CN109819525A - The method of terminal and its acquisition system message, readable medium - Google Patents
The method of terminal and its acquisition system message, readable medium Download PDFInfo
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- CN109819525A CN109819525A CN201711177665.XA CN201711177665A CN109819525A CN 109819525 A CN109819525 A CN 109819525A CN 201711177665 A CN201711177665 A CN 201711177665A CN 109819525 A CN109819525 A CN 109819525A
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Abstract
A kind of terminal and its obtain the method for system message, readable medium, the method that the terminal obtains system message include: judge System information block to be obtained whether be on-demand type system message；When System information block to be obtained is the system message of on-demand type, random access preamble is sent to its corresponding cell, to request System information block to be obtained.Using above scheme, the System information block of the on-demand type of SCell or non-service cell when there is business demand, can be successfully obtained, so that it is guaranteed that the normal initiation of business.
Description
Technical field
The present embodiments relate to the communications field more particularly to a kind of terminal and its obtain the method, readable of system message
Medium.
Background technique
In new wireless (New Radio, NR) system, system message (System Information, SI) is divided into minimum
System message (Minimum System Information, MSI) and other systems message (Other SI, OSI).For MSI
With a part of OSI, base station is sent by the broadcast message period；It is the system message (On of on-demand type for another part OSI
Demand System Information), when terminal (User Equipment, UE) needs to obtain, need to send request letter
Breath to base station obtains.For free time/unactivated state UE, the system message that MSG1/3 message request obtains on-demand type is sent
Block (System Information Block, SIB).For the UE of connection status, sends dedicated radio resources and control (Radio
Resource Control, RRC) scheduling request obtains the SIB of on-demand type.Base station sends and is asked after receiving the request of UE transmission
The SIB to UE asked.
When base station is that UE increases secondary cell (Secondary Cell, SCell), it is corresponding that RRC signaling only configures SCell
MIB and part OSI, without configuring all system messages, such as SIB13.
In practical applications, for the needs of business, UE may need to obtain SCell or non-service cell (adjacent area)
The SIB of on-demand type, and the SIB of the on-demand type, it is possible to can't be configured when increasing SCell.For example, UE in order to
Multimedia broadcasting and multicast (Multimedia Broadcast Multicast are carried out on SCell or non-service cell
Service, MBMS) business, need to obtain the SIB13 of SCell or non-service cell, and SIB13 will not when increasing SCell
It is allocated to UE.When the SIB13 of the SCell, non-service cell is the SIB of on-demand type, UE can only be in SCell or non-serving
(such as the described Cell Broadcast CB SIB13 of other UE triggering for residing in the cell) is likely to when cell is possible to send SIB13
It receives.It is possible that SCell or non-service cell do not send SIB13 in a long time, then UE can not be obtained within this time
SIB13 influences the experience of user so that the business needed can not be initiated.
Summary of the invention
The technical issues of embodiment of the present invention solves is how to obtain the SIB of SCell or non-service cell, it is ensured that UE can
Normally to initiate business.
In order to solve the above technical problems, the embodiment of the present invention provides a kind of method that terminal obtains system message, the side
Method include: judge System information block to be obtained whether be on-demand type system message；When System information block to be obtained is
When the system message of on-demand type, random access preamble is sent to its corresponding cell, to request System information block to be obtained.
Optionally, it is described judge System information block to be obtained whether be on-demand type system message include: obtain institute
State the minimum system message of corresponding cell；Based on the instruction information in minimum system message, system message to be obtained is judged
Block whether be on-demand type system message.
Optionally, the minimum system message for obtaining the corresponding cell includes: described corresponding small by receiving
The broadcast message that area's period sends obtains the minimum system message of the corresponding cell.
Optionally, the minimum system message for obtaining the corresponding cell includes: the increase SCell sent from base station
In corresponding RRC signaling, the minimum system message of the corresponding cell is obtained.
Optionally, described to judge that System information block to be obtained whether be the system message of on-demand type includes: based on base
Instruction information in the corresponding RRC signaling of increase SCell sent of standing, judges whether System information block to be obtained is on-demand class
The system message of type.
Optionally, the transmission random access preamble to its corresponding cell includes: to send GAP request by RRC signaling
Information is to base station；The RRC signaling comprising GAP information of base station feedback is received, the GAP information includes the initial time position of GAP
It sets and length；Random access preamble is sent in the GAP to its corresponding cell.
Optionally, the RRC signaling for sending GAP solicited message includes: the mark letter of cell corresponding to system message to be obtained
Breath, or the initial position GAP recommended and length.
Optionally, before the transmission random access preamble to its corresponding cell, further includes: preferentially to PCell or
Secondary cell transmits signal.
Optionally, the signal of prioritised transmission includes: to be sent by PCell or secondary cell corresponding PUCCH and PRACH
Signal.
The embodiment of the present invention provides a kind of terminal, comprising: judging unit, suitable for whether judging System information block to be obtained
For the system message of on-demand type；First transmission unit, suitable for disappearing when the system that System information block to be obtained is on-demand type
When breath, random access preamble is sent to its corresponding cell, to request System information block to be obtained.
Optionally, the judging unit includes: acquisition subelement, and the minimum system suitable for obtaining the corresponding cell disappears
Breath；Judgment sub-unit, suitable for based on the instruction information in minimum system message, judge System information block to be obtained whether be by
Need the system message of type.
Optionally, the acquisition subelement is obtained suitable for the broadcast message by receiving the corresponding cell period transmission
Take the minimum system message of the corresponding cell.
Optionally, the acquisition subelement, suitable for obtaining institute from the corresponding RRC signaling of increase SCell that base station is sent
State the minimum system message of corresponding cell.
Optionally, the judging unit, suitable for the instruction increased in the corresponding RRC signaling of SCell sent based on base station
Information, judge System information block to be obtained whether be on-demand type system message.
Optionally, first transmission unit includes: the first transmission sub-unit, suitable for being when System information block to be obtained
When the system message of on-demand type, GAP solicited message is sent to base station by RRC signaling；Receiving subelement is suitable for receiving base station
The RRC signaling comprising GAP information of feedback, the GAP information include the start time position and length of GAP；Second sends son
Unit is suitable for sending random access preamble in the GAP to its corresponding cell, to request System information block to be obtained.
Optionally, the RRC signaling for sending GAP solicited message includes: the mark letter of cell corresponding to system message to be obtained
Breath, or the initial position GAP recommended and length.
Optionally, the terminal further include: the second transmission unit is suitable for sending random access in first transmission unit
It is leading to before its corresponding cell, preferentially transmit signal to PCell or secondary cell.
Optionally, the signal of prioritised transmission includes: to be sent by PCell or secondary cell corresponding PUCCH and PRACH
Signal.
The embodiment of the present invention provides a kind of computer readable storage medium, is stored thereon with computer instruction, the calculating
The step of executing any of the above-described the method when machine instruction operation.
The embodiment of the present invention provides a kind of terminal, including memory and processor, and being stored on the memory can be in institute
The computer instruction run on processor is stated, the processor executes side described in any of the above-described when running the computer instruction
The step of method.
Compared with prior art, the technical solution of the embodiment of the present invention has the advantages that
The embodiment of the present invention pass through judge System information block to be obtained whether be on-demand type system message, for pressing
The system message of type is needed, sends random access preamble to its corresponding cell, to request System information block to be obtained.It can be with
When there is business demand, the SIB of the on-demand type of SCell or non-service cell is successfully obtained, so that it is guaranteed that business is normal
It initiates.
Further, when perhaps there are prioritised transmission PCell when data transmission or serving cells for serving cell by PCell
Data, then send random access preamble to the corresponding cell of System information block to be obtained, can not influence it is current
Under the premise of the business of PCell or serving cell is transmitted, System information block to be obtained is requested, user's body is further promoted
It tests.
Detailed description of the invention
Fig. 1 is the flow chart for the method that a kind of terminal provided in an embodiment of the present invention obtains system message；
Fig. 2 is a kind of structural schematic diagram of terminal provided in an embodiment of the present invention.
Specific embodiment
In practical applications, for the needs of business, UE may need to obtain SCell or non-service cell (adjacent area)
The SIB of on-demand type, and the SIB of the on-demand type, are possible to configure when increasing SCell.UE can only be in SCell
Or non-service cell is possible to be likely to receive when sending the SIB for needing the on-demand type obtained, if SCell or non-serving are small
Area does not send the SIB for the on-demand type that its needs obtains whithin a period of time, and UE can not then obtain SIB, to can not initiate to need
The business wanted influences the experience of user.
The embodiment of the present invention pass through judge System information block to be obtained whether be on-demand type system message, for pressing
The system message of type is needed, sends random access preamble to its corresponding cell, to request System information block to be obtained.It can be with
When there is business demand, the SIB of the on-demand type of SCell or non-service cell is successfully obtained, so that it is guaranteed that business is normal
It initiates.
It is understandable to enable above-mentioned purpose of the invention, feature and beneficial effect to become apparent, with reference to the accompanying drawing to this
The specific embodiment of invention is described in detail.
Referring to Fig. 1, the embodiment of the invention provides a kind of method that terminal obtains system message, the method may include
Following steps:
Step S101, judge System information block to be obtained whether be on-demand type system message.
In specific implementation, for minimum system message and a part of other systems message, base station passes through broadcast message week
Phase sends；For the system message of on-demand type, base station will not be sent by the broadcast message period, can only be sent and be asked by terminal
Ask information to base station obtain, therefore need to judge System information block to be obtained whether be on-demand type system message.
In an embodiment of the present invention, the minimum system message includes MIB (Master Information Block)
And the instruction that terminal accesses parameter configuration necessary to the cell and on-demand type system message is contained in SIB1, MIB and SIB1
Information.It is understood that the minimum system message can also include that other systems disappear with the evolution and development of agreement
Block is ceased, such as SIB2, the specific embodiment of the minimum system message do not constitute a limitation on the scope of protection of the present invention.
In specific implementation, can by obtaining the minimum system message of the corresponding cell of System information block to be obtained,
The instruction information being then based in minimum system message judges whether System information block to be obtained is that the system of on-demand type disappears
Breath；The instruction information increased in the corresponding RRC signaling of SCell that can also be sent based on base station, judges that system to be obtained disappears
Breath block whether be on-demand type system message.
In specific implementation, can be by receiving the minimum of the corresponding cell periodic broadcasting of System information block to be obtained
System message, obtains the minimum system message of the corresponding cell, can also obtain from increasing in the corresponding RRC signaling of SCell
The minimum system message of the corresponding cell.
In specific implementation, the corresponding cell of the system message to be obtained both can be SCell, or non-clothes
Business cell.When the corresponding cell of system message to be obtained is non-service cell, terminal need to be obtained be by receiving
The minimum system message of the corresponding cell periodic broadcasting of message blocks of uniting, obtains the minimum system message of the corresponding cell.
In specific implementation, while by knowing that System information block to be obtained is the system message of on-demand type,
Terminal can also know the random access of the cell by the minimum system message of the corresponding cell of System information block to be obtained
The specific random access configuration for configuring or knowing system message of the cell for requesting on-demand type, such as requesting to press
The corresponding random access lead code of the System information block that need to be requested.
Step S102 sends random access preamble when System information block to be obtained is the system message of on-demand type
To its corresponding cell, to request System information block to be obtained.
In specific implementation, sending random access preamble (Preamble), to its corresponding cell, (i.e. to be obtained is
The corresponding cell of message blocks of uniting) before, need to consider whether the terminal is supported in current service cell and described corresponding small
Area's simultaneous transmission data, such as consider whether UE supports in main plot (Primary cell, PCell) and secondary cell simultaneous transmission
Whether data or UE support in current service cell and non-service cell simultaneous transmission data.Main plot and secondary cell are
The serving cell of UE.
In specific implementation, when terminal support is (i.e. to be obtained in current service cell and the corresponding cell
The corresponding cell of System information block) simultaneous transmission data when, random access preamble can be sent to the corresponding cell, to ask
Seek System information block to be obtained.When the terminal is not supported in current area and the corresponding cell simultaneous transmission data
When, it is thus necessary to determine that the priority of the random access preamble of the signal of current service cell and the corresponding cell, and according to excellent
First grade selects the signal of the random access preamble for preferentially sending the corresponding cell or prioritised transmission current service cell (i.e.
Signal is sent to current service cell).
In an embodiment of the present invention, signal preferentially can be transmitted to PCell or secondary cell, then sends random access
The corresponding cell.
It in specific implementation, preferentially can be with to the specific implementation of PCell or secondary cell transmission signal are as follows: when being not required to
When transmitting signal to PCell or secondary cell, random access preamble is sent to the corresponding cell；Or: terminal is excellent
The transimission power to PCell or secondary cell transmission signal is first distributed, the embodiment of the present invention is with no restrictions.
In specific implementation, the signal preferentially transmitted to PCell or secondary cell can be that PCell or secondary cell are corresponding
Physical Uplink Control Channel (Physical Uplink Control Channel, PUCCH) and Physical Random Access Channel
Signal on (Physical Random Access Channel, PRACH).
By prioritised transmission PCell or the data of secondary cell, random access preamble is then sent to described corresponding small
Area can request System information block to be obtained under the premise of the business for not influencing current PC ell or secondary cell is transmitted,
Further user experience is promoted in specific implementation, when the terminal is not supported in current service cell and the corresponding cell
When simultaneous transmission data, it can also be used to send to base station requests GAP by RRC signaling and request System information block to be obtained
Random access preamble.
In an embodiment of the present invention, the terminal can be by RRC signaling transmission GAP solicited message to base station, then
The RRC signaling comprising GAP information of base station feedback is received, the GAP information includes the start time position and length of GAP.Eventually
End can indicate the identification information of cell corresponding to system message to be obtained so as to base station in the RRC signaling of GAP solicited message
The initial position of reasonable disposition GAP and length；Or it can indicate the initial position GAP recommended and length.
In specific implementation, terminal can give according to the random access configuration parameter of cell corresponding to system message to be obtained
The recommendation of GAP configuration out.
By requesting GAP, for sending the random access preamble for requesting System information block to be obtained.In the GAP,
Base station will not dispatch the terminal, therefore can be under the premise of the business for not influencing current PC ell or serving cell is transmitted, hair
Send random access preamble to the corresponding cell.
In specific implementation, after the terminal sends random access preamble to the corresponding cell, the correspondence is administered
The base station of cell System information block to be obtained can be sent according to existing method to the terminal, such as pass through the side of broadcast
Formula sends System information block to be obtained, and the terminal can receive the system message to be obtained based on existing method
Block, the embodiment of the present invention is with no restrictions.
Using above scheme, by judge System information block to be obtained whether be on-demand type system message, for
The system message of on-demand type sends random access preamble to its corresponding cell, to request System information block to be obtained.It can
The SIB of the on-demand type of SCell or non-service cell is successfully obtained, so that it is guaranteed that business is just when there is business demand
Often initiate.
To better understand those skilled in the art and implementing the present invention, the embodiment of the invention also provides one kind can
Realize that above-mentioned terminal obtains the terminal of the method for system message, as shown in Figure 2.
Referring to fig. 2, the terminal 20 may include: judging unit 21 and the first transmission unit 22, in which:
The judging unit 21, suitable for judge System information block to be obtained whether be on-demand type system message.
First transmission unit 22, suitable for sending out when System information block to be obtained is the system message of on-demand type
Send random access preamble to its corresponding cell, to request System information block to be obtained.
In specific implementation, the judging unit 21 includes: to obtain subelement 211 and judgment sub-unit 212, in which:
The acquisition subelement 211, suitable for obtaining the minimum system message of the corresponding cell.
The judgment sub-unit 212, suitable for judging that system to be obtained disappears based on the instruction information in minimum system message
Breath block whether be on-demand type system message.
In an embodiment of the present invention, the acquisition subelement 211 is suitable for by receiving the corresponding cell period hair
The broadcast message sent obtains the minimum system message of the corresponding cell.
In an embodiment of the present invention, the acquisition subelement 211, the increase SCell suitable for sending from base station are corresponding
In RRC signaling, the minimum system message of the corresponding cell is obtained.
In specific implementation, the judging unit 21, suitable for the corresponding RRC signaling of increase SCell sent based on base station
In instruction information, judge System information block to be obtained whether be on-demand type system message.
In specific implementation, first transmission unit 22 includes: the first transmission sub-unit 221,222 and of receiving subelement
Second transmission sub-unit 223, in which:
First transmission sub-unit 221, suitable for when System information block to be obtained be on-demand type system message when,
GAP solicited message is sent to base station by RRC signaling.
The receiving subelement 222, suitable for receiving the RRC signaling comprising GAP information of base station feedback, the GAP information
Start time position and length comprising GAP.
Second transmission sub-unit 223, is suitable for sending random access preamble in the GAP to its corresponding cell,
To request System information block to be obtained.
In specific implementation, the RRC signaling for sending GAP solicited message includes: cell corresponding to system message to be obtained
Identification information, or the initial position GAP recommended and length.
In an embodiment of the present invention, the terminal 20 further include: the second transmission unit 23 is suitable for sending described first
Before unit 22 sends random access preamble to its corresponding cell, signal preferentially is transmitted to PCell or secondary cell.
In specific implementation, the signal of prioritised transmission includes: by PCell or secondary cell corresponding PUCCH and PRACH
The signal of transmission.
In specific implementation, the workflow of the terminal 20 and principle can be with reference to the acquisitions provided in above-described embodiment
Description in the method for system message, details are not described herein again.
The embodiment of the present invention provides a kind of computer readable storage medium, is stored thereon with computer instruction, the calculating
Any of the above-described kind of step corresponding to the method is executed when machine instruction operation, details are not described herein again.
The embodiment of the present invention provides a kind of terminal, including memory and processor, and being stored on the memory can be
The computer instruction run on the processor, the processor execute described in any of the above-described kind when running the computer instruction
Step corresponding to method, details are not described herein again.
Those of ordinary skill in the art will appreciate that all or part of the steps in the various methods of above-described embodiment is can
It is completed with instructing relevant hardware by program, which can be stored in a computer readable storage medium, storage
Medium may include: ROM, RAM, disk or CD etc..
Although present disclosure is as above, present invention is not limited to this.Anyone skilled in the art are not departing from this
It in the spirit and scope of invention, can make various changes or modifications, therefore protection scope of the present invention should be with claim institute
Subject to the range of restriction.
Claims (20)
1. a kind of method that terminal obtains system message characterized by comprising
Judge System information block to be obtained whether be on-demand type system message；
When System information block to be obtained is the system message of on-demand type, it is corresponding small to its to send random access preamble
Area, to request System information block to be obtained.
2. the method that terminal according to claim 1 obtains system message, which is characterized in that the judgement it is to be obtained be
Whether system message blocks are that the system message of on-demand type includes:
Obtain the minimum system message of the corresponding cell；
Based on the instruction information in minimum system message, judge whether System information block to be obtained is that the system of on-demand type disappears
Breath.
3. the method that terminal according to claim 2 obtains system message, which is characterized in that the acquisition is described corresponding
The minimum system message of cell includes:
By receiving the broadcast message of the corresponding cell period transmission, the minimum system for obtaining the corresponding cell disappears
Breath.
4. the method that terminal according to claim 2 obtains system message, which is characterized in that the acquisition is described corresponding
The minimum system message of cell includes:
From the corresponding RRC signaling of increase SCell that base station is sent, the minimum system message of the corresponding cell is obtained.
5. the method that terminal according to claim 1 obtains system message, which is characterized in that the judgement it is to be obtained be
Whether system message blocks are that the system message of on-demand type includes:
Based on the instruction information increased in the corresponding RRC signaling of SCell that base station is sent, judge that System information block to be obtained is
The no system message for on-demand type.
6. the method that terminal according to claim 1 obtains system message, which is characterized in that before the transmission random access
Being directed at its corresponding cell includes:
GAP solicited message is sent to base station by RRC signaling；
The RRC signaling comprising GAP information of base station feedback is received, the GAP information includes the start time position and length of GAP
Degree；
Random access preamble is sent in the GAP to its corresponding cell.
7. the method that terminal according to claim 6 obtains system message, which is characterized in that send GAP solicited message
RRC signaling includes:
The identification information of cell corresponding to system message to be obtained, or the initial position GAP recommended and length.
8. the method that terminal according to claim 1 obtains system message, which is characterized in that before the transmission random access
It is directed at before its corresponding cell, further includes:
Preferentially signal is transmitted to PCell or secondary cell.
9. the method that terminal according to claim 8 obtains system message, which is characterized in that the signal packet of prioritised transmission
It includes: the signal sent by PCell or secondary cell corresponding PUCCH and PRACH.
10. a kind of terminal characterized by comprising
Judging unit, suitable for judge System information block to be obtained whether be on-demand type system message；
First transmission unit, suitable for sending random access when System information block to be obtained is the system message of on-demand type
It is leading to its corresponding cell, to request System information block to be obtained.
11. terminal according to claim 10, which is characterized in that the judging unit includes:
Subelement is obtained, suitable for obtaining the minimum system message of the corresponding cell；
Judgment sub-unit, suitable for based on the instruction information in minimum system message, judge System information block to be obtained whether be
The system message of on-demand type.
12. terminal according to claim 11, which is characterized in that the acquisition subelement, it is described right by receiving to be suitable for
The broadcast message that the cell period answered sends obtains the minimum system message of the corresponding cell.
13. terminal according to claim 11, which is characterized in that the acquisition subelement, suitable for the increasing sent from base station
Add in the corresponding RRC signaling of SCell, obtains the minimum system message of the corresponding cell.
14. terminal according to claim 10, which is characterized in that the judging unit, suitable for the increasing sent based on base station
Add the instruction information in the corresponding RRC signaling of SCell, judges whether System information block to be obtained is that the system of on-demand type disappears
Breath.
15. terminal according to claim 10, which is characterized in that first transmission unit includes:
First transmission sub-unit, suitable for passing through RRC signaling when System information block to be obtained is the system message of on-demand type
GAP solicited message is sent to base station；
Receiving subelement, suitable for receiving the RRC signaling comprising GAP information of base station feedback, the GAP information includes rising for GAP
Beginning time location and length；
It is to be obtained to request to its corresponding cell to be suitable for the transmission random access preamble in the GAP for second transmission sub-unit
System information block.
16. terminal according to claim 15, which is characterized in that the RRC signaling for sending GAP solicited message includes: wait obtain
Take the identification information of cell corresponding to system message, or the initial position GAP recommended and length.
17. terminal according to claim 10, which is characterized in that further include:
Second transmission unit is suitable for before first transmission unit sends random access preamble to its corresponding cell, excellent
First signal is transmitted to PCell or secondary cell.
18. terminal according to claim 17, which is characterized in that the signal of prioritised transmission includes: by PCell or auxiliary
The signal that cell corresponding PUCCH and PRACH are sent.
19. a kind of computer readable storage medium, is stored thereon with computer instruction, which is characterized in that the computer instruction
Perform claim requires the step of any one of 1 to 9 the method when operation.
20. a kind of terminal, including memory and processor, the meter that can be run on the processor is stored on the memory
Calculation machine instruction, which is characterized in that perform claim requires any one of 1 to 9 institute when the processor runs the computer instruction
The step of stating method.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711177665.XA CN109819525B (en) | 2017-11-22 | 2017-11-22 | Terminal, method for acquiring system message by terminal and readable medium |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711177665.XA CN109819525B (en) | 2017-11-22 | 2017-11-22 | Terminal, method for acquiring system message by terminal and readable medium |
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| CN109819525B (en) | 2021-03-19 |
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