CN114286399B - SCG adding method and device and electronic equipment - Google Patents
SCG adding method and device and electronic equipment Download PDFInfo
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Abstract
The application provides a method and a device for adding SCG and electronic equipment, and relates to the technical field of communication. The SCG adding method comprises the following steps: and determining that the user equipment is in a moving state through the collected multiple pieces of position information of the user equipment in the first time period. For a user equipment in a moving state, a moving direction vector of the user equipment is determined according to a plurality of pieces of position information. And further determining the cell direction vector of each cell based on the movement direction vector and the cell position of each cell. And calculating a first included angle between the moving direction vector and the cell direction vector of each cell, and determining a target SCG cell from each cell according to the first included angle. Thereby improving the stability and the persistence of the added SCG, reducing unnecessary release and addition of the SCG and improving the perception of users.
Description
[ field of technology ]
The present application relates to the field of communications technologies, and in particular, to a method and an apparatus for adding SCG, and an electronic device.
[ background Art ]
The 5G network designs two networking modes, namely SA (Standard alone) and NSA (Non-Standard alone). The NSA mode has the advantages of small change to the existing network, low investment, early protocol freezing and the like, so the existing 5G construction is mainly based on the NSA mode. In NSA mode, 5G SCG (Secondary Cell Group ) needs to be anchored to LTE (Long Term Evolution ) base station. In this process, how to choose the SCG will affect the user perception of the 5G user.
At present, two methods for adding SCG are mainly available, one is to add based on the strongest level, namely selecting the 5G cell with the current strongest level as SCG; one is to add based on load balancing, i.e. the selection of SCGs is done by calculating the load of the SCGs as well as the anchor cell.
However, for a moving user equipment, both of the above methods may result in frequent changes of the radio signal, resulting in frequent release and addition of SCG, resulting in a reduced user perception.
[ application ]
The embodiment of the application provides a method, a device and electronic equipment for adding SCG (SCG), which are used for determining SCG to be added according to the mobile state of user equipment. Thereby improving the reliability of the added SCG, reducing unnecessary release and addition of the SCG, and improving the perception of the user.
In a first aspect, an embodiment of the present application provides a SCG adding method, including: collecting a plurality of position information of user equipment in a first time period; determining that the user equipment is in a mobile state according to the plurality of position information; determining a movement direction vector of the user equipment according to the plurality of position information; determining the cell direction vector of each cell according to the movement direction vector and the cell position of each cell; calculating a first included angle between the moving direction vector and the cell direction vector of each cell; and determining a target SCG cell from the cells according to the calculated first included angles.
In one possible implementation manner, determining that the user equipment is in a mobile state according to the plurality of location information includes: calculating a distance value between any two position information in the plurality of position information; and if the obtained distance value contains a distance value larger than a first threshold value, determining that the user equipment is in a moving state.
In one possible implementation manner, determining a movement direction vector of the user equipment according to the plurality of location information includes: forming a position vector by any two pieces of position information in the plurality of pieces of position information to obtain a position vector set; calculating a second included angle between each position vector in the position vector set and each remaining position vector; determining the number N of second included angles smaller than a preset angle in each second included angle corresponding to each position vector; and determining the position vector with the maximum N value corresponding to the position vector set as the movement direction vector of the user equipment.
In one possible implementation manner, determining the cell direction vector of each cell according to the movement direction vector and the cell position of each cell includes: determining the end position of the movement direction vector as a starting point; determining a cell location of the cell as an end point; and determining a vector of the starting point to the ending point as a cell direction vector of the cell.
In one possible implementation manner, calculating a first included angle between the movement direction vector and the cell direction vector of each cell includes: calculating a first included angle between the moving direction vector and the cell direction vector according to the following formula: wherein ,/>Is the movement direction vector; />Is the cell direction vector.
In one possible implementation manner, determining, according to the calculated first included angles, a target SCG cell from the cells includes: determining a minimum included angle from the calculated first included angles; determining a first cell direction vector corresponding to the minimum included angle; and determining a target SCG cell from the cells corresponding to the first cell direction vector.
In one possible implementation manner, the number of the first cell direction vectors corresponding to the minimum included angle is a plurality of first cell direction vectors; determining a target SCG cell from the cells corresponding to the first cell direction vector comprises: determining a second cell direction vector with the minimum value from a plurality of first cell direction vectors; and determining a target SCG cell from the cells corresponding to the second cell direction vector.
In one possible implementation manner, the number of cells corresponding to the second cell direction vector is a plurality of cells; determining a target SCG cell from the cells corresponding to the second cell direction vector comprises: determining unit vectors of all cells corresponding to the second cell direction vector; the direction of the unit vector is the azimuth angle of the corresponding cell; respectively calculating a third included angle between the unit vector of each cell and the moving direction vector; determining a maximum included angle from the calculated third included angles; and determining the cell corresponding to the maximum included angle as a target SCG cell.
In a second aspect, an embodiment of the present application provides an SCG adding apparatus, including: the acquisition module is used for acquiring a plurality of pieces of position information of the user equipment in a first time period; a first determining module, configured to determine, according to the plurality of location information, that the user equipment is in a mobile state; a second determining module, configured to determine a movement direction vector of the user equipment according to the plurality of location information; a third determining module, configured to determine a cell direction vector of each cell according to the movement direction vector and a cell position of each cell; the processing module is used for calculating a first included angle between the moving direction vector and the cell direction vector of each cell; and a fourth determining module, configured to determine a target SCG cell from the cells according to the calculated first angles.
In a third aspect, an embodiment of the present application provides an electronic device, including: at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, which are called by the processor to perform the method as described above.
In a fourth aspect, embodiments of the present application provide a non-transitory computer-readable storage medium storing computer instructions that cause the computer to perform the method as described above.
In the above technical solution, the user equipment is determined to be in a mobile state by the collected multiple pieces of position information of the user equipment in the first time period. For a user equipment in a moving state, a moving direction vector of the user equipment is determined according to a plurality of pieces of position information. And further determining the cell direction vector of each cell based on the movement direction vector and the cell position of each cell. And calculating a first included angle between the moving direction vector and the cell direction vector of each cell, and determining a target SCG cell from each cell according to the first included angle. Thereby improving the stability and the persistence of the added SCG, reducing unnecessary release and addition of the SCG and improving the perception of users.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a flow chart of an SCG adding method provided by an embodiment of the application;
fig. 2 is a schematic diagram of an SCG adding method according to an embodiment of the present application;
FIG. 3 is a schematic diagram of another SCG adding method according to an embodiment of the present application
Fig. 4 is a schematic structural diagram of an SCG adding device according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
[ detailed description ] of the application
For a better understanding of the technical solution of the present application, the following detailed description of the embodiments of the present application refers to the accompanying drawings.
It should be understood that the described embodiments are merely some, but not all, embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.
When 5G networking is performed based on NSA (Non-Standard networking), an LTE (Long Term Evolution ) base station is an MN (Master Node, main base station); the 5G NR (New Radio) base station is an SN (Secondary Node). The LTE cell is MCG (Master Cell Group ); the NR cells are SCGs (Secondary Cell Group ). When the 5G communication function is implemented, SCG is determined in the NR cell and added to the LTE base station. In the embodiment of the present application, a method of adding SCG will be described.
Fig. 1 is a flowchart of an SCG adding method provided in an embodiment of the present application. As shown in fig. 1, the SCG adding method may include:
in step 101, a base station collects a plurality of location information of a user equipment in a first time period.
In the embodiment of the application, the position information of the user equipment can be acquired according to the preset time interval in the first time period. The first time period may be set according to actual needs, for example, a time period from when the user equipment enters the base station to when the user equipment leaves the base station may be determined as the first time period.
In some embodiments, the location information may be latitude and longitude information, and each location information has a time attribute. Optionally, the plurality of location information of the user equipment in the first period of time may be expressed as:
wherein M is the number of the position information. j (j) uM Longitude, which is the first location information collected. w (w) uM Is the latitude of the first location information acquired. t is t uM Is the timestamp of the first location information.
Optionally, the method for the base station to collect the location information of the user equipment may be that the user equipment collects the location information of the location according to a preset time interval. And then, the user equipment reports the acquired position information to the base station.
Optionally, the method for the base station to collect the location information of the user equipment may further be that the user equipment sends a signal of the location to the base station. And the base station calculates the position information of the user equipment according to the received signals.
Step 102, determining that the user equipment is in a mobile state according to the plurality of position information.
First, a distance value between any two pieces of position information among a plurality of pieces of position information is calculated.
For all the acquired position information, the distance value between any two position information needs to be calculated. For example, the plurality of acquired location information includes location 1, location 2, location 3, and location 4. Then, it is calculated that: a distance value between position 1 and position 2, a distance value between position 1 and position 3, a distance value between position 1 and position 4, a distance value between position 2 and position 3, a distance value between position 2 and position 4, and a distance value between position 3 and position 4.
The formula for calculating the distance value between any two pieces of position information can be:
D ik =average radius of earth arcos [ cos (w) ui )*cos(w uk )*cos(j ui -j uk )+sin(w ui )*sin(w uk )]
wherein ,Dik Is the distance between the i-th position and the k-th position. w (w) ui And j is equal to ui The latitude and longitude of the i-th location, respectively. w (w) uk and juk The latitude and longitude of the kth position, respectively.
Then, if the obtained distance value contains a distance value greater than the first threshold value, the user equipment is indicated to move by a larger distance. At this time, the user equipment is determined to be in a mobile state.
The first threshold value can be set according to the actual situation. In the embodiment of the present application, for example, the first threshold may be set to 20 meters.
Step 103, determining a movement direction vector of the user equipment according to the plurality of position information.
After determining that the user equipment is in a moving state according to the foregoing steps, the moving direction vector of the user equipment may be determined as follows.
Firstly, any two pieces of position information in a plurality of pieces of position information are formed into a position vector to obtain a position vector set
When determining a position vector formed by any two pieces of position information, the position information acquired first is taken as a starting position and the position information acquired later is taken as a termination position according to the time sequence of the position information acquisition. The direction of the position vector is then the direction pointing from the start position to the end position. The magnitude of the position vector is the distance value between the start position and the end position.
Further, a second angle between each position vector in the set of position vectors and the remaining respective position vector is calculated.
The calculation formula of the second included angle is as follows:
wherein ,and->Two position vectors, respectively. />Is the angle between the two position vectors, i.e. the second angle.
Then, determining the number N of second included angles smaller than the preset angle among the second included angles corresponding to each position vector u ＝{N 12 ，N 13 ，…N M-1，M }. And determining the position vector with the maximum N value corresponding to the position vector set as the movement direction vector of the user equipment. Namely, N is o ＝max(N u ) The corresponding position vector is determined as a movement direction vector of the user equipment.
The preset angle can be set according to the actual situation. In the embodiment of the present application, the preset angle may be set to 90 °, for example.
Step 104, determining the cell direction vector of each cell according to the movement direction vector and the cell position of each cell.
In the embodiment of the application, the position information of all the cells can be collected in advance. The location information of the cell may include longitude information, latitude information, and azimuth information. Alternatively, the location information of all cells may be expressed as:
where N is the number of cells. Alpha cN Is the azimuth of the first cell. j (j) cN Longitude, w, of the first cell cN For the first smallLatitude of the zone.
For a specific ue, the execution method of step 104 is as follows:
firstly, inquiring the position information of the cells in the preset range around the user equipment.
In some embodiments, optionally, the user equipment is used as a center, and a preset length is used as a radius to inquire the location information of all cells in the formed circular area.
In other embodiments, the location information of all cells in the sector formed by the circle center angle of 180 ° is queried with the direction indicated by the movement direction vector of the ue as the center and with the preset length as the radius.
The preset length may be set according to the actual situation, and in the embodiment of the present application, the preset length may be set to 50 meters, for example.
Then, the end position of the movement direction vector is determined as the start point. And determining the cell position of the queried cell as an end point. And determining a vector of which the starting point points to the end point as a cell direction vector of the queried cell. The direction of the cell direction vector is the direction that the starting point points to the end point. The magnitude of the cell direction vector is the distance between the start point and the end point. Alternatively, the cell direction vector of the S cells queried may be expressed as:
step 105, calculating a first angle between the movement direction vector and the cell direction vector of each cell.
In the embodiment of the application, the first included angle between the moving direction vector and the cell direction vector can be calculated according to the following formula:
wherein ,is a movement direction vector. />Is a cell direction vector.
And 106, determining a target SCG cell from the cells according to the first included angle.
First, a minimum included angle is determined from the calculated first included angles
Then, a first cell direction vector corresponding to the minimum included angle is determined.
And finally, determining the target SCG cell from the cells corresponding to the first cell direction vector.
In some embodiments, the first cell direction vector corresponding to the minimum included angle has one. At this time, a target SCG cell is determined from the cells corresponding to the first cell direction vector.
In other embodiments, the first cell direction vector corresponding to the minimum included angle is plural. In a possible case, the directions of the direction vectors of the plurality of first cells are the same, and the values are different. At this time, the smallest one of the plurality of first cell direction vectors is determined as the second cell direction vector. And determining the target SCG cell from the cells corresponding to the second cell direction vector.
For example. As shown in fig. 2, among the first included angles between the movement direction vector 21 and the cell direction vectors of the respective cells, the smallest included angle is an included angle a. The first cell direction vector corresponding to the included angle a is a plurality of cell direction vectors, namely, cell direction vector 22 and cell direction vector 23. The direction of the cell direction vector 22 is the same as the direction of the cell direction vector 23, and the values are different. At this time, the one cell direction vector with the smallest value is determined as the second cell direction vector. That is, the cell direction vector 22 is determined as the second cell direction vector. The target SCG cell is determined from the cell to which the cell direction vector 22 corresponds.
When determining the target SCG cell from the cells corresponding to the second cell direction vector, in some embodiments, there is one of the cells corresponding to the second cell direction vector. At this time, the one cell is determined as the target SCG cell.
In some embodiments, the second cell direction vector corresponds to a plurality of cells. The longitude information and the latitude information of the cells are the same, and the azimuth angles are different. At this time, the unit vectors of the respective cells are determined. The direction of each cell unit vector is the azimuth of the cell. And respectively calculating a third included angle between the unit vector and the moving direction vector of each cell. The calculation formula of the third included angle may refer to step 105. And determining the maximum included angle from the calculated third included angles. And determining the cell corresponding to the maximum included angle as a target SCG cell.
For example. As shown in fig. 3, the cell group 2' is an enlarged view of the cell 2 corresponding to the second cell direction vector in fig. 2. As shown in fig. 3, there are two cells included in the cell group 2'. Cell 31 and cell 32, respectively. Wherein the longitude information and latitude information of the cell 31 and the cell 32 are the same. The azimuth angle of cell 31 is b (not shown in fig. 3) and the azimuth angle of cell 32 is c (not shown in fig. 3). The unit vectors of the cell 31 and the cell 32 are determined with the latitude and longitude information of the cell group 2' as a starting point o, respectively. The direction of the unit vector 310 of the cell 31 is the azimuth of the cell 31. The direction of the unit vector 320 of the cell 32 is the azimuth of the cell 32. A third angle between the unit vector 310 and the movement direction vector 21, and a third angle between the unit vector 320 and the movement direction vector 21 are calculated, respectively. As shown in fig. 3, the third included angle between the unit vector 310 and the moving direction vector 21 is the maximum included angle. At this time, the cell 31 is determined as the target SCG cell.
In the embodiment of the application, the user equipment is determined to be in a moving state through a plurality of pieces of position information of the user equipment in the first time period. For a user equipment in a moving state, a moving direction vector of the user equipment is determined according to a plurality of pieces of position information. And further determining the cell direction vector of each cell based on the movement direction vector and the cell position of each cell. And calculating a first included angle between the moving direction vector and the cell direction vector of each cell, and determining a target SCG cell from each cell according to the first included angle. In the determining process of the target SCG cell, the moving direction of the user equipment is fully considered, so that the stability and the persistence of the added SCG are improved, unnecessary release and addition of the SCG are reduced, and the user perception is improved.
In another embodiment of the present application, a specific method for determining a movement direction vector of a user equipment according to a plurality of location information in the SCG adding method is further described.
First, any two pieces of position information in a plurality of pieces of position information are formed into a position vector, and a position vector set is obtained. Then, a second angle between each position vector in the set of position vectors and the remaining respective position vector is calculated. And determining the number N of second included angles smaller than a preset angle among the second included angles corresponding to each position vector. And finally, determining the position vector with the maximum N value corresponding to the position vector set as the movement direction vector of the user equipment.
In some embodiments, one of the position vectors in the position vector set corresponds to the largest N value. At this time, the position vector is determined as a movement direction vector of the user equipment.
In some embodiments, there are a plurality of position vectors in the position vector set with the largest corresponding N values. That is, the N values corresponding to the plurality of position vectors are equal, and the N value is the largest. At this time, a movement direction vector of the user equipment is determined according to the termination positions corresponding to the plurality of position vectors. Specifically, according to the time sequence of the position information acquisition, a position vector corresponding to the last acquired end position in the plurality of end positions is determined as a movement direction vector of the user equipment.
For example. The number of the position vectors with the largest N values in the position vector set is 3. The 3 position vectors are respectivelyAt this time, among the 3 position vectors, the position vector corresponding to the last acquired end position, i.e., the position vector +.>Is determined as a movement direction vector of the user equipment.
In some embodiments, there are a plurality of position vectors in the position vector set with the largest corresponding N values. The plurality of position vectors have the same end position, and are all end positions of the last acquisition. At this time, the movement direction vector of the user equipment is determined according to the start positions of the position vectors with the same termination positions. Specifically, according to the time sequence of the position information acquisition, a position vector corresponding to the initial position acquired first in the plurality of initial positions is determined as a movement direction vector of the user equipment.
For example. The number of the position vectors with the largest N values in the position vector set is 3. The 3 position vectors are respectivelyObviously, there are 2 position vectors with the same termination position out of the 3 position vectors. The two kinds of the materials are respectively that,and the corresponding end positions of the two position vectors are the end positions of the last acquisition. At this time, the movement direction vector of the user equipment is determined according to the starting positions of the two position vectors. Namely, the position vector corresponding to the initial position acquired first among the initial positions of the two position vectors, namely the position vector +.>Is determined as a movement direction vector of the user equipment.
Fig. 4 is a schematic structural diagram of an SCG adding device according to an embodiment of the present application. The SCG adding device in the embodiment can be used as SCG adding equipment to realize the SCG adding method provided by the embodiment of the application. As shown in fig. 2, the SCG adding apparatus may include: the device comprises an acquisition module 41, a first determination module 42, a second determination module 43, a third determination module 44, a processing module 45 and a fourth determination module 46.
The acquisition module 41 is configured to acquire a plurality of location information of the user equipment in a first period.
The first determining module 42 is configured to determine that the user equipment is in a mobile state according to the plurality of location information.
The second determining module 43 is configured to determine a movement direction vector of the user equipment according to the plurality of location information.
The third determining module 44 is configured to determine a cell direction vector of each cell according to the movement direction vector and the cell position of each cell.
A processing module 45, configured to calculate a first included angle between the movement direction vector and the cell direction vector of each cell.
A fourth determining module 46, configured to determine a target SCG cell from the cells according to the calculated first angles.
In the embodiment of the present application, the first determining module 42 determines that the user equipment is in a mobile state according to the plurality of location information of the user equipment acquired by the acquiring module 41. For a user equipment in a mobile state, the second determining module 43 determines a mobile direction vector of the user equipment according to the plurality of location information. Further, the third determining module 44 determines a cell direction vector of each cell according to the movement direction vector and the cell position of each cell. The processing module 45 calculates a first angle between the movement direction vector and the cell direction vector of each cell. The fourth determining module 46 determines the target SCG cell from the cells according to the first included angle. In the determining process of the target SCG cell, the moving direction of the user equipment is fully considered, so that the stability and the persistence of the added SCG are improved, unnecessary release and addition of the SCG are reduced, and the user perception is improved.
Fig. 5 is a schematic structural diagram of an electronic device according to an embodiment of the present application. As shown in fig. 5, the electronic device may include at least one processor; and at least one memory communicatively coupled to the processor, wherein: the memory stores program instructions executable by the processor, and the processor calls the program instructions to execute the SCG adding method provided by the embodiment of the application.
The electronic device may be an SCG adding device, and the specific form of the electronic device is not limited in this embodiment.
Fig. 5 shows a block diagram of an exemplary electronic device suitable for use in implementing embodiments of the application. The electronic device shown in fig. 5 is only an example and should not be construed as limiting the functionality and scope of use of the embodiments of the present application.
As shown in fig. 5, the electronic device is in the form of a general purpose computing device. Components of an electronic device may include, but are not limited to: one or more processors 410, a memory 430, and a communication bus 440 that connects the various system components (including the memory 430 and the processing unit 410).
The communication bus 440 represents one or more of any of several types of bus structures, including a memory bus or memory controller, a peripheral bus, an accelerated graphics port, a processor, or a local bus using any of a variety of bus architectures. By way of example, and not limitation, such architectures include industry Standard architecture (Industry Standard Architecture; hereinafter ISA) bus, micro channel architecture (Micro Channel Architecture; hereinafter MAC) bus, enhanced ISA bus, video electronics standards Association (Video Electronics Standards Association; hereinafter VESA) local bus, and peripheral component interconnect (Peripheral Component Interconnection; hereinafter PCI) bus.
Electronic devices typically include a variety of computer system readable media. Such media can be any available media that can be accessed by the electronic device and includes both volatile and nonvolatile media, removable and non-removable media.
Memory 430 may include computer system readable media in the form of volatile memory, such as random access memory (Random Access Memory; hereinafter: RAM) and/or cache memory. The electronic device may further include other removable/non-removable, volatile/nonvolatile computer system storage media. Although not shown in fig. 5, a magnetic disk drive for reading from and writing to a removable non-volatile magnetic disk (e.g., a "floppy disk"), and an optical disk drive for reading from or writing to a removable non-volatile optical disk (e.g., a compact disk read only memory (Compact Disc Read Only Memory; hereinafter CD-ROM), digital versatile read only optical disk (Digital Video Disc Read Only Memory; hereinafter DVD-ROM), or other optical media) may be provided. In such cases, each drive may be coupled to communication bus 440 by one or more data medium interfaces. Memory 430 may include at least one program product having a set (e.g., at least one) of program modules configured to carry out the functions of the embodiments of the application.
A program/utility having a set (at least one) of program modules may be stored in the memory 430, such program modules including, but not limited to, an operating system, one or more application programs, other program modules, and program data, each or some combination of which may include an implementation of a network environment. Program modules typically carry out the functions and/or methods of the embodiments described herein.
The electronic device may also communicate with one or more external devices (e.g., keyboard, pointing device, display, etc.), with one or more devices that enable a user to interact with the electronic device, and/or with any device (e.g., network card, modem, etc.) that enables the electronic device to communicate with one or more other computing devices. Such communication may occur through communication interface 420. Moreover, the electronic device may also communicate with one or more networks (e.g., local area network (Local Area Network; hereinafter: LAN), wide area network (Wide Area Network; hereinafter: WAN) and/or a public network, such as the Internet) via a network adapter (not shown in FIG. 5) that may communicate with other modules of the electronic device via the communication bus 440. It should be appreciated that although not shown in fig. 5, other hardware and/or software modules may be used in connection with an electronic device, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, disk arrays (Redundant Arrays of Independent Drives; hereinafter RAID) systems, tape drives, data backup storage systems, and the like.
The processor 410 executes various functional applications and data processing by running programs stored in the memory 430, for example, implementing the SCG addition method provided by the embodiment of the present application.
The embodiment of the application also provides a non-transitory computer readable storage medium, which stores computer instructions that enable the computer to execute the SCG adding method provided by the embodiment of the application.
The non-transitory computer readable storage media described above may employ any combination of one or more computer readable media. The computer readable medium may be a computer readable signal medium or a computer readable storage medium. The computer readable storage medium can be, for example, but not limited to, an electronic, magnetic, optical, electromagnetic, infrared, or semiconductor system, apparatus, or device, or a combination of any of the foregoing. More specific examples (a non-exhaustive list) of the computer-readable storage medium would include the following: an electrical connection having one or more wires, a portable computer diskette, a hard disk, a Random Access Memory (RAM), a Read-Only Memory (ROM), an erasable programmable Read-Only Memory (Erasable Programmable Read Only Memory; EPROM) or flash Memory, an optical fiber, a portable compact disc Read-Only Memory (CD-ROM), an optical storage device, a magnetic storage device, or any suitable combination of the foregoing. In this document, a computer readable storage medium may be any tangible medium that can contain, or store a program for use by or in connection with an instruction execution system, apparatus, or device.
The computer readable signal medium may include a propagated data signal with computer readable program code embodied therein, either in baseband or as part of a carrier wave. Such a propagated data signal may take any of a variety of forms, including, but not limited to, electro-magnetic, optical, or any suitable combination of the foregoing. A computer readable signal medium may also be any computer readable medium that is not a computer readable storage medium and that can communicate, propagate, or transport a program for use by or in connection with an instruction execution system, apparatus, or device.
Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.
Computer program code for carrying out operations of the present application may be written in any combination of one or more programming languages, including an object oriented programming language such as Java, smalltalk, C ++ and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The program code may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any kind of network, including a local area network (Local Area Network; hereinafter: LAN) or a wide area network (Wide Area Network; hereinafter: WAN), or may be connected to an external computer (for example, through the Internet using an Internet service provider).
In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and additional implementations are included within the scope of the preferred embodiment of the present application in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order from that shown or discussed, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.
It should be noted that, the terminal according to the embodiment of the present application may include, but is not limited to, a personal Computer (Personal Computer; hereinafter abbreviated as PC), a personal digital assistant (Personal Digital Assistant; hereinafter abbreviated as PDA), a wireless handheld device, a Tablet Computer (Tablet Computer), a mobile phone, an MP3 player, an MP4 player, and the like.
In several embodiments provided by the present application, it should be understood that each functional unit may be integrated in one processing unit, or each unit may exist alone physically, or two or more units may be integrated in one unit. The integrated units may be implemented in hardware or in hardware plus software functional units.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather to enable any modification, equivalent replacement, improvement or the like to be made within the spirit and principles of the application.
Claims (7)
1. A SCG addition method, comprising:
collecting a plurality of position information of user equipment in a first time period;
determining that the user equipment is in a mobile state according to the plurality of position information;
determining a movement direction vector of the user equipment according to the plurality of position information;
determining the cell direction vector of each cell according to the movement direction vector and the cell position of each cell;
calculating a first included angle between the moving direction vector and the cell direction vector of each cell;
determining a target SCG cell from the cells according to the calculated first included angles;
wherein determining a movement direction vector of the user equipment according to the plurality of location information comprises:
forming a position vector by any two pieces of position information in the plurality of pieces of position information to obtain a position vector set;
calculating a second included angle between each position vector in the position vector set and each remaining position vector;
determining the number N of second included angles smaller than a preset angle in each second included angle corresponding to each position vector;
determining a position vector with the maximum N value corresponding to the position vector set as a movement direction vector of the user equipment;
determining the cell direction vector of each cell according to the movement direction vector and the cell position of each cell, including:
determining the end position of the movement direction vector as a starting point;
determining a cell location of the cell as an end point;
determining a vector of the starting point to the ending point as a cell direction vector of the cell;
according to each calculated first included angle, determining a target SCG cell from the cells, including:
determining a minimum included angle from the calculated first included angles;
determining a first cell direction vector corresponding to the minimum included angle;
and determining a target SCG cell from the cells corresponding to the first cell direction vector.
2. The method of claim 1, wherein determining that the user device is in a mobile state based on the plurality of location information comprises:
calculating a distance value between any two position information in the plurality of position information;
and if the obtained distance value contains a distance value larger than a first threshold value, determining that the user equipment is in a moving state.
3. The method according to claim 1 or 2, wherein calculating a first angle between the movement direction vector and a cell direction vector of the respective cell comprises:
calculating a first included angle between the moving direction vector and the cell direction vector according to the following formula:
wherein ,is the movement direction vector; />Is the cell direction vector.
4. The method of claim 1, wherein the number of first cell direction vectors corresponding to the minimum included angle is a plurality;
determining a target SCG cell from the cells corresponding to the first cell direction vector comprises:
determining a second cell direction vector with the minimum value from a plurality of first cell direction vectors;
and determining a target SCG cell from the cells corresponding to the second cell direction vector.
5. The method of claim 4, wherein the number of cells corresponding to the second cell direction vector is a plurality of cells;
determining a target SCG cell from the cells corresponding to the second cell direction vector comprises:
determining unit vectors of all cells corresponding to the second cell direction vector; the direction of the unit vector is the azimuth angle of the corresponding cell;
respectively calculating a third included angle between the unit vector of each cell and the moving direction vector;
determining a maximum included angle from the calculated third included angles;
and determining the cell corresponding to the maximum included angle as a target SCG cell.
6. An electronic device, comprising:
at least one processor; and
at least one memory communicatively coupled to the processor, wherein:
the memory stores program instructions executable by the processor, the processor invoking the program instructions to perform the method of any of claims 1-5.
7. A non-transitory computer readable storage medium storing computer instructions that cause the computer to perform the method of any one of claims 1 to 5.
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