WO2020259381A1 - 对lte系统消息的mib消息的处理方法、装置、基站及存储介质 - Google Patents

对lte系统消息的mib消息的处理方法、装置、基站及存储介质 Download PDF

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Publication number
WO2020259381A1
WO2020259381A1 PCT/CN2020/096765 CN2020096765W WO2020259381A1 WO 2020259381 A1 WO2020259381 A1 WO 2020259381A1 CN 2020096765 W CN2020096765 W CN 2020096765W WO 2020259381 A1 WO2020259381 A1 WO 2020259381A1
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Prior art keywords
lte
lte terminal
terminal
mib
establishment
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PCT/CN2020/096765
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English (en)
French (fr)
Inventor
陈潇
范学锋
王洪建
刘玉和
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中兴通讯股份有限公司
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Priority to EP20832605.8A priority Critical patent/EP3989609B1/en
Publication of WO2020259381A1 publication Critical patent/WO2020259381A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/12—Access restriction or access information delivery, e.g. discovery data delivery using downlink control channel
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
    • H04W4/70—Services for machine-to-machine communication [M2M] or machine type communication [MTC]

Definitions

  • This application relates to the field of communications, for example, to a method, device, base station, and storage medium for processing Master Information Block (MIB, MIB) messages of Long Term Evolution (LTE) system messages.
  • MIB Master Information Block
  • LTE Long Term Evolution
  • Enhancement Machine Type Communication is an important branch of the Internet of Everything technology, based on the evolution of the long-term evolution LTE protocol, in order to be more suitable for communication between things.
  • a typical application scenario of eMTC is deployment in a shared cell with an LTE terminal. At this time, the eMTC terminal and the LTE terminal share the same spectrum resource.
  • the schedulingInfoSIB1-BR-r13 information element is added to the main information block MIB in the system message, which is used to indicate the reduced bandwidth version of the system information block type 1 (SystemInformationBlockType1- Bandwidth Reduced, SIB1-BR) scheduling information.
  • the scheduling information is set in the reserved field (spare) in the MIB, but because some of the early-produced LTE terminals did not consider the above protocol extension, this type of terminal will do the schedulingInfoSIB1-BR-r13 cell in the MIB message and the subsequent spare part.
  • Non-zero check processing if the check succeeds, the subsequent SIB and other messages are decoded to access the corresponding cell, and if the check fails, the MIB message cannot be decoded normally, resulting in the LTE terminal unable to normally access the corresponding cell.
  • This application provides a method, device, base station, and storage medium for processing MIB messages of the master information block of LTE system messages to solve the problem that some LTE terminals in related technologies cannot access the cell normally because they cannot recognize MIB messages. problem.
  • This application provides a method for processing the MIB message of the long-term evolution LTE system message, including:
  • the access quantity information of the LTE terminal and the access quantity information of the eMTC terminal the number of MIB messages sent to the LTE terminal in the preset subframe is determined.
  • This application provides an apparatus for processing MIB messages of a long-term evolution LTE system message, including: an obtaining unit configured to obtain re-establishment information of LTE terminals in a cell, information on the number of LTE terminals accessed, and enhanced machine communication eMTC The access quantity information of the terminal; the processing unit is configured to determine the access quantity information of the LTE terminal on the preset subframe according to the reestablishment information of the LTE terminal, the access quantity information of the LTE terminal, and the access quantity information of the eMTC terminal. The number of MIB messages sent.
  • the present application also provides a computer-readable storage medium on which a computer program is stored.
  • the computer program is executed by a processor, the MIB message for the LTE system message described in any embodiment of the present application is realized. ⁇ Treatment methods.
  • the base station includes a memory, a processor, and a computer program that is stored on the memory and can run on the processor, and the computer program is executed when the processor is executed.
  • FIG. 1 is a flowchart of a method for processing MIB messages of LTE system messages according to the first embodiment of the present application
  • FIG. 2 is a schematic structural diagram of an apparatus for processing MIB messages of LTE system messages according to a second embodiment of the present application
  • FIG. 3 is a schematic structural diagram of another MIB message processing apparatus for LTE system messages provided by the second embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a processing unit provided by a second embodiment of the present application.
  • FIG. 5 is a schematic structural diagram of another MIB message processing apparatus for LTE system messages provided by the second embodiment of the present application.
  • FIG. 6 is a schematic structural diagram of another device for processing MIB messages of LTE system messages provided by the second embodiment of the present application.
  • this application provides a method for processing MIB messages of the main information block of LTE system messages.
  • the re-establishment situation and the access situation of the LTE terminal and the eMTC terminal are used to determine the transmission ratio of the LTE MIB message on subframe #0, and on the preset subframe according to the above transmission ratio, so that the base station performs MIB for the LTE terminal
  • the message is sent so that the LTE terminal can access the network normally.
  • the first embodiment of the present application provides a method for processing MIB messages of LTE system messages, which is applied to the base station side.
  • the flow of the method is shown in Fig. 1, and includes steps S101 to S102:
  • S101 Acquire re-establishment information of LTE terminals in a cell, access quantity information of LTE terminals, and access quantity information of enhanced machine communication eMTC terminals.
  • the network information collection database After the LTE cell is opened to support the eMTC function, the network information collection database records the relevant indicators of the cell's LTE terminal handover and re-establishment.
  • the base station uses the network information collection database to obtain the re-establishment information of the LTE terminals in the cell, LTE terminals and eMTC terminals The number of access information.
  • the re-establishment information of the LTE terminal described in the embodiment of this application is the abnormal information of the LTE terminal, that is, the schedulingInfoSIB1-BR-r13 information element in the MIB message and the subsequent reserved field spare part are subjected to non-zero verification processing. Information about the LTE terminal that was re-established due to handover failure.
  • the embodiment of the application is to obtain the re-establishment information of the LTE terminal in the cell, the access quantity information of the LTE terminal and the access quantity information of the eMTC terminal according to the preset period, and according to the access quantity of the LTE terminal and eMTC terminal
  • the information calculates the access ratio of LTE terminals.
  • the access ratio is represented by the symbol x, which refers to the number of LTE terminal accesses/(the number of LTE terminal accesses + the number of eMTC terminal accesses). That is to say, for ease of implementation, this embodiment of the present application performs data acquisition and determines the transmission ratio of LTE MIB messages according to a prescribed preset period.
  • the size of the preset period described in the embodiment of this application can be set according to needs, which is not limited in this application.
  • S102 Determine the number of MIB messages sent to the LTE terminal in a preset subframe according to the reestablishment information of the LTE terminal, the access quantity information of the LTE terminal, and the access quantity information of the eMTC terminal.
  • the embodiment of this application determines and adjusts the transmission ratio of LTE MIB messages on the preset subframe, ie, subframe #0, according to the re-establishment situation of the LTE terminal and the access quantity of the LTE terminal and the eMTC terminal. This can alleviate the problem of abnormal cell network indicators caused by abnormally accessed LTE terminals without affecting the access of eMTC terminals.
  • the main application scenario of the embodiment of the present application is: after the eMTC function is enabled on the LTE network, the schedulingInfoSIB1-BR-r13 information element is added to the MIB message to indicate the scheduling information of the SIB1 (SystemInformationBlockType1-BR) of the BR version.
  • the scheduling information is set on the reserved field spare in the MIB.
  • the reserved field spare in the MIB was originally 10 bits, and the length of the MIB message of protocol R13 and later versions has not changed. However, 5 bits in the original 10-bit reserved field spare are occupied by schedulingInfoSIB1-BR-r13, that is, when the value of schedulingInfoSIB1-BR-r13 is 0, it means that SystemInformationBlockType1-BR is not scheduled.
  • the schedulingInfoSIB1-BR-r13 field in the MIB message of the sent LTE terminal is 0; when the LTE cell supports the eMTC function, the schedulingInfoSIB1-BR-r13 in the MIB message of the eMTC terminal is sent The field is not 0. That is to say, the eMTC-specific field is to enable some bits of the original reserved field.
  • this The class terminal will perform a non-zero check on the schedulingInfoSIB1-BR-r13 cell and the subsequent spare part of the MIB message. If the check succeeds, the subsequent SIB and other messages will be decoded to access the corresponding cell. If the check fails, the MIB message cannot be decoded normally. , Which in turn causes these LTE terminals to fail to access the corresponding cell normally.
  • the LTE MIB message is only sent in subframes#0, while the eMTC MIB message can be repeatedly sent in the #9 subframe of the previous radio frame and the #0 subframe of the radio frame.
  • the base station determines the transmission ratio of LTE MIB messages on subframe #0 according to the re-establishment status of the LTE terminal and the access status of the LTE terminal and the eMTC terminal.
  • MIB messages are sent for LTE terminals, so that LTE terminals can access the network normally, which effectively solves the problem that some LTE terminals cannot access the cell normally because they cannot recognize MIB messages.
  • the embodiments of this application are aimed at, because early-produced terminals did not fully consider protocol extensions, the conditions for verification and judgment were parsed according to the original LTE MIB message, which resulted in some terminals not being able to access LTE cells that support eMTC. Therefore, in the embodiment of this application, the MIB message of LTE is sent on the network side to reduce the bit error rate of MIB message parsing by such terminals, so as to increase the access volume of abnormally connected LTE terminals as much as possible without affecting eMTC terminal access.
  • step S101 before step S102, that is, before determining the number of MIB messages sent to the LTE terminal in the preset subframe, in the current preset period, it is determined whether the average index of re-establishment of the LTE terminal exceeds The preset threshold. If the average index of LTE terminal re-establishment exceeds the preset threshold, it is determined to be in the preset according to the re-establishment information of the LTE terminal, the access quantity information of the LTE terminal, and the access quantity information of the eMTC terminal.
  • the number of MIB messages sent for LTE terminals in a subframe is determined whether the average index of LTE terminal exceeds The preset threshold. If the average index of LTE terminal re-establishment exceeds the preset threshold, it is determined to be in the preset according to the re-establishment information of the LTE terminal, the access quantity information of the LTE terminal, and the access quantity information of the eMTC terminal.
  • the embodiment of the present application first determines whether the average index of LTE terminal re-establishment in the preset period exceeds the preset threshold M, and if the average index of LTE terminal re-establishment exceeds the preset threshold, then according to the LTE
  • the re-establishment information of the terminal and the access quantity information of the LTE terminal and eMTC terminal determine the transmission ratio of the MIB message of LTE on subframe #0.
  • the embodiment of the present application sets a preset threshold as the starting condition for determining whether to start determining the transmission ratio of LTE MIB messages on subframe #0, and sets a reasonable preset threshold so as not to affect eMTC. In the case of normal access of the terminal, the abnormal access of the LTE terminal is reduced.
  • Step S102 in the embodiment of the present application includes:
  • the predistortion coefficient according to the average index of re-establishment of the LTE terminal, the preset threshold, the access ratio of the LTE terminal, and the bit error rate of the LTE terminal non-zero check, and based on the predistortion
  • the coefficient and the number of MIB messages sent to the LTE terminal in the preset subframe in the last preset period are calculated, and the number of MIB messages sent to the LTE terminal in the preset subframe in the current preset period is calculated; wherein, the LTE
  • the access ratio of the terminal is the ratio of the access number of the LTE terminal to the access number of the eMTC terminal.
  • the embodiment of this application determines the predistortion coefficient based on the average index of re-establishment of the LTE terminal, the preset threshold M, the access ratio of the LTE terminal, and the bit error rate of the LTE terminal non-zero check, and then According to the predistortion coefficient and the transmission ratio of the LTE MIB message on the current subframe #0, the adjusted transmission ratio of the LTE MIB message on the subframe #0 is calculated. That is to say, the transmission ratio of LTE MIB messages on subframe #0 determined in the embodiment of the application is a real-time adjusted value. The ratio of LTE MIB messages and eMTC MIB messages is adjusted in real time to control LTE terminals. The abnormal access rate is within an acceptable range.
  • the schedulingInfoSIB1-BR-r13 information element in the MIB message occupies 5 bits of the reserved field spare in the MIB
  • the schedulingInfoSIB1-BR-r13 information element in the MIB message occupies 1 bit of the reserved field spare in the MIB
  • the error rate of the non-zero check of the LTE terminal is 1/5*100%, which is 20%. That is, the bit error rate of the non-zero check of the LTE terminal in the embodiment of the present application is the ratio of the number of digits of the reserved field spare occupied by the r13 cell.
  • the bit error rate of the non-zero check of the LTE terminal is: the ratio of the number of bits in the reserved field of the MIB message occupied by the protocol R13 cell to the total number of bits in the reserved field; the protocol R13 The number of bits in the reserved field of the MIB message occupied by the cell is obtained from the protocol mapping information table.
  • the predistortion coefficient is determined according to the average index of re-establishment of the LTE terminal, the preset threshold M, the access ratio of the LTE terminal, and the bit error rate of the LTE terminal non-zero check , Including: determining the weight value of the transmission ratio of the MIB message of the LTE terminal according to the average index of the re-establishment of the LTE terminal and the preset threshold M; according to the access ratio of the LTE terminal and the non-zero calibration of the LTE terminal Calculate an adjustment coefficient based on the verified bit error rate; and determine the predistortion coefficient based on the weight value and the adjustment coefficient.
  • the embodiment of this application first determines the weight value and adjustment coefficient of the transmission ratio of the MIB message of the LTE terminal, and then calculates the predistortion coefficient according to the weight value and the adjustment coefficient of the transmission ratio of the MIB message of the LTE terminal, and finally based on the predistortion coefficient Calculate the adjusted transmission ratio of the LTE MIB message on the subframe #0 with the transmission ratio of the LTE MIB message on the current subframe #0.
  • the calculated LTE MIB message sending ratio ⁇ % is s*z.
  • the method further includes: determining whether the number of MIB messages sent by the eMTC terminal in the current preset period If the preset number threshold is exceeded, if the number of MIB messages sent by the eMTC terminal in the current preset period exceeds the preset number threshold, the MIB message delivery continues according to the number of MIB messages sent by the LTE terminal determined in the previous preset period.
  • the embodiment of this application is to adjust the transmission ratio of LTE MIB messages in subframe #0 in real time, and adjust the transmission ratio to an optimal value, that is, the cell network index caused by abnormally connected LTE terminals reaches Within the acceptable range (ie, the preset threshold M).
  • the method further includes: while determining the number of MIB messages sent to the LTE terminal in the preset subframe, adjusting the distribution form of the MIB message transmission; adjusting the MIB after the distribution form
  • the message is sent according to the determined sending quantity, and the distribution form includes a random distribution form and a uniform distribution form. That is to say, in the embodiment of this application, the transmission ratio of LTE MIB messages on subframe #0 is set according to the above method. After determining the transmission ratio of LTE MIB messages, the distribution form of MIB message transmission needs to be adjusted.
  • the distributed form of MIB message transmission is adapted to the receiving characteristics of different terminals.
  • the LTE MIB messages are equally divided among the eMTC MIB messages and sent, and when the random distribution form is adopted, the LTE MIB messages are randomly sent among the eMTC MIB messages.
  • the LTE MIB message and the eMTC MIB message are sent in a certain transmission ratio and a certain distribution form on the subframe #0.
  • the second embodiment of the present application provides an apparatus for processing a master information block MIB message of a Long Term Evolution LTE system message.
  • the apparatus includes an acquisition unit and a processing unit that are coupled to each other.
  • the acquiring unit is configured to acquire the re-establishment information of the LTE terminal in the cell, the access quantity information of the LTE terminal, and the access quantity information of the enhanced machine communication eMTC terminal.
  • the obtaining unit in the embodiment of the present application obtains the re-establishment information of the LTE terminal in the cell and the access quantity information of the LTE terminal and the eMTC terminal through the network information collection database.
  • the re-establishment information of the LTE terminal described in the embodiment of this application is the abnormal information of the LTE terminal, that is, the schedulingInfoSIB1-BR-r13 information element in the MIB message and the subsequent reserved field spare part are subjected to non-zero verification processing. Information about the LTE terminal that was re-established due to handover failure.
  • the processing unit is configured to determine the number of MIB messages sent to the LTE terminal in a preset subframe according to the re-establishment information of the LTE terminal, the access quantity information of the LTE terminal, and the access quantity information of the eMTC terminal.
  • the processing unit described in the embodiment of this application determines the MIB message of the LTE terminal on subframe #0 based on the reestablishment information of the LTE terminal, the access quantity information of the LTE terminal, and the access quantity information of the eMTC terminal. Quantity sent.
  • the processing unit of the embodiment of the present application determines and adjusts the transmission ratio of LTE MIB messages on subframe #0 according to the re-establishment situation of LTE terminals and the number of LTE terminals and eMTC terminals. This can alleviate the problem of abnormal cell network indicators caused by abnormally accessed LTE terminals without affecting the access of eMTC terminals.
  • FIG. 3 is a schematic structural diagram of another device for processing MIB messages of LTE system messages according to an embodiment of this application.
  • the device further includes a first determining unit; the first determining unit is set to be preset During the period, determine whether the average index of LTE terminal re-establishment exceeds the preset threshold, and if the average index of LTE terminal re-establishment exceeds the preset threshold, trigger the processing unit, and if the average index of LTE terminal re-establishment does not exceed the preset threshold , Triggering the sending unit, wherein the average index of re-establishment is the quotient of the number of re-establishment of LTE terminals in the cell within a preset period and the total number of handovers of LTE terminals; the sending unit is set to be based on the first The judgment unit is triggered to send MIB messages according to the number of MIB messages sent by the LTE terminal determined in the last preset period.
  • a preset threshold is set, and the preset threshold is used as the starting condition for determining whether to start determining the transmission ratio of LTE MIB messages on subframe #0, and by setting a reasonable preset The threshold is used to reduce abnormal access of LTE terminals without affecting the normal access of eMTC terminals.
  • the acquiring unit is configured to acquire the re-establishment information of the LTE terminal, the access quantity information of the LTE terminal, and the access quantity information of the eMTC terminal in the cell according to a preset period.
  • the processing unit in the embodiment of the present application is set according to the average index of re-establishment of the LTE terminal, the preset threshold M, the access ratio of the LTE terminal, and the error of the non-zero check of the LTE terminal.
  • Code rate determine the predistortion coefficient, and based on the predistortion coefficient and the number of MIB messages sent to the LTE terminal in the preset subframe in the last preset period, calculate the pairing on the preset subframe in the current preset period
  • the number of MIB messages sent by the LTE terminal That is to say, the transmission ratio of LTE MIB messages on subframe #0 determined in the embodiment of the application is a real-time adjusted value.
  • the ratio of LTE MIB messages and eMTC MIB messages is adjusted in real time to control LTE terminals.
  • the abnormal access rate is within an acceptable range.
  • the schedulingInfoSIB1-BR-r13 information element in the MIB message occupies 5 bits of the reserved field spare in the MIB
  • the schedulingInfoSIB1-BR-r13 information element in the MIB message occupies 1 bit of the reserved field spare in the MIB
  • the error rate of the non-zero check of the LTE terminal is 1/5*100%, which is 20%. That is, the bit error rate of the non-zero check of the LTE terminal in the embodiment of the application is the ratio of r13 cells occupying the reserved field spare. The higher the number of digits of the reserved field spare of r13 cells, the error rate of the non-zero check of the LTE terminal The bit rate increases accordingly.
  • the processing unit in the embodiment of the present application is configured to use the following methods according to the average index of re-establishment of the LTE terminal, the preset threshold, the access ratio of the LTE terminal, and the non-zero check of the LTE terminal Determine the predistortion coefficient: determine the weight value of the transmission ratio of the MIB message of the LTE terminal according to the average index of re-establishment of the LTE terminal and the preset threshold M; according to the access of the LTE terminal Calculating the adjustment coefficient based on the ratio and the bit error rate of the non-zero check of the LTE terminal; and determining the predistortion coefficient based on the weight value and the adjustment coefficient.
  • the embodiment of this application first determines the weight value and adjustment coefficient of the transmission ratio of the MIB message of the LTE terminal, and then calculates the predistortion coefficient according to the weight value and the adjustment coefficient of the transmission ratio of the MIB message of the LTE terminal, and finally based on the predistortion coefficient Calculate the adjusted transmission ratio of the LTE MIB message on the subframe #0 with the transmission ratio of the LTE MIB message on the current subframe #0.
  • the bit error rate of the non-zero check of the LTE terminal described in the embodiment of this application is: the ratio of the number of bits in the reserved field of the MIB message occupied by the protocol R13 cell to the total number of bits in the reserved field; the protocol R13 described in the embodiment of this application The number of bits in the reserved field of the MIB message occupied by the cell is obtained from the protocol mapping information table.
  • the processing unit described in the embodiment of the present application includes: a first processing module, a second processing module, and a third processing module.
  • the device further includes a second determining unit; the second determining unit is configured to determine whether the number of MIB messages sent by the eMTC terminal in the current preset period exceeds the preset number threshold, If the number of MIB messages sent by the eMTC terminal in the current preset period exceeds the preset number threshold, the sending unit is triggered to continue to send MIB messages according to the number of MIB messages sent by the LTE terminal determined in the previous preset period. Assuming that the number of MIB messages sent by the eMTC terminal in the period does not exceed the preset number threshold, the sending unit is triggered to send the MIB messages of the LTE terminal according to the currently determined sending number.
  • the embodiment of this application is to adjust the transmission ratio of LTE MIB messages in subframe #0 in real time, and adjust the transmission ratio to an optimal value, that is, the cell network index caused by abnormally connected LTE terminals reaches an acceptable range ( That is, within the preset threshold M). Also, it is necessary to ensure that the proportion of MIB messages sent by eMTC does not exceed the preset threshold to ensure the normal access of eMTC terminals. If the proportion of MIB messages corresponding to LTE terminals determined by the above method affects the normal access of eMTC terminals, jump out Perform the procedure to re-determine the proportion of MIB message delivery for LTE.
  • the sending unit of the device in the embodiment of the present application is further configured to adjust the distribution form of the MIB message transmission, and send the MIB messages after the adjusted distribution form according to the determined transmission quantity, wherein the distribution form includes random distribution Form and uniform distribution form. That is to say, in the embodiment of this application, the transmission ratio of LTE MIB messages on subframe #0 is set according to the above method. After the transmission ratio of LTE MIB messages is determined, the distribution form of MIB message transmission should be adjusted.
  • the distributed form of MIB message transmission is adapted to the receiving characteristics of different terminals.
  • the LTE MIB messages are equally divided among the eMTC MIB messages and sent, and when the random distribution form is adopted, the LTE MIB messages are randomly sent among the eMTC MIB messages.
  • the LTE MIB message and the eMTC MIB message are sent in a certain transmission ratio and a certain distribution form on the subframe #0.
  • the information extraction module (equivalent to the above-mentioned acquisition unit in this embodiment of the application) extracts LTE terminal access abnormal information and eMTC and LTE terminal access information from the network information collection database, and calculates the preset period (this parameter can be The data in (setting) is counted, and after reaching the preset period, it is sent to the feedback data analysis module.
  • the abnormal information described in the embodiment of this application is: after the LTE cell is opened to support the eMTC function, the handover or re-establishment related indicators of the cell are recorded, if the LTE terminal handover is calculated within a preset period T If the average index exceeds the preset threshold, it is determined that the cell is abnormal, and the abnormal information and the transmission ratio of the MIB message of the last cycle of LTE are recorded and fed back, and this is used as the basis for determining the subsequent predistortion coefficient.
  • the determination module determines whether the average index of LTE terminal re-establishment in the preset period exceeds the preset threshold, and if the average index of LTE terminal re-establishment exceeds the preset threshold , Then go to the next step, if the average index of the LTE terminal re-establishment does not exceed the preset threshold, the end; the feedback data analysis module (equivalent to the above-mentioned first processing module in this embodiment of the application) analyzes the data fed back by the information extraction module And calculate the weight of the transmission ratio of LTE MIB message and eMTC MIB message on subframe #0; According to the occupancy of the SIB1-BR scheduling field (schedulingInfoSIB1-BR-r13) in the reserved bits in the eMTC MIB message, calculate The possible bit error rate of abnormal LTE terminal non-zero check (here, bit error rate, is the probability of discarding when
  • This part of the function is equivalent to the function of the second processing module mentioned in the embodiment of this application; the information integration module (equivalent to the third processing module mentioned in the embodiment of this application), according to the calculated proportional weight value and calculation Combining the real-time data information changes with the adjusted coefficients obtained, integrate the two to calculate the pre-distortion coefficient.
  • the LTE MIB message transmission ratio ⁇ % is finally obtained.
  • the eMTC MIB message transmission ratio (1- ⁇ %) in subframe #0 exceeds the preset threshold H, if (1- ⁇ %) %) If this threshold is exceeded, the MIB messages of LTE and eMTC will continue to be issued according to the transmission ratio of the previous cycle, but the predistortion effect can be achieved by adjusting different distribution forms, and the network indicators of the next cycle can be tracked to see if it can reach a certain level Effect: If (1- ⁇ %) does not exceed the preset threshold, the LTE and eMTC MIB messages are sent according to the currently calculated sending ratio and distribution form.
  • the information extraction module extracts the abnormal value of the average index of the LTE terminal re-establishment of the cell and the access ratio of the LTE terminal and the eMTC terminal; the determination module determines that the cell has not enabled the eMTC function and continues to send LTE MIB messages normally; or if the cell network is average
  • the indicators are normal and continue to send system messages according to the proportion and distribution of the previous period. If the MIB transmission ratio of LTE in the previous period is not 0, keep this transmission ratio and continue to send LTE MIB messages. If the MIB message transmission ratio of the LTE in the previous cycle is 0, the eMTC MIB message continues to be sent normally.
  • the ratio of MIB message sending of LTE is adjusted, including:
  • the information extraction module extracts the abnormal value of the cell network average index and the access ratio of LTE terminals and eMTC terminals.
  • the judgment module determines that the average network index of the cell is abnormal, transmits the average network index of the current cell and the access ratio of multiple terminals, and enters the feedback data analysis module.
  • the feedback data analysis module transparently transmits the access ratios of multiple terminals, and calculates the weight value ⁇ that needs to be added to adjust the transmission ratio caused by abnormal indicators, which is the current abnormal ratio exceeding the preset threshold M, and the current cell network average indicator is i, the preset threshold value M, the weight value ⁇ that needs to be increased is ((iM)/M)*100%.
  • the adjustment coefficient module calculates the possible bit error rate of abnormal LTE terminal non-zero check, and calculates the adjustment coefficient based on the current network access ratio of eMTC and LTE terminals.
  • the calculation method of the adjustment coefficient is: the current LTE terminal access ratio is x, the bit error rate is y, and the adjustment coefficient ⁇ is x*y.
  • the adaptive predistortion system continues to send system messages according to the transmission ratio of the previous cycle, but can send LTE and eMTC MIB messages according to the transmission ratio of the previous cycle by adjusting the distribution form of transmission, and continue to track network indicators; such as (1- ⁇ %) does not exceed the preset threshold H, then the LTE and eMTC MIB messages are sent according to the currently calculated sending ratio and the current distribution form.
  • Each cycle is adjusted in real time according to the feedback result, and the cycle is repeated until the preset threshold is reached or the preset threshold is exceeded.
  • the third embodiment of the present application provides a computer-readable storage medium with a computer program stored on the computer storage medium, and when the computer program is executed by a processor, it implements the LTE system as described in any embodiment of the present application.
  • the MIB message processing method of the message The content can be understood with reference to the embodiments of the present application, and will not be discussed here.
  • the fourth embodiment of the present application provides a base station.
  • the base station includes a memory, a processor, and a computer program stored on the memory and running on the processor, and the computer program is executed by the processor.
  • the method described in any embodiment of the present application is implemented.
  • the content can be understood with reference to the embodiments of the present application, and will not be discussed here.

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Abstract

本文公开了一种对LTE系统消息的主信息块MIB消息的处理方法、装置、基站及存储介质。所述对LTE系统消息的MIB消息的处理方法包括：获取小区内LTE终端的重建立信息、LTE终端的接入数量信息和eMTC终端的接入数量信息；根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和所述eMTC终端的接入数量信息，确定在预设子帧上对LTE终端的MIB消息的发送数量。

Description

对LTE系统消息的MIB消息的处理方法、装置、基站及存储介质
本申请要求在2019年06月27日提交中国专利局、申请号为201910565875.9的中国专利申请的优先权，该申请的全部内容通过引用结合在本申请中。
技术领域
本申请涉及通讯领域，例如涉及一种对长期演进(Long Term Evolution，LTE)系统消息的主信息块(Master Information Block，MIB，MIB)消息的处理方法、装置、基站及存储介质。
背景技术
增强机器通信(Enhancement Machine Type Communication，eMTC)是万物互联技术的一个重要分支，基于长期演进LTE协议演进而来，为了更加适合物与物之间的通信。eMTC的典型应用场景为与LTE终端共小区部署，此时eMTC终端与LTE终端共享同一个频谱资源。一般可以通过基站软件升级，在LTE小区上打开eMTC功能，相应小区就可以同时为eMTC终端和LTE终端提供服务。
在LTE网络开通eMTC功能后，相比传统LTE网络，系统消息中的主信息块MIB中，新增了schedulingInfoSIB1-BR-r13信元，用于指示降带宽版本的系统信息块类型1(SystemInformationBlockType1-Bandwidth Reduced，SIB1-BR)的调度信息。该调度信息设置在MIB中保留字段(spare)上，但由于部分早期生产的LTE终端中未考虑上述协议扩展，所以这类终端会对MIB消息中schedulingInfoSIB1-BR-r13信元及后续spare部分做非0校验处理，校验成功则解码后续的SIB等消息接入对应小区，校验失败则无法正常解码该MIB消息，从而导致LTE终端无法正常接入对应小区。
发明内容
本申请提供了一种对LTE系统消息的主信息块MIB消息的处理方法、装置、基站及存储介质，用以解决相关技术中一些LTE终端由于无法识别MIB消息而导致其不能正常接入小区的问题。
本申请提供一种对长期演进LTE系统消息的主信息块MIB消息的处理方法，包括：
获取小区内LTE终端的重建立信息、LTE终端的接入数量信息和增强机器通信eMTC终端的接入数量信息；
根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和eMTC终端的接入数量信息，确定在预设子帧上对LTE终端的MIB消息的发送数量。
本申请提供一种对长期演进LTE系统消息的主信息块MIB消息的处理装置，包括：获取单元，设置为获取小区内LTE终端的重建立信息、LTE终端的接入数量信息和增强机器通信eMTC终端的接入数量信息；处理单元，设置为根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和eMTC终端的接入数量信息，确定在预设子帧上对LTE终端的MIB消息的发送数量。
本申请还提供了一种计算机可读存储介质，所述计算机存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现本申请任一实施例所述的对LTE系统消息的MIB消息的处理方法。
本申请提供了一种基站，所述基站包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现本申请任一实施例所述的对LTE系统消息的MIB消息的处理方法。
附图说明
图1是本申请第一实施例提供的一种对LTE系统消息的MIB消息的处理方法的流程图；
图2是本申请第二实施例提供的一种对LTE系统消息的MIB消息的处理装置的结构示意图；
图3是本申请第二实施例提供的另一种对LTE系统消息的MIB消息的处理装置的结构示意图；
图4是本申请第二实施例提供的一种处理单元的结构示意图；
图5是本申请第二实施例提供的再一种对LTE系统消息的MIB消息的处理装置的结构示意图；
图6是本申请第二实施例提供的又一种对LTE系统消息的MIB消息的处理装置的结构示意图。
具体实施方式
为了解决相关技术中，一些LTE终端由于无法识别MIB消息而导致其不能正常接入小区的问题，本申请提供了一种对LTE系统消息的主信息块MIB消息的处理方法，通过根据LTE终端的重建立情况、以及LTE终端和eMTC终端的接入情况，来确定在子帧#0上LTE的MIB消息的发送比例，并按上述发送比例在预设子帧上，使得基站针对LTE终端进行MIB消息发送，从而实现LTE 终端能够正常接入网络。以下结合附图以及实施例，对本申请进行说明。此处所描述的具体实施例仅仅用以解释本申请，并不限定本申请。
本申请第一实施例提供了一种对LTE系统消息的MIB消息的处理方法，应用于基站侧，该方法的流程如图1所示，包括步骤S101至S102：
S101，获取小区内LTE终端的重建立信息、LTE终端的接入数量信息和增强机器通信eMTC终端的接入数量信息。
在LTE小区开通支持eMTC功能后，通过网络信息采集数据库记录该小区的LTE终端切换和重建立的相关指标，基站通过网络信息采集数据库来获取小区内LTE终端的重建立信息，LTE终端和eMTC终端的接入数量信息。
本申请实施例所述的LTE终端的重建立信息，即为LTE终端的异常信息，也就是对MIB消息中schedulingInfoSIB1-BR-r13信元及后续保留字段spare部分做非0校验处理，校验失败，而导致的切换失败进行重建立的LTE终端的信息。
本申请实施例是按预设周期获取小区内的LTE终端的重建立信息、以及LTE终端的接入数量信息和eMTC终端的接入数量信息，并根据所述LTE终端和eMTC终端的接入数量信息计算LTE终端的接入比例。该接入比例用符号x表示，是指LTE终端接入数量/(LTE终端接入数量+eMTC终端接入数量)。也就是说，为了便于实施，本申请实施例是按照规定的预设周期来进行数据获取和确定LTE的MIB消息的发送比例的。
本申请实施例所述的预设周期的大小可以根据需要进行设置，本申请对此不作限定。
S102，根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和eMTC终端的接入数量信息，确定在预设子帧上对LTE终端的MIB消息的发送数量。
本申请实施例是根据LTE终端的重建立情况，以及LTE终端和eMTC终端的接入数量情况，来确定和调整在预设子帧即，子帧#0上，LTE的MIB消息的发送比例，以在不影响eMTC终端接入的同时，缓解异常接入的LTE终端引起的小区网络指标异常的问题。
本申请实施例的主要应用场景是：在LTE网络开通eMTC功能后，由于在MIB消息中增加了schedulingInfoSIB1-BR-r13信元，用于指示BR版本的SIB1(SystemInformationBlockType1-BR)的调度信息。该调度信息设置在MIB中保留字段spare上，MIB中保留字段spare原来为10比特，协议R13及之后版本的MIB消息的长度并没有变。但原来10比特的保留字段spare中的5比特被schedulingInfoSIB1-BR-r13占用，即，当schedulingInfoSIB1-BR-r13取值为0时， 表示不调度SystemInformationBlockType1-BR，当LTE小区不支持eMTC功能时，该部分信元填写为0。可以理解为，当LTE小区不支持eMTC功能时，发送LTE终端的MIB消息中schedulingInfoSIB1-BR-r13字段为0；当LTE小区支持eMTC功能时，发送eMTC终端的MIB消息中的schedulingInfoSIB1-BR-r13字段不为0。也就是说，eMTC特有字段是将原来的保留字段的部分比特位启用，由于部分早期生产的LTE终端中未考虑第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)R13协议的扩展，所以这类终端会对MIB消息中schedulingInfoSIB1-BR-r13信元及后续spare部分做非0校验处理，校验成功则解码后续的SIB等消息接入对应小区，校验失败则无法正常解码该MIB消息，进而导致这些LTE终端无法正常接入对应小区。
由于此类LTE终端的特殊性，在网络中部分小区或频段开通支持eMTC功能后，此类LTE终端的用户能够接入的小区会显著减少，用户体验会随之下降；网络侧的切换和重建立等网络性能指标也会显著变化，严重的话有可能会引发大量用户投诉，甚至会影响eMTC的部署进程。
而在时域上，LTE的MIB消息只在子帧subframes#0上发送，而eMTC的MIB消息可以在前一个无线帧的#9子帧和该无线帧的#0子帧进行重复发送。
本申请实施例通过基站根据LTE终端的重建立情况、以及LTE终端和eMTC终端的接入情况，来确定在子帧#0上LTE的MIB消息的发送比例，即在子帧#0上按一定比例针对LTE终端进行MIB消息发送，从而实现LTE终端正常接入网络，进而有效解决了部分LTE终端由于无法识别MIB消息而导致其不能正常接入小区的问题。
本申请实施例所针对的是，由于早期生产的终端没有充分考虑协议扩展，校验判断的条件是按照原来LTE的MIB消息来解析的，从而导致部分终端无法接入开通支持eMTC功能的LTE小区，所以本申请实施例在网络侧增加发送LTE的MIB消息，以此来降低此类终端解析MIB消息的误码率，以尽可能的提高异常接入LTE终端的接入量，同时又不影响eMTC终端接入。
本申请实施例在步骤S101之后，在步骤S102之前，即确定在预设子帧上对LTE终端的MIB消息的发送数量之前，在当前预设周期内，判断LTE终端重建立的平均指标是否超过预设阈值，如果LTE终端重建立的平均指标超过预设阈值，则根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和eMTC终端的接入数量信息，确定在预设子帧上对LTE终端的MIB消息的发送数量，如果LTE终端重建立的平均指标不超过预设阈值，继续按照上一预设周期内确定的LTE终端的MIB消息的发送数量进行MIB消息的发送。也就是说，本申请实施例要先判断所述预设周期内的LTE终端重建立的平均指标是否超过 预设阈值M，如果LTE终端重建立的平均指标超过预设阈值，则根据所述LTE终端的重建立信息、所述LTE终端和eMTC终端的接入数量信息，确定在子帧#0上LTE的MIB消息的发送比例，如果LTE终端重建立的平均指标不超过预设阈值，继续按照当前LTE在MIB消息的发送比例发送MIB消息；其中，所述重建立的平均指标为预设周期内的小区内LTE终端的重建立数/LTE终端的总切换数。可以理解为，本申请实施例通过设置一个预设阈值来作为是否开始确定在子帧#0上LTE的MIB消息的发送比例的启动条件，通过设置一个合理的预设阈值，以在不影响eMTC终端正常接入的情况下，降低LTE终端的异常接入。
本申请实施例步骤S102包括：
根据所述LTE终端的重建立的平均指标、所述预设阈值、所述LTE终端的接入比例、以及LTE终端非零校验的误码率，确定预失真系数，并基于所述预失真系数与上一个预设周期内的预设子帧上对LTE终端的MIB消息的发送数量，计算当前预设周期内在预设子帧上对LTE终端的MIB消息的发送数量；其中，所述LTE终端的接入比例为所述LTE终端的接入数量与所述eMTC终端的接入数量的比值。
本申请实施例是基于LTE终端的重建立的平均指标、所述预设阈值M、所述LTE终端的接入比例，以及LTE终端非零校验的误码率，来确定预失真系数，然后根据这个预失真系数和当前子帧#0上LTE的MIB消息的发送比例计算调整后在子帧#0上LTE的MIB消息的发送比例。也就是说，本申请实施例所确定的在子帧#0上LTE的MIB消息的发送比例是一个实时调整的数值，通过实时调整LTE的MIB消息和eMTC的MIB消息的比例，从而控制LTE终端的异常接入率在一个可以接受的范围内。
本申请实施例中，由于MIB消息中schedulingInfoSIB1-BR-r13信元占据了MIB中保留字段spare的5比特，当MIB消息中schedulingInfoSIB1-BR-r13信元占据了MIB中保留字段spare的1比特位，则LTE终端非零校验的误码率为1/5*100％，即为20％。即，本申请实施例的LTE终端非零校验的误码率为r13信元占据保留字段spare的位数的比例值，r13信元占据保留字段spare的位数越高，LTE终端非零校验的误码率则随之增加。也就是说，本申请实施例所述LTE终端非零校验的误码率为：协议R13信元占用了MIB消息的保留字段的位数与保留字段的总位数的比值；所述协议R13信元占用MIB消息的保留字段的位数是从协议映射信息表中获取的。
本申请实施例中，根据所述LTE终端的重建立的平均指标、所述预设阈值M、所述LTE终端的接入比例，以及LTE终端非零校验的误码率，确定预失真 系数，包括：根据所述LTE终端的重建立的平均指标和所述预设阈值M，确定LTE终端的MIB消息的发送比例的权重值；根据所述LTE终端的接入比例和LTE终端非零校验的误码率，计算调整系数；并基于所述权重值和所述调整系数确定所述预失真系数。
本申请实施例是先确定LTE终端的MIB消息的发送比例的权重值以及调整系数，然后根据LTE终端的MIB消息的发送比例的权重值以及调整系数计算得到预失真系数，最后基于该预失真系数和当前子帧#0上LTE的MIB消息的发送比例计算调整后在子帧#0上LTE的MIB消息的发送比例。
本申请实施例中，根据所述LTE终端的重建立的平均指标和所述预设阈值M，确定LTE终端的MIB消息的发送比例的权重值，包括：所述权重值λ＝((i-M)/M)*100％；其中，i为所述LTE终端的重建立的平均指标，M为所述预设阈值。
根据所述LTE终端的接入比例和LTE终端非零校验的误码率，计算调整系数，包括：所述调整系数α＝x*y；其中，x为LTE终端的接入数量/(LTE终端的接入数量+eMTC终端的接入数量)，y为所述LTE终端非零校验的误码率。
本申请实施例基于所述权重值和所述调整系数确定所述预失真系数，包括：根据所述调整系数α和所述权重值λ，计算出本预设预设周期的预失真系数s＝α*(1+λ)。
假设当前LTE的MIB消息发送比例为z，则计算得到的LTE的MIB消息发送比例Δ％为s*z。
本申请实施例步骤S102之后，即所述确定在预设子帧上对LTE终端的MIB消息的发送数量之后，所述方法还包括：判断当前预设周期内eMTC终端的MIB消息的发送数量是否超过预设数量门限，如果当前预设周期内eMTC终端的MIB消息的发送数量超过预设数量门限，则继续按照上一预设周期确定的LTE终端的MIB消息的发送数量进行MIB消息下发。
判断当按照确定的发送比例进行LTE的MIB消息发送时，eMTC的MIB消息的发送比例(1-Δ％)是否超过预设门限，如果eMTC的MIB消息的发送比例(1-Δ％)超过预设门限，则继续按照上一预设周期的发送比例进行LTE的MIB消息下发。也就是说，本申请实施例是要实时调整在子帧#0上LTE的MIB消息的发送比例，将该发送比例调整到一个最优值，即异常接入的LTE终端引起的小区网络指标达到可接受范围(即，预设阈值M)内。而且还要保证eMTC的MIB消息发送比例未超过预设门限，从而确保eMTC终端的正常接入，如果上述方法确定的LTE终端对应的MIB消息的比例，影响了eMTC终端的正 常接入，则跳出执行程序，重新确定LTE的MIB消息下发比例。
本申请实施例中，所述方法，还包括：在确定在预设子帧上对LTE终端的MIB消息的发送数量的同时，调整所述MIB消息发送的分布形式；将调整分布形式后的MIB消息按照确定的发送数量进行发送，所述分布形式包括随机分布形式和均匀分布形式。也就是说，本申请实施例在子帧#0上LTE的MIB消息的发送比例是按照上述方法进行设置，在确定LTE的MIB消息发送比例后，还要调整MIB消息发送的分布形式，通过调整MIB消息发送的分布形式来适应不同终端的接收特性。
当采用均匀分布形式时，则将LTE的MIB消息均分在eMTC的MIB消息中进行发送，而当采用随机分布形式时，则将LTE的MIB消息在eMTC的MIB消息之间进行随机发送。
本申请实施例是在子帧#0上按一定发送比例和一定分布形式发送LTE的MIB消息和eMTC的MIB消息。
本申请第二实施例提供了一种对长期演进LTE系统消息的主信息块MIB消息的处理装置，参见图2，该装置包括相互耦合的获取单元和处理单元。
获取单元，设置为获取小区内LTE终端的重建立信息、LTE终端的接入数量信息和增强机器通信eMTC终端的接入数量信息。
本申请实施例的获取单元是通过网络信息采集数据库来获取小区内LTE终端的重建立信息，LTE终端和eMTC终端的接入数量信息。
本申请实施例所述的LTE终端的重建立信息，即为LTE终端的异常信息，也就是对MIB消息中schedulingInfoSIB1-BR-r13信元及后续保留字段spare部分做非0校验处理，校验失败，而导致的切换失败进行重建立的LTE终端的信息。
处理单元，设置为根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和eMTC终端的接入数量信息，确定在预设子帧上对LTE终端的MIB消息的发送数量。
本申请实施例所述处理单元是根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和eMTC终端的接入数量信息，确定在子帧#0上LTE终端的MIB消息的发送数量。
也就是说，本申请实施例的处理单元是根据LTE终端的重建立情况，以及LTE终端和eMTC终端的接入数量情况，来确定和调整在子帧#0上LTE的MIB消息的发送比例，以在不影响eMTC终端接入的同时，缓解异常接入的LTE终 端引起的小区网络指标异常的问题。
如图3所示为本申请实施例另一种对LTE系统消息的MIB消息的处理装置的结构示意图，所述装置还包括第一判断单元；所述第一判断单元，设置为在当前预设周期内，判断LTE终端重建立的平均指标是否超过预设阈值，如果LTE终端重建立的平均指标超过预设阈值，则触发所述处理单元，如果LTE终端重建立的平均指标不超过预设阈值，触发发送单元，其中，所述重建立的平均指标为预设周期内的小区内LTE终端的重建立数与LTE终端的总切换数之商；所述发送单元，设置为根据所述第一判断单元的触发，按照上一预设周期内确定的LTE终端的MIB消息的发送数量进行MIB消息的发送。也就是说，本申请实施例通过设置一个预设阈值，并将该预设阈值来作为是否开始确定在子帧#0上LTE的MIB消息的发送比例的启动条件，通过设置一个合理的预设阈值，以在不影响eMTC终端正常接入的情况下，降低LTE终端的异常接入。本实施例中，所述获取单元，是设置为按预设周期获取小区内的LTE终端的重建立信息、LTE终端的接入数量信息和eMTC终端的接入数量信息。
本申请实施例中所述处理单元，是设置为根据所述LTE终端的重建立的平均指标、所述预设阈值M、所述LTE终端的接入比例，以及LTE终端非零校验的误码率，确定预失真系数，并基于所述预失真系数与上一个预设周期内的预设子帧上对LTE终端的MIB消息的发送数量，计算当前预设周期内在预设子帧上对LTE终端的MIB消息的发送数量。也就是说，本申请实施例所确定的在子帧#0上LTE的MIB消息的发送比例是一个实时调整的数值，通过实时调整LTE的MIB消息和eMTC的MIB消息的比例，从而控制LTE终端的异常接入率在一个可以接受的范围内。
本申请实施例中，由于MIB消息中schedulingInfoSIB1-BR-r13信元占据了MIB中保留字段spare的5比特，当MIB消息中schedulingInfoSIB1-BR-r13信元占据了MIB中保留字段spare的1比特位，则LTE终端非零校验的误码率为1/5*100％，即为20％。即，本申请实施例的LTE终端非零校验的误码率为r13信元占据保留字段spare的比例值，r13信元占据保留字段spare的位数越高，LTE终端非零校验的误码率则随之增加。
本申请实施例中所述处理单元，是设置为通过如下方式根据所述LTE终端的重建立的平均指标、所述预设阈值、所述LTE终端的接入比例，以及LTE终端非零校验的误码率，确定预失真系数：根据所述LTE终端的重建立的平均指标和所述预设阈值M，确定LTE终端的MIB消息的发送比例的权重值；根据所述LTE终端的接入比例和LTE终端非零校验的误码率，计算调整系数；基于所述权重值和所述调整系数确定所述预失真系数。
本申请实施例是先确定LTE终端的MIB消息的发送比例的权重值以及调整系数，然后根据LTE终端的MIB消息的发送比例的权重值以及调整系数计算得到预失真系数，最后基于该预失真系数和当前子帧#0上LTE的MIB消息的发送比例计算调整后在子帧#0上LTE的MIB消息的发送比例。
本申请实施例所述LTE终端非零校验的误码率为：协议R13信元占用了MIB消息的保留字段的位数与保留字段的总位数的比值；本申请实施例所述协议R13信元占用MIB消息的保留字段的位数是从协议映射信息表中获取的。
如图4所示，本申请实施例所述处理单元包括：第一处理模块、第二处理模块和第三处理模块。
所述第一处理模块设置为，计算权重值λ＝((i-M)/M)*100％；其中，i为所述LTE终端的重建立的平均指标，M为所述预设阈值。
所述第二处理模块设置为，计算所述调整系数α＝x*y；其中，x为LTE终端的接入数量/(LTE终端的接入数量+eMTC终端的接入数量)，y为所述LTE终端非零校验的误码率。
所述第三处理模块设置为，根据所述调整系数α和所述权重值λ，计算出本预设周期的预失真系数s＝α*(1+λ)。
如图5所示，本申请实施例所述装置还包括第二判断单元；所述第二判断单元，设置为判断当前预设周期内eMTC终端的MIB消息的发送数量是否超过预设数量门限，如果当前预设周期内eMTC终端的MIB消息的发送数量超过预设数量门限，则触发发送单元继续按照上一预设周期确定的LTE终端的MIB消息的发送数量进行MIB消息下发，如果当前预设周期内eMTC终端的MIB消息的发送数量不超过预设数量门限，触发所述发送单元按照当前确定的发送数量进行LTE终端的MIB消息发送。
本申请实施例是要实时调整在子帧#0上LTE的MIB消息的发送比例，将该发送比例调整到一个最优值，即异常接入的LTE终端引起的小区网络指标达到可接受范围(即，预设阈值M)内。而且还要保证eMTC的MIB消息发送比例未超过预设门限，从而确保eMTC终端的正常接入，如果上述方法确定的LTE终端对应的MIB消息的比例，影响了eMTC终端的正常接入，则跳出执行程序，重新确定LTE的MIB消息下发比例。
本申请实施例所述装置的发送单元还设置为，调整所述MIB消息发送的分布形式，并将调整分布形式后的MIB消息按照确定的发送数量进行发送，其中，所述分布形式包括随机分布形式和均匀分布形式。也就是说，本申请实施例在子帧#0上LTE的MIB消息的发送比例是按照上述方法进行设置，在确定LTE 的MIB消息发送比例后，还要调整MIB消息发送的分布形式，通过调整MIB消息发送的分布形式来适应不同终端的接收特性。
当采用均匀分布形式时，则将LTE的MIB消息均分在eMTC的MIB消息中进行发送，而当采用随机分布形式时，则将LTE的MIB消息在eMTC的MIB消息之间进行随机发送。
本申请实施例是在子帧#0上按一定发送比例和一定分布形式发送LTE的MIB消息和eMTC的MIB消息。
为了对本申请实施例所述的装置进行解释和说明，下面将结合图6通过一个实施例对本申请进行说明：
通过信息提取模块(相当于本申请实施例上述的获取单元)从网络信息采集数据库中，提取LTE终端接入异常信息以及eMTC和LTE终端接入情况信息，并对预设周期(该参数可进行设置)内的数据进行统计，到达预设周期后，发送给反馈数据分析模块。也就是说，本申请实施例所述的异常信息为：在LTE小区开通支持eMTC功能后，记录该小区的切换或重建立相关指标，若计算出的一个预设周期T内，LTE终端切换的平均指标超过预设阈值，则判定该小区为异常，记录并反馈异常信息和上个周期的LTE的MIB消息的发送比例，并以此作为确定之后预失真系数的依据。
记录每一个预设周期内的相关数据信息(包括异常信息和终端接入情况)，并进行统计求出平均值。
通过判定模块(相当于本申请实施例上述的第一判断单元)判断所述预设周期内的LTE终端重建立的平均指标是否超过预设阈值，如果LTE终端重建立的平均指标超过预设阈值，则进入下一步，如果LTE终端重建立的平均指标不超过预设阈值，结束；反馈数据分析模块(相当于本申请实施例上述的第一处理模块)根据信息提取模块反馈的数据，进行分析并计算出LTE的MIB消息和eMTC的MIB消息在子帧#0上的发送比例权重；根据eMTC的MIB消息中SIB1-BR的调度字段(schedulingInfoSIB1-BR-r13)在保留位的占用情况，计算出异常LTE终端非0校验的可能出现的误码率(此处误码率，即为当终端对MIB消息校验失败而丢弃的概率)，结合当前网络接入eMTC和LTE终端的比例，推算出调整系数，该部分功能相当于本申请实施例上述的第二处理模块的功能；信息整合模块(相当于本申请实施例上述的第三处理模块)，根据计算出的比例权重值和计算出的调整系数，并结合实时的数据信息变化，将两者整合计算得到预失真系数。
根据预失真系数最终得到LTE的MIB消息发送比例Δ％，此时需要判断 eMTC的MIB消息在子帧#0上的发送比例(1-Δ％)是否超过预设门限H，若(1-Δ％)超过此门限则继续按照上周期的发送比例进行LTE和eMTC的MIB消息下发，但是可以通过调整不同的分布形式，实现预失真效果，并跟踪下个周期的网络指标看是否可以达到一定效果；如果(1-Δ％)未超过预设门限，则按照当前计算得到的发送比例和分布形式发送LTE和eMTC的MIB消息。
当一个预设周期内的小区未开启eMTC或LTE终端重建立的平均指标未超过预设阈值，不进行预失真处理，继续发送当前系统消息。
下面将通过两个应用实施例对本申请实施例所述的装置进行说明：
第一应用实施例
信息提取模块，提取小区LTE终端重建立的平均指标的异常值和LTE终端和eMTC终端的接入比例；判定模块，判定小区未开启eMTC功能则继续正常发送LTE的MIB消息；或者如果小区网络平均指标正常，继续按照上周期的比例和分布形式发送系统消息。如果上周期的LTE的MIB发送比例不为0，则保持此发送比例继续发送LTE的MIB消息。如果上周期的LTE的MIB消息发送比例为0，则继续正常发送eMTC的MIB消息。
第二应用实施例
当一个预设周期内的小区网络平均指标超过预设阈值，则调整LTE的MIB消息发送比例，包括：
信息提取模块，提取小区网络平均指标的异常值和LTE终端和eMTC终端的接入比例。
判定模块，判定小区网络平均指标异常，传递当前小区网络平均指标和多个终端的接入比例，进入反馈数据分析模块。
反馈数据分析模块，透传多个终端的接入比例，计算异常指标引起的需要调整发送比例的需要增加的权重值λ，即为当前超出预设阈值M的异常比例，当前小区网络平均指标为i，预设阈值M，则需要增加的权重值λ为((i-M)/M)*100％。
调整系数模块，计算出异常LTE终端非0校验的可能出现的误码率，结合当前网络接入eMTC和LTE终端的比例，推算出调整系数。调整系数的计算方式为：当前LTE终端接入比例为x，误码率为y，则调整系数α为x*y。
信息整合模块，根据调整系数α和权重值λ，计算出此周期的预失真系数s。计算方式：预失真系数s＝α*(1+λ)。例如：当前LTE的MIB消息发送比例为z，则计算得到的LTE的MIB消息发送比例Δ％为s*z。
此时要判定eMTC的MIB消息发送比例(1-Δ％)，是否已经超出预设门限H，如(1-Δ％)超出预设门限H，不论网络指标是否达到预设阈值M都要退出自适应预失真系统，继续按照上周期的发送比例发送系统消息，但是可以通过调整发送的分布形式按照上周期的发送比例发送LTE和eMTC的MIB消息，并继续跟踪网络指标；如(1-Δ％)未超过预设门限H，则按照当前计算的发送比例和当前分布形式进行LTE和eMTC的MIB消息的发送。
以上为一个预设周期的实施实例，每个周期根据反馈结果实时通过进行调整，循环往复进行，直到达到预设阈值或超过预设门限跳出此循环。
本申请第三实施例提供了一种计算机可读存储介质，所述计算机存储介质上存储有计算机程序，所述计算机程序被处理器执行时实现如本申请任一实施例所述的对LTE系统消息的MIB消息的处理方法。内容可参照本申请实施例部分进行理解，在此不做论述。
本申请第四实施例提供了一种基站，所述基站包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如本申请任一实施例所述的方法。内容可参照本申请实施例部分进行理解，在此不做论述。

Claims (24)

  1. 一种对长期演进LTE系统消息的主信息块MIB消息的处理方法，包括：
    获取小区内LTE终端的重建立信息、LTE终端的接入数量信息和增强机器通信eMTC终端的接入数量信息；
    根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和所述eMTC终端的接入数量信息，确定在预设子帧上对LTE终端的MIB消息的发送数量。
  2. 根据权利要求1所述的方法，其中，所述预设子帧包括：子帧#0。
  3. 根据权利要求1所述的方法，其中，所述获取小区内LTE终端的重建立信息、LTE终端的接入数量信息和eMTC终端的接入数量信息，包括：
    按预设周期获取所述小区内的所述LTE终端的重建立信息、所述LTE终端的接入数量信息和所述eMTC终端的接入数量信息；
    在所述获取小区内LTE终端的重建立信息、LTE终端的接入数量信息和增强机器通信eMTC终端的接入数量信息之后，在所述确定在预设子帧上对LTE终端的MIB消息的发送数量之前，还包括：
    在当前预设周期内，判断LTE终端重建立的平均指标是否超过预设阈值，响应于所述LTE终端重建立的平均指标超过所述预设阈值，根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和所述eMTC终端的接入数量信息，确定在预设子帧上对LTE终端的MIB消息的发送数量，响应于所述LTE终端重建立的平均指标不超过预设阈值，按照上一预设周期内确定的LTE终端的MIB消息的发送数量进行MIB消息的发送；
    其中，所述重建立的平均指标为预设周期内的所述小区内LTE终端的重建立数与LTE终端的总切换数之商。
  4. 根据权利要求3所述的方法，其中，所述根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和所述eMTC终端的接入数量信息，确定在预设子帧上对LTE终端的MIB消息的发送数量，包括：
    根据所述LTE终端的重建立的平均指标、所述预设阈值、LTE终端的接入比例、以及LTE终端非零校验的误码率，确定预失真系数，并基于所述预失真系数与上一个预设周期内的预设子帧上对LTE终端的MIB消息的发送数量，计算当前预设周期内在预设子帧上对LTE终端的MIB消息的发送数量；
    其中，所述LTE终端的接入比例为所述LTE终端的接入数量与所述eMTC终端的接入数量的比值。
  5. 根据权利要求4所述的方法，其中，所述LTE终端非零校验的误码率为： 协议R13信元占用了MIB消息的保留字段的位数与所述保留字段的总位数的比值；所述协议R13信元占用MIB消息的保留字段的位数是从协议映射信息表中获取的。
  6. 根据权利要求4所述的方法，其中，所述根据所述LTE终端的重建立的平均指标、所述预设阈值、LTE终端的接入比例，以及LTE终端非零校验的误码率，确定预失真系数，包括：
    根据所述LTE终端的重建立的平均指标和所述预设阈值，确定LTE终端的MIB消息的发送数量的权重值；
    根据所述LTE终端的接入比例和所述LTE终端非零校验的误码率，计算调整系数；
    基于所述权重值和所述调整系数确定所述预失真系数。
  7. 根据权利要求6所述的方法，其中，所述根据所述LTE终端的重建立的平均指标和所述预设阈值，确定LTE终端的MIB消息的发送数量的权重值，包括：
    所述权重值λ＝((i-M)/M)*100％；
    其中，i为所述LTE终端的重建立的平均指标，M为所述预设阈值。
  8. 根据权利要求6所述的方法，其中，所述根据所述LTE终端的接入比例和所述LTE终端非零校验的误码率，计算调整系数，包括：
    所述调整系数α＝x*y；
    其中，x为所述LTE终端的接入数量/(所述LTE终端的接入数量+所述eMTC终端的接入数量)，y为所述LTE终端非零校验的误码率。
  9. 根据权利要求6所述的方法，其中，所述基于所述权重值和所述调整系数确定所述预失真系数，包括：
    计算出当前预设周期的预失真系数s＝α*(1+λ)，其中，α为所述调整系数，λ为所述权重值。
  10. 根据权利要求1-9中任一项所述的方法，在所述确定在预设子帧上对LTE终端的MIB消息的发送数量之后，还包括：
    判断当前预设周期内eMTC终端的MIB消息的发送数量是否超过预设数量门限，响应于当前预设周期内所述eMTC终端的MIB消息的发送数量超过所述预设数量门限，按照上一预设周期确定的LTE终端的MIB消息的发送数量进行MIB消息下发，响应于当前预设周期内所述eMTC终端的MIB消息的发送数量不超过所述预设数量门限，按照当前确定的发送数量进行LTE终端的MIB消息 发送。
  11. 根据权利要求1所述的方法，在所述确定在预设子帧上对LTE终端的MIB消息的发送数量的同时，还包括：
    调整所述MIB消息发送的分布形式；
    将调整分布形式后的MIB消息按照确定的发送数量进行发送，其中，所述分布形式包括随机分布形式和均匀分布形式。
  12. 一种对长期演进LTE系统消息的主信息块MIB消息的处理装置，包括：
    获取单元，设置为获取小区内LTE终端的重建立信息、LTE终端的接入数量信息和增强机器通信eMTC终端的接入数量信息；
    处理单元，设置为根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和所述eMTC终端的接入数量信息，确定在预设子帧上对LTE终端的MIB消息的发送数量。
  13. 根据权利要求12所述的装置，其中，
    所述处理单元，是设置为根据所述LTE终端的重建立信息、所述LTE终端的接入数量信息和所述eMTC终端的接入数量信息，确定在子帧#0上所述LTE终端的MIB消息的发送数量。
  14. 根据权利要求12所述的装置，其中，
    所述获取单元，是设置为按预设周期获取所述小区内的所述LTE终端的重建立信息、所述LTE终端的接入数量信息和所述eMTC终端的接入数量信息；
    所述装置还包括：
    所述第一判断单元，设置为在当前预设周期内，判断LTE终端重建立的平均指标是否超过预设阈值，响应于所述LTE终端重建立的平均指标超过所述预设阈值，触发所述处理单元，响应于所述LTE终端重建立的平均指标不超过预设阈值，触发发送单元，其中，所述重建立的平均指标为预设周期内的小区内LTE终端的重建立数与LTE终端的总切换数之商；
    所述发送单元，设置为根据所述第一判断单元的触发，按照上一预设周期内确定的LTE终端的MIB消息的发送数量进行MIB消息的发送。
  15. 根据权利要求14所述的装置，其中，
    所述处理单元，是设置为根据所述LTE终端的重建立的平均指标、所述预设阈值M、LTE终端的接入比例，以及LTE终端非零校验的误码率，确定预失真系数，并基于所述预失真系数与上一个预设周期内的预设子帧上对LTE终端 的MIB消息的发送数量，计算当前预设周期内在预设子帧上对LTE终端的MIB消息的发送数量；
    其中，所述LTE终端的接入比例为所述LTE终端的接入数量与所述eMTC终端的接入数量的比值。
  16. 根据权利要求15所述的装置，其中，所述LTE终端非零校验的误码率为：协议R13信元占用了MIB消息的保留字段的位数与所述保留字段的总位数的比值；所述协议R13信元占用MIB消息的保留字段的位数是从协议映射信息表中获取的。
  17. 根据权利要求15所述的装置，其中，
    所述处理单元，是设置为通过如下方式根据所述LTE终端的重建立的平均指标、所述预设阈值、所述LTE终端的接入比例，以及LTE终端非零校验的误码率，确定预失真系数：根据所述LTE终端的重建立的平均指标和所述预设阈值M，确定LTE终端的MIB消息的发送数量的权重值；根据所述LTE终端的接入比例和所述LTE终端非零校验的误码率，计算调整系数；基于所述权重值和所述调整系数确定所述预失真系数。
  18. 根据权利要求17所述的装置，其中，所述处理单元包括：第一处理模块；
    所述第一处理模块，设置为计算权重值λ＝((i-M)/M)*100％；其中，i为所述LTE终端的重建立的平均指标，M为所述预设阈值。
  19. 根据权利要求17所述的装置，其中，所述处理单元包括：第二处理模块；
    所述第二处理模块，设置为计算所述调整系数α＝x*y；其中，x为所述LTE终端的接入数量/(所述LTE终端的接入数量+所述eMTC终端的接入数量)，y为所述LTE终端非零校验的误码率。
  20. 根据权利要求17所述的装置，其中，所述处理单元包括：第三处理模块；
    所述第三处理模块，设置为根据所述调整系数α和所述权重值λ，计算出当前预设周期的预失真系数s＝α*(1+λ)。
  21. 根据权利要求12-20中任一项所述的装置，还包括：
    第二判断单元，设置为判断当前预设周期内eMTC终端的MIB消息的发送数量是否超过预设数量门限，响应于当前预设周期内所述eMTC终端的MIB消息的发送数量超过所述预设数量门限，触发发送单元按照上一预设周期确定的 LTE终端的MIB消息的发送数量进行MIB消息下发，响应于当前预设周期内所述eMTC终端的MIB消息的发送数量不超过所述预设数量门限，触发所述发送单元按照当前确定的发送数量进行LTE终端的MIB消息发送。
  22. 根据权利要求12所述的装置，还包括：
    发送单元，设置为调整所述MIB消息发送的分布形式，并将调整分布形式后的MIB消息按照确定的发送数量进行发送，其中，所述分布形式包括随机分布形式和均匀分布形式。
  23. 一种计算机可读存储介质，存储有计算机程序，所述计算机程序被处理器执行时实现如权利要求1至11中任一项所述的对长期演进LTE系统消息的主信息块MIB消息的处理方法。
  24. 一种基站，包括：存储器、处理器及存储在所述存储器上并可在所述处理器上运行的计算机程序，所述计算机程序被所述处理器执行时实现如权利要求1至11中任一项所述的对长期演进LTE系统消息的主信息块MIB消息的处理方法。
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