CN112929865B - 5G terminal power saving method and system in emergency service mode - Google Patents
5G terminal power saving method and system in emergency service mode Download PDFInfo
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- CN112929865B CN112929865B CN202110077123.5A CN202110077123A CN112929865B CN 112929865 B CN112929865 B CN 112929865B CN 202110077123 A CN202110077123 A CN 202110077123A CN 112929865 B CN112929865 B CN 112929865B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/90—Services for handling of emergency or hazardous situations, e.g. earthquake and tsunami warning systems [ETWS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/02—Power saving arrangements
- H04W52/0209—Power saving arrangements in terminal devices
- H04W52/0251—Power saving arrangements in terminal devices using monitoring of local events, e.g. events related to user activity
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- 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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Abstract
The invention provides a 5G terminal power saving method and a system in an emergency service mode, which relate to the technical field of the emergency service mode, and the method comprises the following steps: step S1: entering an emergency service mode, wherein when no emergency service exists, the network selection control module does not initiate network selection, and the AS service module is in an inactive state; step S2: when an emergency service is initiated, a network selection control module initiates an emergency network selection, and an AS service module is switched to an activated state; step S3: and after the emergency service is finished, the network selection control module controls the AS service module to return to the non-activated state from the activated state. The invention can reduce the terminal overhead to the maximum extent, prolong the terminal cruising ability and solve the sustainability problem of the emergency service initiated by the emergency service mode user under the condition of ensuring the normal initiation of the emergency service.
Description
Technical Field
The invention relates to the technical field of emergency service modes, in particular to a 5G terminal power saving method and system in an emergency service mode.
Background
In mobile communication, an emergency service mode (emergency service mode) generally refers to a mode in which a terminal cannot initiate a normal service but can initiate an emergency call in time, for example, an emergency call is made when there is no card. In general, after a terminal is powered on, whether a card exists or not, the terminal actively searches for an available network. According to the 3GPP-TS23.122 standard, even if the 5G terminal has no USIM card, the network still needs to be able to provide the services that are accessible to the terminal in the emergency service mode. In the emergency service mode, the terminal can still stay in the 5G network in emergency and initiate emergency services when needed. In addition to the cardless case, the terminal may also enter the emergency service mode in the following process:
(1) registration process (registration)
In the REGISTRATION process, the terminal receives a REGISTRATION rejection (REGISTRATION REJECT) message of the network, and the message carries a cause value of REGISTRATION failure: when #3(Illegal UE), #6(Illegal ME), and #7(5GS services not allowed), the current card is considered invalid, and the emergency service mode is entered.
(2) Network unregistering process (network-initiated de-registration)
In the registration state, the terminal receives a DEREGISTRATION REQUEST (DEREGISTRATION REQUEST) initiated by the network, and the DEREGISTRATION message carries a reason value: when #3(Illegal UE), #6(Illegal ME), and #7(5GS services not allowed), the current card is considered invalid, and the emergency service mode is entered.
(3) Service request procedure (service request)
In the SERVICE request process, the terminal receives a SERVICE request REJECT (SERVICE REJECT) of the network, and the message carries a failure cause value: when #3(Illegal UE), #6(Illegal ME), and #7(5GS services not allowed), the current card is considered invalid, and the emergency service mode is entered.
(4) Authentication process (authentication)
In the AUTHENTICATION process, the terminal receives an AUTHENTICATION rejection (AUTHENTICATION REJECT) message of the network, and at the moment, the current USIM card is considered invalid, and the terminal enters an emergency service mode.
According to the 3GPP TS24.501 standard, when the terminal considers that the current USIM card is invalid, the 5GMM enters the 5 GMM-deregistered no-SUPI state, and the terminal performs a restricted park procedure, and can initiate emergency services when necessary.
According to the 3GPP TS24.501 standard, if no suitable cell (viable cell) is currently resident, the terminal needs to select a limited cell to reside, and start a limited residence timer, and initiate a network selection procedure again after the timer times out. A terminal in a restricted residence can only initiate emergency services.
According to the 3GPP-TS38.304 standard, after a terminal camps on an available network, the signal quality of the current serving cell is periodically measured in idle mode regardless of whether the current cell camps normally or is camping limitedly. If the signal quality of the current service cell is reduced to reach a threshold value, the measurement of the same-frequency cell or the measurement of the different-frequency cell is started. By measuring the signal quality of the neighbor cell of the serving cell, the terminal can reselect the cell with better signal quality, thereby enabling the terminal to always maintain better service quality.
After the terminal resides in an available network, in order to maintain a good service level, cell signal quality measurement is inevitably required to be performed to implement a cell reselection function. In addition, compared with the base stations of communication systems such as LTE, the NR base station has a smaller coverage area due to a higher operating frequency, and cell reselection due to terminal movement is more frequent. The cell signal quality measurement of the terminal is generally divided into the processes of frequency synchronization, signal measurement, signal evaluation and the like, and the frequent execution of the processes can aggravate the consumption of the electric quantity of the terminal. And the NR terminal introduces Massive MIMO (multiple input multiple output) technology, resides in the network for a long time, and the radio frequency module is always in a working state, so that the cruising ability of the terminal is further reduced.
In mobile communication, the power of the terminal is limited, and if the terminal is in an emergency scene, it is naturally desirable to extend the endurance time of the terminal as much as possible in order to initiate an emergency service when necessary. The fact is that in most scenarios, there is no need for the user to initiate an emergency service, and it is perceivable when the user initiates an emergency service. When the user has no emergency service requirement, extra overhead is brought by selecting the resident network, and the cruising ability of the terminal is reduced.
Disclosure of Invention
Aiming at the problem that the maintenance network overhead of a 3GPP standard 5G terminal in an emergency service mode in the prior art is too large to influence the endurance of the terminal, the invention aims to provide a 5G terminal power-saving method and a system in the emergency service mode, which can reduce the terminal overhead to the maximum extent, prolong the endurance of the terminal and solve the sustainability problem of the emergency service initiated by an emergency service mode user under the condition of ensuring that the emergency service can be initiated normally.
According to the 5G terminal power saving method and system in the emergency service mode provided by the invention, the scheme is as follows:
in a first aspect, a power saving method for a 5G terminal in an emergency service mode is provided, where the method includes:
entering an emergency service mode, wherein when no emergency service exists, the network selection control module does not initiate network selection, and the AS service module is in an inactive state;
when an emergency service is initiated, a network selection control module initiates an emergency network selection, and an AS service module is switched to an activated state;
and after the emergency service is finished, the network selection control module controls the AS service module to return to the non-activated state from the activated state.
Preferably, the entering the emergency service includes:
the user control terminal is started without a card;
when no emergency service exists at present, the network selection control module does not execute the network selection process and is in a power saving mode;
and the AS service module is in an inactive state, and the process is ended.
Preferably, the entering the emergency service further includes:
the NAS business module receives a message of a network side, and when the message carries failure reason values #3(Illegal UE), #6(Illegal ME), #7(5GS services not allowed), or receives an AUTHENTICATION rejection (AUTHENTICATION REJECT) message, the current card is considered invalid at the moment, and the emergency business mode is entered;
the NAS business module sends an 'emergency business mode entering indication' to a network selection control module;
the network selection control module sends an 'AS deactivation request' to an AS service module;
the AS service module enters an inactive state and replies 'AS deactivation confirmation' to the network selection control module;
and the network selection control module enters a power saving mode, and the process is finished.
Preferably, the entering the emergency service further includes:
no suitable cell (survivable cell) can reside currently in the network selection process;
the network selection control module sends an AS deactivation request to an AS service module;
the AS service module enters an inactive state and replies 'AS deactivation confirmation' to the network selection control module;
and the network selection control module enters a power saving mode, and starts a network loss timer, so that the process is ended.
Preferably, the emergency service initiation includes:
the user controls to initiate the emergency service;
the NAS business module sends an 'emergency business initiating request' to a network selection control module;
the network selection control module initiates an emergency network selection process and sends an 'emergency network selection request' to the AS service module;
the AS service module enters an activated state and executes a cell selection process, and after network selection is successful, an 'emergency network selection result' is sent to a network selection control module;
the network selection control module confirms that the network is successfully resident at present, and replies 'emergency service initiation confirmation' to the NAS service module;
the NAS business module initiates an emergency registration process, and the AS business module establishes connection;
the NAS business module controls to initiate an emergency business;
the emergency service is successfully initiated, and the process is finished.
Preferably, the emergency service completion includes:
the user controls the release of the emergency service;
the NAS business module initiates a de-registration process, and the AS business module is connected with a release process;
when the flow of the previous step is finished, the NAS service module sends an 'emergency service finishing request' to the network selection control module;
the network selection control module sends an 'AS deactivation request' to an AS service module;
the AS service module enters an inactive state and replies 'AS deactivation confirmation' to the network selection control module;
when no emergency service exists, the network selection control module enters a power saving mode, and the process is finished.
In a second aspect, a 5G terminal power saving system in an emergency service mode is provided, the system including:
module M1: entering an emergency service mode, wherein when no emergency service exists, the network selection control module does not initiate network selection, and the AS service module is in an inactive state;
module M2: when an emergency service is initiated, a network selection control module initiates an emergency network selection, and an AS service module is switched to an activated state;
module M3: and after the emergency service is finished, the network selection control module controls the AS service module to return to the non-activated state from the activated state.
Preferably, the module M1 entering the emergency service includes:
the user control terminal is started without a card;
when no emergency service exists at present, the network selection control module does not execute the network selection process and is in a power saving mode;
and the AS service module is in an inactive state, and the process is ended.
Preferably, the module M1 for entering emergency service further includes:
the NAS business module receives a message of a network side, and when the message carries failure reason values #3(Illegal UE), #6(Illegal ME), #7(5GS services not allowed), or receives an AUTHENTICATION rejection (AUTHENTICATION REJECT) message, the current card is considered invalid at the moment, and the emergency business mode is entered;
the NAS business module sends an 'emergency business mode entering indication' to a network selection control module;
the network selection control module sends an 'AS deactivation request' to an AS service module;
the AS service module enters an inactive state and replies 'AS deactivation confirmation' to the network selection control module;
and the network selection control module enters a power saving mode, and the process is ended.
Preferably, the module M1 for entering emergency service further includes:
no suitable cell (susitable cell) can reside currently in the network selection process;
the network selection control module sends an AS deactivation request to an AS service module;
the AS service module enters an inactive state and replies 'AS deactivation confirmation' to the network selection control module;
and the network selection control module enters a power saving mode, and starts a network loss timer, so that the process is ended.
Compared with the prior art, the invention has the following beneficial effects:
1. in the emergency service mode, when a user initiates an emergency service, the 5G terminal emergently selects a network and initiates the emergency service, and is in a silent state in other time, and the processes of frequency sweeping, network searching, synchronization, measurement, radio frequency transceiving and the like are all closed, so that unnecessary expenses of the terminal are reduced, the electric quantity consumption of the terminal is reduced, and the cruising ability of the terminal is effectively improved;
2. when unnecessary expenses of the terminal are reduced, the method can initiate the emergency service in time when the user needs the emergency service, and the availability and the initiation timeliness of the emergency service are guaranteed;
3. the 5G terminal in the emergency service mode does not reside in the network in the non-emergency service period, so that the interference of network notification is avoided, and the user experience can be effectively improved.
Drawings
Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:
FIG. 1 is a schematic diagram illustrating an emergency mode entering process;
fig. 2 is a schematic diagram of an emergency service initiation process;
fig. 3 is a schematic diagram of an emergency service release process.
Detailed Description
The present invention will be described in detail with reference to specific examples. The following examples will assist those skilled in the art in further understanding the invention, but are not intended to limit the invention in any way. It should be noted that variations and modifications can be made by persons skilled in the art without departing from the concept of the invention. All falling within the scope of the present invention.
The embodiment of the invention provides a 5G terminal power saving method in an emergency service mode, and according to the 3GPP TS24.501 standard, a Non-Access-Stratum (NAS) comprises a Session Management module (Session Management) and a Mobility Management module (Mobility Management). In the method, a session management module and a mobility management module of the NR are collectively referred to as an NAS service module. According to the 3GPP TS 38.300 standard, the Access-Stratum (AS) includes RRC Layer, Layer 2 (including SDAP, PDCP, RLC, MAC) and physical Layer, which are collectively referred to AS service module in the present method.
The method follows the following principles:
referring to fig. 1, an emergency service mode is entered first, and when there is no emergency service, the network selection control module does not initiate network selection, and the AS service module is in an inactive state.
Wherein entering the emergency service comprises:
selecting one of the following steps:
the user control terminal is started without a card, no emergency service exists at present, the network selection control module does not execute the network selection process and is in a power saving mode, at the moment, the AS service module is in an inactive state, and the process is finished.
Selecting two:
the NAS SERVICE module receives a message from the network side, such as REGISTRATION REJECT (REGISTRATION REJECT), de-REGISTRATION REQUEST (DEREGISTRATION REQUEST), and SERVICE REJECT (SERVICE REJECT) message, and when the message carries failure cause values #3(Illegal UE), #6(Illegal ME), #7(5GS SERVICE not allowed), or receives an AUTHENTICATION REJECT (AUTHENTICATION REJECT) message, the current card is considered invalid, and enters the emergency SERVICE mode. The NAS business module sends an 'emergency business mode entering indication' to the network selection control module, the network selection control module sends an 'AS deactivation request' to the AS business module, the AS business module enters an inactive state and replies an 'AS deactivation confirmation' to the network selection control module, and finally, the network selection control module enters a power saving mode and the process is finished.
Selecting three:
in the process of network selection, if no suitable cell (survivable cell) can reside currently, the network selection control module sends an AS deactivation request to the AS service module, the AS service module enters an inactive state after receiving the sending request and replies an AS deactivation confirmation to the network selection control module, and finally, the network selection control module enters a power saving mode, starts a network loss timer and ends the process.
Next, referring to fig. 2, entering an initiation flow of an emergency service, when the emergency service is initiated, initiating an emergency network selection by the network selection control module, and switching the AS service module to an activated state.
After the user controls and initiates the emergency service, the NAS service module sends an emergency service initiation request to the network selection control module, at the moment, the network selection control module initiates an emergency network selection process and sends the emergency network selection request to the AS service module, the AS service module enters an activated state and executes a cell selection process, after the network selection is successful, an emergency network selection result is sent to the network selection control module, the network selection control module confirms that the network is successfully resided at present, and replies an emergency service initiation confirmation to the NAS service module. The NAS business module initiates an emergency registration flow after receiving the reply, the AS business module establishes connection, then the NAS business module controls to initiate emergency business, and the flow is finished after the emergency business is successfully initiated.
Finally, referring to fig. 3, in the emergency service release process, after the emergency service is finished, the network selection control module controls the AS service module to return to the inactive state from the active state.
The method comprises the steps that a user controls the release of an emergency service, an NAS service module initiates a de-registration process, an AS service module is connected with the release process, after the process is finished, the NAS service module sends an emergency service ending request to a network selection control module, the network selection control module sends an AS deactivation request to the AS service module, the AS service module enters an inactive state and replies an AS deactivation confirmation to the network selection control module, and if no emergency service exists currently, the network selection control module enters a power saving mode and the process is finished.
If the current user does not initiate the emergency service, the network emergency residence does not need to be selected, and the access layer is in an inactive state. When a user initiates an emergency service, the network selection control module controls the access layer to be emergently resided in a discovered network at the fastest speed, and initiates the emergency service after the terminal is emergently registered in the network. In the method, if the current terminal does not have a suitable cell (failed cell) to reside, the limited residing process is not required to be executed, but the current terminal enters a power saving state without a network and starts a longer network loss timer. If the user initiates the emergency service during the period, the process is carried out according to the flow of the emergency service mode. When the network is selected in emergency, the emergency resident can be completed as long as any cell which can be resident is found. In general, the emergency network selection process can be completed within 200ms, so that the timeliness of the emergency service initiation is not affected.
The embodiment of the invention provides a 5G terminal power saving method in an emergency service mode, wherein in the emergency service mode, when a user initiates an emergency service, the 5G terminal emergently selects a network and initiates the emergency service, and is in a silent state at other time, and the processes of frequency sweeping, network searching, synchronization, measurement, radio frequency transceiving and the like are all closed, so that unnecessary expenses of the terminal are reduced, the electric quantity consumption of the terminal is reduced, and the cruising ability of the terminal is effectively improved; when unnecessary expenses of the terminal are reduced, the emergency service can be initiated in time when required by a user, and the availability and the initiation timeliness of the emergency service are guaranteed; the 5G terminal in the emergency service mode does not reside in the network in the non-emergency service period, so that the interference of network notification is avoided, and the user experience can be effectively improved.
Those skilled in the art will appreciate that, in addition to implementing the system and its various devices, modules, units provided by the present invention as pure computer readable program code, the system and its various devices, modules, units provided by the present invention can be fully implemented by logically programming method steps in the form of logic gates, switches, application specific integrated circuits, programmable logic controllers, embedded microcontrollers and the like. Therefore, the system and various devices, modules and units thereof provided by the invention can be regarded as a hardware component, and the devices, modules and units included in the system for realizing various functions can also be regarded as structures in the hardware component; means, modules, units for performing the various functions may also be regarded as structures within both software modules and hardware components for performing the method.
The foregoing description of specific embodiments of the present invention has been presented. It is to be understood that the present invention is not limited to the specific embodiments described above, and that various changes or modifications may be made by one skilled in the art within the scope of the appended claims without departing from the spirit of the invention. The embodiments and features of the embodiments of the present application may be combined with each other arbitrarily without conflict.
Claims (5)
1. A power saving method for a 5G terminal in an emergency service mode is characterized by comprising the following steps:
step S1: entering an emergency service mode, wherein when no emergency service exists, the network selection control module does not initiate network selection, and the AS service module is in an inactive state;
step S2: when an emergency service is initiated, a network selection control module initiates an emergency network selection, and an AS service module is switched to an activated state;
step S3: after the emergency service is finished, the network selection control module controls the AS service module to return to the non-activated state from the activated state;
the step S1 of entering the emergency service includes:
step S111: the user control terminal is started without a card;
step S112: when no emergency service exists at present, the network selection control module does not execute the network selection process and is in a power saving mode;
step S113: the AS business module is in an inactive state, and the process is finished;
the step S1 entering the emergency service further includes:
step S121: the NAS business module receives a message of a network side, and when the message carries failure reason values #3(Illegal UE), #6(Illegal ME), #7(5GS services not allowed), or receives an AUTHENTICATION rejection (AUTHENTICATION REJECT) message, the current card is considered invalid at the moment, and the emergency business mode is entered;
step S122: the NAS business module sends an 'emergency business mode entering indication' to a network selection control module;
step S123: the network selection control module sends an 'AS deactivation request' to an AS service module;
step S124: the AS service module enters an inactive state and replies 'AS deactivation confirmation' to the network selection control module;
step S125: the network selection control module enters a power saving mode, and the process is finished;
the step S1 entering the emergency service further includes:
step S131: no suitable cell (survivable cell) can reside currently in the network selection process;
step S132: the network selection control module sends an 'AS deactivation request' to an AS service module;
step S133: the AS service module enters an inactive state and replies 'AS deactivation confirmation' to the network selection control module;
step S134: and the network selection control module enters a power saving mode, and starts a network loss timer, so that the process is ended.
2. The method according to claim 1, wherein the initiating of the emergency service in step S2 comprises:
step S2-1: the user controls to initiate the emergency service;
step S2-2: the NAS business module sends an 'emergency business initiating request' to a network selection control module;
step S2-3: the network selection control module initiates an emergency network selection process and sends an 'emergency network selection request' to the AS service module;
step S2-4: the AS service module enters an activated state and executes a cell selection process, and after network selection is successful, an 'emergency network selection result' is sent to a network selection control module;
step S2-5: the network selection control module confirms that the network is successfully resident at present, and replies 'emergency service initiation confirmation' to the NAS service module;
step S2-6: the NAS business module initiates an emergency registration process, and the AS business module establishes connection;
step S2-7: the NAS business module controls to initiate an emergency business;
step S2-8: the emergency service is successfully initiated, and the process is finished.
3. The method according to claim 1, wherein the step S3 of completing the emergency service comprises:
step S3-1: the user controls the release of the emergency service;
step S3-2: the NAS business module initiates a de-registration process, and the AS business module is connected with a release process;
step S3-3: step S3-2, the NAS business module sends 'emergency business end request' to the network selection control module;
step S3-4: the network selection control module sends an AS deactivation request to an AS service module;
step S3-5: the AS service module enters an inactive state and replies 'AS deactivation confirmation' to the network selection control module;
step S3-6: when no emergency service exists, the network selection control module enters a power saving mode, and the process is finished.
4. A 5G terminal power saving system for emergency traffic mode, the system comprising:
module M1: entering an emergency service mode, wherein when no emergency service exists, the network selection control module does not initiate network selection, and the AS service module is in an inactive state;
module M2: when an emergency service is initiated, a network selection control module initiates an emergency network selection, and an AS service module is switched to an activated state;
module M3: after the emergency service is finished, the network selection control module controls the AS service module to return to the non-activated state from the activated state;
the module M1 entering the emergency service includes:
the user control terminal is started without a card;
when no emergency service exists at present, the network selection control module does not execute the network selection process and is in a power saving mode;
the AS business module is in an inactive state, and the process is finished;
the module M1 entering emergency services further comprises:
the NAS business module receives a message of a network side, and when the message carries failure reason values #3(Illegal UE), #6(Illegal ME), #7(5GS services not allowed), or receives an AUTHENTICATION rejection (AUTHENTICATION REJECT) message, the current card is considered invalid at the moment, and the emergency business mode is entered;
the NAS business module sends an 'emergency business mode entering indication' to a network selection control module;
the network selection control module sends an 'AS deactivation request' to an AS service module;
the AS service module enters an inactive state and replies 'AS deactivation confirmation' to the network selection control module;
and the network selection control module enters a power saving mode, and the process is ended.
5. The system according to claim 4, wherein said module M1 entering emergency services further comprises:
no suitable cell (survivable cell) can reside currently in the network selection process;
the network selection control module sends an 'AS deactivation request' to an AS service module;
the AS service module enters an inactive state and replies 'AS deactivation confirmation' to the network selection control module;
the network selection control module enters a power saving mode, and starts a network loss timer, and the process is finished.
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| EP3107335B1 (en) * | 2014-03-18 | 2019-05-29 | Huawei Device Co., Ltd. | Network searching method of terminal and terminal |
| US20160071399A1 (en) * | 2014-09-08 | 2016-03-10 | On Guard LLC | Personal security system |
| CN105933882A (en) * | 2016-04-08 | 2016-09-07 | 努比亚技术有限公司 | Emergency call device and method |
| CN106792612A (en) * | 2017-03-29 | 2017-05-31 | 努比亚技术有限公司 | One kind is without card emergent call processing method and terminal |
| CN108601017B (en) * | 2018-04-04 | 2021-10-01 | 广东小天才科技有限公司 | Network searching control method based on user terminal and user terminal |
| CN109286963A (en) * | 2018-10-22 | 2019-01-29 | 上海移芯通信科技有限公司 | A kind of method for searching network, device and terminal |
| CN110446243A (en) * | 2019-06-28 | 2019-11-12 | 努比亚技术有限公司 | Web search control method, terminal and computer readable storage medium |
| CN110677897B (en) * | 2019-08-27 | 2022-05-13 | 潍坊华瑞网络科技有限公司 | Network search control method, terminal and computer readable storage medium |
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