CN110177379B - Base station access method and system - Google Patents
Base station access method and system Download PDFInfo
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- CN110177379B CN110177379B CN201910474578.3A CN201910474578A CN110177379B CN 110177379 B CN110177379 B CN 110177379B CN 201910474578 A CN201910474578 A CN 201910474578A CN 110177379 B CN110177379 B CN 110177379B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
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- H04W24/00—Supervisory, monitoring or testing arrangements
- H04W24/08—Testing, supervising or monitoring using real traffic
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/16—Discovering, processing access restriction or access information
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W48/00—Access restriction; Network selection; Access point selection
- H04W48/20—Selecting an access point
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W76/00—Connection management
- H04W76/10—Connection setup
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Abstract
The embodiment of the invention discloses a base station access method and a base station access system, and relates to the technical field of communication. The method of the invention comprises the following steps: when detecting that the mobile terminal is in a multi-base station coverage area, the mobile terminal sends a connection initialization request to a plurality of base stations covering the area; in response to the base station receiving the connection initialization request sent by the mobile terminal, the base station calculates various index parameters based on the connection initialization request; the mobile terminal receives various index parameters sent by each base station respectively; and the mobile terminal selects a target base station from the plurality of base stations based on each index parameter corresponding to each base station respectively, and sends a connection establishment request to the target base station. The invention can realize the full utilization of network resources when the mobile terminal accesses the base station.
Description
Technical Field
The present invention relates to the field of communications technologies, and in particular, to a base station access method and system.
Background
With the rapid increase in the number of mobile internet devices, the load traffic carried by the core network increases dramatically. For mobile terminals, many applications face challenges such as latency and computing resources due to resource limitations such as battery, memory, and computing capacity.
Since a large number of cellular base stations will be built in the communication network, it is possible to complete user service requests by cooperation between base stations adjacent to each other. How to select between multiple base stations when a mobile terminal enters an overlapping area covered by the multiple base stations becomes one of the research hotspots in the next generation 5G network. In the prior art, a mobile terminal selects a base station with an optimal signal-to-noise ratio, and establishes communication connection with the base station.
Disclosure of Invention
The embodiment of the invention provides a base station access method and a base station access system, which can realize full utilization of network resources when a mobile terminal accesses a base station.
In order to achieve the above purpose, the embodiment of the present invention adopts the following technical scheme:
in a first aspect, an embodiment of the present invention provides a base station access method, including:
when detecting that the mobile terminal is in a multi-base station coverage area, the mobile terminal sends a connection initialization request to a plurality of base stations covering the area;
in response to the base station receiving the connection initialization request sent by the mobile terminal, the base station calculates various index parameters based on the connection initialization request;
the mobile terminal receives various index parameters sent by each base station respectively;
and the mobile terminal selects a target base station from the plurality of base stations based on each index parameter corresponding to each base station respectively, and sends a connection establishment request to the target base station.
With reference to the first aspect, in a first possible implementation manner of the first aspect, the connection initialization request carries location information of the mobile terminal, an amount of data to be processed of the mobile terminal, and a required QoS service class;
the base station calculates various index parameters based on the connection initialization request, including:
the base station calculates various index parameters based on the connection initialization request and calculation resources of the MEC server calculated by the mobile edge of the base station; wherein, each index parameter includes: any one or any combination of signal-to-noise ratio, time required for service completion, and whether QoS service class can be satisfied.
With reference to the first implementation manner of the first aspect, in a second possible implementation manner of the first aspect, the calculating, by the base station, a time period required for the service to complete includes:
the base station calculates a first time length based on the running state of the current MEC server, wherein the first time length is used for representing waiting time required by the MEC server for processing new data;
the base station calculates a second time length based on the data volume to be processed of the mobile terminal and the calculation resource of the MEC server, wherein the second time length is used for representing the time length required by the base station to process the data volume to be processed;
and the base station takes the sum value of the first time length and the second time length as the time length required by the completion of the service.
With reference to the first aspect, in a third possible implementation manner of the first aspect, the selecting, by the mobile terminal, a target base station from the plurality of base stations based on each index parameter respectively corresponding to each base station includes:
for each base station in the base stations, the mobile terminal carries out weighted scoring on each index parameter of the base station;
and the mobile terminal takes the base station with the highest weighted score value as the target base station.
With reference to the first aspect, in a fourth possible implementation manner of the first aspect, the method further includes:
establishing communication connection between the mobile terminal and the target base station;
when the duration of establishing communication connection reaches a preset duration or the position change of the mobile terminal exceeds a preset range, the mobile terminal sends a connection initialization request to a plurality of base stations covering the current area again, and reselects a target base station from the plurality of base stations based on each index parameter corresponding to each base station respectively.
In a second aspect, embodiments of the present invention provide a base station access system, the system comprising a mobile terminal and a plurality of base stations,
the mobile terminal is used for sending a connection initialization request to a plurality of base stations covering a multi-base station coverage area when the mobile terminal is detected to be in the multi-base station coverage area;
the base station is used for responding to the connection initialization request sent by the mobile terminal received by the base station and calculating various index parameters based on the connection initialization request;
the mobile terminal is further configured to receive each index parameter sent by each base station;
the mobile terminal is further configured to select a target base station from the plurality of base stations based on each index parameter corresponding to each base station, and send a connection establishment request to the target base station.
With reference to the second aspect, in a first possible implementation manner of the second aspect,
the connection initialization request sent by the mobile terminal carries the position information of the mobile terminal, the data quantity to be processed of the mobile terminal and the required QoS service level;
the base station is further configured to calculate each index parameter based on the connection initialization request and a calculation resource of the MEC server calculated by a mobile edge of the base station; wherein, each index parameter includes: any one or any combination of signal-to-noise ratio, time required for service completion, and whether QoS service class can be satisfied.
With reference to the first implementation manner of the second aspect, in a second possible implementation manner of the second aspect,
the base station is further configured to calculate a first duration based on an operation state of a current MEC server, where the first duration is used to characterize a waiting time required by the MEC server to process new data;
the base station is further configured to calculate a second duration based on the amount of data to be processed of the mobile terminal and the computing resource of the MEC server, where the second duration is used to characterize a length of time required for the base station to process the amount of data to be processed;
the base station is further configured to use a sum of the first duration and the second duration as a duration required for completing the service.
With reference to the second aspect, in a third possible implementation manner of the second aspect,
the mobile terminal is further configured to weight and score each index parameter of each base station for each base station in the base stations;
the mobile terminal is further configured to use a base station with a highest weighted score value as the target base station.
With reference to the second aspect, in a fourth possible implementation manner of the second aspect,
the mobile terminal is further used for establishing communication connection with the target base station;
the mobile terminal is further configured to, when a duration of establishing communication connection reaches a preset duration or a position change of the mobile terminal exceeds a preset range, re-send a connection initialization request to a plurality of base stations covering a current area, and re-select a target base station from the plurality of base stations based on each index parameter corresponding to each base station.
According to the method and the system for accessing the base station, when the mobile terminal is detected to be in the multi-base station coverage area, the mobile terminal sends a connection initialization request to a plurality of base stations covering the area; in response to the base station receiving the connection initialization request sent by the mobile terminal, the base station calculates various index parameters based on the connection initialization request; the mobile terminal receives various index parameters sent by each base station respectively; and the mobile terminal selects a target base station from the plurality of base stations based on each index parameter corresponding to each base station respectively, and sends a connection establishment request to the target base station. When connection is established between terminal equipment and a base station facing the industrial Internet in the 5G communication network, factors such as channel signal-to-noise ratio, base station computing resources, user QoS, data quantity to be processed of a mobile terminal and the like are comprehensively considered, so that a target base station with the best data processing effect is selected from a plurality of base stations to establish communication connection, network resources can be more fully utilized, and user service quality is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, 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 invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a flow chart of a base station access method according to an embodiment of the present invention;
fig. 2 is another flow chart of a base station access method according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a multi-base station coverage area in accordance with an embodiment of the present invention;
fig. 4 is a schematic diagram of a mobile terminal and a base station establishing a connection according to an embodiment of the present invention;
fig. 5 is a schematic diagram of a base station access system according to an embodiment of the present invention;
fig. 6 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
An embodiment of the present invention provides a base station access method, as shown in fig. 1, including:
101. when detecting that the mobile terminal is in a multi-base station coverage area, the mobile terminal sends a connection initialization request to a plurality of base stations covering the area.
Wherein, the multi-base station coverage area refers to an overlapping area between a plurality of different base station coverage areas. The connection initialization request sent by the mobile terminal is used for sending the information of the mobile terminal and the required service conditions to the base station, and the base station calculates and feeds back corresponding index parameters so that the mobile terminal can select one most suitable base station from a plurality of base stations to establish connection according to the index parameters.
102. And in response to the base station receiving the connection initialization request sent by the mobile terminal, the base station calculates various index parameters based on the connection initialization request.
103. And the mobile terminal receives each index parameter sent by each base station respectively.
104. And the mobile terminal selects a target base station from the plurality of base stations based on each index parameter corresponding to each base station respectively, and sends a connection establishment request to the target base station.
Compared with the prior art, the method and the system can comprehensively consider factors such as channel signal-to-noise ratio, base station computing resources, user QoS, data quantity to be processed of the mobile terminal and the like when connection is established between the terminal equipment facing the industrial Internet and the base stations in the 5G communication network, select the target base station with the best data processing effect from a plurality of base stations to establish communication connection, more fully utilize network resources and improve user service quality.
Still another embodiment of the present invention provides a base station access method, as shown in fig. 2, including:
201. when detecting that the mobile terminal is in a multi-base station coverage area, the mobile terminal sends a connection initialization request to a plurality of base stations covering the area.
Wherein, the multi-base station coverage area refers to an overlapping area between a plurality of different base station coverage areas. Illustratively, as in the network scenario shown in fig. 2, the terminal device (UE 1) is covered by two base stations (Cell 1, cell 2). The figure shows only two base stations by way of example, it being understood that the number of overlapping areas of coverage is the number of base stations that are actually covered by that location.
The connection initialization request carries the position information of the mobile terminal, the data quantity to be processed of the mobile terminal and the required QoS service level. As shown in fig. 2, UE 1 may send connection initialization requests to Cell1 and Cell 2, respectively, where the request message includes a size D of data to be processed carried by the terminal, a geographic location (X1, Y1) where the terminal is located, qoS class information to be provided, and so on.
202. And responding to the base station receiving the connection initialization request sent by the mobile terminal, and calculating various index parameters by the base station based on the connection initialization request and the calculation resources of the MEC server calculated by the mobile edge of the base station.
Wherein, each index parameter includes: any one or any combination of signal-to-noise ratio, time required for service completion, and whether QoS service class can be satisfied.
For the embodiment of the invention, after receiving the user connection initialization request, the base station analyzes the initialization request message to obtain the basic data information about the user terminal. Then, the base station calculates corresponding indexes according to the information such as storage resources, memory and the like of the MEC server left by the base station, and if the corresponding indexes can meet the QoS required by the user or process the data such as the time required by the data of the user.
In the embodiment of the invention, MEC (Mobile Edge Computing, mobile edge computing technology) refers to that an MEC server with IT service environment and computing and storage capabilities is deployed at the network edge nearest to a user, so that the time delay of network operation and service interaction is reduced, and the service quality of the user is improved.
The base station calculates the time length required for completing the service, and the time length comprises the following steps: the base station calculates a first time length based on the running state of the current MEC server, wherein the first time length is used for representing waiting time required by the MEC server for processing new data; the base station calculates a second time length based on the data volume to be processed of the mobile terminal and the calculation resource of the MEC server, wherein the second time length is used for representing the time length required by the base station to process the data volume to be processed; and the base station takes the sum value of the first time length and the second time length as the time length required by the completion of the service.
Illustratively, a possible method for calculating the index by the base station will be described below by taking the base station to calculate the service delay as an example, and other indexes can be analogized.
Suppose that base station Cell1 is currently MEC garmentThe server is already in full load operation and a waiting time t1 is required to provide computing resources to handle the request of a newly connected terminal. After its resources are freed, the time that is spent processing the requested data can be calculated using the following formula: t is t 2 =f (D, χ), where χ is the computational resource of the MEC server.
It can be further deduced that in the function f, the variable t2 has an inverse correlation with the size of the data D to be processed and a positive correlation with the computing resource χ.
Therefore, if the user is connected to the base station, the total time t required to complete the service can be calculated as: t=t 1 +t 2 。
In order to simplify the calculation, the waiting time and the calculation time are emphasized here, and the time such as the communication round trip delay is omitted, and the algorithm may be added to the total time.
203. And the mobile terminal receives each index parameter sent by each base station respectively.
For the embodiment of the invention, the base station packages the data in response messages according to the agreed format, returns the response messages to the user terminal, and the user terminal locally maintains a base station list { C }, in the equipment 1 ,C 2 ,...,C n And (n represents the number of base stations covering the terminal device).
204. And for each base station in the base stations, the mobile terminal performs weighted scoring on each index parameter of the base station.
For the embodiment of the invention, weighting scoring or further mathematical processing is performed according to various index data returned by the base station. For example, the terminal may score the base station according to a linear weighting model. Assuming that index parameter returned by base station is x 1 ,x 2 ,...,x m The terminal assigns a weight system w to each index 1 ,w 2 ,...,w m Its weighted sum X can be calculated according to the formula:
wherein m represents a terminal device referenceAnd X represents the scoring condition of the current state of the base station for the terminal equipment. And then the user terminal initiates a connection request to the base station with the highest score to finish the subsequent data interaction communication.
205. And the mobile terminal takes the base station with the highest weighted score value as the target base station.
206. And the mobile terminal sends a connection establishment request to the target base station.
207. And establishing communication connection between the mobile terminal and the target base station.
Optionally, when the duration of establishing the communication connection reaches a preset duration or the position change of the mobile terminal exceeds a preset range, the mobile terminal re-sends a connection initialization request to a plurality of base stations covering the current area, and re-selects a target base station from the plurality of base stations based on each index parameter respectively corresponding to each base station.
When the mobile terminal establishes connection with the current base station for 5 minutes, the connection initialization request is resent to each base station covered by the current area again, so that the mobile terminal reselects the most suitable base station in the current state to establish connection; or, when the position of the mobile terminal has changed by more than 20 meters, retransmitting a connection initialization request to each base station covered by the current area again, so that the mobile terminal reselects the most suitable base station in the current state to establish connection.
In the embodiment of the invention, when the preset condition is met, the mobile terminal resends the connection initialization request to each base station and reselects the most suitable base station in the current state to establish connection, so that the situation that the mobile terminal always establishes connection with the base station after the connection is established and the base station is not the most suitable base station for establishing connection at present can be avoided.
The embodiment of the invention comprehensively considers factors such as channel signal-to-noise ratio, base station computing resource, user QoS and the like when the connection is established between the terminal equipment facing the industrial Internet and the base station in the 5G communication network. Compared with the prior art, the method and the device can more fully utilize network resources and improve the service quality of users.
Illustratively, as shown in fig. 4, a specific time sequence of mobile terminal requests data is shown. When the mobile terminal enters the overlapping coverage area of multiple base stations, the terminal detection module finds multiple base stations, and sends connection initialization requests to the multiple base stations respectively, wherein the messages of the connection initialization requests carry mobile terminal position information, data quantity information to be calculated and the like, as shown in step 1 in fig. 4. After receiving the connection initialization request message, the base station 1 activates the corresponding module, and calculates the indexes such as "return time" by combining the resources of the MEC server, as shown in step 2 of fig. 4. Secondly, the base station returns the calculation result to the mobile terminal, as shown in step 3 of fig. 4. And (3) repeating the steps 1-3 for different base stations by the mobile terminal, and finally obtaining the information of all the base stations in the area. Finally, the mobile terminal scores each base station according to the returned data, maintains a base station list locally, and selects the base station with the highest score to establish communication connection with, as shown in step 4 of fig. 4. Meanwhile, the mobile terminal sends a request for establishing communication connection to the optimal base station, as shown in step 5 of fig. 4.
The embodiment of the invention discloses a method for selecting a base station by industrial Internet terminal equipment in a next generation communication network system, belonging to the technical field of future networks.
The embodiment of the invention provides a base station selection method based on edge calculation for industrial Internet in a 5G communication network system. By sending the load information, the location information, the requested QoS, etc. data of the terminal to the base station MEC server, the base station can obtain the requirements of the terminal more accurately. And then according to the capability (such as memory size calculation and server storage resource) of the terminal, various technical indexes which can be provided for the terminal are analyzed and calculated. After acquiring the data of the coverage base station, the mobile terminal preferentially selects the base station which is most suitable for itself, and establishes communication connection. Therefore, the aim of optimizing network resources and improving the service quality of users is fulfilled.
Compared with the prior art, the method and the system can comprehensively consider factors such as channel signal-to-noise ratio, base station computing resources, user QoS, data quantity to be processed of the mobile terminal and the like when connection is established between the terminal equipment facing the industrial Internet and the base stations in the 5G communication network, select the target base station with the best data processing effect from a plurality of base stations to establish communication connection, more fully utilize network resources and improve user service quality.
A further embodiment of the present invention provides a base station access system, as shown in fig. 5, comprising a mobile terminal 51 and a plurality of base stations 52.
The mobile terminal 51 is configured to send a connection initialization request to a plurality of base stations covering a multi-base station coverage area when detecting that the mobile terminal is in the area;
the base station 52 is configured to calculate, in response to the base station receiving the connection initialization request sent by the mobile terminal, each index parameter based on the connection initialization request;
the mobile terminal 51 is further configured to receive each index parameter sent by each base station;
the mobile terminal 51 is further configured to select a target base station from the plurality of base stations based on each index parameter corresponding to each base station, and send a connection establishment request to the target base station.
The connection initialization request sent by the mobile terminal 51 carries the location information of the mobile terminal, the data size to be processed of the mobile terminal, and the required QoS service class;
the base station 52 is further configured to calculate each index parameter based on the connection initialization request and a calculation resource of the MEC server calculated by a mobile edge of the base station; wherein, each index parameter includes: any one or any combination of signal-to-noise ratio, time required for service completion, and whether QoS service class can be satisfied.
The base station 52 is further configured to calculate a first time period based on the current operation state of the MEC server, the first time period being used to characterize a waiting time required for the MEC server to process new data;
the base station 52 is further configured to calculate, based on the amount of data to be processed by the mobile terminal and the computing resource of the MEC server, a second time period, where the second time period is used to characterize a time period required for the base station to process the amount of data to be processed;
the base station 52 is further configured to use the sum of the first duration and the second duration as a duration required for completing the service.
The mobile terminal 51 is further configured to weight and score each index parameter of each base station for each base station in the base stations;
the mobile terminal 51 is further configured to use, as the target base station, a base station with the highest weighted score value.
The mobile terminal 51 is further configured to establish a communication connection with the target base station;
the mobile terminal 51 is further configured to, when a duration of establishing a communication connection reaches a preset duration or a position change of the mobile terminal exceeds a preset range, re-send a connection initialization request to a plurality of base stations covering a current area, and re-select a target base station from the plurality of base stations based on each index parameter corresponding to each base station.
Compared with the prior art, the method and the system can comprehensively consider factors such as channel signal-to-noise ratio, base station computing resources, user QoS, data quantity to be processed of the mobile terminal and the like when connection is established between the terminal equipment facing the industrial Internet and the base stations in the 5G communication network, select the target base station with the best data processing effect from a plurality of base stations to establish communication connection, more fully utilize network resources and improve user service quality.
The embodiment of the present invention also provides another computer-readable storage medium, which may be a computer-readable storage medium contained in the memory in the above embodiment; or may be a computer-readable storage medium, alone, that is not incorporated into the terminal. The computer readable storage medium stores one or more programs for use by one or more processors to perform the base station access method provided by the embodiments shown in fig. 1 and 2.
The base station access system provided by the embodiment of the present invention can implement the method embodiment provided above, and specific function implementation is referred to the description in the method embodiment and is not repeated herein. The base station access method and the base station access system provided by the embodiment of the invention can be suitable for the mobile terminal to select the base station for access in the coverage area of multiple base stations, but are not limited to the method and the system.
As shown in fig. 6, the mobile terminal 51 may be a mobile phone, a computer, a digital broadcasting terminal, a messaging device, a game console, a tablet, a personal digital assistant, or the like.
Referring to fig. 6, the mobile terminal 51 may include one or more of the following components: a processing component 602, a memory 604, a power component 606, a multimedia component 608, an audio component 610, an input/output (I/O) interface 612, a sensor component 614, and a communication component 616.
The processing component 602 generally controls overall operation of the drone control device 600, such as operations associated with display, phone calls, data communications, camera operations, and recording operations. The processing component 602 may include one or more processors 620 to execute instructions.
Further, the processing component 602 can include one or more modules that facilitate interaction between the processing component 602 and other components. For example, the processing component 602 may include a multimedia module to facilitate interaction between the multimedia component 608 and the processing component 602.
The memory 604 is configured to store various types of data to support operation at the drone control device 600. Examples of such data include instructions for any application or method operating on the drone control 600, contact data, phonebook data, messages, pictures, video, and the like. The memory 604 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.
The power supply assembly 606 provides power to the various components of the drone control device 600. The power components 606 may include a power management system, one or more power sources, and other components associated with generating, managing, and distributing power for the drone control 600.
The multimedia component 608 comprises a screen between the drone control 600 and the user that provides an output interface. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive input signals from a user. The touch panel includes one or more touch sensors to sense touches, swipes, and gestures on the touch panel. The touch sensor may sense not only the boundary of a touch or slide action, but also the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 608 includes a front camera and/or a rear camera. When the drone control 600 is in an operational mode, such as a shooting mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.
The audio component 610 is configured to output and/or input audio signals. For example, the audio component 610 includes a Microphone (MIC) configured to receive external audio signals when the drone control 600 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 604 or transmitted via the communication component 616. In some embodiments, audio component 610 further includes a speaker for outputting audio signals.
The I/O interface 612 provides an interface between the processing component 602 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.
The sensor assembly 614 includes one or more sensors for providing status assessment of various aspects of the drone control 600. For example, the sensor assembly 614 may detect the open/closed state of the drone control 600, the relative positioning of the assemblies, such as the display and keypad of the drone control 600, the sensor assembly 614 may also detect a change in position of the drone control 600 or one of the assemblies of the drone control 600, the presence or absence of a user's contact with the drone control 600, the position or acceleration/deceleration of the drone control 600, and a change in temperature of the drone control 600. The sensor assembly 614 may include a proximity sensor configured to detect the presence of nearby objects in the absence of any physical contact. The sensor assembly 614 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 614 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.
The communication component 616 is configured to facilitate wired or wireless communication between the drone 600 and other devices. The drone control device 600 may access a wireless network based on a communication standard, such as WiFi,2G, or 3G, or a combination thereof. In one exemplary embodiment, the communication component 616 receives broadcast signals or broadcast-related information from an external broadcast management system via a broadcast channel. In one exemplary embodiment, the communication component 616 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.
In an exemplary embodiment, the drone control apparatus 600 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic elements.
In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments. In particular, for the apparatus embodiments, since they are substantially similar to the method embodiments, the description is relatively simple, and reference is made to the description of the method embodiments for relevant points.
Those skilled in the art will appreciate that implementing all or part of the above-described methods in accordance with the embodiments may be accomplished by way of a computer program stored on a computer readable storage medium, which when executed may comprise the steps of the embodiments of the methods described above. The storage medium may be a magnetic disk, an optical disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), or the like.
The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present invention should be included in the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (6)
1. A base station access method, comprising:
when detecting that the mobile terminal is in a multi-base station coverage area, the mobile terminal sends a connection initialization request to a plurality of base stations covering the area;
in response to the base station receiving the connection initialization request sent by the mobile terminal, the base station calculates various index parameters based on the connection initialization request;
the base station encapsulates the index parameters in response messages according to a stipulated format and sends the response messages to the mobile terminal;
the mobile terminal receives each index parameter sent by each base station and maintains a corresponding base station list locally
Wherein n represents the number of base stations covering the mobile terminal;
the mobile terminal selects a target base station from the plurality of base stations based on each index parameter corresponding to each base station respectively, and sends a connection establishment request to the target base station;
the connection initialization request carries the position information of the mobile terminal, the data quantity to be processed of the mobile terminal and the required QoS service level;
the base station calculates various index parameters based on the connection initialization request, including:
the base station calculates various index parameters based on the connection initialization request and calculation resources of the MEC server calculated by the mobile edge of the base station; wherein, each index parameter includes: any one or any combination of signal-to-noise ratio, time length required for completing service and QoS service grade meeting;
the base station calculates the time length required for completing the service, and the time length comprises the following steps:
the base station calculates a first time length based on the running state of the current MEC server, wherein the first time length is used for representing waiting time required by the MEC server for processing new data; the base station calculates a second time length based on the data volume to be processed of the mobile terminal and the calculation resource of the MEC server, wherein the second time length is used for representing the time length required by the base station to process the data volume to be processed; and the base station takes the sum value of the first time length and the second time length as the time length required by the completion of the service.
2. The base station access method according to claim 1, wherein the mobile terminal selects a target base station from the plurality of base stations based on each index parameter respectively corresponding to each base station, comprising:
for each base station in the base stations, the mobile terminal carries out weighted scoring on each index parameter of the base station;
and the mobile terminal takes the base station with the highest weighted score value as the target base station.
3. The base station access method of claim 1, further comprising:
establishing communication connection between the mobile terminal and the target base station;
when the duration of establishing communication connection reaches a preset duration or the position change of the mobile terminal exceeds a preset range, the mobile terminal sends a connection initialization request to a plurality of base stations covering the current area again, and reselects a target base station from the plurality of base stations based on each index parameter corresponding to each base station respectively.
4. A base station access system, characterized in that the system comprises a mobile terminal and a plurality of base stations,
the mobile terminal is used for sending a connection initialization request to a plurality of base stations covering a multi-base station coverage area when the mobile terminal is detected to be in the multi-base station coverage area;
the base station is used for responding to the connection initialization request sent by the mobile terminal received by the base station and calculating various index parameters based on the connection initialization request;
the base station encapsulates the index parameters in response messages according to a stipulated format and sends the response messages to the mobile terminal;
the mobile terminal is further configured to receive each index parameter sent by each base station, and locally maintain a corresponding base station list
Wherein n represents the number of base stations covering the mobile terminal;
the mobile terminal is further configured to select a target base station from the plurality of base stations based on each index parameter corresponding to each base station, and send a connection establishment request to the target base station;
the connection initialization request sent by the mobile terminal carries the position information of the mobile terminal, the data quantity to be processed of the mobile terminal and the required QoS service level;
the base station is further configured to calculate each index parameter based on the connection initialization request and a calculation resource of the MEC server calculated by a mobile edge of the base station; wherein, each index parameter includes: any one or any combination of signal-to-noise ratio, time length required for completing service and QoS service grade meeting;
the base station is further configured to calculate a first duration based on an operation state of a current MEC server, where the first duration is used to characterize a waiting time required by the MEC server to process new data; calculating a second time length based on the data volume to be processed of the mobile terminal and the calculation resource of the MEC server, wherein the second time length is used for representing the time length required by the base station to process the data volume to be processed; and taking the sum value of the first time length and the second time length as the time length required by the completion of the service.
5. The base station access system of claim 4, wherein,
the mobile terminal is further configured to weight and score each index parameter of each base station for each base station in the base stations;
the mobile terminal is further configured to use a base station with a highest weighted score value as the target base station.
6. The base station access system of claim 4, wherein,
the mobile terminal is further used for establishing communication connection with the target base station;
the mobile terminal is further configured to, when a duration of establishing communication connection reaches a preset duration or a position change of the mobile terminal exceeds a preset range, re-send a connection initialization request to a plurality of base stations covering a current area, and re-select a target base station from the plurality of base stations based on each index parameter corresponding to each base station.
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| EP2505009B1 (en) * | 2009-11-23 | 2017-08-16 | Alcatel Lucent | Cooperative communications in cellular networks |
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