CN111698764B

CN111698764B - Special frequency priority failure prevention method and system and anchor point 4G base station

Info

Publication number: CN111698764B
Application number: CN202010100769.6A
Authority: CN
Inventors: 张志荣; 朱雪田; 李志军; 夏旭
Original assignee: China Telecom Corp Ltd
Current assignee: China Telecom Corp Ltd
Priority date: 2020-02-19
Filing date: 2020-02-19
Publication date: 2021-03-02
Anticipated expiration: 2040-02-19
Also published as: CN111698764A

Abstract

The disclosure relates to a method and a system for preventing dedicated frequency priority from invalidation and an anchor point 4G base station. The special frequency priority failure prevention method comprises the following steps: after the updating process of the tracking area is completed, the anchor point 4G base station receives the user terminal capability reported by the user terminal; the anchor point 4G base station reports the user terminal capability to the packet core network; the anchor point 4G base station judges whether the user terminal has the capability of a non-independent networking terminal; under the condition that the user terminal has the capability of a non-independent networking terminal, the radio resource control connection release message sent by the anchor point 4G base station is provided with the special frequency priority information. The method and the device enable the 5G NSA terminal to rapidly enjoy the high rate of the 5G NR after the TAU is updated, thereby improving the user experience and being beneficial to the implementation and development of the co-construction and sharing of the 5G network.

Description

Special frequency priority failure prevention method and system and anchor point 4G base station

Technical Field

The disclosure relates to the field of 5G and co-construction sharing, in particular to a method and a system for preventing dedicated frequency priority from failing and an anchor point 4G base station.

Background

In a 5G (file Generation Mobile Communication System, 5 th Generation Mobile Communication System) NSA (non-independent networking) Network co-establishment sharing technical scheme, a Radio-Access Network (wireless-independent carrier sharing) is a shared baseband unit and a Radio frequency unit, an independent frequency Resource, and an independent Radio Resource Management (RRM) for Radio Resource Management (RRM), and independent service deployment. An MOCN (Multi-Operator Core Network, wireless shared carrier sharing) is used for sharing a baseband unit and a radio frequency unit, sharing frequency resources, sharing RRM (radio resource management) and deploying unified services.

Disclosure of Invention

The inventor finds out through research that: in the 5G NSA network co-construction sharing technical scheme, the dedicated frequency priority is disabled due to TAU (Tracking Area Update) Update, at this time, the broadcast priority is acted, the 5G NSA terminal can reside in the non-anchor 4G base station and cannot reside in the shared anchor 4G base station, so that the user cannot share the high speed of the shared station 5G NR, and the high speed experience of the user is seriously affected.

In view of at least one of the above technical problems, the present disclosure provides a dedicated frequency priority failure prevention method and system, anchor 4G base station, so that a 5G NSA terminal can quickly enjoy a high rate of 5G NR after TAU update.

According to an aspect of the present disclosure, there is provided a dedicated frequency priority failure prevention method, including:

after the updating process of the tracking area is completed, the anchor point 4G base station receives the user terminal capability reported by the user terminal;

the anchor point 4G base station reports the user terminal capability to the packet core network;

the anchor point 4G base station judges whether the user terminal has the capability of a non-independent networking terminal;

under the condition that the user terminal has the capability of a non-independent networking terminal, the radio resource control connection release message sent by the anchor point 4G base station is provided with the special frequency priority information.

In some embodiments of the present disclosure, the dedicated frequency priority failure prevention method further comprises:

under the condition that the user terminal does not have the capability of the non-independent networking terminal, the special frequency priority information is not contained in the wireless resource control connection release message sent by the anchor point 4G base station.

under the condition that the radio resource control connection release message sent by the anchor 4G base station does not contain the special frequency priority information, the user terminal is resided in the non-anchor 4G base station and enjoys the 4G medium-speed service.

under the condition that the radio resource control connection release message sent by the anchor point 4G base station has the special frequency priority information, the user terminal is resided in the anchor point 4G base station, the special frequency priority is effective, and the user terminal continues to enjoy the 5G new air interface high-speed service.

According to another aspect of the present disclosure, there is provided an anchor 4G base station, including:

a terminal capability reporting module, configured to receive a user terminal capability reported by a user terminal after a tracking area update procedure is completed; reporting the user terminal capability to a packet core network;

the terminal capability judging module is used for judging whether the user terminal has the capability of the non-independent networking terminal;

and the priority information sending module is used for carrying the special frequency priority information in the radio resource control connection release message sent by the anchor point 4G base station under the condition that the user terminal has the capability of the non-independent networking terminal.

In some embodiments of the present disclosure, the priority information sending module is configured to send the rrc connection release message without the dedicated frequency priority information in a case that the ue does not have the capability of the non-independent networking terminal.

a memory to store instructions;

a processor configured to execute the instructions to cause the apparatus to perform operations to implement the dedicated frequency priority failure prevention method according to any of the embodiments described above.

According to another aspect of the present disclosure, there is provided a dedicated frequency priority failure prevention system comprising an anchor 4G base station as described in any of the above embodiments.

In some embodiments of the present disclosure, the dedicated frequency priority failure prevention system further comprises:

the user terminal is used for residing in the non-anchor 4G base station and enjoying 4G medium-speed service under the condition that the wireless resource control connection release message sent by the anchor 4G base station does not contain special frequency priority information; and under the condition that the radio resource control connection release message sent by the anchor point 4G base station contains the special frequency priority information, the anchor point 4G base station resides in, the special frequency priority is effective, and the anchor point 4G base station continues to enjoy the 5G new air interface high-speed service.

According to another aspect of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions which, when executed by a processor, implement the dedicated frequency priority failure prevention method according to any of the above embodiments.

The method and the device enable the 5G NSA terminal to rapidly enjoy the high rate of the 5G NR after the TAU is updated, thereby improving the user experience and being beneficial to the implementation and development of the co-construction and sharing of the 5G network.

Drawings

In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a diagram illustrating a related art TAU causing a NSA dedicated frequency priority to fail and lose high speed performance.

Fig. 2a is a schematic diagram of some embodiments of the disclosed dedicated frequency priority failure prevention method.

Fig. 2b is a flowchart illustrating some embodiments of the dedicated frequency priority failure prevention method according to the present disclosure.

Fig. 3 is a schematic diagram of other embodiments of the dedicated frequency priority failure prevention method of the present disclosure.

Fig. 4 is a schematic diagram of some further embodiments of the disclosed dedicated frequency priority failure prevention method.

Fig. 5 is a schematic diagram of some further embodiments of the disclosed dedicated frequency priority failure prevention method.

Fig. 6 is a schematic diagram of some embodiments of an anchor 4G base station of the present disclosure.

Fig. 7 is a schematic diagram of other embodiments of an anchor 4G base station according to the present disclosure.

Fig. 8 is a schematic diagram of some embodiments of the disclosed dedicated frequency priority failure prevention system.

Detailed Description

The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the disclosure, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.

Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description.

Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

The inventor finds out through research that: in the schematic diagram of fig. 1, in which the related art TAU causes the NSA dedicated frequency priority to fail and loses the high-speed performance, in the 5G NSA network co-established sharing technical scheme, an NSA UE (user equipment) initiates a TAU procedure in an Idle state (standby state), a 4G base station cannot acquire UE capability information (cannot know whether the UE has NSA 5G capability), after RRC (Radio Resource Control) Connection Release, the dedicated frequency priority fails, the UE resides in a non-anchor 4G base station, and when data service needs to be performed, the UE initiates a 4G Connection in the non-anchor 4G base station (non-shared), cannot reside in the anchor 4G base station, cannot perform EN-DC (EUTRA-NR Dual Connection, new air interface-Dual Connection of evolved UMTS terrestrial Radio access network), loses the high-speed performance of the NSA 5G UE, the high-speed experience of the user is seriously influenced, wherein the UMTS is Universal Mobile Telecommunications System (Universal Mobile Telecommunications System).

In view of at least one of the above technical problems, the present disclosure provides a dedicated frequency priority failure prevention method and system, and an anchor point 4G base station, and the present disclosure is described below by specific embodiments.

Fig. 2a is a schematic diagram of some embodiments of the disclosed dedicated frequency priority failure prevention method. Fig. 2b is a flowchart illustrating some embodiments of the dedicated frequency priority failure prevention method according to the present disclosure. Preferably, this embodiment may be performed by the disclosed dedicated frequency priority failure prevention system or the disclosed anchor 4G base station. As shown in fig. 2a and 2b, the disclosed dedicated frequency priority failure prevention method may include the steps of:

step 21, after the update process of the tracking area is completed, the anchor point 4G base station receives the user terminal capability (UE capability) reported by the user terminal.

Step 22, the anchor point 4G base station reports the capability of the ue to EPC (Evolved Packet Core).

In step 23, the anchor point 4G base station determines whether the UE has the capability of the non-independent networking terminal (NSA 5G capability, NSA UE capability).

And step 24, under the condition that the user terminal has the capability of the non-independent networking terminal, the radio resource control connection release message sent by the anchor point 4G base station is provided with the special frequency priority information.

In some embodiments of the present disclosure, the dedicated frequency priority failure prevention method may further include: under the condition that the radio resource control connection release message sent by the anchor point 4G base station has the special frequency priority information, the user terminal (NSA 5G UE) resides in the anchor point 4G base station, the special frequency priority is effective, and the user terminal continues to enjoy the 5G new air interface high-speed service; when data service is carried out, 5G high-speed service is enjoyed through EN-DC dual connection.

In some embodiments of the present disclosure, the dedicated frequency priority failure prevention method may further include: under the condition that the user terminal does not have the capability of the non-independent networking terminal, the special frequency priority information is not contained in the wireless resource control connection release message sent by the anchor point 4G base station.

In some embodiments of the present disclosure, the dedicated frequency priority failure prevention method may further include: under the condition that the radio resource control connection release message sent by the anchor 4G base station does not contain the special frequency priority information, the user terminal (traditional 4G UE) is enabled to reside in the non-anchor 4G base station, and only the 4G medium-speed service is enjoyed when the user terminal is in data service.

Based on the dedicated frequency priority invalidation prevention method provided by the embodiment of the disclosure, after the TAU flow is completed and before RRC Connection Release, the flow that the UE reports the UE capability to the 4G base station is increased, the 4G base station determines whether the terminal is an NSA terminal or a normal 4G terminal, when the terminal is determined to be an NSA terminal and the RRC Connection Release is initiated, the terminal will have dedicated frequency priority information, and after the NSA UE obtains the dedicated frequency priority information, the NSA dedicated priority takes effect again, so that the NSA UE can be resided in the anchor point 4G base station again, when data service needs to be performed, 4G Connection can be initiated in the anchor point 4G base station (shared), and EN-DC dual Connection can be performed, high-speed performance of the NSA 5G UE is fully enjoyed, and user experience is improved.

Fig. 3 is a schematic diagram of other embodiments of the dedicated frequency priority failure prevention method of the present disclosure. Preferably, this embodiment may be performed by the disclosed dedicated frequency priority failure prevention system or the disclosed anchor 4G base station. The method comprises the following steps:

and step 31, the UE randomly accesses to the 4G anchor point station.

In step 32, the UE requests (TAU Request).

In step 33, the UE TAU completes (TAU Complete).

And step 34, reporting the UE capability to the eNB, and reporting the UE capability to the EPC.

Step 35, NSA UE capability judgment. If the user equipment has NSA UE capability, go to step 36; otherwise, if the user terminal has NSA UE capability, step 37 is performed.

Step 36, when the UE capability is NSA UE, the RRC Connection Release cell has dedicated frequency priority, and then step 38 is executed.

Step 37, when the UE capability is 4G UE, the RRC Connection Release cell has no dedicated frequency priority, and then step 39 is executed.

Step 38, therefore, under the NSA 5G co-establishment sharing technical scheme, after the TAU is updated, the dedicated frequency priority of the 5G NSA terminal is valid and can continue to enjoy the 5G NR high-speed service.

Step 39, under the condition that the radio resource control connection release message sent by the anchor 4G base station does not contain the dedicated frequency priority information, the user terminal (traditional 4G UE) is allowed to reside in the non-anchor 4G base station, and only enjoy the 4G medium-speed service when doing data service. .

The inventor discovers through research and development that: in the 5G NSA network co-construction sharing technical scheme, the dedicated frequency priority is disabled due to TAU update, at this time, the broadcast priority plays a role, and the 5G NSA terminal can reside in the non-anchor 4G base station and cannot reside in the shared anchor 4G base station, so that the user cannot share the high speed rate of the shared station 5G NR, and the high speed experience of the user is seriously affected.

The embodiments of the present disclosure provide a method, an apparatus, and a system for preventing dedicated frequency priority from being invalid due to TAU update, so as to effectively solve the above problems, so that a 5G NSA terminal can also quickly enjoy a high rate of 5G NR after TAU update, improve user experience, and facilitate implementation and development of 5G network co-establishment sharing.

Fig. 4 is a schematic diagram of some further embodiments of the disclosed dedicated frequency priority failure prevention method. Preferably, this embodiment may be performed by the disclosed dedicated frequency priority failure prevention system. In this embodiment, the user equipment is an NSA UE. The method may comprise the steps of:

step 41, the NSA UE randomly accesses to the 4G anchor station.

Step 42, NSA UE TAU Request (TAU Request).

Step 43, NSA UE TAU Complete (TAU Complete).

Step 44, reporting the NSA UE capability to the eNB, and reporting the NSA UE capability to the EPC;

step 45, the NSA UE capability is judged as Yes, so that the RRC Connection Release cell has a special frequency priority.

Step 46, thus realizing that under the NSA 5G co-construction sharing technical scheme, after the TAU is updated, the dedicated frequency priority of the 5G NSA terminal is valid and can continue to enjoy the 5G NR high-speed service.

Fig. 5 is a schematic diagram of some further embodiments of the disclosed dedicated frequency priority failure prevention method. Preferably, this embodiment may be performed by the disclosed dedicated frequency priority failure prevention system. In this embodiment, the UE is a conventional 4G UE. The method may comprise the steps of:

and step 51, the 4G UE randomly accesses to the 4G non-anchor station.

Step 52, 4G UE TAU Request (TAU Request).

Step 53, 4G UE TAU Complete (TAU Complete).

And step 54, reporting the 4G UE capability to the eNB, and reporting the 4G UE capability to the EPC.

Step 55, the NSAUE capability is judged to be No, so that the RRC Connection Release cell does not have the special frequency priority.

And step 56, under the NSA 5G co-construction sharing technical scheme, the 4G terminal continues to enjoy the 4G medium-speed service after the TAU is updated.

The inventor finds out through research that: in the related art 5G NSA network co-construction sharing technical scheme, the dedicated frequency priority is disabled due to TAU update, and at this time, the broadcast priority is acted, and the 5G NSA terminal can reside in the non-anchor 4G base station and cannot reside in the shared anchor 4G base station, so that the user cannot enjoy the high speed of the shared station 5G NR, and the high speed experience of the user is seriously affected. Through inquiry, relevant patents, standards and articles which solve the problems are found in the related art.

The embodiments of the present disclosure provide a method, an apparatus, and a system for preventing dedicated frequency priority from being invalid due to TAU update innovatively, which can effectively solve the problem that a 5G NSA terminal can reside in a non-anchor 4G base station and cannot enjoy a 5G NR high-speed service after TAU update when 2 operators share the TAU, thereby reducing network construction cost while greatly improving user experience, and facilitating implementation and development of a 5G network co-construction sharing technical scheme.

Compared with the related art, the embodiment of the present disclosure has the following advantages and effects:

1. in the current standardization formulation and improvement process of 5G network co-construction and sharing, the embodiment of the disclosure has stronger pertinence.

2. The embodiment of the present disclosure can effectively solve the problem that after the TAU is updated, the dedicated frequency priority of the 5G NSA terminal is invalid and cannot enjoy the 5G NR high-speed service.

3. The network side and the terminal side of the embodiment of the disclosure are less modified, the scheme is small in design and easy to popularize.

4. The embodiment of the disclosure greatly improves the reliability and completeness of the 5G co-construction sharing technical scheme, shortens the network construction period and reduces the network construction cost.

5. The embodiment of the disclosure can be compatible with NSA UE and 4G UE, and the system compatibility is good.

6. The embodiment of the disclosure has low implementation complexity and is easy to realize in a system.

Fig. 6 is a schematic diagram of some embodiments of an anchor 4G base station of the present disclosure. As shown in fig. 6, the anchor point 4G base station of the present disclosure may include a terminal capability reporting module 61, a terminal capability determining module 62, and a priority information sending module 63, where:

a terminal capability reporting module 61, configured to receive a user terminal capability reported by a user terminal after the tracking area update process is completed; and reporting the user terminal capability to a packet core network.

And a terminal capability judging module 62, configured to judge whether the user terminal has a capability of a non-independent networking terminal.

A priority information sending module 63, configured to, when the ue has the capability of a non-independent networking terminal, carry dedicated frequency priority information in a rrc connection release message sent by the anchor 4G base station.

In some embodiments of the present disclosure, the priority information sending module may be configured to send the rrc connection release message without the dedicated frequency priority information in a case that the ue does not have the capability of the non-independent networking terminal.

Fig. 7 is a schematic diagram of other embodiments of an anchor 4G base station according to the present disclosure. As shown in fig. 7, the anchor 4G base station of the present disclosure may include a memory 71 and a processor 72, wherein:

a memory 71 for storing instructions.

A processor 72 configured to execute the instructions to cause the apparatus to perform operations to implement the dedicated frequency priority failure prevention method according to any of the embodiments described above (e.g., any of the embodiments of fig. 2a, 2b, 3-5).

Based on the anchor point 4G base station provided by the embodiment of the disclosure, the UE capability is added to report signaling to the eNB; newly increasing the capability of UE capability and reporting signaling to EPC; the NSA UE capability judgment is newly added, and the RRC Connection Release is determined to carry different cells according to the result of the NSA UE capability judgment, so that the UE with different capabilities can continue to enjoy services with different rates after TAU update under the 5G NSA co-construction sharing technical scheme.

Fig. 8 is a schematic diagram of some embodiments of the disclosed dedicated frequency priority failure prevention system. As shown in fig. 8, the dedicated frequency priority invalidation prevention system of the present disclosure may include an anchor 4G base station 81 and a user terminal 82, where:

the anchor point 4G base station 81 is configured to receive the ue capability reported by the ue after the tracking area update process is completed; reporting the user terminal capability to a packet core network; judging whether the user terminal has the capability of a non-independent networking terminal; under the condition that a user terminal has the capability of a non-independent networking terminal, the radio resource control connection release message sent by the anchor point 4G base station is provided with special frequency priority information; under the condition that the user terminal does not have the capability of the non-independent networking terminal, the radio resource control connection release message sent by the anchor point 4G base station does not contain the special frequency priority information.

In some embodiments of the present disclosure, the anchor 4G base station 81 may be an anchor 4G base station as described in any of the embodiments above (e.g., the embodiments of fig. 6 or fig. 7).

The user terminal 82 is configured to reside in a non-anchor 4G base station and enjoy a 4G medium-speed service when the dedicated frequency priority information is not included in the radio resource control connection release message sent by the anchor 4G base station; and under the condition that the radio resource control connection release message sent by the anchor point 4G base station contains the special frequency priority information, the anchor point 4G base station resides in, the special frequency priority is effective, and the anchor point 4G base station continues to enjoy the 5G new air interface high-speed service.

In some embodiments of the present disclosure, the anchor 4G base station 81 and the user terminal 82 may be the anchor 4G base station and the user terminal in the embodiment of fig. 2 a.

The embodiment of the present disclosure provides a system for preventing dedicated frequency priority from being invalid due to TAU update innovatively, which can effectively solve the problem that a 5G NSA terminal can reside in a non-anchor 4G base station and cannot enjoy 5G NR high-speed services after TAU update when 2 operators share the TAU, thereby reducing network construction cost, greatly improving user experience, and facilitating implementation and development of a 5G network co-construction sharing technical scheme.

According to another aspect of the present disclosure, a computer-readable storage medium is provided, wherein the computer-readable storage medium stores computer instructions, which when executed by a processor, implement the dedicated frequency priority failure prevention method according to any of the embodiments described above (e.g., any of fig. 2a, fig. 2b, and fig. 3-fig. 5).

In the current standardization formulation and improvement process of 5G network co-construction and sharing, the embodiment of the disclosure has stronger pertinence.

The embodiment of the present disclosure can effectively solve the problem that after the TAU is updated, the dedicated frequency priority of the 5G NSA terminal is invalid and cannot enjoy the 5G NR high-speed service.

The network side and the terminal side of the embodiment of the disclosure are less modified, the scheme is small in design and easy to popularize.

The embodiment of the disclosure greatly improves the reliability and completeness of the 5G co-construction sharing technical scheme, shortens the network construction period and reduces the network construction cost.

The embodiment of the disclosure can be compatible with NSA UE and 4G UE, and the system compatibility is good.

The embodiment of the disclosure has low implementation complexity and is easy to realize in a system.

The anchor 4G base station, user terminal, described above may be implemented as a general purpose processor, a Programmable Logic Controller (PLC), a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field Programmable Gate Array (FPGA) or other programmable logic device, discrete gate or transistor logic, discrete hardware components, or any suitable combination thereof, for performing the functions described herein.

Thus far, the present disclosure has been described in detail. Some details that are well known in the art have not been described in order to avoid obscuring the concepts of the present disclosure. It will be fully apparent to those skilled in the art from the foregoing description how to practice the presently disclosed embodiments.

It will be understood by those skilled in the art that all or part of the steps for implementing the above embodiments may be implemented by hardware, or may be implemented by a program instructing relevant hardware to implement the above embodiments, where the program may be stored in a computer-readable storage medium, and the above-mentioned storage medium may be a read-only memory, a magnetic disk, an optical disk, or the like.

The description of the present disclosure has been presented for purposes of illustration and description, and is not intended to be exhaustive or limited to the disclosure in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the disclosure and the practical application, and to enable others of ordinary skill in the art to understand the disclosure for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A dedicated frequency priority failure prevention method, comprising:

after the updating process of the tracking area is completed, the anchor point 4G base station receives user terminal capability information reported by a user terminal, wherein the user terminal capability information is used for judging whether the user terminal has the capability of a non-independent networking terminal;

the anchor point 4G base station reports the user terminal capability information to a packet core network;

the anchor point 4G base station judges whether the user terminal has the capability of the non-independent networking terminal according to the capability information of the user terminal;

under the condition that the user terminal has the capability of a non-independent networking terminal, the radio resource control connection release message sent to the user terminal by the anchor point 4G base station is provided with special frequency priority information.

2. The dedicated frequency priority failure prevention method of claim 1, further comprising:

3. The dedicated frequency priority failure prevention method according to claim 2, further comprising:

4. The dedicated frequency priority failure prevention method according to any one of claims 1 to 3, further comprising:

5. An anchor 4G base station, comprising:

a terminal capability reporting module, configured to receive a user terminal capability reported by a user terminal after a tracking area update procedure is completed; reporting the user terminal capability information to a packet core network, wherein the user terminal capability information is used for judging whether the user terminal has the capability of a non-independent networking terminal;

the terminal capability judging module is used for judging whether the user terminal has the capability of the non-independent networking terminal according to the user terminal capability information;

and the priority information sending module is used for carrying the special frequency priority information in the radio resource control connection release message sent to the user terminal by the anchor point 4G base station under the condition that the user terminal has the capability of a non-independent networking terminal.

6. The anchor 4G base station of claim 5,

and the priority information sending module is used for sending the wireless resource control connection release message without the special frequency priority information by the anchor point 4G base station under the condition that the user terminal does not have the capability of the non-independent networking terminal.

7. An anchor 4G base station, comprising:

a memory to store instructions;

a processor configured to execute the instructions to cause the anchor 4G base station to perform operations to implement the dedicated frequency priority failure prevention method of claim 1 or 2.

8. A dedicated frequency priority failure prevention system comprising an anchor 4G base station according to any of claims 5 to 7.

9. The dedicated frequency priority failure prevention system of claim 8, further comprising:

10. A computer-readable storage medium storing computer instructions which, when executed by a processor, implement the dedicated frequency priority failure prevention method of any one of claims 1-4.