CN111314958B - LAU updating method and system of mobile terminal, storage medium and mobile terminal - Google Patents

LAU updating method and system of mobile terminal, storage medium and mobile terminal Download PDF

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Publication number
CN111314958B
CN111314958B CN202010101977.8A CN202010101977A CN111314958B CN 111314958 B CN111314958 B CN 111314958B CN 202010101977 A CN202010101977 A CN 202010101977A CN 111314958 B CN111314958 B CN 111314958B
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mobile terminal
lau
lai
mme
updating
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CN111314958A (en
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张余
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China United Network Communications Group Co Ltd
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China United Network Communications Group Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W28/00—Network traffic management; Network resource management
    • H04W28/02—Traffic management, e.g. flow control or congestion control
    • H04W28/0289—Congestion control
    • 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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Telephonic Communication Services (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The invention provides a mobile terminal LAU updating method and system, a storage medium and a mobile terminal. The method comprises the steps that an MSC monitors the congestion states of all cells of all controlled LAIs, and when congestion occurs in a cell next to one LAI, the MSC sets the cell state as congestion; when all cells under one LAI are congested and the congestion lasts for a set time, the MSC triggers the LAU of the mobile terminal to update; MSC sends LAU indication information to MME; the LAU indication information comprises a congested LAI identification; the MME sends LAU triggering information to the mobile terminal associated with the congested LAI identification; and the MME receives a joint location updating request sent by the mobile terminal and updates the location of the 3G/2G network of the mobile terminal. The method can avoid the condition that the access of the mobile terminal is refused due to the congestion of the access cell, thereby greatly shortening the call establishment time of the mobile terminal and improving the user experience.

Description

LAU updating method and system of mobile terminal, storage medium and mobile terminal
Technical Field
The invention belongs to the technical field of communication, and particularly relates to a LAU updating method and system of a mobile terminal, a storage medium and the mobile terminal.
Background
At present, a multimode single-card mobile terminal is a 4G multimode card, and the 4G multimode card selects a CSFB technique to implement a voice call, a 4G multimode card combined TA/LA update procedure is that the terminal finds that a current TAI is not in a TAI list of a terminal registration network, and needs to initiate a TAU procedure, the terminal sends a TAU request message to an MME, an update type indicates that the TAI is a combined location update request, the MME judges that it needs to initiate a TAU location update to a VLR, and the MSC/VLR initiates a location update to the HLR according to user information and location area information in the VLR.
The current combined location update is triggered based on the change of the LTE mobile terminal, and when a cell attached to the mobile terminal under an MSC is congested, LAU update cannot be triggered, so that the mobile terminal may fall back to a congested cell when falling back to the cell, or fall back to a non-congested cell to perform location update, and a call cannot be established or the call establishment time is prolonged.
Disclosure of Invention
The present invention provides a method and a system for updating LAU of a mobile terminal, a storage medium, and a mobile terminal, for solving the above technical problems in the prior art. According to the method, when the 4G multimode card has an incoming call, the mobile terminal can fall back to the 3G/2G network and access to the 3G/2G network cell, and the situation that the mobile terminal is refused to access due to congestion of the access cell cannot occur, so that the call establishment time of the mobile terminal is greatly shortened, and the user experience is improved.
The invention provides a LAU updating method of a mobile terminal, which comprises the following steps:
the MSC monitors the cell congestion states of all managed LAIs, and when the congestion occurs in a cell next to one LAI, the MSC sets the cell state as the congestion; when all cells under one LAI are congested and the congestion lasts for a set time, the MSC triggers the LAU update of the mobile terminal;
MSC sends LAU indication information to MME; the LAU indication information comprises a congested LAI identification;
the MME sends LAU triggering information to the mobile terminal associated with the congested LAI identification; the LAU trigger information comprises a congested LAI identifier and a location updated LAI identifier;
and the MME receives a joint location updating request sent by the mobile terminal and updates the location of the 3G/2G network of the mobile terminal.
Optionally, the joint location update request sent by the mobile terminal includes a TAU request and a TAU request type, and an LAU request and a LAU request type;
wherein, the TAU request type is set to be in a closed state; setting the LAU request type to be in a normal state;
the LAU request includes the LAI identifier after the location update.
Optionally, before the MSC triggers the LAU update of the mobile terminal, the method further includes:
the mobile terminal performs the joint attachment of the 4G multi-mode card.
Optionally, the performing, by the mobile terminal, the joint attachment of the 4G multi-mode card includes:
the mobile terminal 4G multimode card sends an attachment request message to the MME;
MME sends SGs location update request message to corresponding VLR; the SGs location updating request message comprises LAI of the mobile terminal, IMSI of the 4G multi-mode card, MME information and location updating type;
VLR stores the MME information and establishes SGs association with a 4G multimode card under MME;
the VLR initiates a 4G multi-mode card position updating flow to the HLR according to the LAI and the IMSI of the 4G multi-mode card, and returns confirmation information to the MME after the updating is completed;
and the MME sends an attachment completion message to the mobile terminal to complete the combined attachment of the 4G multi-mode card.
Optionally, the MME receiving the joint location update request sent by the mobile terminal, and after performing 3G/2G network location update on the mobile terminal, further includes:
the MME sends a location updating request to the VLR according to the cell identifier after the location updating of the 3G/2G network; the location updating request comprises the latest LAI identification and the IMSI of the mobile terminal 4G multi-mode card;
VLR updates the location and returns the location updating confirmation information to MME;
and the MME sends position updating completion information to the mobile terminal.
The present invention also provides a LAU update system of a mobile terminal, comprising:
the monitoring triggering module is used for monitoring the cell congestion states of all managed LAIs by the MSC, and when congestion occurs in a cell under one LAI, the MSC sets the cell state as congestion; when all cells under one LAI are congested and the congestion lasts for a set time, the MSC triggers the LAU update of the mobile terminal;
a communication module, which is used for the MSC to send LAU indication information to the MME; the LAU indication information comprises a congested LAI mark; the MME is also used for sending LAU triggering information to the mobile terminal associated with the congested LAI identification; the LAU trigger information comprises a congested LAI identifier and a location updated LAI identifier;
and the updating module is used for receiving the joint position updating request sent by the mobile terminal by the MME and updating the 3G/2G network position of the mobile terminal.
The invention also provides a storage medium, and the storage medium stores the LAU updating system of the mobile terminal.
The invention also provides a mobile terminal comprising the storage medium.
The invention has the beneficial effects that: according to the LAU updating method of the mobile terminal provided by the invention, when the congestion occurs in the next cell of an LAI, the MSC sets the state of the cell as the congestion; when all cells under one LAI are congested and the congestion lasts for a set time, the MSC triggers the LAU update of the mobile terminal, when the 4G multimode card has an incoming call, the mobile terminal can fall back to the 3G/2G network and access to the 3G/2G network cell, and the situation that the mobile terminal is refused to access due to the congestion of the access cell can not occur, so that the call establishment time of the mobile terminal is greatly shortened, and the user experience is improved.
The storage medium provided by the invention can execute the LAU updating method of the mobile terminal by storing the LAU updating system of the mobile terminal, thereby greatly shortening the call setup time of the mobile terminal and improving the user experience.
The mobile terminal provided by the invention can greatly shorten the call establishment time and improve the user experience by adopting the storage medium.
Drawings
Fig. 1 is a flowchart of a LAU updating method of a mobile terminal in embodiment 1 of the present invention;
fig. 2 is a flowchart of an LAU updating method of a mobile terminal in embodiment 2 of the present invention;
fig. 3 is a schematic block diagram of an LAU update system of a mobile terminal in embodiment 3 of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the method and system for updating LAU of a mobile terminal, the storage medium, and the mobile terminal of the present invention are described in further detail with reference to the accompanying drawings and the detailed description.
Example 1
The present embodiment provides a LAU update method for a mobile terminal, as shown in fig. 1, including:
step S1: the MSC monitors the cell congestion states of all managed LAIs, and when the congestion occurs in a cell next to one LAI, the MSC sets the cell state as the congestion; when all cells under one LAI are congested and the congestion lasts for a set time, the MSC triggers LAU update of the mobile terminal.
Step S2: the MSC sends LAU indication information to the MME. The LAU indication information includes the identity of the congested LAI.
Step S3: the MME sends LAU trigger information to the mobile terminal associated with the congested LAI identity. The LAU trigger information includes a congested LAI identifier and a location updated LAI identifier.
Step S4: and the MME receives a joint location updating request sent by the mobile terminal and updates the location of the 3G/2G network of the mobile terminal.
In this step, the combined location update request sent by the mobile terminal includes a TAU request and a TAU request type, and a LAU request type; wherein, the TAU request type is set to be in a closed state; setting the LAU request type to be in a normal state; the LAU request includes the LAI identifier after the location update. A TAU request refers to a tracking area update request, i.e. when a mobile station moves from one TA (tracking area) to another TA, the location registration must be re-performed on the new TA to inform the network to change its stored location information of the mobile station.
In this embodiment, the mobile terminal is a 4G multimode single card, and the 4G multimode card selects the CSFB technique to implement voice call. After the multi-mode single-card mobile terminal is started, starting a combined attachment process of a 4G multi-mode card; and after the 4G multi-mode card completes the joint attachment, executing the LAU updating method of the mobile terminal. The joint attachment of the mobile terminal refers to joint attachment of a 4G multi-mode card of the mobile terminal, namely the 4G multi-mode card is attached to a 3G network and utilizes the 3G network for communication. After the 4G multi-mode card is attached, the call link of the mobile terminal during the call can be realized.
The LAU update of the mobile terminal refers to the location update of the mobile terminal on the network side. The msc (mobile Switching center) is a place where call Switching services and call control are provided between the telephone and data systems, and is responsible for controlling subscriber calls originated or terminated by mobile terminals in GSM networks. MME, Mobility Management Entity, represents a network node. LAI, Location Area Identity; LAI is a concept of circuit domain in the 2G and 3G era that enables a mobile switching exchange (MSC/server) to search for all cells in the location area of a terminal when paging the terminal, even if the location of the terminal is known. The terminal does not need location update in a location area; when moving across location areas, a location area updating process needs to be initiated so that a network can know the location area of a terminal; meanwhile, in order to keep close contact with the network side, the terminal needs to periodically perform a location area updating process.
According to the LAU updating method of the mobile terminal, through the steps S1-S4, when the 4G multimode card has an incoming call, the mobile terminal can fall back to the 3G/2G network and access to the 3G/2G network cell, and the situation that the mobile terminal is refused to access due to congestion of the access cell cannot occur, so that the call establishment time of the mobile terminal is greatly shortened, and the user experience is improved.
Example 2
The present embodiment provides a LAU update method for a mobile terminal, as shown in fig. 2, including:
step S1': the mobile terminal performs the joint attachment of the 4G multi-mode card.
The method comprises the following steps:
step S101': and the mobile terminal 4G multimode card sends an attachment request message to the MME.
Step S102': and the MME sends an SGs location updating request message to the corresponding VLR. The SGs location update request message includes the LAI of the mobile terminal, the IMSI of the 4G multimode card, MME information, and a location update type.
The vlr (visitor Location register), i.e. the visitor Location register, is a dynamic database that stores information required to be retrieved for incoming and outgoing calls of visiting clients in the managed area, and information of the subscriber subscription service and additional services.
Step S103': the VLR stores MME information and creates SGs associations with 4G multimode cards under MME.
Step S104': and the VLR initiates a 4G multi-mode card position updating flow to the HLR according to the LAI and the IMSI of the 4G multi-mode card, and returns confirmation information to the MME after the updating is finished.
The hlr (home Location register), that is, the home Location register, belongs to a communication core network element and is responsible for storing service information of a mobile subscriber.
Step S105': and the MME sends an attachment completion message to the mobile terminal to complete the joint attachment of the 4G multi-mode card.
After the 4G multi-mode card of the mobile terminal is jointly attached, the following steps are executed:
step S1: the MSC monitors the cell congestion states of all managed LAIs, and when the congestion occurs in a cell next to one LAI, the MSC sets the cell state as the congestion; when all cells under one LAI are congested and the congestion lasts for a set time, the MSC triggers LAU update of the mobile terminal.
Wherein the set time is set empirically.
Step S2: the MSC sends LAU indication information to the MME. The LAU indication information includes the identity of the congested LAI.
Step S3: the MME sends LAU trigger information to the mobile terminal associated with the congested LAI identity. The LAU trigger information includes a congested LAI identifier and a location updated LAI identifier.
Step S4: and the MME receives a joint location updating request sent by the mobile terminal and updates the location of the 3G/2G network of the mobile terminal.
In this step, the combined location update request sent by the mobile terminal includes a TAU request and a TAU request type, and a LAU request type; wherein, the TAU request type is set to be in a closed state; setting the LAU request type to be in a normal state; the LAU request includes the LAI identifier after the location update.
In this embodiment, step S4 is followed by:
step S5: and the MME sends a location updating request to the VLR according to the cell identifier after the 3G/2G network location updating. The location updating request comprises the latest LAI identification and the IMSI of the mobile terminal 4G multi-mode card.
Step S6: and the VLR updates the location and returns location update confirmation information to the MME.
Step S7: and the MME sends position updating completion information to the mobile terminal.
Through the steps S1' -S7, the LAU at the network side can be updated for the mobile terminal, so that the mobile terminal falls back to the 3G/2G network, and when the mobile terminal is accessed to the 3G/2G network cell, the situation that the mobile terminal is refused to be accessed due to the congestion of the access cell does not occur, and the call establishment time of the mobile terminal is greatly shortened.
Advantageous effects of examples 1 to 2: in the LAU update method of the mobile terminal provided in embodiment 1-2, when a cell next to an LAI is congested, the MSC sets the cell state to be congested; when all cells under one LAI are congested and the congestion lasts for a set time, the MSC triggers LAU updating of the mobile terminal, when the 4G multimode card has an incoming call, the mobile terminal can fall back to the 3G/2G network and access to the 3G/2G network cell, and the condition that the mobile terminal is refused to access due to the congestion of the access cell can not occur, so that the call establishment time of the mobile terminal is greatly shortened, and the user experience is improved.
Example 3
Based on the LAU update method of the mobile terminal provided in embodiment 1 or 2, this embodiment provides an LAU update system of the mobile terminal, as shown in fig. 3, including: the monitoring triggering module 1 is used for monitoring the cell congestion states of all managed LAIs by the MSC, and when the congestion occurs in the next cell of one LAI, the MSC sets the cell state as the congestion; when all cells under one LAI are congested and the congestion lasts for a set time, the MSC triggers the LAU of the mobile terminal to update. A communication module 2, configured to send LAU indication information to the MME by the MSC; the LAU indication information comprises a congested LAI identification; the communication module 2 is further configured to send, by the MME, LAU trigger information to the mobile terminal associated with the congested LAI identifier; the LAU trigger information includes a congested LAI identifier and a location updated LAI identifier. And the updating module 3 is used for receiving the joint location updating request sent by the mobile terminal by the MME and updating the location of the 3G/2G network of the mobile terminal.
By setting the monitoring trigger module 1, the LAU of the network side of the mobile terminal can be updated, so that the mobile terminal falls back to the 3G/2G network, and when the mobile terminal is accessed to a 3G/2G network cell, the situation that the mobile terminal is refused to be accessed due to the congestion of the access cell can not occur, and the call establishment time of the mobile terminal is greatly shortened.
Beneficial effects of example 3: in the LAU update system of the mobile terminal provided in embodiment 3, by setting the monitoring trigger module, the communication module, and the update module, the MSC can set the cell state as congestion when congestion occurs in a next cell of an LAI; when all cells are congested under one LAI and the congestion lasts for a set time, the MSC triggers LAU update of the mobile terminal, when the 4G multimode card has an incoming call, the mobile terminal can fall back to the 3G/2G network and access to the 3G/2G network cell, and the condition that the mobile terminal is refused to access due to congestion of the access cell cannot occur, so that the call establishment time of the mobile terminal is greatly shortened, and the user experience is improved.
Example 4
The present embodiment provides a storage medium storing the LAU update system of the mobile terminal in embodiment 3.
By storing the LAU update system of the mobile terminal in embodiment 3, the LAU update method of the mobile terminal in embodiment 1 or 2 can be executed, thereby greatly shortening the call setup time of the mobile terminal and improving the user experience.
Example 5
The present embodiment provides a mobile terminal including the storage medium of embodiment 4.
By adopting the storage medium in the embodiment 4, the mobile terminal can greatly shorten the call establishment time and improve the user experience.
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 LAU updating method of a mobile terminal is characterized by comprising the following steps:
the MSC monitors the congestion states of all cells of all managed LAIs, and when congestion occurs in a cell next to one LAI, the MSC sets the cell state as congestion; when all cells under one LAI are congested and the congestion lasts for a set time, the MSC triggers the LAU update of the mobile terminal;
MSC sends LAU indication information to MME; the LAU indication information comprises a congested LAI identification;
the MME sends LAU triggering information to the mobile terminal associated with the congested LAI identification; the LAU trigger information comprises a congested LAI identifier and a location updated LAI identifier;
MME receives a joint location update request sent by the mobile terminal and updates the location of the 3G/2G network of the mobile terminal; the combined location updating request sent by the mobile terminal comprises a TAU request, a TAU request type, a LAU request and a LAU request type; the mobile terminal is provided with a 4G multi-mode card; before the MSC triggers LAU update of the mobile terminal, the method also comprises the following steps: and the mobile terminal performs combined attachment of the 4G multi-mode card.
2. The LAU updating method for a mobile terminal according to claim 1,
setting the TAU request type to be in a closed state; setting the LAU request type to be in a normal state;
the LAU request includes the LAI identifier after the location update.
3. The LAU updating method of the mobile terminal according to claim 1, wherein the performing the joint attachment of the 4G multi-mode card by the mobile terminal comprises:
the mobile terminal 4G multi-mode card sends an attachment request message to the MME;
MME sends SGs location update request message to corresponding VLR; the SGs location updating request message comprises LAI of the mobile terminal, IMSI of the 4G multi-mode card, MME information and location updating type;
VLR stores the MME information and establishes SGs association with a 4G multimode card under MME;
the VLR initiates a 4G multi-mode card position updating flow to the HLR according to the LAI and the IMSI of the 4G multi-mode card, and returns confirmation information to the MME after the updating is completed;
and the MME sends an attachment completion message to the mobile terminal to complete the joint attachment of the 4G multi-mode card.
4. The LAU updating method for a mobile terminal according to claim 3, wherein the MME receives the joint location update request from the mobile terminal, and further comprises, after performing the 3G/2G network location update on the mobile terminal:
the MME sends a location updating request to the VLR according to the cell identifier after the location updating of the 3G/2G network; the location updating request comprises the latest LAI identification and the IMSI of the mobile terminal 4G multi-mode card;
VLR carries out location updating and returns location updating confirmation information to MME;
and the MME sends position updating completion information to the mobile terminal.
5. A LAU update system of a mobile terminal, comprising:
the monitoring triggering module is used for monitoring the cell congestion states of all managed LAIs by the MSC, and when congestion occurs in a cell under one LAI, the MSC sets the cell state as congestion; when all cells under one LAI are congested and the congestion lasts for a set time, the MSC triggers the LAU of the mobile terminal to update;
a communication module, which is used for the MSC to send LAU indication information to the MME; the LAU indication information comprises a congested LAI identification; the MME is also used for sending LAU triggering information to the mobile terminal associated with the congested LAI identification; the LAU trigger information comprises a congested LAI identifier and a location updated LAI identifier;
the updating module is used for receiving a joint position updating request sent by the mobile terminal by the MME and updating the 3G/2G network position of the mobile terminal; the combined location updating request sent by the mobile terminal comprises a TAU request, a TAU request type, a LAU request and a LAU request type; the mobile terminal is provided with a 4G multi-mode card; before the monitoring triggering module is used for the MSC to trigger the LAU update of the mobile terminal, the method further comprises the following steps: the mobile terminal performs the joint attachment of the 4G multi-mode card.
6. A storage medium storing the LAU update system of the mobile terminal of claim 5.
7. A mobile terminal characterized by comprising the storage medium of claim 6.
CN202010101977.8A 2020-02-19 2020-02-19 LAU updating method and system of mobile terminal, storage medium and mobile terminal Active CN111314958B (en)

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