WO2021062802A1 - Procédé de transmission d'informations de système et appareil de communication - Google Patents

Procédé de transmission d'informations de système et appareil de communication Download PDF

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Publication number
WO2021062802A1
WO2021062802A1 PCT/CN2019/109727 CN2019109727W WO2021062802A1 WO 2021062802 A1 WO2021062802 A1 WO 2021062802A1 CN 2019109727 W CN2019109727 W CN 2019109727W WO 2021062802 A1 WO2021062802 A1 WO 2021062802A1
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WIPO (PCT)
Prior art keywords
system information
updated
indication
information
sib1
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PCT/CN2019/109727
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English (en)
Chinese (zh)
Inventor
郑娟
李超君
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华为技术有限公司
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Priority to PCT/CN2019/109727 priority Critical patent/WO2021062802A1/fr
Priority to CN201980100313.5A priority patent/CN114365547B/zh
Publication of WO2021062802A1 publication Critical patent/WO2021062802A1/fr

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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

Definitions

  • This application relates to the field of wireless communication, and in particular to a method and communication device for transmitting system information.
  • 5G Fifth-Generation
  • NR New Radio
  • 5G technology has very diverse services, such as enhanced mobile broadband (eMBB) services, ultra-reliability low-latency communication (URLLC) services, and large-scale machine communication ( massive machine-type communication (mMTC) business, etc.
  • eMBB enhanced mobile broadband
  • URLLC ultra-reliability low-latency communication
  • mMTC massive machine-type communication
  • large-scale machine communication technology is especially suitable for video surveillance, supply chain tracking, electronic payment and other fields, and has high practical value.
  • terminal devices are usually required to support lower power consumption, which can reduce the user's cost of use, thereby improving the user experience of the terminal device. Therefore, in the research process for large-scale machine communication technology, how to reduce the power consumption of terminal equipment has become a major research hotspot.
  • network devices periodically send (mainly broadcast) system information.
  • the network equipment will also periodically update the system information it sends.
  • the terminal device that has completed the initial connection with the network device, in some cases, it needs to re-acquire the system information sent by the network device, and further realize the connection with the network based on the re-acquired system information. Data transmission of the device. For example, when the terminal device detects that the downlink quality is poor, it will perform a resynchronization operation. In the resynchronization process, the terminal device needs to reacquire the system information sent by the network device.
  • the system information sent by the network device has not been updated
  • the system information obtained by the terminal device during the resynchronization process is the same as the system information obtained before the resynchronization, that is, the terminal device has repeatedly obtained
  • the same system information will inevitably generate some unnecessary power consumption, and also reduce the efficiency of data transmission between the terminal device and the network device, and reduce the user experience of the terminal device. Therefore, in the process of acquiring system information, how to reduce the power consumption of the terminal device has become one of the problems that need to be solved.
  • This application provides a system information transmission method and communication device. Using the method provided in this application can reduce the power consumption generated by the terminal device acquiring system information, and can improve the efficiency of acquiring system information of the terminal device and the user experience.
  • an embodiment of the present application provides a method for transmitting system information.
  • the terminal equipment detects the physical downlink control channel PDCCH.
  • the PDCCH carries indication information, and the indication information is used to indicate whether the first system information from the network device is updated. If the terminal device determines that the above-mentioned indication information indicates that the first system information is updated, it receives the updated first system information.
  • the terminal device can determine whether the system information is updated based on the instruction information issued by the network device, so as to only receive the updated system information. In this way, the repeated acquisition of the same system information can be avoided, the power consumption generated by the terminal device for acquiring the system information is reduced, and the efficiency of acquiring the system information of the terminal device and the user experience are improved.
  • the foregoing first system information includes a system information block type SIB1 and a first set of system information blocks other than the foregoing SIB1, and the foregoing first system information block set includes at least A first system information block.
  • the indication identifier included in the indication information is a reserved bit in the downlink control information DCI for scheduling the SIB1 or a reserved bit in the DCI for scheduling paging information. It is carried in the above-mentioned PDCCH.
  • the terminal device determines that the indication information indicates that the above-mentioned SIB1 is updated, the updated SIB1 is received at the first moment. And/or, if the terminal device determines that the indication information indicates that the first system information block set is updated, it receives the updated first system information block set at the second time.
  • a first indicator and a second indicator are used to determine whether the SIB1 and the first system information block set included in the first system information are updated, which can avoid the terminal when the SIB1 or the first system information block set is not updated. The occurrence of the situation that the device repeatedly obtains the SIB1 or the first system information block set can reduce the power consumption of the terminal device.
  • the terminal device determines that the indication information indicates that the above-mentioned SIB1 is updated, the updated SIB1 is received at the first moment. And/or, if the terminal device determines that the indication information indicates that at least one first system information block in the first system information block set is updated, at the second time, the updated at least one first system information block is received.
  • the terminal device determines in more detail whether SIB1 and each first system information block included in the first system information block have been updated through the multiple indicator identifiers contained in the instruction information, and can more accurately determine the updated system information block. Therefore, repeated reading of the system information block can be avoided more effectively, and the power consumption of the terminal device can be further reduced.
  • the terminal device determines the at least one first system information block indicated corresponding to the indication information according to the obtained indication rule, and the indication rule corresponds to the terminal device.
  • Different interpretations of the same indication information based on different indication rules can enable the terminal device to obtain more indication results through limited indication information, which can reduce the overhead of indication information.
  • the terminal device may also obtain access indication information, and determine whether the network device allows its access according to the foregoing access indication information. Determine whether the network device is allowed to access according to the access instruction information, which can avoid invalid search operations caused by the network device not allowing access, and can save the power consumption of the terminal device.
  • the terminal device can also obtain the above information by demodulating the reference signal DMRS, the reserved bits in the time information carried by the synchronization signal block SSB, or the reserved bits of the main system information block MIB. Access instructions.
  • the embodiments of the present application provide a method for transmitting system information.
  • the network device determines the instructions.
  • the above-mentioned indication information is used to indicate whether the first system information is updated.
  • the network device sends the above-mentioned instruction information through the PDCCH.
  • the network device determines the indication information according to whether the system information is updated, and sends the indication information to the terminal device, so that the terminal device can receive only the updated system information according to the indication information, thereby avoiding
  • the repeated acquisition of the same system information reduces the power consumption generated by the terminal device for acquiring the system information, and improves the efficiency of acquiring the system information of the terminal device and the user experience.
  • the network device may also send updated first system information.
  • the foregoing first system information includes a system information block type 1 SIB1 and a first set of system information blocks other than the foregoing SIB1, and the foregoing first system information block set includes at least one The first system information block.
  • the indication information is the bit status of the reserved bits in the DCI for scheduling the SIB1 or the reserved bits in the DCI for scheduling paging information, and the DCI is carried on the PDCCH in.
  • the network device may send an indication rule corresponding to the terminal device, and the indication rule is used to determine the at least one first system information block indicated by the indication information.
  • the network device uses the same indicator to indicate whether different first system information blocks are updated, which can save communication resources.
  • the network device may determine access indication information, where the above-mentioned access indication information is used to indicate whether the terminal device is allowed to access the network device.
  • the network device may also send the above-mentioned access instruction information.
  • the network device may send the aforementioned access indication information through the reserved bits in the time information carried by the demodulation reference signal DMRS, the synchronization signal block SSB, or the reserved bits of the MIB.
  • an embodiment of the present application provides a communication device.
  • the communication device may be the terminal device itself, or may be a component or module such as a chip inside the terminal device.
  • the communication device includes a unit for executing the system information transmission method provided by any one of the possible implementations of the first aspect, and therefore can also achieve the beneficial effects of the system information transmission method provided by the first aspect ( Or advantages).
  • an embodiment of the present application provides a communication device.
  • the communication device may be the network device itself, or may be a component or module such as a chip inside the network device.
  • the communication device includes a unit for executing the system information transmission method provided by any one of the possible implementations of the second aspect, so it can also achieve the beneficial effects of the system information transmission method provided by the second aspect (Or advantages).
  • an embodiment of the present application provides a communication device, and the communication device may be a terminal device.
  • the communication device includes at least one memory and a processor.
  • the processor is configured to call the code stored in the memory to execute the system information transmission method provided by any one of the feasible implementation manners in the first aspect.
  • an embodiment of the present application provides a communication device, and the communication device may be a network device.
  • the communication device includes at least one memory and a processor.
  • the processor is configured to call the code stored in the memory to execute the system information transmission method provided by any one of the feasible implementation manners in the second aspect.
  • an embodiment of the present application provides a communication device, and the communication device may be a terminal device.
  • the communication device includes: at least one processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the above code instructions to implement the system information transmission method provided by any one of the feasible implementation modes of the above first aspect, and can also achieve the beneficial effects of the system information transmission method provided by the above first aspect (Or advantages).
  • an embodiment of the present application provides a communication device, and the communication device may be a network device.
  • the communication device includes: at least one processor and an interface circuit.
  • the interface circuit is used to receive code instructions and transmit them to the processor.
  • the processor is used to run the above code instructions to implement the system information transmission method provided by any one of the feasible implementation modes of the above second aspect, and can also achieve the beneficial effects of the system information transmission method provided by the above second aspect (Or advantages).
  • an embodiment of the present application provides a computer-readable storage medium that stores instructions in the computer-readable storage medium, and when the instructions are run on a computer, any one of the feasible implementations in the first aspect mentioned above is realized
  • the system information transmission method provided by the method can also realize the beneficial effects (or advantages) of the system information transmission method provided in the first aspect.
  • an embodiment of the present application provides a computer-readable storage medium with an instruction stored in the computer-readable storage medium, and when the instruction runs on a computer, any one of the possible implementations of the second aspect mentioned above is realized
  • the system information transmission method provided by the method can also achieve the beneficial effects (or advantages) provided by the system information transmission method provided in the second aspect.
  • an embodiment of the present application provides a computer program product containing instructions.
  • the computer program product runs on a computer, the computer can execute the system information transmission method provided in the first aspect, and the first aspect can also be implemented.
  • the beneficial effects of the system information transmission method provided by the aspect are not limited to:
  • the embodiments of the present application provide a computer program product containing instructions.
  • the computer program product When the computer program product is run on a computer, the computer can execute the system information transmission method provided in the second aspect, and the second aspect can also be implemented.
  • the beneficial effects of the system information transmission method provided by the aspect are not limited to the twelfth aspect.
  • embodiments of the present application provide a communication system, which includes the communication device described in the third and fourth aspects above, or the communication device described in the fifth and sixth aspects above, Or, the communication device described in the seventh aspect and the eighth aspect described above.
  • Using the method provided in the embodiments of the present application can reduce the power consumption generated by the terminal device acquiring system information, and can improve the efficiency of acquiring system information of the terminal device and the user experience.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • FIG. 2 is a schematic flowchart of a method for transmitting system information according to an embodiment of the present application
  • FIG. 3 is a schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 4 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 5 is another schematic structural diagram of a communication device provided by an embodiment of the present application.
  • FIG. 6 is a schematic diagram of another structure of a communication device provided by an embodiment of the present application.
  • MTC code division multiple access
  • WCDMA wideband code division multiple access
  • GPRS General Packet Radio Service
  • LTE Long Term Evolution
  • FDD Frequency Division Duplex
  • TDD Time Division Duplex
  • UMTS Universal mobile telecommunication system
  • WiMAX worldwide interoperability for microwave access
  • 5G fifth generation
  • NR new radio
  • the terminal equipment in the embodiments of this application may refer to user equipment, access terminals, user units, user stations, mobile stations, mobile stations, remote stations, remote terminals, mobile equipment, user terminals, terminals, wireless communication equipment, user agents, or User device.
  • the terminal device can also be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA), with wireless communication Functional handheld devices, computing devices or other processing devices connected to wireless modems, in-vehicle devices, wearable devices, terminal devices in 5G networks, or terminals in the public land mobile network (PLMN) that will evolve in the future Devices, etc., are not limited in the embodiment of the present application.
  • SIP session initiation protocol
  • WLL wireless local loop
  • PDA personal digital assistant
  • the network device in the embodiment of the present application may be a device used to communicate with terminal devices, and the network device may be a global system of mobile communication (GSM) system or code division multiple access (CDMA)
  • GSM global system of mobile communication
  • CDMA code division multiple access
  • the base transceiver station (BTS) in the LTE system can also be the base station (NodeB, NB) in the wideband code division multiple access (WCDMA) system, or the evolutional base station (evolutional base station) in the LTE system.
  • NodeB, NB base station
  • WCDMA wideband code division multiple access
  • evolutional base station evolutional base station
  • nodeB eNB or eNodeB
  • it can also be a wireless controller in the cloud radio access network (CRAN) scenario
  • the network device can be a relay station, an access point, a vehicle-mounted device, a wearable device, and 5G
  • the network equipment in the network or the network equipment in the future evolved PLMN network, etc., are not limited in the embodiment of the present application.
  • FIG. 1 is a schematic structural diagram of a communication system provided by an embodiment of the present application.
  • the communication system includes network equipment and terminal equipment.
  • the network device can establish a connection with the terminal device through a wired connection, a wireless connection, or other connection methods.
  • the communication system may include one or more network devices, and may include one or more terminal devices (such as terminal device 1 to terminal device 6 in FIG. 1).
  • network devices periodically broadcast system information to various terminal devices.
  • the system information broadcast by the network device can be understood as the high-level information sent by the network device through broadcast.
  • the foregoing system information may include the following information: master information block (MIB) and system information block (SIB).
  • MIB master information block
  • SIB system information block
  • the above system information block can be divided into system information block type 1 (system information block type 1, SIB1), system information block type 2 (system information block type 2, SIB 2), and system information block type 1.
  • Type three system information block type3, SIB3 and so on.
  • the network equipment will also periodically update the system information it sends. For a certain terminal device, in some cases, it needs to reacquire the system information sent by the network device, and further realize data transmission with the network device according to the reacquired system information.
  • the terminal device when the system information sent by the network device has not been updated, the terminal device will still obtain the same system information repeatedly, which will inevitably generate some unnecessary power consumption, and also reduce the communication between the terminal device and the network device.
  • the data transmission efficiency reduces the user experience of the terminal device.
  • the main technical problem solved by the embodiments of the present application is: how to reduce the power consumption of the terminal device during the transmission of system information, so as to improve the applicability and user experience of the terminal device.
  • FIG. 2 is a schematic flowchart of a method for transmitting system information according to an embodiment of the present application.
  • This transmission method is suitable for the communication system shown in FIG. 1.
  • This transmission method is suitable for scenarios where terminal equipment and network equipment have completed initial access. It can be seen from Figure 2 that the method includes the following steps:
  • the network device determines the indication information.
  • the network device may determine the indication information corresponding to the first system information according to the update status of the first system information sent by the network device.
  • the above-mentioned indication information is used to indicate whether the above-mentioned first system information is updated.
  • the foregoing first system information may include SIB1 and a set of first system information blocks other than SIB1.
  • the foregoing first system information block set includes at least one first system information block.
  • the foregoing first system information block set may include multiple first system information blocks such as SIB2 and SIB3.
  • the above-mentioned first system information can be understood as a subset of the above-mentioned system information, and the above-mentioned MIB may not be included in the first system information, which can also reduce the overhead of the indication information and ensure the indication Reliability of information transmission.
  • the cost of crystal oscillators is generally relatively low. This requires machine terminal equipment to track the time information of network equipment in real time, and time information is generally contained in MIB, so machine terminal equipment Need to read MIB information in real time.
  • the indication information in the embodiment of the present application may not indicate whether the MIB is updated, which can save indication information overhead and ensure the transmission performance of the indication information.
  • SIB1 can be understood as necessary system information required for data transmission between a terminal device and a network device.
  • SIB1 may include random access channel (RACH) configuration information or scheduling information corresponding to other system information SI (that is, the first system information block set described above), and other system information SI can also be understood as System information blocks other than SIB1.
  • RACH random access channel
  • SIB1 may also be understood as System information blocks other than SIB1.
  • the name of SIB1 may be different.
  • PBCH physical broadcast channel
  • System information blocks other than SIB1 can be understood as other system information broadcasted by network equipment.
  • the predefined can be understood as defined by the protocol.
  • Signaling configured or pre-configured can be understood as configured by high-level or physical layer signaling.
  • High-level signaling may include, for example, radio resource control (RRC) signaling, medium access control (medium access control, MAC) control element (CE), and radio link control (RLC).
  • RRC radio resource control
  • MAC medium access control
  • RLC radio link control
  • the physical layer signaling may include, for example, downlink control information (DCI), signaling transmitted through a downlink physical layer channel, etc.
  • the physical downlink channel may be, for example, a physical downlink control channel (PDCCH) or physical downlink. Shared channel (physical downlink shared channel, PDSCH), etc.
  • the embodiment of the application does not limit the type and name of the physical downlink control channel, which are collectively referred to as PDCCH.
  • the physical downlink control channel is a channel used to carry downlink control information, for example, NR-PDCCH and newly defined in future communication protocols Other channels whose functions are similar to the physical downlink control channel.
  • embodiments of the present application provide multiple implementation manners for determining the indication information by a network device, and these multiple implementation manners will be specifically described below.
  • the indication information is mainly used to indicate whether the object of the first system information is updated. That is, as long as the SIB1 or any one of the first system information blocks has been updated, the network device can determine that the first system information has been updated.
  • the above-mentioned indication information includes the first indication identifier.
  • the network device may determine whether the SIB1 included in the first system information and at least one first system information block are updated according to its system configuration information or system log information. If the network device determines that the SIB1 or any one of the at least one first system information block has been updated, the first indication flag may be set to the first state.
  • the first state of the first indicator is used to indicate that the first system information block has been updated
  • the second state of the first indicator is used to indicate that the first system information block has not been updated.
  • the first state and the second state are only used to indicate the first indicator identifiers with different values or different implementation forms, and do not have other limiting functions. The same applies to the following, and will not be repeated.
  • the first indication identifier is an indication bit. If the network device determines that any one of the foregoing SIB1 or at least one first system information block has been updated, the indication bit may be set to 1. If the network device determines that none of the above-mentioned SIB1 and at least one first system information block is updated, the indication bit may be set to 0.
  • the network device may also determine whether the SIB1 included in the first system information and at least one first system information block are updated according to its system configuration information or system log information. If the network device determines that any one of the SIB1 or at least one first system information block has been updated, the first indication identifier may be modified from the original first state to the second state.
  • the above-mentioned first state is the state of the first indicator determined by the network device last time after determining whether the first system information has been updated according to its system configuration information or system log information.
  • this implementation is to indicate whether the first system information has been updated through whether the state of the first indication flag has changed. For example, suppose that the first indication identifier is an indication bit.
  • the value of the indicator bit can be modified from 0 to 1.
  • the network device may modify the value of the indication bit from 1 to 0. If the network device determines that SIB1 or any one of the first system information blocks in the first system information block set has not been updated, the network device may not modify the value of the indication bit.
  • a first indicator is used to uniformly indicate whether the first system information is updated, which can avoid the situation that the terminal device repeatedly obtains the first system information when the first system information is not updated, and can reduce the power consumption of the terminal device .
  • the indication information is mainly used to indicate whether the SIB1 included in the first system information and/or the first system information block set has been updated. That is, as long as the SIB1 and/or any one of the first system information blocks are updated, the network device can determine that the SIB1 and/or the first system information block set has been updated.
  • the above indication information includes a first indication identifier and a second indication identifier. The first indication identifier and the second indication identifier are respectively used to indicate SIB1 and whether the first system information block set has been updated.
  • the first indication identifier is used to indicate Whether SIB1 is updated
  • the second indicator is used to indicate whether the first system information block set is updated
  • the first indicator is used to indicate whether the first system information block set is updated
  • the second indicator is used to indicate whether SIB1 An update occurs.
  • the indication information is used to indicate whether the SIB1 and the first system information block set are updated is taken as an example to briefly describe the process of determining the indication information by the network device.
  • the network device may determine whether the SIB1 included in the first system information and at least one first system information block are updated according to its system configuration information or system log information. Taking the first indicator and the second indicator respectively indicating whether the SIB1 and the first system information block set are updated as an example, if the network device determines that the SIB1 is updated, the first indicator can be set to the first state. Alternatively, if the network device determines that any one of the at least one first system information block has been updated, the second indication flag may be set to the first state. If the terminal device determines that neither the SIB1 nor any one of the at least one first system information block has been updated, the first indicator and the second indicator can be set to the second state.
  • the first indicator is the indicator bit A
  • the first indicator is the indicator bit B
  • the first indicator bit A can be set to 1
  • the second indicator bit B can be set to 0.
  • the network device may also determine whether the SIB1 included in the first system information and at least one first system information block are updated according to its system configuration information or system log information. If the network device determines that the SIB1 is updated, the first indication identifier can be modified from the original first state to the second state. If the network device determines that any one of the at least one first system information block has been updated, the second indication identifier may be modified from the original first state to the second state.
  • the first state is the first state determined by the network device after determining whether SIB1 and the first system information block set have been updated based on its system configuration information or system log information. The status of the indicator and the second indicator.
  • the SIB1 or the first system information block is updated through whether the status of the first indicator and the second indicator are changed. For example, suppose that the first indicator is the first indicator bit A, and the second indicator is the second indicator bit B. If the network device determines that SIB1 is updated, the value of the first indicator bit A can be modified from 0 to 1. If the network device determines that any one of the first system information blocks has been updated, the value of the second indicator bit B can be modified from 0 to 1. If the network device determines that SIB1 is not updated, the network device does not modify the value of the first indication bit A. If the network device determines that any one of the at least one first system information block has not been updated, the network device does not modify the value of the second indication bit B.
  • a more detailed indication of whether the SIB1 included in the first system information and the first system information block set have been updated through a first indication identifier and a second indication identifier can prevent the SIB1 or the first system information block set from being updated.
  • the power consumption of the terminal device can be reduced.
  • the indication information is mainly used to indicate whether the SIB1 is updated, and whether at least one first system information block in the first system information block set is updated.
  • the above indication information can not only indicate whether the SIB1 is updated, but also specifically indicate which one or several of the first system information blocks in the first information block set have been updated.
  • the foregoing first system information block set includes three first system information blocks, SIB2, SIB3, and system information block type 4 (system information block type 4, SIB4). It is assumed that the above-mentioned indication information includes a first indication identifier and a second indication identifier.
  • the first indicator can be used to indicate whether SIB1 is updated
  • the second indicator can be used to indicate whether any one or more of the three first system information blocks, SIB2, SIB3, and SIB4, has occurred. Updated.
  • the network device can determine whether the SIB1, SIB2, SIB3, and SIB4 are updated according to its system configuration information or system log information. If the network device determines that the above-mentioned SIB1 is updated, the first indication flag may be set to the first state. If the network device determines that any one or more of the SIB2, SIB3, or SIB4 is updated, the second indication flag may be set to the first state. If the terminal device determines that none of the SIB1, SIB2, SIB3, and SIB4 have been updated, it can set both the above-mentioned first indicator and second indicator settings to the second state.
  • the indication information includes a first indication identifier, a second indication identifier, a third indication identifier, and a fourth indication identifier.
  • the first indicator can be used to indicate whether the SIB1 has been updated, and the second indicator, the third indicator, and the fourth indicator can be used to indicate whether the SIB2, SIB3, and SIB4 have been updated, respectively.
  • the first indication flag may be set to the first state if the network device determines that the above-mentioned SIB1 is updated according to its system configuration information or system log information, etc.
  • the network device determines that any one or more of SIB2, SIB3, or SIB4 has been updated according to its system configuration information or system log information, it can set the second indicator and third indicator corresponding to the updated SIB2, SIB3, or SIB4 The flag or the fourth indication flag is set to the first state. If the terminal device determines that SIB1, SIB2, SIB3, and SIB4 are all updated, it can set the above-mentioned first indicator, second indicator, third indicator, and fourth indicator to the second state.
  • the network device may indicate that a certain system information block has been updated by changing the status of the indicator included in the indicator information.
  • the instruction information includes the first indicator and the second indicator
  • the network device determines that the above-mentioned SIB1 is updated
  • the first indicator can be changed from the original The first state is modified to the second state.
  • the second indication identifier may be modified from the original first state to the second state. If the terminal device determines that none of the SIB1, SIB2, SIB3, and SIB4 has been updated, the state of the first indicator and the second indicator is kept unchanged.
  • the network device determines that the above-mentioned SIB1 is updated according to its system configuration information or system log information, it can change The first indicator is changed from the original first state to the second state. If the network device determines that any one or more of SIB2, SIB3, or SIB4 has been updated according to its system configuration information or system log information, it can set the second indicator and third indicator corresponding to the updated SIB2, SIB3, or SIB4 The identifier or the fourth indicator is modified from the original first state to the second state. If the terminal device determines that none of the SIB1, SIB2, SIB3, and SIB4 has been updated, it maintains the states of the first indicator, the second indicator, the third indicator, and the fourth indicator.
  • the first states corresponding to different first system information blocks may be different or the same, and the second states corresponding to different first system information blocks may be different or the same. This is because the update frequency of different first system information blocks may be different. Therefore, at the same moment, the first state and/or the second state corresponding to different first system information blocks may be different.
  • the first states corresponding to different indication marks may be the same or different, and are not specifically limited.
  • the more detailed indication SIB1 included in the indication information and whether each first system information block included in the first system information block has changed can enable the terminal device to more accurately determine the updated The system information block, so that the terminal device can more effectively avoid repeated reading of the system information block, and can further reduce the power consumption of the terminal device.
  • SIB1 contains the scheduling information corresponding to the first system information block set
  • the above scheduling information is used by the terminal device and the network device to transmit the information included in the first system information block set.
  • the scheduling information may include at least one of the following: time information for transmitting the first system information block, frequency resources for transmitting the first system information block, coding information, modulation information, and the like.
  • the time information for transmitting the first system information block can be expressed as when the network device sends the first system information block.
  • the frequency resource for transmitting the first system information block may be expressed as the frequency band on which the network device transmits the first system information block.
  • the foregoing indication information may also include an identifier for indicating whether the scheduling information of the first system information set included in the SIB1 is updated (for the convenience of distinction, the fifth indication identifier will be substituted for the description below).
  • the network device can also determine whether the scheduling information is updated according to its system configuration information or system log information, and pass the foregoing first The status of the five flags indicates whether the scheduling information is updated. The specific process can be referred to the previous article, so I won't repeat it here.
  • the network device may indicate that the SIB1 is not updated and the first system information block set is updated through the above-mentioned first indicator and the second indicator respectively, and at the same time use the fifth indicator to indicate that the scheduling information of the first system information block set is updated.
  • the terminal device may not obtain SIB1 again, but obtain the first system information block included in the first system information block set according to the new scheduling information.
  • the new scheduling information may be predefined (For example, standard protocol specifications) or pre-configured (for example, indicated by high-level signaling or physical layer signaling).
  • the network device updates the scheduling information based on the system configuration and other reasons.
  • the network device can update the scheduling information of the first system information block based on the data transmission efficiency to avoid collisions between system messages and other data transmission messages.
  • the first system information block included in a system information block set has not changed. In this case, through this implementation manner, it is possible to prevent the terminal device from repeatedly interpreting SIB1 and the first system information block included in the first system information block set. , Thereby reducing the power consumption of terminal equipment.
  • the fifth indicator is combined with the fifth indicator to indicate whether the scheduling information of the first system information block set is updated, which can prevent the terminal device from repeatedly obtaining SIB1 or the first system information
  • the block set also prevents the terminal device from repeatedly extracting the above-mentioned scheduling information from the SIB1, which can further reduce the power consumption of the terminal device and improve the efficiency of the terminal device to obtain the first system information.
  • the foregoing first system information block set may include multiple first system information blocks, and for different types of terminal devices, the first system information blocks that need to be interpreted may be different. For example, for the first type of terminal device, it may only need to interpret SIB2 and SIB3, other first system information blocks may not be interpreted, and for the second type of terminal device, it may only need to interpret SIB4 And (system information block type5, SIB5) is enough, and other first system information blocks need not be interpreted.
  • the types of terminal devices can be divided in multiple ways. For example, it can be divided according to the function of the terminal device. Or, according to the equipment capabilities of the terminal equipment. Or, according to the type of service supported by the terminal device.
  • the bandwidth capability of the terminal device can be classified according to the types of terminal devices, which are not specifically limited in this application.
  • terminal devices that support eMBB services, terminal devices that support URLLC services, and terminal devices that support mMTC services can be regarded as different types of terminal devices.
  • different types of terminal devices can be distinguished according to the maximum channel bandwidth supported by the terminal device.
  • the maximum channel bandwidth supported by the terminal device is the bandwidth capability of the terminal device, that is, the maximum frequency resource that can be used when the terminal device performs data transmission.
  • the maximum frequency resource that can be used by the terminal device is continuous in the frequency domain.
  • the maximum channel bandwidth supported by the terminal device is the maximum frequency resource that the terminal device can use simultaneously on a carrier. For example, if the bandwidth capability of a terminal device is 5MHz, it means that when data transmission (including the reception of downlink data and/or the transmission of uplink data) between the terminal device and the network device, the maximum can be scheduled in the 5MHz frequency band .
  • the transmission bandwidth corresponding to this 5MHz frequency band needs to remove the guard bandwidth.
  • terminal devices with a bandwidth capability less than a specific threshold can be regarded as one type of terminal device, and terminal devices with a bandwidth capability greater than the specific threshold can be regarded as another type of terminal equipment.
  • the specific threshold here can be pre-defined or pre-configured.
  • the network device may use the same indication identifier to indicate whether different first system information blocks are updated according to different indication rules.
  • the above indication rule represents the correspondence between the above indication information and one or more first system information blocks in the first system information block set.
  • the indication rule it can determine which one or several first system information blocks in the first system information block set correspondingly indicate the received indication information.
  • the different first system information blocks indicated by the same indication identifier may be updated synchronously, but it should be noted that the time positions of the different first system information blocks sent after the update may be the same or different.
  • the above indication information includes a first indication identifier and a second indication identifier
  • the first indication identifier is used to indicate whether SIB1 is updated
  • the second indication identifier may be used to indicate SIB2 and SIB2 for the first type of terminal device.
  • SIB3 is updated, for the second type of terminal device, it can be used to indicate whether SIB4 and/or SIB5 is updated, and the corresponding relationship between the second indication identifier and the different first system information block (or, it can be It is understood that the indication rule corresponding to the second indication identifier) may be pre-configured.
  • the network device determines that SIB1 has been updated, SIB2 and SIB4 have been updated, and SIB3 and SIB5 have not been updated, then the network device can set the above-mentioned first indication flag to the first state for Indicate that SIB1 is updated, set the second indicator to the first state to indicate that SIB2 and/or SIB4 is updated, and set the third indicator to the second state to indicate that SIB3 and SIB5 are not updated.
  • the network device needs to follow the predefined corresponding to the first indicator, the second indicator, and the third indicator.
  • the indication rule is used to indicate that the first indicator of the first indicator, the second indicator, and the third indicator is used to indicate whether the SIB1 is updated.
  • the second indication identifier and the third indication identifier may be used for the first type terminal device to indicate whether SIB2 and SIB3 are updated respectively.
  • the second type of terminal equipment it can be used to indicate whether SIB4 and SIB5 are updated respectively, so that subsequent different types of terminal equipment can check the above-mentioned first indicator, second indicator, and third indicator according to the above-mentioned indicator rules. Perform different interpretations.
  • the network device uses the same indicator to indicate whether different first system information blocks are updated, which can save communication resources.
  • first system information block sets satisfy the following characteristics: If the first system information block set X and the first system information block set Y are included in the first system information block If at least one first system information block is different, it can be considered that the first system information block set X and the first system information block Y are different, wherein the first system information block set X includes at least one first system information block, The first system information block set Y includes at least one first system information block.
  • the network device may also use different communication resource indicators to indicate whether different first system information blocks are updated.
  • the communication resources here include the resources occupied by the channel carrying the indication information. Specifically, they may include at least one of the following: time resources, frequency resources, code division resources, radio network temporary identity (RNTI), bearer indication The size of the data transmitted by the information channel.
  • RNTI radio network temporary identity
  • the network device uses the first indication identifier and the second indication identifier to indicate whether SIB1 and the first system information block set X are updated at time T1.
  • the first indicator and the second indicator can be used to respectively indicate whether the SIB1 and the first system information block set Y are updated.
  • the status of the second indication identifier sent by the network device at different times may be determined by whether different sets of first system information blocks are updated, but they all share the second indication identifier to indicate.
  • different types of terminal devices can determine the time to receive the indication information according to predefined criteria or pre-configured information.
  • the network device can also use the same indicator on other different communication resources to indicate whether different first system information blocks have been updated. For the specific process, please refer to the network device used on different time resources as described above. The process of using the same indicator to indicate whether different first system information blocks have been updated will not be repeated here.
  • the network device may also determine the access indication information before determining the foregoing indication information.
  • the access indication information is used to indicate whether it allows the terminal device to access.
  • the above-mentioned access indication information may include a sixth indication identifier.
  • the network device can determine whether it allows the terminal device to access according to the current network status and the location of the terminal device and other information. It can be understood that, in actual applications, the network device can also determine whether it allows the terminal device to access according to other information, which is not specifically limited in this application. If the network device determines that the terminal device is allowed to access, the above-mentioned sixth indication flag is set to the first state. If the network device determines that the terminal device is not allowed to access, the above-mentioned sixth indication flag is set to the second state.
  • the network device may send the foregoing access instruction information.
  • the network device may send the aforementioned access indication information through a demodulation reference signal (DMRS), that is, different access indication information corresponds to different DMRS.
  • DMRS demodulation reference signal
  • the DMRS may be used for demodulation of a physical broadcast channel PBCH channel, or may be used for demodulation of a data channel or a control channel that meets a quasi-colocation (QCL) relationship with the PBCH.
  • QCL quasi-colocation
  • the network device may also send the above-mentioned access indication information through reserved bits in the time information carried in a synchronization signal block (SSB).
  • SSB synchronization signal block
  • the time information carried by the above SSB is time information related to timing that is additionally added when the physical broadcast channel (PBCH) is processed at the physical layer.
  • PBCH physical broadcast channel
  • the time information generally occupies 8 bits, of which the lower two bits are reserved bits.
  • the network device may also send the aforementioned access indication information through a spare bit of the MIB of the main system information block.
  • the spare bit and the reserved bit are equivalent and can be used interchangeably, and the embodiment of the present application does not specifically limit it.
  • the network device may determine the way of bearing the access indication information according to its working frequency range.
  • Table 1-1 is a bearing mode indication table provided by the embodiment of the present application. The table lists the bearer modes that can be used for the access indication information in different frequency ranges.
  • the working frequency range of the network equipment is the first frequency range 1 (frequency range 1, FR1)
  • the network equipment working in the first frequency range 1 its working frequency is less than 3GhHz.
  • the working frequency range of the network equipment is the second frequency range 1
  • both the reserved bits in the time information carried by the SSB and the spare bits of the MIB can be used, but the DMRS is unavailable.
  • the network device working in the second frequency range 1 has a working frequency greater than or equal to 3 GHz and less than or equal to 6 GHz.
  • the working frequency range of the network device is frequency range 2 (frequency range 2, FR2), only the spare bit of the MIB can be used, and the reserved bit in the time information carried by the DMRS and SSB can not be used. use.
  • the operating frequency of the network equipment in the operating frequency range 2 is greater than 6 GHz.
  • the access indication information indicates whether the terminal device can access the network device, which can avoid invalid search operations that cannot be accessed by the network device, and can save the power consumption of the terminal device.
  • the network device can not only indicate the SIB, the first system information block set, or any of the first system information block set through different states of a certain indicator included in the indication information.
  • the specific value of the above indication information can also be used to indicate at least one of the three types of information: SIB, the first system information block set, or any first system information block in the first system information block set. Whether the two are updated.
  • SIB the first system information block set
  • any first system information block in the first system information block set Whether the two are updated.
  • Table 1-2 The following takes the network device to indicate whether the SIB1 and the first system information block set are updated through the value of the indication information as an example, and the process of indicating the network device through the value of the indication information is simply performed. description.
  • Table 1-2 is a joint instruction table provided in the embodiment of this application. As shown in Table 1-2, when the network device determines that SIB1 has been updated and the first system information block set has not been updated, the above indication information can be set to 0. When the network device determines that SIB1 has been updated and the first system information block set has been updated, the above indication information can be set to 1. When the network device determines that SIB1 has not been updated and the first system information block set has been updated, the above indication information may be set to a value of 2. When the network device determines that SIB1 has not been updated and the first system information block set has not been updated, the above indication information may be set to 3.
  • the value of the above-mentioned indication information can be determined by the value of one or more bits included in the above-mentioned indication information, or it can also be determined by other data included in the indication information, which is not specifically limited in this application. .
  • the network device when indicating whether the SIB1 included in the first system information is updated by indicating whether the status of the flag is modified, if the SIB1 included in the first system information is updated, , The network device can modify the indicator used to indicate whether the SIB1 is updated (for example, the first indicator in the preceding paragraph) from the original first state to the second state, or from the original second state to the first state, This depends on the status of the indicator corresponding to whether the SIB1 is updated or not when the SIB1 is not updated. The same is true for the first system information block set or the first system information block included in the first system information block set, which will not be repeated here.
  • the first state or the second state of the indicator is only used to indicate the system information before and after the update (in the embodiment of the present application, the system information after the update is the same as the system information before the update). Information is treated as different system information).
  • the value corresponding to the first state of the indicator may be different or the same.
  • the indicator can use different values to characterize the first state. It is possible that the indicator in the first state at T1 takes the value 1, and at T2, the indicator in the first state The value of the indicator is 3. The same is true for the second state, so I won't repeat it here.
  • the 2 bits can represent 4 states, which are represented by state 0, state 1, state 2, and state 3, respectively.
  • the system information corresponding to a certain indicator is updated, and the state corresponding to the indicator before time T1 is state 0 (at this time, state 0 can be regarded as the first state), then after time T1, The state corresponding to the indicator may be state 1 (at this time, state 1 can be regarded as the second state).
  • the system information corresponding to the indicator is updated again, then after time T2, the state corresponding to the indicator can be state 3 (here, state 3 can also be regarded as the second state ), at this time, state 1 corresponding to the indicator before time T2 can be regarded as the first state.
  • the indicator of SIB1 or at least one other first system information block corresponds to 1 bit of information, and this 1 bit can represent two states, which are represented by state 0 and state 1, respectively.
  • the state corresponding to the indicator is state 0 (at this time, state 0 is regarded as the first state), then after time T1, the indicator The state corresponding to the identifier may be state 1 (at this time, state 1 can be regarded as the second state).
  • the system information corresponding to the indicator is updated again, then after time T2, the state corresponding to the indicator can be state 0 (at this time, state 0 can be regarded as the second State), in this way, the state corresponding to the indicator before time T2 (ie state 1) can be regarded as the first state.
  • S20 The network device sends the above-mentioned indication information through the PDCCH.
  • the network device may use the PDCCH as a bearer to send the foregoing indication information.
  • the network device can determine one or more reserved bits from the downlink control information DCI carried by the PDCCH, and then carry the above indication information on the one or more reserved bits , That is, one or more reserved bits in the DCI of the aforementioned scheduling SIB1 are used to carry indication information.
  • the above-mentioned DCI is used to schedule SIB1.
  • the network device may also determine one or more reserved bits from the DCI used for scheduling paging information.
  • the DCI of the above scheduling paging information is carried by the PDCCH, and then the above indication information It is carried in the one or more reserved bits, that is, one or more reserved bits in the DCI of the scheduling paging information are used to carry indication information.
  • the indication identifier contained in the above indication information may be a reserved bit in the DCI for scheduling SIB1 or a reserved bit in the DCI for scheduling paging information. It can be understood that, in actual applications, the network device may also send the foregoing indication information through other bearers, which is not specifically limited in the embodiment of the present application.
  • the network device may also send the updated first system information.
  • the terminal device detects the PDCCH, and obtains the above-mentioned indication information.
  • the terminal device can detect the PDCCH in real time or periodically, and determine the above-mentioned indication information from it, and the terminal device can also determine the time to detect the PDCCH according to the instructions of the network device, and detect the PDCCH.
  • the terminal device can obtain the DCI by receiving the SIB1PDCCH, and then determine the above-mentioned indication information from one or more reserved bits of the DCI.
  • the terminal device may also read the PDCCH to obtain one or more reserved bits in the DCI used for scheduling paging information, and determine the above-mentioned indication information based on the one or more reserved bits.
  • the terminal device may determine whether the above-mentioned first system information is updated according to the above-mentioned instruction information, and receive the updated first system information when it is determined that the first system information is updated.
  • One system information One system information.
  • the process of determining the first system information by the terminal device according to the indication information is also different.
  • a specific description will be given to the following types of processes for terminal devices to determine whether the first system information is updated according to the indication information.
  • step S10 in the case where the indication information includes the first indication identifier, if the terminal device determines that the first indication identifier is in the first state, it may determine that the SIB1 and/or at least one first system information block is in the first state. Any one of the first system information blocks has been updated. Alternatively, if the terminal device determines that the first indication identifier is changed from the first state to the second state, it may determine that any one of the SIB1 and/or at least one first system information block has been updated.
  • the determination of whether the first system information has been updated according to the first indication identifier can avoid the occurrence of repeated acquisition of the first system information when the first system information has not been updated, and can reduce the power consumption of the terminal device. Determination process two:
  • step S10 under the premise that the indicator includes the first indicator and the second indicator, if the terminal device determines that the first indicator is the first state or is modified from the first state to the second state , It can be determined that SIB1 has been updated. If the terminal device determines that the first indicator is in the second state or the state of the first indicator is not modified, it can determine that the SIB1 is not updated. If the network device determines that the second indication identifier is in the first state or is modified from the first state to the second state, it can be determined that the first system information block set has been updated.
  • the first indicator and the second indicator it is determined whether SIB1 and the first system information block set are updated, which can avoid repeated acquisition of SIB1 or the first system information block when the SIB1 or the first system information block set is not updated.
  • the occurrence of aggregation can reduce the power consumption of terminal equipment.
  • the terminal device can not only determine whether the SIB1 is updated according to the above-mentioned indication information. It is also possible to specifically determine which one or several of the first system information blocks in the first system information block set has been updated according to the above-mentioned indication information.
  • the above-mentioned indication information includes a first indication identifier and a second indication identifier.
  • the above-mentioned first indication identifier may be used to indicate whether the SIB1 is updated
  • the above-mentioned second indication identifier may be used to indicate whether any one or more of the three first system information blocks of SIB2, SIB3, and SIB4 have been updated. If the terminal device determines that the first indicator and the second indicator are both in the first state, or the terminal device determines that both the first indicator and the second indicator are changed from the first state to the second state, the terminal device may It is determined that SIB1 has been updated, and it can also be determined that any one or more of SIB2, SIB3, or SIB4 has been updated.
  • the terminal device determines that the first indicator and the second indicator are both in the second state, or the terminal device determines that the states of the first indicator and the second indicator have not changed, the terminal device can determine SIB1, SIB2, and Both SIB3 or SIB4 are updated.
  • the above indication information includes a first indication identifier, a second indication identifier, a third indication identifier, and a fourth indication identifier.
  • the above-mentioned first indicator can be used to indicate whether the SIB1 is updated, and the above-mentioned second indicator, the third indicator and the fourth indicator are respectively used to indicate whether the SIB2, SIB3, and SIB4 have been updated.
  • the terminal device can determine whether SIB1, SIB2, SIB3, or SIB4 respectively according to the current status or status of the above-mentioned first indicator, second indicator, third indicator, and fourth indicator. An update occurs.
  • the terminal device determines whether one or more first system information blocks in the first system information SIB1 or the first system information block collection terminal has been updated according to the instruction information, and can also be based on
  • the fifth indication identifies the current state or whether the state has changed to determine whether the scheduling information of the first system information block set is updated.
  • the scheduling information corresponding to the foregoing first system information set (for example, the time window information corresponding to the first system information block in the first system information set transmitted by the network device) is included in the SIB1 PDSCH. Therefore, when the above indication information indicates that SIB1 is updated, two situations may be included. The first situation is that the scheduling information of the first system information block set contained in SIB1 is updated.
  • the network device may include a fifth indicator in the above-mentioned indicator information. To indicate whether the above scheduling information has been updated.
  • the terminal device does not need to obtain the information carried in the SIB1 PDSCH when it determines that the scheduling information is updated but the first system information block and SIB1 are not updated, but according to the first system information block set that has been obtained before.
  • the information is retrieved to determine the updated first system information block, which can not only ensure the flexibility of the network device to transmit the first system information block, but also reduce the power consumption of the terminal device to detect the system information.
  • determining whether the scheduling information of the first system information block set is updated while determining whether the first system information is updated can prevent the terminal device from repeatedly acquiring SIB1 or the first system information block set while avoiding the terminal device from repeatedly obtaining SIB1 from SIB1. Extracting the aforementioned scheduling information can further reduce the power consumption of the terminal device and improve the efficiency of the terminal device in obtaining the first system information.
  • the above-mentioned indication information indicates different update conditions of the first system information block for different types of terminal devices. Therefore, the terminal device needs to determine its corresponding instruction rule before determining whether the first system information is updated according to the instruction information.
  • the above-mentioned indication rules may be predefined, such as standard protocol specifications, or may be obtained by the terminal device from the network device through carriers such as RRC information, MAC information, and physical layer information, which is not specifically limited in this application. It should be noted here that for different types of terminal devices, they can interpret the above-mentioned indication information according to different indication rules. In other words, the indication rule is used to characterize the correspondence between the type of the system information block and the indication information.
  • the indication information includes a second indication identifier and a third indication identifier.
  • the indication rule corresponding to the terminal device is the first indication rule, or it is determined that the corresponding indication rule is the first indication rule according to the configuration information sent by the network device, and the first indication rule may be The second indicator and the third indicator are defined to indicate whether SIB2 and SIB3 are updated.
  • the indication rule corresponding to the terminal device is the second indication rule, or the corresponding indication rule is determined to be the second indication rule according to the configuration information sent by the network device, and the second indication rule may be The second indicator and the third indicator are defined to indicate whether SIB4 and SIB5 are updated.
  • the indication rules may be different, but are not limited to the above examples.
  • the terminal device After the terminal device determines its corresponding instruction rule according to its corresponding terminal type, or determines its corresponding instruction rule according to the configuration information sent by the network device, it can determine one of the instructions corresponding to the above-mentioned instruction information according to the instruction rule. Or multiple first system information blocks. Then, the terminal device can determine whether the SIB1 and the one or more first system information blocks are updated according to the status of the indication identifier included in the indication information. For example, suppose that the above indication information may include a first indication identifier, a second indication identifier, and a third indication identifier.
  • the terminal device determines according to its corresponding indication rule that the above-mentioned second indication identifier and the third indication identifier are used to indicate whether the SIB2 and SIB3 are updated. After the terminal device obtains the first indicator, the second indicator, and the third indicator, if the terminal device determines that the first indicator, the second indicator, and the third indicator are all in the first state, or the terminal If the device determines that the first indicator, the second indicator, and the third indicator are all changed from the first state to the second state, the terminal device can determine that the SIB1, SB2, and SIB3 are all updated.
  • the terminal device determines that the first indicator, the second indicator, and the third indicator are all in the second state, or the terminal device determines that the first indicator, the second indicator, and the third indicator are unchanged, then The terminal device can determine that SIB1, SIB2, and SIB3 are all updated.
  • Interpreting the above instruction information according to different instruction rules can enable the terminal device to accurately determine whether its tendency or the system information block that it focuses on has been updated, so that the terminal device can more effectively avoid repeated reading of the system information block , Can further reduce the power consumption of terminal equipment.
  • the terminal device may receive the updated SIB1 at the first moment. If the terminal device determines that at least one first system information block in the first system information is updated, it may receive the updated at least one first system information block at the second moment.
  • the above-mentioned first moment and second moment may be the same moment or different moments, and this application does not make specific restrictions.
  • the above-mentioned first moment or second moment may be directly indicated by the network device, or may be pre-arranged by the network device and the terminal device, such as stipulated by a standard protocol, which is not specifically limited in the embodiment of this application.
  • the value of the indication information is used to indicate at the same time whether at least two of the SIB, the first system information block set, or any first system information block in the first system information block set occur.
  • the terminal device can also determine whether the SIB, the first system information block set, or any first system information block in the first system information block set has been updated according to the specific value of the indication information .
  • Table 1-3 is a kind of indication information value and terminal equipment provided by the embodiment of this application. Behavioral relationship mapping table.
  • Table 1-3 shows the result of whether the SIB1 and the first system information block set indicated by the different values of the indication information are updated, and the corresponding system information processing behavior of the terminal device. Specifically, when the terminal device determines that the value of the indication information is 0, it can be determined that SIB1 has been updated and the first system information block set has not been updated, it can reinterpret the SIB1 PDSCH but not the first system information block set. When the terminal device determines that the value of the indication information is 1, it can be determined that the SIB1 has been updated and the first system information block set has also been updated, and the SIB1 PDSCH and the first system information block set can be reinterpreted.
  • the terminal device determines that the value of the indication information is 2, it can be determined that the SIB1 is not updated and the first system information block set has been updated, and the SIB1 may not be interpreted but the first system information block may be reinterpreted.
  • the terminal device determines that the value of the indication information is 3
  • it can be determined that the SIB1 has not been updated and the first system information block set has not been updated, and it may not interpret both the SIB1 and the first system information block.
  • the indication information is carried in the PDCCH.
  • SIB1 PDSCH represents the physical downlink shared channel PDSCH that carries SIB1.
  • Not reinterpreting SIB1 and the first system information block set can mean not re-receiving the channel associated with SIB1 and the content contained in the channel associated with the first system information block set.
  • the channel associated with SIB1 includes the bearer
  • the channels associated with the first set of system information blocks include the PDCCH that carries the scheduling information of the first set of system information blocks and the first indication contained in the first set of system information blocks.
  • the PDSCH of one information block is the bearer
  • the channels associated with the first set of system information blocks include the PDCCH that carries the scheduling information of the first set of system information blocks and the first indication contained in the first set of system information blocks.
  • the terminal device can determine whether the system information is updated based on the instruction information issued by the network device, so as to only receive the updated system information. In this way, the repeated acquisition of the same system information can be avoided, the power consumption generated by the terminal device for acquiring the system information is reduced, and the efficiency of acquiring the system information of the terminal device and the user experience are improved.
  • FIG. 3 is a schematic structural diagram of a communication device according to an embodiment of the present application.
  • the communication device can be used to perform the functions of the terminal device in the first embodiment above.
  • the communication device may be the terminal device itself, or an internal component or module of the terminal device.
  • the communication device includes a processor, a memory, a radio frequency circuit, an antenna, and an input and output device.
  • the processor is mainly used to process the communication protocol and communication data, and to control the device, execute the software program, and process the data of the software program.
  • the memory is mainly used to store software programs and data.
  • the radio frequency circuit is mainly used for the conversion of baseband signal and radio frequency signal and the processing of radio frequency signal.
  • the antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves.
  • Input and output devices such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by a user who uses the device and output data to the user. It should be noted that in some scenarios, the communication device may not include an input and output device.
  • the processor When data needs to be sent, the processor performs baseband processing on the data to be sent, and then outputs the baseband signal to the radio frequency circuit.
  • the radio frequency circuit performs radio frequency processing on the baseband signal and sends the radio frequency signal to the outside in the form of electromagnetic waves through the antenna.
  • the radio frequency circuit receives the radio frequency signal through the antenna, converts the radio frequency signal into a baseband signal, and outputs the baseband signal to the processor, and the processor converts the baseband signal into data and processes the data.
  • FIG. 3 only one memory and processor are shown in FIG. 3. In an actual device product, there may be one or more processors and one or more memories.
  • the memory may also be referred to as a storage medium or storage device.
  • the memory may be set independently of the processor, or may be integrated with the processor, which is not limited in the embodiment of the present application.
  • the processor may include a baseband processor and/or a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data
  • the central processing unit is mainly used to control the entire device. Execute the software program and process the data of the software program.
  • the processor in FIG. 3 can integrate the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and are interconnected by technologies such as a bus.
  • the device may include multiple baseband processors to adapt to different network standards, the device may include multiple central processors to enhance its processing capabilities, and the various components of the device may be connected through various buses.
  • the aforementioned baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the above-mentioned central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and the communication data may be built in the processor, or stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • the antenna and radio frequency circuit with the transceiver function can be regarded as the transceiver unit of the device, and the processor with the processing function can be regarded as the processing unit of the device.
  • the communication device includes a transceiving unit 310 and a processing unit 320.
  • the device for implementing the receiving function in the transceiving unit 310 can be regarded as the receiving unit
  • the device for implementing the sending function in the transceiving unit 310 can be regarded as the sending unit, that is, the transceiving unit 310 includes a receiving unit and a sending unit.
  • the receiving unit may also be called a receiver, a receiver, or a receiving circuit.
  • the transmitting unit may sometimes be called a transmitter, a transmitter, or a transmitting circuit.
  • the transceiver unit 310 is configured to execute the process of detecting the PDCCH and obtaining the indication information described in step S30 in the first embodiment and the step of reading the updated first system information described in step S40.
  • the processing unit 320 is configured to perform the step of determining whether the first system information is updated according to the instruction information in step S40.
  • the first system information includes a system information block type SIB1 and a first system information block set other than the above SIB1, and the first system information block set includes at least one first system information block.
  • the indication identifier included in the indication information is a reserved bit in the downlink control information DCI for scheduling the SIB1 or a reserved bit in the DCI scheduling paging information, and the DCI is carried in the PDCCH.
  • the transceiver unit 310 receives the updated SIB1 at the first moment. And/or, if the processing unit 320 determines that the indication information indicates that the first system information block set is updated, the transceiver unit 310 receives the updated first system information block set at the second time.
  • the transceiver unit 310 receives the updated SIB1 at the first moment. And/or, if the processing unit 320 determines that the indication information indicates that at least one first system information block in the first system information block set is updated, the transceiver unit 310 receives the updated at least one first system information block at the second time.
  • the processing unit 320 determines the at least one first system information block indicated correspondingly to the indication information according to the obtained indication rule, and the indication rule corresponds to the terminal device.
  • the foregoing transceiver unit 310 is further configured to receive access indication information.
  • the foregoing processing unit 320 is further configured to determine whether the network device allows its access according to the foregoing instruction information.
  • the transceiver unit 310 may also obtain the above-mentioned access indication information through the reserved bits in the time information carried by the demodulation reference signal DMRS, the synchronization signal block SSB, or the reserved bits of the main system information block MIB.
  • the foregoing transceiver unit 310 may be used to detect the PDCCH and obtain the foregoing indication information process.
  • the processing unit 320 may be configured to trigger the transceiver unit 310 to read the updated first system information if it is determined that the indication information indicates that the first system information is updated.
  • the specific process can be described in the step S40 of the embodiment. If it is determined that the indication information indicates that the first system information is updated, then the process of reading the updated first system information is described, which will not be repeated here.
  • FIG. 4 is a schematic diagram of another structure of a communication device according to an embodiment of the present application.
  • the communication device can be applied to the communication system shown in FIG. 1 to perform the functions of the network device in the first embodiment.
  • the device can be the network device itself, or an internal component or module of the network device.
  • the device may include one or more transceiving units 410 and one or more processing units 420.
  • the foregoing transceiver unit 410 may be referred to as a transceiver, a transceiver circuit, or a transceiver, etc., which may include at least one antenna and a radio frequency unit.
  • the above-mentioned transceiver unit 410 is mainly used for receiving and sending of radio frequency signals and conversion of radio frequency signals and baseband signals, for example, for sending the instruction information in the above embodiments to the terminal device.
  • the above-mentioned processing unit 420 is mainly used to perform baseband processing, control the device, and so on.
  • the foregoing transceiver unit 410 and the processing unit 420 may be physically arranged together, or may be physically separated, that is, a distributed device.
  • the foregoing processing unit 420 may be used to control the device to execute the process of determining the indication information in the foregoing first embodiment.
  • the above-mentioned processing unit 420 may be composed of one or more single boards, and multiple single boards may jointly support a radio access network (such as an NR network) with a single access indication, or may respectively support different access standards. Wireless access network.
  • the above-mentioned processing unit 420 further includes a memory and a processor, and the above-mentioned memory is used to store necessary instructions and data.
  • the foregoing processor is used to control the device to perform necessary actions, for example, to control the device to execute the operation flow of the device in the foregoing method embodiment.
  • the aforementioned memory and processor may serve one or more single boards. In other words, the memory and the processor can be set separately on each board. It can also be that multiple boards share the same memory and processor. In addition, necessary circuits can be provided on each board.
  • the processor may include a baseband processor and/or a central processing unit.
  • the baseband processor is mainly used to process communication protocols and communication data
  • the central processing unit is mainly used to control the entire device. Execute the software program and process the data of the software program.
  • the processor in FIG. 4 can integrate the functions of the baseband processor and the central processing unit.
  • the baseband processor and the central processing unit can also be independent processors and are interconnected by technologies such as a bus.
  • the device may include multiple baseband processors to adapt to different network standards, the device may include multiple central processors to enhance its processing capabilities, and the various components of the device may be connected through various buses.
  • the aforementioned baseband processor may also be expressed as a baseband processing circuit or a baseband processing chip.
  • the above-mentioned central processing unit can also be expressed as a central processing circuit or a central processing chip.
  • the function of processing the communication protocol and the communication data may be built in the processor, or stored in the storage unit in the form of a software program, and the processor executes the software program to realize the baseband processing function.
  • the processing unit 420 is used to determine the indication information.
  • the transceiver unit 410 is used to send the instruction letter.
  • the above-mentioned processing unit 420 is configured to execute the process of determining the indication information in step S10 in the first embodiment.
  • the above-mentioned indication information includes N indication identifiers, and the states of the above-mentioned N indication identifiers are used to indicate whether a system event included in the first associated event group has occurred, and the above-mentioned first associated event group consists of N mutual events among the M system events.
  • Associated system event composition, M is greater than N.
  • the foregoing sending unit 410 is further configured to perform the sending of the updated first system information described in step S20 in the first embodiment.
  • the indication identifier included in the indication information is a reserved bit in the DCI for scheduling the SIB1 or a reserved bit in the DCI for scheduling paging information, and the DCI is carried in the PDCCH.
  • the transceiving unit 410 may be used to send an indication rule corresponding to the terminal device, and the indication rule is used to determine the at least one first system information block indicated by the indication information.
  • the processing unit 420 may be used to determine access indication information, and the above-mentioned access indication information is used to indicate whether it allows the terminal device to access.
  • the transceiver unit 410 may be used to send the aforementioned access indication information.
  • the transceiving unit 410 may send the above-mentioned access indication information through the DMRS, the reserved bits in the time information carried by the synchronization signal block SSB, or the reserved bits of the MIB.
  • the processing unit 420 may determine the indication information.
  • the processing unit 420 may determine the indication information.
  • the transceiver unit 410 may be used to send the above-mentioned instruction information.
  • FIG. 5 is a schematic diagram of another structure of a communication device according to an embodiment of the present application.
  • the communication device may be the terminal device in the first embodiment, and may be used to implement the system information transmission method implemented by the terminal device in the first embodiment.
  • the device includes a processor 51, a memory 52, a transceiver 53 and a bus system 54.
  • the memory 51 includes but is not limited to RAM, ROM, EPROM or CD-ROM, and the memory 51 is used to store related instructions and data.
  • the memory 51 stores the following elements, executable modules or data structures, or their subsets, or their extended sets:
  • Operating instructions including various operating instructions, used to implement various operations.
  • Operating system Including various system programs, used to implement various basic services and process hardware-based tasks.
  • FIG. 5 Only one memory is shown in FIG. 5. Of course, the memory can also be set to multiple as required.
  • the transceiver 53 may be a communication module or a transceiver circuit. Applied in the embodiment of the present application, the transceiver 53 is used to execute the instruction information receiving process involved in the first embodiment.
  • the processor 51 may be a controller, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of the embodiments of the present application. Such as the access restriction detection process involved in the first embodiment.
  • the processor 51 may also be a combination for realizing computing functions, for example, including a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • bus system 54 the various components of the device are coupled together through a bus system 54, where the bus system 54 may include a power bus, a control bus, a status signal bus, etc. in addition to a data bus.
  • bus system 54 may include a power bus, a control bus, a status signal bus, etc. in addition to a data bus.
  • various buses are marked as the bus system 54 in FIG. 5.
  • FIG. 5 is only schematically drawn.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • Programming logic devices discrete gates or transistor logic devices, discrete hardware components.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM
  • the embodiment of the present application also provides a computer-readable medium on which a computer program is stored, and when the computer program is executed by a computer, the method or step executed by the terminal device in the first embodiment is implemented.
  • the embodiment of the present application also provides a computer program product, which, when executed by a computer, implements the method or step executed by the terminal device in the first embodiment above.
  • the embodiment of the present application also provides a communication device, and the communication device may be the terminal device in the first embodiment.
  • the communication device includes at least one processor and an interface.
  • the processor is used to execute the method or step executed by the terminal device in the first embodiment above.
  • the foregoing terminal device may be a chip, and the foregoing processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like.
  • the processor When implemented by software, the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory, and the memory may be integrated in the processor, may be located outside the above-mentioned processor, and exist independently.
  • FIG. 6 is a schematic diagram of another structure of a communication device according to an embodiment of the present application.
  • the communication device may be the network device in the first embodiment, and can be used to implement the system information transmission method implemented by the network device in the first embodiment.
  • the device includes a processor 61, a memory 62, a transceiver 63 and a bus system 64.
  • the memory 61 includes but is not limited to RAM, ROM, EPROM or CD-ROM, and the memory 61 is used to store related instructions and data.
  • the memory 61 stores the following elements, executable modules or data structures, or their subsets, or their extended sets:
  • Operating instructions including various operating instructions, used to implement various operations.
  • Operating system Including various system programs, used to implement various basic services and process hardware-based tasks.
  • the transceiver 63 may be a communication module or a transceiver circuit. Applied in the embodiment of the present application, the transceiver 63 is used to execute the sending process of the indication information involved in the first embodiment.
  • the processor 61 may be a controller, a CPU, a general-purpose processor, a DSP, an ASIC, an FPGA or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. It can implement or execute various exemplary logical blocks, modules, and circuits described in conjunction with the disclosure of the embodiments of the present application.
  • the processor 61 may also be a combination that implements computing functions, for example, includes a combination of one or more microprocessors, a combination of a DSP and a microprocessor, and so on.
  • bus system 64 the various components of the device are coupled together through a bus system 64, where the bus system 64 may include a power bus, a control bus, and a status signal bus in addition to a data bus.
  • bus system 64 may include a power bus, a control bus, and a status signal bus in addition to a data bus.
  • various buses are marked as the bus system 64 in FIG. 6.
  • FIG. 6 is only schematically drawn.
  • the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability.
  • the steps of the foregoing method embodiments can be completed by hardware integrated logic circuits in the processor or instructions in the form of software.
  • the above-mentioned processor may be a general-purpose processor, a digital signal processor (digital signal processor, DSP), an application specific integrated circuit (ASIC), a ready-made programmable gate array (field programmable gate array, FPGA) or other Programming logic devices, discrete gates or transistor logic devices, discrete hardware components.
  • DSP digital signal processor
  • ASIC application specific integrated circuit
  • FPGA field programmable gate array
  • Programming logic devices discrete gates or transistor logic devices, discrete hardware components.
  • the memory in the embodiments of the present application may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memory.
  • the non-volatile memory can be read-only memory (ROM), programmable read-only memory (programmable ROM, PROM), erasable programmable read-only memory (erasable PROM, EPROM), and electrically available Erase programmable read-only memory (electrically EPROM, EEPROM) or flash memory.
  • the volatile memory may be random access memory (RAM), which is used as an external cache.
  • RAM random access memory
  • static random access memory static random access memory
  • dynamic RAM dynamic RAM
  • DRAM dynamic random access memory
  • synchronous dynamic random access memory synchronous DRAM, SDRAM
  • double data rate synchronous dynamic random access memory double data rate SDRAM, DDR SDRAM
  • enhanced synchronous dynamic random access memory enhanced SDRAM, ESDRAM
  • synchronous connection dynamic random access memory serial DRAM, SLDRAM
  • direct rambus RAM direct rambus RAM
  • the embodiment of the present application also provides a computer-readable medium on which a computer program is stored, and when the computer program is executed by a computer, the method or step executed by the network device in the first embodiment is implemented.
  • the embodiments of the present application also provide a computer program product, which, when executed by a computer, implements the method or step executed by the network device in the first embodiment above.
  • the embodiment of the present application also provides a device, which may be the network device in the first embodiment.
  • the device includes at least one processor and interface.
  • the processor is used to execute the method or step executed by the network device in the first embodiment above.
  • the foregoing network device may be a chip, and the foregoing processor may be implemented by hardware or software.
  • the processor When implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like.
  • the processor When implemented by software, the processor may be a general-purpose processor, which is implemented by reading software codes stored in the memory, and the memory may be integrated in the processor, may be located outside the above-mentioned processor, and exist independently.
  • the above method embodiments it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof.
  • software it can be implemented in the form of a computer program product in whole or in part.
  • the above-mentioned computer program product includes one or more computer instructions.
  • the foregoing computer instructions are loaded and executed on a computer, the foregoing processes or functions according to the embodiments of the present application are generated in whole or in part.
  • the above-mentioned computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices.
  • the above-mentioned computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium.
  • the above-mentioned computer instructions can be transmitted from a website, computer, server, or data center through a cable.
  • a cable can be any usable medium that can be accessed by a computer or a data storage device such as a server or data center integrated with one or more usable media.
  • the above usable media can be magnetic media (for example, floppy disks, hard disks, tapes), optical media (For example, a high-density digital video disc (DVD), or a semiconductor medium (for example, a solid state disk (SSD), etc.).
  • magnetic media for example, floppy disks, hard disks, tapes
  • optical media for example, a high-density digital video disc (DVD), or a semiconductor medium (for example, a solid state disk (SSD), etc.
  • DVD high-density digital video disc
  • SSD solid state disk
  • system and “network” in the embodiments of the present application can often be used interchangeably.
  • the term “and/or” in this embodiment is only an association relationship that describes associated objects, indicating that there can be three types of relationships, for example, A and/or B, which can mean: A alone exists, and A and B exist at the same time. There are three cases of B alone.
  • the character "/" in this text generally indicates that the associated objects before and after are in an "or” relationship.
  • the disclosed system, device, and method may be implemented in other ways.
  • the device described above is only illustrative, for example, the division of units is only a logical function division, and there may be other divisions in actual implementation, for example, multiple units or components can be combined or integrated into another. A system or some features can be ignored or not implemented.
  • the displayed or discussed mutual coupling or direct coupling or communication connection may be indirect coupling or communication connection through some interfaces, devices or units, and may also be electrical, mechanical or other forms of connection.
  • the functional units in the embodiments of the present application may be integrated into one processing unit, or each unit may exist alone physically, or two or more units may be integrated into one unit.
  • the above-mentioned integrated unit can be implemented in the form of hardware or software functional unit.

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Abstract

Selon certains modes de réalisation, la présente demande concerne un procédé de transmission d'informations de système. Un dispositif terminal détecte un canal de commande de liaison descendante physique (PDCCH). Ici, le PDCCH transporte des informations d'indication utilisées pour indiquer si des premières informations de système d'un dispositif de réseau sont mises à jour. Si le dispositif terminal détermine que les informations d'indication indiquent que les premières informations de système sont mises à jour, les premières informations de système mises à jour sont reçues. Selon le procédé, la consommation d'énergie générée lorsque le dispositif terminal obtient des informations système peut être réduite, et l'efficacité d'obtention d'informations système du dispositif terminal et de l'expérience utilisateur peuvent être améliorées.
PCT/CN2019/109727 2019-09-30 2019-09-30 Procédé de transmission d'informations de système et appareil de communication WO2021062802A1 (fr)

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