CN109818724B - Method, terminal, base station and readable medium for acquiring and sending system message - Google Patents
Method, terminal, base station and readable medium for acquiring and sending system message Download PDFInfo
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Abstract
A method, a terminal, a base station and a readable medium for acquiring and sending system messages are provided, wherein the method for acquiring the system messages comprises the following steps: judging whether a system message block to be acquired is a system message of an on-demand type; when the system message block to be acquired is the system message of the type as required, sending an RRC signaling to a first type base station to request the system message block to be acquired, wherein the RRC signaling comprises: 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; and receiving the RRC signaling sent by the first type base station to acquire a system message block to be acquired. By applying the scheme, the system message block of the SCell or the non-serving cell according to the type as required can be successfully acquired when the service is required, so that the normal initiation of the service is ensured.
Description
Technical Field
The embodiment of the invention relates to the field of communication, in particular to a method, a terminal, a base station and a readable medium for acquiring and sending system messages.
Background
In a New Radio (NR) System, System messages (SI) are divided into Minimum System messages (MSI, SI) and Other System messages (Other SI, OSI). For MSI and a portion of OSI, the base station transmits periodically via broadcast messages; for another part of OSI, the System Information is an On Demand type System message (On Demand System Information), and when a terminal (User Equipment, UE) needs to acquire the System Information, it needs to send a request message to a base station for acquisition. For idle/inactive state UEs, send MSG1/3 message requesting acquisition of System message blocks (SIBs) of on-demand type. For the UE in the connected state, a dedicated Radio Resource Control (RRC) signaling request is sent to acquire the SIB of the on-demand type. And the base station sends the requested SIB to the UE after receiving the request sent by the UE.
When a base station adds a Secondary Cell (SCell) to a UE, RRC signaling configures only MIB and part of OSI corresponding to the SCell, but does not configure all system messages, such as SIB13 related to MBMS service.
In practical applications, for service needs, the UE may need to acquire an on-demand type SIB for the SCell or a non-serving cell (neighbor cell), and the on-demand type SIB may not be configured when the SCell is added. For example, in order for a UE to perform Multimedia Broadcast and Multicast Service (MBMS) Service on an SCell or a non-serving cell, SIB13 of the SCell or the non-serving cell needs to be acquired, and SIB13 is not configured for the UE when the SCell is added. When the SIB13 of the SCell, non-serving cell is an on-demand type SIB, the UE may only receive when the SCell or non-serving cell is likely to send SIB13 (e.g., other UEs camping on the cell trigger the cell broadcast SIB 13). It is possible that the SCell or the non-serving cell does not send the SIB13 for a long time, and the UE cannot acquire the SIB13 in the long time, so that the UE cannot initiate a required service, which affects user experience.
Disclosure of Invention
The technical problem solved by the embodiment of the invention is how to acquire the SIB of the SCell or the non-serving cell, and ensure that the UE can normally initiate the service.
In order to solve the above technical problem, an embodiment of the present invention provides a method for a terminal to obtain a system message, where the method includes: judging whether a system message block to be acquired is a system message of an on-demand type; when the system message block to be acquired is the system message of the type as required, sending an RRC signaling to a first type base station to request the system message block to be acquired, wherein the RRC signaling comprises: 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; and receiving the RRC signaling sent by the first type base station to acquire a 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 a second type base station through a signaling radio bearer 3 to request a system message block to be acquired, wherein the RRC signaling comprises: 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; and receiving the RRC signaling sent by the second type base station, and acquiring a system message block to be acquired.
Optionally, the determining whether the system message block to be acquired is a system message of an on-demand type includes: acquiring the minimum system message of the corresponding cell; and judging whether the system message block to be acquired is the system message of the type as required or not based on the indication information in the minimum system message.
Optionally, the acquiring the minimum system message of the corresponding cell includes: and 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: and acquiring the minimum system message of the corresponding cell from RRC signaling which is sent by the first type base station and corresponds to the added SCell.
Optionally, the determining whether the system message block to be acquired is a system message of an on-demand type includes: and judging whether the system message block to be acquired is the system message of the type as required or not based on the indication information in the RRC signaling which is sent by the first type base station and corresponds to the added SCell.
Optionally, the cell identifier includes: physical cell ID or CGI.
Optionally, the method further comprises: and obtaining the CGI from the minimum system message of the corresponding cell.
Optionally, the RRC signaling sent by the first type base station includes: and an indication bit adapted to indicate whether the system message block to be acquired is successfully acquired, wherein when the indication bit indicates a failure, the RRC signaling does not include the system message block to be acquired.
Embodiments of the present invention provide a computer-readable storage medium having stored thereon computer instructions, which, when executed, perform the steps of any one of the above-described methods.
An embodiment of the present invention provides a terminal, including a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the computer instructions to perform any one of the steps of the method described above.
The embodiment of the invention provides a method for sending system messages by a base station, which comprises the following steps: receiving RRC signaling for requesting a system message block sent by UE, wherein the RRC signaling comprises: 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; obtaining a requested system message block; and sending the acquired requested system message block to the UE through RRC signaling.
Optionally, the obtaining the requested system message block includes: the requested system message block is obtained from the other base station.
Optionally, the RRC signaling sent to the UE includes: and the indication bit is suitable for indicating the acquisition failure when the requested system message block is failed to be acquired, and the RRC signaling does not contain the system message block to be acquired.
Optionally, the receiving RRC signaling of the request system message block sent by the UE includes: receiving RRC signaling of the UE requesting the system message block transmitted based on the signaling radio bearer 3.
Embodiments of the present invention provide a computer-readable storage medium having stored thereon computer instructions, which, when executed, perform the steps of any one of the above-described methods.
An embodiment of the present invention provides a base station, including a memory and a processor, where the memory stores computer instructions executable on the processor, and the processor executes the computer instructions to perform any one of the steps of the method described above.
An embodiment of the present invention provides a terminal, including: the judging unit is suitable for judging whether the system message block to be acquired is the system message of the type as required; a first sending unit, adapted to send an RRC signaling to a first type of base station to request a system message block to be acquired when the system message block to be acquired is an on-demand type system message, where 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; and the first receiving unit is suitable for receiving the RRC signaling sent by the first type base station and acquiring 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 an RRC signaling to the second type base station through the signaling radio bearer 3 to request the system message block to be acquired, where 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; and the second receiving unit is suitable for receiving the RRC signaling sent by the second type base station and acquiring the system message block to be acquired.
Optionally, the determining unit includes: the acquisition subunit is suitable for acquiring the minimum system message of the corresponding cell; and the judging subunit is suitable for judging whether the system message block to be acquired is the system message of the type as required based on the indication information in the minimum system message.
Optionally, the obtaining subunit is adapted to obtain the minimum system message of the corresponding cell by receiving the minimum system message periodically broadcast by the corresponding cell.
Optionally, the acquiring subunit is adapted to acquire the minimum system message of the corresponding cell from RRC signaling sent by the first base station and corresponding to the added SCell.
Optionally, the determining unit is adapted to determine whether a system message block to be acquired is an on-demand type system message based on indication information in an RRC signaling sent by the first type base station and corresponding to an added SCell.
Optionally, the cell identifier includes: physical cell ID or 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 base station includes: and an indication bit adapted to indicate whether the base station successfully acquires the system message block to be acquired, wherein when the indication bit indicates a failure, the RRC signaling does not include the system message block to be acquired.
An embodiment of the present invention provides a base station, including: a third receiving unit, adapted to receive an RRC signaling requesting a system message block sent by a UE, where 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; a second obtaining unit adapted to obtain the requested system message block; and the third sending unit is suitable for sending the acquired requested system message block to the UE through RRC signaling.
Optionally, the second obtaining unit is adapted to obtain the requested system message block from another base station.
Optionally, the RRC signaling includes: an indication bit adapted to indicate that the acquisition fails when the second acquiring unit fails to acquire the requested system message block, where the RRC signaling does not include the system message block to be acquired.
Optionally, the third receiving unit is adapted to receive RRC signaling of the UE requesting a system message block sent based on the signaling radio bearer 3.
Compared with the prior art, the technical scheme of the embodiment of the invention has the following beneficial effects:
the embodiment of the invention can successfully acquire the required type SIB of the SCell or the non-serving cell when the service requirement exists by sending the RRC signaling to the first type base station to request the required type system message block, then receiving the RRC signaling sent by the first type base station to acquire the required type system message block, thereby ensuring the normal initiation of the service.
Further, when the signaling radio bearer 3 is configured, the RRC signaling may be sent to the second type base station through the signaling radio bearer 3, and then the RRC signaling sent by the second type base station is received to acquire the system message block to be acquired.
Further, the UE can be notified in time of failure to acquire the requested system message block through the indication bit, so that the UE can continue to acquire the requested system message block through other methods, thereby reducing the time delay of passive waiting and reducing the influence on the service.
According to the embodiment of the invention, the RRC signaling for requesting the system message block sent by the UE is received, and then the acquired requested system message block is fed back to the UE through the RRC signaling, so that the UE can successfully acquire the SIB of the SCell or the non-serving cell in an on-demand type when the service is required, and the normal initiation of the service is ensured.
Drawings
Fig. 1 is a flowchart of a method for a terminal to obtain a system message according to an embodiment of the present invention;
fig. 2 is a flowchart of a method for a base station to send a system message according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a terminal according to 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 Description
In practical applications, for service needs, the UE may need to acquire an on-demand type SIB for the SCell or the non-serving cell (neighbor cell), and the on-demand type SIB may not be configured when the SCell is added. The UE may receive the SIB which needs to be acquired only when the SCell or the non-serving cell may possibly transmit the SIB of the on-demand type which needs to be acquired, and if the SCell or the non-serving cell does not transmit the SIB of the on-demand type which needs to be acquired, the UE may not acquire the SIB, and thus may not initiate the required service, which affects user experience.
The embodiment of the invention can successfully acquire the required type SIB of the SCell or the non-serving cell when the service requirement exists by sending the RRC signaling to the first type base station to request the required type system message block, then receiving the RRC signaling sent by the first type base station to acquire the required type system message block, thereby ensuring the normal initiation of the service.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Referring to fig. 1, an embodiment of the present invention provides a method for a terminal to acquire a system message, where the method may include the following steps:
step S101, judging whether the system message block to be acquired is the system message of the type according to the requirement.
In specific implementation, for the minimum system message and a part of other system messages, the base station periodically transmits the minimum system message and the part of other system messages through broadcast messages; for the system message of the type as required, the base station does not send periodically through the broadcast message, and only can send the request message to the base station through the terminal to obtain the request message, so that whether the system message block to be obtained is the system message of the type as required or not needs to be judged. In specific implementation, the minimum system message of a cell corresponding to a system message block to be acquired can be acquired, and then whether the system message block to be acquired is the system message of the type as required is judged based on the indication information in the minimum system message; or judging whether the system message block to be acquired is the system message of the type as required based on the indication information in the RRC signaling which is sent by the first type base station and corresponds to the added SCell.
In a specific implementation, the minimum system message of the corresponding cell may be obtained by receiving the minimum system message periodically broadcasted by the cell corresponding to the system message block to be obtained, or the minimum system message of the corresponding cell may be obtained from an RRC signaling sent by the first type base station and corresponding to the increased SCell.
In a specific implementation, for a dual-connection scenario, the primary base station is the first type base station, and the secondary base station is the second type base station; for other scenarios than dual connectivity, for example, a carrier aggregation scenario, the serving base station is the first type base station.
In a specific implementation, the cell corresponding to the system message block to be acquired may be an SCell or a non-serving cell. When a cell corresponding to a system message block to be acquired is an SCell, the first type base station is a serving base station for a carrier aggregation scene; for a dual connectivity scenario, the first type of base station is a master base station. And when the system message block to be acquired corresponds to a non-service cell, the first type base station is a service base station.
Step S102, when the system message block to be acquired is the system message of the type as required, sending RRC signaling to the first type base station to request the system message block to be acquired, wherein the RRC signaling comprises: 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 a carrier aggregation scenario, when a service needs to be initiated on an SCell, a system message of the SCell is acquired, and a system message block to be acquired is an on-demand type system message, a dedicated RRC signaling may be sent to the first type base station, i.e., a serving base station, to request 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 a serving cell index of an SCell corresponding to the system message block to be acquired, where the type of the system message block to be acquired is used to indicate the content of the system message block to be acquired by the base station, for example, SIB 13; the serving cell index of the corresponding cell is used to indicate which cell's system message block is acquired by the base station.
In a specific implementation, for a dual connectivity scenario, for example, a Long Term Evolution system (LTE) and an NR dual connectivity scenario, where an LTE base station is a primary base station and an NR base station is a secondary base station. When a service needs to be initiated at the SCell of the second type base station, i.e., the secondary base station, to acquire the system message of the SCell, and the system message block to be acquired is an on-demand type system message, a dedicated RRC signaling may be sent to the first type base station, i.e., the primary base station, to request 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 a serving cell index, a cell identifier or frequency information of the SCell corresponding to the system message block to be acquired. And after receiving the RRC signaling, the first type base station interacts with the auxiliary base station to acquire a requested system message block.
In a specific implementation, for a scenario with dual connectivity and a signaling Radio Bearer 3 (SRB 3) configured, when a service needs to be initiated on an SCell of a second type base station, that is, an auxiliary base station, to acquire a system message of the SCell, and a system message block to be acquired is an on-demand type system message, an RRC signaling may be directly sent to the second type base station, that is, the auxiliary base station, through the signaling Radio Bearer 3 to request the system message block to be acquired, where 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, when a service needs to be initiated in a non-serving cell, a system message of the non-serving cell is acquired, and a system message block to be acquired is an on-demand type system message, a dedicated RRC signaling may be sent to the first type base station, i.e., a serving base station, to request 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 cell identifier of the cell corresponding to the system message block to be acquired. And after receiving the RRC signaling, the first type base station interacts with the base station of the corresponding cell to acquire a requested system message block.
In an embodiment of the present invention, the Cell Identifier may be a physical Cell ID or a Global identity (CGI).
In a specific implementation, the CGI may be obtained from a minimum system message of the cell. The minimum system message of the cell may be obtained by the method described in step S101, and is not described herein again.
Step S103, receiving the RRC signaling sent by the first type base station, and acquiring a system message block to be acquired.
In a specific implementation, the first type base station may not interact with the base station of the corresponding cell, for example, no X2 interface is not available between the corresponding base stations to communicate, and obtain the requested system message block, in which case, the RRC signaling sent by the first type base station may include: and an indication bit adapted to indicate whether the system message block to be acquired is successfully acquired, wherein when the indication bit indicates a failure, the RRC signaling does not include the system message block to be acquired.
Through the indication bit, the failure of obtaining the requested system message block can be timely notified, so that the terminal can continue to obtain the requested system message block through other methods, the passive waiting time delay is reduced, and the influence on the service is reduced.
In a specific implementation, for a scenario with dual connectivity and configured SRB3, when a service needs to be initiated on an SCell of the second type base station, a system message of the SCell is acquired, and a system message block to be acquired is an on-demand type system message, an RRC signaling may be directly sent to the second type base station through a signaling radio bearer 3, where the RRC signaling includes: the type of the system message block to be acquired, the serving cell index, the cell identifier, or the frequency information of the cell corresponding to the system message block to be acquired, so as to request the system message block to be acquired.
By applying the scheme, the system message block of the type as required is requested by sending the RRC signaling to the first type base station, then the RRC signaling sent by the first type base station is received, the system message block of the type as required is acquired, and the SIB of the SCell or the non-serving cell of the type as required can be successfully acquired when service is required, so that normal initiation of the service is ensured.
In order to make those skilled in the art better understand and implement the present invention, the embodiment of the present invention further provides a method for a base station to transmit a system message, as shown in fig. 2.
Referring to fig. 2, the method for the base station to transmit the system message may include the following steps:
step S201, receiving an RRC signaling requesting a system message block sent by a UE, where 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, i.e. the secondary base station, RRC signaling requesting a system message block sent by the UE based on the signaling radio bearer 3 may be received.
Step S202, the requested system message block is acquired.
In a specific implementation, for a first type of base station, i.e., a serving base station or a primary base station, the system message block to be requested may be obtained from other base stations.
In an embodiment of the present invention, after receiving an RRC signaling for requesting a system message block sent by a UE, an SCell of a secondary base station in a scenario where the corresponding cell is dual connectivity may interact with the secondary base station, and obtain the system message block to be requested from the secondary base station.
In an embodiment of the present invention, for a non-serving cell corresponding to the cell, after receiving an RRC signaling for requesting a system message block sent by a UE, the non-serving cell may interact with a base station corresponding to the cell to obtain a system message block to be requested.
Step S203, the acquired requested system message block is sent to the UE through RRC signaling.
In a specific implementation, for the first type of base stations, there may be no X2 interface between the base stations, and the base stations cannot communicate with each other, resulting in failure to acquire the requested system message block. In this case, the transmitted RRC signaling may include: and the indication bit is suitable for indicating the acquisition failure when the requested system message block is failed to be acquired, and the RRC signaling does not contain the system message block to be acquired. Through the indication bit, the UE can be informed of failure of acquiring the requested system message block in time, so that the UE can continue to acquire the requested system message block through other methods, the passive waiting time delay is reduced, and the influence on the service is reduced.
By applying the scheme, the UE can successfully acquire the SIB of the SCell or the non-serving cell according to the type of the request when the service is required by receiving the RRC signaling which is sent by the UE and requests the system message block, and then feeding back the acquired requested system message block to the UE through the RRC signaling, thereby ensuring the normal initiation of the service.
In order to make those skilled in the art better understand and implement the present invention, the embodiment of the present invention further provides a terminal capable of implementing the method for acquiring a system message by a terminal, as shown in fig. 3.
Referring to fig. 3, the terminal 30 includes: a judging unit 31, a first transmitting unit 32 and a first receiving unit 33, wherein:
the determining unit 31 is adapted to determine whether the system message block to be acquired is a system message of an on-demand type.
The first sending unit 32 is adapted to send an 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, where 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 first receiving unit 33 is adapted to receive the RRC signaling sent by the first type of base station, and acquire a 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 transmitting unit (not shown) and a second receiving unit (not shown), wherein:
the second sending unit is adapted to send an RRC signaling to the second type base station through the signaling radio bearer 3 to request the system message block to be acquired, where 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 base station, and acquire a system message block to be acquired.
In an embodiment of the present invention, the determining unit 31 includes: an acquisition subunit 311 and a determination subunit 312, wherein:
the obtaining subunit 311 is adapted to obtain the minimum system message of the corresponding cell.
The determining subunit 312 is adapted to determine, based on the indication information in the minimum system message, whether the system message block to be acquired is a system message of an on-demand type.
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 broadcast 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 RRC signaling sent by the first type base station and corresponding to the added SCell.
In a specific implementation, the determining unit 31 is adapted to determine whether a system message block to be acquired is an on-demand type system message based on indication information in an RRC signaling sent by the first type base station and corresponding to an added SCell.
In an embodiment of the present invention, the cell identifier includes: physical cell ID or CGI.
In a specific implementation, the terminal 30 further includes: a first obtaining unit (not shown) adapted to obtain the CGI from the smallest system message of the corresponding cell.
In an embodiment of the present invention, the RRC signaling sent by the first type base station includes: and an indication bit adapted to indicate whether the base station successfully acquires the system message block to be acquired, wherein when the indication bit indicates a failure, the RRC signaling does not include the system message block to be acquired.
In a specific implementation, the working flow and the principle of the terminal 30 may refer to the description in the method for acquiring a system message provided in the above embodiment, and are not described herein again.
The embodiment of the present invention provides a computer-readable storage medium, on which a computer instruction is stored, where the computer instruction executes, when running, any of the steps corresponding to the above method for acquiring a system message, and details are not repeated here.
The embodiment of the present invention provides a terminal, including a memory and a processor, where the memory stores a computer instruction capable of running on the processor, and the processor executes, when running the computer instruction, any of the steps corresponding to the above method for acquiring a system message, which is not described herein again.
In order to make those skilled in the art better understand and implement the present invention, the embodiment of the present invention further provides a base station, which can implement the method for sending the 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, where 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 retrieving unit 42 is adapted to retrieve the requested system message block.
The third sending unit 43 is adapted to send the acquired 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 another base station.
In a specific implementation, the RRC signaling includes: an indication bit adapted to indicate that the acquisition fails when the second acquiring unit 42 fails to acquire the requested system message block, where the RRC signaling does not include the system message block to be acquired.
In a specific implementation, the third receiving unit 41 is adapted to receive an RRC signaling requesting a system message block sent by the UE based on the signaling radio bearer 3, where 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, the working flow and the principle of the base station 40 may refer to the description in the method for sending the system message provided in the above embodiment, and are not described herein again.
The embodiment of the present invention provides a computer-readable storage medium, on which a computer instruction is stored, where the computer instruction executes, when running, the steps corresponding to any one of the above methods for sending a system message, and details are not described here again.
The embodiment of the present invention provides a base station, including a memory and a processor, where the memory stores a computer instruction capable of being executed on the processor, and the processor executes, when executing the computer instruction, a step corresponding to any one of the above methods for sending a system message, which is not described herein again.
Those skilled in the art will appreciate that all or part of the steps in the methods of the above embodiments may be implemented by associated hardware instructed by a program, which may be stored in a computer-readable storage medium, and the storage medium may include: ROM, RAM, magnetic or optical disks, and the like.
Although the present invention is disclosed above, the present invention is not limited thereto. Various changes and modifications may be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (30)
1. A method for a terminal to acquire a system message is characterized by comprising the following steps:
judging whether a system message block to be acquired is a system message of an on-demand type; the system message block to be acquired is a system message block of an auxiliary cell; the system message block to be acquired is not configured when a secondary cell is added;
when the system message block to be acquired is the system message of the type as required, sending an RRC (radio resource control) signaling to a first type base station; the first type base station interacts with a second type base station to acquire the system message block to be acquired; wherein the RRC signaling comprises: 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;
receiving RRC signaling sent by the first type base station, and acquiring a system message block to be acquired;
the first base station is a main base station, and the second base station is an auxiliary base station.
2. The method for acquiring system messages by a terminal according to claim 1, wherein 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 comprises:
sending RRC signaling to a second type base station through a signaling radio bearer 3 to request a system message block to be acquired, wherein the RRC signaling comprises: 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;
and receiving the RRC signaling sent by the second type base station, and acquiring a system message block to be acquired.
3. The method for acquiring system messages by a terminal according to claim 1 or 2, wherein the determining whether the system message block to be acquired is an on-demand type system message comprises:
acquiring the minimum system message of the corresponding cell;
and judging whether the system message block to be acquired is the system message of the type as required or not based on the indication information in the minimum system message.
4. The method of claim 3, wherein the obtaining the minimum system message of the corresponding cell comprises:
and acquiring the minimum system message of the corresponding cell by receiving the minimum system message periodically broadcasted by the corresponding cell.
5. The method of claim 3, wherein the obtaining the minimum system message of the corresponding cell comprises:
and acquiring the minimum system message of the corresponding cell from RRC signaling which is sent by the first type base station and corresponds to the added SCell.
6. The method for acquiring system messages by a terminal according to claim 1 or 2, wherein the determining whether the system message block to be acquired is an on-demand type system message comprises:
and judging whether the system message block to be acquired is the system message of the type as required or not based on the indication information in the RRC signaling which is sent by the first type base station and corresponds to the added SCell.
7. The method of claim 1, wherein the cell identifier comprises: physical cell ID or CGI.
8. The method for acquiring the system message by the terminal according to claim 7, further comprising:
and obtaining the CGI from the minimum system message of the corresponding cell.
9. The method of claim 1, wherein the RRC signaling sent by the first base station includes: and an indication bit adapted to indicate whether the system message block to be acquired is successfully acquired, wherein when the indication bit indicates a failure, the RRC signaling does not include the system message block to be acquired.
10. A method for a primary base station to transmit a system message, comprising:
receiving RRC signaling for requesting a system message block sent by UE, wherein the RRC signaling comprises: 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 system message block to be acquired is a system message block of an auxiliary cell; the system message block to be acquired is not configured when a secondary cell is added;
interacting with a second type base station to obtain a requested system message block;
sending the acquired requested system message block to the UE through RRC signaling;
and the second base station is a secondary base station.
11. The method of claim 10, wherein the obtaining the requested system message block comprises: the requested system message block is obtained from the other base station.
12. The method of claim 11, wherein the RRC signaling sent to the UE comprises: and the indication bit is suitable for indicating the acquisition failure when the requested system message block is failed to be acquired, and the RRC signaling does not contain the system message block to be acquired.
13. The method of claim 10, wherein the receiving RRC signaling requesting a system message block sent by the UE comprises: receiving RRC signaling of the UE requesting the system message block transmitted based on the signaling radio bearer 3.
14. A terminal, comprising:
the judging unit is suitable for judging whether the system message block to be acquired is the system message of the type as required;
the first sending unit is suitable for sending RRC signaling to the first type base station when the system message block to be acquired is the system message of the type as required; the first type base station interacts with a second type base station to acquire the system message block to be acquired; wherein the RRC signaling comprises: 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 system message block to be acquired is a system message block of an auxiliary cell; the system message block to be acquired is not configured when a secondary cell is added;
the first receiving unit is suitable for receiving the RRC signaling sent by the first type base station and acquiring a system message block to be acquired;
the first base station is a main base station, and the second base station is an auxiliary base station.
15. The terminal according to claim 14, wherein when the system message block to be acquired is an on-demand type system message and the signaling radio bearer 3 is configured, further comprising:
a second sending unit, adapted to send an RRC signaling to the second type base station through the signaling radio bearer 3 to request the system message block to be acquired, where 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;
and the second receiving unit is suitable for receiving the RRC signaling sent by the second type base station and acquiring the system message block to be acquired.
16. The terminal according to claim 14 or 15, wherein the judging unit comprises: the acquisition subunit is suitable for acquiring the minimum system message of the corresponding cell;
and the judging subunit is suitable for judging whether the system message block to be acquired is the system message of the type as required based on the indication information in the minimum system message.
17. 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 acquiring subunit is adapted to acquire the minimum system message of the corresponding cell from RRC signaling sent by the base station of the first type corresponding to the added SCell.
19. The terminal according to claim 14 or 15, wherein the determining unit is adapted to determine whether the system message block to be acquired is an on-demand type system message based on indication information in an RRC signaling sent by the base station of the first type and corresponding to an added SCell.
20. The terminal of claim 14, wherein the cell identifier comprises: physical cell ID or CGI.
21. The terminal of claim 20, further comprising:
a first obtaining unit, 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 base station of the first type includes: and an indication bit adapted to indicate whether the base station successfully acquires the system message block to be acquired, wherein when the indication bit indicates a failure, the RRC signaling does not include the system message block to be acquired.
23. A master base station, comprising:
a third receiving unit, adapted to receive an RRC signaling requesting a system message block sent by a UE, where 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 system message block to be acquired is a system message block of an auxiliary cell; the system message block to be acquired is not configured when a secondary cell is added; the second acquisition unit is suitable for acquiring the requested system message block by interacting with the second type base station;
a third sending unit, adapted to send the acquired requested system message block to the UE through RRC signaling;
and the second base station is a secondary base station.
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 of claim 24, wherein the RRC signaling comprises: an indication bit adapted to indicate that the acquisition fails when the second acquiring unit fails to acquire the requested system message block, where the RRC signaling does not include the system message block to be acquired.
26. The base station according to claim 23, wherein the third receiving unit is adapted to receive 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 when executed perform the steps of the method of any one of claims 1 to 9.
28. A computer readable storage medium having computer instructions stored thereon for performing the steps of the method of any one of claims 10 to 13 when the computer instructions are executed.
29. A terminal comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any one of claims 1 to 9.
30. A base station comprising a memory and a processor, the memory having stored thereon computer instructions executable on the processor, wherein the processor, when executing the computer instructions, performs the steps of the method of any one of claims 10 to 13.
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| CN201711177620.2A CN109818724B (en) | 2017-11-22 | 2017-11-22 | Method, terminal, base station and readable medium for acquiring and sending system message |
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