CN109818724A - Obtain and send method, the terminal, base station, readable medium of system message - Google Patents

Abstract

A method, terminal, base station, and readable medium for acquiring and sending system messages, the method for acquiring system messages includes: judging whether a system message block to be acquired is an on-demand type system message; When it is an on-demand type of system message, send RRC signaling to the first type of base station to request the system message block to be acquired, wherein the RRC signaling includes: the type of the system message block to be acquired, the system message to be acquired The block corresponds to the serving cell index, cell identifier or frequency information of the cell; the RRC signaling sent by the first type of base station is received, and the system message block to be acquired is acquired. By applying the above solution, when there is a service requirement, an on-demand type system message block of an SCell or a non-serving cell can be successfully acquired, thereby ensuring the normal initiation of the service.

Description

Method, terminal, base station, and readable medium for acquiring and sending system messages

technical field

Embodiments of the present invention relate to the field of communications, and in particular, to a method, terminal, base station, and readable medium for acquiring and sending system messages.

Background technique

In a New Radio (New Radio, NR) system, system information (System Information, SI) is divided into a minimum system information (Minimum SI, MSI) and other system information (Other SI, OSI). For the MSI and a part of the OSI, the base station sends it periodically through broadcast messages; for the other part of the OSI, it is an On Demand System Information (On Demand System Information), when the terminal (User Equipment, UE) needs to obtain it, it needs to send the request information to the base station to obtain . For the UE in the idle/inactive state, an MSG1/3 message is sent to request to acquire an on-demand type of system information block (System Information Block, SIB). For the UE in the connected state, a dedicated radio resource control (Radio Resource Control, RRC) signaling is sent to request to acquire the SIB of the on-demand type. After receiving the request sent by the UE, the base station sends the requested SIB to the UE.

When the base station adds a secondary cell (Secondary Cell, SCell) to the UE, the RRC signaling only configures the MIB and part of the OSI corresponding to the SCell, and does not configure all system messages, such as SIB13 related to the MBMS service.

In practical applications, for service requirements, the UE may need to obtain on-demand SIBs of SCells or non-serving cells (neighbor cells), and the on-demand SIBs may not be configured when adding SCells. For example, in order to perform multimedia broadcast and multicast (Multimedia Broadcast Multicast Service, MBMS) services on an SCell or a non-serving cell, the UE needs to obtain the SIB13 of the SCell or the non-serving cell, but the SIB13 will not be configured for the UE when adding an SCell. When the SIB13 of the SCell and the non-serving cell is an on-demand type of SIB, the UE can only send the SIB13 in the SCell or the non-serving cell (for example, other UEs camped on the cell trigger the cell to broadcast the SIB13) may receive. It is possible that the SCell or the non-serving cell does not send the SIB13 for a long period of time, and the UE cannot obtain the SIB13 within this period of time, so that the required service cannot be initiated, which affects the user experience.

SUMMARY OF THE INVENTION

The technical problem solved by the embodiments of the present invention is how to obtain the SIB of the SCell or the non-serving cell to ensure that the UE can normally initiate services.

In order to solve the above technical problem, an embodiment of the present invention provides a method for a terminal to acquire system messages, the method includes: judging whether the system message block to be acquired is an on-demand type system message; When the type of system message is required, send RRC signaling to the first type of base station to request the system message block to be acquired, wherein the RRC signaling includes: the type of the system message block to be acquired, the corresponding system message block to be acquired. Serving cell index, cell identifier or frequency information of the cell; receive the RRC signaling sent by the first type of base station, and acquire the system message block to be acquired.

Optionally, when the system message block to be acquired is an on-demand type system message and the signaling radio bearer 3 is configured, the method further includes: sending RRC signaling to the base station of the second type through the signaling radio bearer 3 to request the base station of the second type. The system message block to be acquired, wherein the RRC signaling includes: the type of the system message block to be acquired, the serving cell index, cell identifier or frequency information of the cell corresponding to the system message block to be acquired; receiving the second type of base station The sent RRC signaling obtains the system message block to be obtained.

Optionally, the judging whether the system message block to be acquired is an on-demand type system message includes: acquiring the minimum system message of the corresponding cell; and judging whether the system message block to be acquired is based on the indication information in the minimum system message. For on-demand type system messages.

Optionally, the acquiring the minimum system message of the corresponding cell includes: acquiring the minimum system message of the corresponding cell by receiving the minimum system message periodically broadcasted by the corresponding cell.

Optionally, the acquiring the minimum system message of the corresponding cell includes: acquiring the minimum system message of the corresponding cell from the RRC signaling corresponding to the addition of an SCell sent by the first type base station.

Optionally, the judging whether the system message block to be acquired is an on-demand type system message includes: based on the indication information in the RRC signaling corresponding to the addition of the SCell sent by the base station of the first type, judging the system message to be acquired. Whether the block is an on-demand type system message.

Optionally, the cell identifier includes: a physical cell ID or a CGI.

Optionally, the method further includes: acquiring the CGI from the minimum system message of the corresponding cell.

Optionally, the RRC signaling sent by the first type of base station includes: an indication bit, which is adapted to indicate whether the system message block to be acquired is successfully acquired, and when the indication bit indicates failure, the RRC signaling does not include The block of system messages to get.

An embodiment of the present invention provides a computer-readable storage medium on which computer instructions are stored, and when the computer instructions are executed, the steps of any one of the methods described above are executed.

An embodiment of the present invention provides a terminal, including a memory and a processor, where the memory stores computer instructions that can be run on the processor, and when the processor runs the computer instructions, executes any one of the above-mentioned instructions. steps of the method.

An embodiment of the present invention provides a method for a base station to send a system message, including: receiving an RRC signaling requesting a system message block sent by a UE, wherein the RRC signaling includes: the type of the system message block to be acquired, the system message block to be acquired The message block corresponds to the serving cell index, cell identifier or frequency information of the cell; obtains the requested system message block; sends the obtained requested system message block to the UE through RRC signaling.

Optionally, the acquiring the requested system message block includes: acquiring the requested system message block from another base station.

Optionally, the RRC signaling sent to the UE includes: an indication bit, which is adapted to indicate a failure to acquire the requested system message block when the requested system message block fails, and the RRC signaling does not contain the system message block to be acquired.

Optionally, the receiving the RRC signaling requesting the system message block sent by the UE includes: receiving the RRC signaling requesting the system message block sent by the UE based on the signaling radio bearer 3 .

An embodiment of the present invention provides a computer-readable storage medium on which computer instructions are stored, and when the computer instructions are executed, the steps of any one of the methods described above are executed.

An embodiment of the present invention provides a base station, including a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor executes any one of the above when running the computer instructions. steps of the method.

An embodiment of the present invention provides a terminal, including: a judging unit, adapted to judge whether a system message block to be acquired is an on-demand type system message; a first sending unit, adapted to when the system message block to be acquired is an on-demand type When the system message is received, the RRC signaling is sent to the first type base station to request the system message block to be acquired, wherein the RRC signaling includes: the type of the system message block to be acquired, the information of the cell corresponding to the system message block to be acquired. Serving cell index, cell identifier or frequency information; a first receiving unit, adapted to receive the RRC signaling sent by the first type of base station, and acquire the system message block to be acquired.

Optionally, when the system message block to be acquired is an on-demand type system message and the signaling radio bearer 3 is configured, the method further includes: a second sending unit, adapted to send the RRC signaling to the signaling radio bearer 3 through the signaling radio bearer 3. The second type of base station is to request the system message block to be acquired, wherein the RRC signaling includes: the type of the system message block to be acquired, the serving cell index of the cell corresponding to the system message block to be acquired, the cell identifier or the frequency information; The second receiving unit is adapted to receive the RRC signaling sent by the second type of base station, and acquire the system message block to be acquired.

Optionally, the judging unit includes: an obtaining subunit, adapted to obtain the minimum system message of the corresponding cell; On-demand type system messages.

Optionally, the obtaining subunit is adapted to obtain the minimum system message of the corresponding cell by receiving the minimum system message periodically broadcasted by the corresponding cell.

Optionally, the obtaining subunit is adapted to obtain the minimum system message of the corresponding cell from the RRC signaling corresponding to the addition of the SCell sent by the base station of the first type.

Optionally, the judging unit is adapted to judge whether the system message block to be acquired is an on-demand type system message based on the indication information in the RRC signaling corresponding to the addition of the SCell sent by the base station of the first type.

Optionally, the cell identifier includes: a physical cell ID or a CGI.

Optionally, the terminal further includes: a first obtaining unit, adapted to obtain the CGI from the minimum system message of the corresponding cell.

Optionally, the RRC signaling sent by the first type of base station includes: an indication bit, adapted to indicate whether the base station successfully acquires the system message block to be acquired, when the indication bit indicates failure, the RRC signaling Does not contain the system message block to be fetched.

An embodiment of the present invention provides a base station, including: a third receiving unit, adapted to receive RRC signaling requesting a system message block sent by a UE, wherein the RRC signaling includes: the type of the system message block to be acquired, the type of the system message block to be acquired, the The system message block corresponding to the serving cell index, cell identity or frequency information of the cell; the second obtaining unit, adapted to obtain the requested system message block; the third sending unit, adapted to send the obtained requested system message block through RRC signaling System message block to UE.

Optionally, the second obtaining unit is adapted to obtain the requested system message block from other base stations.

Optionally, the RRC signaling includes: an indication bit, which is adapted to indicate the acquisition failure when the second acquisition unit fails to acquire the requested system message block, and the RRC signaling does not contain the system message to be acquired piece.

Optionally, the third receiving unit is adapted to receive the RRC signaling requesting the system message block sent by the UE based on the signaling radio bearer 3 .

Compared with the prior art, the technical solutions of the embodiments of the present invention have the following beneficial effects:

In the embodiment of the present invention, by sending RRC signaling to the first type of base station, requesting the system message block of the on-demand type, and then receiving the RRC signaling sent by the first type of base station to obtain the system message block of the on-demand type, it can be used when there is a service requirement. When , the on-demand type SIB of the SCell or the non-serving cell is successfully obtained, thereby ensuring the normal initiation of the service.

Further, when the signaling radio bearer 3 is configured, the RRC signaling can be sent to the base station of the second type through the signaling radio bearer 3, and then the RRC signaling sent by the base station of the second type can be received to obtain the system message to be obtained. If there is a service requirement, the on-demand type SIB of the SCell or the non-serving cell can be successfully obtained, thereby ensuring the normal initiation of the service.

Further, through the indication bit, the UE can be notified in time that the requested system message block fails to be obtained, so that the UE can continue to obtain the requested system message block through other methods, reducing the passive waiting delay, thereby reducing the impact on the service.

In the embodiment of the present invention, by receiving the RRC signaling requesting the system message block sent by the UE, and then feeding back the obtained requested system message block to the UE through the RRC signaling, the UE can successfully obtain the SCell or non-SCell when there is a service requirement. The on-demand type of SIB of the serving cell, thereby ensuring the normal initiation of the service.

Description of drawings

1 is a flowchart of a method for a terminal to acquire system messages according to an embodiment of the present invention;

2 is a flowchart of a method for a base station to send a system message according to an embodiment of the present invention;

3 is a schematic structural diagram of a terminal provided by an embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a base station according to an embodiment of the present invention.

Detailed ways

In practical applications, for service requirements, the UE may need to obtain on-demand SIBs of SCells or non-serving cells (neighbor cells), and on-demand SIBs may not be configured when adding SCells. The UE can only receive the SIB when the SCell or non-serving cell may send the SIB of the on-demand type that needs to be obtained. If the SCell or the non-serving cell does not send the SIB of the on-demand type that it needs to obtain, the UE cannot obtain the SIB. As a result, the required services cannot be initiated, which affects the user experience.

In the embodiment of the present invention, by sending RRC signaling to the first type of base station, requesting the system message block of the on-demand type, and then receiving the RRC signaling sent by the first type of base station to obtain the system message block of the on-demand type, it can be used when there is a service requirement. When , the on-demand type SIB of the SCell or the non-serving cell is successfully obtained, thereby ensuring the normal initiation of the service.

In order to make the above objects, features and beneficial effects of the present invention more clearly understood, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

Referring to FIG. 1, an embodiment of the present invention provides a method for a terminal to obtain system messages, and the method may include the following steps:

Step S101, judging whether the system message block to be acquired is an on-demand type system message.

In the specific implementation, for the minimum system message and a part of other system messages, the base station sends the broadcast message periodically; for the on-demand type system message, the base station does not send it through the broadcast message period, but can only be obtained by the terminal sending the request information to the base station. Therefore, it is necessary to judge whether the system message block to be acquired is an on-demand type system message. In a specific implementation, the minimum system message of the cell corresponding to the system message block to be obtained can be obtained, and then based on the indication information in the minimum system message, it can be judged whether the system message block to be obtained is an on-demand type system message; The first type of base station adds the indication information in the RRC signaling corresponding to the SCell to determine whether the system message block to be acquired is an on-demand type system message.

In a specific implementation, the minimum system message of the corresponding cell can be obtained by receiving the minimum system message periodically broadcasted by the corresponding cell of the system message block to be obtained, or it can be obtained from the RRC signaling corresponding to the addition of the SCell sent by the base station of the first type. , and obtain the minimum system message of the corresponding cell.

In a specific implementation, for a dual connectivity scenario, the primary base station is the first type of base station, and the secondary base station is the second type of base station; for other scenarios other than dual connectivity, such as carrier aggregation scenarios, the serving base station is the first type of base station class base station.

In a specific implementation, the cell corresponding to the system message block to be acquired may be either an SCell or a non-serving cell. When the cell corresponding to the system message block to be acquired is an SCell, for a carrier aggregation scenario, the first type of base station is a serving base station; for a dual connectivity scenario, the first type of base station is a primary base station. When the system message block to be acquired corresponds to a non-serving cell, the first type of base station is a serving base station.

Step S102, when the system message block to be acquired is an on-demand type system message, send RRC signaling to the first type base station to request the system message block to be acquired, wherein the RRC signaling includes: the system message to be acquired The type of the message block, the serving cell index, the cell identifier or the frequency information of the cell corresponding to the system message block to be acquired.

In a specific implementation, for a carrier aggregation scenario, when a service needs to be initiated on the SCell to obtain the system message of the SCell, and the system message block to be obtained is an on-demand type system message, a dedicated RRC signaling can be sent to the first One type of base station, the serving base station, requests the system message block to be acquired. In order to enable the base station to correctly transmit the system message to be acquired, the RRC signaling at least needs to include: the type of the system message block to be acquired and the serving cell index of the SCell corresponding to the system message block to be acquired, wherein the system message block to be acquired The block type is used to indicate the content of the system message block to be acquired by the base station, for example, SIB13; the serving cell index of the corresponding cell is used to indicate which cell's system message block the base station acquires.

In a specific implementation, for a dual connectivity scenario, such as a Long Term Evolution (LTE) and NR dual connectivity scenario, the LTE base station is the primary base station and the NR base station is the secondary base station. When the second type of base station, that is, the SCell of the secondary base station, needs to initiate a service to obtain the system message of the SCell, and the system message block to be obtained is an on-demand type system message, a dedicated RRC signaling can be sent to the The first type of base station, that is, the master base station, requests the system message block to be acquired. In order for the base station to correctly transmit the system message to be acquired, the RRC signaling at least needs to include: the type of the system message block to be acquired and the serving cell index, cell identifier or frequency information of the SCell corresponding to the system message block to be acquired. After receiving the RRC signaling, the base station of the first type interacts with the secondary base station to obtain the requested system message block.

In a specific implementation, for a scenario where dual connectivity is configured and Signal Radio Bearer 3 (SRB3) is configured, when it is necessary to initiate a service on the SCell of the second type of base station, that is, the SCell of the secondary base station, a system for acquiring the SCell message, and the system message block to be acquired is an on-demand type system message, the RRC signaling can be sent directly to the second type of base station, that is, the secondary base station, through the signaling radio bearer 3 to request the system message block to be acquired. , wherein the RRC signaling includes: the type of the system message block to be acquired, the serving cell index, cell identity or frequency information of the cell corresponding to the system message block to be acquired.

In a specific implementation, when a service needs to be initiated in a non-serving cell to acquire system messages of the non-serving cell, and the system message block to be acquired is an on-demand type system message, dedicated RRC signaling can be sent to the first The class base station, that is, the serving base station, requests the system message block to be acquired. In order for the base station to correctly transmit the system message to be acquired, the RRC signaling needs to at least include: the type of the system message block to be acquired and the cell identifier of the cell corresponding to the system message block to be acquired. After receiving the RRC signaling, the base station of the first type interacts with the base station of the corresponding cell to obtain the requested system message block.

In an embodiment of the present invention, the cell identifier may be a physical cell ID or a global cell identifier (Cell Global Identifier, CGI).

In a specific implementation, the CGI can be obtained from the minimum system message of the cell. The minimum system message of the cell can be obtained by the method described in step S101, which is not repeated here.

Step S103: Receive the RRC signaling sent by the base station of the first type, and acquire the system message block to be acquired.

In a specific implementation, the first type of base station may not be able to interact with the base station of the corresponding cell. For example, the corresponding base stations cannot communicate without an X2 interface, and obtain the requested system message block. In this case, the The RRC signaling sent by the first type of base station may include: an indication bit, adapted to indicate whether the system message block to be acquired is successfully acquired, and when the indication bit indicates failure, the RRC signaling does not contain the system message to be acquired. piece.

Through the indication bit, the failure to obtain the requested system message block can be notified in time, so that the terminal can continue to obtain the requested system message block through other methods, reducing the passive waiting time delay, thereby reducing the impact on the service.

In a specific implementation, for a scenario of dual connectivity and SRB3 is configured, when a service needs to be initiated on the SCell of the second type of base station, the system message of the SCell is obtained, and the system message block to be obtained is an on-demand type system message , the RRC signaling can be directly sent to the second type of base station through the signaling radio bearer 3, where the RRC signaling includes: the type of the system message block to be acquired, the serving cell of the cell corresponding to the system message block to be acquired index, cell identifier or frequency information to request the system message block to be acquired, so the RRC signaling sent by the second type of base station can also be received to acquire the system message block to be acquired.

Applying the above scheme, by sending RRC signaling to the first type of base station, requesting the system message block of the on-demand type, and then receiving the RRC signaling sent by the first type of base station to obtain the system message block of the on-demand type, it can be used when there is a service requirement. When , the on-demand type SIB of the SCell or the non-serving cell is successfully obtained, thereby ensuring the normal initiation of the service.

To enable those skilled in the art to better understand and implement the present invention, an embodiment of the present invention further provides a method for a base station to send a system message, as shown in FIG. 2 .

Referring to FIG. 2, the method for the base station to send a system message may include the following steps:

Step S201, receiving the RRC signaling requesting a system message block sent by the UE, wherein the RRC signaling includes: the type of the system message block to be acquired, the serving cell index of the cell corresponding to the system message block to be acquired, the cell identifier or the frequency information.

In a specific implementation, for the second type of base station, that is, the secondary base station, the RRC signaling requesting the system message block sent by the UE based on the signaling radio bearer 3 may be received.

Step S202, acquiring the requested system message block.

In a specific implementation, for the base station of the first type, that is, the serving base station or the master base station, the system message block to be requested may be obtained from other base stations.

In an embodiment of the present invention, for an SCell whose corresponding cell is a secondary base station in a dual-connectivity scenario, after receiving the RRC signaling requesting a system message block sent by the UE, it can interact with the secondary base station and obtain the pending request from the secondary base station. system message block.

In an embodiment of the present invention, if the corresponding cell is a non-serving cell, after receiving the RRC signaling requesting the system message block sent by the UE, it can interact with the base station corresponding to the cell to obtain the system message block to be requested .

Step S203, sending the acquired requested system message block to the UE through RRC signaling.

In a specific implementation, for the first type of base stations, it is possible that there is no X2 interface between the base stations, and communication between the base stations cannot be performed, resulting in a failure to acquire the requested system message block. In this case, the sent RRC signaling may include an indication bit, which is adapted to indicate the acquisition failure when acquiring the requested system message block fails, and the RRC signaling does not contain the system message block to be acquired. Through the indication bit, the UE can be notified in time of the failure to obtain the requested system message block, so that the UE can continue to obtain the requested system message block through other methods, thereby reducing the passive waiting delay, thereby reducing the impact on services.

Applying the above solution, by receiving the RRC signaling requesting the system message block sent by the UE, and then feeding back the obtained requested system message block to the UE through the RRC signaling, the UE can successfully obtain the SCell or non-SCell when there is a service requirement. The on-demand type of SIB of the serving cell, thereby ensuring the normal initiation of the service.

To enable those skilled in the art to better understand and implement the present invention, an embodiment of the present invention further provides a terminal capable of implementing the above method for a terminal to acquire system messages, as shown in FIG. 3 .

Referring to FIG. 3, the terminal 30 includes: a judgment unit 31, a first sending unit 32 and a first receiving unit 33, wherein:

The judging unit 31 is adapted to judge whether the system message block to be acquired is an on-demand type system message.

The first sending unit 32 is adapted to send RRC signaling to the base station of the first type to request the system message block to be acquired when the system message block to be acquired is an on-demand type system message, wherein the RRC signaling The command includes: the type of the system message block to be acquired, the serving cell index of the cell corresponding to the system message block to be acquired, the cell identifier or the frequency information.

The first receiving unit 33 is adapted to receive the RRC signaling sent by the base station of the first type, and acquire the system message block to be acquired.

In a specific implementation, when the system message block to be acquired is an on-demand type system message and the signaling radio bearer 3 is configured, the terminal 30 further includes: a second sending unit (not shown) and a second receiving unit unit (not shown), where:

The second sending unit is adapted to send RRC signaling to the second type of base station through the signaling radio bearer 3 to request the system message block to be acquired, wherein the RRC signaling includes: the type of the system message block to be acquired , the serving cell index, cell identifier or frequency information of the cell corresponding to the system message block to be acquired.

The second receiving unit is adapted to receive the RRC signaling sent by the base station of the second type, and acquire the system message block to be acquired.

In an embodiment of the present invention, the judging unit 31 includes: an obtaining sub-unit 311 and a judging sub-unit 312, wherein:

The obtaining subunit 311 is adapted to obtain the minimum system message of the corresponding cell.

The judging subunit 312 is adapted to judge whether the system message block to be acquired is an on-demand type system message based on the indication information in the minimum system message.

In a specific implementation, the obtaining subunit 311 is adapted to obtain the minimum system message of the corresponding cell by receiving the minimum system message periodically broadcasted by the corresponding cell.

In a specific implementation, the obtaining subunit 311 is adapted to obtain the minimum system message of the corresponding cell from the RRC signaling corresponding to the addition of the SCell sent by the base station of the first type.

In a specific implementation, the judging unit 31 is adapted to judge whether the system message block to be acquired is an on-demand type system message based on the indication information in the RRC signaling corresponding to the addition of the SCell sent by the base station of the first type.

In an embodiment of the present invention, the cell identifier includes: a physical cell ID or a CGI.

In a specific implementation, the terminal 30 further includes: a first obtaining unit (not shown), adapted to obtain the CGI from the minimum system message of the corresponding cell.

In an embodiment of the present invention, the RRC signaling sent by the first type of base station includes: an indication bit, which is adapted to indicate whether the base station successfully acquires the system message block to be acquired, and when the indication bit indicates failure, the The system message block to be acquired is not included in the RRC signaling.

In specific implementation, for the work flow and principle of the terminal 30, reference may be made to the description in the method for acquiring system information provided in the foregoing embodiment, which is not repeated here.

An embodiment of the present invention provides a computer-readable storage medium on which computer instructions are stored, and when the computer instructions are executed, the steps corresponding to any of the foregoing methods for acquiring system messages are executed, which will not be repeated here.

An embodiment of the present invention provides a terminal, including a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor executes any one of the foregoing acquisition systems when running the computer instructions The steps corresponding to the message method are not repeated here.

To enable those skilled in the art to better understand and implement the present invention, an embodiment of the present invention further provides a base station capable of implementing the above method for sending a system message, as shown in FIG. 4 .

Referring to FIG. 4 , the base station 40 includes: a third receiving unit 41, a second obtaining unit 42 and a third sending unit 43, wherein:

The third receiving unit 41 is adapted to receive an RRC signaling requesting a system message block sent by the UE, wherein the RRC signaling includes: the type of the system message block to be acquired, and the service of the cell corresponding to the system message block to be acquired. Cell index, cell identity or frequency information.

The second obtaining unit 42 is adapted to obtain the requested system message block.

The third sending unit 43 is adapted to send the obtained requested system message block to the UE through RRC signaling.

In an embodiment of the present invention, the second obtaining unit 42 is adapted to obtain the requested system message block from other base stations.

In a specific implementation, the RRC signaling includes: an indication bit, which is adapted to indicate that the acquisition fails when the second acquisition unit 42 fails to acquire the requested system message block, and the RRC signaling does not contain the information to be acquired. System message block.

In a specific implementation, the third receiving unit 41 is adapted to receive the RRC signaling requesting a system message block sent by the UE based on the signaling radio bearer 3, wherein the RRC signaling includes: the type of the system message block to be acquired , the serving cell index, cell identifier or frequency information of the cell corresponding to the system message block to be acquired.

In specific implementation, reference may be made to the description in the method for sending a system message provided in the foregoing embodiment for the working process and principle of the base station 40 , which will not be repeated here.

An embodiment of the present invention provides a computer-readable storage medium, on which computer instructions are stored, and when the computer instructions are executed, the steps corresponding to any of the foregoing methods for sending a system message are executed, which will not be repeated here.

An embodiment of the present invention provides a base station, including a memory and a processor, the memory stores computer instructions that can run on the processor, and the processor executes any one of the foregoing sending systems when running the computer instructions The steps corresponding to the message method are not repeated here.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above embodiments can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, and the storage medium can include: ROM, RAM, magnetic disk or optical disk, etc.

Although the present invention is disclosed above, the present invention is not limited thereto. Any person skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention. Therefore, the protection scope of the present invention should be based on the scope defined by the claims.

Claims (30)

1. a method for obtaining a system message by a terminal, comprising: Determine whether the system message block to be acquired is an on-demand type system message; When the system message block to be acquired is an on-demand type system message, the RRC signaling is sent to the first type base station to request the system message block to be acquired, wherein the RRC signaling includes: Type, the serving cell index, cell identifier or frequency information of the cell corresponding to the system message block to be acquired; Receive the RRC signaling sent by the base station of the first type, and acquire the system message block to be acquired. 2. The method for obtaining a system message by a terminal according to claim 1, wherein when the system message block to be obtained is an on-demand type system message and a signaling radio bearer 3 is configured, the method further comprises: Send RRC signaling to the second type of base station through signaling radio bearer 3 to request the system message block to be acquired, wherein the RRC signaling includes: the type of the system message block to be acquired, the cell corresponding to the system message block to be acquired Serving cell index, cell identity or frequency information; Receive the RRC signaling sent by the base station of the second type, and acquire the system message block to be acquired. 3. The method for obtaining a system message by a terminal according to claim 1 or 2, wherein the judging whether the system message block to be obtained is an on-demand type system message comprises: obtaining the minimum system message of the corresponding cell; Based on the indication information in the minimum system message, it is determined whether the system message block to be acquired is an on-demand type system message. 4. The method for obtaining a system message by a terminal according to claim 3, wherein the obtaining the minimum system message of the corresponding cell comprises: Obtain the minimum system message of the corresponding cell by receiving the minimum system message periodically broadcasted by the corresponding cell. 5. The method for obtaining a system message by a terminal according to claim 3, wherein the obtaining the minimum system message of the corresponding cell comprises: The minimum system message of the corresponding cell is acquired from the RRC signaling corresponding to the addition of the SCell sent by the base station of the first type. 6. The method for obtaining a system message by a terminal according to claim 1 or 2, wherein the judging whether the system message block to be obtained is an on-demand type system message comprises: Based on the indication information in the RRC signaling corresponding to the addition of the SCell sent by the base station of the first type, it is determined whether the system message block to be acquired is an on-demand type system message. 7 . The method for a terminal to acquire a system message according to claim 1 , wherein the cell identifier comprises: a physical cell ID or a CGI. 8 . 8. The method for obtaining a system message by a terminal according to claim 7, further comprising: The CGI is obtained from the minimum system message of the corresponding cell. 9 . The method for a terminal to acquire a system message according to claim 1 , wherein the RRC signaling sent by the first type of base station comprises: an indication bit, which is adapted to indicate whether the system message block to be acquired is successfully acquired, when the When the indication bit indicates failure, the RRC signaling does not include the system message block to be acquired. 10. A method for a base station to send a system message, comprising: Receive the RRC signaling requesting a system message block sent by the UE, wherein the RRC signaling includes: The type of the system message block to be acquired, the serving cell index, cell identifier or frequency information of the cell corresponding to the system message block to be acquired; Get the requested system message block; The acquired requested system message block is sent to the UE through RRC signaling. The method for sending a system message by a base station according to claim 10, wherein the acquiring the requested system message block comprises: acquiring the requested system message block from another base station. 12. The method for sending a system message by a base station according to claim 11, wherein the RRC signaling sent to the UE comprises: an indication bit, which is adapted to indicate that the acquisition fails when acquiring the requested system message block fails. The RRC signaling does not include the system message block to be acquired. 13. The method for sending a system message by a base station according to claim 10, wherein the receiving the RRC signaling requesting a system message block sent by the UE comprises: receiving a requesting system message block sent by the UE based on signaling radio bearer 3 RRC signaling. 14. A terminal, characterized in that, comprising: a judgment unit, adapted to judge whether the system message block to be acquired is an on-demand type system message; The first sending unit is adapted to send RRC signaling to the first type base station to request the system message block to be acquired when the system message block to be acquired is an on-demand type system message, wherein the RRC signaling includes: The type of the system message block to be acquired, the serving cell index, cell identifier or frequency information of the cell corresponding to the system message block to be acquired; The first receiving unit is adapted to receive the RRC signaling sent by the base station of the first type, and acquire the system message block to be acquired. 15. The terminal according to claim 14, wherein when the system message block to be acquired is an on-demand type system message and a signaling radio bearer 3 is configured, the method further comprises: The second sending unit is adapted to send RRC signaling to the base station of the second type through the signaling radio bearer 3 to request the system message block to be acquired, wherein the RRC signaling includes: the type of the system message block to be acquired, the type of the system message block to be acquired, the The obtained system message block corresponds to the serving cell index, cell identifier or frequency information of the cell; The second receiving unit is adapted to receive the RRC signaling sent by the second type of base station, and acquire the system message block to be acquired. 16. The terminal according to claim 14 or 15, wherein the judging unit comprises: an acquisition subunit, adapted to acquire the minimum system message of the corresponding cell; The judging subunit is adapted to judge whether the system message block to be acquired is an on-demand type system message based on the indication information in the minimum system message. The terminal according to claim 16, wherein the obtaining subunit is adapted to obtain the minimum system message of the corresponding cell by receiving the minimum system message periodically broadcasted by the corresponding cell. 18 . The terminal according to claim 16 , wherein the obtaining subunit is adapted to obtain the minimum system message of the corresponding cell from the RRC signaling corresponding to the added SCell sent by the first type base station. 19 . . 19. The terminal according to claim 14 or 15, wherein the judgment unit is adapted to judge the system to be acquired based on the indication information in the RRC signaling corresponding to the added SCell sent by the first type base station Whether the message block is an on-demand type system message. 20. The terminal according to claim 14, wherein the cell identifier comprises: a physical cell ID or a CGI. 21. The terminal according to claim 20, further comprising: The first obtaining unit is adapted to obtain the CGI from the minimum system message of the corresponding cell. 22. The terminal according to claim 14, wherein the RRC signaling sent by the first type of base station comprises: an indication bit, adapted to indicate whether the base station successfully acquires the system message block to be acquired, when the indication When the bit indicates failure, the RRC signaling does not include the system message block to be acquired. 23. A base station, comprising: The third receiving unit is adapted to receive the RRC signaling requesting the system message block sent by the UE, wherein the RRC signaling includes: the type of the system message block to be acquired, the serving cell index of the cell corresponding to the system message block to be acquired, cell identification or frequency information; a second obtaining unit, adapted to obtain the requested system message block; The third sending unit is adapted to send the acquired requested system message block to the UE through RRC signaling. 24. The base station according to claim 23, wherein the second obtaining unit is adapted to obtain the requested system message block from other base stations. 25. The base station according to claim 24, wherein the RRC signaling comprises: an indication bit, adapted to indicate that the acquisition fails when the second acquisition unit fails to acquire the requested system message block, the The system message block to be acquired is not included in the RRC signaling. 26. The base station according to claim 23, wherein the third receiving unit is adapted to receive the RRC signaling requesting a system message block sent by the UE based on the signaling radio bearer 3. 27. A computer-readable storage medium having computer instructions stored thereon, wherein the computer instructions execute the steps of the method of any one of claims 1 to 9 when executed. 28. A computer-readable storage medium having computer instructions stored thereon, wherein the computer instructions execute the steps of the method according to any one of claims 10 to 13 when executed. 29. A terminal comprising a memory and a processor, wherein the memory stores computer instructions that can be run on the processor, wherein the processor executes claims 1 to 9 when the processor runs the computer instructions The steps of any one of the methods. 30. A base station, comprising a memory and a processor, wherein the memory stores computer instructions that can be executed on the processor, wherein the processor executes claims 10 to 13 when the processor executes the computer instructions The steps of any one of the methods.