WO2022062908A1 - 一种配置切换配置信息的方法及装置 - Google Patents

一种配置切换配置信息的方法及装置 Download PDF

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Publication number
WO2022062908A1
WO2022062908A1 PCT/CN2021/117426 CN2021117426W WO2022062908A1 WO 2022062908 A1 WO2022062908 A1 WO 2022062908A1 CN 2021117426 W CN2021117426 W CN 2021117426W WO 2022062908 A1 WO2022062908 A1 WO 2022062908A1
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Prior art keywords
handover
terminal
cell
configuration information
handover configuration
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PCT/CN2021/117426
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English (en)
French (fr)
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李高盛
常世元
李玉诗
张斌
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大唐移动通信设备有限公司
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Publication of WO2022062908A1 publication Critical patent/WO2022062908A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point

Definitions

  • the present application relates to the field of communication technologies, and in particular, to a method and apparatus for configuring handover configuration information.
  • the configuration process of indoor and outdoor intra-frequency handover configuration information is generally as follows: the base station uniformly configures various measurement reporting information and handover configuration information (such as offset value, delay time, etc.) The configured measurement and reporting information is measured and reported, and the base station makes a handover decision on the terminal according to the unified handover configuration information, thereby completing the indoor and outdoor intra-frequency handover process. Based on the above process, the base station uses the same handover configuration information for all terminals in the cell to make a handover decision, and the terminal performs cell handover too late or too early because the handover configuration information does not match the handover scenario where the terminal is located.
  • various measurement reporting information and handover configuration information such as offset value, delay time, etc.
  • Embodiments of the present application provide a method and apparatus for configuring handover configuration information, so as to improve the accuracy of cell handover.
  • an embodiment of the present application provides a method for configuring handover configuration information, including:
  • the handover configuration information is sent to the serving base station of the terminal.
  • the handover configuration strategy is the first handover configuration strategy or the second handover configuration strategy
  • the first handover configuration policy corresponds to the first handover configuration information
  • the second handover configuration policy corresponds to the second handover configuration information
  • the handover decision condition corresponding to the first handover configuration information is lower than the handover decision condition corresponding to the second handover configuration information.
  • the first handover configuration information and the second handover configuration information respectively include at least one of the delay time and the handover offset value of the cell where the terminal is located, and the delay time and the handover offset value of the neighboring cells of the cell where the terminal is located. item;
  • the first handover configuration information and the second handover configuration information satisfy at least one of the following conditions:
  • the delay time of the cell where the terminal is located in the first handover configuration information is less than the delay time of the cell where the terminal is located in the second handover configuration information
  • the handover offset value of the cell where the terminal is located in the first handover configuration information is smaller than the handover offset value of the cell where the terminal is located in the second handover configuration information
  • the delay time of the neighboring cell of the cell where the terminal is located in the first handover configuration information is less than the delay time of the cell where the terminal is located in the second handover configuration information
  • the handover offset value of the neighboring cell of the cell where the terminal is located in the first handover configuration information is smaller than the handover offset value of the cell where the terminal is located in the second handover configuration information.
  • acquiring the cell measurement information sent by the terminal includes:
  • the handover scenario category of the terminal is determined according to the cell measurement information, including:
  • the feature vectors are clustered to obtain the switching scene category of the terminal.
  • acquiring the switching configuration policy corresponding to the switching scene category includes:
  • the relationship table between the switching scene category and the switching configuration strategy is queried according to the switching scene category, and the switching configuration strategy corresponding to the switching scene category is obtained.
  • the first terminal group is any one terminal group in at least one terminal group, and the first terminal group corresponds to the first switching scene category;
  • the average handover times of the terminals in the first terminal group per unit time, and determine the handover configuration policy corresponding to the first handover scene category according to the average handover times;
  • a relationship table between the handover scene category and the handover configuration strategy is obtained.
  • the handover configuration policy corresponding to each handover scenario category is determined, including:
  • the first switching scene category corresponds to the first switching configuration strategy; otherwise, it is determined that the first switching scene category corresponds to the first switching configuration strategy.
  • the second handover configuration strategy wherein U is the maximum value of the average number of handovers per unit time corresponding to at least one terminal group, and a is greater than 0 and less than U.
  • an embodiment of the present application provides a network device, including:
  • an acquisition module for acquiring cell measurement information sent by the terminal
  • a category determination module used for determining the switching scene category of the terminal according to the cell measurement information
  • the obtaining module is further configured to obtain the switching configuration policy corresponding to the switching scene category, and obtain the switching configuration information corresponding to the switching configuration policy;
  • the sending module is used for sending the handover configuration information to the serving base station of the terminal.
  • the handover configuration strategy is the first handover configuration strategy or the second handover configuration strategy
  • the first handover configuration policy corresponds to the first handover configuration information
  • the second handover configuration policy corresponds to the second handover configuration information
  • the handover decision condition corresponding to the first handover configuration information is lower than the handover decision condition corresponding to the second handover configuration information.
  • the first handover configuration information and the second handover configuration information respectively include at least one of the delay time and the handover offset value of the cell where the terminal is located, and the delay time and the handover offset value of the neighboring cells of the cell where the terminal is located. item;
  • the first handover configuration information and the second handover configuration information satisfy at least one of the following conditions:
  • the delay time of the cell where the terminal is located in the first handover configuration information is less than the delay time of the cell where the terminal is located in the second handover configuration information
  • the handover offset value of the cell where the terminal is located in the first handover configuration information is smaller than the handover offset value of the cell where the terminal is located in the second handover configuration information
  • the delay time of the neighboring cell of the cell where the terminal is located in the first handover configuration information is less than the delay time of the cell where the terminal is located in the second handover configuration information
  • the handover offset value of the neighboring cell of the cell where the terminal is located in the first handover configuration information is smaller than the handover offset value of the cell where the terminal is located in the second handover configuration information.
  • the acquisition module is specifically used for:
  • the category determination module is specifically used for:
  • the feature vectors are clustered to obtain the switching scene category of the terminal.
  • the acquisition module is also used for:
  • the relationship table between the switching scene category and the switching configuration strategy is queried according to the switching scene category, and the switching configuration strategy corresponding to the switching scene category is obtained.
  • it also includes a training module and a relationship table determination module;
  • the training module is used for acquiring cell measurement information of at least one terminal in at least one cell, and according to the cell measurement information of at least one terminal, respectively determining the handover scenario category of at least one terminal, and obtaining at least one terminal group, the The terminals belong to the same switching scene category, the first terminal group is any one terminal group in at least one terminal group, and the first terminal group corresponds to the first switching scene category;
  • the relationship table determination module is used to determine the average switching times of the terminals in the first terminal group per unit time according to the historical switching records of the terminals in the first terminal group, and determine the corresponding switching scene category according to the average switching times.
  • a handover configuration strategy according to the handover configuration strategy corresponding to the handover scene category corresponding to each terminal group in the at least one terminal group, a relationship table between the handover scene category and the handover configuration strategy is obtained.
  • the relationship table determination module is used for:
  • the first switching scene category corresponds to the first switching configuration strategy; otherwise, it is determined that the first switching scene category corresponds to the first switching configuration strategy.
  • the second handover configuration strategy wherein U is the maximum value of the average number of handovers per unit time corresponding to at least one terminal group, and a is greater than 0 and less than U.
  • an embodiment of the present application provides a network device, including a processor, a memory, and a transceiver;
  • a transceiver which receives and transmits data under the control of the processor
  • the processor is used for reading computer instructions and executing the method of configuring switching configuration information.
  • embodiments of the present application provide a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to cause a computer to execute a method for configuring switching configuration information.
  • the handover scenario category of the terminal is determined according to the cell measurement information sent by the terminal; the handover configuration policy corresponding to the handover scenario category is obtained, and the handover configuration information corresponding to the handover configuration policy is obtained; the handover configuration information is sent To the serving base station of the terminal, so that the serving base station makes a handover decision of the terminal according to the handover configuration information. Since the handover configuration information corresponds to the handover scene category of the terminal, it is avoided that the terminal performs cell handover too early or too late, and the accuracy of the cell handover is improved.
  • FIG. 1 exemplarily shows a flowchart of a method for configuring switching configuration information provided by an embodiment of the present application
  • FIG. 2 exemplarily shows a functional structure diagram of a network device provided by an embodiment of the present application
  • FIG. 3 exemplarily shows a hardware structure diagram of a network device provided by an embodiment of the present application.
  • first and second are only used for different descriptions, and should not be understood as implying or implying relative importance or implying the number of indicated technical features. Therefore, the features defined with “first”, “second”, and “second” may expressly or implicitly include one or more of the features, and in the description of the embodiments of the present application, unless otherwise stated, “at least one” ” means one or more than one.
  • Network equipment which is a device that provides wireless communication functions for the terminal, including but not limited to: gNB (next Generation nodeB, 5G base station node) in 5G, radio network controller (radio network controller, RNC) , Node B (node B, NB), base station controller (base station controller, BSC), base transceiver station (base transceiver station, BTS), home base station (for example, home evolved nodeB, or home node B, HNB), baseband Unit (BaseBand Unit, BBU), transmission point (transmitting and receiving point, TRP), transmitting point (transmitting point, TP), mobile switching center (Mobile Switching Center, MSC) and so on.
  • the base station in this application may also be a device that provides a wireless communication function for a terminal in other communication systems that may appear in the future.
  • a terminal is a device that can provide users with voice and/or data connectivity.
  • the terminal device includes a handheld device with a wireless connection function, a vehicle-mounted device, and the like.
  • terminal devices can be: mobile phones (mobile phones), tablet computers, notebook computers, PDAs, mobile Internet devices (MIDs), wearable devices, virtual reality (virtual reality, VR) devices, augmented reality (augmented reality (AR) equipment, wireless terminals in industrial control, wireless terminals in self-driving, wireless terminals in smart grid, wireless terminals in transportation safety A wireless terminal, a wireless terminal in a smart city, or a wireless terminal in a smart home, etc.
  • the base station uniformly configures various measurement reporting information and handover configuration information (such as offset value, delay time, etc.) for the access terminal during the configuration of indoor and outdoor co-frequency handover configuration information.
  • the unified handover configuration information is used for handover decision. Since the handover scene where the terminal is located is not subdivided, the base station cannot accurately identify the handover scene where the terminal is located, and cannot meet the differentiated requirements of the terminal. For example, in one case, when the indoor terminal is near the indoor window or passing by the window, and the signal in the area near the window is strong, the terminal does not need to switch the configuration information; in another case, when the terminal enters the building, the terminal needs to complete the configuration as soon as possible.
  • embodiments of the present application provide a method and apparatus for configuring handover configuration information.
  • the method realizes personalized configuration of the handover configuration information by classifying the handover scene where the terminal is located, and the handover configuration information configured by the base station corresponds to the handover scene category where the terminal is located. Specifically, the cell measurement information sent by the terminal is obtained, the handover scenario type of the terminal is determined according to the cell measurement information, the handover configuration policy corresponding to the handover scenario type and the handover configuration information corresponding to the handover configuration policy are obtained, and the handover configuration information is sent to the terminal.
  • the serving base station where it is located, so that the serving base station makes a handover decision according to the handover configuration information.
  • the method can accurately identify the handover scene category corresponding to the terminal, and obtain the handover configuration information corresponding to the handover scene category, so as to solve the personalized setting of the handover configuration information in the multiple handover scene, thereby maintaining the stable operation of the network.
  • a trained multi-class model may be used to determine the switching scene category of the terminal. Specifically, the cell measurement information sent by the terminal is input into the multi-classification model as input data, and the output of the multi-classification model is the handover scene category to which the terminal belongs.
  • the multi-classification model can be pre-trained, and the training process includes: acquiring cell measurement information of at least one terminal in at least one cell, using the cell measurement information of at least one terminal as an input parameter of the multi-classification model, and extracting the characteristics of the cell measurement information of at least one terminal
  • the extracted feature vector is clustered according to the preset number of clusters, and the switching scene category of at least one terminal is respectively determined to obtain a multi-classification model.
  • the cell measurement information includes reference signal receiving power (Reference Signal Receiving Power, RSRP) and/or reference signal receiving quality (Reference Signal Receiving Quality, RSRQ) of at least one cell where the terminal is located, and at least one cell where the terminal is located.
  • RSRP Reference Signal Receiving Power
  • RSRQ Reference Signal Receiving Quality
  • RSRP is the linear average value of the signal power received on the resource element carrying the cell-specific reference signal on the designated measurement frequency band.
  • the acquired cell measurement information includes repeated cell measurement information and abnormal cell measurement information.
  • Repeating the cell measurement information means that the acquired cell measurement information has the same parameter values, that is, the cell identifiers, RSRPs, etc. measured by the terminal are all the same.
  • Abnormal cell measurement information refers to the cell measurement information sample sent by the terminal in a single time due to base station failure, coding error, etc. is incomplete or has abnormal characters. Therefore, repeated cell measurement information and abnormal cell measurement information in the acquired cell measurement information can be eliminated, thereby ensuring the accuracy of the multi-classification model clustering.
  • Table 1 exemplarily shows the RSRP samples obtained by the embodiments of the present application by taking the cell measurement information as the RSRP as the training sample as an example.
  • sample x1 may represent the RSRP of at least one cell (including the current cell and neighboring cells) reported by terminal 1 in the first reporting period
  • sample x2 may represent at least one cell (including this cell) reported by terminal 1 in the second reporting period
  • sample xm may represent the RSRP of at least one cell (including the current cell and the neighboring cell) reported by the terminal m in the first reporting period.
  • the handover scene category of the at least one terminal is respectively determined.
  • the number of clusters of the multi-classification model can be preset, the feature vector of the cell measurement information of at least one terminal is extracted, the feature vector is clustered according to the set number of clusters, and the handover scene category of the at least one terminal is determined respectively. , to get the trained multi-classification model.
  • the feature vector is to transform the original data into a vector that can not only represent the original information but also facilitate algorithm learning through data transformation.
  • the feature vector can directly describe the sample information to the multi-class model, thereby improving the multi-class model clustering results. accuracy.
  • the scale of the communication network is huge, and the base station cells include outdoor macro cells and indoor cells. If the cell measurement information is directly trained, the algorithm complexity will increase sharply and the handover scene classification will be inaccurate.
  • feature processing may be performed on the cell measurement information first, and the feature processing includes dimension reduction compression and data scaling.
  • Dimensionality reduction compression is a general term for a series of dimensionality reduction algorithms. It compresses high-dimensional and complex sample data into low-dimensional sample data, and the loss of sample information is small, which is a way of information enrichment.
  • the algorithms for dimensionality reduction and compression for cell measurement information in the embodiments of the present application include but are not limited to: Principal Components Analysis (PCA), Singular Value Decomposition (SVD), t-distributed random neighborhood embedding (t -distributed Stochastic Nneighbor Embedding, t-SNE), Multi-Dimensional Scaling (MDS), Isometric Feature Mapping (ISOMAP), Locally Linear Embedding (LLE), Encoding-Decoding ( Encoder-Decoder) model.
  • PCA Principal Components Analysis
  • SVD Singular Value Decomposition
  • MDS Multi-Dimensional Scaling
  • ISOMAP Isometric Feature Mapping
  • LLE Locally Linear
  • the feature processing process is described below by taking the cell measurement information as RSRP as a training sample as an example.
  • x is the original eigenvalue of the RSRP sample
  • x′ is the standardized result
  • ⁇ is the feature mean
  • ⁇ is the feature variance
  • Normalization compresses the original eigenvalues into the [0,1] range, and its value range is more defined than normalization.
  • the normalization formula is shown in formula (2):
  • x is the original eigenvalue of RSRP
  • x′ is the normalized result
  • x min and x max represent the minimum and maximum value of the original eigenvalue of RSRP, respectively.
  • an unsupervised clustering algorithm can be used for clustering, and the clustering algorithm includes but is not limited to Self-organizing Maps (SOM), Gaussian Mixture Model (GMM), K-means clustering algorithm ( K-means Clustering Algorithm, K-means), X-means clustering algorithm, Density-Based Spatial Clustering of Applications with Noise (DBSCAN), balanced iterative clustering method based on hierarchical structure (Balanced Iterative Reducing and Clustering using Hierarchies, BIRCH), Ordering Point to Idenfy the Cluster Structure (OPTICS), Hierarchical Clustering (Hierarchical Clustering), Statistical INformation Grid (STING), Spectral Clustering (spectral clustering).
  • SOM Self-organizing Maps
  • GMM Gaussian Mixture Model
  • K-means clustering algorithm K-means Clustering Algorithm, K-means
  • X-means clustering algorithm Density-Based Spatial Clustering of Applications with Noise (DBSCAN), balanced
  • clustering can be performed in stages according to the above single clustering algorithm or multiple clustering algorithms.
  • Multi-stage clustering includes but is not limited to the combination of SOM and X-means, the combination of SOM and DBSCAN, and the combination of BIRCH and DBSCAN.
  • the clustering parameters are adjusted according to the clustering algorithm index values such as Calinski-Harabasz and silhouette coefficient, and the switching scene category of at least one terminal is respectively determined.
  • the clustering algorithm index formula is shown in formula (3) and formula (4):
  • CH represents the Calinski-Harabasz index
  • n represents the number of clusters
  • k represents the current class
  • trB(k) represents the trace of the inter-class dispersion matrix
  • trW(k) represents the trace of the intra-class dispersion matrix
  • s represents the contour Coefficient
  • D out (i) represents the average distance between point i and out-of-class points
  • D in (i) represents the average distance between point i and in-class points
  • i represents the ith sample.
  • the corresponding relationship between the handover scenario class and the handover configuration strategy can also be set, and a relationship table between the handover scenario class and the handover configuration strategy is obtained, and different configuration strategies correspond to different handover configuration information.
  • the handover scene category of at least one terminal is determined through the multi-classification model, and terminal groups can be divided according to the handover scene category. The terminals in the same terminal group belong to the same handover scene category, so at least one terminal group can be obtained.
  • the following takes the first terminal group as an example to describe determining the handover configuration policy corresponding to the handover scene category corresponding to the first terminal group.
  • the first terminal group is any terminal group in at least one terminal group, and the first terminal group corresponds to the first switching scene category.
  • the average switching times M of the terminals in the first terminal group per unit time may be determined according to the historical switching records of the terminals in the first terminal group.
  • the number of time periods for the count of switching times can be preset, and the total switching times of the terminals in the first terminal group under the first switching scenario category and the first terminal group are counted according to the historical switching records of the terminals in the first terminal group.
  • the number of internal terminals, the calculation formula of the average number of handovers M per unit time of the terminals in the first terminal group under the first switching scenario category is shown in formula (5):
  • the handover configuration policy corresponding to the first handover scene category After determining the average handover times M of the terminals in the first terminal group under the first handover scene category per unit time, determine the handover configuration policy corresponding to the first handover scene category according to the average handover times M. Specifically, it is judged whether the average switching times M of the terminals in the first terminal group in the first switching scene category per unit time is within the set interval [Ua, U], and if so, it is determined that the first switching scene category corresponds to the first Switching the configuration policy, otherwise, it is determined that the first switching scene category corresponds to the second switching configuration policy.
  • U is the maximum value of the average handover times per unit time of the terminals in each terminal group in the at least one terminal group
  • a is greater than 0 and less than U
  • a is an empirical value.
  • a relationship table between the handover scene category and the handover configuration strategy is obtained.
  • different switching scene categories may correspond to the same switching configuration strategy.
  • the first switching scene category is that the terminal enters the building from outside the building
  • the second switching scene category is that the terminal enters the outdoor room from indoors
  • both the first switching scene category and the second switching scene category correspond to the first switching configuration policy.
  • the handover configuration strategy includes a first handover configuration strategy or a second handover configuration strategy
  • the first handover configuration strategy and the second handover configuration strategy are applicable to different scenarios under indoor and outdoor same-frequency handover.
  • indoor and outdoor co-frequency switching can be divided into two situations: the first situation is to enter and exit building areas such as building gates. In order to avoid switching in the case of no signal or poor signal, the terminal in this situation needs to switch quickly.
  • the second situation is to move in the indoor remaining area except the first situation, the remaining area is covered by indoor cells, in order to prevent adjacent cell interference and physical resource blocks (Physical Resource Block, PRB) ) waste, the terminal in this situation needs to delay the handover, which corresponds to the second handover configuration policy.
  • PRB Physical Resource Block
  • the network device may configure corresponding handover configuration information for the first handover configuration policy and the second handover configuration policy.
  • the first handover configuration policy corresponds to the first handover configuration information
  • the second handover configuration policy corresponds to the second handover configuration information
  • the handover decision condition corresponding to the first handover configuration information is lower than the handover decision condition corresponding to the second handover configuration information.
  • the terminal can perform cell handover; if the second handover configuration information is used for handover decision, the handover condition is not satisfied , the terminal cannot perform cell handover.
  • the first handover configuration information and the second handover configuration information respectively include at least one of the delay time and the handover offset value of the cell where the terminal is located, and the delay time and the handover offset value of the neighboring cells of the cell where the terminal is located. item, the first handover configuration information and the second handover configuration information satisfy at least one of the following conditions:
  • the delay time of the cell where the terminal is located in the first handover configuration information is less than the delay time of the cell where the terminal is located in the second handover configuration information
  • the handover offset value of the cell where the terminal is located in the first handover configuration information is smaller than the handover offset value of the cell where the terminal is located in the second handover configuration information
  • the delay time of the neighboring cell of the cell where the terminal is located in the first handover configuration information is less than the delay time of the cell where the terminal is located in the second handover configuration information
  • the handover offset value of the neighboring cell of the cell where the terminal is located in the first handover configuration information is smaller than the handover offset value of the cell where the terminal is located in the second handover configuration information.
  • FIG. 1 exemplarily shows a flowchart of a method for configuring and switching configuration information provided by an embodiment of the present application. As shown in Figure 1, the process is performed by network devices and includes the following steps:
  • S101 Acquire cell measurement information sent by a terminal.
  • the terminal may report the cell measurement information through periodic reporting or event triggering.
  • the network device may acquire cell measurement information sent by the terminal according to a set period, and/or acquire an A3 measurement report of the terminal, where the A3 measurement report carries the cell measurement information.
  • the A3 measurement report is sent when the terminal triggers the A3 event and performs handover.
  • the A3 event indicates that the quality of the adjacent cell is better than that of the serving cell.
  • the A3 event can be used to determine whether the terminal is handed over to the adjacent cell.
  • the cell measurement information includes RSRP and/or RSRQ of the cell where the terminal is located, and PSRP and/or RSRQ of neighboring cells of the cell where the terminal is located.
  • RSRP is the linear average value of the signal power received on the resource element carrying the cell-specific reference signal on the designated measurement frequency band.
  • S102 Determine the handover scene category of the terminal according to the cell measurement information.
  • the switching scene category may be determined according to the pre-trained multi-classification model. Specifically, the cell measurement information is used as an input parameter of the multi-classification model, the feature vector of the cell measurement information is extracted, and the feature vector is clustered to obtain the handover scene category corresponding to the terminal.
  • the training process of the multi-classification model refer to the above-mentioned embodiment, which will not be repeated here.
  • the multi-class model After inputting the cell measurement information into the trained multi-class model, the multi-class model outputs the terminal's handover scene category as the second handover scene category, and the second handover scene category is the terminal entering indoors from outdoors.
  • S103 Acquire the handover configuration policy corresponding to the handover scene category, and obtain the handover configuration information corresponding to the handover configuration policy.
  • the relationship table between the switching scene category and the switching configuration strategy according to the switching scene category after determining the switching scene category of the terminal, query the relationship table between the switching scene category and the switching configuration strategy according to the switching scene category, obtain the switching configuration strategy corresponding to the switching scene category, and obtain the switching configuration information corresponding to the switching configuration strategy.
  • the handover scene category and handover configuration strategy relationship table records the corresponding relationship between the handover scene category and the handover configuration strategy. The process of establishing the handover scene category and handover configuration strategy relationship table refers to the above embodiment, which is not repeated here.
  • S104 Send the handover configuration information to the serving base station of the terminal.
  • the serving base station After sending the handover configuration information to the serving base station of the terminal, the serving base station will make a handover decision of the terminal according to the handover configuration information.
  • the network device sends the first handover configuration information to the serving base station of the terminal, and the serving base station makes a handover decision of the terminal according to the first handover configuration information. switching speed.
  • the cell measurement information of at least one terminal in at least one cell is clustered, and the handover scene category of at least one terminal is respectively determined to obtain a multi-classification model, and the terminals in the same terminal group belong to the same handover scene category , determining a handover configuration strategy corresponding to the handover scene category corresponding to each terminal group in the at least one terminal group, and obtaining a relationship table between the handover scene category and the handover configuration strategy.
  • the handover scene category of the terminal Based on the multi-classification model, determine the handover scene category of the terminal according to the cell measurement information reported by the terminal, query the handover scene category and handover scene configuration policy table according to the determined handover scene category, and obtain the handover configuration policy corresponding to the handover scene category acquisition of the terminal. And obtain the handover configuration information corresponding to the handover configuration policy, and send the handover configuration information to the serving base station where the terminal is located, so as to realize the personalized setting of the handover configuration information of the serving cell where the terminal is located under the multiple handover scenario categories, thereby maintaining network stability. run.
  • the embodiments of the present application provide a network device, which can implement the functions in the foregoing embodiments.
  • the network device includes an acquisition module 201 , a category determination module 202 , and a transmission module 203 .
  • an acquisition module 201 configured to acquire cell measurement information sent by a terminal
  • a category determination module 202 configured to determine the handover scene category of the terminal according to the cell measurement information
  • the obtaining module 201 is further configured to obtain the handover configuration policy corresponding to the handover scene category, and obtain the handover configuration information corresponding to the handover configuration policy;
  • the sending module 203 is configured to send the handover configuration information to the serving base station of the terminal.
  • the handover configuration strategy is the first handover configuration strategy or the second handover configuration strategy
  • the first handover configuration policy corresponds to the first handover configuration information
  • the second handover configuration policy corresponds to the second handover configuration information
  • the handover decision condition corresponding to the first handover configuration information is lower than the handover decision condition corresponding to the second handover configuration information.
  • the first handover configuration information and the second handover configuration information respectively include at least one of the delay time and the handover offset value of the cell where the terminal is located, and the delay time and the handover offset value of the neighboring cells of the cell where the terminal is located. item;
  • the first handover configuration information and the second handover configuration information satisfy at least one of the following conditions:
  • the delay time of the cell where the terminal is located in the first handover configuration information is less than the delay time of the cell where the terminal is located in the second handover configuration information
  • the handover offset value of the cell where the terminal is located in the first handover configuration information is smaller than the handover offset value of the cell where the terminal is located in the second handover configuration information
  • the delay time of the neighboring cell of the cell where the terminal is located in the first handover configuration information is less than the delay time of the cell where the terminal is located in the second handover configuration information
  • the handover offset value of the neighboring cell of the cell where the terminal is located in the first handover configuration information is smaller than the handover offset value of the cell where the terminal is located in the second handover configuration information.
  • the obtaining module 201 is specifically configured to: obtain cell measurement information sent by the terminal according to a set period; and/or obtain an A3 measurement report of the terminal, where the A3 measurement report carries the cell measurement information.
  • the category determination module 202 is specifically configured to:
  • the feature vectors are clustered to obtain the switching scene category of the terminal.
  • the obtaining module 201 is further used for:
  • the relationship table between the switching scene category and the switching configuration strategy is queried according to the switching scene category, and the switching configuration strategy corresponding to the switching scene category is obtained.
  • it also includes a training module and a relationship table determination module;
  • the training module is used for acquiring cell measurement information of at least one terminal in at least one cell, and according to the cell measurement information of at least one terminal, respectively determining the handover scenario category of at least one terminal, and obtaining at least one terminal group, the The terminals belong to the same switching scene category, the first terminal group is any one terminal group in at least one terminal group, and the first terminal group corresponds to the first switching scene category;
  • the relationship table determination module is used to determine the average switching times of the terminals in the first terminal group per unit time according to the historical switching records of the terminals in the first terminal group, and determine the corresponding switching scene category according to the average switching times.
  • a handover configuration strategy according to the handover configuration strategy corresponding to the handover scene category corresponding to each terminal group in the at least one terminal group, a relationship table between the handover scene category and the handover configuration strategy is obtained.
  • the relationship table determination module is specifically used for:
  • the first switching scene category corresponds to the first switching configuration strategy; otherwise, it is determined that the first switching scene category corresponds to the first switching configuration strategy.
  • the second handover configuration strategy wherein U is the maximum value of the average number of handovers per unit time corresponding to at least one terminal group, and a is greater than 0 and less than U.
  • an embodiment of the present application further provides a network device, which can implement the method in the foregoing embodiment.
  • FIG. 3 exemplarily shows a schematic structural diagram of a network side device in an embodiment of the present application.
  • the network side device may include: a processor 301 , a memory 302 , a transceiver 303 and a bus interface 304 .
  • the processor 301 is responsible for managing the bus architecture and general processing, and the memory 302 can store data used by the processor 301 when performing operations.
  • the transceiver 303 is used to receive and transmit data under the control of the processor 301 .
  • the bus architecture may include any number of interconnected buses and bridges, in particular one or more processors represented by processor 301 and various circuits of memory represented by memory 302 linked together.
  • the bus architecture can also link together various other circuits such as peripherals, pressure regulators, and power management circuits, which are well known in the art and will not be discussed further herein describe.
  • the bus interface provides the interface.
  • the processor 301 is responsible for managing the bus architecture and general processing, and the memory 302 may store data used by the processor 301 in performing operations.
  • the processes disclosed in the embodiments of the present application may be applied to the processor 301 or implemented by the processor 301 .
  • each step of the signal processing flow can be completed by an integrated logic circuit of hardware in the processor 301 or an instruction in the form of software.
  • the processor 301 may be a general-purpose processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component, and may implement or execute the embodiments of the present application.
  • a general purpose processor may be a microprocessor or any conventional processor or the like.
  • the steps of the methods disclosed in conjunction with the embodiments of the present application may be directly embodied as executed by a hardware processor, or executed by a combination of hardware and software modules in the processor.
  • the software modules may be located in random access memory, flash memory, read-only memory, programmable read-only memory or electrically erasable programmable memory, registers and other storage media mature in the art.
  • the storage medium is located in the memory 302, and the processor 301 reads the information in the memory 302, and completes the steps of the signal processing flow in combination with its hardware.
  • the processor 301 is configured to read the computer instructions in the memory 302 and execute the functions implemented by the network device in the process shown in FIG. 1 .
  • Embodiments of the present application further provide a computer-readable storage medium, where the computer-readable storage medium stores computer-executable instructions, and the computer-executable instructions are used to make the computer execute the method executed by the network device in the foregoing embodiments.
  • the embodiments of the present application may be provided as a method, a system, or a computer program product. Accordingly, the present application may take the form of an entirely hardware embodiment, an entirely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, the present application may employ one or more computer-usable storage media (including, but not limited to, magnetic disk memory, CD-ROM (Compact Disc Read-Only Memory, Compact Disc Read-Only Memory) that contains computer-usable program code in it. , optical storage, etc.) in the form of a computer program product.
  • computer-usable storage media including, but not limited to, magnetic disk memory, CD-ROM (Compact Disc Read-Only Memory, Compact Disc Read-Only Memory) that contains computer-usable program code in it. , optical storage, etc.
  • These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory result in an article of manufacture comprising instruction means, the instructions
  • the apparatus implements the functions specified in the flow or flow of the flowcharts and/or the block or blocks of the block diagrams.

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Abstract

本申请实施例提供一种配置切换配置信息的方法及装置。该方法包括：获取终端发送的小区测量信息；根据小区测量信息，确定终端的切换场景类别；获取与切换场景类别对应的切换配置策略，并获取与切换配置策略对应的切换配置信息；将切换配置信息发送给终端的服务基站。由于切换配置信息与终端的切换场景类别相对应，从而实现配置信息的个性化配置。

Description

一种配置切换配置信息的方法及装置
相关申请的交叉引用
本申请要求在2020年09月25日提交中国专利局、申请号为202011024053.9、申请名称为“一种配置切换配置信息的方法及装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及通信技术领域，尤其涉及一种配置切换配置信息的方法及装置。
背景技术
目前4G、5G网络中，室内外同频切换配置信息的配置过程一般为：基站为接入终端统一配置各种测量上报信息及切换配置信息(比如偏移值、迟滞时间等)，终端按照基站配置的测量上报信息进行测量并上报，基站按照统一的切换配置信息对终端进行切换判决，从而完成室内外同频切换过程。基于上述过程，基站针对小区内的所有终端采用相同的切换配置信息进行切换判决，因切换配置信息与终端所在的切换场景不适配而导致终端过迟或过早的进行小区切换。
发明内容
本申请实施例提供一种配置切换配置信息的方法及装置，用以提高小区切换的准确性。
第一方面，本申请实施例提供一种配置切换配置信息的方法，包括：
获取终端发送的小区测量信息；
根据小区测量信息，确定终端的切换场景类别；
获取与切换场景类别对应的切换配置策略，并获取与切换配置策略对应 的切换配置信息；
将切换配置信息发送给终端的服务基站。
本申请的实施例中，切换配置策略为第一切换配置策略或第二切换配置策略；
第一切换配置策略对应第一切换配置信息，第二切换配置策略对应第二切换配置信息，第一切换配置信息对应的切换判决条件低于第二切换配置信息对应的切换判决条件。
本申请的实施例中，第一切换配置信息和第二切换配置信息分别包括终端所在小区的迟滞时间、切换偏移值以及终端所在小区的邻小区的迟滞时间、切换偏移值中的至少一项；
第一切换配置信息和第二切换配置信息满足以下条件中的至少一种：
第一切换配置信息中终端所在小区的迟滞时间小于第二切换配置信息中终端所在小区的迟滞时间；
第一切换配置信息中终端所在小区的切换偏移值小于第二切换配置信息中终端所在小区的切换偏移值；
第一切换配置信息中终端所在小区的邻小区的迟滞时间小于第二切换配置信息中终端所在小区的迟滞时间；
第一切换配置信息中终端所在小区的邻小区的切换偏移值小于第二切换配置信息中终端所在小区的切换偏移值。
本申请的实施例中，获取终端发送的小区测量信息，包括：
获取终端按照设定周期发送的小区测量信息；和/或
获取终端的A3测量报告，A3测量报告携带小区测量信息。
本申请的实施例中，根据小区测量信息，确定终端的切换场景类别，包括：
提取小区测量信息的特征向量；
对特征向量进行聚类，得到终端的切换场景类别。
本申请的实施例中，获取与切换场景类别对应的切换配置策略，包括：
根据切换场景类别查询切换场景类别与切换配置策略关系表，得到与切换场景类别对应的切换配置策略。
本申请的实施例中，还包括；
获取至少一个小区内的至少一个终端的小区测量信息样本，并根据至少一个终端的小区测量信息，分别确定至少一个终端的切换场景类别，得到至少一个终端组，同一终端组内的终端属于同一切换场景类别，第一终端组为至少一个终端组中的任一一个终端组，第一终端组对应第一切换场景类别；
根据第一终端组内的终端的历史切换记录，确定第一终端组内的终端在单位时间内的平均切换次数，并根据平均切换次数确定第一切换场景类别对应的切换配置策略；
根据至少一个终端组中各终端组对应的切换场景类别所对应的切换配置策略，得到切换场景类别与切换配置策略关系表。
本申请的实施例中，根据终端在单位时间内的平均切换次数，确定各切换场景类别对应的切换配置策略，包括：
若第一终端组内的终端在单位时间内的平均切换次数位于设定区间[U-a，U]内，则确定第一切换场景类别对应第一切换配置策略，否则，确定第一切换场景类别对应第二切换配置策略；其中U为至少一个终端组对应的单位时间内的平均切换次数的极大值，a大于0且小于U。
第二方面，本申请实施例提供一种网络设备，包括：
获取模块，用于获取终端发送的小区测量信息；
类别确定模块，用于根据小区测量信息，确定终端的切换场景类别；
获取模块，还用于获取与切换场景类别对应的切换配置策略，并获取与切换配置策略对应的切换配置信息；
发送模块，用于将切换配置信息发送给终端的服务基站。
本申请的实施例中，切换配置策略为第一切换配置策略或第二切换配置策略；
第一切换配置策略对应第一切换配置信息，第二切换配置策略对应第二 切换配置信息，第一切换配置信息对应的切换判决条件低于第二切换配置信息对应的切换判决条件。
本申请的实施例中，第一切换配置信息和第二切换配置信息分别包括终端所在小区的迟滞时间、切换偏移值以及终端所在小区的邻小区的迟滞时间、切换偏移值中的至少一项；
第一切换配置信息和第二切换配置信息满足以下条件中的至少一种：
第一切换配置信息中终端所在小区的迟滞时间小于第二切换配置信息中终端所在小区的迟滞时间；
第一切换配置信息中终端所在小区的切换偏移值小于第二切换配置信息中终端所在小区的切换偏移值；
第一切换配置信息中终端所在小区的邻小区的迟滞时间小于第二切换配置信息中终端所在小区的迟滞时间；
第一切换配置信息中终端所在小区的邻小区的切换偏移值小于第二切换配置信息中终端所在小区的切换偏移值。
本申请的实施例中，获取模块具体用于：
获取终端按照设定周期发送的小区测量信息；和/或
获取终端的A3测量报告，A3测量报告携带小区测量信息。
本申请的实施例中，类别确定模块具体用于：
提取小区测量信息的特征向量；
对特征向量进行聚类，得到终端的切换场景类别。
本申请的实施例中，获取模块还用于：
根据切换场景类别查询切换场景类别与切换配置策略关系表，得到与切换场景类别对应的切换配置策略。
本申请的实施例中，还包括训练模块、关系表确定模块；
训练模块，用于获取至少一个小区内的至少一个终端的小区测量信息，并根据至少一个终端的小区测量信息，分别确定至少一个终端的切换场景类别，得到至少一个终端组，同一终端组内的终端属于同一切换场景类别，第 一终端组为至少一个终端组中的任一一个终端组，第一终端组对应第一切换场景类别；
关系表确定模块，用于根据第一终端组内的终端的历史切换记录，确定第一终端组内的终端在单位时间内的平均切换次数，并根据平均切换次数确定第一切换场景类别对应的切换配置策略；根据至少一个终端组中各终端组对应的切换场景类别所对应的切换配置策略，得到切换场景类别与切换配置策略关系表。
本申请的实施例中，关系表确定模块用于：
若第一终端组内的终端在单位时间内的平均切换次数位于设定区间[U-a，U]内，则确定第一切换场景类别对应第一切换配置策略，否则，确定第一切换场景类别对应第二切换配置策略；其中U为至少一个终端组对应的单位时间内的平均切换次数的极大值，a大于0且小于U。
第三方面，本申请实施例提供一种网络设备，包括处理器、存储器、收发机；
收发机，在处理器的控制下进行数据的接收和发送；
存储器，存储计算机指令；
处理器，用于读取计算机指令，执行配置切换配置信息的方法。
第四方面，本申请实施例提供一种计算机可读存储介质，计算机可读存储介质存储有计算机可执行指令，计算机可执行指令用于使计算机执行配置切换配置信息的方法。
本申请的上述实施例中，根据终端发送的小区测量信息确定终端的切换场景类别；获取与切换场景类别对应的切换配置策略，并获取与切换配置策略对应的切换配置信息；将切换配置信息发送给终端的服务基站，使得服务基站根据切换配置信息进行终端的切换判决。由于切换配置信息是与终端的切换场景类别对应的，避免终端过早或过迟进行小区切换，提高了小区切换的准确性。
附图说明
为了更清楚地说明本申请实施例的技术方案，下面将对本申请实施例中所需要使用的附图作简单地介绍，显而易见地，下面所介绍的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1示例性示出了本申请实施例提供的配置切换配置信息的方法流程图；
图2示例性示出了本申请实施例提供的网络设备的功能结构图；
图3示例性示出了本申请实施例提供的网络设备的硬件结构图。
具体实施方式
为了使本申请的目的、技术方案和优点更加清楚，下面将结合附图对本申请作进一步地详细描述，显然，所描述的实施例仅仅是本申请一部份实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例，都属于本申请保护的范围。
术语“第一”、“第二”仅用于区别描述，而不能理解为暗示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”、的特征可以明示或者隐含地包括一个或者更多个该特征，在本申请实施例的描述中，除非另有说明，“至少一项”的含义是一项或一项以上。
以下对本申请实施例中的部分用语进行解释说明，以便于本领域技术人员理解。
(1)本申请实施例中，名词“网络”和“系统”经常交替使用，但本领域的技术人员可以理解其含义。
(2)本申请实施例中术语“多个”是指两个或两个以上，其它量词与之类似。
(3)“和/或”，描述关联对象的关联关系，表示可以存在三种关系，例如，A和/或B，可以表示：单独存在A，同时存在A和B，单独存在B这三种情 况。字符“/”一般表示前后关联对象是一种“或”的关系。
(4)网络设备，是一种为所述终端提供无线通信功能的设备，包括但不限于：5G中的gNB(next Generation nodeB，5G基站节点)、无线网络控制器(radio network controller，RNC)、节点B(node B，NB)、基站控制器(base station controller，BSC)、基站收发台(base transceiver station，BTS)、家庭基站(例如，home evolved nodeB，或home node B，HNB)、基带单元(BaseBand Unit，BBU)、传输点(transmitting and receiving point，TRP)、发射点(transmitting point，TP)、移动交换中心(Mobile Switching Center，MSC)等。本申请中的基站还可以是未来可能出现的其他通信系统中为终端提供无线通信功能的设备。
(5)终端，是一种可以向用户提供语音和/或数据连通性的设备。例如，终端设备包括具有无线连接功能的手持式设备、车载设备等。目前，终端设备可以是：手机(mobile phone)、平板电脑、笔记本电脑、掌上电脑、移动互联网设备(mobile internet device，MID)、可穿戴设备，虚拟现实(virtual reality，VR)设备、增强现实(augmented reality，AR)设备、工业控制(industrial control)中的无线终端、无人驾驶(self-driving)中的无线终端、智能电网(smart grid)中的无线终端、运输安全(transportation safety)中的无线终端、智慧城市(smart city)中的无线终端，或智慧家庭(smart home)中的无线终端等。
在室内外同频组网场景中，室内外同频切换配置信息的配置过程中基站为接入终端统一配置各种测量上报信息及切换配置信息(比如偏移值、迟滞时间等)，基站按照统一的切换配置信息进行切换判决。由于未对终端所在的切换场景进行细分，基站无法精准地识别终端所在的切换场景，无法满足终端的差异性需求。比如，一种情形下，室内终端在室内窗边或经过窗边，且窗边区域信号较强时，终端无需切换配置信息；另一种情形下，当终端进入建筑物时，终端需尽快完成配置信息的切换以避免在无信号或信号较差的情况下进行切换。针对第一种情形，可降低终端的切换速度，针对第二种情形，可增加终端的切换速度，在基站统一配置切换配置信息的情况下，无法兼顾 上述两种情形下的终端个性化切换配置信息的配置。
针对上述问题，本申请实施例提供一种配置切换配置信息的方法及装置。该方法通过对终端所在的切换场景进行分类，基站配置的切换配置信息与终端所在的切换场景类别相对应，实现切换配置信息的个性化配置。具体的，获取终端发送的小区测量信息，根据小区测量信息确定终端的切换场景类别，获取与切换场景类别对应的切换配置策略以及与切换配置策略对应的切换配置信息，将切换配置信息发送给终端所在的服务基站，使得服务基站根据切换配置信息进行切换判决。该方法能够准确识别终端对应的切换场景类别，获取切换场景类别对应的切换配置信息，从而解决多元切换场景下切换配置信息的个性化设置，进而维持网络稳定运行。
本申请的一些实施例中，可使用训练好的多分类模型确定终端的切换场景类别。具体地，将终端发送的小区测量信息作为输入数据输入到该多分类模型，该多分类模型的输出即为该终端所属的切换场景类别。
可预先训练多分类模型，训练过程包括：获取至少一个小区内至少一个终端的小区测量信息，将至少一个终端的小区测量信息作为多分类模型的输入参数，提取至少一个终端的小区测量信息的特征向量，根据预先设置的聚类数对提取的特征向量进行聚类，分别确定至少一个终端的切换场景类别，得到多分类模型。
其中，小区测量信息包括至少一个终端所在小区的参考信号接收功率(Reference Signal Receiving Power，RSRP)和/或参考信号接收质量(Reference Signal Receiving Quality，RSRQ)，以及至少一个终端所在小区的邻小区的PSRP和/或RSRQ。RSRP是指定测量频带上，承载小区专属参考信号的资源粒子上接收到的信号功率的线性平均值。
在一种可选的实施方式中，获取的小区测量信息中包括重复小区测量信息以及异常小区测量信息。重复小区测量信息是指是获取的小区测量信息中的参数值一样，即终端所测的小区标识、RSRP等均一致。异常小区测量信息是指由于基站故障、编码错误等原因而造成的终端单次发送的小区测量信息 样本不完整或存在异常字符。因此，可剔除获取到小区测量信息中的重复小区测量信息和异常小区测量信息，从而保证多分类模型聚类的准确性。
表1以小区测量信息为RSRP作为训练样本为例，示例性示出了本申请实施例获取的RSRP样本。
表1、RSRP样本
Figure PCTCN2021117426-appb-000001
其中，样本x1可表示终端1在第一上报周期内上报的至少一个小区(包括本小区和邻小区)的RSRP，样本x2可表示终端1在第二上报周期内上报的至少一个小区(包括本小区和邻小区)的RSRP…样本xm可表示终端m在第一上报周期内上报的至少一个小区(包括本小区和邻小区)的RSRP。
根据至少一个终端的小区测量信息，分别确定至少一个终端的切换场景类别。具体实施时，可预先设定多分类模型的聚类数，提取至少一个终端的小区测量信息的特征向量，按设定聚类数对特征向量进行聚类，分别确定至少一个终端的切换场景类别，得到训练好的多分类模型。
聚类过程中，特征向量为通过数据变换将原始数据转化为既能代表原始信息又便于算法学习的向量，特征向量可以直接地向多分类模型描述样本信息，从而提高多分类模型聚类结果的准确性。
目前，通信网络规模庞大，基站小区包括室外宏站以及室内小区，如果直接对小区测量信息进行训练将导致算法复杂度陡增且切换场景分类不准确。 在一种可选的实施方式中，可先对小区测量信息进行特征处理，特征处理包括降维压缩和数据放缩。
降维压缩是一系列降维算法的总称，将高维复杂的样本数据压缩到低维度的样本数据，且样本信息的损失量较小，是一种信息浓缩的方式。本申请实施例中对小区测量信息进行降维压缩的算法包括但不限于：主成分分析(Principal Components Analysis，PCA)、奇异值分解(Singular Value Decomposition，SVD)、t分布随机邻域嵌入(t-distributed Stochastic Nneighbor Embedding，t-SNE)、多维标注分析(Multi-Dimensional Scaling，MDS)、等距特征映射(Isometric Feature Mapping，ISOMAP)、局部线性嵌入(Locally Linear Embedding，LLE)、编码-解码(Encoder-Decoder)模型。本申请的实施例中，降维后的小区测量信息的特征维度降低，并且降维结果可随数据冗余程度的不同而调整，可以随着网络系统的改变而及时更新。
下面以小区测量信息为RSRP作为训练样本为例描述特征处理过程。
由于RSRP的取值范围为[-140dBm，-44dBm]，取值范围较大，导致多分类模型训练时间较长且聚类结果不稳定。因此，本申请的实施例中采用标准化和归一化的方式对RSRP样本进行数据放缩。标准化能够去量纲，变换后每个RSRP样本的原始特征值呈现均值为0、标准差为1的正态分布。正态分布公式如公式(1)所示：
Figure PCTCN2021117426-appb-000002
其中，x为RSRP样本的原始特征值，x′为标准化结果，μ为特征均值，σ为特征方差。
归一化将原始特征值压缩到[0,1]范围内，相比于标准化而言，其值域范围更加明确。归一化公式如公式(2)所示：
Figure PCTCN2021117426-appb-000003
其中，x为RSRP的原始特征值，x′为归一化结果，x min和x max分别代表RSRP的原始特征值的最小值和最大值。
需说明的是，上述降维压缩和数据放缩同样适用于RSRQ样本。
提取完小区测量信息的特征向量后，对特征向量进行聚类，分别确定至少一个终端的切换场景类别。其中，可采用无监督的聚类算法进行聚类，聚类算法包括但不限于自组织映射(Self-organizing Maps，SOM)、高斯混合模型(Gaussian Mixture Model，GMM)，K均值聚类算法(K-means Clustering Algorithm，K-means)、X均值聚类算法、基于密度的噪声应用空间聚类(Density-Based Spatial Clustering of Applications with Noise，DBSCAN)、基于层次结构的平衡迭代聚类方法(Balanced Iterative Reducing and Clustering using Hierarchies，BIRCH)、确定簇结构的排序点(Ordering Point to Idenfy the Cluster Structure，OPTICS)、层次聚类(Hierarchical Clustering)、统计信息网络(STatistical INformation Grid，STING)、谱聚类(spectral clustering)。具体实施时，可根据上述单聚类算法或多种聚类算法分阶段聚类，多阶段聚类包括但不限于SOM和X-means结合、SOM和DBSCAN结合、BIRCH和DBSCAN结合。通过Calinski-Harabasz、轮廓系数等聚类算法指标值调整聚类参数，分别确定至少一个终端的切换场景类别，聚类算法指标公式如公式(3)和公式(4)所示：
Figure PCTCN2021117426-appb-000004
Figure PCTCN2021117426-appb-000005
式中，CH表示Calinski-Harabasz指标，n表示聚类数，k表示当前类，trB(k)表示类间离差矩阵的迹，trW(k)表示类内离差矩阵的迹；s表示轮廓系数，D out(i)表示i点与类外点的平均距离，D in(i)表示i点与类内点的平均距离，i表示第i个样本。
本申请的实施例还可设置切换场景类与切换配置策略间的对应关系，得到切换场景类与切换配置策略关系表，不同配置策略对应不同的切换配置信息。通过多分类模型确定了至少一个终端的切换场景类别，可根据切换场景类别划分终端组，同一终端组内的终端属于同一切换场景类别，因此可得到 至少一个终端组。
下面以第一终端组为例说明确定与第一终端组对应的切换场景类别对应的切换配置策略。其中，第一终端组为至少一个终端组中的任一终端组，第一终端组对应第一切换场景类别。
本申请的实施例中，可根据第一终端组内的终端的历史切换记录，确定第一终端组内的终端在单位时间内的平均切换次数M。具体实施时，可预先设置切换次数统计的时间周期数，根据第一终端组内的终端的历史切换记录统计第一切换场景类别下第一终端组内的终端的切换总次数以及第一终端组内终端数，第一切换场景类别下第一终端组内的终端在单位时间内的平均切换次数M的计算公式如公式(5)所示：
Figure PCTCN2021117426-appb-000006
确定第一切换场景类别下第一终端组内的终端在单位时间内的平均切换次数M后，根据平均切换次数M确定第一切换场景类别对应的切换配置策略。具体的，判断第一切换场景类别下第一终端组内的终端在单位时间内的平均切换次数M是否位于设定区间[U-a，U]内，若是，则确定第一切换场景类别对应第一切换配置策略，否则，确定第一切换场景类别对应第二切换配置策略。其中，U为至少一个终端组中各终端组内的终端在单位时间内的平均切换次数的极大值，a大于0且小于U，a为经验值。
根据至少一个终端组中各终端组对应的切换场景类别所对应的切换配置策略，得到切换场景类别与切换配置策略关系表。
需说明的是，切换场景类别与切换配置策略关系表中，不同切换场景类别可对应同一切换配置策略。比如，第一切换场景类别为终端从楼外进入楼内，第二切换场景类别为终端室内进入室外，第一切换场景类别和第二切换场景类别均对应第一切换配置策略。
本申请的实施例中，切换配置策略包括第一切换配置策略或第二切换配置策略，第一切换配置策略和第二切换配置策略可适用室内外同频切换下不 同的场景。具体的，室内外同频切换可划分为两种情形：第一种情形是进出楼宇大门等建筑区域，为避免在无信号或信号较差的情况下进行切换，该情形下的终端需要快速切换，对应第一切换配置策略；第二种情形是在除第一种情形之外的室内剩余区域移动，该剩余区域被室内小区覆盖，为防止邻区干扰和物理资源块(Physical Resource Block，PRB)的浪费，该情形下的终端需要延迟切换，对应第二切换配置策略。
其中，网络设备可为第一切换配置策略和第二切换配置策略配置对应的切换配置信息。具体的，第一切换配置策略对应第一切换配置信息，第二切换配置策略对应第二切换配置信息，第一切换配置信息对应的切换判决条件低于第二切换配置信息对应的切换判决条件。比如，对于同一终端的同一小区测量信息，若用第一切换配置信息进行切换判决，则满足切换条件，该终端可以进行小区切换，若用第二切换配置信息进行切换判决，则不满足切换条件，该终端无法进行小区切换。
本申请的实施例中，第一切换配置信息和第二切换配置信息分别包括终端所在小区的迟滞时间、切换偏移值以及终端所在小区的邻小区的迟滞时间、切换偏移值中的至少一项，第一切换配置信息和第二切换配置信息满足以下条件中的至少一种：
第一切换配置信息中终端所在小区的迟滞时间小于第二切换配置信息中终端所在小区的迟滞时间；
第一切换配置信息中终端所在小区的切换偏移值小于第二切换配置信息中终端所在小区的切换偏移值；
第一切换配置信息中终端所在小区的邻小区的迟滞时间小于第二切换配置信息中终端所在小区的迟滞时间；
第一切换配置信息中终端所在小区的邻小区的切换偏移值小于第二切换配置信息中终端所在小区的切换偏移值。
基于上述描述，下面结合附图详细描述本申请的实施例。
图1示例性示出了本申请实施例提供的配置切换配置信息的方法流程图。 如图1所示，该流程由网络设备执行，包括以下几个步骤：
S101：获取终端发送的小区测量信息。
该步骤中，终端可通过周期上报或事件触发上报小区测量信息。网络设备可获取终端按照设定周期发送的小区测量信息，和/或，获取终端的A3测量报告，其中，A3测量报告携带小区测量信息。A3测量报告是终端触发A3事件并进行切换时发送的，A3事件为邻小区质量好于服务小区质量，A3事件可用来决定终端是否切换到邻小区。
其中，小区测量信息包括终端所在小区的RSRP和/或RSRQ，以及终端所在小区的邻小区的PSRP和/或RSRQ。RSRP是指定测量频带上，承载小区专属参考信号的资源粒子上接收到的信号功率的线性平均值。
S102：根据小区测量信息，确定终端的切换场景类别。
该步骤中，可根据预先训练好的多分类模型确定切换场景类别。具体的，将小区测量信息作为多分类模型的输入参数，提取小区测量信息的特征向量，对特征向量进行聚类，得到终端对应的切换场景类别。多分类模型的训练过程参见上述实施例，在此不再重复。
举例来说，将小区测量信息输入到训练好的多分类模型后，多分类模型输出终端的切换场景类别为第二切换场景类别，第二切换场景类别为终端从室外进入室内。
S103：获取与切换场景类别对应的切换配置策略，并获取与切换配置策略对应的切换配置信息。
该步骤中，确定终端的切换场景类别后，根据切换场景类别查询切换场景类别与切换配置策略关系表，得到与切换场景类别对应的切换配置策略，并获取与切换配置策略对应的切换配置信息。切换场景类别与切换配置策略关系表记录了切换场景类别与切换配置策略的对应关系，切换场景类别与切换配置策略关系表的建立过程参见上述实施例，在此不再重复。
比如，根据第二切换场景类别查询切换场景类别与切换配置策略关系表，得到与第二切换场景类别对应的第一切换配置策略，并获取与第一切换配置 策略对应的第一切换配置信息。第一切换配置策略和第一切换配置信息的相关描述参见前述实施例，在此不再重复。
S104：将切换配置信息发送给终端的服务基站。
将切换配置信息发送给终端的服务基站后，服务基站将根据切换配置信息进行终端的切换判决。
比如，网络设备将第一切换配置信息发送给终端的服务基站，服务基站根据第一切换配置信息进行终端的切换判决，由于第一切换配置信息中迟滞时间和偏移值较小，可增加终端的切换速度。
本申请的上述实施例中，对至少一个小区内至少一个终端的小区测量信息进行聚类，分别确定至少一个终端的切换场景类别，得到多分类模型，同一终端组内的终端属于同一切换场景类别，确定至少一个终端组中各终端组对应的切换场景类别所对应的切换配置策略，得到切换场景类别与切换配置策略关系表。基于多分类模型，根据终端上报的小区测量信息确定终端的切换场景类别，根据确定的切换场景类别查询切换场景类别与切换场景配置策略表，得到与终端的切换场景类别获取对应的切换配置策略，并获取与切换配置策略对应的切换配置信息，将切换配置信息发送给终端所在的服务基站，从而实现多元切换场景类别下对终端所在的服务小区的切换配置信息的个性化设置，进而维持网络稳定运行。
基于相同的技术构思，本申请实施例提供了一种网络设备，该网络设备可实现上述实施例中的功能。
参见图2，该网络设备包括获取模块201、类别确定模块202、发送模块203。
获取模块201，用于获取终端发送的小区测量信息；
类别确定模块202，用于根据小区测量信息，确定终端的切换场景类别；
获取模块201，还用于获取与切换场景类别对应的切换配置策略，并获取与切换配置策略对应的切换配置信息；
发送模块203，用于将切换配置信息发送给终端的服务基站。
本申请的实施例中，切换配置策略为第一切换配置策略或第二切换配置策略；
第一切换配置策略对应第一切换配置信息，第二切换配置策略对应第二切换配置信息，第一切换配置信息对应的切换判决条件低于第二切换配置信息对应的切换判决条件。
本申请的实施例中，第一切换配置信息和第二切换配置信息分别包括终端所在小区的迟滞时间、切换偏移值以及终端所在小区的邻小区的迟滞时间、切换偏移值中的至少一项；
第一切换配置信息和第二切换配置信息满足以下条件中的至少一种：
第一切换配置信息中终端所在小区的迟滞时间小于第二切换配置信息中终端所在小区的迟滞时间；
第一切换配置信息中终端所在小区的切换偏移值小于第二切换配置信息中终端所在小区的切换偏移值；
第一切换配置信息中终端所在小区的邻小区的迟滞时间小于第二切换配置信息中终端所在小区的迟滞时间；
第一切换配置信息中终端所在小区的邻小区的切换偏移值小于第二切换配置信息中终端所在小区的切换偏移值。
本申请的实施例中，获取模块201具体用于：获取终端按照设定周期发送的小区测量信息；和/或，获取终端的A3测量报告，A3测量报告携带小区测量信息。
本申请的实施例中，类别确定模块202具体用于：
提取小区测量信息的特征向量；
对特征向量进行聚类，得到终端的切换场景类别。
本申请的实施例中，获取模块201具体还用于：
根据切换场景类别查询切换场景类别与切换配置策略关系表，得到与切换场景类别对应的切换配置策略。
本申请的实施例中，还包括训练模块，关系表确定模块；
训练模块，用于获取至少一个小区内的至少一个终端的小区测量信息，并根据至少一个终端的小区测量信息，分别确定至少一个终端的切换场景类别，得到至少一个终端组，同一终端组内的终端属于同一切换场景类别，第一终端组为至少一个终端组中的任一一个终端组，第一终端组对应第一切换场景类别；
关系表确定模块，用于根据第一终端组内的终端的历史切换记录，确定第一终端组内的终端在单位时间内的平均切换次数，并根据平均切换次数确定第一切换场景类别对应的切换配置策略；根据至少一个终端组中各终端组对应的切换场景类别所对应的切换配置策略，得到切换场景类别与切换配置策略关系表。
本申请的实施例中，关系表确定模块具体用于：
若第一终端组内的终端在单位时间内的平均切换次数位于设定区间[U-a，U]内，则确定第一切换场景类别对应第一切换配置策略，否则，确定第一切换场景类别对应第二切换配置策略；其中U为至少一个终端组对应的单位时间内的平均切换次数的极大值，a大于0且小于U。
在此需要说明的是，本发明实施例提供的上述网络设备，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
基于相同的技术构思，本申请实施例还提供了一种网络设备，该网络设备可实现上述实施例中的方法。
图3示例性示出了本申请实施例中的网络侧设备的结构示意图。如图所示，该网络侧设备可包括：处理器301、存储器302、收发机303以及总线接口304。
处理器301负责管理总线架构(Bus architecture)和通常的处理，存储器302可以存储处理器301在执行操作时所使用的数据。收发机303用于在处理器301的控制下接收和发送数据。
总线架构可以包括任意数量的互联的总线和桥，具体由处理器301代表 的一个或多个处理器和存储器302代表的存储器的各种电路链接在一起。总线架构还可以将诸如外围设备、稳压器(Pressure regulator)和功率管理电路等之类的各种其他电路链接在一起，这些都是本领域所公知的，因此，本文不再对其进行进一步描述。总线接口提供接口。处理器301负责管理总线架构和通常的处理，存储器302可以存储处理器301在执行操作时所使用的数据。
本申请实施例揭示的流程，可以应用于处理器301中，或者由处理器301实现。在实现过程中，信号处理流程的各步骤可以通过处理器301中的硬件的集成逻辑电路或者软件形式的指令完成。处理器301可以是通用处理器、数字信号处理器、专用集成电路、现场可编程门阵列或者其他可编程逻辑器件、分立门或者晶体管逻辑器件、分立硬件组件，可以实现或者执行本申请实施例中的公开的各方法、步骤及逻辑框图。通用处理器可以是微处理器或者任何常规的处理器等。结合本申请实施例所公开的方法的步骤可以直接体现为硬件处理器执行完成，或者用处理器中的硬件及软件模块组合执行完成。软件模块可以位于随机存储器，闪存、只读存储器，可编程只读存储器或者电可擦写可编程存储器、寄存器等本领域成熟的存储介质中。该存储介质位于存储器302，处理器301读取存储器302中的信息，结合其硬件完成信号处理流程的步骤。具体地，处理器301，用于读取存储器302中的计算机指令并执行图1所示的流程中网络设备实现的功能。
在此需要说明的是，本发明实施例提供的上述网络设备，能够实现上述方法实施例所实现的所有方法步骤，且能够达到相同的技术效果，在此不再对本实施例中与方法实施例相同的部分及有益效果进行具体赘述。
本申请实施例还提供了一种计算机可读存储介质，计算机可读存储介质存储有计算机可执行指令，计算机可执行指令用于使计算机执行上述实施例中网络设备所执行的方法。
本领域内的技术人员应明白，本申请的实施例可提供为方法、系统、或计算机程序产品。因此，本申请可采用完全硬件实施例、完全软件实施例、 或结合软件和硬件方面的实施例的形式。而且，本申请可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器、CD-ROM(Compact Disc Read-Only Memory，紧凑型光盘只读储存器)、光学存储器等)上实施的计算机程序产品的形式。
本申请是参照根据本申请的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器，使得通过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中，使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品，该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上，使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理，从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然，本领域的技术人员可以对本申请进行各种改动和变型而不脱离本申请的精神和范围。这样，倘若本申请的这些修改和变型属于本申请权利要求及其等同技术的范围之内，则本申请也意图包含这些改动和变型在内。

Claims (18)

  1. 一种配置切换配置信息的方法，其特征在于，包括：
    获取终端发送的小区测量信息；
    根据所述小区测量信息，确定所述终端的切换场景类别；
    获取与所述切换场景类别对应的切换配置策略，并获取与所述切换配置策略对应的切换配置信息；
    将所述切换配置信息发送给所述终端的服务基站。
  2. 如权利要求1所述的方法，其特征在于，所述切换配置策略为第一切换配置策略或第二切换配置策略；
    所述第一切换配置策略对应第一切换配置信息，所述第二切换配置策略对应第二切换配置信息，所述第一切换配置信息对应的切换判决条件低于所述第二切换配置信息对应的切换判决条件。
  3. 如权利要求2所述的方法，其特征在于，所述第一切换配置信息和所述第二切换配置信息分别包括所述终端所在小区的迟滞时间、切换偏移值以及所述终端所在小区的邻小区的迟滞时间、切换偏移值中的至少一项；
    所述第一切换配置信息和所述第二切换配置信息满足以下条件中的至少一种：
    所述第一切换配置信息中所述终端所在小区的迟滞时间小于所述第二切换配置信息中所述终端所在小区的迟滞时间；
    所述第一切换配置信息中所述终端所在小区的切换偏移值小于所述第二切换配置信息中所述终端所在小区的切换偏移值；
    所述第一切换配置信息中所述终端所在小区的邻小区的迟滞时间小于所述第二切换配置信息中所述终端所在小区的迟滞时间；
    所述第一切换配置信息中所述终端所在小区的邻小区的切换偏移值小于所述第二切换配置信息中所述终端所在小区的切换偏移值。
  4. 如权利要求1所述的方法，其特征在于，所述获取终端发送的小区测 量信息，包括：
    获取终端按照设定周期发送的所述小区测量信息；和/或
    获取终端的A3测量报告，所述A3测量报告携带小区测量信息。
  5. 如权利要求1所述的方法，其特征在于，所述根据所述小区测量信息，确定所述终端的切换场景类别，包括：
    提取所述小区测量信息的特征向量；
    对所述特征向量进行聚类，得到所述终端的切换场景类别。
  6. 如权利要求1所述的方法，其特征在于，所述获取与所述切换场景类别对应的切换配置策略，包括：
    根据所述切换场景类别查询切换场景类别与切换配置策略关系表，得到与所述切换场景类别对应的切换配置策略。
  7. 如权利要求6所述的方法，其特征在于，还包括；
    获取至少一个小区内的至少一个终端的小区测量信息，并根据所述至少一个终端的小区测量信息，分别确定所述至少一个终端的切换场景类别，得到至少一个终端组，同一终端组内的终端属于同一切换场景类别，第一终端组为所述至少一个终端组中的任一终端组，所述第一终端组对应第一切换场景类别；
    根据所述第一终端组内的终端的历史切换记录，确定所述第一终端组内的终端在单位时间内的平均切换次数，并根据所述平均切换次数确定所述第一切换场景类别对应的切换配置策略；
    根据所述至少一个终端组中各终端组对应的切换场景类别所对应的切换配置策略，得到所述切换场景类别与切换配置策略关系表。
  8. 如权利要求7所述的方法，其特征在于，所述根据所述平均切换次数确定所述第一切换场景类别对应的切换配置策略，包括：
    若所述第一终端组内的终端在单位时间内的平均切换次数位于设定区间[U-a，U]内，则确定所述第一切换场景类别对应第一切换配置策略，否则，确定所述第一切换场景类别对应第二切换配置策略；其中U为所述至少一个终 端组对应的单位时间内的平均切换次数的极大值，a大于0且小于U。
  9. 一种网络设备，其特征在于，包括：
    获取模块，用于获取终端发送的小区测量信息；
    类别确定模块，用于根据所述小区测量信息，确定所述终端的切换场景类别；
    所述获取模块，还用于获取与所述切换场景类别对应的切换配置策略，并获取与所述切换配置策略对应的切换配置信息；
    发送模块，用于将所述切换配置信息发送给所述终端的服务基站。
  10. 如权利要求9所述的网络设备，其特征在于，所述切换配置策略为第一切换配置策略或第二切换配置策略；
    所述第一切换配置策略对应第一切换配置信息，所述第二切换配置策略对应第二切换配置信息，所述第一切换配置信息对应的切换判决条件低于所述第二切换配置信息对应的切换判决条件。
  11. 如权利要求10所述的网络设备，其特征在于，所述第一切换配置信息和所述第二切换配置信息分别包括所述终端所在小区的迟滞时间、切换偏移值以及所述终端所在小区的邻小区的迟滞时间、切换偏移值中的至少一项；
    所述第一切换配置信息和所述第二切换配置信息满足以下条件中的至少一种：
    所述第一切换配置信息中所述终端所在小区的迟滞时间小于所述第二切换配置信息中所述终端所在小区的迟滞时间；
    所述第一切换配置信息中所述终端所在小区的切换偏移值小于所述第二切换配置信息中所述终端所在小区的切换偏移值；
    所述第一切换配置信息中所述终端所在小区的邻小区的迟滞时间小于所述第二切换配置信息中所述终端所在小区的迟滞时间；
    所述第一切换配置信息中所述终端所在小区的邻小区的切换偏移值小于所述第二切换配置信息中所述终端所在小区的切换偏移值。
  12. 如权利要求9所述的网络设备，其特征在于，所述获取模块具体用 于：
    获取终端按照设定周期发送的所述小区测量信息；和/或
    获取终端的A3测量报告，所述A3测量报告携带小区测量信息。
  13. 如权利要求9所述的网络设备，其特征在于，所述类别确定模块具体用于：
    提取所述小区测量信息的特征向量；
    对所述特征向量进行聚类，得到所述终端的切换场景类别。
  14. 如权利要求9所述的网络设备，其特征在于，所述获取模块还用于：
    根据所述切换场景类别查询切换场景类别与切换配置策略关系表，得到与所述切换场景类别对应的切换配置策略。
  15. 如权利要求14所述的网络设备，其特征在于，还包括训练模块、关系表确定模块；
    所述训练模块，用于获取至少一个小区内的至少一个终端的小区测量信息，并根据所述至少一个终端的小区测量信息，分别确定所述至少一个终端的切换场景类别，得到至少一个终端组，同一终端组内的终端属于同一切换场景类别，第一终端组为所述至少一个终端组中的任一终端组，所述第一终端组对应第一切换场景类别；
    所述关系表确定模块，用于根据所述第一终端组内的终端的历史切换记录，确定所述第一终端组内的终端在单位时间内的平均切换次数，并根据所述平均切换次数确定所述第一切换场景类别对应的切换配置策略；根据所述至少一个终端组中各终端组对应的切换场景类别所对应的切换配置策略，得到所述切换场景类别与切换配置策略关系表。
  16. 如权利要求15所述的网络设备，其特征在于，所述关系表确定模块用于：
    若所述第一终端组内的终端在单位时间内的平均切换次数位于设定区间[U-a，U]内，则确定所述第一切换场景类别对应第一切换配置策略，否则，确定所述第一切换场景类别对应第二切换配置策略；其中U为所述至少一个终 端组对应的单位时间内的平均切换次数的极大值，a大于0且小于U。
  17. 一种网络设备，其特征在于，包括处理器、存储器、收发机；
    所述收发机，在处理器的控制下进行数据的接收和发送；
    所述存储器，存储计算机指令；
    所述处理器，用于读取所述计算机指令，执行如权利要求1-8中任一项所述的方法。
  18. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质存储有计算机可执行指令，所述计算机可执行指令用于使计算机执行如权利要求1-8中任一项所述的方法。
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