CN117715123A - Control method and device for switching NR network and LTE network and electronic equipment - Google Patents

Control method and device for switching NR network and LTE network and electronic equipment Download PDF

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Publication number
CN117715123A
CN117715123A CN202211096849.4A CN202211096849A CN117715123A CN 117715123 A CN117715123 A CN 117715123A CN 202211096849 A CN202211096849 A CN 202211096849A CN 117715123 A CN117715123 A CN 117715123A
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China
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network
switching
preset
user equipment
lte network
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CN202211096849.4A
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彭尚新
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Chengdu TD Tech Ltd
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Chengdu TD Tech Ltd
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Priority to CN202211096849.4A priority Critical patent/CN117715123A/en
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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
    • 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
    • H04W36/0058—Transmission of hand-off measurement information, e.g. measurement reports
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/16—Performing reselection for specific purposes
    • H04W36/165—Performing reselection for specific purposes for reducing network power consumption
    • 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
    • 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)
  • Mobile Radio Communication Systems (AREA)

Abstract

The application provides a control method and device for switching between an NR network and an LTE network and electronic equipment, and relates to the technical field of communication. The method is applied to the user equipment and comprises the following steps: receiving redirection indication information sent by a base station; in the process of switching from the LTE network to the NR network, initiating a tracking area position updating TAU request to the base station, and judging whether a response result of the TAU request meets a preset switching-free condition; the preset switching-free condition is that the TAU refused times reach preset times and the refused reason value is a preset value, and the preset switching-free condition is used for reflecting the network abnormality; and when the response result of the TAU request meets the preset handover-free condition, setting the NR network state of the user equipment in a preset time period to be an invalid state, and stabilizing the NR network state in an LTE network. The above mode improves the stability of the service.

Description

Control method and device for switching NR network and LTE network and electronic equipment
Technical Field
The present disclosure relates to the field of communications technologies, and in particular, to a method and an apparatus for controlling handover between an NR network and an LTE network, and an electronic device.
Background
The 5G (5 th Generation Mobile Communication Technology, fifth generation mobile communication technology) communication module has the most remarkable characteristics of improving the data transmission rate of the terminal, reducing the transmission delay, and meeting the wide market application scenes such as 5G V2X (Vehicle to Everything, vehicle wireless communication technology), industrial Internet and the like. However, from the evolution history of the communication technology, continuous effort is required if it is desired to provide a high-rate, low-latency, superior experience to customers through 5G while guaranteeing certain service stability and reliability. The method is limited by the difference deployment of the current network environment and the difference of the environment configuration, and in some network environments, the inter-system switching between the fourth-generation mobile communication technology 4G and the fourth-generation mobile communication technology 5G also has some problems, for example, the signal coverage conditions of the terminals of different operators at the same position are different, the signal coverage conditions of the same terminal at different positions are different, the shielding density of different areas such as rural areas, cities and the like is different, the network environment is different, the difference of the environment configuration is represented by the different parameters of a core network and a base station, abnormal frequent switching is easy to generate, and the phenomenon of abnormal switching cannot be caused, and finally, the switching service stability between the 4G and the 5G is poor, and the user perception is poor.
In order to solve the problem of frequent switching of terminals caused by network anomalies, the prior art adopts the following modes: the first mode is that 5G user residence time and 4G user residence time are calculated through time window fitting, and then network adjustment and research are achieved; the second way is based on intelligent handover of the user equipment (i.e. the terminal) history location information; the third way provides different switching strategies at the base station side through the switching state of the user equipment. In either of the above modes, the different system switching is performed according to the instruction given by the base station side, and the specific flow is as follows: the module is started up and registered in an NR (New Radio) network, and performs data interaction with the NR network after a data path is activated. Then, the base station side requests the UE to redirect to the LTE (Long Term Evolution, long term evolution technology) network, triggers the TAU request procedure after switching to LTE, but the core network replies TAU REJECT carrying the cause value #10implicit_detach, and the UE needs to initiate the atach registration procedure in the LTE network according to the 3gpp 24301 protocol requirements described in the standard technical document. The user equipment then successfully registers with LTE and performs data traffic, but the base station instructs the user equipment to redirect to the NR network.
Therefore, in both the registration stage and the data service stage, the ue always performs frequent inter-system handover between the LTE network and the NR network, which results in frequent interruption of the data paths between the ue and the network and frequent packet loss.
Disclosure of Invention
The application provides a control method, a device and electronic equipment for switching between an NR network and an LTE network, which are used for solving the problem that user equipment frequently performs different system switching between the LTE network and the NR network in the prior art.
According to a first aspect of the present application, there is provided a control method for switching between an NR network and an LTE network, including:
receiving redirection indication information sent by a base station, and determining that the switching direction of the user equipment is switched from an LTE network to an NR network based on the redirection indication information;
in the process of switching from the LTE network to the NR network, initiating a tracking area position updating TAU request to the base station, and judging whether a response result of the TAU request meets a preset switching-free condition; the preset switching-free condition is that the TAU refused times reach preset times and the refused reason value is a preset value, and the preset switching-free condition is used for reflecting the network abnormality;
and when the response result of the TAU request meets the preset handover-free condition, setting the NR network state of the user equipment in a preset time period to be an invalid state, and stabilizing the NR network state in an LTE network.
According to a second aspect of the present application, there is provided a control apparatus for switching between an NR network and an LTE network, including:
the receiving and determining module is used for receiving redirection indication information sent by the base station and determining that the switching direction of the user equipment is switched from the LTE network to the NR network based on the redirection indication information;
the first judging module is used for initiating a tracking area position updating TAU request to the base station in the process of switching from the LTE network to the NR network and judging whether a response result of the TAU request meets a preset switching-free condition or not; the preset switching-free condition is that the TAU refused times reach preset times and the refused reason value is a preset value, and the preset switching-free condition is used for reflecting the network abnormality;
and the first setting module is used for setting the NR network state of the user equipment in a preset time period to be an invalid state and stabilizing the NR network state in an LTE network when the response result of the TAU request meets the preset handover-free condition.
According to a third aspect of the present application, there is provided an electronic device comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executes the computer-executable instructions stored by the memory, so that the at least one processor performs the control method for the handover of the NR network from the LTE network as described in the first aspect above.
According to a fourth aspect of the present application, there is provided a computer-readable storage medium having stored therein computer-executable instructions which, when executed by a processor, are adapted to implement a control method for NR network to LTE network handover as described in the first aspect above.
According to the control method, the device and the electronic equipment for switching the NR network and the LTE network, the switching between the LTE network and the NR network is not directly carried out according to the redirection indication information sent by the base station, whether the switching is needed or not is determined on the user equipment side, specifically, when the preset switching-free condition that the TAU refused times reach the preset times and the refused reason value is the preset value is met, the network abnormality is described, the NR network state of the user equipment in the preset time period is set to be an invalid state under the condition of network abnormality, the NR network state of the user equipment is stabilized in the LTE network, the NR capability of the user equipment can be lost, frequent invalid switching of the user equipment under the condition of network abnormality is prevented, and the frequent interruption and frequent packet loss of a data path of the user equipment and the network are effectively prevented.
It should be understood that the description of this section is not intended to identify key or critical features of the embodiments of the application or to delineate the scope of the application. Other features of the present application will become apparent from the description that follows.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the application and together with the description, serve to explain the principles of the application.
Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application;
fig. 2 is a schematic flow chart of a user equipment, a base station and an AMF of an NR network according to an embodiment of the present application;
fig. 3 is a flow chart of a control method for switching between an NR network and an LTE network according to an embodiment of the present application;
fig. 4 is a flow chart of another control method for switching between an NR network and an LTE network according to an embodiment of the present application;
fig. 5 is a schematic structural diagram of a control device for switching between an NR network and an LTE network according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Specific embodiments thereof have been shown by way of example in the drawings and will herein be described in more detail. These drawings and the written description are not intended to limit the scope of the inventive concepts in any way, but to illustrate the concepts of the present application to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application.
For easy understanding, first, an application scenario of the embodiment of the present application will be described. Fig. 1 is a schematic diagram of an application scenario according to an embodiment of the present application. As shown in fig. 1, the application scenario of the present embodiment involves communication between a base station and user equipment. In practical application, firstly, the user equipment registers successfully and initiates a service, then the base station side configures measurement information such as measurement event, measurement threshold, neighbor information, terminal measurement reporting mode, timer duration and the like and sends the measurement information to the user equipment, so that the user equipment reports a measurement result corresponding to the measurement information to the base station, and then the base station instructs the user equipment to execute a switching action according to the measurement result. Because the network deployment in the practical application is complex, the situation that the network parameter setting is unreasonable exists, and finally, the user equipment is frequently switched.
In addition, in order to ensure that the ue can implement different system handover, the core networks of the 4G and 5G are required to accurately synchronize the registration parameters of the ue. If there is a condition that the synchronization of the terminal parameters (i.e., the above registration parameters including, but not limited to, location information, SIM card information, and user equipment capability) between the network element MME of the LTE network and the network element AMF of the NR network is abnormal, the network will REJECT the location update procedure of the user equipment, and the core network replies TAU REJECT, so that the inter-system handover of the user equipment cannot be realized.
In order to solve at least one of the above technical problems, an embodiment of the present application provides a method and an apparatus for controlling handover between an NR network and an LTE network, and an electronic device, which are applied to the field of communications, and are used to solve the technical problem that the user equipment is frequently handed over between the NR network and the LTE network.
As shown in fig. 2, in the implementation process of the technical solution, signaling interaction is performed between a user equipment UE, a base station gmodeb, and a network element AMF of an NR network, where a communication module of the user equipment includes: NAS Layer (Non-access stratum), L3 Layer, L2 Layer (Layer 2, data link Layer), and L1 Layer; wherein, L3 layer includes: RRC (Radio Resource Control ), L2 layer including PDCP (Packet Data Convergence Protocol ), RLC (Radio Link Control, radio link layer control protocol), MAC (Media Access Control, medium access control layer), L1 layer including PHY (Physical, port Physical layer), the functions of the respective modules are as follows:
the NAS is a non-access layer and is responsible for PLMN (Public Land Mobile Network, public land communication network) selection and signaling interaction flow of user equipment and a core network, and is mainly responsible for signaling flow of mobile management and session management functions. The improvement point of the embodiment of the application is mainly the execution flow in the NAS layer. The RRC is a radio resource module, is used for reporting events during network switching, provides services such as link management, message transfer and the like for the NAS layer, provides a parameter configuration function for a bottom protocol entity of an access network, and is responsible for functions such as module mobility management related measurement, control and the like. PDCP is a radio transport protocol stack responsible for compressing and decompressing IP headers, transmitting user data, and maintaining sequence numbers of radio bearers set for lossless radio network service subsystems. RLC is a radio link control layer, and is configured to perform data retransmission processing, and correct HARQ (Hybrid Automatic Repeat request ) of the MAC layer through ARQ (Automatic Repeat request, automatic repeat request), so as to reduce feedback error rate. The MAC is a data link layer that can count the data frame information transmitted to determine the current data path rate and bit error rate. The PHY is a physical layer, and is used to provide time-frequency resources for data and signaling transmission, channel coding for data transmission, MIMO for body (Multiple In Multiple Out, multiple-input multiple-output), and transmit diversity. The physical layer in the module may monitor cell information using radio frequencies.
The overall inventive concept of the embodiment of the present application is as follows: the NAS layer of the user equipment judges whether the conditions that the TAU is refused for 2 times continuously, the refused reason value is #10, and the NR network and the LTE network are the same PLMN are met, and if the conditions are met, the NR capability is disabled, so that the purpose that the user equipment is stabilized in the LTE network is achieved.
The embodiment of the application considers the NR capability of the Disable ue because the ue has a TAU rejected scene in the LTE network, and the ue easily recognizes the scene, and the RSRP (Reference Signal Receiving Power, reference signal received power) and RSRQ (Reference Signal Receiving Quality, reference signal received quality) of the ue are respectively higher than the RSRP and RSRQ of the NR network in the LTE network. However, many practical service applications require more NR network environments, and if the NR capability is disabled for a long time, the user equipment will not have NR capability. Therefore, the NR network environment has the possibility of recovering other time periods, that is, if the NR network is recovered, the user equipment may switch to the NR network according to the procedure, where the technical solution adopted is that the NAS layer starts a timer for timing the duration of the disable NR capability, where the duration may be 12 minutes. After the timer is overtime, the NR capability of the user equipment DE is restored, and the problem that the user equipment cannot be switched to the NR network in time after the NR network is restored is avoided.
The following describes the technical solutions of the present application and how the technical solutions of the present application solve the above technical problems in detail with specific embodiments. The following embodiments may be combined with each other, and the same or similar concepts or processes may not be described in detail in some embodiments. Embodiments of the present application will be described below with reference to the accompanying drawings.
Fig. 3 is a flow chart of a control method for switching between an NR network and an LTE network according to an embodiment of the present application. As shown in fig. 3, the method of the present embodiment includes:
s301: and receiving redirection indication information sent by the base station, and determining that the switching direction of the user equipment is switched from the LTE network to the NR network based on the redirection indication information.
In the prior art, the base station indicates the user equipment to switch, the switching action is triggered by the base station, but in the embodiment of the present application, the redirection indication information is only a necessary condition for the user equipment to execute the switching, and it cannot be determined whether the user equipment needs to perform the switching action only according to the redirection indication information. That is, the purpose of the embodiment of the present application is to perform the inter-system handover without according to the redirection indication information, and the flow of performing the handover mainly relates to the following steps S305 to S307, which are not described herein.
S302: in the process of switching from the LTE network to the NR network, initiating a tracking area position updating TAU request to the base station, and judging whether a response result of the TAU request meets a preset switching-free condition; the preset switching-free condition is that the TAU refused times reach preset times and the refused reason value is a preset value, and the preset switching-free condition is used for reflecting the network abnormality.
In the embodiment of the present application, the number of TAU rejected times may be 2 times, or may be other numbers of times, and may be flexibly adjusted according to actual needs. The present embodiment is not limited to the specific value of the TAU reject cause value, and may be #10 or another cause value.
It should be noted that, in the prior art, network anomaly easily causes frequent handover between different systems, and it can be determined that there is no anomaly at the ue side, and that there is an anomaly in network deployment at the base station side, but in the embodiment of the present application, frequent handover between different systems is not caused, for the following reasons: in order to avoid frequent handover under the condition of network abnormality, the embodiment of the application provides a preset handover-free condition, and according to the condition, whether the user equipment has the capability of successfully handover can be identified, so as to determine whether to perform handover. The TAU is rejected as a network action and the user equipment may require re-ATTACH (attachment, meaning that the mobile phone is logged onto the ground network) according to the protocol.
S303: and when the response result of the TAU request meets the preset handover-free condition, setting the NR network state of the user equipment in a preset time period to be an invalid state, and stabilizing the NR network state in an LTE network.
In the embodiment of the present application, setting the NR network state of the user equipment in the preset period of time to be an invalid state means that the NR capability of the user equipment is disabled, and the manner of setting is not specifically limited in the embodiment of the present application. The NAS layer of the user equipment may identify whether the TAU is rejected by the same cause value in all consecutive 2 handover procedures, and then disable the NR capability of the user equipment. After the NR capability of the disabled user equipment, the user equipment does not consider the handover any more even if the user equipment receives the NR redirection frequency point of the base station, and the bottom layer (i.e. L1 layer) does not report the NR capability to the RRC module any more. In order to prevent ping-pong behavior of the user equipment, the embodiment of the application can limit the user equipment to be stably registered in an LTE network or an NR network system. The specific policy is as follows, and the ue does not directly start the handover procedure after receiving the redirection indication information of the network. The policy adopted by the application is to provide a condition that the user equipment does not execute the switching (namely a preset condition without switching), and the user equipment can be stabilized under the current network on the basis of meeting the condition without performing the switching action.
In a possible implementation manner, the method for controlling the handover between the NR network and the LTE network further includes: s304: when the response result of the TAU request is determined to meet the preset switching-free condition, starting a timer, and counting down through the timer; and the time period from the countdown starting time to the ending time is the preset time period.
If the NR capability of the user equipment is disabled all the time, the user equipment cannot execute the switching action even if the preset switching-free condition is met at other moments, but the user equipment at the moment is normal in behavior, so that the NR capability of the disabled user equipment is limited in time for the reasonable NR capability of the disabled user equipment. In the embodiment of the application, the duration of the timer can be flexibly configured according to the actual service scene. In order to avoid affecting the normal switching flow, the embodiment of the present application provides a strategy of how to switch in the following steps S305 to S307.
In a possible implementation manner, the control method for switching between the NR network and the LTE network further includes S305 to S307, where:
s305: and after the timer is counted down, setting the NR network state of the user equipment to be an effective state.
It will be appreciated that setting the NR network state of the user equipment to an active state means that there is no limitation of the NR capabilities of the disabled user equipment.
S306: judging whether a first measured value of the user equipment for a first measured event reaches a first threshold for switching to an NR network or not under the following scene; the scenario is a first scenario in which the NR network state of the ue is an active state, or a second scenario in which a response result of the TAU request is determined not to satisfy the preset handover-free condition. In the embodiment of the present application, the first measurement event refers to an event of switching to the NR network.
S307: and switching to an NR network in the case that the first measured value reaches the first threshold.
It should be understood that the handover of the ue between the LTE network and the NR network depends on the change conditions of the LTE and NR cell signals in the current network environment, and specifically depends on whether the measurement accuracy and reporting of the cell signals by the ue are timely, and whether the handover configuration parameters of the base station are reasonable, so a threshold for cutting the NR network (i.e. the first threshold for switching to the NR network described above) may be set, which is used to define conditions capable of switching to the NR network.
In a possible implementation manner, the control method for switching between the NR network and the LTE network further includes S308 to S310 before receiving the redirection indication information sent by the base station, where:
s308: receiving a starting instruction of a user, and controlling the communication module to be electrified and started based on the starting instruction; in practical application, the purpose of powering on and starting the communication module is to prepare for realizing connection with a network.
S309: starting a network searching registration process to access an NR network; the network searching registration process is not an important point in the embodiment of the present application, and the specific process is mature, so that a detailed description is omitted here.
S310: and executing data service under the NR network, judging whether a second measured value of the user equipment for a second measured event reaches a second threshold of switching to the LTE network, and redirecting to the LTE network under the condition that the second measured value reaches the second threshold. In the embodiment of the present application, the second measurement event refers to an event of switching to the LTE network. The redirection of one handover to the LTE network can be achieved through S308 to S310.
After switching to the NR network, the network searching registration under the NR network is not directly stabilized under the NR network, so in one possible implementation manner, the method for controlling switching between the NR network and the LTE network further includes S311: after switching to the NR network, the network searching registration flow is restarted to access the NR network.
In addition to the case that the first measurement value reaches the first threshold, the embodiment of the present application further includes a case that the first measurement value does not reach the first threshold, so in one possible implementation manner, the method for controlling handover between the NR network and the LTE network further includes S312: and executing data service in the LTE network under the condition that the first measured value does not reach the first threshold.
In a possible implementation manner, after the network searching registration procedure is started to access the NR network, the control method for switching between the NR network and the LTE network further includes S313: and dialing the upper computer based on a preset AT instruction.
In the technical scheme, under the condition that the network is abnormal, the user equipment can stably reside in the LTE network, so that packet loss caused by frequent abnormal switching is greatly reduced, the stability of customer service is facilitated, and customer experience is improved; meanwhile, after the NR network is restored, the user equipment can normally use the NR network.
Based on the above embodiments, the technical solutions of the present application will be described in more detail below in conjunction with the following specific embodiments.
Fig. 4 is a flow chart of another control method for switching between an NR network and an LTE network according to an embodiment of the present application. As shown in fig. 4, the method of the present embodiment includes:
s401: starting the module;
s402: registering the network searching to an NR network; after successful network searching registration, the embodiment of the application can realize the dialing of the upper computer through the AT instruction.
S403: executing data service; while executing data service under NR network, the change condition of cell environment can be monitored circularly according to RRC module. It should be understood that the specific implementation of S403 is similar to S307 in the above embodiment, and will not be described here.
S404: and judging whether the measured value meets the LTE threshold cutting requirement, if so, executing S405, and if not, executing S403.
S405: redirecting to the LTE network; after the redirection is completed, the data service is redialed under the LTE network. The embodiment of the application can implement the above strategy in the process of switching the NR network to the LTE network, namely judging whether the user equipment UE is refused for more than 2 times in the process of switching the NR to the LTE network, and the refused reason value is #10; if the above condition is satisfied, the NR capability of the user equipment is disabled, and a timer of 12 minutes is started; otherwise, the user equipment continues to perform data traffic under NR.
S406: judging whether TAU is refused, wherein the number of refused times is greater than or equal to 2, if so, executing S407, and if not, executing S409;
s407: the discrete NR is started for 12 min; according to the embodiment of the application, the user equipment is considered to be stabilized in the LTE network and is not frequently switched, and the possibility of network condition recovery is considered, so that a timer (namely the timer) on the user equipment can be started while the Disable NR is set, and the NR capability of the user equipment is recovered after the timer is overtime.
S408: judging whether the timer overtakes; if yes, executing S410, if not, executing 409;
s409: executing data service under LTE network;
s410: judging whether the measured value meets the NR threshold cutting requirement or not, and if no disfigurable NR limit exists, executing S411; if not, then S412 is performed;
s411: switching to the NR network;
s412: stabilized in the LTE network. S410-S412 can be used for judging whether the measured value reaches a threshold or not, judging whether a limiting condition of disable NR exists at the moment when the threshold condition of tangential NR is met, and judging that the limiting condition of disable NR does not exist, and tangential NR network exists; otherwise, the data service is carried out under the LTE network stably;
it should be understood that the specific implementation of S401 to S412 is similar to that of S301 to S313 in the above embodiment, and will not be repeated here. By executing the operations S401 to S412, the problem of frequent switching of different systems between the LTE network and the NR network is optimized, so that the communication module is stably registered in the LTE network under the abnormal condition of the network, and the problem of packet loss caused by frequent switching is avoided; meanwhile, after the network environment is recovered to be normal, the 5G network can be normally used; the stability of the service is ensured, and the user experience is improved; finally, it should be noted that the optimization strategy of the embodiment of the present application is also applicable to end products such as CPE (Customer Premise Equipment ), gateway, and the like.
According to the embodiment of the application, under the condition that the network is abnormal, the user equipment stably resides in the LTE network, so that packet loss caused by frequent abnormal switching is greatly reduced, the stability of customer service is facilitated, and customer experience is improved; meanwhile, after the NR network is restored, the user equipment can normally use the NR network.
Fig. 5 is a schematic structural diagram of a control device for switching between an NR network and an LTE network according to an embodiment of the present application. The apparatus of this embodiment may be in the form of software and/or hardware. As shown in fig. 5, the control device for switching between the NR network and the LTE network provided in this embodiment includes: a reception determination module 51, a first judgment module 52, and a first setting module 53. Wherein,
a receiving determining module 51, configured to receive redirection indication information sent by a base station, and determine, based on the redirection indication information, that a handover direction of the user equipment is to be handed over from an LTE network to an NR network;
a first judging module 52, configured to initiate a tracking area location update TAU request to the base station in a process of switching from the LTE network to the NR network, and judge whether a response result of the TAU request meets a preset handover-free condition; the preset switching-free condition is that the TAU refused times reach preset times and the refused reason value is a preset value, and the preset switching-free condition is used for reflecting the network abnormality;
a first setting module 53, configured to set an NR network state of the ue in a preset time period to an invalid state and stabilize the NR network state in the LTE network when it is determined that a response result of the TAU request meets the preset handover-free condition.
In a possible implementation manner, the control device for switching between the NR network and the LTE network further includes:
the timing module is used for starting a timer and counting down through the timer when the response result of the TAU request meets the preset condition without switching; and the time period from the countdown starting time to the ending time is the preset time period.
In a possible implementation manner, the control device for switching between the NR network and the LTE network further includes:
the second setting module is used for setting the NR network state of the user equipment to be an effective state after the countdown of the timer is finished;
the second judging module is used for judging whether the first measured value of the user equipment aiming at the first measured event reaches a first threshold of switching to the NR network or not under the following scene; the scene is a first scene in which the NR network state of the user equipment is an effective state, or a second scene in which the response result of the TAU request does not meet the preset switching-free condition is determined;
and the switching unit is used for switching to the NR network under the condition that the first measured value reaches the first threshold.
In a possible implementation manner, the control device for switching between the NR network and the LTE network further includes:
the receiving module is used for receiving a starting instruction of a user and controlling the power-on starting of the communication module based on the starting instruction;
the starting module is used for starting a network searching registration process to access an NR network;
and the execution judging module is used for executing data service under the NR network, judging whether a second measured value of the user equipment aiming at a second measured event reaches a second threshold switched to the LTE network or not, and redirecting to the LTE network under the condition that the second measured value reaches the second threshold.
In a possible implementation manner, the starting module is further configured to restart the network searching registration procedure to access the NR network after switching to the NR network.
In a possible implementation manner, the control device for switching between the NR network and the LTE network further includes: and the execution module is used for executing data service in the LTE network under the condition that the first measured value does not reach the first threshold.
In a possible implementation manner, the control device for switching between the NR network and the LTE network further includes: and the dialing module is used for dialing the upper computer based on a preset AT instruction. The embodiment of the application can realize the dialing of the upper computer based on the AT instruction or other instructions, and the embodiment of the application is not limited.
The control device for switching between the NR network and the LTE network provided in this embodiment may be used to execute the control method for switching between the NR network and the LTE network provided in any of the foregoing method embodiments, and its implementation principle and technical effects are similar, and are not described herein.
In the technical scheme of the application, the related processes of collecting, storing, using, processing, transmitting, providing, disclosing and the like of the personal information of the user accord with the regulations of related laws and regulations, and the public order colloquial is not violated.
According to embodiments of the present application, an electronic device and a readable storage medium are also provided.
Fig. 6 is a schematic structural diagram of an electronic device according to an embodiment of the present application. The electronic device comprises a receiver 60, a transmitter 61, at least one processor 62 and a memory 63, and the electronic device formed by the above components may be used to implement the above-mentioned specific embodiments of the present application, which are not described herein again.
The embodiment of the application further provides a computer readable storage medium, in which computer executable instructions are stored, and when the processor executes the computer executable instructions, the steps of the method in the above embodiment are implemented.
It should be appreciated that various forms of the flows shown above may be used to reorder, add, or delete steps. For example, the steps described in the disclosure of the present application may be performed in parallel, sequentially, or in a different order, provided that the desired results of the technical solutions disclosed in the present application are achieved, and are not limited herein.
The above embodiments do not limit the scope of the application. It will be apparent to those skilled in the art that various modifications, combinations, sub-combinations and alternatives are possible, depending on design requirements and other factors. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application are intended to be included within the scope of the present application.

Claims (10)

1. The control method for switching between the NR network and the LTE network is characterized by being applied to user equipment and comprising the following steps:
receiving redirection indication information sent by a base station, and determining that the switching direction of the user equipment is switched from an LTE network to an NR network based on the redirection indication information;
in the process of switching from the LTE network to the NR network, initiating a tracking area position updating TAU request to the base station, and judging whether a response result of the TAU request meets a preset switching-free condition; the preset switching-free condition is that the TAU refused times reach preset times and the refused reason value is a preset value, and the preset switching-free condition is used for reflecting the network abnormality;
and when the response result of the TAU request meets the preset handover-free condition, setting the NR network state of the user equipment in a preset time period to be an invalid state, and stabilizing the NR network state in an LTE network.
2. The control method for switching between an NR network and an LTE network according to claim 1, further comprising:
when the response result of the TAU request is determined to meet the preset switching-free condition, starting a timer, and counting down through the timer; and the time period from the countdown starting time to the ending time is the preset time period.
3. The control method for switching between an NR network and an LTE network according to claim 2, further comprising:
after the timer is counted down, setting the NR network state of the user equipment to be an effective state;
judging whether a first measured value of the user equipment for a first measured event reaches a first threshold for switching to an NR network or not under the following scene; the scene is a first scene in which the NR network state of the user equipment is an effective state, or a second scene in which the response result of the TAU request does not meet the preset switching-free condition is determined;
and switching to an NR network in the case that the first measured value reaches the first threshold.
4. The NR network and LTE network handover control method according to claim 3, further comprising, before receiving the redirection indication information sent by the base station:
receiving a starting instruction of a user, and controlling the communication module to be electrified and started based on the starting instruction;
starting a network searching registration process to access an NR network;
and executing data service under the NR network, judging whether a second measured value of the user equipment for a second measured event reaches a second threshold of switching to the LTE network, and redirecting to the LTE network under the condition that the second measured value reaches the second threshold.
5. The method for controlling handover between an NR network and an LTE network according to claim 4, further comprising:
after switching to the NR network, the network searching registration flow is restarted to access the NR network.
6. The control method for switching between an NR network and an LTE network according to claim 3, further comprising:
and executing data service in the LTE network under the condition that the first measured value does not reach the first threshold.
7. The method for controlling handover between an NR network and an LTE network according to claim 4, further comprising, after initiating a network search registration procedure to access the NR network:
and dialing the upper computer based on a preset AT instruction.
8. A control device for switching between an NR network and an LTE network, which is applied to a user equipment, and includes:
the receiving and determining module is used for receiving redirection indication information sent by the base station and determining that the switching direction of the user equipment is switched from the LTE network to the NR network based on the redirection indication information;
the first judging module is used for initiating a tracking area position updating TAU request to the base station in the process of switching from the LTE network to the NR network and judging whether a response result of the TAU request meets a preset switching-free condition or not; the preset switching-free condition is that the TAU refused times reach preset times and the refused reason value is a preset value, and the preset switching-free condition is used for reflecting the network abnormality;
and the first setting module is used for setting the NR network state of the user equipment in a preset time period to be an invalid state and stabilizing the NR network state in an LTE network when the response result of the TAU request meets the preset handover-free condition.
9. An electronic device, comprising: at least one processor and memory;
the memory stores computer-executable instructions;
the at least one processor executing computer-executable instructions stored in the memory causes the at least one processor to perform the control method of NR network-to-LTE network handover as claimed in any one of claims 1 to 7.
10. A computer readable storage medium, wherein computer executable instructions are stored in the computer readable storage medium, which when executed by a processor is configured to implement the control method for NR network and LTE network handover according to any one of claims 1 to 7.
CN202211096849.4A 2022-09-08 2022-09-08 Control method and device for switching NR network and LTE network and electronic equipment Pending CN117715123A (en)

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CN202211096849.4A CN117715123A (en) 2022-09-08 2022-09-08 Control method and device for switching NR network and LTE network and electronic equipment

Applications Claiming Priority (1)

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CN202211096849.4A CN117715123A (en) 2022-09-08 2022-09-08 Control method and device for switching NR network and LTE network and electronic equipment

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