WO2019028914A1 - 一种系统消息的指示方法、装置及系统 - Google Patents

一种系统消息的指示方法、装置及系统 Download PDF

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Publication number
WO2019028914A1
WO2019028914A1 PCT/CN2017/097270 CN2017097270W WO2019028914A1 WO 2019028914 A1 WO2019028914 A1 WO 2019028914A1 CN 2017097270 W CN2017097270 W CN 2017097270W WO 2019028914 A1 WO2019028914 A1 WO 2019028914A1
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WIPO (PCT)
Prior art keywords
information
system message
notification information
message
notification
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Application number
PCT/CN2017/097270
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English (en)
French (fr)
Inventor
汲桐
单宝堃
金哲
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华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to CN201780093854.0A priority Critical patent/CN110999436B/zh
Priority to PCT/CN2017/097270 priority patent/WO2019028914A1/zh
Priority to EP17920757.6A priority patent/EP3661276B1/en
Publication of WO2019028914A1 publication Critical patent/WO2019028914A1/zh
Priority to US16/787,582 priority patent/US11026162B2/en

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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
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H04W48/10—Access restriction or access information delivery, e.g. discovery data delivery using broadcasted information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0225—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal
    • H04W52/0229—Power saving arrangements in terminal devices using monitoring of external events, e.g. the presence of a signal where the received signal is a wanted signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W68/00—User notification, e.g. alerting and paging, for incoming communication, change of service or the like
    • H04W68/005—Transmission of information for alerting of incoming communication
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Definitions

  • the present application relates to the field of communications technologies, and in particular, to a method, device, and system for indicating system messages.
  • the 3rd Generation Partnership Project (3GPP) standard is based on cellular networks.
  • 3GPP 3rd Generation Partnership Project
  • IoT Internet of Things
  • NB-IoT Narrow Band-Internet of Things
  • the NB-IoT network services generate smaller data packets, longer data transmission periods, and lower cost of the NB-IoT terminal equipment.
  • a large number of terminal devices may exist under one NB-IoT base station to implement mass deployment of terminal devices.
  • the NB-IoT base station when the system message is changed, the NB-IoT base station notifies the terminal device by direct indication or paging message, and the direct indication may exist on the physical downlink control channel (Physical).
  • the paging message In the Downlink Control Channel (PDCCH), the paging message may exist in a Physical Downlink Shared Channel (PDSCH).
  • the terminal device After receiving the change notification, the terminal device re-reads the contents of the Master Information Block (MIB) and System Information Block 1 (SIB1) and selectively reads the contents of other system messages. .
  • MIB Master Information Block
  • SIB1 System Information Block 1
  • the terminal device since only part of the content of the content in the MIB and the SIB1 is frequently changed, and the remaining fields are relatively stable, the terminal device re-reads all the contents of the MIB and the SIB1 every time, and the work efficiency is low.
  • the narrowband technology is adopted in the NB-IoT, the delay time for the terminal device to read the system message is large, and the power consumption is large and the cost is large. It can be seen that the existing system message change process of NB-IoT has optimization space and needs.
  • the method, the device and the system for indicating the system message provided by the embodiment of the present application are used to reduce the delay of the terminal device to update the system message and reduce the power consumption.
  • an embodiment of the present application provides a method for indicating a system message, including:
  • the network device generates notification information, where the notification information is used to indicate status information of the first information in the first system message, and send the notification information to the terminal device.
  • the first information includes at least one bit in the first system message, and the first information includes a number of bits smaller than a number of bits included in the first system message. Therefore, the terminal device can no longer need to read the entire content of the changed first system message, and can update the locally stored first system message according to the notification information, which is beneficial to reducing the delay of the terminal device updating the first system message, and reducing the work. Consumption.
  • the first information can be set to the information that is frequently changed in the first system message, which can reduce the probability that the terminal device reads the changed first system message, and also helps the terminal device to update the delay of the first system message and reduce the delay. Power consumption.
  • the notification information is used to indicate the status information of the first information, including: Instructing whether the first information occurs, and/or indicating the value of the first information. In this way, different status information of the first system can be adapted to adapt to different changes of the first system message.
  • the notification information is further used to indicate whether the second information is changed, and the second information includes at least one bit of the first system message other than the first information.
  • the terminal device may determine whether to update the locally stored first system message according to the notification information according to whether the second information is changed, or to update the locally stored first system message according to the changed first system message.
  • the first system message is a MIB
  • the first information includes information that changes frequently in the MIB, for example, the first information includes a first tag value, a system frame number, a first superframe number, and SIB1 scheduling information. At least one of them.
  • the first information may include the first label value
  • the second information may be at least one bit in the MIB except the first label value, and may specifically include a system frame number, and/or a first superframe number, and / or SIB1 scheduling information, and / or other information.
  • the notification information can be set to contain 5 bits, and the 5 bits are used to indicate the value of the first tag value.
  • the notification information may further include 1 bit, which is used to indicate whether other information is changed in the MIB except the first tag value.
  • the first information may further include the first label value and the system frame number
  • the second information may include the first superframe number, and/or SIB1 scheduling information, and/or other information. And so on.
  • the content specifically included in the first information and the second information, and the specific content included in the notification information are not limited in the embodiment of the present application.
  • the first system message is SIB1
  • the first information includes information that is frequently changed in the SIB1, for example, the first information includes at least a second tag value, a second superframe number, and a second SI scheduling information.
  • the first information includes at least a second tag value, a second superframe number, and a second SI scheduling information.
  • the first information may include the second label value
  • the second information may be at least one bit of the SIB1 except the second label value, and specifically may include the second superframe number, and/or the second SI scheduling information. , and / or other information.
  • SIB1 can call up to 8 second SIs, and each second SI corresponds to one second label value, each second label value includes 2 bits. Therefore, the notification information can be set to contain N*2 bits, where N is the number of second SIs included in SIB1.
  • the notification information may be set to indicate the value of the second tag value corresponding to one second SI in the SIB1 every 2 bits.
  • the notification information may also be set to include N bits, where each bit is used to indicate whether a second tag value corresponding to a second SI in the SIB1 is changed.
  • the notification information may further include a bit indicating whether there is any change in SIB1 other than the second tag value.
  • the first information may further include the second label value and the second super frame number, and the second information may be the second SI scheduling information, and/or other information.
  • the content specifically included in the first information and the second information, and the specific content included in the notification information are not limited in the embodiment of the present application.
  • the network device may carry the notification information by using a dedicated message or a dedicated channel or a dedicated signal, or may carry the notification information by using an existing message or a channel or a signal, for example, may be carried by a direct indication message or a paging message. Notification information.
  • the network device periodically sends the first system message. If the network device changes the first system message in the current period, it sends a direct indication message or a paging message to the terminal device in the service area in the next system message change period, and carries the notification information in the direct indication message or the paging message.
  • the notification information is used to indicate the value of the first tag value, and/or the notification information is used to indicate whether the second information in the first system message other than the first tag value has changed.
  • the first tag value can be understood as the version number of the MIB, when the system is eliminated
  • the first tag value will change, that is, the probability of the first tag value being changed is high. Therefore, the first information can be set to include the first tag value, and the notification information is used to indicate the value of the first tag value.
  • the notification information may be carried in the direct indication message. Since the first tag value in the MIB contains 5 bits, 5 bits out of the unused bits in the direct indication message can be used to indicate the value of the first tag value in the MIB. It should be noted that the 5 bits herein are only an example, and the embodiment of the present application does not limit the specific number of bits indicating the value of the first information.
  • the first information is set to the first tag value, and the MIB is excluded from the first tag value.
  • At least one bit is set to the second information, and may specifically include a system frame number, and/or a first superframe number, and/or SIB1 scheduling information, and/or other information.
  • the notification information is used to indicate the first tag value change content, and whether the second information other than the first tag value is changed.
  • one bit of the unused bits in the direct indication message may be used to indicate whether the second information in the MIB is changed. If the value of the bit is "0", it indicates that the second information in the MIB has not changed. If the value of the bit is "1", it indicates that the second information in the MIB has changed.
  • the SIB1 scheduling information in the MIB may also be changed.
  • the first information may be set to the first label value and the SIB1 scheduling information, where the notification information includes a value indicating the value of the first label and the value of the SIB1 scheduling information.
  • a special message may be added to carry the notification information. 5 bits are used to indicate the value of the first tag value, where 4 bits are used to indicate the value of the SIB1 scheduling information. It should be noted that the 5 bits and 4 bits are merely examples.
  • the embodiment of the present application does not limit the specific number of bits indicating the value of the first information and the value of the second information.
  • one bit can be used to indicate whether there is any change in the MIB other than the first label value and the SIB1 scheduling information.
  • the setting method can refer to the above description, and details are not repeatedly described.
  • the embodiment of the present application provides a method for indicating system information, including: receiving, by a terminal device, notification information sent by a network device, and updating content of the locally stored first system message according to the notification information.
  • the notification information is used to indicate status information of the first information, and the first information includes at least one bit in the first system message, and the first information includes a number of bits smaller than the number of bits included in the first system information.
  • the terminal device updates the content of the first information in the locally stored first system message to the value of the first information in the notification information.
  • the terminal device may continue to receive the changed first system message sent by the network device, or may not receive the changed first system message sent by the network device, which is not limited in this embodiment.
  • the terminal device receives the first system message after the change is sent, and changes the locally stored first system message according to the received first system message. Corresponding content.
  • the terminal device first determines whether the second information has changed. If the notification information indicates that the second information has not changed, the terminal device directly updates the content of the first information in the locally stored first system message according to the notification information. If the notification information indicates that the second information is changed, the terminal device receives the changed first system message, and updates the locally stored first system message according to the changed first system message.
  • the notification information is used to indicate the status information of the first information, including: the notification information is used for The value of the first information is indicated, and/or the notification information is used to indicate whether the first information has changed.
  • the notification information is further used to indicate whether the second information is changed, and the second information includes at least one bit of the first system message except the first information.
  • the terminal device reads the value of the first information in the notification information, and is used to update the value of the first information in the locally stored first system message.
  • the terminal device receives the changed first system message, and Updating the content of the locally stored first system message according to the changed first system message.
  • the first system message is an MIB
  • the first information includes at least one of a first tag value, a system frame number, a first superframe number, and SIB1 scheduling information.
  • the first system message is SIB1
  • the first information includes at least one of a second tag value, a second superframe number, and second system message scheduling information.
  • the terminal device receives the direct indication message sent by the network device, and the direct indication message carries the notification information, or the terminal device receives the paging message sent by the network device, where the paging message carries the notification information.
  • the notification information is used to indicate the value of the first tag value, and/or the notification information is used to indicate whether the information in the first system message other than the first tag value has changed.
  • the embodiment of the present application provides a network device that sends a system message indication, including: a processor and a transceiver; a processor, configured to generate notification information, where the notification information is used to indicate status information of the first information, where The information includes at least one bit in the first system message, the first information includes a smaller number of bits than the first system message includes, and the transceiver is configured to send the processor-generated notification information to the terminal device.
  • the notification information is used to indicate the status information of the first information
  • the notification information is used to indicate whether the first information is changed
  • the notification information is used to indicate the value of the first information.
  • the notification information is further used to indicate whether the second information is changed, and the second information includes at least one bit of the first system message except the first information.
  • the first system message is a main information block MIB or a system information block SIB1.
  • the first system message is an MIB
  • the first information includes at least one of a first tag value, a system frame number, a first superframe number, and SIB1 scheduling information.
  • the first system message is SIB1
  • the first information includes at least one of a second tag value, a second superframe number, and second system message scheduling information.
  • the transceiver is configured to send a direct indication message to the terminal device, directly indicating that the message carries the notification information generated by the processor, or the transceiver is configured to send the paging message to the terminal device, and the paging message carries Notification information generated by the processor.
  • the notification information is used to indicate the value of the first tag value; and/or the notification information is used to indicate whether at least one bit of the first system message is changed except the first tag value.
  • the embodiment of the present application provides a terminal device that receives a system message indication, including: a processor, a memory, and a transceiver; the transceiver is configured to receive notification information sent by the network device, where the notification information is used to indicate the first information.
  • the first information includes at least one bit in the first system message, the first information includes a number of bits smaller than the number of bits included in the first system message, and the processor is configured to change according to the notification information received by the transceiver The content of the first system message stored by the memory.
  • the notification information is used to indicate the status information of the first information
  • the notification information is used to indicate the value of the first information
  • the notification information is used to indicate whether the first information is changed.
  • the notification information is further used to indicate whether the second information is changed, and the second information includes at least one bit of the first system message except the first information.
  • the processor is further configured to read the value of the first information in the notification information.
  • the processor is configured to: if the notification information indicates that the first information is changed, and/or the notification information indicates that the second information is changed, change the first system message stored in the memory according to the first system message. content.
  • the first system message is a main information block MIB or a system information block SIB1.
  • the first system message is an MIB
  • the first information includes at least one of a first tag value, a system frame number, a first superframe number, and SIB1 scheduling information.
  • the first system message is SIB1
  • the first information includes at least one of a second tag value, a second superframe number, and second system message scheduling information.
  • the transceiver is configured to receive a direct indication message sent by the network device, directly indicating that the message carries the notification information, or the transceiver is configured to receive the paging message sent by the network device, and the paging message carries the notification information.
  • the notification information is used to indicate the value of the first tag value; and/or the notification information is used to indicate whether at least one bit of the first system message is changed except the first tag value.
  • an embodiment of the present invention provides a base station, where the base station has a function of implementing a behavior of a base station in the actual method.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the structure of the base station includes a processor and a transmitter configured to support the base station to perform the corresponding functions in the above methods.
  • the transmitter is configured to support communication between the base station and the UE, and send information or instructions involved in the foregoing method to the UE.
  • the base station can also include a memory for coupling with the processor that stores the necessary program instructions and data for the base station.
  • an embodiment of the present invention provides a UE, where the UE has a function of implementing UE behavior in the foregoing method design.
  • the functions may be implemented by hardware or by corresponding software implemented by hardware.
  • the hardware or software includes one or more modules corresponding to the functions described above.
  • the modules can be software and/or hardware.
  • the UE includes a receiver and a processor, and the receiver is configured to support the UE to receive the first DRX long period configured by the base station for the UE, the second DRX long period, activate the DRX indication, or Deactivate various commands such as DRX indication.
  • the processor controls the UE to deactivate the DRX indication according to the first DRX long period received by the receiver, or the second DRX long period to receive the paging.
  • the embodiment of the present application provides a computer readable storage medium, where the computer readable storage medium stores instructions that, when run on a computer, enable the computer to perform the first aspect or the second aspect described above.
  • the embodiment of the present application provides a computer program product comprising instructions, when executed on a computer, to enable a computer to execute the system message according to any one of the first aspect or the second aspect Instructions.
  • a communication device may be a network device in the above method design, or a chip disposed in the network device.
  • the communication device includes a memory for storing computer executable program code, a communication interface, and a processor coupled to the memory and the communication interface.
  • the program code stored in the memory includes instructions which, when executed by the processor, cause the communication device to perform the method performed by the network device in any of the possible aspects of the second aspect or the second aspect above.
  • a communication device may be a network device in the above method design, or a chip disposed in the network device.
  • the communication device includes a memory for storing computer executable program code, a communication interface, and a processor coupled to the memory and the communication interface.
  • the program code stored in the memory includes instructions which, when executed by the processor, cause the communication device to perform the method performed by the network device in any of the possible aspects of the third aspect or the third aspect above.
  • the embodiment of the present application provides a system message indication system, where the system message indication system includes the network device according to the above third aspect and the terminal device according to the fourth aspect.
  • the embodiment of the present invention provides a method, a device, and a system for indicating a system message. If the network device changes the first system message, the network device generates notification information, where the notification information is used to indicate status information of the first information, where the first information is At least one bit in the first system message, and sending the notification information to the terminal device. Then, the terminal device can update the locally stored first system message according to the notification information. Compared with the prior art, the network device only sends a notification that the first system message is changed to the terminal device, and after receiving the notification, the terminal device still needs to read all the contents of the changed first system message, and the working efficiency. Low, long delay.
  • the terminal device can update the locally stored first system message according to the notification information, which is beneficial to reducing the terminal device.
  • the probability of reading the entire contents of the first system message after the change is beneficial to improve the working efficiency of the terminal device, reduce the delay, reduce the power consumption, and save the cost.
  • FIG. 1 is a network architecture diagram of a communication system according to an embodiment of the present application
  • FIG. 2 is a schematic structural diagram of a network device and a terminal device according to an embodiment of the present disclosure
  • FIG. 3 is a flowchart of a method for indicating a system message according to an embodiment of the present disclosure
  • FIG. 4 is a schematic flowchart of still another method for indicating a system message according to an embodiment of the present disclosure
  • FIG. 5 is a schematic flowchart of still another method for indicating a system message according to an embodiment of the present disclosure
  • FIG. 6 is a schematic structural diagram of a network device according to an embodiment of the present disclosure.
  • FIG. 7 is a schematic structural diagram of a terminal device according to an embodiment of the present disclosure.
  • a communication system 10 is provided in an embodiment of the present application, where the communication system includes a network device 20 and a terminal device 30.
  • the network device 20 is configured to send a system message to the terminal device 30, so that the terminal device 30 can send data according to the system message delivered by the network device 20.
  • the network device 20 may be a base station or a base station controller or the like for wireless communication.
  • the base station can be a Global System for Mobile (Global System for Mobile) Communication, GSM) or Base Transceiver Station (BTS) in Code Division Multiple Access (CDMA), or base station in Wideband Code Division Multiple Access (WCDMA) (NodeB)
  • GSM Global System for Mobile
  • BTS Base Transceiver Station
  • CDMA Code Division Multiple Access
  • WCDMA Wideband Code Division Multiple Access
  • NodeB Wideband Code Division Multiple Access
  • eNB evolved base station
  • e-NodeB evolutional Node B
  • the network device 20 may also be a device in other networks, such as a network device in a future 5th generation (5G) mobile communication network or a future evolved Public Land Mobile Network (PLMN). The embodiment of the present application does
  • the terminal device 30 provides voice and/or data connectivity services for the user, for example, user equipment (UE), access terminal equipment, terminal equipment unit, terminal equipment station, mobile station, mobile station, remote station, remote Terminal equipment, mobile equipment, wireless communication equipment, terminal equipment agents or terminal equipment.
  • the access terminal device may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), and a wireless device.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • PLMN public land mobile network
  • FIG. 2 is a schematic diagram showing the hardware structure of the network device 20 and the terminal device 30 provided by the embodiment of the present application.
  • the terminal device 30 includes at least one processor 301, at least one memory 302, and at least one transceiver 303.
  • the terminal device 30 may further include an output device 304 and an input device 305.
  • the processor 301, the memory 302, and the transceiver 303 are connected by a bus.
  • the processor 301 can be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more programs for controlling the execution of the program of the present application. integrated circuit.
  • the processor 301 may also include a plurality of CPUs, and the processor 301 may be a single-CPU processor or a multi-core (multi-CPU) processor.
  • a processor herein may refer to one or more devices, circuits, or processing cores for processing data, such as computer program instructions.
  • the memory 302 can be a Read-Only Memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM), or other types that can store information and instructions.
  • the dynamic storage device can also be an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical disc storage, and a disc storage device. (including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be Any other media accessed, but not limited to this.
  • EEPROM Electrically Erasable Programmable Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • CD-ROM Compact Disc Read-Only Memory
  • disc storage device including compact discs, laser discs, optical discs, digital versatile discs, Blu-ray discs, etc.
  • the memory 302 can exist independently and be coupled to the processor 301 via a bus.
  • the memory 302 can also be integrated with the processor 301.
  • the memory 302 is used to store application code for executing the solution of the present application, and is controlled by the processor 301 for execution.
  • the processor 301 is configured to execute the computer program code stored in the memory 302, thereby implementing the method for data transmission in the embodiment of the present application.
  • the transceiver 303 can use any device such as a transceiver for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (WLAN), etc. .
  • the transceiver 303 includes a transmitter Tx and a receiver Rx.
  • Output device 304 is in communication with processor 301 and can display information in a variety of ways.
  • the output device 304 can be a liquid crystal display (LCD), a light emitting diode (LED) display device, a cathode ray tube (CRT) display device, or a projector.
  • Input device 305 is in communication with processor 301 and can receive user input in a variety of ways.
  • input device 305 can be a mouse, keyboard, touch screen device, or sensing device, and the like.
  • Network device 20 includes at least one processor 201, at least one memory 202, at least one transceiver 203, and at least one network interface 204.
  • the processor 201, the memory 202, the transceiver 203, and the network interface 204 are connected by a bus.
  • the network interface 204 is configured to connect to a core network device through a link (for example, an S1 interface), or connect to a network interface of other access network devices through a wired or wireless link (for example, an X2 interface) (not shown in the figure)
  • a link for example, an S1 interface
  • a wired or wireless link for example, an X2 interface
  • a description of the processor 201, the memory 202, and the transceiver 203 can be referred to the description of the processor 301, the memory 302, and the transceiver 303 in the terminal device 30, and details are not described herein again.
  • the terminal device needs to re-read at least all the contents of the MIB and the SIB1.
  • the terminal device needs to re-read at least all the contents of the MIB and the SIB1.
  • the system message changes every time, the terminal device re-reads all the contents of the MIB and SIB1 system messages, and the work efficiency is extremely low.
  • the terminal device takes a long time to acquire system messages and consumes a large amount of power. If this method of system message change is still adopted, the cost of the terminal equipment consumed is also greater.
  • the method provided by the embodiment of the present application can be used to speed up the terminal device to obtain the changed content of the system message, reduce the power consumption of the terminal device, and save the terminal device cost.
  • the network device 20 and the terminal device 30 shown in FIG. 2 are used to describe the method for indicating the system message provided by the embodiment of the present application by using the communication system 10 shown in FIG. 1 in the NB-IoT as an example.
  • the embodiment of the present application provides a method for indicating a system message, including:
  • the network device generates notification information.
  • the notification information is used to indicate status information of the first information.
  • the first information includes at least one bit in the first system message, that is, the first information is used to indicate status information of at least one bit in the first system message.
  • the status information herein includes whether the first information is changed, and/or the value of the first information. It should be noted that the notification information may also be used to indicate whether the second information is changed.
  • the second information includes at least one bit of the first system message except the first information, which is not limited by the embodiment of the present application.
  • the first information may be set as information that is frequently changed in the first system message
  • the second information may be set as information that is changed frequently in the first system message.
  • the terminal device can quickly obtain the information that the first system message changes frequently, and can reduce the probability that the terminal device reads the first system message, which is beneficial to reducing the delay of the terminal device updating the first system message.
  • the first system message may be an MIB
  • the first information may be at least one of a first value tag, a system frame number, a first superframe number, and SIB1 scheduling information in the MIB.
  • the first information may include the first label value
  • the second information may be at least one bit other than the first label value in the MIB, specifically Contains the system frame number, and/or the first superframe number, and/or SIB1 scheduling information, and/or other information. Then, since the first tag value in the MIB contains 5 bits, the notification information can be set to contain 5 bits, and the 5 bits are used to indicate the value of the first tag value.
  • the notification information may further include 1 bit, which is used to indicate whether other information is changed in the MIB except the first tag value.
  • the first information may further include the first label value and the system frame number
  • the second information may include the first superframe number, and/or SIB1 scheduling information, and/or other information. And so on.
  • the content specifically included in the first information and the second information, and the specific content included in the notification information are not limited in the embodiment of the present application.
  • the first system message may also be the SIB1, and the first information may include at least one of the at least one second tag value, the second superframe number, and the second system information (SI) scheduling information in the SIB1.
  • the first information may include the second label value
  • the second information may be at least one bit of the SIB1 except the second label value, and specifically may include the second superframe number, and/or the second SI scheduling information. And/or other information.
  • SIB1 can call up to 8 second SIs, and each second SI corresponds to one second label value, each second label value includes 2 bits. Therefore, the notification information can be set to contain N*2 bits, where N is the number of second SIs included in SIB1.
  • the notification information may be set to indicate the value of the second tag value corresponding to one second SI in the SIB1 every 2 bits.
  • the notification information may also be set to include N bits, where each bit is used to indicate whether a second tag value corresponding to a second SI in the SIB1 is changed.
  • the notification information may further include a bit indicating whether there is any change in SIB1 other than the second tag value.
  • the first information may further include the second label value and the second super frame number
  • the second information may be the second SI scheduling information, and/or other information.
  • the content specifically included in the first information and the second information, and the specific content included in the notification information are not limited in the embodiment of the present application.
  • the embodiment of the present application needs to optimize the change process of the first system message, and reduce the delay of the first system message after the terminal device reads the change, so the first information includes less bits than the first system. The number of bits the message contains.
  • the network device may carry the notification information by using a dedicated message or a dedicated channel or a dedicated signal, or may carry the notification information by using an existing message or a channel or a signal.
  • the direct indication message or the paging message may be used to carry the notification information.
  • the network device periodically sends the first system message. If the network device changes the first system message in the current period, the terminal device sends a direct indication message or a paging message to the terminal device in the service area during the last system message change period, and is used to notify the terminal device that the first system message has been changed. .
  • the terminal device After receiving the direct indication message or the paging message, the terminal device reads the entire content of the first system message in the next system message change period.
  • the network device may carry the notification information in the direct indication message, and the table 1 shows the format of the direct indication message, as follows:
  • the direct indication message contains 8 bits, wherein 2 bits are used to indicate whether the first system message has changed, and the remaining 6 bits are unused. Therefore, the embodiment of the present application adopts the unused 6 bits, which is used to carry the first Status information of a message. For example, 5 bits are used to indicate the value of the first tag value in the first system message, and the other 1 bit is used to indicate whether the information other than the first tag value in the first system message is changed.
  • the network device sends notification information to the terminal device.
  • the network device sends the notification information to the terminal device in the period of changing the first system message or in the next change period of the change of the first system message, which is not limited in this embodiment.
  • the terminal device receives the notification information.
  • the terminal device changes the content of the locally stored first system message according to the notification information.
  • the terminal device updates the content of the first information in the locally stored first system message to the value of the first information in the notification information.
  • the terminal device may continue to receive the changed first system message sent by the network device, or may not receive the changed first system message sent by the network device, which is not limited in this embodiment.
  • the terminal device receives the first system message after the change is sent, and changes the locally stored first system message according to the received first system message. Corresponding content.
  • the terminal device first determines whether the second information has changed. If the notification information indicates that the second information has not changed, the terminal device directly updates the content of the first information in the locally stored first system message according to the notification information. If the notification information indicates that the second information is changed, the terminal device receives the changed first system message, and updates the locally stored first system message according to the changed first system message.
  • the embodiment of the present application provides a method for indicating a system message. If the network device changes the first system message, the network device generates notification information, where the notification information is used to indicate status information of the first information, where the first information is the first system message. At least one bit in the middle, and the notification information is sent to the terminal device. Then, the terminal device can update the locally stored first system message according to the notification information. Compared with the prior art, the network device only sends a notification that the first system message is changed to the terminal device, and after receiving the notification, the terminal device still needs to read all the contents of the changed first system message, and the working efficiency. Low, long delay.
  • the terminal device can update the locally stored first system message according to the notification information, which is beneficial to reducing the terminal device.
  • the probability of reading the entire contents of the first system message after the change is beneficial to improve the working efficiency of the terminal device, reduce the delay, reduce the power consumption, and save the cost.
  • the method of the embodiment of the present application is exemplified by taking the first system message as the MIB as an example and combining the specific application scenarios.
  • the network device sends a message carrying the notification information to the terminal device.
  • the notification information may be carried by using a dedicated message or a dedicated channel or a dedicated signal, and the notification information may be carried by using an existing message or a channel or a signal.
  • the direct indication message or the paging message may be used. .
  • the first tag value can be understood as the version number of the MIB in the NB-IoT
  • the first tag value will change, that is, the probability of the first tag value being changed is high. Therefore, the first information can be set to include the first tag value, and the notification information is used to indicate the value of the first tag value.
  • the notification information is carried in the direct indication message. Since the first tag value in the MIB contains 5 bits, 5 bits out of the unused bits in the direct indication message can be used to indicate the value of the first tag value in the MIB. It should be noted that the 5 bits herein are only an example, and the embodiment of the present application does not limit the specific number of bits indicating the value of the first information.
  • the first information is set to the first tag value, and the MIB is excluded from the first tag value.
  • At least one bit is set to the second information, and the second information may specifically include a system frame number, and/or a first superframe number, and/or SIB1 scheduling information, and/or other information.
  • the notification information is used to indicate the first tag value change content, and whether the second information other than the first tag value is changed.
  • one bit of the unused bits in the direct indication message may be used to indicate whether the second information in the MIB is changed. If the value of the bit is "0", it indicates that the second information in the MIB has not changed. If the value of the bit is "1", it indicates that the second information in the MIB has changed.
  • the SIB1 scheduling information in the MIB may also be changed.
  • the first information may be set to the first label value and the SIB1 scheduling information, where the notification information includes a value indicating the value of the first label and the value of the SIB1 scheduling information.
  • a special message may be added to carry the notification information. 5 bits are used to indicate the value of the first tag value, where 4 bits are used to indicate the value of the SIB1 scheduling information. It should be noted that the 5 bits and 4 bits are merely examples.
  • the embodiment of the present application does not limit the specific number of bits indicating the value of the first information and the value of the second information.
  • the setting method may refer to the foregoing, and the description is not repeated.
  • the terminal device receives a message carrying the notification information.
  • the terminal device updates the locally stored MIB according to the notification information.
  • the terminal device acquires the notification information from the message that receives the notification information. Then, the related content of the locally stored MIB is changed according to the content in the notification information.
  • the terminal device may directly update the first tag value in the locally stored MIB to the value of the first tag value in the notification message.
  • the terminal device first determines whether the second information in the MIB is changed. If the second information is not changed, the terminal device may directly update the value of the first tag value in the locally stored MIB according to the notification information. The terminal device can no longer receive the changed MIB. When the second information is changed, the terminal device receives the changed MIB, and updates the content of the locally stored MIB based on the MIB that has received the change.
  • the terminal device can directly update the value of the first tag value and the value of the SIB1 scheduling information in the locally stored MIB according to the notification information.
  • the terminal device first determines whether the second information in the MIB has changed. If the second information is not changed, the terminal device may directly update the value of the first tag value and the value of the SIB1 scheduling information in the locally stored MIB according to the notification information. The terminal device can no longer receive the changed MIB. When the second information is changed, the terminal device receives the changed MIB, and updates the content of the locally stored MIB based on the MIB that has received the change.
  • the network device sends a message carrying the notification information to the terminal device.
  • the notification information may be carried by using a dedicated message or a dedicated channel or a dedicated signal, and the notification information may be carried by using an existing message or a channel or a signal.
  • the direct indication message or the paging message may be used. .
  • SIB1 contains a maximum of 8 second SIs, and each second SI corresponds to a 2-bit second tag value. And the probability of the second tag value being changed is large.
  • the first information can therefore be set to contain the second tag value.
  • a dedicated message may be added to carry the notification information.
  • the notification information includes N*2 bits, where N is the number of second SIs included in SIB1.
  • Each 2 bits in the notification information is used to indicate the value of the second tag value corresponding to a second SI.
  • the notification information may also include N bits, and each bit is used to indicate whether a second tag value corresponding to a second SI is changed. It should be noted that the N*2 bit herein is only an example, and the embodiment of the present application does not limit the specific number of bits indicating the value of the first information.
  • the first information is set to the second tag value, and the SIB1 is excluded from the second tag value.
  • At least one bit is set as the second information, and the second information may specifically include a second superframe number, and/or second SI scheduling information, and/or other information.
  • the notification information is used to indicate the second tag value change content, and whether the second information other than the second tag value is changed.
  • one bit of the dedicated message may be used to indicate whether the second information in the SIB1 is changed. If the value of the bit is "0", it indicates that the second information in SIB1 has not changed. If the value of the bit is "1", it indicates that the second information of SIB1 has changed.
  • the second SI scheduling information in SIB1 may also be changed.
  • the first information may be set to the second label value and the second SI scheduling information, where the notification information includes a value for indicating the second label value and a value of the second SI scheduling information.
  • the N*2 bit in the dedicated message is used to indicate the value of the second tag value, and the other positive integer bits are used to indicate the value of the second SI scheduling information.
  • the setting method may refer to the above description, and the description is not repeated.
  • the terminal device receives a message carrying the notification information.
  • the terminal device updates the locally stored SIB1 according to the notification information.
  • the terminal device acquires the notification information from the message that receives the notification information. Then, the related content of the locally stored SIB1 is changed according to the content in the notification information.
  • the terminal device may directly update the second label value in the locally stored SIB1 to the value of the second label value in the notification information.
  • the notification information includes information indicating a value of the second tag value in the SIB1, and information indicating whether the second information is changed in the SIB1 except the second tag value. Then, the terminal device first determines whether the second information in the SIB1 is changed. If the second information is not changed, the terminal device may directly update the value of the second tag value in the locally stored SIB1 according to the notification information. The terminal device can no longer receive the changed SIB1. When the second information is changed, the terminal device receives the changed SIB1, and updates the content related to the locally stored SIB1 based on the SIB1 that has received the change.
  • the terminal device can directly update the locally stored SIB1 according to the notification information.
  • the value of the second tag value and the value of the second SI scheduling information can directly update the locally stored SIB1 according to the notification information.
  • the terminal device first determines whether the second information in the SIB1 is changed. If the second information is not changed, the terminal device may directly update the value of the second tag value and the value of the second SI scheduling information in the locally stored SIB1 according to the notification information. The terminal device can no longer receive the changed SIB1. When the second information is changed, the terminal device receives the changed SIB1, and updates the content related to the locally stored SIB1 based on the SIB1 that has received the change.
  • the solution provided by the embodiment of the present application is introduced from the perspective of the interaction between the terminal device and the network device.
  • the foregoing network device and terminal device include corresponding hardware structures or software modules for performing respective functions.
  • the present application can be implemented in a combination of hardware or hardware and computer software in combination with the elements and algorithm steps of the various examples described in the embodiments disclosed herein. Whether a function is implemented in hardware or computer software to drive hardware depends on the specific application and design constraints of the solution. A person skilled in the art can use different methods to implement the described functions for each particular application, but such implementation should not be considered to be beyond the scope of the present application.
  • the embodiments of the present application may divide the function modules of the network device and the terminal device according to the foregoing method.
  • each function module may be divided according to each function, or two or more functions may be integrated into one processing module.
  • the above integrated modules can be implemented in the form of hardware or in the form of software functional modules. It should be noted that the division of the module in the embodiment of the present application is schematic, and is only a logical function division, and the actual implementation may have another division manner.
  • FIG. 6 shows a possible structural diagram of the network device 60 involved in the above embodiment.
  • the network device 60 includes a processing module 601 and a sending module 602.
  • the processing module 601 is configured to support the network device 60 to perform step 101 in FIG. 3, and the sending module 602 is configured to support the network device 60 to perform step 102 in FIG.
  • the sending module 602 is configured to support the network device 60 to perform step 201 in FIG.
  • the sending module 602 is configured to support the network device 60 to perform step 301 in FIG.
  • the network device is presented in the form of dividing each functional module corresponding to each function, or the network device is presented in a form that divides each functional module in an integrated manner.
  • a "module” herein may include an Application-Specific Integrated Circuit (ASIC), a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, or other device that can provide the above functions.
  • ASIC Application-Specific Integrated Circuit
  • network device 60 may take the form of network device 20 shown in FIG.
  • the processing module 601 of FIG. 6 can be implemented by the processor 201 and the memory 202 in the network device 20 of FIG.
  • the sending module 602 can be executed by using the application code stored in the memory 202 by the processor 201, which is not limited in this embodiment.
  • the network device provided by the embodiment of the present application can be used to perform the foregoing method for indicating the system message. Therefore, the technical solution can be obtained by referring to the foregoing method embodiment.
  • FIG. 7 shows a possible structural diagram of the terminal device 70 involved in the above embodiment.
  • the terminal device 70 includes: The receiving module 701 and the processing module 702.
  • the receiving module 701 is configured to support the terminal device 70 to perform step 103 in FIG. 3, and the processing module 702 is configured to support the terminal device 70 to perform step 104 in FIG.
  • the receiving module 701 is configured to support the terminal device 70 to perform step 202 in FIG. 4; the processing module 702 is configured to support the terminal device 70 to perform step 203 in FIG.
  • the receiving module 701 is configured to support the terminal device 70 to perform step 302 in FIG. 5; the processing module 702 is configured to support the terminal device 70 to perform step 303 in FIG.
  • the terminal device 70 may further include a storage module 703 for storing data and programs generated or processed.
  • the terminal device is presented in a form that divides each functional module corresponding to each function, or the terminal device is presented in a form that divides each functional module in an integrated manner.
  • a "module” herein may include an Application-Specific Integrated Circuit (ASIC), a circuit, a processor and memory that executes one or more software or firmware programs, an integrated logic circuit, or other device that can provide the above functions.
  • ASIC Application-Specific Integrated Circuit
  • the terminal device 70 can take the form of the terminal device 30 shown in FIG.
  • the processing module 701 in FIG. 7 can be implemented by the processor 301 in the terminal device 30 of FIG.
  • the receiving module 701 can be executed by using the application code stored in the memory 302 by the processor 301, which is not limited in this embodiment.
  • the terminal device provided by the embodiment of the present application can be used to perform the foregoing method for indicating the system message. Therefore, the technical solution can be obtained by referring to the foregoing method embodiment.
  • the above embodiments it may be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • a software program it may be implemented in whole or in part in the form of a computer program product.
  • the computer program product includes one or more computer instructions.
  • the computer program instructions When the computer program instructions are loaded and executed on a computer, the processes or functions described in accordance with embodiments of the present application are generated in whole or in part.
  • the computer can be a general purpose computer, a special purpose computer, a computer network, or other programmable device.
  • the computer instructions can be stored in a computer readable storage medium or transferred from one computer readable storage medium to another computer readable storage medium, for example, the computer instructions can be from a website site, computer, server or data center Transmission to another website site, computer, server, or data center by wire (eg, coaxial cable, fiber optic, Digital Subscriber Line (DSL)) or wireless (eg, infrared, wireless, microwave, etc.).
  • the computer readable storage medium can be any available media that can be accessed by a computer or a data storage device that includes one or more servers, data centers, etc. that can be integrated with the media.
  • the usable medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (such as a Solid State Disk (SSD)) or the like.
  • a magnetic medium eg, a floppy disk, a hard disk, a magnetic tape
  • an optical medium eg, a DVD
  • a semiconductor medium such as a Solid State Disk (SSD)

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Abstract

本申请实施例公开了一种系统消息的指示方法、装置及系统，涉及通信技术领域，用于降低终端设备更新系统消息的时延，降低功耗。该方法包括：网络设备生成通知信息，该通知信息用于指示第一信息的状态信息，第一信息包括第一系统消息中至少一个比特，第一信息包含的比特数小于所述第一系统消息包含的比特数；网络设备向终端设备发送该通知信息。本申请实施例应用于系统消息的变更过程中。

Description

一种系统消息的指示方法、装置及系统 技术领域
本申请涉及通信技术领域，尤其涉及是一种系统消息的指示方法、装置及系统。
背景技术
第三代合作伙伴计划(3rd Generation Partnership Project，3GPP)标准基于蜂窝网络，通过设计新的空口，并利用窄带技术的特点承载物联网(Internet of Things，IoT)业务，这一类IoT被称为窄带物联网(Narrow Band-Internet of Things，NB-IoT)。与传统的蜂窝网络相比，NB-IoT网络的业务产生的数据包更小，数据传输周期长，且NB-IoT的终端设备的成本低。通常，一个NB-IoT基站下可能存在大量终端设备，以实现终端设备的海量部署。
目前，在NB-IoT中，当系统消息发生变更时，NB-IoT基站会通过直接指示(directindication)或者寻呼消息(paging message)通知终端设备，该直接指示可以存在于物理下行控制信道(Physical Downlink Control Channel，PDCCH)中，该寻呼消息可以存在于物理下行共享信道(Physical Downlink Shared Channel，PDSCH)中。而终端设备收到变更通知后，会重新读取主信息块(Master Information Block，MIB)和系统信息块1(System Information Block 1，SIB1)中的内容，并选择性读取其它系统消息的内容。一方面，由于MIB和SIB1中的内容只有部分字段内容是经常发生变化，而其余字段是相对稳定不变的，终端设备每一次都重新读取MIB和SIB1中的全部内容，工作效率低。另一方面，由于NB-IoT中采用的是窄带技术，因而终端设备读取系统消息的时延大，进而功耗大、成本大。由此可见，NB-IoT的现有的系统消息的变更流程存在优化空间和需要。
发明内容
本申请的实施例提供的系统消息的指示方法、装置及系统，用于降低终端设备更新系统消息的时延，降低功耗。
为达到上述目的，本申请的实施例采用如下技术方案：
第一方面，本申请实施例提供一种系统消息的指示方法，包括：
网络设备生成通知信息，该通知信息用于指示第一系统消息中第一信息的状态信息，并将该通知信息发送给终端设备。其中第一信息包括第一系统消息中的至少一个比特，且第一信息包含的比特数小于第一系统消息包含的比特数。于是，终端设备可不再需要读取变更后第一系统消息的全部内容，可根据通知信息对本地存储的第一系统消息进行更新，有利于降低终端设备更新第一系统消息的时延，降低功耗。
通常，可将第一信息设置为第一系统消息中经常变更的信息，可以减少终端设备读取变更后第一系统消息的几率，也有利于第终端设备更新第一系统消息的时延，降低功耗。
在一种可能的设计中，通知信息用于指示第一信息的状态信息包括：通知信息用 于指示第一信息是否发生表更，和/或用于指示第一信息的取值。这样，可通过设置第一信息不同的状态信息，来适应第一系统消息的不同变更情况。
在一种可能的设计中，通知信息还用于指示第二信息是否发生变更，该第二信息包括第一系统消息中除第一信息之外的至少一个比特。这样，终端设备可根据第二信息是否发生变更，来确定是直接根据通知信息来更新本地存储的第一系统消息，还是根据变更后的第一系统消息来更新本地存储的第一系统消息。
在一种可能的设计中，第一系统消息为MIB，第一信息包括MIB中经常发生变更的信息，例如第一信息包括第一标签值、系统帧号、第一超帧号、SIB1调度信息中至少一个。
举例说明，第一信息可以包含第一标签值，则第二信息可以是MIB中除第一标签值之外的至少一比特，具体可以包含系统帧号，和/或第一超帧号，和/或SIB1调度信息，和/或其他信息。那么，由于MIB中第一标签值包含5比特，所以通知信息可设置为包含5比特，用这5比特指示第一标签值的取值。此外，通知信息还可再包含1比特，用于指示MIB中除第一标签值之外，是否有其他信息发生变更。需要说明的是，第一信息还可以包含第一标签值和系统帧号，则第二信息可以包含第一超帧号，和/或SIB1调度信息，和/或其他信息。依次类推。本申请实施例对第一信息和第二信息具体包含的内容，以及通知信息中包含的具体内容均不做限定。
在一种可能的设计中，第一系统消息为SIB1，第一信息包括SIB1中经常发生变更的信息，例如第一信息包括第二标签值、第二超帧号、第二SI调度信息中至少一个。
举例说明，第一信息可以包含第二标签值，则第二信息可以是SIB1中除第二标签值之外的至少一比特，具体可以包含第二超帧号，和/或第二SI调度信息，和/或其他信息。需要说明的是，由于SIB1最多可调用8个第二SI，而每一个第二SI对应于一个第二标签值，每一个第二标签值包含2比特。所以通知信息可设置为包含N*2比特，其中N为SIB1中包含的第二SI的数量。通知信息可设置为每2比特指示SIB1中一个第二SI对应的第二标签值的取值。可选的，通知信息也可设置为包含N比特，其中每一个比特用于指示SIB1中一个第二SI对应的第二标签值是否发生变更。此外，通知信息还可以包含一个比特，用于指示SIB1中是否还有除第二标签值之外的其他信息发生变更。需要说明的是，第一信息还可以包含第二标签值和第二超帧号，则第二信息可以是第二SI调度信息，和/或其他信息。本申请实施例对第一信息和第二信息具体包含的内容，以及通知信息中包含的具体内容均不做限定。
在一种可能的设计中，网络设备可以采用专用消息或专用信道或专用信号携带通知信息，也可以采用现有的消息或信道或信号携带通知信息，例如可以采用直接指示消息或者寻呼消息携带通知信息。
具体的，网络设备周期性的发送第一系统消息。若网络设备在本周期变更了第一系统消息，则会在下一系统消息变更周期内向服务区的终端设备发送直接指示消息或寻呼消息，在直接指示消息或寻呼消息中携带该通知信息。
在一种可能的设计中，通知信息用于指示第一标签值的取值，和/或，通知信息用于指示第一系统消息中除第一标签值之外的第二信息是否发生变更。
示例性的，由于在NB-IoT中，第一标签值可以理解为MIB的版本号，当系统消 息中任何一个信息(协议约定的一些特定信息除外，如接入承载控制信息等)发生变更时，第一标签值都会发生变更，即第一标签值发生变更的几率很高。因此，可以将第一信息设置为包含第一标签值，通知信息用于指示第一标签值的取值。具体的，可将通知信息携带在直接指示消息中。由于MIB中第一标签值包含5比特，因此，可使用直接指示消息中未使用的比特中的5比特用于指示MIB中第一标签值的的取值。需要说明的是，这里的5比特仅仅是一种示例，本申请实施例并不限定指示第一信息的取值的具体比特数。
示例性的，考虑到MIB中可能出现除第一标签值之外的其他信息发生变更的情况，在将第一信息设置为第一标签值的同时，将MIB中除第一标签值之外的至少一比特设置为第二信息，具体可以包含系统帧号，和/或第一超帧号，和/或SIB1调度信息，和/或其他信息。那么，通知信息用于指示第一标签值变更内容，以及除第一标签值之外的第二信息是否发生变更。具体的，可使用直接指示消息中未使用的比特中的1比特用于指示MIB中第二信息是否发生变更。若该比特取值为“0”，表明MIB中第二信息未发生变更。若该比特取值为“1”，表明MIB中第二信息发生了变更。
示例性的，除了第一标签值之外，MIB中的SIB1调度信息也可能发生变更。那么，也可以将第一信息设置为第一标签值和SIB1调度信息，于是通知信息包括用于指示第一标签值的取值和SIB1调度信息的取值。具体的，可新增一条专用消息携带通知信息。其中5比特用于指示第一标签值的取值，其中如4比特用于指示SIB1调度信息的取值。需要说明的是，这里的5比特、4比特仅仅是一种示例，本申请实施例并不限定指示第一信息的取值和第二信息取值的具体比特数。此外，还可用1比特指示MIB中是否有除第一标签值和SIB1调度信息之外的其他第二信息发生变更，设置方法可参考上文所述，不再重复赘述。
第二方面，本申请实施例提供一种系统信息的指示方法，包括：终端设备接收网络设备发送的通知信息，并根据该通知信息更新本地存储的第一系统消息的内容。
其中，通知信息用于指示第一信息的状态信息，而第一信息包含第一系统消息中至少一个比特，且第一信息包含的比特数小于第一系统信息包含的比特数。
举例说明，若通知信息指示第一信息的取值，则终端设备将本地存储的第一系统消息中的第一信息的内容更新为通知信息中第一信息的取值。可选的，终端设备可继续接收网络设备发送的变更后的第一系统消息，也可不再接收网络设备发送的变更后的第一系统消息，本申请实施例不做限定。
若通知信息指示第一信息发生变更，且未指示第一信息的取值，则终端设备接收发送变更后的第一系统消息，根据接收到的第一系统消息变更本地存储的第一系统消息中相应的内容。
若通知信息指示第一信息的取值，以及指示第二信息是否发生变更，则终端设备首先确定第二信息是否发生变更。若通知信息指示第二信息未发生变更，则终端设备直接根据通知信息更新本地存储的第一系统消息中第一信息的内容。若通知信息指示第二信息发生变更，则终端设备接收变更后的第一系统消息，根据变更后的第一系统消息更新本地存储的第一系统消息。
一种可能的设计中，通知信息用于指示第一信息的状态信息包括：通知信息用于 指示第一信息的取值，和/或，通知信息用于指示第一信息是否发生变更。
一种可能的设计中，通知信息还用于指示第二信息是否发生变更，第二信息包括第一系统消息中除第一信息之外的至少一个比特。
一种可能的设计中，终端设备读取通知信息中第一信息的取值，用于更新本地存储的第一系统消息中的第一信息的取值。
一种可能的设计中，若通知信息指示第一信息发生变更，却没有指示第一信息的取值，或者通知信息指示第二信息发生变更，则终端设备接收变更后的第一系统消息，并根据变更后的第一系统消息更新本地存储的第一系统消息的内容。
一种可能的设计中，第一系统消息为MIB，第一信息包括第一标签值、系统帧号、第一超帧号、SIB1调度信息中至少一个。
一种可能的设计中，第一系统消息为SIB1，第一信息包括第二标签值、第二超帧号、第二系统消息调度信息中至少一个。
一种可能的设计中，终端设备接收网络设备发送的直接指示消息，该直接指示消息携带通知信息，或者，终端设备接收网络设备发送的寻呼消息，该寻呼消息携带通知信息。
一种可能的设计中，通知信息用于指示第一标签值的取值，和/或，通知信息用于指示第一系统消息中除第一标签值之外其他信息是否发生变更。
第三方面、本申请实施例提供一种发送系统消息指示的网络设备，包括：处理器和收发器；处理器，用于生成通知信息，通知信息用于指示第一信息的状态信息，第一信息包括第一系统消息中至少一个比特，第一信息包含的比特数小于第一系统消息包含的比特数；收发器，用于向终端设备发送处理器生成的通知信息。
一种可能的设计中，通知信息用于指示第一信息的状态信息包括：通知信息用于指示第一信息是否发生变更；和/或，通知信息用于指示第一信息的取值。
一种可能的设计中，通知信息还用于指示第二信息是否发生变更，第二信息包括第一系统消息中除第一信息之外的至少一个比特。
一种可能的设计中，第一系统消息为主信息块MIB或系统信息块SIB1。
一种可能的设计中，第一系统消息为MIB，第一信息包括第一标签值、系统帧号、第一超帧号、SIB1调度信息中至少一个。
一种可能的设计中，第一系统消息为SIB1，第一信息包括第二标签值、第二超帧号、第二系统消息调度信息中至少一个。
一种可能的设计中，收发器，用于向终端设备发送直接指示消息，直接指示消息携带处理器生成的通知信息，或者，收发器，用于向终端设备发送寻呼消息，寻呼消息携带处处理器生成的通知信息。
一种可能的设计中，通知信息用于指示第一标签值的取值；和/或，通知信息用于指示第一系统消息中除第一标签值之外至少一个比特是否发生变更。
第四方面，本申请实施例提供一种接收系统消息指示的终端设备，包括：处理器、存储器和收发器；收发器，用于接收网络设备发送的通知信息，通知信息用于指示第一信息的状态信息，第一信息包括第一系统消息中至少一个比特，第一信息包含的比特数小于第一系统消息包含的比特数；处理器，用于根据收发器接收的通知信息变更 存储器存储的第一系统消息的内容。
一种可能的设计中，通知信息用于指示第一信息的状态信息包括：通知信息用于指示第一信息的取值；和/或，通知信息用于指示第一信息是否发生变更。
一种可能的设计中，通知信息还用于指示第二信息是否发生变更，第二信息包括第一系统消息中除第一信息之外的至少一个比特。
一种可能的设计中，处理器，还用于读取通知信息中第一信息的取值。
一种可能的设计中，处理器，用于若通知信息指示第一信息发生变更，和/或，通知信息指示第二信息发生变更，则根据第一系统消息变更存储器存储的第一系统消息的内容。
一种可能的设计中，第一系统消息为主信息块MIB或系统信息块SIB1。
一种可能的设计中，第一系统消息为MIB，第一信息包括第一标签值、系统帧号、第一超帧号、SIB1调度信息中至少一个。
一种可能的设计中，第一系统消息为SIB1，第一信息包括第二标签值、第二超帧号、第二系统消息调度信息中至少一个。
一种可能的设计中，收发器，用于接收网络设备发送的直接指示消息，直接指示消息携带通知信息，或者，收发器，用于接收网络设备发送的寻呼消息，寻呼消息中携带通知信息。
一种可能的设计中，通知信息用于指示第一标签值的取值；和/或，通知信息用于指示第一系统消息中除第一标签值之外至少一个比特是否发生变更。
第五方面，本发明实施例提供了一种基站，该基站具有实现上述方法实际中基站行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。
在一个可能的设计中，基站的结构中包括处理器和发射器，所述处理器被配置为支持基站执行上述方法中相应的功能。所述发射器用于支持基站与UE之间的通信，向UE发送上述方法中所涉及的信息或者指令。所述基站还可以包括存储器，所述存储器用于与处理器耦合，其保存基站必要的程序指令和数据。
第六方面，本发明实施例提供了一种UE，该UE具有实现上述方法设计中UE行为的功能。所述功能可以通过硬件实现，也可以通过硬件执行相应的软件实现。所述硬件或软件包括一个或多个与上述功能相对应的模块。所述模块可以是软件和/或硬件。
在一个可能的设计中，UE的结构中包括接收器和处理器，所述接收器被配置为支持UE接收上述基站为UE配置的第一DRX长周期，第二DRX长周期，激活DRX指示或者去激活DRX指示等各种指令。所述处理器控制UE根据所述接收器接收的第一DRX长周期,去激活DRX指示，或者第二DRX长周期接收寻呼。
第七方面，本申请实施例提供了一种计算机可读存储介质，该计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机可以执行上述第一方面或第二方面中任一所述的系统消息的指示方法。
第八方面，本申请实施例提供了一种包含指令的计算机程序产品，当其在计算机上运行时，使得计算机可以执行第一方面或第二方面中任一所述的系统消息 的指示方法。
第九方面，提供一种通信装置。该通信装置可以为上述方法设计中的网络设备，或者为设置在网络设备中的芯片。该通信装置包括：存储器，用于存储计算机可执行程序代码；通信接口，以及处理器，处理器与存储器、通信接口耦合。其中存储器所存储的程序代码包括指令，当处理器执行所述指令时，使通信装置执行上述第二方面或第二方面的任意一种可能的设计中网络设备所执行的方法。
第十方面，提供一种通信装置。该通信装置可以为上述方法设计中的网络设备，或者为设置在网络设备中的芯片。该通信装置包括：存储器，用于存储计算机可执行程序代码；通信接口，以及处理器，处理器与存储器、通信接口耦合。其中存储器所存储的程序代码包括指令，当处理器执行所述指令时，使通信装置执行上述第三方面或第三方面的任意一种可能的设计中网络设备所执行的方法。
第十一方面，本申请实施例提供一种系统消息指示系统，该系统消息指示系统包括如上述第三方面所述的网络设备和如上述第四方面所述的终端设备。
本申请实施例提供一种系统消息指示的方法、装置及系统，若网络设备变更第一系统消息，那么网络设备生成通知信息，该通知信息用于指示第一信息的状态信息，第一信息为第一系统消息中至少一比特，并将该通知信息发送给终端设备。于是，终端设备可根据该通知信息更新本地存储的第一系统消息。相比较于现有技术中，网络设备仅向终端设备发送第一系统消息发生变更的通知，而终端设备接收到该通知后，仍需要读取变更后的第一系统消息的全部内容，工作效率低，时延大。而在本申请实施例中，若将第一系统消息中变更频繁的信息设置为第一信息，那么，则终端设备仅根据通知信息就可以更新本地存储的第一系统消息，有利于减少终端设备读取变更后第一系统消息的全部内容的几率，有利于提高终端设备的工作效率，降低时延，降低功耗，有利于节省成本。
附图说明
图1为本本申请实施例提供的一种通信系统的网络架构图；
图2为本申请实施例提供的一种网络设备和终端设备的结构示意图；
图3为本申请实施例提供的一种系统消息的指示方法的流程图；
图4为本申请实施例提供的又一种系统消息的指示方法的流程示意图；
图5为本申请实施例提供的又一种系统消息的指示方法的流程示意图；
图6为本申请实施例提供的一种网络设备的结构示意图；
图7为本申请实施例提供的一种终端设备的结构示意图。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚地描述。
如图1所示，为本申请实施例提供一种通信系统10，该通信系统包括网络设备20和终端设备30。
其中，网络设备20用于向终端设备30发送系统消息，以便终端设备30可以根据网络设备20下发的系统消息进行数据的发送。网络设备20可以是无线通信的基站或基站控制器等。例如，基站可以是全球移动通信系统(Global System for Mobile  Communication，GSM)或码分多址(Code Division Multiple Access，CDMA)中的基站(Base Transceiver Station，BTS)，也可以是宽带码分多址(Wideband Code Division Multiple Access，WCDMA)中的基站(NodeB)，还可以是LTE中的演进型基站eNB或e-NodeB(evolutional Node B)等。或者可以是IoT或者NB-IoT中的eNB，本申请实施例对此不作具体限定。当然，网络设备20还可以是其他网络中的设备，比如可以是未来第五代(5th generation，5G)移动通信网络或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)中的网络设备，本申请实施例对此不作具体限定。
终端设备30为用户提供语音和/或数据连通性服务，例如可以是用户设备(user equipment，UE)、接入终端设备、终端设备单元、终端设备站、移动站、移动台、远方站、远程终端设备、移动设备、无线通信设备、终端设备代理或终端设备装置等。接入终端设备可以是蜂窝电话、无绳电话、会话启动协议(session initiation protocol，SIP)电话、无线本地环路(wireless local loop，WLL)站、个人数字处理(personal digital assistant，PDA)、具有无线通信功能的手持设备、计算设备或连接到无线调制解调器的其它处理设备、车载设备、可穿戴设备，未来5G网络中的终端设备或者未来演进的公共陆地移动网络(Public Land Mobile Network，PLMN)网络中的终端设备等，本申请实施例对此不作具体限定。
如图2所示，为本申请实施例提供的网络设备20和终端设备30的硬件结构示意图。
终端设备30包括至少一个处理器301、至少一个存储器302、至少一个收发器303。可选的，终端设备30还可以包括输出设备304和输入设备305。
处理器301、存储器302和收发器303通过总线相连接。处理器301可以是一个通用中央处理器(Central Processing Unit，CPU)、微处理器、特定应用集成电路(Application-Specific Integrated Circuit，ASIC)，或者一个或多个用于控制本申请方案程序执行的集成电路。处理器301也可以包括多个CPU，并且处理器301可以是一个单核(single-CPU)处理器或多核(multi-CPU)处理器。这里的处理器可以指一个或多个设备、电路或用于处理数据(例如计算机程序指令)的处理核。
存储器302可以是只读存储器(Read-Only Memory，ROM)或可存储静态信息和指令的其他类型的静态存储设备、随机存取存储器(Random Access Memory，RAM)或者可存储信息和指令的其他类型的动态存储设备，也可以是电可擦可编程只读存储器(Electrically Erasable Programmable Read-Only Memory，EEPROM)、只读光盘(Compact Disc Read-Only Memory，CD-ROM)或其他光盘存储、光碟存储(包括压缩光碟、激光碟、光碟、数字通用光碟、蓝光光碟等)、磁盘存储介质或者其他磁存储设备、或者能够用于携带或存储具有指令或数据结构形式的期望的程序代码并能够由计算机存取的任何其他介质，但不限于此。存储器302可以是独立存在，通过总线与处理器301相连接。存储器302也可以和处理器301集成在一起。其中，存储器302用于存储执行本申请方案的应用程序代码，并由处理器301来控制执行。处理器301用于执行存储器302中存储的计算机程序代码，从而实现本申请实施例中所述数据传输的方法。
收发器303可以使用任何收发器一类的装置，用于与其他设备或通信网络通信，如以太网、无线接入网(Radio Access Network，RAN)、无线局域网(Wireless Local Area Networks，WLAN)等。收发器303包括发射机Tx和接收机Rx。
输出设备304和处理器301通信，可以以多种方式来显示信息。例如，输出设备304可以是液晶显示器(Liquid Crystal Display，LCD)，发光二级管(Light Emitting Diode，LED)显示设备，阴极射线管(Cathode Ray Tube，CRT)显示设备，或投影仪(projector)等。输入设备305和处理器301通信，可以以多种方式接收用户的输入。例如，输入设备305可以是鼠标、键盘、触摸屏设备或传感设备等。
网络设备20包括至少一个处理器201、至少一个存储器202、至少一个收发器203和至少一个网络接口204。处理器201、存储器202、收发器203和网络接口204通过总线相连接。其中，网络接口204用于通过链路(例如S1接口)与核心网设备连接，或者通过有线或无线链路(例如X2接口)与其它接入网设备的网络接口进行连接(图中未示出)，本申请实施例对此不作具体限定。另外，处理器201、存储器202和收发器203的相关描述可参考终端设备30中处理器301、存储器302和收发器303的描述，在此不再赘述。
需要说明的是，根据现有的通信标准，如果网络设备发送的系统消息发生了变更，那么，终端设备至少需要重新读取MIB和SIB1的全部内容。然而，实际情况中，常常存在系统消息中只有部分字段经常发生变更，而其他字段相对稳定。若系统消息每一次发生变更，终端设备都重新读取MIB和SIB1系统消息的全部内容，工作效率极低。尤其是在NB-IoT中，由于系统采用的窄带技术，终端设备获取系统消息耗时长，功耗大。若仍然采用这种系统消息变更的方法，消耗的终端设备成本也更大。为此，可以利用本申请实施例提供的方法来加快终端设备获取系统消息的变更内容，降低终端设备的功耗，节省终端设备成本。
下面将结合图2所示的网络设备20和终端设备30，以图1所示的通信系统10应用在NB-IoT中为例，对本申请实施例提供的系统消息的指示方法进行展开说明。
如图3所示，本申请实施例提供了一种系统消息的指示方法，包括：
101、网络设备生成通知信息。
其中，通知信息用于指示第一信息的状态信息。第一信息包括第一系统消息中至少一个比特，即第一信息用于指示第一系统消息中至少一个比特的状态信息。这里的状态信息包括第一信息是否发生变更，和/或第一信息的取值。需要说明的是，通知信息还可用于指示第二信息是否发生变更，其中第二信息包括第一系统消息中除第一信息之外的至少一个比特，本申请实施例对此不做限定。
需要说明的是，第一信息可以设置为第一系统消息中变更频繁的信息，第二信息可以设置为第一系统消息中变更次频繁的信息。这样，终端设备可以快速获取到第一系统消息变更频繁的信息，可以减少终端设备读取第一系统消息的几率，有利于降低终端设备更新第一系统消息的时延。
示例性的，第一系统消息可以是MIB，第一信息可以是MIB中第一标签值(value tag)、系统帧号、第一超帧号、SIB1调度信息中的至少一个。例如：第一信息可以包含第一标签值，则第二信息可以是MIB中除第一标签值之外的至少一比特，具体可以 包含系统帧号，和/或第一超帧号，和/或SIB1调度信息，和/或其他信息。那么，由于MIB中第一标签值包含5比特，所以通知信息可设置为包含5比特，用这5比特指示第一标签值的取值。此外，通知信息还可再包含1比特，用于指示MIB中除第一标签值之外，是否有其他信息发生变更。需要说明的是，第一信息还可以包含第一标签值和系统帧号，则第二信息可以包含第一超帧号，和/或SIB1调度信息，和/或其他信息。依次类推。本申请实施例对第一信息和第二信息具体包含的内容，以及通知信息中包含的具体内容均不做限定。
示例性的，第一系统消息还可以是SIB1，则第一信息可以包含SIB1中的至少一个第二标签值、第二超帧号、第二系统消息(System Information，SI)调度信息中至少一个。例如：第一信息可以包含第二标签值，则第二信息可以是SIB1中除第二标签值之外的至少一比特，具体可以包含第二超帧号，和/或第二SI调度信息，和/或其他信息。需要说明的是，由于SIB1最多可调用8个第二SI，而每一个第二SI对应于一个第二标签值，每一个第二标签值包含2比特。所以通知信息可设置为包含N*2比特，其中N为SIB1中包含的第二SI的数量。通知信息可设置为每2比特指示SIB1中一个第二SI对应的第二标签值的取值。可选的，通知信息也可设置为包含N比特，其中每一个比特用于指示SIB1中一个第二SI对应的第二标签值是否发生变更。此外，通知信息还可以包含一个比特，用于指示SIB1中是否还有除第二标签值之外的其他信息发生变更。需要说明的是，第一信息还可以包含第二标签值和第二超帧号，则第二信息可以是第二SI调度信息，和/或其他信息。本申请实施例对第一信息和第二信息具体包含的内容，以及通知信息中包含的具体内容均不做限定。
需要说明的是，由于本申请实施例需要优化第一系统消息的变更流程，减少终端设备读取变更后的第一系统消息的时延，所以这里的第一信息包含的比特数小于第一系统消息包含的比特数。
需要说明的是，网络设备可以采用专用消息或专用信道或专用信号携带通知信息，也可以采用现有的消息或信道或信号携带通知信息，例如可以采用直接指示消息或者寻呼消息携带通知信息。举例说明，在现有的通信标准中，网络设备周期性的发送第一系统消息。若网络设备在本周期变更了第一系统消息，则一般会在上一个系统消息变更周期内向服务区的终端设备发送直接指示消息或寻呼消息，用于通知终端设备第一系统消息发生了变更。而后，终端设备接收到直接指示消息或寻呼消息后，会在下一系统消息变更周期读取第一系统消息的全部内容。示例性的，在本申请实施例中，网络设备可以将通知信息携带在直接指示消息中，表一示出了直接指示消息的格式，如下：
表一直接指示消息的格式
Bit Field in Direct Indication information
1 System Info Modification
2 System Info Modification-eDRX
3-8 Not used,and shall be ignored by UE if received
由表一可见，直接指示消息包含8比特，其中2比特用于指示第一系统消息是否发生变更，剩余6比特未用。于是，本申请实施例采用这未用的6比特，用来携带第 一信息的状态信息。例如：其中5比特用于指示第一系统消息中第一标签值的取值，另1比特用于指示第一系统消息中除第一标签值之外的其他信息是否发生变更。
102、网络设备向终端设备发送通知信息。
具体的，网络设备在变更第一系统消息的周期内，或在变更第一系统消息的下一变更周期内发送通知信息给终端设备，本申请实施例不做限定。
103、终端设备接收通知信息。
104、终端设备根据通知信息变更本地存储的第一系统消息的内容。
具体的，若通知信息指示第一信息的取值，则终端设备将本地存储的第一系统消息中的第一信息的内容更新为通知信息中第一信息的取值。可选的，终端设备可继续接收网络设备发送的变更后的第一系统消息，也可不再接收网络设备发送的变更后的第一系统消息，本申请实施例不做限定。
若通知信息指示第一信息发生变更，且未指示第一信息的取值，则终端设备接收发送变更后的第一系统消息，根据接收到的第一系统消息变更本地存储的第一系统消息中相应的内容。
若通知信息指示第一信息的取值，以及指示第二信息是否发生变更，则终端设备首先确定第二信息是否发生变更。若通知信息指示第二信息未发生变更，则终端设备直接根据通知信息更新本地存储的第一系统消息中第一信息的内容。若通知信息指示第二信息发生变更，则终端设备接收变更后的第一系统消息，根据变更后的第一系统消息更新本地存储的第一系统消息。
本申请实施例提供一种系统消息指示的方法，若网络设备变更第一系统消息，那么网络设备生成通知信息，该通知信息用于指示第一信息的状态信息，第一信息为第一系统消息中至少一比特，并将该通知信息发送给终端设备。于是，终端设备可根据该通知信息更新本地存储的第一系统消息。相比较于现有技术中，网络设备仅向终端设备发送第一系统消息发生变更的通知，而终端设备接收到该通知后，仍需要读取变更后的第一系统消息的全部内容，工作效率低，时延大。而在本申请实施例中，若将第一系统消息中变更频繁的信息设置为第一信息，那么，则终端设备仅根据通知信息就可以更新本地存储的第一系统消息，有利于减少终端设备读取变更后第一系统消息的全部内容的几率，有利于提高终端设备的工作效率，降低时延，降低功耗，有利于节省成本。
如图4所示，下面以第一系统消息为MIB为例，结合具体的应用场景，对本申请实施例的方法进行举例说明。
201、网络设备向终端设备发送携带通知信息的消息。
具体的，可以采用专用消息或专用信道或专用信号携带通知信息，也可以采用现有的消息或信道或信号携带通知信息，例如可以采用直接指示消息或寻呼消息，本申请实施例不做限定。
示例性的，由于在NB-IoT中，第一标签值可以理解为MIB的版本号，当系统消息中任何一个信息(协议约定的一些特定信息除外，如接入承载控制信息等)发生变更时，第一标签值都会发生变更，即第一标签值发生变更的几率很高。因此，可以将第一信息设置为包含第一标签值，通知信息用于指示第一标签值的取值。具体的，可 将通知信息携带在直接指示消息中。由于MIB中第一标签值包含5比特，因此，可使用直接指示消息中未使用的比特中的5比特用于指示MIB中第一标签值的的取值。需要说明的是，这里的5比特仅仅是一种示例，本申请实施例并不限定指示第一信息的取值的具体比特数。
示例性的，考虑到MIB中可能出现除第一标签值之外的其他信息发生变更的情况，在将第一信息设置为第一标签值的同时，将MIB中除第一标签值之外的至少一比特设置为第二信息，第二信息具体可以包含系统帧号，和/或第一超帧号，和/或SIB1调度信息，和/或其他信息。那么，通知信息用于指示第一标签值变更内容，以及除第一标签值之外的第二信息是否发生变更。具体的，可使用直接指示消息中未使用的比特中的1比特用于指示MIB中第二信息是否发生变更。若该比特取值为“0”，表明MIB中第二信息未发生变更。若该比特取值为“1”，表明MIB中第二信息发生了变更。
示例性的，除了第一标签值之外，MIB中的SIB1调度信息也可能发生变更。那么，也可以将第一信息设置为第一标签值和SIB1调度信息，于是通知信息包括用于指示第一标签值的取值和SIB1调度信息的取值。具体的，可新增一条专用消息携带通知信息。其中5比特用于指示第一标签值的取值，其中如4比特用于指示SIB1调度信息的取值。需要说明的是，这里的5比特、4比特仅仅是一种示例，本申请实施例并不限定指示第一信息的取值和第二信息取值的具体比特数。此外，还可用1比特指示MIB中是否有除第一标签值和SIB1调度信息之外的第二信息发生变更，设置方法可参考上文所述，不再重复赘述。
202、终端设备接收携带通知信息的消息。
203、终端设备根据通知信息更新本地存储的MIB。
具体的，终端设备从接收到携带通知信息的消息中，获取通知信息。然后，根据该通知信息中的内容变更本地存储的MIB的相关内容。
示例性的，若通知信息仅包含指示MIB中第一标签值的取值，则终端设备可直接将本地存储的MIB中第一标签值更新为通知信息中第一标签值的取值。
示例性的，若通知信息中包含指示MIB中第一标签值的取值，以及MIB中第二信息是否变更的信息。则终端设备先确定MIB中第二信息是否发生变更。若第二信息未发生变更，则终端设备可直接根据通知信息更新本地存储的MIB中的第一标签值的取值。终端设备可不用再接收变更后的MIB。若第二信息发生变更，则终端设备接收变更后的MIB，根据接收到变更后的MIB更新本地存储的MIB的相关内容。
示例性的，若通知信息中包含指示MIB中第一标签值的取值，以及指示MIB中SIB1调度信息的取值。那么，终端设备可以直接根据通知信息更新本地存储的MIB中的第一标签值的取值和SIB1调度信息的取值。
若通知信息中还包含指示MIB中除第一标签值和SIB1调度信息之外的第二信息是否发生变更的信息，则终端设备先判断MIB中第二信息是否发生变更的信息。若第二信息未发生变更，则终端设备可直接根据通知信息更新本地存储的MIB中的第一标签值的取值和SIB1调度信息的取值。终端设备可不用再接收变更后的MIB。若第二信息发生变更，则终端设备接收变更后的MIB，根据接收到变更后的MIB更新本地存储的MIB的相关内容。
301、网络设备向终端设备发送携带通知信息的消息。
具体的，可以采用专用消息或专用信道或专用信号携带通知信息，也可以采用现有的消息或信道或信号携带通知信息，例如可以采用直接指示消息或寻呼消息，本申请实施例不做限定。
示例性的，由于在NB-IoT中，SIB1包含最多8个第二SI，而每一个第二SI对应一个2比特的第二标签值。并且第二标签值变更的几率较大。因此可以将第一信息设置为包含第二标签值。具体的，可新增一条专用消息用于携带通知信息。其中通知信息中包含N*2比特，其中N为SIB1中包含的第二SI的数量。通知信息中每2比特用于指示一个第二SI对应的第二标签值的取值。可选的，通知信息也可以包含N比特，每1比特用于指示一个第二SI对应的第二标签值是否发生变更。需要说明的是，这里的N*2比特仅仅是一种示例，本申请实施例并不限定指示第一信息的取值的具体比特数。
示例性的，考虑到SIB1中可能出现除第二标签值之外的其他信息发生变更的情况，在将第一信息设置为第二标签值的同时，将SIB1中除第二标签值之外的至少一比特设置为第二信息，第二信息具体可以包含第二超帧号，和/或第二SI调度信息，和/或其他信息。那么，即通知信息用于指示第二标签值变更内容，以及除第二标签值之外的第二信息是否发生变更。具体的，可使用专用消息中1比特用于指示SIB1中第二信息是否发生变更。若该比特取值为“0”，表明SIB1中第二信息未发生变更。若该比特取值为“1”，表明SIB1第二信息发生了变更。
示例性的，除了第二标签值之外，SIB1中的第二SI调度信息也可能发生变更。那么，也可以将第一信息设置为第二标签值和第二SI调度信息，于是通知信息包括用于指示第二标签值的取值和第二SI调度信息的取值。具体的，可专用消息中N*2比特用于指示第二标签值的取值，其它正整数个比特用于指示第二SI调度信息的取值。此外，还可用1比特指示SIB1中是否有除第二标签值和第二SI调度信息之外的其他信息发生变更，设置方法可参考上文所述，不再重复赘述。
302、终端设备接收携带通知信息的消息。
303、终端设备根据通知信息更新本地存储的SIB1。
具体的，终端设备从接收到携带通知信息的消息中，获取通知信息。然后，根据该通知信息中的内容变更本地存储的SIB1的相关内容。
示例性的，若通知信息仅包含指示SIB1中第二标签值的取值，则终端设备可直接将本地存储的SIB1中第二标签值更新为通知信息中第二标签值的取值。
示例性的，若通知信息中包含指示SIB1中第二标签值的取值，以及SIB1中除第二标签值之外第二信息是否变更的信息。则终端设备先确定SIB1中第二信息是否发生变更。若第二信息未发生变更，则终端设备可直接根据通知信息更新本地存储的SIB1中的第二标签值的取值。终端设备可不用再接收变更后的SIB1。若第二信息发生变更，则终端设备接收变更后的SIB1，根据接收到变更后的SIB1更新本地存储的SIB1的相关内容。
示例性的，若通知信息中包含指示SIB1中第二标签值的取值，以及指示SIB1中第二SI调度信息的取值。那么，终端设备可以直接根据通知信息更新本地存储的SIB1 中的第二标签值的取值和第二SI调度信息的取值。
若通知信息中还包含指示SIB1中除第二标签值和第二SI调度信息之外的第二信息是否发生变更的信息，则终端设备先判断SIB1中第二信息是否发生变更的信息。若第二信息未发生变更，则终端设备可直接根据通知信息更新本地存储的SIB1中的第二标签值的取值和第二SI调度信息的取值。终端设备可不用再接收变更后的SIB1。若第二信息发生变更，则终端设备接收变更后的SIB1，根据接收到变更后的SIB1更新本地存储的SIB1的相关内容。
上述主要从终端设备与网络设备交互的角度对本申请实施例提供的方案进行了介绍。可以理解的是，上述网络设备和终端设备为了实现上述功能，其包含了执行各个功能相应的硬件结构或软件模块。本领域技术人员应该很容易意识到，结合本文中所公开的实施例描述的各示例的单元及算法步骤，本申请能够以硬件或硬件和计算机软件的结合形式来实现。某个功能究竟以硬件还是计算机软件驱动硬件的方式来执行，取决于技术方案的特定应用和设计约束条件。专业技术人员可以对每个特定的应用来使用不同方法来实现所描述的功能，但是这种实现不应认为超出本申请的范围。
本申请实施例可以根据上述方法示例对网络设备和终端设备进行功能模块的划分，例如，可以对应各个功能划分各个功能模块，也可以将两个或两个以上的功能集成在一个处理模块中。上述集成的模块既可以采用硬件的形式实现，也可以采用软件功能模块的形式实现。需要说明的是，本申请实施例中对模块的划分是示意性的，仅仅为一种逻辑功能划分，实际实现时可以有另外的划分方式。
比如，在采用对应各个功能划分各个功能模块的情况下，图6示出了上述实施例中所涉及的网络设备60的一种可能的结构示意图。如图6所示，网络设备60包括：处理模块601和发送模块602。
其中，处理模块601用于支持网络设备60执行图3中的步骤101，发送模块602用于支持网络设备60执行图3中的步骤102。
或者，发送模块602用于支持网络设备60执行图4中的步骤201。
或者，发送模块602用于支持网络设备60执行图5中的步骤301。
在本申请实施例中，该网络设备以对应各个功能划分各个功能模块的形式来呈现，或者，该网络设备以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以包括特定应用集成电路(Application-Specific Integrated Circuit，ASIC)，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到网络设备60可以采用图2所示的网络设备20形式。比如，图6中的处理模块601可以通过图2的网络设备20中的处理器201和存储器202来实现。具体的，发送模块602可以通过由处理器201来调用存储器202中存储的应用程序代码来执行，本申请实施例对此不作任何限制。
由于本申请实施例提供的网络设备可用于执行上述的系统消息的指示方法，因此其所能获得的技术效果可参考上述方法实施例，本申请实施例在此不再赘述。
比如，在采用对应各个功能划分各个功能模块的情况下，图7示出了上述实施例中所涉及的终端设备70的一种可能的结构示意图。如图7所示，终端设备70包括： 接收模块701和处理模块702。
其中，接收模块701用于支持终端设备70执行图3中的步骤103，处理模块702用于支持终端设备70执行图3中的步骤104。
或者，接收模块701用于支持终端设备70执行图4中的步骤202；处理模块702用于支持终端设备70执行图4中的步骤203。
或者，接收模块701用于支持终端设备70执行图5中的步骤302；处理模块702用于支持终端设备70执行图4中的步骤303。
所述终端设备70还可以包括存储模块703、用于存储生成或处理的数据和程序。
其中，上述方法实施例涉及的各步骤的所有相关内容均可以援引到对应功能模块的功能描述，在此不再赘述。
在本申请实施例中，该终端设备以对应各个功能划分各个功能模块的形式来呈现，或者，该终端设备以采用集成的方式划分各个功能模块的形式来呈现。这里的“模块”可以包括特定应用集成电路(Application-Specific Integrated Circuit，ASIC)，电路，执行一个或多个软件或固件程序的处理器和存储器，集成逻辑电路，或其他可以提供上述功能的器件。在一个简单的实施例中，本领域的技术人员可以想到终端设备70可以采用图2所示的终端设备30形式。比如，图7中的处理模块701可以通过图2的终端设备30中的处理器301来实现。具体的，接收模块701可以通过由处理器301来调用存储器302中存储的应用程序代码来执行，本申请实施例对此不作任何限制。
由于本申请实施例提供的终端设备可用于执行上述的系统消息的指示方法，因此其所能获得的技术效果可参考上述方法实施例，本申请实施例在此不再赘述。
在上述实施例中，可以全部或部分地通过软件、硬件、固件或者其任意组合来实现。当使用软件程序实现时，可以全部或部分地以计算机程序产品的形式来实现。该计算机程序产品包括一个或多个计算机指令。在计算机上加载和执行计算机程序指令时，全部或部分地产生按照本申请实施例所述的流程或功能。所述计算机可以是通用计算机、专用计算机、计算机网络、或者其他可编程装置。所述计算机指令可以存储在计算机可读存储介质中，或者从一个计算机可读存储介质向另一个计算机可读存储介质传输，例如，所述计算机指令可以从一个网站站点、计算机、服务器或者数据中心通过有线(例如同轴电缆、光纤、数字用户线(Digital Subscriber Line，DSL))或无线(例如红外、无线、微波等)方式向另一个网站站点、计算机、服务器或数据中心进行传输。所述计算机可读存储介质可以是计算机能够存取的任何可用介质或者是包含一个或多个可以用介质集成的服务器、数据中心等数据存储设备。所述可用介质可以是磁性介质(例如，软盘、硬盘、磁带)，光介质(例如，DVD)、或者半导体介质(例如固态硬盘(Solid State Disk，SSD))等。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (38)

  1. 一种系统消息的指示方法，其特征在于，包括：
    网络设备生成通知信息，所述通知信息用于指示第一信息的状态信息，所述第一信息包括第一系统消息中至少一个比特，所述第一信息包含的比特数小于所述第一系统消息包含的比特数；
    所述网络设备向终端设备发送所述通知信息。
  2. 根据权利要求1所述的方法，其特征在于，所述通知信息用于指示第一信息的状态信息包括：
    所述通知信息用于指示所述第一信息是否发生变更；和/或，所述通知信息用于指示所述第一信息的取值。
  3. 根据权利要求1或2所述的方法，其特征在于，所述通知信息还用于指示第二信息是否发生变更，所述第二信息包括所述第一系统消息中除所述第一信息之外的至少一个比特。
  4. 根据权利要求1至3任一项所述的方法，其特征在于，所述第一系统消息为主信息块MIB或系统信息块SIB1。
  5. 根据权利要求4所述的方法，其特征在于，所述第一系统消息为MIB，所述第一信息包括第一标签值、系统帧号、第一超帧号、SIB1调度信息中至少一个。
  6. 根据权利要求3所述的方法，其特征在于，所述第一系统消息为SIB1，所述第一信息包括第二标签值、第二超帧号、第二系统消息调度信息中至少一个。
  7. 根据权利要求1-6任一项所述的方法，其特征在于，所述网络设备向终端设备发送通知信息包括：
    所述网络设备向所述终端设备发送直接指示消息，所述直接指示消息携带所述通知信息；
    或者，所述网络设备向所述终端设备发送寻呼消息，所述寻呼消息携带所述通知消息。
  8. 根据权利要求7所述的方法，其特征在于，所述通知信息用于指示第一标签值的取值；和/或，所述通知信息用于指示所述第一系统消息中除所述第一标签值之外的至少一个比特是否发生变更。
  9. 一种系统消息的指示方法，其特征在于，包括：
    终端设备接收网络设备发送的通知信息，所述通知信息用于指示第一信息的状态信息，所述第一信息包括第一系统消息中至少一个比特，所述第一信息包含的比特数小于所述第一系统消息包含的比特数；
    所述终端设备根据所述通知信息变更本地存储的第一系统消息的内容。
  10. 根据权利要求9所述的方法，其特征在于，所述通知信息用于指示第一信息的状态信息包括：
    所述通知信息用于指示所述第一信息的取值；和/或，所述通知信息用于指示所述第一信息是否发生变更。
  11. 根据权利要求9或10所述的方法，其特征在于，所述通知信息还用于指示第二信息是否发生变更，所述第二信息包括所述第一系统消息中除所述第一信息之外至 少一个比特。
  12. 根据权利要求9-11任一权利要求所述的方法，其特征在于，所述终端设备根据所述通知信息变更本地存储的第一系统消息的内容包括：所述终端设备读取所述通知信息中所述第一信息的取值，根据所述第一信息的取值对本地存储的第一系统消息进行更新。
  13. 根据权利要求9-12任一项所述的方法，其特征在于，所述第一系统消息为主信息块MIB或系统信息块SIB1。
  14. 根据权利要求13所述的方法，其特征在于，所述第一系统消息为MIB，所述第一信息包括第一标签值、系统帧号、第一超帧号、SIB1调度信息中至少一个。
  15. 根据权利要求14所述的方法，其特征在于，所述第一系统消息为SIB1，所述第一信息包括第二标签值、第二超帧号、第二系统消息调度信息中至少一个。
  16. 根据权利要求9-15任一项所述的方法，其特征在于，所述终端设备接收网络设备发送的通知信息包括：
    所述终端设备接收所述网络设备发送的直接指示消息，所述直接指示消息携带所述通知信息，
    或者，所述终端设备接收所述网络设备发送的寻呼消息，所述寻呼消息携带所述通知消息。
  17. 根据权利要求16所述的方法，其特征在于，所述通知信息用于指示第一标签值的取值；和/或，所述通知信息用于指示所述第一系统消息中除所述第一标签值之外的至少一个比特是否发生变更。
  18. 一种发送系统消息指示的装置，其特征在于，包括：处理模块和发送模块；
    所述处理模块，用于生成通知信息，所述通知信息用于指示第一信息的状态信息，所述第一信息包括第一系统消息中至少一个比特，所述第一信息包含的比特数小于所述第一系统消息包含的比特数；
    所述发送模块，用于向终端设备发送所述处理模块生成的所述通知信息。
  19. 根据权利要求18所述的装置，其特征在于，所述通知信息用于指示第一信息的状态信息包括：
    所述通知信息用于指示所述第一信息是否发生变更；和/或，所述通知信息用于指示所述第一信息的取值。
  20. 根据权利要求18或19所述的装置，其特征在于，所述通知信息还用于指示第二信息是否发生变更，所述第二信息为包括所述第一系统消息中除所述第一信息之外的至少一个比特。
  21. 根据权利要求18至20任一项所述的装置，其特征在于，所述第一系统消息为主信息块MIB或系统信息块SIB1。
  22. 根据权利要求21所述的装置，其特征在于，所述第一系统消息为MIB，所述第一信息包括第一标签值、系统帧号、第一超帧号、SIB1调度信息中至少一个。
  23. 根据权利要求20所述的装置，其特征在于，所述第一系统消息为SIB1，所述第一信息包括第二标签值、第二超帧号、第二系统消息调度信息中至少一个。
  24. 根据权利要求18-23任一项所述的装置，其特征在于，所述发送模块，用于 向所述终端设备发送直接指示消息，所述直接指示消息携带所述处理模块生成的所述通知信息；
    或者，所述发送模块，用于向所述终端设备发送寻呼消息，所述寻呼消息携带所述处理模块生成的通知消息。
  25. 根据权利要求24所述的装置，其特征在于，所述通知信息用于指示第一标签值的取值；和/或，所述通知信息用于指示所述第一系统消息中除所述第一信息之外的至少一个比特是否发生变更。
  26. 一种接收系统消息指示的装置，其特征在于，包括：处理模块、存储模块和接收模块；
    所述接收模块，用于接收所述网络设备发送的通知信息，所述通知信息用于指示第一信息的状态信息，所述第一信息包括第一系统消息中至少一个比特，所述第一信息包含的比特数小于所述第一系统消息包含的比特数；
    所述处理模块，用于根据所述接收模块接收的所述通知信息变更所述存储模块存储的第一系统消息的内容。
  27. 根据权利要求26所述的装置，其特征在于，所述通知信息用于指示第一信息的状态信息包括：
    所述通知信息用于指示所述第一信息的取值；和/或，所述通知信息用于指示所述第一信息是否发生变更。
  28. 根据权利要求26或27所述的装置，其特征在于，所述通知信息还用于指示第二信息是否发生变更，所述第二信息包括所述第一系统消息中除所述第一标签值之外的至少一个比特。
  29. 根据权利要求26-28任一项所述的装置，其特征在于，所述处理模块，还用于读取所述通知信息中所述第一信息的取值，根据所述第一信息的取值对所述存储模块存储的第一系统消息进行更新。
  30. 根据权利要求25-29任一项所述的装置，其特征在于，所述第一系统消息为主信息块MIB或系统信息块SIB1。
  31. 根据权利要求30所述的装置，其特征在于，所述第一系统消息为MIB，所述第一信息包括第一标签值、系统帧号、第一超帧号、SIB1调度信息中至少一个。
  32. 根据权利要求30所述的装置，其特征在于，所述第一系统消息为SIB1，所述第一信息包括第二标签值、第二超帧号、第二系统消息调度信息中至少一个。
  33. 根据权利要求25-32任一项所述的装置，其特征在于，所述接收模块，用于接收所述网络设备发送的直接指示消息，所述直接指示消息携带所述通知信息；
    或者，所述接收模块，用于接收所述网络设备发送的寻呼消息，所述寻呼消息携带所述通知信息。
  34. 根据权利要求33所述的装置，其特征在于，所述通知信息用于指示第一标签值的取值；和/或，所述通知信息用于指示所述第一系统消息中除所述第一标签值之外的至少一个比特是否发生变更。
  35. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机可以执行上述权利要求1-8任一所述的系 统消息的指示方法。
  36. 一种计算机可读存储介质，其特征在于，所述计算机可读存储介质中存储有指令，当其在计算机上运行时，使得计算机可以执行上述权利要求9-17任一所述的系统消息的指示方法。
  37. 一种通信装置，其特征在于，所述通信装置为权利要求1-8任一项所述的网络设备，或者为设置在网络设备中的芯片，所述通信装置包括：存储器，用于存储计算机可执行程序代码；通信接口，以及处理器，所述处理器与所述存储器、所述通信接口耦合；其中所述存储器所存储的程序代码包括指令，当所述处理器执行所述指令时，使所述通信装置执行权利要求1-8任一项所述网络设备所执行的方法。
  38. 一种通信装置，其特征在于，所述通信装置为权利要求9-17任一项所述的网络设备，或者为设置在网络设备中的芯片，所述通信装置包括：存储器，用于存储计算机可执行程序代码；通信接口，以及处理器，所述处理器与所述存储器、所述通信接口耦合；其中所述存储器所存储的程序代码包括指令，当所述处理器执行所述指令时，使所述通信装置执行权利要求9-17任一项所述网络设备所执行的方法。
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