WO2016112643A1

WO2016112643A1 - Method and apparatus for service recovery and computer storage medium

Info

Publication number: WO2016112643A1
Application number: PCT/CN2015/082195
Authority: WO
Inventors: 武见; 马德宝; 贺保国; 董建军; 刘鑫
Original assignee: 中兴通讯股份有限公司
Priority date: 2015-01-16
Filing date: 2015-06-24
Publication date: 2016-07-21
Also published as: CN105848173A; CN105848173B

Abstract

Disclosed is a method for service recovery after a failure of decryption or decompression. The method comprises: determining whether the number of failures of PDCP packet decryption or decompression reaches a preset threshold; and when determining that the number of failures of PDCP packet decryption or decompression reaches the preset threshold, initiating an intra-cell handover. Meanwhile, disclosed is an apparatus for service recovery after a failure of decryption or decompression. Also disclosed is a computer storage medium.

Description

Business recovery method, device and computer storage medium

Technical field

The present invention relates to the field of mobile terminals, and in particular, to a service recovery method, apparatus, and computer storage medium after a failure of decryption or decompression.

Background technique

In order to protect the security of the user information, a certain degree of encryption and integrity protection algorithms are usually used in the packet data convergence protocol (PDCP) packet transmission process in the wireless mobile network. Common encryption and integrity protection algorithms are used. There are: Advanced Encryption Standard (AES) algorithm, SNOW 3G algorithm and Zu Chong algorithm.

However, in actual application scenarios, for example, decryption failures caused by problems such as parameter maintenance errors used for decryption occur.

On the other hand, in order to improve the utilization of the air interface bandwidth, a packet header compression algorithm such as a robust ROCH (RObust Header Compression) algorithm is introduced, that is, a technique for compressing a protocol header in a service packet.

However, in the actual application scenario, the decompression fails frequently.

In the prior art, when the above-mentioned decryption failure or decompression failure occurs, the service is interrupted, and the user can only re-access to recover the service.

Summary of the invention

Embodiments of the present invention are directed to providing a service recovery method, apparatus, and computer storage medium after decryption or decompression failure.

An embodiment of the present invention provides a service recovery method after a failure of decryption or decompression, Methods include:

The base station side user plane determines whether the number of times the packet data aggregation protocol PDCP packet decryption fails or the decompression fails to reach a preset threshold; when it is determined that the number of failed PDCP packet decryption or decompression reaches a preset threshold, the base station side control plane is initiated. Switch within the cell.

In the above solution, it is determined whether the PDCP packet fails to be decrypted in the following manner:

After the PDCP packet is decrypted, it is determined whether the value of the fixed field in the decrypted PDCP packet is correct. If yes, it is determined that the PDCP packet is successfully decrypted; if not, the PDCP packet decryption is determined to be unsuccessful.

In the above solution, the decompression of the PDCP packet includes: the PDCP packet decompression execution failure and the PDCP packet decompression context search failure.

In the above solution, it is determined whether the PDCP packet is decompressed and executed in the following manner:

Determining whether the value of the cyclic redundancy check CRC field in the decompressed message is incorrect after decompressing the packet compressed by the packet header, and if so, determining that the PDCP packet decompression execution fails; if the value of the CRC field is correct Determine the successful execution of the decompression of the PDCP packet.

In the foregoing solution, the PDCP packet decompression context search failure is determined by the following methods:

Determining whether a context identifier CID exists in the packet compressed by the packet header;

When there is no CID in the packet compressed by the packet header, it is determined that the PDCP packet decompression context search fails. When the CID exists in the packet compressed by the packet header, it is determined that the PDCP packet decompression context is successfully searched.

In the foregoing solution, the number of times the PDCP packet decryption fails is determined to be a preset threshold by:

Initialize the number of decryption failure counters;

When the decryption of the PDCP packet fails, the counter value of the number of decryption failures is incremented by one; when the decryption of the PDCP packet is successful, the counter of the number of decryption failures is cleared;

When the decryption failure counter value reaches the preset threshold, the number of PDCP packet decryption failures is determined. The preset threshold is reached and the decryption failure counter is cleared.

In the foregoing solution, the number of failed PDCP packet decompressions is determined to be a preset threshold in the following manner:

Initializing the number of decompression failure counters; when the PDCP packet decompression fails, the decompression failure counter value is incremented by one; when the PDCP packet decompression is successful, the decompression failure counter is cleared;

When the decompression failure counter value reaches the preset threshold, it is determined that the number of PDCP packet decompression failures reaches a preset threshold, and the decompression failure counter is cleared.

In the foregoing solution, when it is determined that the number of failed PDCP packet decryption reaches a preset threshold, the base station side control plane is instructed to initiate intra-cell handover according to the following manner:

Reconfiguring the PDCP entity in the base station, and instructing the terminal to reconfigure the PDCP entity in the terminal;

When it is determined that the number of failed PDCP packet deactivation attempts to reach a preset threshold, the base station side control plane is instructed to initiate intra-cell handover according to the following manner:

The header compression entity in the base station is reset, instructing the terminal to reconfigure the header compression entity in the terminal.

The embodiment of the present invention provides a service recovery device after a failure of decryption or decompression, which is located at a user plane of a base station, and the device includes: a first determining module, a second determining module, and an indicating module;

The first determining module is configured to determine whether the number of failed packet data aggregation protocol PDCP packet decryption reaches a preset threshold;

The second determining module is configured to determine whether the number of failed PDCP packet decompression reaches a preset threshold;

The indication module is configured to: when the first determining module determines that the number of failed PDCP packet decryption reaches a preset threshold, instructs the base station side control plane to initiate intra-cell handover; and is configured to: when the second determining module determines that the PDCP packet decompression fails When the number of times reaches the preset threshold, the control plane is initiated. Switch within the cell.

In the above solution, the first determining module is configured as

In the foregoing solution, the second determining module is configured to determine whether the value of the cyclic redundancy check CRC field in the decompressed packet is incorrect after the packet compressed by the packet header is decompressed, and if yes, determine the PDCP packet solution. The compression execution fails. If the value of the CRC field is correct, it is determined that the PDCP packet decompression is successfully executed.

In the above solution, the second determining module is configured to determine whether a context identifier CID exists in the packet compressed by the packet header;

In the above solution, the first determining module is configured to initialize a decryption failure counter;

When the decryption failure counter value reaches the preset threshold, it is determined that the number of PDCP packet decryption failures reaches a preset threshold, and the decryption failure counter is cleared.

In the above solution, the second determining module is configured to initialize the decompression failure counter; when the PDCP packet decompression fails, the decompression failure counter value is incremented by one; when the PDCP packet is decompressed successfully, the decompression failure counter is Cleared

Determining the decompression of the PDCP packet when the decompression failure counter reaches the preset threshold. The number of times reaches the preset threshold and the decompression failure counter is cleared.

In the foregoing solution, the indication module is configured to, when determining that the number of failed PDCP packet decryption reaches a preset threshold, instruct the base station side control plane to initiate intra-cell handover according to the following manner:

When it is determined that the number of failed PDCP packet deactivation attempts to reach a preset threshold, the indication module instructs the base station side control plane to initiate intra-cell handover according to the following manner:

The embodiment of the invention further provides a computer storage medium, wherein the computer storage medium stores computer executable instructions, and the computer executable instructions are used to perform at least one of the foregoing methods.

The method and device for recovering the service after the failure of the decryption or decompression and the computer storage medium provided by the embodiment of the present invention determine whether the number of failed PDCP packet decryption or decompression fails to reach a preset threshold; when determining the PDCP protocol packet When the number of times of decryption or decompression fails reaches a preset threshold, intra-cell handover is initiated. In this manner, when the number of times the PDCP packet decryption fails or the number of failed decompressions reaches a preset threshold, the intra-cell handover can be initiated, so that the user service can be restored in time without interrupting the current service of the user, and the user experience is greatly improved.

DRAWINGS

1 is a flowchart of a service recovery method after a failure of decryption or decompression according to an embodiment of the present invention;

2 is a basic structural diagram of a service recovery apparatus after a decryption or decompression failure according to an embodiment of the present invention;

3 is an exemplary flowchart 1 of a service recovery method after a failure of decryption or decompression according to an embodiment of the present invention;

4 is an example of a service recovery method after a decryption or decompression fails according to an embodiment of the present invention Sexual flow chart two.

detailed description

In the embodiment of the present invention, it is determined whether the number of times the PDCP packet decryption fails or the decompression fails to reach a preset threshold; when it is determined that the number of times the PDCP protocol packet decryption or decompression fails reaches a preset threshold, the intra-cell handover is initiated.

The invention will be further described in detail with reference to the accompanying drawings and the accompanying drawings. .

Embodiment 1

The first embodiment of the present invention provides a service recovery method after a failure of decryption or decompression. As shown in FIG. 1, the method includes the following steps:

Step 101: Determine whether the number of times the PDCP packet decryption fails or the decompression fails reaches a preset threshold.

Specifically, in this step, when receiving the PDCP packet of the specific service type sent by the terminal, the user plane of the base station decrypts or decompresses the packet according to the actual situation of the PDCP packet, that is, for the encryption. The PDCP packet, the base station side user faces the decryption operation, and the base station side user faces the decompression operation for the header compressed PDCP packet (that is, the PDCP packet subjected to the packet header compression); That is, the PDCP that is encrypted and compressed by the header is that the user side of the base station side decrypts the operation on the one hand, and decompresses the operation on the other hand.

Specifically, the following method can be used to determine whether the PDCP packet fails to be decrypted:

After decrypting the PDCP packet, determining whether the value of the fixed field in the decrypted PDCP packet is correct, and if yes, determining that the PDCP packet is successfully decrypted; if not, determining that the PDCP packet is decrypted; The fixed field is the protocol-related field in the PDCP packet. For example, for the PDCP packet carrying the IPV4 service, the version number of the protocol indicated in the protocol-related field is 4. The header of the protocol. Length (Headerlength) 20: For the PDCP packet carrying the IPV6 service, the version of the protocol indicated in the field related to the protocol is 6; in addition to the current IPV4 and IPV6 services, the judgment process can also be applied to the PDCP of other types of protocol services. The packet is used to detect whether the PDCP packet has failed to be decrypted.

Specifically, the decompression of the PDCP packet fails, and the PDCP packet decompression execution failure and the PDCP packet decompression context search failure.

You can determine whether PDCP packet decompression fails to be executed in the following manner:

Determining whether the value of the Cyclic Redundancy Check (CRC) field in the decompressed packet is incorrect after the decompressed packet is decompressed, and if yes, determining that the PDCP packet decompression execution fails. Correspondingly, if the value of the CRC field is correct, it is determined that the PDCP packet decompression is successfully executed. This is because the packet compressed by the header includes a CRC field, which is used to verify whether the data in the decompressed message is correct; that is, when the CRC field does not change before and after decompression (ie, If the value is correct, the PDCP packet is decompressed successfully. When the CRC field is changed before and after the decompression (that is, the value is incorrect), the PDCP packet decompression is determined to be unsuccessful.

You can determine whether the PDCP packet decompression context search fails because of the following:

Determining whether there is a context identifier (CID, Context Identifier) in the packet compressed by the packet header, where the CID is used to identify the decompression context of the PDCP packet. Therefore, when there is no CID in the packet compressed by the packet header, it is determined. The PDCP packet decompression context search fails. Correspondingly, when the CID exists in the packet compressed by the packet header, it is determined that the PDCP packet decompression context is successfully searched.

Step 102: Initiate an intra-cell handover when it is determined that the number of failed PDCP protocol packet decryption or decompression reaches a preset threshold.

Specifically, before determining that the number of times the PDCP protocol packet decryption or decompression fails to reach the preset threshold, the preset threshold of the number of decryption failures needs to be preset, and the preset number of decryption failures is preset. The threshold can be set according to actual needs. For example, when the tolerance for decryption failure is high, the preset threshold can be set relatively large; when the tolerance for decryption failure is low, the preset threshold can be set. The setting is relatively small; in addition, the decryption failure number counter and/or the decompression failure number counter need to be set in advance.

Specifically, the number of times the PDCP packet decryption fails to reach a preset threshold is determined by:

Initialize the number of decryption failure counters;

When the decryption failure counter value reaches the preset threshold, it is determined that the number of PDCP packet decryption failures reaches a preset threshold; and before the decryption failure counter value reaches a preset threshold, it is determined that the number of PDCP packet decryption failures does not reach a preset threshold, and Clear the decryption failure counter.

The number of failed PDCP packet decompressions reaches the preset threshold in the following manner:

Further, when the number of failed PDCP packet decryption reaches a preset threshold, an error code indicating that the PDCP packet decryption fails is returned to the control plane; and after receiving the error code for indicating that the PDCP packet fails to be decrypted, the control plane initiates Switching within the cell, reconfiguring the PDCP entity in the base station, and initiating a reconfiguration message to the terminal to instruct the terminal to reconfigure the PDCP entity in the terminal; thus, the PDCP SN also starts from 0, and can ensure that the parameters used for encryption and decryption are initialized. In this way, the continuity of the service can be ensured, and the security of the user can be ensured. Then, the terminal sends the PDCP packet after the PDCP entity is reconfigured to the user plane of the base station, and the PDCP packet after the PDCP entity is reconfigured. It includes the parameters used for encryption and decryption.

When the number of failed PDCP packet decompressions reaches a preset threshold, an error code indicating that the PDCP packet is uncompressed is returned to the control plane; and after receiving the error code for indicating that the PDCP packet is uncompressed, the control plane initiates The intra-cell handover, resetting the header compression entity in the base station and instructing the terminal to reset the header compression entity; further, after the terminal resets the header compression entity, the PDCP packet after resetting the header compression entity is sent to the base station side user plane; The PDCP packet after the reset header is compressed includes the decompression context, which also ensures the continuity of the service and makes the user experience better.

Embodiment 2

The second embodiment of the present invention provides a service recovery device after the decryption or decompression is failed, and is located at the base station side user plane. As shown in FIG. 2, the device includes: a first determining module 21, a second determining module 22, and an indication. Module 23; wherein

The first determining module 21 is configured to determine whether the number of failed PDCP packet decryption reaches a preset threshold;

The second determining module 22 is configured to determine whether the number of failed PDCP packet decompression reaches a preset threshold;

The indication module 23 is configured to: when the first determining module determines that the number of failed PDCP packet decryption reaches a preset threshold, instructs the base station side control plane to initiate intra-cell handover; and is further configured to: when the second determining module determines to decompress the PDCP packet When the number of failures reaches a preset threshold, the control plane is instructed to initiate an intra-cell handover.

Specifically, the first judging module 21 determines whether the PDCP packet fails to be decrypted in the following manner: that is, the first judging module 21 is configured to determine, after decrypting the PDCP packet, a fixed field in the decrypted PDCP packet. If the value is correct, if yes, it is determined that the PDCP packet is successfully decrypted; if not, it is determined that the PDCP packet decryption fails.

More specifically, the second determining module 22 determines whether the PDCP packet fails to be decompressed and executed in the following manner: that is, the second judging module 22 is configured to determine that the packet compressed by the packet header is decompressed and decompressed. Whether the value of the CRC field in the packet is incorrect. If yes, it is determined that the decompression of the PDCP packet is unsuccessful. If the value of the CRC field is correct, the decompression of the PDCP packet is determined to be successful.

Specifically, the second determining module 22 determines that the PDCP packet decompression context search fails by: and the second judging module 22 is further configured to

Specifically, the first determining module 21 determines that the number of failed PDCP packet decryption reaches a preset threshold by:

Initialize the number of decryption failure counters;

When the decryption failure counter value reaches the preset threshold, it is determined that the number of PDCP packet decryption failures reaches a preset threshold and the decryption failure counter is cleared.

Specifically, the second determining module 22 determines that the number of PDCP packet decompression failures reaches a preset threshold by using the following manner: that is, the second determining module 22 is further configured to:

Specifically, when it is determined that the number of failed PDCP packet decryption reaches a preset threshold, the indication module 23 instructs the base station side control plane to initiate intra-cell handover according to the following manner:

The determining module 23 instructs the base station side control plane to initiate an intra-cell handover according to the following manners when it is determined that the number of failed PDCP packet decompressions reaches a preset threshold:

The method described in the embodiment of the present invention is described in detail below through two specific examples.

Example one

As shown in Figure 3, Example 1 includes the following steps:

S301: The terminal sends the encrypted PDCP packet to the user plane of the base station side.

During the execution of the service, the terminal continuously sends the encrypted PDCP packet to the user plane of the base station.

S302: The user plane on the base station side confirms that the number of failed PDCP packet decryption reaches a preset threshold.

In this step, the base station side user plane initializes the PDCP decryption failure number counter Counter1 value is 0, and sets the preset threshold value Limit1 of the number of PDCP decryption failures to a fixed value of 6;

Counter1++ when the PDCP packet decryption fails, otherwise, reset Counter to 0;

Check whether the value of the Counter1 is greater than or equal to the value of Limit1. If yes, confirm that the number of failed PDCP packet decryption reaches a preset threshold.

S303: Send a PDCP decryption failure error code to the control plane on the base station side.

In this step, you also need to clear the Counter1 value to recount.

S304: The control plane initiates intra-cell handover.

S305: Send a first reconfiguration indication message to the base station side user plane to instruct the base station side user plane to reconfigure the entity that includes the PDCP.

S306: The base station side user plane reconfigures an entity that includes the PDCP.

S307: Send a second reconfiguration indication message to the terminal, to instruct the terminal to reconfigure the entity that includes the PDCP in the terminal.

S308: The terminal side reconfigures an entity that includes the PDCP.

S309: The terminal side returns a reconfiguration complete message to the base station side control plane.

It should be noted that the above steps S305 and S307 may be performed simultaneously or may not be performed at the same time.

Example two

As shown in Figure 4, Example 2 includes the following steps:

S401: The terminal sends the header compressed PDCP packet to the user plane of the base station side.

During the service execution, the terminal continuously sends the header-suppressed PDCP packet to the user plane of the base station.

S402: The user plane of the base station confirms that the number of failed PDCP packet decompression reaches a preset threshold.

In this step, the base station side user plane initializes the PDCP decompression failure number counter Counter2 value is 0, and sets the preset threshold value Limit2 of the number of PDCP decompression failures to a fixed value of 5;

Counter2++ when the PDCP packet decryption fails, otherwise, reset Counter2 to 0;

Check whether the value of Counter2 is greater than or equal to Limited2. If yes, confirm that the number of failed PDCP packet decryption reaches a preset threshold.

S403: Send a PDCP decompression failure error code to the control plane on the base station side.

In this step, you also need to clear the Counter2 value to recount.

S404: The control plane initiates intra-cell handover.

S405: Send a first reconfiguration indication message to the base station side user plane to indicate the base station side user plane reconfiguration header compression entity.

S406: The base station side user plane reconfiguration header compression entity;

S407: Send a second reconfiguration indication message to the terminal, to instruct the terminal to reconfigure the header in the terminal. Compress the entity.

S408: The terminal side reconfigures the header compression entity.

S409: The terminal side returns a reconfiguration complete message to the base station side control plane.

It should be noted that the above steps S405 and S407 may be performed simultaneously or may not be performed at the same time.

In the specific implementation process, the first determining module 21, the second determining module 22, and the indicating module 23 may be configured by a central processing unit (CPU), a microprocessor (MPU, a micro processing unit), and a digital unit in the base station. It is implemented by a Signal Processor (DSP) or a Field-Programmable Gate Array (FPGA).

The embodiment of the present invention further provides a computer storage medium, where the computer storage medium stores computer executable instructions, and the computer executable instructions are used in at least one of the foregoing methods; specifically, as shown in FIG. 1 and FIG. At least one of the methods shown in FIG. The computer storage medium described in this embodiment may include a mobile storage device, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like. Medium. In some embodiments the computer storage medium is a non-transitory storage medium such as a ROM.

Those skilled in the art will appreciate that embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention can take the form of a hardware embodiment, a software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.

The present invention has been described with reference to flowchart illustrations and/or block diagrams of methods, apparatus (system), and computer program products according to embodiments of the invention. It will be understood that each of the processes and/or blocks in the flowcharts and/or block diagrams, and in the flowcharts and/or block diagrams, can be implemented by computer program instructions. / or a combination of boxes. These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device. Means for implementing the functions specified in one or more of the flow or in a block or blocks of the flow chart.

The computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device. The apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.

These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device. The instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

The above is only the preferred embodiment of the present invention and is not intended to limit the scope of the present invention. Modifications made in accordance with the principles of the invention are understood to fall within the scope of the invention.

Claims

A service recovery method after a failure of decryption or decompression, the method comprising:

The base station side user plane determines whether the number of times the packet data aggregation protocol PDCP packet decryption fails or the decompression fails to reach a preset threshold; when it is determined that the number of failed PDCP packet decryption or decompression reaches a preset threshold, the base station side control plane is initiated. Switch within the cell.
The method according to claim 1, wherein it is determined whether the PDCP message fails to be decrypted by:

After the PDCP packet is decrypted, it is determined whether the value of the fixed field in the decrypted PDCP packet is correct. If yes, it is determined that the PDCP packet is successfully decrypted; if not, the PDCP packet decryption is determined to be unsuccessful.
The method according to claim 1, wherein the PDCP packet decompression failure comprises: PDCP packet decompression execution failure and PDCP packet decompression context search failure.
The method according to claim 3, wherein determining whether the PDCP message is decompressed and executing fails is as follows:

Determining whether the value of the cyclic redundancy check CRC field in the decompressed message is incorrect after decompressing the packet compressed by the packet header, and if so, determining that the PDCP packet decompression execution fails; if the value of the CRC field is correct Determine the successful execution of the decompression of the PDCP packet.
The method according to claim 3, wherein the PDCP message decompression context lookup failure is determined by:

Determining whether a context identifier CID exists in the packet compressed by the packet header;

When there is no CID in the packet compressed by the packet header, it is determined that the PDCP packet decompression context search fails. When the CID exists in the packet compressed by the packet header, it is determined that the PDCP packet decompression context is successfully searched.
The method according to claim 1 or 2, wherein the PDCP is determined by the following method The number of times the packet failed to decrypt reached the preset threshold:

Initialize the number of decryption failure counters;

When the decryption of the PDCP packet fails, the counter value of the number of decryption failures is incremented by one; when the decryption of the PDCP packet is successful, the counter of the number of decryption failures is cleared;

When the decryption failure counter value reaches the preset threshold, it is determined that the number of PDCP packet decryption failures reaches a preset threshold, and the decryption failure counter is cleared.
The method according to any one of claims 3-5, wherein the number of PDCP packet decompression failures is determined to be a preset threshold by:

Initializing the number of decompression failure counters; when the PDCP packet decompression fails, the decompression failure counter value is incremented by one; when the PDCP packet decompression is successful, the decompression failure counter is cleared;

When the decompression failure counter value reaches the preset threshold, it is determined that the number of PDCP packet decompression failures reaches a preset threshold, and the decompression failure counter is cleared.
The method according to claim 1, wherein when it is determined that the number of failed PDCP packet decryption reaches a preset threshold, the base station side control plane is instructed to initiate an intra-cell handover according to the following manner:

Reconfiguring the PDCP entity in the base station, and instructing the terminal to reconfigure the PDCP entity in the terminal;

When it is determined that the number of failed PDCP packet deactivation attempts to reach a preset threshold, the base station side control plane is instructed to initiate intra-cell handover according to the following manner:

The header compression entity in the base station is reset, instructing the terminal to reconfigure the header compression entity in the terminal.
A device for recovering or decompressing the service is located on the user side of the base station, and the device includes: a first determining module, a second determining module, and an indicating module;

The first determining module is configured to determine whether the number of failed packet data aggregation protocol PDCP packet decryption reaches a preset threshold;

The second determining module is configured to determine whether the number of failed PDCP packet decompressions is reached. Preset threshold

The indication module is configured to: when the first determining module determines that the number of failed PDCP packet decryption reaches a preset threshold, instructs the base station side control plane to initiate intra-cell handover; and is configured to: when the second determining module determines that the PDCP packet decompression fails When the number of times reaches the preset threshold, the control plane is instructed to initiate intra-cell handover.
The apparatus according to claim 9, wherein the first determining module is configured to determine, after decrypting the PDCP message, whether the value of the fixed field in the decrypted PDCP message is correct, and if yes, determine the PDCP message decryption. Success; if not, it is determined that the PDCP message decryption failed.
The apparatus according to claim 9, wherein the PDCP packet decompression failure comprises: PDCP packet decompression execution failure and PDCP packet decompression context search failure.
The apparatus of claim 11 wherein the second determining module is configured to

Determining whether the value of the cyclic redundancy check CRC field in the decompressed message is incorrect after decompressing the packet compressed by the packet header, and if so, determining that the PDCP packet decompression execution fails; if the value of the CRC field is correct Determine the successful execution of the decompression of the PDCP packet.
The apparatus of claim 11 wherein said second determining module is configured to

Determining whether a context identifier CID exists in the packet compressed by the packet header;

When there is no CID in the packet compressed by the packet header, it is determined that the PDCP packet decompression context search fails. When the CID exists in the packet compressed by the packet header, it is determined that the PDCP packet decompression context is successfully searched.
The apparatus according to claim 9 or 10, wherein the first determining module is configured as

Initialize the number of decryption failure counters;

When the decryption of the PDCP packet fails, the counter value of the number of decryption failures is incremented by one; when the decryption of the PDCP packet is successful, the counter of the number of decryption failures is cleared;

When the decryption failure counter value reaches the preset threshold, it is determined that the number of PDCP packet decryption failures reaches a preset threshold, and the decryption failure counter is cleared.
The apparatus according to any one of claims 11 to 13, wherein the second judging module is configured as

Initializing the number of decompression failure counters; when the PDCP packet decompression fails, the decompression failure counter value is incremented by one; when the PDCP packet decompression is successful, the decompression failure counter is cleared;

When the decompression failure counter value reaches the preset threshold, it is determined that the number of PDCP packet decompression failures reaches a preset threshold, and the decompression failure counter is cleared.
The apparatus according to claim 9, wherein the indication module is configured to, when determining that the number of failed PDCP packet decryption reaches a preset threshold, instruct the base station side control plane to initiate an intra-cell handover according to the following manner:

Reconfiguring the PDCP entity in the base station, and instructing the terminal to reconfigure the PDCP entity in the terminal;

When it is determined that the number of failed PDCP packet deactivation attempts to reach a preset threshold, the indication module instructs the base station side control plane to initiate intra-cell handover according to the following manner:

The header compression entity in the base station is reset, instructing the terminal to reconfigure the header compression entity in the terminal.
A computer storage medium having stored therein computer executable instructions for performing at least one of the methods of claims 1-8.