measured or estimated values, and are time-dependent, varying across different time periods. The mapping relationship between the current time interval and the external interference value is queried to obtain the specific value of the external interference at the current time.

[0095] Specifically, the pre-defined mapping relationship between the time interval and the external interference value is obtained through measurement and calibration.

[0096] S204, obtain the set of interfering cells; wherein, the set of interfering cells includes co-located cells and each neighboring cell of the co-located cell.

[0097] Specifically, since the basic engineering parameter information contains information on the relevant engineering parameters and indicators of all communities within a certain area, the neighboring cells of a co-located community can be obtained based on the basic engineering parameter information.

[0098] S205. Input the downlink PRB occupancy rate of each interfering cell into the internal interference calculation model to obtain the internal interference value of the co-site cell.

[0099] In wireless communication systems, PRB (Physical Resource Block) occupancy rate refers to the utilization rate or proportion of physical resource blocks. A physical resource block is the basic unit used for wireless communication scheduling and transmission at the physical layer, typically composed of a certain number of subcarriers, used to carry data or control information. The number of PRBs is determined by network planning and configuration; different wireless technologies and frequency bands may have different numbers of PRBs. PRB occupancy rate refers to the proportion of PRBs actually used within a given time and spatial domain. For a specific cell or wireless channel, PRB occupancy rate can measure its resource utilization efficiency and load status.

[0100] The actual number of PRBs used can be obtained through the monitoring system or measurement tools of the wireless network configured at the base station, usually based on the average value over a statistical period. The number of available PRBs depends on the cell configuration and network planning, and is usually related to bandwidth and frequency band. The PRB utilization rate of a cell directly affects network performance and user experience. A low PRB utilization rate means a waste of physical resources within the cell, which may lead to insufficient network capacity; while a high PRB utilization rate may lead to increased resource contention and interference, thereby affecting communication quality.

[0101] Specifically, the PRB utilization rate is calculated according to the formula: PRB utilization rate = actual PRB usage / available PRB usage.

[0102] Preferably, training data is acquired; wherein, the training data includes historical downlink PRB occupancy rate data and historical internal interference value data of the co-site cell, as well as historical downlink PRB occupancy rate data of each neighboring cell of the co-site cell; the training data is used for machine learning training to obtain an internal interference calculation model.

[0103] Specifically, by using the historical downlink PRB occupancy rate data and historical internal interference value data of the co-site cell as training data for machine learning training, an interference calculation model is obtained with the downlink PRB occupancy rate of the co-site cell and each neighboring cell of the co-site cell as input and the internal interference value of the co-site cell as output.

[0104] Specifically, for the collection of training data, relevant historical data from different time periods should be collected.

[0105] Specifically, for historical internal interference value data, the internal interference value data of co-located cells can be periodically reported through the terminal's periodic reporting mechanism.

[0106] S206. Divide the RSRP value of the co-located cell by the sum of the external interference value and the internal interference value to obtain the SINR value of the co-located cell.

[0107] Specifically, the SINR value of a co-located cell satisfies the following formula:

[0108] SINRi=RSRPi / (Ni+Noi)

[0109] Wherein, SINRi represents the SINR value of the co-located cell, RSRPi represents the RSRP value of the co-located cell, Ni represents the internal interference value, and Noi represents the external interference value.

[0110] In this embodiment, it can be seen that the SINR value of the co-site cell is obtained based on the SINR value of the co-site cell. Therefore, whether to calculate SINR is optional. In order to improve system efficiency and complete the blind configuration of secondary carriers as soon as possible, the SINR value can be omitted and the configuration determination of secondary carriers can be made directly based on the RSRP value. On the other hand, if higher accuracy is required, the SINR value can be further used to determine the configuration of secondary carriers.

[0111] Figure 3 This is a schematic diagram of a blind configuration device for a secondary carrier in carrier aggregation provided in an embodiment of this application. (See attached diagram.) Figure 3 The blind configuration device for secondary carriers in the carrier aggregation includes various functional modules for implementing the blind configuration method for secondary carriers in the aforementioned carrier aggregation. Any functional module can be implemented by software and / or hardware.

[0112] In some embodiments, the blind configuration device 300 for secondary carriers in carrier aggregation includes a signal quality acquisition module 301, a co-site cell acquisition module 302, a signal quality calculation module 303, and a secondary carrier configuration module 304. Wherein:

[0113] The signal quality acquisition module 301 is used to acquire the signal quality of the serving cell configured by the terminal, as well as the signal quality of neighboring cells that have the same frequency as the serving cell;

[0114] The co-site cell acquisition module 302 is used to identify co-site cells that co-site with the target cell by taking each cell in the serving cell and neighboring cells as the target cell; wherein, the frequency of the co-site cell is lower than that of the target cell;

[0115] The signal quality calculation module 303 is used to obtain the signal quality of the co-located cell based on the signal quality of the target cell;

[0116] The secondary carrier configuration module 304 is used to determine the secondary carrier of the terminal based on the signal quality of each co-located cell.

[0117] In some embodiments, the signal quality acquisition module 301 is specifically used for:

[0118] Obtain the first signal measurement report reported by the terminal in the previous cycle;

[0119] If the time difference between the reporting time of the first signal measurement report and the current time is less than a preset threshold, then the signal quality of the serving cell and the signal quality of the neighboring cells are extracted from the first signal measurement report.

[0120] If the time difference between the reporting time of the first signal measurement report and the current time is greater than a preset threshold, then the second signal measurement report reported by the terminal in the next cycle is obtained, and the signal quality of the serving cell and the signal quality of the neighboring cells are extracted from the second signal measurement report.

[0121] In some embodiments, the co-site cell acquisition module 302 is specifically used for:

[0122] Based on basic engineering parameters, obtain the site information and first azimuth angle of the target cell;

[0123] Based on site information and basic engineering parameters, candidate cells within a preset distance range from the target cell are obtained; wherein, the frequency of the candidate cells is lower than that of the target cell.

[0124] For each candidate cell, the second azimuth angle of the candidate cell is obtained based on the basic engineering parameters.

[0125] If the angle difference between the first azimuth angle and the second azimuth angle is within the preset angle range, then the candidate cell is determined to be a co-located cell that co-locates with the target cell.

[0126] In some embodiments, the secondary carrier configuration module 304 is specifically used for:

[0127] The RSRP values ​​of each co-site cell are compared to obtain the co-site cell with the highest RSRP value;

[0128] If the number of co-site cells with the highest RSRP value is equal to one, then the co-site cell with the highest RSRP value is configured as the terminal's secondary carrier;

[0129] If the number of co-site cells with the highest RSRP value is greater than one, and the signal quality of the co-site cells does not include the SINR value of the co-site cells, then one co-site cell with the highest RSRP value is randomly selected from the co-site cells and configured as the secondary carrier of the terminal.

[0130] If the number of co-site cells with the highest RSRP value is greater than one, and the signal quality of the co-site cells includes the SINR value of the co-site cells, then the co-site cell with the highest SINR value among the co-site cells with the highest RSRP value will be configured as the secondary carrier of the terminal.

[0131] In some embodiments, the signal quality calculation module 303 is specifically used for:

[0132] Obtain the transmit power per RE of the target cell, the transmit power per RE of the co-site cell, and the path loss difference; where the path loss difference is the difference between the path loss of the target cell and the path loss of the co-site cell.

[0133] The RSRP value of the co-site cell is obtained by subtracting the transmit power per RE of the target cell from the sum of the transmit power of the co-site cell per RE of the co-site cell, the RSRP value of the target cell, and the path loss difference.

[0134] In some embodiments, the signal quality calculation module 303 is specifically used for:

[0135] Based on the preset mapping relationship between time intervals and external interference values, the external interference value of the co-located cell at the current time is determined;

[0136] Obtain the set of interfering cells; wherein, the set of interfering cells includes co-located cells and each neighboring cell of the co-located cell;

[0137] Input the downlink PRB occupancy rate of each interfering cell into the internal interference calculation model to obtain the internal interference value of the co-site cell;

[0138] The SINR value of the co-located cell is obtained by dividing the RSRP value of the co-located cell by the sum of the external interference value and the internal interference value.

[0139] In some embodiments, the signal quality calculation module 303 is specifically used for:

[0140] Acquire training data; the training data includes historical downlink PRB occupancy rate data and historical internal interference value data of the co-site cell, as well as historical downlink PRB occupancy rate data of each neighboring cell of the co-site cell;

[0141] The training data is used for machine learning training to obtain an internal disturbance calculation model.

[0142] The blind configuration device 300 for secondary carriers in carrier aggregation provided in this application embodiment is used to execute the technical solution provided in the aforementioned embodiment of the blind configuration method for secondary carriers in carrier aggregation. Its implementation principle and technical effects are similar to those in the aforementioned embodiment of the method, and will not be repeated here.

[0143] It should be noted that the division of the various modules in the above device is merely a logical functional division. In actual implementation, they can be fully or partially integrated into a single physical entity, or they can be physically separated. Furthermore, these modules can be implemented entirely in software via processing elements, entirely in hardware, or partially in software via processing elements and partially in hardware. For example, the signal quality acquisition module can be a separate processing element, or it can be integrated into a chip within the device. Alternatively, it can be stored as program code in the device's memory, and its functions can be called and executed by a processing element. The implementation of other modules is similar. Moreover, these modules can be fully or partially integrated together, or implemented independently. The processing element here can be an integrated circuit with signal processing capabilities. During implementation, each step of the above method or each of the above modules can be completed through integrated logic circuits in the processor element or through software instructions.

[0144] Figure 4 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. (See attached diagram.) Figure 4 The electronic device 400 includes: a processor 401, and a memory 402 communicatively connected to the processor 401;

[0145] Memory 402 stores instructions executed by the computer;

[0146] The processor 401 executes computer execution instructions stored in the memory 02 to implement the technical solution of the blind configuration method for secondary carriers in the aforementioned carrier aggregation.

[0147] In the aforementioned electronic device 400, the memory 402 and the processor 401 are electrically connected directly or indirectly to achieve data transmission or interaction. For example, these components can be electrically connected to each other through one or more communication buses or signal lines, such as bus connections. The bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. Buses can be classified as address buses, data buses, control buses, etc., but this does not mean that there is only one bus or one type of bus. The memory 402 stores computer execution instructions that implement the blind configuration method of the secondary carrier in the aforementioned carrier aggregation, including at least one software functional module that can be stored in the memory 402 in the form of software or firmware. The processor 401 executes various functional applications and data processing by running the software program and module stored in the memory 402.

[0148] The memory 402 includes at least one type of readable storage medium, not limited to Random Access Memory (RAM), Read Only Memory (ROM), Programmable Read-Only Memory (PROM), Erasable Programmable Read-Only Memory (EPROM), Electrically Erasable Programmable Read-Only Memory (EEPROM), etc. The memory 402 stores programs, which are executed by the processor 401 upon receiving execution instructions. Furthermore, the software programs and modules within the memory 402 may also include an operating system, which may include various software components and / or drivers for managing system tasks (e.g., memory management, storage device control, power management, etc.) and can communicate with various hardware or software components to provide an operating environment for other software components.

[0149] Processor 401 can be an integrated circuit chip with signal processing capabilities. The aforementioned processor 401 can be a general-purpose processor, including a Central Processing Unit (CPU), a Network Processor (NP), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), etc. It can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of this application. The general-purpose processor can be a microprocessor, or processor 401 can be any conventional processor.

[0150] The electronic device 400 is used to execute the technical solution provided in the aforementioned embodiment of the blind configuration method for secondary carriers in carrier aggregation. Its implementation principle and technical effects are similar to those in the aforementioned method embodiment, and will not be repeated here.

[0151] This application also provides a computer-readable storage medium storing computer-executable instructions. When a processor executes the computer-executable instructions, it implements the blind configuration method for secondary carriers in the aforementioned carrier aggregation.

[0152] The aforementioned computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk, or optical disk. The computer-readable storage medium can be any available medium accessible to a general-purpose or special-purpose computer.

[0153] An exemplary readable storage medium is coupled to a processor, enabling the processor to read information from and write information to the readable storage medium. Alternatively, the readable storage medium can be an integral part of the processor. The processor and the readable storage medium can reside in an Application Specific Integrated Circuit (ASIC). Alternatively, the processor and the readable storage medium can exist as discrete components in the control device of a blind configuration device for secondary carriers in carrier aggregation.

[0154] This application also provides a computer program product, including a computer program, which, when executed by a processor, is used to implement the blind configuration method for secondary carriers in the aforementioned carrier aggregation.

[0155] In the above embodiments, those skilled in the art will understand that the above method embodiments can be implemented entirely or partially by software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented entirely or partially in the form of a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of the present invention is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless network, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available media can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., DVDs), or semiconductor media (e.g., solid-state drives (SSDs)).

[0156] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0157] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A blind configuration method for secondary carriers in carrier aggregation, characterized in that, include: Obtain the signal quality of the serving cell configured on the terminal, as well as the signal quality of neighboring cells that have the same frequency as the serving cell; Each of the serving cell and the neighboring cells is designated as a target cell, and co-site cells sharing a site with the target cell are determined; wherein the frequency of the co-site cells is lower than that of the target cell; Based on the signal quality of the target cell, obtain the signal quality of the co-located cell; The secondary carrier of the terminal is determined based on the signal quality of each co-located cell; Wherein, obtaining the signal quality of the co-site cell based on the signal quality of the target cell includes: The transmit power per RE of the target cell, the transmit power per RE of the co-site cell, and the path loss difference are obtained; wherein the path loss difference is the difference between the path loss of the target cell and the path loss of the co-site cell. The RSRP value of the co-site cell is obtained by subtracting the transmit power per RE of the target cell from the sum of the transmit power per RE of the co-site cell, the RSRP value of the target cell, and the path loss difference.

2. The method according to claim 1, characterized in that, The acquisition of the signal quality of the serving cell configured by the terminal, and the signal quality of neighboring cells having the same frequency as the serving cell, includes: Obtain the first signal measurement report reported by the terminal in the previous cycle; If the time difference between the reporting time of the first signal measurement report and the current time is less than a preset threshold, then the signal quality of the serving cell and the signal quality of the neighboring cell are extracted from the first signal measurement report. If the time difference between the reporting time of the first signal measurement report and the current time is greater than a preset threshold, then the second signal measurement report reported by the terminal in the next cycle is obtained, and the signal quality of the serving cell and the signal quality of the neighboring cell are extracted from the second signal measurement report.

3. The method according to claim 1, characterized in that, The determination of co-site cells sharing a site with the target cell includes: Based on basic engineering parameters, the site information and first azimuth angle of the target cell are obtained; Based on the site information, candidate cells within a preset distance range from the target cell are obtained according to the basic engineering parameter information; wherein, the frequency of the candidate cells is lower than that of the target cell; For each candidate cell, the second orientation angle of the candidate cell is obtained based on the basic engineering parameter information; If the angle difference between the first directional angle and the second directional angle is within a preset angle range, then the candidate cell is determined to be a co-located cell co-located with the target cell.

4. The method according to claim 1, characterized in that, The signal quality of the co-site cell includes the RSRP value of the co-site cell or the RSRP value and SINR value of the co-site cell. Determining the secondary carrier of the terminal based on the signal quality of each co-site cell includes: The RSRP values ​​of each co-site cell are compared to obtain the co-site cell with the highest RSRP value; If the number of co-site cells with the highest RSRP value is equal to one, then the co-site cell with the highest RSRP value is configured as the secondary carrier of the terminal; If the number of co-site cells with the largest RSRP value is greater than one, and the signal quality of the co-site cells does not include the SINR value of the co-site cells, then one co-site cell with the largest RSRP value is randomly selected from the co-site cells and configured as the secondary carrier of the terminal. If the number of co-site cells with the largest RSRP value is greater than one, and the signal quality of the co-site cells includes the SINR value of the co-site cells, then the co-site cell with the largest SINR value among the co-site cells with the largest RSRP value is configured as the secondary carrier of the terminal.

5. The method according to claim 1, characterized in that, The method further includes: Based on a preset mapping relationship between time intervals and external interference values, the external interference value of the co-site cell at the current time is determined. Obtain the set of interfering cells; wherein, the set of interfering cells includes the co-located cell and each neighboring cell of the co-located cell; The downlink PRB occupancy rate of each interfering cell is input into the internal interference calculation model to obtain the internal interference value of the co-site cell; The SINR value of the co-located cell is obtained by dividing the RSRP value of the co-located cell by the sum of the external interference value and the internal interference value.

6. The method according to claim 5, characterized in that, The method further includes: Acquire training data; wherein, the training data includes the historical downlink PRB occupancy rate data and historical internal interference value data of the co-site cell, as well as the historical downlink PRB occupancy rate data of each neighboring cell of the co-site cell; The training data is used for machine learning training to obtain the internal disturbance calculation model.

7. A blind configuration device for secondary carriers in carrier aggregation, characterized in that, include: The signal quality acquisition module is used to acquire the signal quality of the serving cell configured by the terminal, as well as the signal quality of neighboring cells that have the same frequency as the serving cell. The co-site cell acquisition module is used to identify co-site cells that co-site with the serving cell and each of the neighboring cells as target cells; wherein the frequency of the co-site cells is lower than that of the target cells; The signal quality calculation module is used to obtain the signal quality of the co-site cell based on the signal quality of the target cell; The secondary carrier configuration module is used to determine the secondary carrier of the terminal based on the signal quality of each co-site cell; Wherein, obtaining the signal quality of the co-site cell based on the signal quality of the target cell includes: The transmit power per RE of the target cell, the transmit power per RE of the co-site cell, and the path loss difference are obtained; wherein the path loss difference is the difference between the path loss of the target cell and the path loss of the co-site cell. The RSRP value of the co-site cell is obtained by subtracting the transmit power per RE of the target cell from the sum of the transmit power per RE of the co-site cell, the RSRP value of the target cell, and the path loss difference.

8. An electronic device, characterized in that, Includes a processor and a memory communicatively connected to the processor; The memory stores computer-executed instructions; The processor executes computer execution instructions stored in the memory to implement the method as described in any one of claims 1 to 6.

9. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores computer-executable instructions, which, when executed by a processor, are used to implement the method as described in any one of claims 1 to 6.

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