CN110267319B - LTE network returning method based on position, mobile terminal and system - Google Patents
LTE network returning method based on position, mobile terminal and system Download PDFInfo
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- CN110267319B CN110267319B CN201910647369.4A CN201910647369A CN110267319B CN 110267319 B CN110267319 B CN 110267319B CN 201910647369 A CN201910647369 A CN 201910647369A CN 110267319 B CN110267319 B CN 110267319B
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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
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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
- H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
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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
- H04W36/0083—Determination of parameters used for hand-off, e.g. generation or modification of neighbour cell lists
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- 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
- H04W36/32—Reselection being triggered by specific parameters by location or mobility data, e.g. speed data
Abstract
The invention provides a method for returning to an LTE network based on a position, which comprises the following steps: the MME stores position information of each base station under the jurisdiction and frequency point information of related cells, and sends the position information and the frequency point information to the mobile terminal for storage; after the mobile terminal finishes the call, if the information of the frequency point of the LTE network cell is not received, the distance between the mobile terminal and each base station is measured according to the current position information and the stored position information of each base station; and selecting the frequency points of the relevant cells of the base station closest to the base station for returning, and if the return is unsuccessful, sequentially selecting the frequency points of the relevant cells of other base stations from near to far to try to return until the return is successful. The invention also provides a corresponding terminal and a corresponding system. According to the method, the terminal and the system for returning to the LTE network based on the position, the signal strength of the base stations around the mobile terminal is measured through the position information of the mobile terminal and the base stations around the mobile terminal, the cell frequency point related to the optimal base station is selected to return, the time for returning to the 4G network is shortened, and the user experience is better.
Description
Technical Field
The invention relates to the technical field of communication, in particular to a method for returning to an LTE (Long term evolution) network based on a position, a mobile terminal for returning to the LTE network based on the position and a system for returning to the LTE network based on the position.
Background
An LTE (Long Term Evolution ) network designed based on packet domain full IP cannot bear traditional circuit domain Voice services, and a target scheme for bearing Voice is a Voice Over LTE (Voice Over LTE) scheme based on IMS (IP Multimedia Subsystem) to bear VoIP services (Voice Over Internet Protocol, Voice transmission based on IP, i.e., network telephony). However, before the VoLTE industry is mature and the LTE network is conditioned, the 2G/3G network still needs to be used to carry voice, that is, the 2G/3G network is directly utilized to provide voice service by adopting a CSFB (Circuit Switched Fallback) scheme. The basic idea of the CSFB scheme is that when the mobile terminal resides in an idle state or a data service connection state of the LTE network, and there is a voice service requirement (a calling party or a called party), the mobile terminal falls back to the 2G/3G network to establish a voice service through the LTE network assistance, and returns to the LTE network after the call is completed.
The method for returning the mobile terminal to the LTE network after the current call is finished is as follows: the method comprises the steps that an RNC (Radio Network Controller) is indicated through an MSC (Mobile Switching center), information of returning LTE Network cell frequency points is sent to a Mobile terminal, and the Mobile terminal returns to an LTE Network according to the LTE Network cell frequency points after receiving the information; however, if the RNC does not configure the LTE network cell frequency point, or the mobile terminal does not receive the information of the LTE network cell frequency point due to the radio access signal, the mobile terminal returns to the 4G network in an autonomous manner or in a 2G/3G/4G multi-layer network selection manner, which consumes a long time and makes the user feel bad.
Disclosure of Invention
The invention is completed in order to at least partially solve the technical problem that the time for the mobile terminal to return to the LTE network is long in the prior art.
The technical scheme adopted for solving the technical problem of the invention is as follows:
the invention provides a method for returning to an LTE network based on a position, which comprises the following steps:
an MME (Mobility Management Entity) stores position information and relevant cell frequency point information of each base station under the jurisdiction, issues all information to a mobile terminal through the base station, and stores the information by the mobile terminal;
after the mobile terminal finishes the call, if the information of the LTE network cell frequency point issued by the RNC is not received, the mobile terminal measures and calculates the distance between the mobile terminal and each base station according to the current position information and the stored position information of each base station under the control of the MME;
and the mobile terminal selects the frequency point of the cell related to the base station closest to the mobile terminal according to the measurement result to perform the test of returning to the LTE network, and if the return is unsuccessful, the mobile terminal sequentially selects the frequency points of the cells related to other base stations from the near to the far distance to perform the attempt of returning until the return is successful.
Further, after the mobile terminal finishes the call, the method further comprises the following steps:
the mobile terminal starts a timer; and if the mobile terminal does not receive the information of the LTE network cell frequency point issued by the RNC after the timer finishes timing, the mobile terminal starts to measure and calculate the distance between the mobile terminal and each base station according to the current position information and the stored position information of each base station under the control of the MME.
Further, after the mobile terminal finishes the call, the method further comprises the following steps:
the mobile terminal starts a timer; when the timer starts timing, the mobile terminal starts to measure and calculate the distance between the mobile terminal and each base station according to the current position information and the stored position information of each base station under the control of the MME; and after the timer finishes timing, the mobile terminal starts to return to the LTE network test again.
Further, the step of the mobile terminal selecting the frequency point of the cell related to the base station closest to the mobile terminal according to the measurement result to return comprises: and the mobile terminal performs the test of returning the LTE network to all the cell frequency points of the base station closest to the mobile terminal.
According to another aspect of the present invention, the present invention further provides a mobile terminal returning to an LTE network based on location, including: the device comprises a receiving module, a measuring module and a processing module;
the receiving module is used for receiving and storing the position information of each base station under the jurisdiction and the frequency point information of the related cell stored by the MME, and receiving the frequency point information of the LTE network cell sent by the RNC;
the measuring module is used for measuring and calculating the distance between the mobile terminal and each base station according to the current position information of the mobile terminal and the position information of each base station under the control of the MME, which is stored by the receiving module, under the condition that the receiving module does not receive the information of the LTE network cell frequency point issued by the RNC after the call of the mobile terminal is finished;
the processing module is used for selecting the relevant cell frequency point of the base station closest to the mobile terminal according to the measuring and calculating result of the measuring module to perform a return test, and if the return is unsuccessful, selecting the relevant cell frequency points of other base stations from a distance from the mobile terminal to a distance from the mobile terminal in sequence to perform a return attempt until the return is successful.
Further, the mobile terminal further comprises a timer;
the timer is used for starting timing after the mobile terminal finishes the conversation;
if the receiving module does not receive the information of the LTE network cell frequency point issued by the RNC after the timer finishes timing, the measuring module starts to measure and calculate the distance between the mobile terminal and each base station according to the current position information of the mobile terminal and the position information of each base station under the control of the MME, which is kept by the receiving module.
Further, the mobile terminal further comprises a timer;
the timer is used for starting timing after the mobile terminal finishes the conversation;
when the timer starts timing, the measuring module starts to measure and calculate the distance between the mobile terminal and each base station according to the current position information of the mobile terminal and the position information of each base station under the control of the MME, which is kept by the receiving module; and after the timer finishes timing, the processing module starts to return to the LTE network test again.
Further, the step of selecting the frequency point of the cell related to the base station closest to the mobile terminal by the processing module for returning comprises: and the processing module performs a test of returning the LTE network to all the cell frequency points of the base station closest to the base station.
In another aspect, the present invention further provides a system for returning to an LTE network based on location, including: an MME, a base station, and a mobile terminal as described above; and the MME is used for storing the position information and the frequency point information of the relevant cells of all the base stations under the jurisdiction and transmitting all the information to the mobile terminal through the base stations.
Has the advantages that:
according to the method, the terminal and the system for returning to the LTE network based on the position, the position information of the base station under the MME and the frequency point information of the cell related to the base station are stored in the mobile terminal, when the mobile terminal returns to the original network after the call is finished, the problems that the mobile terminal does not receive the information of the frequency point of the LTE network cell and then returns in a multi-layer network selection mode, the time consumption is long, and purposeful return cannot be carried out are solved, the signal strength of the base station around the mobile terminal is measured through the position information of the mobile terminal and the base stations around the mobile terminal, the frequency point of the cell related to the optimal base station is selected to return to the LTE network, the time for returning the mobile terminal to the 4G network is shortened, and user experience is better.
Drawings
Fig. 1 is a flowchart of a method for returning to an LTE network based on location according to a first embodiment of the present invention;
fig. 2 is a diagram of a mobile terminal architecture for returning to an LTE network based on location according to a second embodiment of the present invention;
fig. 3 is another architecture diagram of a mobile terminal returning to an LTE network based on location according to a second embodiment of the present invention;
fig. 4 is a schematic structural diagram of a system for returning to an LTE network based on location according to a third embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the present invention is further described in detail below with reference to the accompanying drawings and examples.
Example one
As shown in fig. 1, the present invention provides a method for returning to an LTE network based on location, including:
step S1: the MME stores the position information and the frequency point information of related cells of all base stations under the jurisdiction, and transmits all the information to the mobile terminal through the base stations, and the information is stored by the mobile terminal;
step S2: after the mobile terminal finishes the call, if the information of the LTE network cell frequency point issued by the RNC is not received, the mobile terminal measures and calculates the distance between the mobile terminal and each base station according to the current position information and the stored position information of each base station under the control of the MME;
step S3: and the mobile terminal selects the frequency point of the cell related to the base station closest to the mobile terminal according to the measurement result to perform the test of returning to the LTE network, and if the return is unsuccessful, the mobile terminal sequentially selects the frequency points of the cells related to other base stations from the near to the far distance to perform the attempt of returning until the return is successful.
Currently, a 4G multimode card of a terminal using CSFB generally resides in an idle state or a data service connection state of an LTE network, and when a voice service is required (a calling party or a called party), the 4G multimode card falls back to an 2/3G network to establish the voice service by the assistance of the LTE network, and returns to the LTE network after the call is completed
The specific process of call establishment is as follows: when the Mobile terminal has an incoming call, the calling MSC sends a call request to a called MSC (Mobile Switching center), and the called MSC sends a paging request to the Mobile terminal through an MME; after receiving a paging request sent by an MME, a mobile terminal sends an extended service request to the MME, the MME sends a mobile terminal fallback cell indication to an eNB (evolved Node B), the eNB sends configured fallback cell information to the mobile terminal after receiving the indication, then the mobile terminal performs fallback cell measurement and sends a measurement result to the eNB, the eNB determines a proper fallback cell and then sends the information to the mobile terminal, and the mobile terminal falls back to the proper cell; if the dropped cell is not consistent with the cell identifier in the combined attachment, the mobile terminal firstly updates the position, and after the position updating is finished, the mobile terminal sends paging response information to the called MSC to establish the call. After the call is finished, the mobile terminal returns to the LTE network, the MSC generally sends information of returning LTE network cell frequency points to the mobile terminal through the RNC, the mobile terminal returns to the LTE network according to the LTE network cell frequency points after receiving the information, but if the RNC is not configured with the LTE network cell frequency points or the mobile terminal does not receive the information of the LTE network cell frequency points due to wireless access signals, the mobile terminal returns to the LTE network through an autonomous mode or a 2G/3G/4G multi-layer network selection mode, at the moment, the mobile terminal can find a proper target cell through multiple selection, the consumed time is long, and when the mobile terminal does not receive the information of the corresponding LTE network cell frequency points, the mobile terminal can purposefully select the cell of a base station with a short distance by sending the base station position information of a mobile terminal accessory and the related cell frequency point information to the mobile terminal for storage, the target cell with strong signal strength returns to enable the mobile terminal to quickly return to the LTE network, for the LTE network, generally, one base station corresponds to 3 cells, when the base station is selected to return to the LTE network, if the selected cell returns unsuccessfully, all cells of the base station can be continuously selected to be tried or several cells of the base station can be selected to be tested, and certainly, as long as one selected cell returns successfully, the cell directly returns to the LTE network without trying.
Further, after the mobile terminal finishes the call, the method further comprises the following steps:
the mobile terminal starts a timer; and if the mobile terminal does not receive the information of the LTE network cell frequency point issued by the RNC after the timer finishes timing, the mobile terminal starts to measure and calculate the distance between the mobile terminal and each base station according to the current position information and the stored position information of each base station under the control of the MME.
When the mobile terminal returns to the LTE network in an autonomous mode or a 2G/3G/4G multi-layer network selection mode, a return attempt can be performed through the searched cell frequency point, but the return can be performed generally through multiple attempts, so that a user is influenced to perform data interaction service.
Further, after the mobile terminal finishes the call, the method further comprises the following steps:
the mobile terminal starts a timer; when the timer starts timing, the mobile terminal starts to measure and calculate the distance between the mobile terminal and each base station according to the current position information and the stored position information of each base station under the control of the MME; and after the timer finishes timing, the mobile terminal starts to return to the LTE network test again.
The distance between the mobile terminal and each base station is calculated when the timer is started, and the frequency point of the relevant cell of the best base station can be obtained more quickly to carry out the return test.
Further, the step of the mobile terminal selecting the frequency point of the cell related to the base station closest to the mobile terminal according to the measurement result to return comprises: and the mobile terminal performs the test of returning the LTE network to all the cell frequency points of the base station closest to the mobile terminal.
After the best base station is determined, if all the relevant cell frequency points are tested and are not returned successfully, the relevant cell frequency points of the base station close to the second are selected to be returned until the relevant cell frequency points are returned to the original network successfully.
Before the MME sends the position information of the base station under the jurisdiction and the frequency point information of the cell related to the base station to the mobile terminal, the method also comprises the following steps: and the mobile terminal starts the joint attachment flow of the 4G multi-mode card to complete joint attachment.
The CSFB service flow mainly includes a joint attachment, a location update, a calling (MO) CSFB flow, a called (MT) CSFB flow, and a detach. The attach procedure of the user enabling the CSFB function is implemented based on a joint GPRS (General Packet Radio Service)/IMSI (International Mobile Subscriber Identity) attach procedure.
The multimode single-standby handheld terminal carries the indication of supporting the CSFB capability in an attachment request message sent to the MME. After receiving a joint attach request of a user, the MME derives VLR (Visited Location Register) information of a CS (Circuit Switched) domain related to the MME while performing EPS (Evolved Packet System) attachment, and initiates a Location update request to the VLR, and after receiving the Location update request, the VLR marks the user as having performed EPS attachment and stores an IP address of the MME of the user, so that an sgservice (Serving General Packet Radio Service) association between the VLR of the user and the MME is created in the VLR. Then, the MSC Server/VLR will perform the CS domain Location update and transmit the TMSI (Temporary Mobile Subscriber identity) and LAI (Location Area identity) of the user to the MME, thereby establishing the SGs association in the MME. Finally, the MME includes the TMSI, LAI, and other information allocated to the User by the VLR in an attach request accept message and sends the attach request accept message to the UE (User Equipment), which indicates that the User has successfully combined attachment. After the joint attachment is successful, the user with the CSFB capability can process the circuit domain service in the LTE network.
After the mobile terminal is started, starting a combined attachment process of the 4G multi-mode card, wherein the specific process comprises the following steps:
the 4G multimode card of the mobile terminal sends an Attach Request message to the MME; wherein the parameter Attach Type indicates that the mobile terminal is a combined EPS/IMSI attachment flow, and the parameter indicates that the mobile terminal has a CS Fallback capability;
the MME sends an SGsAP-LOCATION-UPDATE-REQUEST message to the corresponding VLR, wherein the message comprises parameters such as new LAI, IMSI of the 4G multi-mode card, MME name, LOCATION UPDATE Type and the like;
the VLR stores MME information and establishes SGs association with a 4G multimode card under the MME, and initiates a 4G multimode card position updating process of the HLR according to the user information and the position area information; and returns confirmation information to the MME;
and the MME sends an Attach Accept message to the mobile terminal to complete the joint attachment.
Example two
As shown in fig. 2, according to another aspect of the present invention, the present invention further provides a mobile terminal returning to an LTE network based on location, including: a receiving module 11, a measuring module 12 and a processing module 13;
the receiving module 11 is configured to receive and store position information of each base station under the jurisdiction and frequency point information of a cell related to the base station, which are stored by the MME, and receive information of a frequency point of a cell of the LTE network, which is issued by the RNC;
the measuring module 12 is configured to measure and calculate a distance between the mobile terminal and each base station according to current location information of the mobile terminal and location information of each base station under the control of the MME stored in the receiving module 11, when the mobile terminal finishes a call and the receiving module 11 does not receive information of a frequency point of an LTE network cell sent by the RNC;
the processing module 13 is configured to select, according to the measurement result of the measurement module 12, a cell frequency point related to the base station closest to the mobile terminal for a return test, and if the return is unsuccessful, sequentially select cell frequency points related to other base stations from a near distance to a far distance from the mobile terminal for a return attempt until the return is successful.
Further, as shown in fig. 3, the mobile terminal further includes a timer 14;
the timer is used for starting timing after the mobile terminal finishes the conversation;
if the receiving module does not receive the information of the LTE network cell frequency point issued by the RNC after the timer finishes timing, the measuring module 12 starts to measure and calculate the distance between the mobile terminal and each base station according to the current position information of the mobile terminal and the position information of each base station under the control of the MME held by the receiving module.
Further, the mobile terminal further comprises a timer 14;
the timer 14 is used for starting timing after the mobile terminal finishes a call;
when the timer 14 starts timing, the measurement module 12 starts to measure and calculate the distance between the mobile terminal and each base station according to the current position information of the mobile terminal and the position information of each base station under the control of the MME, which is held by the reception module 11; after the timer 14 finishes timing, the processing module 13 starts to perform the return LTE network test.
Of course, as described in the first embodiment, the measurement module may perform the distance measurement between the mobile terminal and each base station at the beginning of the timing or after the end of the timing according to the selection of the program.
Further, the step of selecting the frequency point of the cell related to the base station closest to the mobile terminal by the processing module for returning comprises: the processing module 13 performs a return LTE network test on all cell frequency points of the base station closest to the base station.
And if the cell frequency points of other base stations are selected again to try if the returning is unsuccessful.
Further, the mobile terminal also comprises an attachment module;
the attachment module is used for completing the joint attachment of the 4G multimode card of the mobile terminal before the receiving module 11 receives the position information of the subordinate base station and the frequency point information of the cell related to the base station, which are stored by the MME.
EXAMPLE III
As shown in fig. 4, on the other hand, based on the method for returning to the LTE network based on the location in the first embodiment, the present invention further provides a system for returning to the LTE network based on the location, including: MME3, base station 2, and mobile terminal 1 as described above; and the MME3 is used for storing the position information of each base station 2 under the jurisdiction and the frequency point information of the cell related to the base station, and sending all the information to the mobile terminal 1 through the base station.
The mobile terminal 1 receives and stores the position information of the subordinate base station 2 and the frequency point information of the cell related to the base station, which are stored by the MME 3; after the call is finished, if the information of the frequency point of the LTE network cell sent by the RNC is not received, the distance between the terminal and each base station 2 is measured and calculated according to the current position information and the stored position information of each base station 2 under the control of the MME 3; after the distance measurement is completed, the relevant cell frequency point of the base station 2 closest to the mobile terminal 1 is selected for returning, and if the return is unsuccessful, the relevant cell frequency points of other base stations 2 from near to far are sequentially selected for returning to try until the return is successful.
It can be clearly understood by those skilled in the art that, for convenience and simplicity of description, the foregoing division of the functional modules is merely used as an example, and in practical applications, the foregoing function distribution may be performed by different functional modules according to needs, that is, the internal structure of the terminal is divided into different functional modules to perform all or part of the above-described functions. For the specific working process of the terminal and the system described above, reference may be made to the corresponding process in the foregoing method embodiment, and details are not repeated here
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (7)
1. A method for returning to an LTE network based on position is characterized by comprising the following steps:
the MME stores the position information and the frequency point information of related cells of all base stations under the jurisdiction, and transmits all the information to the mobile terminal through the base stations, and the information is stored by the mobile terminal;
after the mobile terminal finishes the call, starting a first timer, and if the information of the LTE network cell frequency point issued by the RNC is not received after the first timer finishes the timing, the mobile terminal calculates the distance between the mobile terminal and each base station according to the current position information and the stored position information of each base station under the control of the MME;
and the mobile terminal selects the frequency point of the cell related to the base station closest to the mobile terminal according to the measurement result to perform the test of returning to the LTE network, and if the return is unsuccessful, the mobile terminal sequentially selects the frequency points of the cells related to other base stations from the near to the far distance to perform the attempt of returning until the return is successful.
2. The method for returning to the LTE network based on the location according to claim 1, wherein before the mobile terminal according to the current location information and the stored location information of each base station governed by the MME, the method further comprises:
the mobile terminal starts a second timer; when the second timer starts to time, the mobile terminal starts to measure and calculate the distance between the mobile terminal and each base station according to the current position information and the stored position information of each base station under the control of the MME; and after the timing of the second timer is finished, the mobile terminal starts to return to the LTE network test according to the measured distance between the mobile terminal and each base station.
3. The method of claim 1, wherein the step of the mobile terminal selecting the frequency point of the cell related to the base station closest to the mobile terminal according to the measurement and calculation result comprises: and the mobile terminal performs the test of returning the LTE network to all the cell frequency points of the base station closest to the mobile terminal.
4. A mobile terminal for returning to an LTE network based on location, comprising: the device comprises a receiving module, a measuring module, a processing module and a first timer;
the receiving module is used for receiving and storing the position information of each base station under the jurisdiction and the frequency point information of the related cell, which are stored by the MME, and receiving the frequency point information of the LTE network cell, which is sent by the RNC;
the first timer is used for starting timing after the mobile terminal finishes the conversation;
the measuring module is used for measuring and calculating the distance between the mobile terminal and each base station according to the current position information of the mobile terminal and the position information of each base station under the control of the MME stored by the receiving module after the conversation of the mobile terminal is finished and if the receiving module does not receive the information of the LTE network cell frequency point sent by the RNC after the timing of the first timer is finished;
the processing module is used for selecting the relevant cell frequency point of the base station closest to the mobile terminal according to the measuring and calculating result of the measuring module to perform a return test, and if the return is unsuccessful, selecting the relevant cell frequency points of other base stations from a distance from the mobile terminal to a distance from the mobile terminal in sequence to perform a return attempt until the return is successful.
5. The mobile terminal for a location based return to LTE network of claim 4, wherein the mobile terminal further comprises a second timer;
the second timer is used for starting timing before the measuring module measures and calculates the distance between the mobile terminal and each base station according to the current position information of the mobile terminal and the position information of each base station under the control of the MME stored by the receiving module;
the measurement module is specifically configured to start to measure and calculate distances between the mobile terminal and each base station according to current location information of the mobile terminal and location information of each base station under the control of the MME, which is held by the reception module, while the second timer starts to time;
the processing module is specifically configured to start a return LTE network test according to the distance between the mobile terminal and each base station measured and calculated by the measurement module after the timing of the second timer is ended.
6. The mobile terminal of claim 4, wherein the processing module selects a frequency point of a cell associated with a base station closest to the mobile terminal for returning, the frequency point comprising: and the processing module performs a test of returning the LTE network to all the cell frequency points of the base station closest to the base station.
7. A system for location based return to an LTE network, comprising: an MME, a base station, and a mobile terminal according to any of claims 4-6; and the MME is used for storing the position information and the frequency point information of the relevant cells of all the base stations under the jurisdiction and transmitting all the information to the mobile terminal through the base stations.
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| CN113194521B (en) * | 2021-03-29 | 2023-07-21 | 深圳市广和通无线股份有限公司 | Network searching method and device for 5G communication module, computer equipment and storage medium |
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| CN107592644B (en) * | 2017-09-25 | 2020-11-06 | 中国联合网络通信集团有限公司 | Circuit domain fallback method, base station and terminal |
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| US9479979B2 (en) * | 2012-06-29 | 2016-10-25 | Nokia Solutions And Networks Oy | Success rate improvements for ANR measurements while reducing data loss at a UE |
| CN105052182A (en) * | 2013-12-31 | 2015-11-11 | 华为技术有限公司 | Method, device and system for selecting lte network |
| WO2016065535A1 (en) * | 2014-10-28 | 2016-05-06 | 华为技术有限公司 | Network selection method and user equipment |
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