WO2021062802A1

WO2021062802A1 - System information transmission method and communication apparatus

Info

Publication number: WO2021062802A1
Application number: PCT/CN2019/109727
Authority: WO
Inventors: 郑娟; 李超君
Original assignee: 华为技术有限公司
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2021-04-08
Also published as: CN114365547A; CN114365547B

Abstract

Embodiments of the present application provide a system information transmission method. A terminal device detects a physical downlink control channel (PDCCH). Here, the PDCCH carries indication information used for indicating whether first system information of a network device is updated. If the terminal device determines that the indication information indicates that the first system information is updated, the updated first system information is received. According to the method, power consumption generated when the terminal device obtains system information can be reduced, and the obtaining efficiency of system information of the terminal device and user experience can be improved.

Description

System information transmission method and communication device

Technical field

This application relates to the field of wireless communication, and in particular to a method and communication device for transmitting system information.

Background technique

With the continuous development of mobile communication technology, the Fifth-Generation (5G) mobile communication technology (also known as New Radio (NR)) has been proposed. In practical applications, 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. Among them, large-scale machine communication technology is especially suitable for video surveillance, supply chain tracking, electronic payment and other fields, and has high practical value. For large-scale machine communication technology, due to the particularity of its application fields and scenarios, 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.

In the prior art, on the one hand, network devices periodically send (mainly broadcast) system information. In addition, in order to better match the current operating status of the network system, the network equipment will also periodically update the system information it sends. On the other hand, for 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. However, when 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.

Summary of the invention

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.

In the first aspect, an embodiment of the present application provides a method for transmitting system information. The terminal equipment detects the physical downlink control channel PDCCH. Here, 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.

In the embodiment of the present application, 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.

With reference to the first aspect, in a feasible implementation manner, 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.

With reference to the first aspect, in a feasible implementation manner, 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.

With reference to the first aspect, in a feasible implementation manner, if the above-mentioned 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.

With reference to the first aspect, in a feasible implementation manner, if the above-mentioned 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.

With reference to the first aspect, in a feasible implementation manner, 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.

With reference to the first aspect, in a feasible implementation manner, 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.

With reference to the first aspect, in a feasible implementation manner, 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.

In the second aspect, the embodiments of the present application provide a method for transmitting system information. The network device determines the instructions. Here, 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.

In the embodiment of the present application, 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.

With reference to the second aspect, in a feasible implementation manner, the network device may also send updated first system information.

With reference to the second aspect, in a feasible implementation manner, 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.

With reference to the second aspect, in a feasible implementation manner, 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.

With reference to the second aspect, in a feasible implementation manner, 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.

With reference to the second aspect, in a feasible implementation manner, 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.

With reference to the second aspect, in a feasible implementation manner, 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.

In the third aspect, 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).

In a fourth aspect, 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).

In a fifth 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 memory and a processor. Wherein, 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.

In a sixth 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. Wherein, 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.

In a seventh 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).

In an eighth 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 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).

In a ninth aspect, 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.

In a tenth 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.

In an eleventh aspect, an embodiment of the present application provides a computer program product containing instructions. When 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.

In the twelfth aspect, the embodiments of the present application provide a computer program product containing instructions. 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.

In a thirteenth 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.

Description of the drawings

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.

Detailed ways

The technical solution in this application will be described below in conjunction with the accompanying drawings.

The technical solutions of the embodiments of this application can be applied to various communication systems, for example: MTC system, code division multiple access (CDMA) system, wideband code division multiple access (WCDMA) system , General Packet Radio Service (GPRS), Long Term Evolution (LTE) System, LTE Frequency Division Duplex (FDD) System, LTE Time Division Duplex (TDD) , Universal mobile telecommunication system (UMTS), worldwide interoperability for microwave access (WiMAX) communication system, fifth generation (5G) system or new radio (NR) Wait.

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.

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) 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, eNB or eNodeB), it can also be a wireless controller in the cloud radio access network (CRAN) scenario, or 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.

Please refer to FIG. 1, which is a schematic structural diagram of a communication system provided by an embodiment of the present application. It can be seen from Figure 1 that 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. Of course, it can be understood that 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). In the communication system shown in Figure 1, network devices periodically broadcast system information to various terminal devices. In the embodiments of the present application, the system information broadcast by the network device can be understood as the high-level information sent by the network device through broadcast. For example, the foregoing system information may include the following information: master information block (MIB) and system information block (SIB). Further, according to the specific information contained, 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. In order to better match the operating status of the current network system, 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. However, 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.

Therefore, 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.

Example one

Please refer to FIG. 2, which 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:

S10. The network device determines the indication information.

In some feasible implementation manners, 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. Here, 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. For example, the foregoing first system information block set may include multiple first system information blocks such as SIB2 and SIB3. What needs to be explained here is that 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. Especially for machine terminal equipment, based on cost considerations, 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. Based on this, 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.

In this application, SIB1 can be understood as necessary system information required for data transmission between a terminal device and a network device. For example, 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. In different systems, the name of SIB1 may be different. In the embodiment of this application, after the terminal device detects the physical broadcast channel (PBCH) sent by the network device, in order to continue data transmission with the network device, the first system information sent by the network device that needs to be detected is all Called SIB1. System information blocks other than SIB1 can be understood as other system information broadcasted by network equipment.

It should also be noted that, in the embodiments of the present application, 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). Signaling etc. 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. Among them, 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.

In specific implementation, according to the different objects indicated by the above-mentioned indication information, 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.

Realization method one:

In this implementation manner, 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. Here, the above-mentioned indication information includes the first indication identifier.

In an optional implementation, 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. Here, it can be understood that the first state of the first indicator is used to indicate that the first system information block has been updated, and 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. For example, suppose that 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.

In another optional implementation, 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. Here, it can be understood that 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. In short, 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. If the network device determines that SIB1 or any one of the at least one first system information block has been updated, the value of the indicator bit can be modified from 0 to 1. When SIB1 or any one of the at least one first system information block is updated again, 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 .

Implementation method two:

In this implementation manner, 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. Here, 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. For example, 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; or, the first indicator is used to indicate whether the first system information block set is updated, and the second indicator is used to indicate whether SIB1 An update occurs. In the following, a scenario in which 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.

In an optional implementation, 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. For example, suppose that the first indicator is the indicator bit A, and the first indicator is the indicator bit B. If the network device determines that the SIB1 has been updated and none of the first system information blocks has been updated, the first indicator bit A can be set to 1, and the second indicator bit B can be set to 0.

In another optional implementation, 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. Here, it can be understood that in this implementation, 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. In short, it is to indicate whether 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. In the case that the terminal device repeatedly obtains the SIB1 or the first system information block set, the power consumption of the terminal device can be reduced.

Implementation mode three:

In this implementation manner, 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. In other words, 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.

In the following, it is assumed that 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.

In an optional implementation manner, the first indicator can be used to indicate whether SIB1 is updated, and 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. In specific implementation, 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.

In another optional implementation manner, it is assumed that 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. In specific implementation, if the network device determines that the above-mentioned SIB1 is updated according to its system configuration information or system log information, etc., the first indication flag may be set to the first 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 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.

In yet another implementation manner, 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. Combining the content of the first two implementations in this implementation, if the instruction information includes the first indicator and the second indicator, if 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. If the network device determines that any one or more of the SIB2, SIB3, or SIB4 is updated, 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. In the case where the indication information includes the first indication identifier, the second indication identifier, the third indication identifier, and the fourth indication identifier, if 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.

It should be noted that, in the embodiment of the present application, 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. In addition, in the embodiment of the present application, 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.

Realization way four:

In an optional implementation manner, since SIB1 contains the scheduling information corresponding to the first system information block set, here, 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 first system information block. 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. Wherein, 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. Therefore, 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). Combining the process of determining the indication information by the network device described in the first, second, and third implementation modes, it can be seen that 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.

For example, 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. In this case, 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. In this case, 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). Or, the network device updates the scheduling information based on the system configuration and other reasons. For example, 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.

On the basis of indicating whether SIB1 and the first system information block set are updated, 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.

Implementation mode five:

In practical applications, 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. It should be noted here that, in the embodiment of the present application, 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. Or, according to the bandwidth capability of the terminal device. Of course, it can be understood that there are other ways to classify the types of terminal devices, which are not specifically limited in this application. For example, in the case of classification according to the types of services supported by terminal devices, 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. For another example, in the case of dividing according to the bandwidth capability of the terminal device, different types of terminal devices can be distinguished according to the maximum channel bandwidth supported by the terminal device. Here, 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. Here, the maximum frequency resource that can be used by the terminal device is continuous in the frequency domain. Or, 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 . Here, the transmission bandwidth corresponding to this 5MHz frequency band needs to remove the guard bandwidth. Specifically, in the case of dividing different types of terminal devices according to their bandwidth capabilities, 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. For a type of terminal device, the specific threshold here can be pre-defined or pre-configured.

In order to save resources occupied by the indication information, in some cases, the network device may use the same indication identifier to indicate whether different first system information blocks are updated according to different indication rules. Here, 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. For the terminal device, according to 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. Here, 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.

For example, suppose that the above indication information includes a first indication identifier and a second indication identifier, where the first indication identifier is used to indicate whether SIB1 is updated, and the second indication identifier may be used to indicate SIB2 and SIB2 for the first type of terminal device. / Or whether 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.

For another example, suppose that the above-mentioned indication information includes a first indication identifier, a second indication identifier, and a third indication identifier. According to its system configuration information or system log information, 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. In this way, it is possible to indicate whether the five system information blocks, SIB1, SIB2, SIB3, SIB4, and SIB5, are updated through the above-mentioned first indicator, second indicator, and third indicator. It should be noted that when determining the status corresponding to the first indicator, the second indicator, and the third indicator, 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. For 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. Here, the network device uses the same indicator to indicate whether different first system information blocks are updated, which can save communication resources.

It should be noted that, in the embodiment of the present application, different 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.

Optionally, in a scenario where the same indicator is used to indicate whether different first system information blocks are updated, 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. For example, assuming that the above-mentioned indication information includes a first indication identifier and a second indication identifier, 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. At time T2, 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. Correspondingly, different types of terminal devices can determine the time to receive the indication information according to predefined criteria or pre-configured information. In the same way, 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.

In some feasible implementation manners, 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. Here, the above-mentioned access indication information may include a sixth indication identifier. In a specific implementation, 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.

In a specific implementation, after the network device determines the foregoing access instruction information, the network device may send the foregoing access instruction information. In specific implementation, 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. Further optionally, 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. Among them, the channel characteristic on a certain antenna port symbol can be derived from another antenna port, and it is considered that these two ports satisfy the QCL. In other words, the channel estimation result obtained from one port can be used for another port. Here, the difference in the access indication information refers to the difference in the identification status of the included sixth indication identifier. Alternatively, 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). Here, 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. The time information generally occupies 8 bits, of which the lower two bits are reserved bits. Alternatively, the network device may also send the aforementioned access indication information through a spare bit of the MIB of the main system information block. In the embodiment of the present application, 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.

Further, optionally, the network device may determine the way of bearing the access indication information according to its working frequency range. As shown in Table 1-1, 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. As shown in Table 1-1, if the working frequency range of the network equipment is the first frequency range 1 (frequency range 1, FR1), there are three types: the reserved bits in the time information carried by the DMRS and the SSB, and the spare bits of the MIB. All bearing methods can be used. Here, the network equipment working in the first frequency range 1, its working frequency is less than 3GhHz. If 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. Here, 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. If 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. Here, the operating frequency of the network equipment in the operating frequency range 2 is greater than 6 GHz.

Table 1-1

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.

Here, it needs to be added that, in actual applications, 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. Whether the first system information block is updated, 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. For example, refer to 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. Here, it needs to be understood that 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. .

Table 1-2

In addition, it should be noted that, in the embodiment of the present application, 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. In addition, it should be understood that 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). In practical applications, at different moments, the value corresponding to the first state of the indicator may be different or the same. In layman's terms, at different times, 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. For example, assuming that the indication identifier corresponding to SIB1 or at least one other first system information block is 2 bits, the 2 bits can represent 4 states, which are represented by state 0, state 1, state 2, and state 3, respectively. Assuming that at time T1, 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). At time T2 (time T2 is after time T1), 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. For another example, suppose that 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. Assuming that at time T1, the system information corresponding to the indicator is updated and before time T1, 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). At time T2 (time T2 is after time T1), 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.

In some feasible implementation manners, after determining the foregoing indication information, the network device may use the PDCCH as a bearer to send the foregoing indication information. In specific implementation, after determining the above 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. Here, the above-mentioned DCI is used to schedule SIB1. Alternatively, after determining the above indication information, 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. In other words, 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.

In some feasible implementation manners, after determining that the above-mentioned first system information is updated, the network device may also send the updated first system information.

S30: The terminal device detects the PDCCH, and obtains the above-mentioned indication information.

In some feasible implementation manners, 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. In a specific implementation, 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. Alternatively, 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.

S40: If the above indication information indicates that the first system information is updated, the terminal device receives the updated first system information.

In some feasible implementation manners, after receiving the above-mentioned instruction information, 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.

In a specific implementation, according to different objects indicated by the foregoing indication information, the process of determining the first system information by the terminal device according to the indication information is also different. In the following, in combination with the various processes for determining indication information described in step S10, 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.

Determination process one:

For the first implementation in 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:

For the second implementation in 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.

According to 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.

Determination process three:

For the third implementation in step S10, 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.

In an implementation, it is assumed that 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, and 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. If 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.

In another implementation, it is assumed that 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. In the specific implementation, in the same way, 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.

Determine whether SIB1 and each first system information block included in the first system information block has changed in more detail according to the multiple indication identifiers contained in the instruction information, so that the terminal device can more accurately determine the updated system information Block, so that the terminal device can more effectively avoid repeated reading of the system information block, which can further reduce the power consumption of the terminal device.

Confirmation method four:

For the fourth implementation in step S10, 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. It should be noted that, generally speaking, 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 second situation is that other information in the SIB except the above scheduling information has been updated, but the above scheduling information has not been updated. Therefore, in order to ensure the flexibility of the network device to transmit the first system information block included in the first system information block set while reducing the power consumption of the terminal device to detect the system information, the network device may include a fifth indicator in the above-mentioned indicator information. To indicate whether the above scheduling information has been updated. In this way, 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.

Here, 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.

Confirmation method five:

Regarding the content involved in the fifth implementation manner in step S10, 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. In specific implementation, 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.

For example, suppose that the above indication information includes a second indication identifier and a third indication identifier. If the terminal device is a terminal device of the first type, 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. If the terminal device is a second type of terminal device, 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 above is only an exemplary description. For different types of terminal devices, the indication rules may be different, but are not limited to the above examples.

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. If 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.

In some feasible implementation manners, if the terminal device determines that the SIB1 in the first system information is updated, it 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. Here, 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.

In addition, for the network equipment described above, 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. In the case of update, after obtaining the above indication information, 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 . For example, in combination with the above-mentioned content of simultaneous indication based on the value of the indication information and the content of Table 1-2, please refer to Table 1-3. Table 1-3 is a kind of indication information value and terminal equipment provided by the embodiment of this application. Behavioral relationship mapping table. For example, 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. When 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. When 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. Here, 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. Here, the channel associated with SIB1 includes the bearer The PDCCH of the scheduling information of SIB1 and the PDSCH carrying SIB1, 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.

Table 1-3

Please refer to FIG. 3, which 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. For ease of description, only the main components of the communication device are shown in FIG. 3. It can be seen from FIG. 3 that 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.

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. When data is sent to the device, 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. For ease of description, 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.

As an optional implementation, 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, and 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. Those skilled in the art can understand that the baseband processor and the central processing unit can also be independent processors and are interconnected by technologies such as a bus. Those skilled in the art can understand that 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.

In the embodiments of the present application, 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. As shown in FIG. 3, the communication device includes a transceiving unit 310 and a processing unit 320. Optionally, the device for implementing the receiving function in the transceiving unit 310 can be regarded as the receiving unit, and 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. Here, 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.

It should be understood that 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.

In an implementation manner, 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.

In an implementation manner, 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.

In an implementation manner, if the processing unit 320 determines that the indication information indicates that the SIB1 is updated, 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.

In an implementation manner, if the processing unit 320 determines that the indication information indicates that the SIB1 is updated, 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.

In an implementation manner, 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.

In an implementation manner, 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.

In an implementation manner, 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.

In a specific implementation, the foregoing transceiver unit 310 may be used to detect the PDCCH and obtain the foregoing indication information process. For the specific process, please refer to the process of receiving indication information described in step S30 in the embodiment, which will not be repeated here. 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.

Please refer to FIG. 4, which is a schematic diagram of another structure of a communication device according to an embodiment of the present application. As shown in FIG. 4, 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. For example, 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. In a specific implementation, 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.

As an optional implementation, 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, and 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. Those skilled in the art can understand that the baseband processor and the central processing unit can also be independent processors and are interconnected by technologies such as a bus. Those skilled in the art can understand that 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.

In an implementation manner, the processing unit 420 is used to determine the indication information. The transceiver unit 410 is used to send the instruction letter.

In an implementation manner, the above-mentioned processing unit 420 is configured to execute the process of determining the indication information in step S10 in the first embodiment. Wherein, 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.

In an implementation manner, 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.

In an implementation manner, 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.

In an implementation manner, 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.

In an implementation manner, 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.

In an implementation, 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.

In specific implementation, the processing unit 420 may determine the indication information. For the specific process, refer to the determination process of the indication information described in step S10 in the first embodiment, which will not be repeated here. The transceiver unit 410 may be used to send the above-mentioned instruction information. For the specific process, please refer to the process of sending instruction information described in step S20 in the first embodiment, which will not be repeated here.

Please refer to FIG. 5, which 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.

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.

In a specific application, 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. However, for the sake of clear description, various buses are marked as the bus system 54 in FIG. 5. For ease of presentation, FIG. 5 is only schematically drawn.

It should be noted that in practical applications, the processor in the embodiment of the present application may be an integrated circuit chip with signal processing capability. In the implementation process, 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. The methods, steps, and logical block diagrams disclosed in the embodiments of the present application can be implemented or executed.

It can be understood that 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. Among them, 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. By way of exemplary but not restrictive description, many forms of RAM are available, such as static random access memory (static RAM, SRAM), dynamic random access memory (dynamic RAM, DRAM), and 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 (synchlink DRAM, SLDRAM) ) And direct memory bus random access memory (direct rambus RAM, DR RAM). It should be noted that the memories described in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

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. It should be understood that the foregoing terminal device may be a chip, and the foregoing processor may be implemented by hardware or software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like. 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.

Please refer to FIG. 6, which 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:

Only one memory is shown in FIG. 6, of course, the memory can also be set to multiple as required.

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.

In a specific application, 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. However, for the sake of clear description, various buses are marked as the bus system 64 in FIG. 6. For ease of presentation, FIG. 6 is only schematically drawn.

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. It should be understood that the foregoing network device may be a chip, and the foregoing processor may be implemented by hardware or software. When implemented by hardware, the processor may be a logic circuit, an integrated circuit, or the like. 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.

In the above method embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented by 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. When 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. For example, the above-mentioned computer instructions can be transmitted from a website, computer, server, or data center through a cable. (Such as coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL) or wireless (such as infrared, wireless, microwave, etc.) transmission to another website site, computer, server or data center. The above-mentioned computer-readable storage The medium 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.).

It should be understood that the terms "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. In addition, the character "/" in this text generally indicates that the associated objects before and after are in an "or" relationship.

A person of ordinary skill in the art may be aware that the units and algorithm steps of the examples described in the embodiments disclosed herein can be implemented by electronic hardware, computer software, or a combination of both, in order to clearly illustrate the hardware and software Interchangeability, in the above description, the composition and steps of each example have been generally described in accordance with the function. Whether these functions are performed by hardware or software depends on the specific application and design constraint conditions of the technical solution. Professionals and technicians can use different methods for each specific application to implement the described functions, but such implementation should not be considered beyond the scope of this application.

In the embodiments provided in this application, it should be understood that the disclosed system, device, and method may be implemented in other ways. For example, 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. In addition, 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.

In addition, 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.

In short, the above are only preferred embodiments of the technical solutions of the present application, and are not used to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of this application shall be included in the protection scope of this application.

Claims

A method for transmitting system information, characterized in that the method includes:

Detecting a physical downlink control channel PDCCH, where 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 indication information indicates that the first system information is updated, receiving the updated first system information.
The method according to claim 1, wherein the first system information includes a system information block type SIB1 and a first system information block set other than the SIB1, and the first system information block set includes at least one first system information block set. A system information block.
The method according to claim 2, wherein the indication identifier contained 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 Carried in the PDCCH.
The method according to claim 2 or 3, wherein if the indication information indicates that the first system information is updated, receiving the updated first system information comprises:

If the indication information indicates that the SIB1 is updated, receive the updated SIB1 at the first moment; and/or,

If the indication information indicates that the first system information block set is updated, the updated first system information block set is received at the second moment.
The method according to claim 2 or 3, wherein if the indication information indicates that the first system information is updated, receiving the updated first system information comprises:

If the indication information indicates that the SIB1 is updated, receive the updated SIB1 at the first moment; and/or,

If the indication information indicates that at least one first system information block in the first system information block set has been updated, the updated at least one first system information block is received at the second moment.
The method according to any one of claims 2-5, wherein the method further comprises:

The at least one first system information block indicated by the indication information is determined according to an indication rule, where the indication rule corresponds to the terminal device.
The method according to any one of claims 1-6, wherein the method further comprises:

Obtain access instruction information;

Determine whether the network device allows the terminal device to access according to the access indication information.
The method according to claim 7, wherein said obtaining access indication information comprises:

The access indication information is obtained 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.
A method for transmitting system information, characterized in that the method includes:

Determining indication information, where the indication information is used to indicate whether the first system information is updated;

The indication information is sent through the physical downlink control channel PDCCH.
The method according to claim 9, wherein the method further comprises:

Send the updated first system information.
The method according to claim 9 or 10, wherein the first system information includes a system information block type 1 SIB1 and a first system information block set other than the SIB1, and the first system information block set Includes at least one first system information block.
The method according to any one of claims 9-11, wherein the indication identifier contained 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 , The DCI is carried in the PDCCH.
The method according to any one of claims 9-12, wherein the method further comprises:

Sending an indication rule corresponding to the terminal device, where the indication rule is used to determine the at least one first system information block indicated correspondingly by the indication information.
The method according to any one of claims 9-13, wherein the method further comprises:

Sending access indication information, where the access indication information is used to indicate whether the terminal device is allowed to access the network device.
The method according to claim 13, wherein the sending the access indication information comprises:

The access indication information is sent through the reserved bits in the time information carried by the DMRS, the synchronization signal block SSB, or the reserved bits of the MIB.
A communication device, characterized in that, the communication device includes:

The transceiver unit is configured to detect 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;

The processing unit is configured to, if it is determined that the indication information indicates that the first system information is updated, trigger the transceiver unit to receive the updated first system information.
The communication device according to claim 16, wherein the first system information includes a system information block type SIB1 and a first system information block set other than the SIB1, and the first system information block set Includes at least one first system information block.
The communication device according to claim 17, wherein 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, The DCI is carried in the PDCCH.
The communication device according to claim 17 or 18, wherein:

If the processing unit determines that the indication information indicates that the SIB1 is updated, trigger the transceiver unit to receive the updated SIB1 at the first moment; and/or,

If the processing unit determines that the indication information indicates that the first system information block set is updated, trigger the transceiver unit to receive the updated first system information block set at the second time.
The communication device according to claim 17 or 18, wherein:

If the processing unit determines that the indication information indicates that the SIB1 is updated, trigger the transceiver unit to receive the updated SIB1 at the first moment; and/or,

If the processing unit determines that the indication information indicates that at least one first system information block in the first system information block set is updated, trigger the transceiver unit to receive the updated at least one first system information at the second time Piece.
The communication device according to any one of claims 17-20, wherein the processing unit is further configured to:

The at least one first system information block indicated by the indication information is determined according to an indication rule, and the indication rule corresponds to the terminal device.
The communication device according to any one of claims 16-21, wherein:

The transceiving unit is also used to: obtain access indication information;

The processing unit is further configured to determine whether the network device allows the access terminal device to access according to the access indication information.
The communication device according to claim 22, wherein the transceiving unit is further configured to:

The access indication information is obtained 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.
A communication device, characterized in that, the communication device includes:

The determining unit is configured to determine indication information, where the indication information is used to indicate whether the first system information is updated;

The transceiver unit is configured to send the indication information through the physical downlink control channel PDCCH.
The communication device according to claim 24, wherein the transceiver unit is further configured to:

Send the updated first system information.
The communication device according to claim 24 or 25, wherein the first system information includes a system information block type 1 SIB1 and a first system information block set other than the SIB1, and the first system information block The set includes at least one first system information block.
The communication device according to any one of claims 24-26, wherein the indication identifier contained 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 Bits, the DCI is carried in the PDCCH.
The communication device according to any one of claims 24-27, wherein the transceiver unit is further configured to:

Sending an indication rule corresponding to the terminal device, where the indication rule is used to determine the at least one first system information block indicated correspondingly by the indication information.
The communication device according to any one of claims 24-28, wherein the transceiver unit is further configured to:

Sending access indication information, where the access indication information is used to indicate whether the terminal device is allowed to access the network device.
The communication device according to claim 29, wherein the transceiving unit is further configured to:

The access indication information is sent through the reserved bits in the time information carried by the DMRS, the synchronization signal block SSB, or the reserved bits of the MIB.
A readable storage medium for storing instructions. When the instructions are executed, the method according to any one of claims 1-8 is realized.
A readable storage medium for storing instructions. When the instructions are executed, the method according to any one of claims 9-15 is realized.
A communication device, characterized by comprising: at least one processor and a memory;

The memory is used to store a computer program;

The processor is configured to execute a computer program stored in the memory, so that the communication device executes the method according to any one of claims 1-8.
A communication device, characterized by comprising: at least one processor and a memory;

The memory is used to store a computer program;

The processor is configured to execute a computer program stored in the memory, so that the communication device executes the method according to any one of claims 9-15.
A communication device, characterized by comprising: 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 configured to execute the code instructions to execute the method according to any one of claims 1-8.
A device, characterized by comprising: 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 configured to execute the code instructions to execute the method according to any one of claims 9-15.