CN111432444B - Network connection method, device, storage medium and terminal - Google Patents

Network connection method, device, storage medium and terminal Download PDF

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Publication number
CN111432444B
CN111432444B CN202010153289.6A CN202010153289A CN111432444B CN 111432444 B CN111432444 B CN 111432444B CN 202010153289 A CN202010153289 A CN 202010153289A CN 111432444 B CN111432444 B CN 111432444B
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cell
frequency band
target
mode
terminal
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CN111432444A (en
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朱中华
邵俊骏
程滨
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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Yulong Computer Telecommunication Scientific Shenzhen Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0061—Transmission or use of information for re-establishing the radio link of neighbour cell information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
    • H04W36/00835—Determination of neighbour cell lists
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/24—Reselection being triggered by specific parameters
    • H04W36/30—Reselection being triggered by specific parameters by measured or perceived connection quality data
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Abstract

The embodiment of the application discloses a network connection method, a network connection device, a storage medium and a terminal, and belongs to the technical field of computers. The method is applied to a terminal supporting a non-independent networking mode, when it is determined that a 4G serving cell of the terminal does not support an EN-DC mode, one or more 4G adjacent cells around the 4G serving cell are searched, a target 4G cell is selected from the one or more 4G adjacent cells, the target 4G cell supports the EN-DC mode and meets a first preset signal quality condition, the 4G serving cell is switched to the target 4G cell, and 5G network connection is established through the target 4G cell. By the method, the terminal can be connected to the 5G network with good signal quality, the success rate of 5G network connection is effectively improved, and the 5G communication experience of a user is enhanced.

Description

Network connection method, device, storage medium and terminal
Technical Field
The present application relates to the field of computer technologies, and in particular, to a network connection method, an apparatus, a storage medium, and a terminal.
Background
With the continuous development of 5G (5th generation mobile communication technology), early network deployment is performed in a non-independent networking mode in a 5G network, and a user using a 5G terminal supporting a non-independent networking mode for communication can obtain a faster and more efficient communication transmission experience. In the related art, since the non-independent networking mode still needs to rely on an LTE (Long Term Evolution) core network to establish a 5G network connection, the success rate of the 5G network connection is low, and the connected 5G network is unstable, which causes poor communication experience for users.
Disclosure of Invention
The embodiment of the application provides a network connection method, a network connection device, a storage medium and a terminal, which can solve the problems that the success rate of 5G network connection is low and the connected 5G network is unstable in a network mode of non-independent networking. The technical scheme is as follows:
in a first aspect, an embodiment of the present application provides a method for connecting a network, where the method includes:
searching for one or more 4G neighbor cells surrounding a 4G serving cell when it is determined that the 4G serving cell does not support the EN-DC mode;
selecting a target 4G cell among the one or more 4G neighbor cells; wherein the target 4G cell supports the EN-DC mode and satisfies a first preset signal quality condition;
switching from the 4G serving cell to the target 4G cell, and establishing a 5G network connection through the target 4G cell.
In a second aspect, an embodiment of the present application provides a connection apparatus for a network, where the apparatus includes:
the device comprises a searching module, a judging module and a judging module, wherein the searching module is used for searching one or more 4G adjacent cells around a 4G serving cell when the 4G serving cell is determined not to support an EN-DC mode;
a selection module to select a target 4G cell among the one or more 4G neighbor cells; wherein the target 4G cell supports the EN-DC mode and satisfies a first preset signal quality condition;
and the processing module is used for switching from the 4G service cell to the target 4G cell and establishing 5G network connection through the target 4G cell.
In a third aspect, embodiments of the present application provide a computer storage medium storing a plurality of instructions adapted to be loaded by a processor and to perform the above-mentioned method steps.
In a fourth aspect, an embodiment of the present application provides a terminal, including: the system comprises a processor, a memory and a display screen; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the above-mentioned method steps.
The beneficial effects brought by the technical scheme provided by some embodiments of the application at least comprise:
when the scheme of the embodiment of the application is executed, when it is determined that the 4G serving cell of the terminal does not support the EN-DC mode, one or more 4G neighbor cells around the 4G serving cell are searched, a target 4G cell is selected from the one or more 4G neighbor cells, the target 4G cell supports the EN-DC mode and meets a first preset signal quality condition, the 4G serving cell is switched to the target 4G cell, and a 5G network connection is established through the target 4G cell. By the method, the terminal can be connected to the 5G network with good signal quality, the success rate of 5G network connection is effectively improved, and the 5G communication experience of a user is enhanced.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a communication system architecture provided in the present application;
fig. 2 is a flowchart illustrating a method for connecting a network according to an embodiment of the present application;
fig. 3 is another schematic flow chart of a network connection method according to an embodiment of the present application;
fig. 4 is another schematic flow chart of a network connection method according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a connection method of a network according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of a terminal according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application, as detailed in the appended claims.
In the description of the present application, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art. "and/or" describes the association relationship of the associated objects, meaning that there may be three relationships, e.g., a and/or B, which may mean: a exists alone, A and B exist simultaneously, and B exists alone. The character "/" generally indicates that the former and latter associated objects are in an "or" relationship.
In order to make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of a communication system architecture provided in the present application.
Referring to fig. 1, the communication system includes a user terminal 100, an LTE base station 110, an NR base station 120, and a core network 130. The LTE base station 110 may provide 4G network wireless access for one or more user terminals 100 within a coverage area, enabling the user terminals to communicate with each other; NR base station 120 may provide 5G network radio access for one or more user terminals 100 within a coverage area to enable the user terminals to communicate with each other. In the 5G dependent networking system, the LTE base station 110 and the NR base station 120 share the core network 130, and data, signaling, and the like are transmitted with one of the LTE base station 110 and the NR base station 120 as a primary station and the other as a secondary station.
The user Terminal 100 includes, but is not limited to, a Mobile Station (MS), a Mobile Terminal device (Mobile Terminal), a Mobile phone (Mobile Telephone), a handset (handset), a portable device (portable equipment), etc., and the Terminal device may communicate with one or more core networks via a Radio Access Network (RAN), for example, the Terminal device may be a Mobile phone (or referred to as a "cellular" phone), a computer with a wireless communication function, etc., and the Terminal device may also be a portable, pocket, hand-held, computer-built-in or vehicle-mounted Mobile device or apparatus.
A base station, i.e. a public mobile communication base station, is an interface device for a mobile device to access the internet, and is a form of a radio station, which is a radio transceiver station for information transmission with a mobile phone terminal through a mobile communication switching center in a certain radio coverage area. The base station can also be called a base station system and consists of a plurality of independent base station devices, and a complete base station device also comprises a power supply, a storage battery, an air conditioner, security monitoring and other matched devices. The LTE Base station 110 mainly includes three parts, namely, a BBU (Building Base band Unit), an RRU (Radio Remote Unit), and a Radio frequency antenna, where the BBU is mainly responsible for signal modulation, the RRU is mainly responsible for Radio frequency processing, and the antenna is mainly responsible for conversion between cable uplink guided waves and spatial waves in the air. Compared with the LTE base station, the NR base station 120 combines an RRU and a radio frequency Antenna before the LTE base station into an AAU (Active Antenna Unit), and connects the AAU with a BBU through an optical fiber. According to the station type size and power of the base station, the base station can be divided into a Macro base station (Macro Site), a Micro base station (Micro Site), a Pico base station (Pico Site) and a Femto base station (Femto Site): the single carrier transmitting power of the macro base station is more than 10W, and the coverage radius is more than 200 meters; the single carrier transmitting power of the micro base station is 500mW to 10W, and the coverage radius is 50 meters to 200 meters; the single carrier transmitting power of the pico-base station is between 100mW and 500mW, and the coverage radius is between 20 meters and 50 meters; the single carrier transmission power of the femto base station is less than 100mW, and the coverage radius is between 10 meters and 20 meters.
The core network 130 is the most core part of the communication network, and is an information processing center, and generally, one core network can process data of thousands or tens of thousands of base stations, and is mainly responsible for processing and routing of data. The core network 130 can provide user connection, user management, and service bearer functions, and can serve as a bearer network to provide an interface to an external network; the establishment of user connection includes functions such as MM (Mobile Management), CM (Call Management), switching/routing, recording notification (connection relation to intelligent network peripheral equipment is completed by combining intelligent network service); the user management comprises user description, description of Quality of Service (Qos) of a user, user communication record (Accounting), VHE (Virtual Home Environment) provided by a session with an intelligent network platform, and security (corresponding security measures provided by an authentication center); service bearers include PSTN (Public Switched Telephone Network), external circuit data networks and packet data networks, Internet (Internet) and Intranets (Intranets), and SMS (Short Message Service) to the outside, among others.
In the following method embodiments, for convenience of description, only the main execution body of each step is described as a terminal.
The following describes in detail a connection method of a network according to an embodiment of the present application with reference to fig. 2 to 3.
Referring to fig. 2, a flow chart of a network connection method is provided in an embodiment of the present application. The present embodiment is exemplified by applying a network connection method to a terminal, where the network connection method may include the following steps:
s201, when the 4G serving cell is determined not to support the EN-DC mode, one or more 4G adjacent cells around the 4G serving cell are searched.
The 4G (the 4th generation mobile communication technology) serving cell refers to an area where the terminal can currently obtain a 4G network service, and is a cell divided from the entire 4G communication serving cell, and a 4G base station is provided in the cell and is responsible for establishing a wireless connection with the terminal in the cell, so that the 4G terminal can perform 4G communication in any cell in the 4G communication serving cell. The 4G neighbor cell refers to a 4G cell adjacent to a current 4G serving cell in cellular communication, and is a target cell that a terminal may select for when switching the current serving cell. The EN-DC (EUTRA-NR Dual Connection) mode refers to a Dual-Connection network mode of a 4G Radio access network and a 5G NR (5G New Radio, global 5G standard), that is, an EN-DC (option 3) architecture in a New wireless Dual-Connection architecture of 4G LTE and 5G NR for non-independent networking: in a non-independent networking mode, the UE establishes connection with a 4G core network, and simultaneously uses radio resources of at least two different base stations (the 4G base station is a master station and the 5G base station is a slave station), and carries Data offloading to the at least two different base stations on a Packet Data Convergence Protocol (PDCP) layer, where the PDCP layer on the master station is responsible for PDU (Protocol Data Unit) numbering, Data offloading and aggregation between the master and slave stations, and the like.
Generally, when a terminal supporting non-independent networking establishes network connection in a current 4G serving cell, it needs to determine whether the current 4G serving cell supports an EN-DC mode, if the current 4G serving cell supports the EN-DC mode, the terminal may establish network connection through the 4G serving cell, and if the current 4G serving cell does not support the EN-DC mode, the terminal needs to search one or more 4G neighboring cells around the 4G serving cell to find the 4G cell supporting the EN-DC mode.
S202, a target 4G cell is selected among the one or more 4G neighboring cells.
The 4G neighboring cell refers to a 4G cell adjacent to the current 4G serving cell in cellular communication, and is a target cell that the terminal can select when switching the current serving cell. The target 4G cell refers to a 4G cell that supports the EN-DC mode and satisfies a first preset signal quality condition among 4G neighbor cells. The signal quality is a factor influencing the network transmission performance, the signal quality is influenced by channel capacity, channel bandwidth, signal-to-noise ratio, bit error rate and the like, and the first preset signal quality condition is a signal quality condition which needs to be met by the 4G cell and is used for measuring the stability of data transmission of the 4G cell.
Generally, after one or more 4G neighboring cells around the 4G serving cell are searched, a 4G cell satisfying a preset condition is selected from the one or more 4G neighboring cells according to the preset condition as a target 4G cell. The preset conditions include: the EN-DC mode is supported and a first preset signal quality condition is satisfied.
S203, handover from the 4G serving cell to the target 4G cell, and establishing a 5G network connection through the target 4G cell.
The 5G network connection refers to a network connection through which the terminal can transmit data and establish communication through the 5G cell.
Generally, after a target 4G cell is selected from one or more 4G neighboring cells, a terminal switches a current 4G serving cell to the target 4G cell, and establishes a 5G network connection through the target 4G cell. There are various ways to establish a 5G network connection through the target 4G cell:
optionally, a 5G frequency band associated with the 4G frequency band of the target 4G cell is queried in the EN-DC frequency band set, one or more 5G cells are searched based on the 5G frequency band, a target 5G cell is selected from the one or more 5G cells, and a 5G network connection is established through the target 5G cell and the target 4G cell. The EN-DC frequency band set comprises one or more frequency band groups, and the frequency band groups comprise 4G frequency bands and 5G frequency bands.
Optionally, one or more 5G cells are searched, a 5G frequency band associated with the 4G frequency band of the target 4G cell is queried in the EN-DC frequency band set, a 5G cell set is screened from the one or more 5G cells based on the 5G frequency band, a 5G cell with the best signal quality is selected from the 5G cell set as the target 5G cell, and a 5G network connection is established through the target 5G cell and the target 4G cell. The EN-DC frequency band set comprises one or more frequency band groups, and the frequency band groups comprise 4G frequency bands and 5G frequency bands.
As can be seen from the above, according to the network connection method provided by the present solution, when it is determined that the 4G serving cell of the terminal does not support the EN-DC mode, one or more 4G neighboring cells around the 4G serving cell are searched, a target 4G cell is selected from the one or more 4G neighboring cells, the target 4G cell supports the EN-DC mode and satisfies a first preset signal quality condition, the 4G serving cell is switched to the target 4G cell, and a 5G network connection is established through the target 4G cell. By the method, the terminal can be connected to the 5G network with good signal quality, the success rate of 5G network connection is effectively improved, and the communication experience of a user is enhanced.
Referring to fig. 3, another flow chart of a network connection method is provided in the present embodiment. The present embodiment is exemplified by applying a network connection method to a terminal. The connection method of the network may include the steps of:
s301, determining the operator information of the terminal equipment.
The operator information refers to an operator corresponding to a Subscriber Identity Module (SIM) currently used by the terminal device.
Generally, operator information corresponding to a SIM card currently used in a terminal device needs to be determined to further determine an EN-DC mode corresponding to the operator.
S302, acquiring an EN-DC frequency band set associated with the operator information.
The EN-DC frequency band set comprises one or more frequency band groups, each frequency band group comprises a 4G frequency band and a 5G frequency band, the 4G frequency band and the 5G frequency band are in one-to-one correspondence, one frequency band group comprises a pair of the 4G frequency band and the 5G frequency band which correspond to each other, and the EN-DC modes corresponding to different operators are different, so that the EN-DC frequency band set is also different.
Generally, an EN-DC mode corresponding to an operator is obtained by analyzing operator information of a SIM card in a terminal device, and then an EN-DC frequency band set associated with the operator is determined, and when a terminal in a non-independent networking mode needs to obtain a 5G network service when a frequency band combination of a current 4G serving cell and a 5G serving cell belongs to a frequency band group in the EN-DC frequency band set.
S303, judging whether the 4G frequency band of the 4G service cell is located in the EN-DC frequency band set.
The 4G service cell is an area where the terminal can currently obtain a 4G network service, and is a cell divided from the whole 4G communication service area, and a 4G base station is arranged in the cell and is responsible for establishing wireless connection with the terminal in the cell, so that the 4G terminal can perform 4G communication in any cell in the 4G communication service area.
Generally, whether a 4G serving cell of a terminal supports an EN-DC mode is determined by judging whether the 4G frequency band of the current 4G serving cell is located in an EN-DC frequency band set corresponding to an operator of a current SIM card in the terminal, and further, whether the terminal can obtain a 5G network service through the current 4G serving cell is determined.
And S304, searching one or more 4G adjacent cells around the 4G serving cell when the 4G serving cell is determined not to support the EN-DC mode.
The 4G neighboring cell refers to a 4G cell adjacent to the current 4G serving cell in cellular communication, and is a target cell that the terminal can select when switching the current serving cell. The EN-DC mode refers to a dual connectivity network mode of a 4G radio access network and a 5G NR, i.e. an EN-DC (option 3) architecture in a new wireless dual connectivity architecture of 4G LTE and 5G NR for non-independent networking: in the non-independent networking mode, the UE establishes connection with a 4G core network, simultaneously uses radio resources of at least two different base stations (the 4G base station is a main station and the 5G base station is a slave station), carries data shunting to the at least two different base stations on a PDCP layer, and the PDCP layer on the main station is responsible for PDU numbering, data shunting and aggregation between the main station and the slave station and the like.
Generally, when it is determined that the current 4G serving cell does not support the EN-DC mode, the terminal needs to search for a 4G cell capable of supporting the EN-DC mode by searching for one or more 4G neighbor cells around the current 4G serving cell.
S305, acquiring the 4G frequency bands corresponding to one or more 4G adjacent cells.
The 4G frequency band is different according to different operators, each operator has a corresponding 4G frequency band, and the 4G cell supporting the EN-DC mode is determined by analyzing the 4G frequency band corresponding to the 4G adjacent cell.
S306, screening out a 4G cell set supporting an EN-DC mode according to the 4G frequency bands corresponding to one or more 4G adjacent cells respectively.
Generally, after one or more 4G neighboring cells around a 4G serving cell are searched, a 4G frequency band corresponding to the one or more 4G neighboring cells is analyzed, and 4G cells supporting an EN-DC mode corresponding to an operator of a SIM card in a terminal are screened out to construct a 4G cell set supporting the EN-DC mode.
S307, the 4G cell with the best signal quality is selected from the 4G cell set as the target 4G cell.
The first preset signal quality condition is a signal quality condition which needs to be met by the 4G cell and is used for measuring the stability of data transmission of the 4G cell.
Generally, after the 4G cell set supporting the EN-DC mode is screened out, a 4G cell with the best signal quality needs to be further selected from the 4G cell set as a target 4G cell, so as to ensure that the 4G cell providing the 4G service for the terminal can maintain a stable data transmission state.
S308, handover is performed from the 4G serving cell to the target 4G cell.
Generally, after selecting a 4G cell with the best signal quality from the 4G cell set as a target 4G cell, the terminal switches the current 4G serving cell to the target 4G cell, and makes the target 4G cell be the current serving cell of the terminal.
S309, inquiring a 5G frequency band associated with the 4G frequency band of the target 4G cell in the EN-DC frequency band set.
The 5G frequency bands are different according to different operators (that is, the operators can support different EN-DC modes), each operator has a corresponding 5G frequency band, and the 5G frequency band corresponding to the 4G frequency band in the EN-DC frequency band set can be determined by analyzing the 4G frequency band of the target 4G cell.
And S310, searching one or more 5G cells based on the 5G frequency band.
Generally, after a 5G frequency band associated with a 4G frequency band of a target 4G cell is queried in an EN-DC frequency band set, a 5G cell consistent with the 5G frequency band can be searched according to the 5G frequency band, so that searching for the 5G cell is more targeted.
S311, a target 5G cell is selected among the one or more 5G cells.
Generally, after one or more 5G cells consistent with the 5G frequency band are searched according to the determined 5G frequency band, the 5G cell meeting the preset signal quality condition needs to be searched from the one or more 5G cells as a target 5G cell.
S312, a 5G network connection is established through the target 5G cell and the target 4G cell.
The 5G network connection refers to a network connection through which the terminal can transmit data and establish communication through the 5G cell.
Generally, after a target 4G cell is selected from one or more 4G neighboring cells, a terminal determines a 5G frequency band supporting an EN-DC mode according to a 4G frequency band corresponding to the target 4G cell, searches and searches for a 5G cell satisfying a preset signal quality condition as the target 5G cell according to the 5G frequency band, then uses the target 4G cell as a current 4G serving cell of the terminal, uses the target 5G cell as a current 5G serving cell of the terminal, and establishes a 5G network connection through the 4G serving cell and the 5G serving cell. The 5G service cell is an area where a terminal can obtain 5G network service, and is a cell divided from the whole 5G communication service area, wherein a 5G base station is arranged in the cell and is responsible for establishing wireless connection with the terminal in the cell, and the 5G service cell supports that the 5G terminal can carry out 5G communication in any cell in the 5G communication service area.
As can be seen from the above, the network connection method provided in this scheme determines operator information of a terminal device, obtains an EN-DC frequency band set associated with the operator information, determines whether a 4G frequency band of a 4G serving cell is located in the EN-DC frequency band set, determines that the 4G serving cell does not support an EN-DC mode if the 4G frequency band of the 4G serving cell is not located in the EN-DC frequency band set, searches for one or more 4G neighboring cells around the 4G serving cell, obtains a 4G frequency band corresponding to each of the one or more 4G neighboring cells, screens out a 4G cell set supporting the EN-DC mode according to the 4G frequency band corresponding to each of the one or more 4G neighboring cells, selects a 4G cell with the best signal quality from the 4G cell set as a target 4G cell, switches from the 4G serving cell to the target 4G cell, inquiring a 5G frequency band associated with the 4G frequency band of the target 4G cell in the EN-DC frequency band set, searching one or more 5G cells based on the 5G frequency band, selecting the target 5G cell from the one or more 5G cells, and establishing 5G network connection through the target 5G cell and the target 4G cell. By the method, the 4G service cell and the 5G service cell are searched in a targeted manner, the success rate of the terminal connected with the 5G network is improved, the stability of the 5G network is ensured, and the 5G communication experience of the user is enhanced.
Referring to fig. 4, another flow chart of a network connection method is provided in the present embodiment. The present embodiment is exemplified by applying a network connection method to a terminal. The connection method of the network may include the steps of:
s401, determining the operator information of the terminal equipment.
The operator information refers to an operator corresponding to a SIM card currently used by the terminal device.
Generally, operator information corresponding to a SIM card currently used in a terminal device needs to be determined to further determine an EN-DC mode corresponding to the operator.
S402, acquiring an EN-DC frequency band set associated with the operator information.
The EN-DC frequency band set comprises one or more frequency band groups, each frequency band group comprises a 4G frequency band and a 5G frequency band, the 4G frequency band and the 5G frequency band are in one-to-one correspondence, one frequency band group comprises a pair of the 4G frequency band and the 5G frequency band which correspond to each other, and the EN-DC modes corresponding to different operators are different, so that the EN-DC frequency band set is also different.
Generally, an EN-DC mode corresponding to an operator is obtained by analyzing operator information of a SIM card in a terminal device, and then an EN-DC frequency band set associated with the operator is determined, and when a terminal in a non-independent networking mode needs to obtain a 5G network service when a frequency band combination of a current 4G serving cell and a 5G serving cell belongs to a frequency band group in the EN-DC frequency band set.
S403, judging whether the 4G frequency band of the 4G service cell is located in an EN-DC frequency band set.
The 4G service cell is an area where the terminal can currently obtain a 4G network service, and is a cell divided from the whole 4G communication service area, and a 4G base station is arranged in the cell and is responsible for establishing wireless connection with the terminal in the cell, so that the 4G terminal can perform 4G communication in any cell in the 4G communication service area.
Generally, whether a 4G serving cell of a terminal supports an EN-DC mode is determined by judging whether the 4G frequency band of the current 4G serving cell is located in an EN-DC frequency band set corresponding to an operator of a current SIM card in the terminal, and further, whether the terminal can obtain a 5G network service through the current 4G serving cell is determined.
And S404, searching one or more 4G adjacent cells around the 4G serving cell when the 4G serving cell is determined not to support the EN-DC mode.
The 4G neighboring cell refers to a 4G cell adjacent to the current 4G serving cell in cellular communication, and is a target cell that the terminal can select when switching the current serving cell. The EN-DC mode refers to a dual connectivity network mode of a 4G radio access network and a 5G NR, i.e. an EN-DC (option 3) architecture in a new wireless dual connectivity architecture of 4G LTE and 5G NR for non-independent networking: in the non-independent networking mode, the UE establishes connection with a 4G core network, simultaneously uses radio resources of at least two different base stations (the 4G base station is a main station and the 5G base station is a slave station), carries data shunting to the at least two different base stations on a PDCP layer, and the PDCP layer on the main station is responsible for PDU numbering, data shunting and aggregation between the main station and the slave station and the like.
Generally, when it is determined that the current 4G serving cell does not support the EN-DC mode, the terminal needs to search for a 4G cell capable of supporting the EN-DC mode by searching for one or more 4G neighbor cells around the current 4G serving cell.
S405, acquiring 4G frequency bands corresponding to one or more 4G adjacent cells.
The 4G frequency band is different according to different operators, each operator has a corresponding 4G frequency band, and the 4G cell supporting the EN-DC mode is determined by analyzing the 4G frequency band corresponding to the 4G adjacent cell.
S406, screening out a 4G cell set supporting an EN-DC mode according to the 4G frequency bands corresponding to one or more 4G adjacent cells respectively.
Generally, after one or more 4G neighboring cells around a 4G serving cell are searched, a 4G frequency band corresponding to the one or more 4G neighboring cells is analyzed, and 4G cells supporting an EN-DC mode corresponding to an operator of a SIM card in a terminal are screened out to construct a 4G cell set supporting the EN-DC mode.
S407, selects the 4G cell with the best signal quality from the 4G cell set as the target 4G cell.
The first preset signal quality condition is a signal quality condition which needs to be met by the 4G cell and is used for measuring the stability of data transmission of the 4G cell.
Generally, after the 4G cell set supporting the EN-DC mode is screened out, a 4G cell with the best signal quality needs to be further selected from the 4G cell set as a target 4G cell, so as to ensure that the 4G cell providing the 4G service for the terminal can maintain a stable data transmission state.
S408, handover is performed from the 4G serving cell to the target 4G cell.
Generally, after selecting a 4G cell with the best signal quality from the 4G cell set as a target 4G cell, the terminal switches the current 4G serving cell to the target 4G cell, and makes the target 4G cell be the current serving cell of the terminal.
S409, search for one or more 5G cells.
Generally, after a current 4G serving cell of a terminal is handed over to a target 4G cell, a search for 5G cells supporting an EN-DC mode is performed, and the current 5G serving cell of the terminal is selected from the searched 5G cells.
And S410, inquiring a 5G frequency band associated with the 4G frequency band of the target 4G cell in the EN-DC frequency band set.
The 5G frequency bands are different according to different operators (that is, the operators can support different EN-DC modes), each operator has a corresponding 5G frequency band, and the 5G frequency band corresponding to the 4G frequency band in the EN-DC frequency band set can be determined by analyzing the 4G frequency band of the target 4G cell.
Generally, after an EN-DC frequency band set of a terminal and a 4G frequency band of a target 4G cell are determined, a 5G frequency band corresponding to the 4G frequency band can be searched from the EN-DC frequency band set according to the 4G frequency band, and a target 5G cell meeting a preset condition is searched according to the 5G frequency band to serve as a 5G serving cell.
S411, a 5G cell set is screened out from one or more 5G cells based on the 5G frequency band.
Generally, after a 5G frequency band associated with a 4G frequency band of a target 4G cell is queried in an EN-DC frequency band set, a 5G cell set consistent with the 5G frequency band can be selected from one or more searched 5G cells according to the 5G frequency band, so that the selection of the 5G cell is more targeted.
S412, selects the 5G cell with the best signal quality from the 5G cell set as the target 5G cell.
Generally, the 5G frequency band of the 5G cell in the 5G cell set corresponds to the 4G frequency band of the target 4G cell, so that the 5G cells in the 5G cell set all support the EN-DC mode of the terminal.
S413, a 5G network connection is established through the target 5G cell and the target 4G cell.
The 5G network connection refers to a network connection through which the terminal can transmit data and establish communication through the 5G cell.
Generally, after a target 4G cell is selected from one or more 4G neighboring cells, a terminal may determine a 4G frequency band corresponding to the target 4G cell, after a 5G cell is searched, a 5G frequency band corresponding to the 4G frequency band is determined according to the 4G frequency band of the target 4G cell, and then a 5G cell satisfying a preset signal quality condition is selected according to the 5G frequency band as a target 5G cell, the target 4G cell is used as a current 4G serving cell of the terminal, the target 5G cell is used as a current 5G serving cell of the terminal, and a 5G network connection is established through the 4G serving cell and the 5G serving cell. The 5G serving cell is an area where the terminal can obtain a 5G network service, and is a cell divided from the whole 5G communication serving cell, and a 5G base station is arranged in the cell and is responsible for establishing wireless connection with the terminal in the cell, so that the 5G terminal can perform 5G communication in any cell in the 5G communication serving cell.
As can be seen from the above, the network connection method provided in this scheme determines operator information of a current SIM card of a terminal device, obtains an EN-DC frequency band set associated with the operator information, determines whether a 4G frequency band of a current 4G serving cell is located in the EN-DC frequency band set, searches one or more 4G neighboring cells around the current 4G serving cell when it is determined that the current 4G serving cell does not support an EN-DC mode, obtains a 4G frequency band corresponding to each of the one or more 4G neighboring cells, screens out a 4G cell set supporting the EN-DC mode according to the 4G frequency band corresponding to each of the one or more 4G neighboring cells, selects a 4G cell with the best signal quality from the 4G cell set as a target 4G cell, and switches the current 4G serving cell of the terminal to the target 4G cell, searching one or more 5G cells, inquiring a 5G frequency band associated with the 4G frequency band of a target 4G cell in an EN-DC frequency band set, screening a 5G cell set from the one or more 5G cells based on the 5G frequency band, selecting the 5G cell with the best signal quality from the 5G cell set as the target 5G cell, and establishing 5G network connection through the target 5G cell and the target 4G cell. By the method, the 4G service cell and the 5G service cell are searched in a targeted manner, the success rate of the terminal connected with the 5G network is improved, the stability of the 5G network is ensured, and the 5G communication experience of the user is enhanced.
The following are embodiments of the apparatus of the present application that may be used to perform embodiments of the method of the present application. For details which are not disclosed in the embodiments of the apparatus of the present application, reference is made to the embodiments of the method of the present application.
Referring to fig. 5, a schematic structural diagram of a connection device of a network according to an exemplary embodiment of the present application is shown, which is hereinafter referred to as device 5. The apparatus 5 may be implemented as all or part of a terminal by software, hardware or a combination of both. The device 5 is applied to a terminal, and the device 5 comprises:
a searching module 501, configured to search one or more 4G neighboring cells around a 4G serving cell when it is determined that the 4G serving cell does not support an EN-DC mode;
a selecting module 502 for selecting a target 4G cell among the one or more 4G neighbor cells; wherein the target 4G cell supports the EN-DC mode and satisfies a first preset signal quality condition;
a processing module 503, configured to handover from the 4G serving cell to the target 4G cell, and establish a 5G network connection through the target 4G cell.
Optionally, the search module 501 includes:
a determining unit, configured to determine whether the 4G frequency band of the 4G serving cell is located in an EN-DC frequency band set; wherein the EN-DC frequency band set comprises one or more frequency band groups, and the frequency band groups comprise the 4G frequency band and the 5G frequency band;
a first determining unit, configured to determine that the 4G serving cell does not support the EN-DC mode if it is determined that the 4G frequency band of the 4G serving cell is not located in an EN-DC frequency band set.
Optionally, the searching module 501 further includes:
a second determination unit configured to determine operator information of the terminal device;
a first obtaining unit, configured to obtain the EN-DC frequency band set associated with the operator information.
Optionally, the selecting module 502 further includes:
a second obtaining unit, configured to obtain 4G frequency bands corresponding to the one or more 4G neighboring cells respectively;
the first screening unit is used for screening out a 4G cell set supporting the EN-DC mode according to the respective corresponding 4G frequency bands of the one or more 4G adjacent cells;
a first selecting unit, configured to select a 4G cell with the best signal quality from the 4G cell set as the target 4G cell.
Optionally, the processing module 503 includes:
a first searching unit for searching one or more 5G cells;
a second selecting unit, configured to select a target 5G cell among the one or more 5G cells; wherein the target 5G cell supports the EN-DC mode and satisfies a second preset signal quality condition;
a connection unit, configured to establish the 5G network connection through the target 5G cell and the target 4G cell. .
Optionally, the processing module 503 further includes:
a first query unit, configured to query, in an EN-DC frequency band set, a 5G frequency band associated with the 4G frequency band of the target 4G cell;
a second searching unit, configured to search for the one or more 5G cells based on the 5G frequency band.
Optionally, the processing module 503 further includes:
a second query unit, configured to query, in an EN-DC frequency band set, a 5G frequency band associated with the 4G frequency band of the target 4G cell;
a second screening unit, configured to screen a 5G cell set from the one or more 5G cells based on the 5G frequency band;
a third selecting unit, configured to select, as the target 5G cell, a 5G cell with a best signal quality from the 5G cell set.
It should be noted that, when the network connection device provided in the foregoing embodiment executes the network connection method, only the division of the functional modules is illustrated, and in practical applications, the functions may be distributed and completed by different functional modules according to needs, that is, the internal structure of the device may be divided into different functional modules to complete all or part of the functions described above. In addition, the embodiments of the network connection device and the network connection method provided in the foregoing embodiments belong to the same concept, and details of implementation processes thereof are referred to in the method embodiments and are not described herein again.
The above-mentioned serial numbers of the embodiments of the present application are merely for description and do not represent the merits of the embodiments.
An embodiment of the present application further provides a computer storage medium, where the computer storage medium may store a plurality of instructions, where the instructions are suitable for being loaded by a processor and executing the above method steps, and a specific execution process may refer to a specific description of the embodiment shown in fig. 4, which is not described herein again.
The application also provides a terminal, which comprises a processor and a memory; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the above-mentioned method steps.
Referring to fig. 6, a schematic structural diagram of a terminal according to an embodiment of the present invention is shown, where the terminal may be used to implement the data transmission method in the foregoing embodiment. Specifically, the method comprises the following steps:
the memory 603 may be used to store software programs and modules, and the processor 600 executes various functional applications and data processing by operating the software programs and modules stored in the memory 603. The memory 603 may mainly include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the terminal device, and the like. Further, the memory 603 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 603 may also include a memory controller to provide the processor 600 and the input unit 605 access to the memory 603.
The input unit 605 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, input unit 605 may include a touch-sensitive surface 606 (e.g., a touch screen, a touchpad, or a touch frame). The touch-sensitive surface 606, also referred to as a touch display screen or a touch pad, may collect touch operations by a user on or near the touch-sensitive surface 606 (e.g., operations by a user on or near the touch-sensitive surface 606 using a finger, a stylus, or any other suitable object or attachment) and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface 606 may comprise both touch sensing devices and touch controllers. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 600, and can receive and execute commands sent by the processor 600. Additionally, the touch-sensitive surface 606 may be implemented using various types of resistive, capacitive, infrared, and surface acoustic waves.
The display unit 613 may be used to display information input by or provided to the user and various graphical user interfaces of the terminal device, which may be made up of graphics, text, icons, video, and any combination thereof. The Display unit 613 may include a Display panel 614, and optionally, the Display panel 614 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like. Further, the touch-sensitive surface 606 may overlay the display panel 614, and when a touch operation is detected on or near the touch-sensitive surface 606, the touch operation is transmitted to the processor 600 to determine the type of touch event, and then the processor 600 provides a corresponding visual output on the display panel 614 according to the type of touch event. Although in FIG. 6, the touch-sensitive surface 606 and the display panel 614 are two separate components to implement input and output functions, in some embodiments, the touch-sensitive surface 606 may be integrated with the display panel 614 to implement input and output functions.
The processor 600 is a control center of the terminal device, connects various parts of the entire terminal device by using various interfaces and lines, and performs various functions of the terminal device and processes data by running or executing software programs and/or modules stored in the memory 603 and calling data stored in the memory 603, thereby performing overall monitoring of the terminal device. Optionally, processor 600 may include one or more processing cores; processor 600 may integrate an application processor that handles operating system, user interface, application programs, etc., and a modem processor that handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 600.
Specifically, in this embodiment, the display unit of the terminal device is a touch screen display, the terminal device further includes a memory and one or more programs, where the one or more programs are stored in the memory and configured to be executed by the one or more processors, and the one or more programs include steps for implementing the positioning method.
In the several embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described device embodiments are merely illustrative, for example, the division of the unit is only a logical functional division, and there may be other division ways in actual implementation, such as: multiple units or components may be combined, or may be integrated into another system, or some features may be omitted, or not implemented. In addition, the coupling, direct coupling or communication connection between the components shown or discussed may be through some interfaces, and the indirect coupling or communication connection between the devices or units may be electrical, mechanical or other forms.
All functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may be separately used as one unit, or two or more units may be integrated into one unit; the integrated unit can be realized in a form of hardware, or in a form of hardware plus a software functional unit.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A method for connecting to a network, the method comprising:
searching for one or more 4G neighbor cells surrounding a 4G serving cell when it is determined that the 4G serving cell does not support the EN-DC mode;
selecting a target 4G cell among the one or more 4G neighbor cells; wherein the target 4G cell supports the EN-DC mode and satisfies a first preset signal quality condition;
switching from the 4G serving cell to the target 4G cell, and searching one or more 5G cells;
inquiring a 5G frequency band associated with a 4G frequency band of the target 4G cell in an EN-DC frequency band set, wherein the EN-DC frequency band set comprises one or more frequency band groups, the frequency band groups comprise the 4G frequency band and the 5G frequency band, the 4G frequency band and the 5G frequency band are in one-to-one correspondence, and one frequency band group comprises a pair of the 4G frequency band and the 5G frequency band which are in mutual correspondence;
screening a 5G cell set from the one or more 5G cells based on the 5G frequency band;
selecting a 5G cell with the best signal quality from the 5G cell set as a target 5G cell, wherein the target 5G cell supports the EN-DC mode and meets a second preset signal quality condition;
and establishing 5G network connection through the target 5G cell and the target 4G cell.
2. The method of claim 1, wherein the determining that the 4G serving cell does not support EN-DC mode comprises:
judging whether the 4G frequency band of the 4G service cell is located in an EN-DC frequency band set; wherein the EN-DC frequency band set comprises one or more frequency band groups, and the frequency band groups comprise the 4G frequency band and the 5G frequency band;
if not, determining that the 4G serving cell does not support the EN-DC mode.
3. The method of claim 2, wherein the determining whether the 4G band of the 4G serving cell is located before an EN-DC band set further comprises:
determining operator information of the terminal equipment;
and acquiring the EN-DC frequency band set associated with the operator information.
4. The method of claim 1, wherein selecting the target 4G cell among the one or more 4G neighbor cells comprises:
acquiring 4G frequency bands corresponding to the one or more 4G adjacent cells;
screening out a 4G cell set supporting the EN-DC mode according to the 4G frequency bands corresponding to the one or more 4G adjacent cells respectively;
and selecting the 4G cell with the best signal quality from the 4G cell set as the target 4G cell.
5. The method of claim 1, wherein the searching for one or more 5G cells comprises:
querying a 5G frequency band associated with the 4G frequency band of the target 4G cell in an EN-DC frequency band set;
searching for the one or more 5G cells based on the 5G band.
6. A connection device of a network, the device comprising:
the device comprises a searching module, a judging module and a judging module, wherein the searching module is used for searching one or more 4G adjacent cells around a 4G serving cell when the 4G serving cell is determined not to support an EN-DC mode;
a selection module to select a target 4G cell among the one or more 4G neighbor cells; wherein the target 4G cell supports the EN-DC mode and satisfies a first preset signal quality condition;
a second searching module, configured to switch from the 4G serving cell to the target 4G cell, and search for one or more 5G cells;
a frequency band query module, configured to query a 5G frequency band associated with a 4G frequency band of the target 4G cell in an EN-DC frequency band set, where the EN-DC frequency band set includes one or more frequency band groups, where the frequency band group includes the 4G frequency band and the 5G frequency band, the 4G frequency band and the 5G frequency band are in a one-to-one correspondence relationship, and one frequency band group includes a pair of a 4G frequency band and a 5G frequency band that correspond to each other;
a set screening module, configured to screen a 5G cell set from the one or more 5G cells based on the 5G frequency band;
a cell selection module, configured to select a 5G cell with the best signal quality from the 5G cell set as a target 5G cell, where the target 5G cell supports the EN-DC mode and meets a second preset signal quality condition;
and the network connection module is used for establishing 5G network connection through the target 5G cell and the target 4G cell.
7. A computer storage medium, characterized in that it stores a plurality of instructions adapted to be loaded by a processor and to perform the method steps according to any of claims 1 to 5.
8. A terminal, comprising: the system comprises a processor, a memory and a display screen; wherein the memory stores a computer program adapted to be loaded by the processor and to perform the method steps of any of claims 1 to 5.
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