CN101043714A - Method and system for realizing mobility management of user equipment - Google Patents

Abstract

The invention relates to a method and system for implementing mobility management of user equipment. The present invention mainly includes: when the user equipment has no user plane data, but there is an RRC (radio resource control) connection, the interaction with the network is reduced for the purpose of power saving, so that the serving base station does not know the user equipment in time Residing in other cells due to movement or cell reselection; in this case, when the user equipment sends an uplink message to make the target base station detect the existence of the user equipment, the target base station initiates information interaction with the serving base station switching process. The present invention can reduce the signaling interaction between the user equipment and the network under unnecessary conditions, which is beneficial to saving the power consumption of the user equipment; at the same time, the present invention can also perform corresponding uplink data transmission processing when the user equipment needs it. Therefore, the application of the present invention can not only save the electric energy of the user equipment, but also ensure the normal use of the user equipment.

Description

Method and system for implementing mobility management of user equipment

technical field

The present invention relates to the field of wireless communication technology, in particular to a technology for implementing mobility management of user equipment.

Background technique

In the current WCDMA (Wideband Code Division Multiple Access) system, when the user equipment (user equipment) in the connected state changes the cell or system where the user equipment is located, handover occurs. The purpose of handover is to deal with the over-area caused by movement in connection mode, so as to ensure the continuity of coverage.

In the WCDMA system, the handover includes hard handover, soft handover, same-frequency/different-frequency hard handover and inter-system handover.

In the WCDMA system, according to whether there is an RRC (Radio Resource Control) connection between the user equipment and the network, the user equipment is divided into a connected state and an idle state. The process of changing the current cell of the user equipment in the connected state is the handover process. The corresponding handover process may be initiated by the network side or by the user equipment. In the handover process flow, the handover decision is made by the source RNC (radio network controller) and the source RNC actively to initiate the switching process.

The corresponding handover processing flow in the prior art will be described below in conjunction with the accompanying drawings. As shown in FIG. 1 , the corresponding handover processing flow specifically includes:

Step 11: the user equipment measures the signal quality of neighboring cells, and reports the measurement report to the serving base station where the user equipment is currently located;

Step 12: The serving base station decides whether handover should occur according to the measurement report reported by the user equipment, if it thinks that handover should occur, then perform step 13, otherwise, do not perform handover processing;

Step 13: The current serving base station transmits the context of the user equipment to the target base station;

Step 14: After receiving the context of the user equipment, the target base station stores the context, and allocates related resources and identification information for the user equipment;

Step 15: The target base station sends a context confirmation message to the original serving base station (source base station) of the user equipment, and the context confirmation message carries the unique identifier assigned to the user equipment in the target base station.

Step 16: After obtaining the confirmation message that the target base station has successfully stored the context, the source base station sends a handover command to the user equipment, and carries a new identifier of the user equipment in the handover command;

Step 17: The user equipment applies a new identity, and sends a handover confirmation message to the target base station;

Step 18: After receiving the handover confirmation message, the target base station considers that the handover is successful, becomes the new serving base station of the user equipment, and sends a handover completion message to the original serving base station (source base station), so that the source base station releases resources in time.

From the above handover process, it can be seen that in the system, the user equipment in the connected state needs to frequently measure neighboring cells. Once certain conditions are met, the user equipment will actively report the measurement report to the current serving base station , after the current serving base station makes a handover decision, it transmits context information to the target base station, and when the target base station is ready for handover, it notifies the source base station, and the source base station initiates a handover process.

Therefore, in this handover process, the user equipment's frequent measurement activities and measurement report messages for neighboring cells will consume a large amount of power of the user equipment. Therefore, it is more important to save the use of power resources, but the above-mentioned mobility management process for the user equipment is not conducive to saving the power of the user equipment.

Contents of the invention

The purpose of the present invention is to provide a method and system for implementing mobility management of user equipment, thereby increasing the flexibility of the handover process and facilitating the selection of different handover processing methods according to different application scenarios in the network.

The purpose of the present invention is achieved through the following technical solutions:

The present invention provides a method for implementing mobility management of user equipment, including:

A. The user equipment that needs to perform the handover operation sends a message requesting to communicate with the target base station to the target base station, and the message carries the identification information of the serving base station of the user equipment;

B. After receiving the message, the target base station performs information exchange with the serving base station of the user equipment, and performs a handover operation.

The method also includes:

C. When the user equipment has no user plane data transmission, or the user equipment has a radio resource control RRC connection and no user plane data transmission, the user equipment reduces the signaling interaction with the network side and/or its own processing operations.

The step C further includes: executing the step A when the user equipment is about to send uplink data or uplink signaling.

In step B, the information exchange with the serving base station of the user equipment includes:

B1. The target base station sends a context request message to the serving base station to request context information, and the message carries the identity of the target base station;

B2. The serving base station returns a context request response message to the target base station according to the target base station identifier in the received request message, and the message carries context information corresponding to the user equipment.

The method also includes:

B3. After the target base station determines the context information of the user equipment, it sends signaling to the user equipment, and the signaling carries identification information assigned to the user equipment under the target base station;

B4. After receiving the command, the user equipment applies the sent identification information, and returns a signaling indicating the completion of the handover to the target base station.

In the present invention, before performing the step B1, it also includes:

After receiving the service request message, the target base station extracts the base station identifier in the message;

When it is determined that the base station identifier in the message is inconsistent with its own base station identifier, step B1 is executed.

The method also includes:

After the serving base station sends the context information of the user equipment to the target base station, it recovers the resources occupied by the user equipment after waiting for a predetermined time.

The method also includes:

The target base station notifies other entities in the network that store the context information of the user equipment to update the corresponding context information.

Described step B comprises:

After receiving the service request message, the target base station extracts the base station identifier in the message;

When the base station identifier in the message is consistent with its own base station identifier, the target base station sends signaling to the user equipment, and the signaling carries identification information assigned to the user equipment under the target base station;

After receiving the command, the user equipment applies the sent identification information, and returns a signaling indicating the completion of the handover to the target base station.

The present invention also provides a system for implementing mobility management of user equipment, including:

The access processing unit is set in the user equipment, and is used to actively send a message to the target base station when the user equipment that needs to perform a handover operation needs to communicate with the target base station, and the message carries the identity information of the serving base station of the user equipment;

The handover operation processing unit is arranged in the serving base station and the target base station, and is used for performing information exchange with the serving base station of the user equipment after the target base station receives the message sent by the access processing unit, and performs a handover operation.

The switching operation processing unit specifically includes:

The context information obtaining unit is arranged in the target base station, and is used to obtain the corresponding context information for the handover operation from the serving base station of the user equipment after receiving the service request message sent by the access processing unit;

The context information sending unit is set in the serving base station and is used to send the context information to the context information acquiring unit in the target base station.

The system also includes:

The judgment identification unit is set in the target base station, and is used to obtain the identity information of the serving base station sent by the access processing unit, and judge whether it is consistent with the identity information of the target base station. If it is consistent, trigger the handover instruction unit, otherwise, trigger the context information acquisition unit;

The handover instruction unit is configured to control the target base station to notify the user equipment to perform a handover operation under the trigger of the judging and identifying unit, or after the context information acquiring unit acquires the context information of the user equipment.

The context information acquisition unit specifically includes:

The context information request unit is configured to construct a context request message and send it to the user equipment after receiving the service request message sent by the access processing unit, and request to obtain corresponding context information;

The context information receiving unit is configured to receive a context request response message sent by the serving base station of the user equipment, and obtain corresponding context information from the response message.

The system also includes:

The judging unit is set in the user equipment, and is used to trigger when it is determined that the user has no user plane data within a predetermined time period, or when it is determined that the user equipment has a radio resource control connection and has no user plane data within a predetermined time period. A power-saving mode control unit; and/or, a power-saving mode control information receiving unit, configured to receive power-saving mode control information, and trigger the power-saving mode control unit according to the information;

The power-saving mode control unit is set in the user equipment, and is used to control the user equipment to reduce the information interaction with the network side under the trigger of the judging unit and/or the power-saving mode control information receiving unit, and to control when the user equipment needs to send uplink When receiving data or uplink signaling, the access processing unit is triggered.

The present invention also provides a user equipment for assisted mobility management, including:

The access processing unit is set in the user equipment, and is used to actively send a message to the target base station when the user equipment needs to communicate with the target base station, and the message carries the identity information of the user equipment serving base station;

The judging unit is set in the user equipment, and is used to trigger when it is determined that the user has no user plane data within a predetermined time period, or when it is determined that the user equipment has a radio resource control connection and has no user plane data within a predetermined time period. A power-saving mode control unit; and/or, a power-saving mode control information receiving unit, configured to receive power-saving mode control information, and trigger the power-saving mode control unit according to the information;

The power-saving mode control unit is set in the user equipment, and is used to control the user equipment to reduce the information interaction with the network side under the trigger of the judging unit and/or the power-saving mode control information receiving unit, and to control when the user equipment needs to send uplink When receiving data or uplink signaling, the access processing unit is triggered.

It can be seen from the above-mentioned technical solution provided by the present invention that the present invention increases the time interval between the user equipment performing measurement and reporting the measurement report during the moving process of the user equipment, so that the mobile user equipment can effectively solve the problem of frequent The large amount of power consumption caused by accurate measurement and reporting of measurement reports saves limited power resources in user equipment.

At the same time, the implementation of the present invention also increases the flexibility of the switching process, which facilitates the selection of different switching processing modes in the network according to different application scenarios.

Description of drawings

FIG. 1 is a schematic diagram of a processing flow for realizing user equipment mobility management in the prior art;

FIG. 2 is a schematic diagram of a specific implementation process for implementing user equipment mobility management in the present invention;

FIG. 3 is a schematic structural diagram of a specific implementation of the system of the present invention.

Detailed ways

In the present invention, when the user equipment needs to carry out business, the measurement frequency of the neighboring cell is reduced due to the need of power saving, so its serving base station does not know its mobility in time. When the user equipment camps in a new cell due to movement or cell reselection, if it needs to send uplink data or signaling, it will send a service request message or a forward access message to the base station of the current cell, thereby triggering the current cell The base station, that is, the target base station performs the corresponding handover operation process, so that the user equipment can smoothly access the network through the target base station to carry out services. The present invention increases the flexibility of the handover process, and facilitates the selection of different handover operations in the network according to different application scenarios. processing method.

In the application process of the present invention, in order to save the power consumption of the user equipment during the moving process, the processing method that can be adopted is: when there is no data in the user plane, but there is still a connection in the control plane (that is, there is an RRC connection), then for saving The consideration of user equipment power can reduce the operation and processing of user equipment, such as reducing the measurement of the signal quality of neighboring cells; and reduce the signaling interaction between user equipment and the network, such as reducing the reporting operation of measurement reports, etc., by reducing The operation with the network side achieves the purpose of power saving. When the user equipment has uplink data to be transmitted, it notifies the target base station, and the target base station actively initiates a context request to implement a corresponding handover process, thereby implementing subsequent services.

The method of the present invention includes the following processing procedures in the specific implementation process:

(1) When the user equipment with RRC connection determines that there is no user plane data within the predetermined time, or because it receives a request from the network, the user equipment will switch to the power saving mode, and at this time the user equipment will reduce the number of calls to neighboring cells. measurement operations to save power in user equipment;

(2) The reduction in measurement frequency makes it impossible for the serving base station to know the mobility of the user equipment in a timely manner. When the user equipment moves to other cells and needs to send uplink data or other uplink messages, the base station of the cell where the user equipment is currently located (referred to as the target base station) detects the existence of the user equipment, that is, it knows that the user equipment needs to access the network, and the target base station can learn that the user equipment needs to access the network according to the message sent by the user equipment, such as a service request message or other notification messages ;

(3) After receiving the service request message or other notification messages, the target base station confirms that it needs to initiate a handover process. For this purpose, the target base station needs to request the context information of the user equipment from the serving base station, and the information includes resource configuration Information, etc., so that the user equipment after switching can still ensure the consistency of services;

(4) The serving base station sends the context information of the user equipment to the target base station, and then the target base station receives and acquires the corresponding context information, and can perform subsequent corresponding handover operations.

Through the above processing process, the object of the present invention can be realized, the electric energy of the user equipment is saved, and the reliable transmission of the uplink data of the user equipment is ensured.

In order to facilitate the understanding of the present invention, the specific implementation of the present invention will be described in detail below in conjunction with the accompanying drawings.

As shown in Figure 2, the present invention mainly comprises following process in the specific implementation process:

Step 21: the user equipment enters the power saving mode;

For user equipment with RRC (Radio Resource Control) connection, when there is no user plane data within several DRX (non-connection continuation characteristics), in order to save the power of the user equipment, it enters a power saving mode in an active state mode, the sleep state;

The user equipment in the power saving mode will minimize the signaling interaction with the network side, and reduce the interaction with the network, such as increasing the measurement gap for neighboring cells, etc.;

That is to say, the user equipment in the power-saving mode will also perform cell reselection or camp on other cells due to geographical location movement, but due to the lack of timely measurement and measurement report reporting, the user equipment's service The base station did not initiate the corresponding handover process in time;

Step 22: When the user equipment in the power-saving state needs to transmit uplink data, or when there are other uplink signaling needs to be transmitted, send a message to the base station where the new cell is located, and the message carries the original serving base station where the user equipment is located ( The identification information of the source base station) and the identification information of the cell where the user equipment was originally located;

Step 23: The target base station detects the existence of the user equipment, and judges whether the identification information of the serving base station of the user equipment carried in the message sent by the user equipment is consistent with its own identification information, and then determines whether a context request needs to be initiated;

Described step 23 comprises the following steps in concrete realization process:

First, after receiving the message from the user equipment, the target base station finds that the user equipment is in an activated state, and then parses out the identification information of the current serving base station of the user equipment according to the identification information of the serving base station carried by the user equipment in the message;

Afterwards, the target base station judges whether the current serving base station of the user equipment is the target base station according to the identifier of the serving base station, and if it is found that the current serving base station of the user equipment is not itself, then perform step 24, and make a handover decision according to the resources and load conditions of the target base station , if it is found that the current serving base station of the user equipment is itself, but the cell where the user equipment is located has changed, then directly execute step 27, that is, the intermediate process of obtaining the context information of the user equipment is omitted;

According to the judgment result, if it is determined that the target base station can be accessed, a new identity under the target base station is assigned to the user equipment, and a context request message is sent to the source base station to request to obtain corresponding context information, so that the user equipment can switch to Perform reasonable resource allocation and other processing after the target cell to ensure the consistency of user equipment services;

It should be noted that the context request message sent by the target base station to the source base station needs to carry the identity of the target base station, so that the serving base station can accurately send the corresponding context information to the target base station after receiving the context request message base station;

Step 24: The serving base station transmits the context of the user equipment to the target base station according to the identity of the target base station in the context request message;

After the above process, the target base station obtains the information of the serving base station, so that the subsequent handover process can be continued. Specifically, the process provided by the prior art can be used, or a corresponding handover process different from the settings of the prior art can be adopted;

The specific follow-up switching process is as follows:

Step 25: After the serving base station sends the context information corresponding to the user equipment to the target base station, the resources related to the user equipment are recovered after a predetermined time, and the predetermined time needs to meet the requirements between the target base station and the user equipment. The time required to complete the relevant processes of resource establishment;

This step can be executed after confirming that the target base station has received the context information. If the target base station has not received the context information, the serving base station can resend the context information under predetermined retransmission conditions. To ensure that the target base station obtains the context information of the user equipment;

Step 26: The target base station saves the context information after receiving the context information;

Step 27: After the target base station receives the context of the user equipment, it allocates new identification information for the user equipment under the target base station; or, if the target base station determines that it is the original serving base station of the user equipment, it only modifies the information about the user equipment in the context Information about the location of the community;

After the target base station determines the available context information of the user equipment, it initiates signaling for instructing the user equipment to perform handover, so that the user equipment is associated with the target base station, and the connection between the target base station and the user equipment is established. The identification information assigned to the user equipment under the new base station is carried to the user equipment.

Step 28: After the user equipment receives the signaling, if it includes new identification information, apply the new user equipment identification, and send an operation completion message to the target base station, that is, a message indicating the completion of the handover process, and then The target base station becomes the new serving base station of the user equipment or the target cell under the same base station becomes the new cell of the user equipment;

Step 29: The target base station initiates to update the context information in other entities in the network that store the context information of the user equipment;

That is, the target base station needs to send a request to the gateway to update the relevant context of the user equipment in the MME (Mobility Management Entity)/UPE (User Plane Entity), such as user identification information and location information.

The present invention also provides a system for implementing mobility management of user equipment. The specific implementation of the system is shown in Figure 3, including the following processing units:

(1) judging unit and/or power saving mode control information receiving unit

The judging unit is set in the user equipment, that is, in the user equipment, and is used to determine that the user equipment has no user plane data within a predetermined time period, or determine that the user equipment has a radio resource control connection and has no user plane data within a predetermined time period , the power saving mode control unit is triggered;

The power-saving mode control information receiving unit is set in the user equipment, and is used to receive the power-saving mode control information from the network, and trigger the power-saving mode control unit according to the information;

The judging unit and the power-saving mode control information receiving unit may be set in the user equipment at the same time, or only one of them may be set in the user equipment;

(2) Power saving mode control unit

The unit is set in the user equipment, and is used to control the user equipment to reduce the information interaction with the network side under the trigger of the judging unit and/or the power saving mode control information receiving unit, and to control when the user equipment needs to send uplink data or uplink information. When the command is activated, the access processing unit is triggered;

(3) Access processing unit

It is set in the user equipment, and is used for constructing a message including the identity information of the serving base station of the user equipment under the trigger of the judging unit, and sending it to the base station where the user equipment currently resides, that is, the target base station.

(4) Switch operation processing unit

This unit is set in the serving base station and the target base station, and is used to exchange information with the serving base station and perform handover operations after the serving base station receives the message sent by the access processing unit. The unit specifically includes setting in the target base station The context information acquiring unit and the context information sending unit arranged in the serving base station;

The context information obtaining unit is set in the target base station, and is used to obtain corresponding context information from the serving base station of the user equipment after receiving the message sent by the access processing unit;

Specifically, the unit includes:

The context information request unit is configured to construct a context request message and send it to the user equipment after receiving a message from the access processing unit, requesting to obtain corresponding context information;

The context information receiving unit is configured to receive a context request response message sent by the serving base station of the user equipment, and obtain corresponding context information from the response message.

The context information sending unit is set in the serving base station, and is used to send the context information corresponding to the user equipment stored in the serving base station to the target base station, for example, when receiving the context information request message sent by the context information requesting unit , the corresponding context information is sent to the target base station through a context request response message.

(5) Judgment and identification unit

This unit is set in the target base station, and is used to obtain the identity information of the serving base station sent by the access processing unit, and judge whether it is consistent with the identity information of the target base station. If it is consistent, trigger the handover instruction unit, otherwise, trigger context information acquisition unit;

(6) Switch indicating unit

The unit is configured to control the target base station to notify the user equipment to perform a handover operation under the trigger of the judging and identifying unit, or after the context information acquiring unit acquires the context information of the user equipment.

It can be seen from the above implementation description for the system that in the present invention, corresponding improvements are made respectively for the user equipment and the base station, and corresponding processing units are added therein, so as to achieve the purpose of the present invention.

The purpose of the present invention is to solve the problem that the serving base station cannot know the mobility of the user equipment in a timely manner due to the need for power saving of the user equipment and the reduction of measurement frequency. When the user equipment moves to another cell and needs to send uplink data or other uplink messages, the base station in the cell where the user equipment is currently located detects the existence of the user equipment and learns that the user equipment needs to access the network, so the target base station actively initiates Switch processing flow.

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed in the present invention can easily think of changes or Replacement should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims.

Claims (15)

1. A method for implementing mobility management of user equipment, comprising: A. The user equipment that needs to perform the handover operation sends a message requesting to communicate with the target base station to the target base station, and the message carries the identification information of the serving base station of the user equipment; B. After receiving the message, the target base station performs information exchange with the serving base station of the user equipment, and performs a handover operation. 2. The method according to claim 1, further comprising: C. When the user equipment has no user plane data transmission, or the user equipment has a radio resource control RRC connection and no user plane data transmission, the user equipment reduces the signaling interaction with the network side and/or its own processing operations. 3. The method according to claim 2, wherein said step C further comprises: When the user equipment intends to send uplink data or uplink signaling, the above step A is performed. 4. The method according to claim 1, 2 or 3, characterized in that, in the step B, the information exchange with the serving base station of the user equipment includes: B1. The target base station sends a context request message to the serving base station to request context information, and the message carries the identity of the target base station; B2. The serving base station returns a context request response message to the target base station according to the target base station identifier in the received request message, and the message carries context information corresponding to the user equipment. 5. The method according to claim 4, further comprising: B3. After the target base station determines the context information of the user equipment, it sends signaling to the user equipment, and the signaling carries identification information assigned to the user equipment under the target base station; B4. After receiving the command, the user equipment applies the sent identification information, and returns a signaling indicating the completion of the handover to the target base station. 6. The method according to claim 4, further comprising: before performing the step B1: After receiving the service request message, the target base station extracts the base station identifier in the message; When it is determined that the base station identifier in the message is inconsistent with its own base station identifier, step B1 is performed. 7. The method according to claim 4, further comprising: After the serving base station sends the context information of the user equipment to the target base station, it recovers the resources occupied by the user equipment after waiting for a predetermined time. 8. The method according to claim 4, further comprising: The target base station notifies other entities in the network that store the context information of the user equipment to update the corresponding context information. 9. The method according to claim 1, 2 or 3, characterized in that said step B comprises: After receiving the service request message, the target base station extracts the base station identifier in the message; When the base station identifier in the message is consistent with its own base station identifier, the target base station sends signaling to the user equipment, and the signaling carries identification information assigned to the user equipment under the target base station; After receiving the command, the user equipment applies the sent identification information, and returns a signaling indicating the completion of the handover to the target base station. 10. A system for implementing mobility management of user equipment, characterized by comprising: The access processing unit is set in the user equipment, and is used to actively send a message to the target base station when the user equipment that needs to perform a handover operation needs to communicate with the target base station, and the message carries the identity information of the serving base station of the user equipment; The handover operation processing unit is arranged in the serving base station and the target base station, and is used for performing information exchange with the serving base station of the user equipment after the target base station receives the message sent by the access processing unit, and performs a handover operation. 11. The system according to claim 10, wherein the switching operation processing unit specifically includes: The context information obtaining unit is arranged in the target base station, and is used to obtain the corresponding context information for the handover operation from the serving base station of the user equipment after receiving the service request message sent by the access processing unit; The context information sending unit is set in the serving base station and is used to send the context information to the context information acquiring unit in the target base station. 12. The system according to claim 11, further comprising: The judgment identification unit is set in the target base station, and is used to obtain the identity information of the serving base station sent by the access processing unit, and judge whether it is consistent with the identity information of the target base station. information acquisition unit; The handover instructing unit is configured to control the target base station to notify the user equipment to perform a handover operation under the trigger of the judging and identifying unit, or after the context information acquiring unit acquires the context information of the user equipment. 13. The system according to claim 11, wherein the context information acquiring unit specifically comprises: The context information request unit is configured to construct a context request message and send it to the user equipment after receiving the service request message sent by the access processing unit, and request to obtain corresponding context information; The context information receiving unit is configured to receive a context request response message sent by the serving base station of the user equipment, and obtain corresponding context information from the response message. 14. The system according to claim 10, 11, 12 or 13, further comprising: The judging unit is set in the user equipment, and is used to trigger when it is determined that the user has no user plane data within a predetermined time period, or when it is determined that the user equipment has a radio resource control connection and has no user plane data within a predetermined time period. A power saving mode control unit; and/or, a power saving mode control information receiving unit, configured to receive power saving mode control information, and trigger the power saving mode control unit according to the information; The power-saving mode control unit is set in the user equipment, and is used to control the user equipment to reduce the information interaction with the network side under the trigger of the judging unit and/or the power-saving mode control information receiving unit, and to control when the user equipment needs to send uplink When receiving data or uplink signaling, the access processing unit is triggered. 15. A user equipment for assisted mobility management, comprising: The access processing unit is set in the user equipment, and is used to actively send a message to the target base station when the user equipment needs to communicate with the target base station, and the message carries the identity information of the user equipment serving base station; The judging unit is set in the user equipment, and is used to trigger when it is determined that the user has no user plane data within a predetermined time period, or when it is determined that the user equipment has a radio resource control connection and has no user plane data within a predetermined time period. A power-saving mode control unit; and/or, a power-saving mode control information receiving unit, configured to receive power-saving mode control information, and trigger the power-saving mode control unit according to the information; The power-saving mode control unit is set in the user equipment, and is used to control the user equipment to reduce information interaction with the network side under the trigger of the judging unit and/or the power-saving mode control information receiving unit, and to control when the user equipment needs to send uplink When receiving data or uplink signaling, the access processing unit is triggered.

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