CN116347420B - UE searching method, device, equipment and storage medium of millimeter wave base station - Google Patents
UE searching method, device, equipment and storage medium of millimeter wave base station Download PDFInfo
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W8/00—Network data management
- H04W8/005—Discovery of network devices, e.g. terminals
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- H04W88/00—Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02D30/00—Reducing energy consumption in communication networks
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Abstract
The application discloses a UE searching method, device, equipment and storage medium of a millimeter wave base station, and belongs to the technical field of communication. The method comprises the following steps: if the UE searching trigger event occurs, acquiring a predetermined searching strategy; wherein the search strategy comprises at least two search schemes and an execution sequence of the at least two search schemes; the parameters for each search scheme include: beam width and scan direction; executing the search schemes one by one according to the execution sequence according to the search strategy; if the target UE is searched, the searching process is terminated. According to the technical scheme, a plurality of search schemes can be determined at the same time and executed in sequence, so that the efficiency of searching the UE is improved. Meanwhile, different search schemes can be changed according to the situation to determine different search strategies by pre-storing the search strategies, so that the flexibility of determining the search strategies is improved.
Description
Technical Field
The application belongs to the technical field of communication, and particularly relates to a UE searching method, device, equipment and storage medium of a millimeter wave base station.
Background
With the continuous development of mobile communication technology, the generation of the fifth generation mobile communication technology (5G) is now coming, the popularization and continuous upgrading of the 5G can greatly expand the application range of mobile communication, and the production and life of the mobile communication system are better and more convenient. Millimeter waves have the characteristics of high frequency, short wavelength, high reliability, good directivity and the like, and become an important component of 5G under the wish of higher speed, lower energy consumption and more connection in the 5G era.
Searching for UEs (user equipments) is nowadays done based on a two-stage extended kalman filter of reference signal received power measurements, beamformed downlink reference signals are sent by multiple base stations and measured by the user equipments using received beamforming. The measurement results thus obtained are fed back to the BS (Browser/Server, browser/Server mode), where the corresponding departure direction is estimated in turn by a new EKF (ExtendedKalma nFilter ). Such angle estimates from multiple base stations are then fused on a central entity by means of angle-based EKFs into a 3D position estimate of the UE.
But the current search process is complex, the search efficiency is low, and the search time cannot be optimized. Therefore, how to improve the searching efficiency, and continuously optimize the searching mode according to the searching duration and the like is a problem to be solved in the art.
Disclosure of Invention
The embodiment of the application provides a UE searching method, device, equipment and storage medium of a millimeter wave base station, aiming at solving the problems of lower UE searching efficiency and more complex searching process in the prior art. Through the UE searching method of the millimeter wave base station, a plurality of searching schemes can be determined simultaneously and executed sequentially, so that the UE searching efficiency is improved. Meanwhile, different search schemes can be changed according to the situation to determine different search strategies by pre-storing the search strategies, so that the flexibility of determining the search strategies is improved.
In a first aspect, an embodiment of the present application provides a UE searching method of a millimeter wave base station, where the method includes:
if the UE searching trigger event occurs, acquiring a predetermined searching strategy; wherein the search strategy comprises at least two search schemes and an execution sequence of the at least two search schemes; the parameters for each search scheme include: beam width and scan direction;
executing the search schemes one by one according to the execution sequence according to the search strategy;
if the target UE is searched, the searching process is terminated.
Further, the determining process of the search strategy includes:
acquiring historical search data; the history searching data comprises the number of beams, the beam width of each beam, the scanning direction and the searching success time length;
according to the search success time length, determining the dependency weight of the search success time length of the millimeter wave base station in the search process on the beam width, the beam quantity and the scanning direction;
determining a dependent weight score of a search scheme consisting of beam width, beam number and scanning direction according to the dependent weights;
and determining the execution sequence of each search scheme according to the dependency weight scores.
Further, before determining the execution order of each search scheme according to the dependency weight score, the method further includes:
determining a search success time average value obtained by traversing all scanning directions by adopting default parameters according to the default configuration parameters of the millimeter wave base station;
according to the average value of the search duration, negative sample marking is carried out on the historical search data;
correspondingly, determining the execution sequence of each search scheme according to the dependency weight score comprises the following steps:
deleting the historical search data with the negative sample marks to obtain positive sample data;
and determining the execution sequence of each search scheme according to the dependence weight score of the positive sample data.
Further, before executing the search schemes one by one according to the execution order according to the search policy, the method further includes:
acquiring position estimation information of the UE;
correspondingly, according to the search strategy, executing the search scheme one by one according to the execution sequence, wherein the method comprises the following steps:
reordering each search scheme in the search strategy according to the position estimation information and the scanning direction in each search scheme;
the search scheme is performed one by one according to the reordered results.
Further, obtaining the location estimation information of the UE includes:
and determining the position estimation information of the UE according to the CI information in the 4G network connected with the UE.
Further, after determining the location speculation information for the UE, the method further includes:
determining the power level of the millimeter wave base station according to the position estimation information;
and determining gain parameters of an antenna array of the millimeter wave base station executing the search strategy according to the power level.
In a second aspect, an embodiment of the present application provides a UE search apparatus of a millimeter wave base station, where the apparatus includes:
the acquisition module is used for acquiring a predetermined search strategy if a UE search trigger event occurs; wherein the search strategy comprises at least two search schemes and an execution sequence of the at least two search schemes; the parameters for each search scheme include: beam width and scan direction;
the execution module is used for executing the search schemes one by one according to the execution sequence according to the search strategy;
and the termination module is used for terminating the searching process if the target UE is searched.
Further, the apparatus further includes a search policy determination module, where the search policy determination module is configured to:
acquiring historical search data; the history searching data comprises the number of beams, the beam width of each beam, the scanning direction and the searching success time length;
according to the search success time length, determining the dependency weight of the search success time length of the millimeter wave base station in the search process on the beam width, the beam quantity and the scanning direction;
determining a dependent weight score of a search scheme consisting of beam width, beam number and scanning direction according to the dependent weights;
and determining the execution sequence of each search scheme according to the dependency weight scores.
In a third aspect, embodiments of the present application provide an electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, the program or instruction implementing the steps of the method according to the first aspect when executed by the processor.
In a fourth aspect, embodiments of the present application provide a readable storage medium having stored thereon a program or instructions which when executed by a processor implement the steps of the method according to the first aspect.
In a fifth aspect, embodiments of the present application provide a chip, where the chip includes a processor and a communication interface, where the communication interface is coupled to the processor, and where the processor is configured to execute a program or instructions to implement a method according to the first aspect.
In the embodiment of the application, if a UE searching trigger event occurs, a predetermined searching strategy is obtained; wherein the search strategy comprises at least two search schemes and an execution sequence of the at least two search schemes; the parameters for each search scheme include: beam width and scan direction; executing the search schemes one by one according to the execution sequence according to the search strategy; if the target UE is searched, the searching process is terminated. By the UE searching method of the millimeter wave base station, a plurality of searching schemes can be determined at the same time and executed in sequence, so that the UE searching efficiency is improved. Meanwhile, different search schemes can be changed according to the situation to determine different search strategies by pre-storing the search strategies, so that the flexibility of determining the search strategies is improved.
Drawings
Fig. 1 is a flowchart of a UE searching method of a millimeter wave base station according to an embodiment of the present application;
fig. 2 is a flow chart of a UE searching method of a millimeter wave base station according to a second embodiment of the present application;
fig. 3 is a schematic structural diagram of a UE search device of a millimeter wave base station according to a third embodiment of the present application;
fig. 4 is a schematic structural diagram of an electronic device according to a fourth embodiment of the present application.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the following detailed description of specific embodiments thereof is given with reference to the accompanying drawings. It is to be understood that the specific embodiments described herein are merely illustrative of the application and not limiting thereof. It should be further noted that, for convenience of description, only some, but not all of the matters related to the present application are shown in the accompanying drawings. Before discussing exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although a flowchart depicts operations (or steps) as a sequential process, many of the operations can be performed in parallel, concurrently, or at the same time. Furthermore, the order of the operations may be rearranged. The process may be terminated when its operations are completed, but may have additional steps not included in the figures. The processes may correspond to methods, functions, procedures, subroutines, and the like.
Technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.
The method, the device, the equipment and the storage medium for searching the UE of the millimeter wave base station provided by the embodiment of the application are described in detail below by means of specific embodiments and application scenes of the specific embodiments with reference to the accompanying drawings.
Example 1
Fig. 1 is a flowchart of a UE searching method of a millimeter wave base station according to an embodiment of the present application. As shown in fig. 1, the method specifically comprises the following steps:
s101, if a UE searching trigger event occurs, acquiring a predetermined searching strategy; wherein the search strategy comprises at least two search schemes and an execution sequence of the at least two search schemes; the parameters for each search scheme include: beam width and scan direction.
First, the usage scenario of the present scheme may be a scenario in which the millimeter wave base station searches for the UE according to a search scheme.
Based on the above usage scenario, it can be understood that the execution subject of the present application may be the millimeter wave base station, which is not limited herein too.
In this scheme, the method is performed by a millimeter wave base station.
Millimeter wave refers to a special electromagnetic wave with a wavelength of 1 mm to 10 mm and a fluctuation frequency of 30GHz-300GHz. Compared with the frequency band below 6GHz, the millimeter wave has the unique advantages of large bandwidth, low air interface time delay, flexible and elastic air interface configuration and the like, and can meet the demands of future wireless communication on the aspects of system capacity, transmission rate, differential application and the like. The millimeter wave base station is a communication base station, and refers to a radio transceiver station that performs information transfer with a mobile phone terminal through a mobile communication switching center in a limited radio coverage area.
In this solution, UE (User Equipment), such as a mobile phone, a tablet computer, and a notebook computer. When the user equipment enters the coverage area of the millimeter wave base station, the millimeter wave base station detects the UE signal, and further the UE searching trigger event is regarded as triggered.
The search strategy may be a manner used to search for the UE, comprising at least two search schemes consisting of beamwidth and scan direction.
The beam width may be the angle between the two directions of decreasing radiation power by 3dB on both sides of the maximum radiation direction, and is related to the antenna gain, and generally the larger the antenna gain is, the narrower the beam is, and the higher the detection angle resolution is.
The scan direction may be the direction in which the base station transmits a beam, and is divided into omni-directional and directional. Omni-direction may be the simultaneous transmission of beams by a base station to an area within coverage; the directional may be that the base station transmits a beam to a specific direction, for example, the coverage area of the base station is divided into six areas, and the base station transmits the beam to the area directly above the base station is directional transmission.
The search scheme may be a scheme of searching for UEs consisting of one scan direction and a beam width, and may be expressed as a scan direction-beam width. For example, the scanning direction is upper left, the beam width is 1, and the search scheme may be expressed as: upper left-1. The search strategy comprises at least two search schemes, i.e. a scheme comprising at least two scan directions and a beam width composition for searching for the UE, wherein the beam width may be fixed but the scan direction has to be changed. For example, a search strategy may contain two search schemes, top left-1 and top right-1. The two search schemes need to have an execution sequence, that is, the sequence of the search schemes, the upper left-1 can be set to be executed first, and the upper left-1 is set to be executed last, so that the search strategy is to firstly transmit millimeter waves with the beam width of 1 to the upper left and then transmit millimeter waves with the beam width of 1 to the upper right.
When a UE search trigger event occurs, a predetermined search strategy is automatically acquired. The method comprises the steps that an intelligent terminal or an internet of things platform can be utilized to acquire a predetermined search strategy, a database table for storing the search strategy is established in advance in the intelligent terminal and the internet of things platform, and the search strategy is stored. Sensing whether the UE searches for the trigger event can be performed by means of a sensor, after the sensor detects a signal, the signal is transmitted to the intelligent terminal or the Internet of things platform through the intelligent gateway, and the intelligent terminal or the Internet of things platform automatically invokes a database table storing the search strategy to determine the search strategy after receiving the signal. The intelligent gateway is network equipment, is key to the intellectualization of a local area network, generally supports virtual network access, wiFi access, wired broadband access and the like, and can realize the functions of information acquisition, information input, information output, centralized control, remote control, linkage control and the like of equipment such as sensors, network equipment, cameras, hosts and the like in the local area network.
On the basis of the above embodiment, optionally, the determining process of the search strategy includes:
acquiring historical search data; the history searching data comprises the number of beams, the beam width of each beam, the scanning direction and the searching success time length;
according to the search success time length, determining the dependency weight of the search success time length of the millimeter wave base station in the search process on the beam width, the beam quantity and the scanning direction;
determining a dependent weight score of a search scheme consisting of beam width, beam number and scanning direction according to the dependent weights;
and determining the execution sequence of each search scheme according to the dependency weight scores.
In this scheme, the history search data may be the number of beams used by the UE to be successfully searched, the beam width of each beam, the scanning direction, and the search success time. Wherein the number of beams may be the number of beams transmitted when searching for the UE. The search success time period may be a time used by the millimeter wave base station to search for the target UE, and may be expressed in seconds.
The dependency weight may be a beam width, a beam number, and an importance degree of a search success time length of the scanning direction when the millimeter wave base station successfully searches the UE, and the total dependency weight may be set to 1, and the larger the weight value is, the more important the search success time length is. For example, if the beam width weight is 0.3, the beam number weight is 0.2, and the scanning direction weight is 0.5, the search success time length has the greatest dependence on the scanning direction.
The dependency weight score can be the extent of influence on the successful duration of search when the beam width, the number of beams and the weight of the scanning direction are changed, and the larger the influence on the successful duration of search is when the weight is changed, the larger the dependency weight score is; the smaller the influence on the search success time length during the change, the smaller the dependence weight score. For example, when the number of beams is increased from 0.2 to 0.4, the influence on the search success time length is small, but when the scanning direction is increased from 0.2 to 0.4, the influence on the search success time length is large, and the number of beams is increased, and the number of beams is increased. The dependent weight scores of the search scheme consisting of beam width, number of beams and scan direction can thus be determined by means of the dependent weights.
After the dependent weight scores of all the schemes are determined, the search scheme with the larger dependent weight score is determined to be executed first, the search schemes are ordered according to the order of the dependent weight scores, and the target UE is searched according to the execution order.
In the scheme, the search scheme can be adjusted according to the magnitude of the dependency weight by setting the dependency weight and the dependency weight score, and the execution sequence of the search scheme is determined according to the dependency weight score. The efficiency of searching the UE is improved to a certain extent, and the successful searching time is continuously shortened.
On the basis of the foregoing embodiment, optionally, before determining the execution order of each search scheme according to the dependency weight score, the method further includes:
determining a search success time average value obtained by traversing all scanning directions by adopting default parameters according to the default configuration parameters of the millimeter wave base station;
according to the average value of the search duration, negative sample marking is carried out on the historical search data;
correspondingly, determining the execution sequence of each search scheme according to the dependency weight score comprises the following steps:
deleting the historical search data with the negative sample marks to obtain positive sample data;
and determining the execution sequence of each search scheme according to the dependence weight score of the positive sample data.
In this solution, the default configuration parameter may be a default beam width and a default beam number of a beam sent by the millimeter wave base station, where the default beam width may be set to 1, and the default beam number may be set to one beam.
Because the coverage area of the millimeter wave base station is divided into six areas in the scheme, beams can be respectively sent to the six areas by using default configuration parameters, the search success time lengths of the six scanning directions are recorded, and finally the search success time lengths of the six scanning directions are accumulated and the average value of the search success time lengths is calculated, wherein a calculation formula can be expressed as follows: search success time length average = search success time length sum of 6 scan directions ≡6.
The negative sample mark can be a mark made by data with the time length higher than the average value of the search time length when the search is successful in the historical search data.
The positive sample data may be data in which the search success time period of the history search data is lower than the average of the search success time periods.
When the searching success time length in the historical searching data is higher than the searching time length average value, deleting the data, namely, not considering the searching scheme of which the searching success time length is higher than the searching time length average value. The deleted data is positive sample data, and the data can be selected from the positive sample data as a searching scheme.
After positive sample data is determined, the dependency weight scores of the positive sample data are checked and sorted from large to small as the execution sequence of the search scheme.
In the scheme, the execution sequence of the search scheme is determined according to the average value of the search time length and the dependence weight score of the positive sample data, so that the scheme with longer search success time length can be screened out, and the scheme with shorter search success time length can be used. The UE searching efficiency is improved to a certain extent, and the searching success time is continuously reduced.
S102, executing the search schemes one by one according to the execution sequence according to the search strategy.
When the intelligent terminal or the internet of things platform determines the search strategy, the search strategy is transmitted to the millimeter wave base station through the wireless communication technology, so that the millimeter wave base station executes the search scheme according to the execution sequence, namely, the millimeter waves are transmitted to different directions according to the execution sequence of the search scheme. The wireless communication refers to long-distance transmission communication between a plurality of nodes without transmission via conductors or cables, and can be performed by radio, or the like.
S103, if the target UE is searched, the searching process is terminated.
When the beam transmitted by the millimeter wave base station is received by the UE, the UE transmits a response signal to the millimeter wave base station, and when the millimeter wave base station receives the response signal transmitted by the UE, the UE is regarded as searching for the target UE, and the searching process is terminated.
In the embodiment of the application, if a UE searching trigger event occurs, a predetermined searching strategy is obtained; wherein the search strategy comprises at least two search schemes and an execution sequence of the at least two search schemes; the parameters for each search scheme include: beam width and scan direction; executing the search schemes one by one according to the execution sequence according to the search strategy; if the target UE is searched, the searching process is terminated. By the UE searching method of the millimeter wave base station, a plurality of searching schemes can be determined at the same time and executed in sequence, so that the UE searching efficiency is improved. Meanwhile, different search schemes can be changed according to the situation to determine different search strategies by pre-storing the search strategies, so that the flexibility of determining the search strategies is improved.
Example two
Fig. 2 is a flowchart of a UE searching method of a millimeter wave base station according to a second embodiment of the present application. As shown in fig. 2, the method specifically comprises the following steps:
s201, if a UE searching trigger event occurs, acquiring a predetermined searching strategy; wherein the search strategy comprises at least two search schemes and an execution sequence of the at least two search schemes; the parameters for each search scheme include: beam width and scan direction.
S202, acquiring position estimation information of the UE.
The location estimation information may be location information where the UE may appear, and a location when the UE appears in the coverage of the millimeter wave base station last time may be used as the location estimation information. Specifically, the position estimation information may be expressed in terms of geographic coordinates, which are spherical coordinates representing the position of the ground point in terms of latitude and longitude, and may be expressed in terms of (latitude and longitude).
When the UE enters the coverage area of the millimeter wave base station, the sensor detects a UE signal, the signal is transmitted to the intelligent terminal or the Internet of things platform through the intelligent gateway, the intelligent terminal or the Internet of things platform inquires to acquire the position of the UE which appears in the coverage area of the millimeter wave base station at the previous time, and then the position is used as position estimation information. When the UE appears in the coverage area of the millimeter wave base station, the position can be stored in the intelligent terminal or the Internet of things platform, so that the position can be used as position estimation information when the UE appears in the coverage area of the millimeter wave base station next time.
S203, reordering each search scheme in the search strategy according to the position estimation information and the scanning direction in each search scheme.
After the position estimation information is acquired, the intelligent terminal or the internet of things platform checks the scanning direction in the searching scheme, if the scanning direction corresponding to the position estimation information exists, the searching scheme is used as the first executed searching scheme, and then the searching schemes are reordered according to the sequence that the scanning direction is away from the position estimation information from near to far.
S204, executing the search scheme one by one according to the reordered result.
After determining the execution sequence of each search scheme, the intelligent terminal or the internet of things platform transmits the search scheme and the execution sequence to the millimeter wave base station by using a wireless communication technology, and the millimeter wave base station executes the search scheme according to the sequence after receiving the search scheme, namely searches for the target UE according to the search scheme sequence.
S205, if the target UE is searched, the search process is terminated.
On the basis of the above embodiment, optionally, acquiring the location estimation information of the UE includes:
and determining the position estimation information of the UE according to the CI information in the 4G network connected with the UE.
In this scenario, a 4G network is generally referred to as 4G. The 4G communication technology is a fourth generation mobile information system, is a better improvement on the 3G technology, has a greater advantage compared with the 3G communication technology, and combines the WLAN technology and the 3G communication technology well, so that the transmission speed of images is faster, and the quality and the image of the transmitted images are clearer.
The CI information may be cell information, and when the UE connects to the 4G network, location estimation information of the UE may be determined according to a cell in which the UE is located. Specifically, different cells have different identifications, a database table for storing cell information can be pre-established in the intelligent terminal or the internet of things platform, the database table can comprise information such as cell numbers, cell positions and the like, and the cell numbers can be used as the cell identifications. When the UE is connected with the 4G network, the intelligent terminal or the Internet of things platform acquires CI information in the 4G network connected with the UE, inquires cell position information, and takes the position as position estimation information of the UE.
In the scheme, the position estimation information of the UE is more attached to the actual situation by determining the position estimation information of the UE according to the CI information, so that the accuracy and the efficiency of determining the search scheme are improved to a certain extent.
On the basis of the above embodiment, optionally, after determining the location estimation information of the UE, the method further includes:
determining the power level of the millimeter wave base station according to the position estimation information;
and determining gain parameters of an antenna array of the millimeter wave base station executing the search strategy according to the power level.
The power class of the millimeter wave base station can be the transmitting power of the millimeter wave base station, and the power class of the millimeter wave base station can be expressed in a digital form, and the higher the class is, the higher the power is. For example, the millimeter wave base station has a higher transmission power at three levels than at one level.
After the intelligent terminal or the internet of things platform determines the position estimation information, the power level of the millimeter wave can be determined according to the distance between the position and the millimeter wave base station, and the power level is larger as the distance is farther; the closer the distance, the smaller the power level. This is because the larger the millimeter wave base station power, the farther the coverage, and the smaller the power, the closer the coverage.
The gain of an antenna array may be the ratio of the power densities of signals generated by an actual antenna and an ideal radiating element at the same point in space under the condition of equal input power, and quantitatively describes the degree to which an antenna concentrates the input power, which is used to measure the ability of the antenna to transmit and receive signals in a specific direction. The larger the gain parameter, the greater the network coverage in one determined direction. In the scheme, the larger the power level of the millimeter wave base station is, the larger the gain parameter of the antenna array is.
In the scheme, the power level and the gain parameters of the antenna array can be adjusted according to the position estimation information so as to search the target UE by using the most suitable search strategy, thereby saving resources, improving the search efficiency and reducing the search success time.
In this embodiment, by acquiring the position estimation information and determining the execution sequence of the search scheme according to the position estimation information, the ranking of the search scheme can be more attached to the actual position of the UE, so that the target UE can be searched faster, the search efficiency is improved, and the search success time is reduced.
Example III
Fig. 3 is a schematic structural diagram of a UE search device of a millimeter wave base station according to a third embodiment of the present application. As shown in fig. 3, the method specifically includes the following steps:
an obtaining module 301, configured to obtain a predetermined search policy if a UE search trigger event occurs; wherein the search strategy comprises at least two search schemes and an execution sequence of the at least two search schemes; the parameters for each search scheme include: beam width and scan direction;
an execution module 302, configured to execute the search schemes one by one according to the execution order according to the search policy;
and a termination module 303, configured to terminate the search process if the target UE is searched.
Further, the apparatus further includes a search policy determination module, where the search policy determination module is configured to:
acquiring historical search data; the history searching data comprises the number of beams, the beam width of each beam, the scanning direction and the searching success time length;
according to the search success time length, determining the dependency weight of the search success time length of the millimeter wave base station in the search process on the beam width, the beam quantity and the scanning direction;
determining a dependent weight score of a search scheme consisting of beam width, beam number and scanning direction according to the dependent weights;
and determining the execution sequence of each search scheme according to the dependency weight scores.
In the embodiment of the application, the acquiring module is configured to acquire a predetermined search policy if a UE search trigger event occurs; wherein the search strategy comprises at least two search schemes and an execution sequence of the at least two search schemes; the parameters for each search scheme include: beam width and scan direction; the execution module is used for executing the search schemes one by one according to the execution sequence according to the search strategy; and the termination module is used for terminating the searching process if the target UE is searched. By the UE searching device of the millimeter wave base station, a plurality of searching schemes can be determined at the same time and executed in sequence, so that the UE searching efficiency is improved. Meanwhile, different search schemes can be changed according to the situation to determine different search strategies by pre-storing the search strategies, so that the flexibility of determining the search strategies is improved.
The UE search device of the millimeter wave base station in the embodiment of the present application may be a device, or may be a component, an integrated circuit, or a chip in a terminal. The device may be a mobile electronic device or a non-mobile electronic device. By way of example, the mobile electronic device may be a cell phone, tablet computer, notebook computer, palm computer, vehicle-mounted electronic device, wearable device, ultra-mobile personal computer (ultra-mobile personal computer, UMPC), netbook or personal digital assistant (personal digital assistant, PDA), etc., and the non-mobile electronic device may be a server, network attached storage (Network Attached Storage, NAS), personal computer (personal computer, PC), television (TV), teller machine or self-service machine, etc., and the embodiments of the present application are not limited in particular.
The UE search device of the millimeter wave base station in the embodiment of the present application may be a device with an operating system. The operating system may be an Android operating system, an ios operating system, or other possible operating systems, which are not specifically limited in the embodiments of the present application.
The UE searching device of the millimeter wave base station provided in the embodiment of the present application can implement each process implemented by the embodiments of the methods of fig. 1 to 2, and in order to avoid repetition, a detailed description is omitted here.
Example IV
As shown in fig. 4, the embodiment of the present application further provides an electronic device 400, including a processor 401, a memory 402, and a program or an instruction stored in the memory 402 and capable of running on the processor 401, where the program or the instruction implements each process of the UE searching method embodiment of the millimeter wave base station when executed by the processor 401, and the process can achieve the same technical effect, so that repetition is avoided, and no further description is given here.
The electronic device in the embodiment of the application includes the mobile electronic device and the non-mobile electronic device described above.
Example five
The embodiment of the present application further provides a readable storage medium, where a program or an instruction is stored on the readable storage medium, and when the program or the instruction is executed by a processor, the processes of the UE searching method embodiment of the millimeter wave base station are implemented, and the same technical effects can be achieved, so that repetition is avoided, and no further description is given here.
Wherein the processor is a processor in the electronic device described in the above embodiment. The readable storage medium includes a computer readable storage medium such as a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk or an optical disk, and the like.
Example six
The embodiment of the application further provides a chip, the chip includes a processor and a communication interface, the communication interface is coupled with the processor, the processor is used for running a program or an instruction, implementing each process of the UE searching method embodiment of the millimeter wave base station, and achieving the same technical effect, so as to avoid repetition, and no further description is provided here.
It should be understood that the chips referred to in the embodiments of the present application may also be referred to as system-on-chip chips, chip systems, or system-on-chip chips, etc.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.
From the above description of the embodiments, it will be clear to those skilled in the art that the above-described embodiment method may be implemented by means of software plus a necessary general hardware platform, but of course may also be implemented by means of hardware, but in many cases the former is a preferred embodiment. Based on such understanding, the technical solutions of the present application may be embodied essentially or in a part contributing to the prior art in the form of a computer software product stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk), comprising several instructions for causing a terminal (which may be a mobile phone, a computer, a server, or a network device, etc.) to perform the methods described in the embodiments of the present application.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.
The foregoing description is only of the preferred embodiments of the present application and the technical principles employed. The present application is not limited to the specific embodiments described herein, but is capable of numerous obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the present application. Therefore, while the present application has been described in connection with the above embodiments, the present application is not limited to the above embodiments, but may include many other equivalent embodiments without departing from the spirit of the present application, and the scope of the present application is determined by the scope of the claims.
Claims (8)
1. A UE search method of a millimeter wave base station, wherein the method is performed by the millimeter wave base station; the method comprises the following steps:
if the UE searching trigger event occurs, acquiring a predetermined searching strategy; wherein the search strategy comprises at least two search schemes and an execution sequence of the at least two search schemes; the parameters for each search scheme include: beam width and scan direction;
executing the search schemes one by one according to the execution sequence according to the search strategy;
if the target UE is searched, terminating the searching process;
wherein, the process of determining the search strategy comprises the following steps:
acquiring historical search data; the history searching data comprises the number of beams, the beam width of each beam, the scanning direction and the searching success time length;
according to the search success time length, determining the dependency weight of the search success time length of the millimeter wave base station in the search process on the beam width, the beam quantity and the scanning direction;
determining a dependent weight score of a search scheme consisting of beam width, beam number and scanning direction according to the dependent weights;
and determining the execution sequence of each search scheme according to the dependency weight scores.
2. The method of claim 1, wherein prior to determining the order of execution of each search scheme based on the dependency weight scores, the method further comprises:
determining a search success time average value obtained by traversing all scanning directions by adopting default parameters according to the default configuration parameters of the millimeter wave base station;
according to the average value of the search duration, negative sample marking is carried out on the historical search data;
correspondingly, determining the execution sequence of each search scheme according to the dependency weight score comprises the following steps:
deleting the historical search data with the negative sample marks to obtain positive sample data;
and determining the execution sequence of each search scheme according to the dependence weight score of the positive sample data.
3. The method of claim 1, wherein prior to executing the search scheme one by one in the order of execution according to the search strategy, the method further comprises:
acquiring position estimation information of the UE;
correspondingly, according to the search strategy, executing the search scheme one by one according to the execution sequence, wherein the method comprises the following steps:
reordering each search scheme in the search strategy according to the position estimation information and the scanning direction in each search scheme;
the search scheme is performed one by one according to the reordered results.
4. The method of claim 3, wherein obtaining location speculation information for the UE comprises:
and determining the position estimation information of the UE according to the CI information in the 4G network connected with the UE.
5. The method of claim 4, wherein after determining the location speculation information for the UE, the method further comprises:
determining the power level of the millimeter wave base station according to the position estimation information;
and determining gain parameters of an antenna array of the millimeter wave base station executing the search strategy according to the power level.
6. A UE search apparatus of a millimeter wave base station, wherein the apparatus is configured to the millimeter wave base station; the device comprises:
the acquisition module is used for acquiring a predetermined search strategy if a UE search trigger event occurs; wherein the search strategy comprises at least two search schemes and an execution sequence of the at least two search schemes; the parameters for each search scheme include: beam width and scan direction;
the execution module is used for executing the search schemes one by one according to the execution sequence according to the search strategy;
the termination module is used for terminating the searching process if the target UE is searched;
the apparatus further includes a search policy determination module to:
acquiring historical search data; the history searching data comprises the number of beams, the beam width of each beam, the scanning direction and the searching success time length;
according to the search success time length, determining the dependency weight of the search success time length of the millimeter wave base station in the search process on the beam width, the beam quantity and the scanning direction;
determining a dependent weight score of a search scheme consisting of beam width, beam number and scanning direction according to the dependent weights;
and determining the execution sequence of each search scheme according to the dependency weight scores.
7. An electronic device comprising a processor, a memory and a program or instruction stored on the memory and executable on the processor, which when executed by the processor, implements the steps of the UE search method of a mmwave base station as claimed in any one of claims 1-5.
8. A readable storage medium, wherein a program or instructions is stored on the readable storage medium, which when executed by a processor, implements the steps of the UE search method of a millimeter wave base station according to any one of claims 1-5.
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| JP2018207388A (en) * | 2017-06-08 | 2018-12-27 | 富士通株式会社 | Control apparatus, communication system, and terminal position search method |
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